uboot-ramips: add support for MT7621, merge into uboot-mediatek

* Merge uboot-ramips into uboot-mediatek.
* Port support for the RAVPower RP WD009 to U-Boot 2022.07.
* Add support for MT7621 and add builds for the reference boards.
* Add builds for MT7620 and MT7628 reference boards.

This should help to make development of U-Boot-level board support for
all MediaTek targets much easier.

Signed-off-by: Daniel Golle <[email protected]>

package/boot/uboot-mediatek/Makefile

@@ -9,11 +9,59 @@ include $(INCLUDE_DIR)/u-boot.mk
 include $(INCLUDE_DIR)/package.mk
 include $(INCLUDE_DIR)/host-build.mk
 
+MT7621_LOWLEVEL_PRELOADER_URL:=https://raw.githubusercontent.com/mtk-openwrt/mt7621-lowlevel-preloader/master/
+
+define Download/mt7621-stage-sram
+  FILE:=mt7621_stage_sram.bin
+  URL:=$(MT7621_LOWLEVEL_PRELOADER_URL)
+  HASH:=1dda68aa089f0ff262e01539b990dea478952e9fb68bcc0a8cd6f76f0135c62e
+endef
+
+ifdef CONFIG_TARGET_ramips_mt7621
+$(eval $(call Download,mt7621-stage-sram))
+endif
+
 define U-Boot/Default
   BUILD_TARGET:=mediatek
   UBOOT_IMAGE:=u-boot-mtk.bin
 endef
 
+define U-Boot/mt7620_rfb
+  NAME:=MT7620 Reference Board
+  UBOOT_CONFIG:=mt7620_rfb
+  BUILD_DEVICES:=ralink_mt7620a-evb
+  BUILD_TARGET:=ramips
+  BUILD_SUBTARGET:=mt7620
+  UBOOT_IMAGE:=u-boot-with-spl.bin
+endef
+
+define U-Boot/mt7620_mt7530_rfb
+  NAME:=MT7620+MT7530 Reference Board
+  UBOOT_CONFIG:=mt7620_mt7530_rfb
+  BUILD_DEVICES:=ralink_mt7620a-mt7530-evb
+  BUILD_TARGET:=ramips
+  BUILD_SUBTARGET:=mt7620
+  UBOOT_IMAGE:=u-boot-with-spl.bin
+endef
+
+define U-Boot/mt7621_rfb
+  NAME:=MT7621 Reference Board
+  UBOOT_CONFIG:=mt7621_rfb
+  BUILD_DEVICES:=mediatek_mt7621-eval-board
+  BUILD_TARGET:=ramips
+  BUILD_SUBTARGET:=mt7621
+  UBOOT_IMAGE:=u-boot-mt7621.bin
+endef
+
+define U-Boot/mt7621_nand_rfb
+  NAME:=MT7621 Reference Board (NAND)
+  UBOOT_CONFIG:=mt7621_nand_rfb
+  BUILD_DEVICES:=mediatek_mt7621-eval-board
+  BUILD_TARGET:=ramips
+  BUILD_SUBTARGET:=mt7621
+  UBOOT_IMAGE:=u-boot-mt7621.bin
+endef
+
 define U-Boot/mt7622_rfb1
   NAME:=MT7622 Reference Board 1
   UBOOT_CONFIG:=mt7622_rfb
@@ -91,6 +139,24 @@ define U-Boot/mt7623n_bpir2
   UBOOT_CONFIG:=mt7623n_bpir2
 endef
 
+define U-Boot/mt7628_rfb
+  NAME:=MT7628 Reference Board
+  BUILD_DEVICES:=mediatek_mt7628an-eval-board
+  BUILD_TARGET:=ramips
+  BUILD_SUBTARGET:=mt76x8
+  UBOOT_CONFIG:=mt7628_rfb
+  UBOOT_IMAGE:=u-boot-with-spl.bin
+endef
+
+define U-Boot/ravpower_rp-wd009
+  NAME:=RAVPower RP-WD009
+  BUILD_TARGET:=ramips
+  BUILD_DEVICES:=ravpower_rp-wd009
+  BUILD_SUBTARGET:=mt76x8
+  UBOOT_CONFIG:=ravpower-rp-wd009-ram
+  UBOOT_IMAGE:=u-boot.bin
+endef
+
 define U-Boot/mt7629_rfb
   NAME:=MT7629 Reference Board
   BUILD_SUBTARGET:=mt7629
@@ -99,6 +165,10 @@ define U-Boot/mt7629_rfb
 endef
 
 UBOOT_TARGETS := \
+	mt7620_mt7530_rfb \
+	mt7620_rfb \
+	mt7621_nand_rfb \
+	mt7621_rfb \
 	mt7622_bananapi_bpi-r64-emmc \
 	mt7622_bananapi_bpi-r64-sdmmc \
 	mt7622_bananapi_bpi-r64-snand \
@@ -107,9 +177,13 @@ UBOOT_TARGETS := \
 	mt7622_ubnt_unifi-6-lr \
 	mt7623n_bpir2 \
 	mt7623a_unielec_u7623 \
+	mt7628_rfb \
+	ravpower_rp-wd009 \
 	mt7629_rfb
 
+ifdef CONFIG_TARGET_mediatek
 UBOOT_MAKE_FLAGS += $(UBOOT_IMAGE:.fip=.bin)
+endif
 
 define Build/fip-image
 	$(STAGING_DIR_HOST)/bin/fiptool create \
@@ -118,6 +192,13 @@ define Build/fip-image
 		$(PKG_BUILD_DIR)/u-boot.fip
 endef
 
+ifdef CONFIG_TARGET_ramips_mt7621
+define Build/Prepare
+	$(call Build/Prepare/Default)
+	$(CP) $(DL_DIR)/mt7621_stage_sram.bin $(PKG_BUILD_DIR)/
+endef
+endif
+
 define Build/Configure
 	$(call Build/Configure/U-Boot)
 	sed -i 's/CONFIG_TOOLS_LIBCRYPTO=y/# CONFIG_TOOLS_LIBCRYPTO is not set/' $(PKG_BUILD_DIR)/.config
@@ -131,8 +212,10 @@ endif
 endef
 
 # don't stage files to bindir, let target/linux/mediatek/image/*.mk do that
+ifdef CONFIG_TARGET_mediatek
 define Package/u-boot/install
 endef
+endif
 
 define Build/InstallDev
 	$(INSTALL_DIR) $(STAGING_DIR_IMAGE)

package/boot/uboot-mediatek/patches/001-mtk-0001-mips-add-asm-mipsmtregs.h-for-MIPS-multi-threading.patch

@@ -0,0 +1,169 @@
+From 65a4a80157bacde3cf86ce8cbc9a08f5f05ad9bb Mon Sep 17 00:00:00 2001
+From: Weijie Gao <[email protected]>
+Date: Fri, 20 May 2022 11:21:34 +0800
+Subject: [PATCH 01/25] mips: add asm/mipsmtregs.h for MIPS multi-threading
+
+To be compatible with old u-boot used by lots of MT7621 devices, the u-boot
+needs to boot-up MT7621's all cores, and all VPES of each core.
+
+This patch adds asm/mipsmtregs.h from linux kernel which is need for
+boot-up VPEs.
+
+Reviewed-by: Daniel Schwierzeck <[email protected]>
+Signed-off-by: Weijie Gao <[email protected]>
+---
+ arch/mips/include/asm/mipsmtregs.h | 142 +++++++++++++++++++++++++++++
+ 1 file changed, 142 insertions(+)
+ create mode 100644 arch/mips/include/asm/mipsmtregs.h
+
+diff --git a/arch/mips/include/asm/mipsmtregs.h b/arch/mips/include/asm/mipsmtregs.h
+new file mode 100644
+index 0000000000..ba82e2bd97
+--- /dev/null
++++ b/arch/mips/include/asm/mipsmtregs.h
+@@ -0,0 +1,142 @@
++/* SPDX-License-Identifier: GPL-2.0 */
++/*
++ * MT regs definitions, follows on from mipsregs.h
++ * Copyright (C) 2004 - 2005 MIPS Technologies, Inc.  All rights reserved.
++ * Elizabeth Clarke et. al.
++ *
++ */
++#ifndef _ASM_MIPSMTREGS_H
++#define _ASM_MIPSMTREGS_H
++
++#include <asm/mipsregs.h>
++
++/*
++ * Macros for use in assembly language code
++ */
++
++#define CP0_MVPCONTROL		$0, 1
++#define CP0_MVPCONF0		$0, 2
++#define CP0_MVPCONF1		$0, 3
++#define CP0_VPECONTROL		$1, 1
++#define CP0_VPECONF0		$1, 2
++#define CP0_VPECONF1		$1, 3
++#define CP0_YQMASK		$1, 4
++#define CP0_VPESCHEDULE		$1, 5
++#define CP0_VPESCHEFBK		$1, 6
++#define CP0_TCSTATUS		$2, 1
++#define CP0_TCBIND		$2, 2
++#define CP0_TCRESTART		$2, 3
++#define CP0_TCHALT		$2, 4
++#define CP0_TCCONTEXT		$2, 5
++#define CP0_TCSCHEDULE		$2, 6
++#define CP0_TCSCHEFBK		$2, 7
++#define CP0_SRSCONF0		$6, 1
++#define CP0_SRSCONF1		$6, 2
++#define CP0_SRSCONF2		$6, 3
++#define CP0_SRSCONF3		$6, 4
++#define CP0_SRSCONF4		$6, 5
++
++/* MVPControl fields */
++#define MVPCONTROL_EVP		(_ULCAST_(1))
++
++#define MVPCONTROL_VPC_SHIFT	1
++#define MVPCONTROL_VPC		(_ULCAST_(1) << MVPCONTROL_VPC_SHIFT)
++
++#define MVPCONTROL_STLB_SHIFT	2
++#define MVPCONTROL_STLB		(_ULCAST_(1) << MVPCONTROL_STLB_SHIFT)
++
++/* MVPConf0 fields */
++#define MVPCONF0_PTC_SHIFT	0
++#define MVPCONF0_PTC		(_ULCAST_(0xff))
++#define MVPCONF0_PVPE_SHIFT	10
++#define MVPCONF0_PVPE		(_ULCAST_(0xf) << MVPCONF0_PVPE_SHIFT)
++#define MVPCONF0_TCA_SHIFT	15
++#define MVPCONF0_TCA		(_ULCAST_(1) << MVPCONF0_TCA_SHIFT)
++#define MVPCONF0_PTLBE_SHIFT	16
++#define MVPCONF0_PTLBE		(_ULCAST_(0x3ff) << MVPCONF0_PTLBE_SHIFT)
++#define MVPCONF0_TLBS_SHIFT	29
++#define MVPCONF0_TLBS		(_ULCAST_(1) << MVPCONF0_TLBS_SHIFT)
++#define MVPCONF0_M_SHIFT	31
++#define MVPCONF0_M		(_ULCAST_(0x1) << MVPCONF0_M_SHIFT)
++
++/* config3 fields */
++#define CONFIG3_MT_SHIFT	2
++#define CONFIG3_MT		(_ULCAST_(1) << CONFIG3_MT_SHIFT)
++
++/* VPEControl fields (per VPE) */
++#define VPECONTROL_TARGTC	(_ULCAST_(0xff))
++
++#define VPECONTROL_TE_SHIFT	15
++#define VPECONTROL_TE		(_ULCAST_(1) << VPECONTROL_TE_SHIFT)
++#define VPECONTROL_EXCPT_SHIFT	16
++#define VPECONTROL_EXCPT	(_ULCAST_(0x7) << VPECONTROL_EXCPT_SHIFT)
++
++/* Thread Exception Codes for EXCPT field */
++#define THREX_TU		0
++#define THREX_TO		1
++#define THREX_IYQ		2
++#define THREX_GSX		3
++#define THREX_YSCH		4
++#define THREX_GSSCH		5
++
++#define VPECONTROL_GSI_SHIFT	20
++#define VPECONTROL_GSI		(_ULCAST_(1) << VPECONTROL_GSI_SHIFT)
++#define VPECONTROL_YSI_SHIFT	21
++#define VPECONTROL_YSI		(_ULCAST_(1) << VPECONTROL_YSI_SHIFT)
++
++/* VPEConf0 fields (per VPE) */
++#define VPECONF0_VPA_SHIFT	0
++#define VPECONF0_VPA		(_ULCAST_(1) << VPECONF0_VPA_SHIFT)
++#define VPECONF0_MVP_SHIFT	1
++#define VPECONF0_MVP		(_ULCAST_(1) << VPECONF0_MVP_SHIFT)
++#define VPECONF0_XTC_SHIFT	21
++#define VPECONF0_XTC		(_ULCAST_(0xff) << VPECONF0_XTC_SHIFT)
++
++/* VPEConf1 fields (per VPE) */
++#define VPECONF1_NCP1_SHIFT	0
++#define VPECONF1_NCP1		(_ULCAST_(0xff) << VPECONF1_NCP1_SHIFT)
++#define VPECONF1_NCP2_SHIFT	10
++#define VPECONF1_NCP2		(_ULCAST_(0xff) << VPECONF1_NCP2_SHIFT)
++#define VPECONF1_NCX_SHIFT	20
++#define VPECONF1_NCX		(_ULCAST_(0xff) << VPECONF1_NCX_SHIFT)
++
++/* TCStatus fields (per TC) */
++#define TCSTATUS_TASID		(_ULCAST_(0xff))
++#define TCSTATUS_IXMT_SHIFT	10
++#define TCSTATUS_IXMT		(_ULCAST_(1) << TCSTATUS_IXMT_SHIFT)
++#define TCSTATUS_TKSU_SHIFT	11
++#define TCSTATUS_TKSU		(_ULCAST_(3) << TCSTATUS_TKSU_SHIFT)
++#define TCSTATUS_A_SHIFT	13
++#define TCSTATUS_A		(_ULCAST_(1) << TCSTATUS_A_SHIFT)
++#define TCSTATUS_DA_SHIFT	15
++#define TCSTATUS_DA		(_ULCAST_(1) << TCSTATUS_DA_SHIFT)
++#define TCSTATUS_DT_SHIFT	20
++#define TCSTATUS_DT		(_ULCAST_(1) << TCSTATUS_DT_SHIFT)
++#define TCSTATUS_TDS_SHIFT	21
++#define TCSTATUS_TDS		(_ULCAST_(1) << TCSTATUS_TDS_SHIFT)
++#define TCSTATUS_TSST_SHIFT	22
++#define TCSTATUS_TSST		(_ULCAST_(1) << TCSTATUS_TSST_SHIFT)
++#define TCSTATUS_RNST_SHIFT	23
++#define TCSTATUS_RNST		(_ULCAST_(3) << TCSTATUS_RNST_SHIFT)
++/* Codes for RNST */
++#define TC_RUNNING		0
++#define TC_WAITING		1
++#define TC_YIELDING		2
++#define TC_GATED		3
++
++#define TCSTATUS_TMX_SHIFT	27
++#define TCSTATUS_TMX		(_ULCAST_(1) << TCSTATUS_TMX_SHIFT)
++/* TCStatus TCU bits can use same definitions/offsets as CU bits in Status */
++
++/* TCBind */
++#define TCBIND_CURVPE_SHIFT	0
++#define TCBIND_CURVPE		(_ULCAST_(0xf))
++
++#define TCBIND_CURTC_SHIFT	21
++
++#define TCBIND_CURTC		(_ULCAST_(0xff) << TCBIND_CURTC_SHIFT)
++
++/* TCHalt */
++#define TCHALT_H		(_ULCAST_(1))
++
++#endif
+-- 
+2.36.1
+

package/boot/uboot-mediatek/patches/001-mtk-0002-mips-add-more-definitions-for-asm-cm.h.patch

@@ -0,0 +1,116 @@
+From be570e7b0ce004127a7cc97bfae30037fc42a340 Mon Sep 17 00:00:00 2001
+From: Weijie Gao <[email protected]>
+Date: Fri, 20 May 2022 11:21:39 +0800
+Subject: [PATCH 02/25] mips: add more definitions for asm/cm.h
+
+This patch add more definitions needed for MT7621 initialization.
+MT7621 needs to initialize GIC/CPC and other related parts.
+
+Reviewed-by: Daniel Schwierzeck <[email protected]>
+Signed-off-by: Weijie Gao <[email protected]>
+---
+ arch/mips/include/asm/cm.h | 67 ++++++++++++++++++++++++++++++++++++++
+ 1 file changed, 67 insertions(+)
+
+diff --git a/arch/mips/include/asm/cm.h b/arch/mips/include/asm/cm.h
+index 99ddbccd80..5cc8c09621 100644
+--- a/arch/mips/include/asm/cm.h
++++ b/arch/mips/include/asm/cm.h
+@@ -8,9 +8,23 @@
+ #define __MIPS_ASM_CM_H__
+ 
+ /* Global Control Register (GCR) offsets */
++#define GCR_CONFIG			0x0000
+ #define GCR_BASE			0x0008
+ #define GCR_BASE_UPPER			0x000c
++#define GCR_CONTROL			0x0010
++#define GCR_ACCESS			0x0020
+ #define GCR_REV				0x0030
++#define GCR_GIC_BASE			0x0080
++#define GCR_CPC_BASE			0x0088
++#define GCR_REG0_BASE			0x0090
++#define GCR_REG0_MASK			0x0098
++#define GCR_REG1_BASE			0x00a0
++#define GCR_REG1_MASK			0x00a8
++#define GCR_REG2_BASE			0x00b0
++#define GCR_REG2_MASK			0x00b8
++#define GCR_REG3_BASE			0x00c0
++#define GCR_REG3_MASK			0x00c8
++#define GCR_CPC_STATUS			0x00f0
+ #define GCR_L2_CONFIG			0x0130
+ #define GCR_L2_TAG_ADDR			0x0600
+ #define GCR_L2_TAG_ADDR_UPPER		0x0604
+@@ -19,10 +33,59 @@
+ #define GCR_L2_DATA			0x0610
+ #define GCR_L2_DATA_UPPER		0x0614
+ #define GCR_Cx_COHERENCE		0x2008
++#define GCR_Cx_OTHER			0x2018
++#define GCR_Cx_ID			0x2028
++#define GCR_CO_COHERENCE		0x4008
++
++/* GCR_CONFIG fields */
++#define GCR_CONFIG_NUM_CLUSTERS_SHIFT	23
++#define GCR_CONFIG_NUM_CLUSTERS		(0x7f << 23)
++#define GCR_CONFIG_NUMIOCU_SHIFT	8
++#define GCR_CONFIG_NUMIOCU		(0xff << 8)
++#define GCR_CONFIG_PCORES_SHIFT		0
++#define GCR_CONFIG_PCORES		(0xff << 0)
++
++/* GCR_BASE fields */
++#define GCR_BASE_SHIFT			15
++#define CCA_DEFAULT_OVR_SHIFT		5
++#define CCA_DEFAULT_OVR_MASK		(0x7 << 5)
++#define CCA_DEFAULT_OVREN		(0x1 << 4)
++#define CM_DEFAULT_TARGET_SHIFT		0
++#define CM_DEFAULT_TARGET_MASK		(0x3 << 0)
++
++/* GCR_CONTROL fields */
++#define GCR_CONTROL_SYNCCTL		(0x1 << 16)
+ 
+ /* GCR_REV CM versions */
+ #define GCR_REV_CM3			0x0800
+ 
++/* GCR_GIC_BASE fields */
++#define GCR_GIC_BASE_ADDRMASK_SHIFT	7
++#define GCR_GIC_BASE_ADDRMASK		(0x1ffffff << 7)
++#define GCR_GIC_EN			(0x1 << 0)
++
++/* GCR_CPC_BASE fields */
++#define GCR_CPC_BASE_ADDRMASK_SHIFT	15
++#define GCR_CPC_BASE_ADDRMASK		(0x1ffff << 15)
++#define GCR_CPC_EN			(0x1 << 0)
++
++/* GCR_REGn_MASK fields */
++#define GCR_REGn_MASK_ADDRMASK_SHIFT	16
++#define GCR_REGn_MASK_ADDRMASK		(0xffff << 16)
++#define GCR_REGn_MASK_CCAOVR_SHIFT	5
++#define GCR_REGn_MASK_CCAOVR		(0x7 << 5)
++#define GCR_REGn_MASK_CCAOVREN		(1 << 4)
++#define GCR_REGn_MASK_DROPL2		(1 << 2)
++#define GCR_REGn_MASK_CMTGT_SHIFT	0
++#define GCR_REGn_MASK_CMTGT		(0x3 << 0)
++#define  GCR_REGn_MASK_CMTGT_DISABLED	0x0
++#define  GCR_REGn_MASK_CMTGT_MEM	0x1
++#define  GCR_REGn_MASK_CMTGT_IOCU0	0x2
++#define  GCR_REGn_MASK_CMTGT_IOCU1	0x3
++
++/* GCR_CPC_STATUS fields */
++#define GCR_CPC_EX			(0x1 << 0)
++
+ /* GCR_L2_CONFIG fields */
+ #define GCR_L2_CONFIG_ASSOC_SHIFT	0
+ #define GCR_L2_CONFIG_ASSOC_BITS	8
+@@ -36,6 +99,10 @@
+ #define GCR_Cx_COHERENCE_DOM_EN		(0xff << 0)
+ #define GCR_Cx_COHERENCE_EN		(0x1 << 0)
+ 
++/* GCR_Cx_OTHER fields */
++#define GCR_Cx_OTHER_CORENUM_SHIFT	16
++#define GCR_Cx_OTHER_CORENUM		(0xffff << 16)
++
+ #ifndef __ASSEMBLY__
+ 
+ #include <asm/io.h>
+-- 
+2.36.1
+

package/boot/uboot-mediatek/patches/001-mtk-0003-mips-add-__image_copy_len-for-SPL-linker-script.patch

@@ -0,0 +1,40 @@
+From 71ebc3d25147172e219ea87bec061f751257395b Mon Sep 17 00:00:00 2001
+From: Weijie Gao <[email protected]>
+Date: Fri, 20 May 2022 11:21:45 +0800
+Subject: [PATCH 03/25] mips: add __image_copy_len for SPL linker script
+
+This patch adds __image_copy_len needed by TPL of MT7621 SoC.
+The __image_copy_len represents the binary blob size of both SPL/TPL
+binaries. To achieve this, __text_start/end are added for calculation.
+
+Reviewed-by: Daniel Schwierzeck <[email protected]>
+Signed-off-by: Weijie Gao <[email protected]>
+---
+ arch/mips/cpu/u-boot-spl.lds | 3 +++
+ 1 file changed, 3 insertions(+)
+
+diff --git a/arch/mips/cpu/u-boot-spl.lds b/arch/mips/cpu/u-boot-spl.lds
+index 28ea4f2a48..f88754ab56 100644
+--- a/arch/mips/cpu/u-boot-spl.lds
++++ b/arch/mips/cpu/u-boot-spl.lds
+@@ -13,7 +13,9 @@ SECTIONS
+ 
+ 	. = ALIGN(4);
+ 	.text : {
++		__text_start = .;
+ 		*(.text*)
++		__text_end = .;
+ 	} > .spl_mem
+ 
+ 	. = ALIGN(4);
+@@ -36,6 +38,7 @@ SECTIONS
+ 
+ 	. = ALIGN(4);
+ 	__image_copy_end = .;
++	__image_copy_len = __image_copy_end - __text_start;
+ 
+ 	_image_binary_end = .;
+ 
+-- 
+2.36.1
+

package/boot/uboot-mediatek/patches/001-mtk-0004-mips-add-support-for-noncached_alloc.patch

@@ -0,0 +1,111 @@
+From d7cfa1cb5602a1d936df36ee70869753835de28e Mon Sep 17 00:00:00 2001
+From: Weijie Gao <[email protected]>
+Date: Fri, 20 May 2022 11:21:51 +0800
+Subject: [PATCH 04/25] mips: add support for noncached_alloc()
+
+This patch adds support for noncached_alloc() which was only supported by
+ARM platform.
+
+Unlike the ARM platform, MMU is not used in u-boot for MIPS. Instead, KSEG
+is provided to access uncached memory. So most code of this patch is copied
+from cache.c of ARM platform, with only two differences:
+1. MMU is untouched in noncached_set_region()
+2. Address returned by noncached_alloc() is converted using KSEG1ADDR()
+
+Reviewed-by: Daniel Schwierzeck <[email protected]>
+Signed-off-by: Weijie Gao <[email protected]>
+---
+ arch/mips/include/asm/system.h | 20 ++++++++++++++++
+ arch/mips/lib/cache.c          | 43 ++++++++++++++++++++++++++++++++++
+ 2 files changed, 63 insertions(+)
+
+diff --git a/arch/mips/include/asm/system.h b/arch/mips/include/asm/system.h
+index 79e638844b..89a2ac209f 100644
+--- a/arch/mips/include/asm/system.h
++++ b/arch/mips/include/asm/system.h
+@@ -282,4 +282,24 @@ static inline void instruction_hazard_barrier(void)
+ 	: "=&r"(tmp));
+ }
+ 
++#ifdef CONFIG_SYS_NONCACHED_MEMORY
++/* 1MB granularity */
++#define MMU_SECTION_SHIFT	20
++#define MMU_SECTION_SIZE	(1 << MMU_SECTION_SHIFT)
++
++/**
++ * noncached_init() - Initialize non-cached memory region
++ *
++ * Initialize non-cached memory area. This memory region will be typically
++ * located right below the malloc() area and be accessed from KSEG1.
++ *
++ * It is called during the generic post-relocation init sequence.
++ *
++ * Return: 0 if OK
++ */
++int noncached_init(void);
++
++phys_addr_t noncached_alloc(size_t size, size_t align);
++#endif /* CONFIG_SYS_NONCACHED_MEMORY */
++
+ #endif /* _ASM_SYSTEM_H */
+diff --git a/arch/mips/lib/cache.c b/arch/mips/lib/cache.c
+index ec652f0fba..d23b38d6b9 100644
+--- a/arch/mips/lib/cache.c
++++ b/arch/mips/lib/cache.c
+@@ -6,6 +6,7 @@
+ 
+ #include <common.h>
+ #include <cpu_func.h>
++#include <malloc.h>
+ #include <asm/cache.h>
+ #include <asm/cacheops.h>
+ #include <asm/cm.h>
+@@ -197,3 +198,45 @@ void dcache_disable(void)
+ 	/* ensure the pipeline doesn't contain now-invalid instructions */
+ 	instruction_hazard_barrier();
+ }
++
++#ifdef CONFIG_SYS_NONCACHED_MEMORY
++static unsigned long noncached_start;
++static unsigned long noncached_end;
++static unsigned long noncached_next;
++
++void noncached_set_region(void)
++{
++}
++
++int noncached_init(void)
++{
++	phys_addr_t start, end;
++	size_t size;
++
++	/* If this calculation changes, update board_f.c:reserve_noncached() */
++	end = ALIGN(mem_malloc_start, MMU_SECTION_SIZE) - MMU_SECTION_SIZE;
++	size = ALIGN(CONFIG_SYS_NONCACHED_MEMORY, MMU_SECTION_SIZE);
++	start = end - size;
++
++	debug("mapping memory %pa-%pa non-cached\n", &start, &end);
++
++	noncached_start = start;
++	noncached_end = end;
++	noncached_next = start;
++
++	return 0;
++}
++
++phys_addr_t noncached_alloc(size_t size, size_t align)
++{
++	phys_addr_t next = ALIGN(noncached_next, align);
++
++	if (next >= noncached_end || (noncached_end - next) < size)
++		return 0;
++
++	debug("allocated %zu bytes of uncached memory @%pa\n", size, &next);
++	noncached_next = next + size;
++
++	return CKSEG1ADDR(next);
++}
++#endif /* CONFIG_SYS_NONCACHED_MEMORY */
+-- 
+2.36.1
+

package/boot/uboot-mediatek/patches/001-mtk-0005-mips-mtmips-add-support-for-MediaTek-MT7621-SoC.patch

@@ -0,0 +1,2979 @@
+From e0c82f36ad5180d9582d353407ff1bf34a2734bb Mon Sep 17 00:00:00 2001
+From: Weijie Gao <[email protected]>
+Date: Fri, 20 May 2022 11:22:21 +0800
+Subject: [PATCH 05/25] mips: mtmips: add support for MediaTek MT7621 SoC
+
+This patch adds support for MediaTek MT7621 SoC.
+All files are dedicated for u-boot.
+
+The default build target is u-boot-mt7621.bin.
+
+The specification of this chip:
+https://www.mediatek.com/products/homenetworking/mt7621
+
+Reviewed-by: Daniel Schwierzeck <[email protected]>
+Signed-off-by: Weijie Gao <[email protected]>
+---
+ arch/mips/dts/mt7621-u-boot.dtsi             | 111 ++++++
+ arch/mips/dts/mt7621.dtsi                    | 349 +++++++++++++++++++
+ arch/mips/mach-mtmips/Kconfig                |  49 ++-
+ arch/mips/mach-mtmips/Makefile               |   4 +
+ arch/mips/mach-mtmips/cpu.c                  |   2 +-
+ arch/mips/mach-mtmips/mt7621/Kconfig         |  95 +++++
+ arch/mips/mach-mtmips/mt7621/Makefile        |  14 +
+ arch/mips/mach-mtmips/mt7621/init.c          | 246 +++++++++++++
+ arch/mips/mach-mtmips/mt7621/mt7621.h        | 229 ++++++++++++
+ arch/mips/mach-mtmips/mt7621/serial.c        |  23 ++
+ arch/mips/mach-mtmips/mt7621/spl/Makefile    |   9 +
+ arch/mips/mach-mtmips/mt7621/spl/cps.c       | 153 ++++++++
+ arch/mips/mach-mtmips/mt7621/spl/dram.c      | 153 ++++++++
+ arch/mips/mach-mtmips/mt7621/spl/dram.h      |  39 +++
+ arch/mips/mach-mtmips/mt7621/spl/launch.c    | 100 ++++++
+ arch/mips/mach-mtmips/mt7621/spl/launch.h    |  52 +++
+ arch/mips/mach-mtmips/mt7621/spl/launch_ll.S | 339 ++++++++++++++++++
+ arch/mips/mach-mtmips/mt7621/spl/serial.c    |  24 ++
+ arch/mips/mach-mtmips/mt7621/spl/spl.c       |  95 +++++
+ arch/mips/mach-mtmips/mt7621/spl/start.S     | 226 ++++++++++++
+ arch/mips/mach-mtmips/mt7621/sram_init.S     |  22 ++
+ arch/mips/mach-mtmips/mt7621/tpl/Makefile    |   4 +
+ arch/mips/mach-mtmips/mt7621/tpl/start.S     | 161 +++++++++
+ arch/mips/mach-mtmips/mt7621/tpl/tpl.c       | 144 ++++++++
+ include/configs/mt7621.h                     |  65 ++++
+ 25 files changed, 2702 insertions(+), 6 deletions(-)
+ create mode 100644 arch/mips/dts/mt7621-u-boot.dtsi
+ create mode 100644 arch/mips/dts/mt7621.dtsi
+ create mode 100644 arch/mips/mach-mtmips/mt7621/Kconfig
+ create mode 100644 arch/mips/mach-mtmips/mt7621/Makefile
+ create mode 100644 arch/mips/mach-mtmips/mt7621/init.c
+ create mode 100644 arch/mips/mach-mtmips/mt7621/mt7621.h
+ create mode 100644 arch/mips/mach-mtmips/mt7621/serial.c
+ create mode 100644 arch/mips/mach-mtmips/mt7621/spl/Makefile
+ create mode 100644 arch/mips/mach-mtmips/mt7621/spl/cps.c
+ create mode 100644 arch/mips/mach-mtmips/mt7621/spl/dram.c
+ create mode 100644 arch/mips/mach-mtmips/mt7621/spl/dram.h
+ create mode 100644 arch/mips/mach-mtmips/mt7621/spl/launch.c
+ create mode 100644 arch/mips/mach-mtmips/mt7621/spl/launch.h
+ create mode 100644 arch/mips/mach-mtmips/mt7621/spl/launch_ll.S
+ create mode 100644 arch/mips/mach-mtmips/mt7621/spl/serial.c
+ create mode 100644 arch/mips/mach-mtmips/mt7621/spl/spl.c
+ create mode 100644 arch/mips/mach-mtmips/mt7621/spl/start.S
+ create mode 100644 arch/mips/mach-mtmips/mt7621/sram_init.S
+ create mode 100644 arch/mips/mach-mtmips/mt7621/tpl/Makefile
+ create mode 100644 arch/mips/mach-mtmips/mt7621/tpl/start.S
+ create mode 100644 arch/mips/mach-mtmips/mt7621/tpl/tpl.c
+ create mode 100644 include/configs/mt7621.h
+
+diff --git a/arch/mips/dts/mt7621-u-boot.dtsi b/arch/mips/dts/mt7621-u-boot.dtsi
+new file mode 100644
+index 0000000000..c5a8aa357f
+--- /dev/null
++++ b/arch/mips/dts/mt7621-u-boot.dtsi
+@@ -0,0 +1,111 @@
++// SPDX-License-Identifier: GPL-2.0
++/*
++ * Copyright (C) 2022 MediaTek Inc. All rights reserved.
++ *
++ * Author: Weijie Gao <[email protected]>
++ */
++
++#include <linux/stringify.h>
++
++/ {
++	binman: binman {
++		multiple-images;
++	};
++};
++
++&sysc {
++	u-boot,dm-pre-reloc;
++};
++
++&reboot {
++	u-boot,dm-pre-reloc;
++};
++
++&clkctrl {
++	u-boot,dm-pre-reloc;
++};
++
++&rstctrl {
++	u-boot,dm-pre-reloc;
++};
++
++&pinctrl {
++	u-boot,dm-pre-reloc;
++};
++
++&uart0 {
++	u-boot,dm-pre-reloc;
++};
++
++&uart1 {
++	u-boot,dm-pre-reloc;
++};
++
++&uart2 {
++	u-boot,dm-pre-reloc;
++};
++
++&binman {
++	u-boot-spl-ddr {
++		align = <4>;
++		align-size = <4>;
++		filename = "u-boot-spl-ddr.bin";
++		pad-byte = <0xff>;
++
++		u-boot-spl {
++			align-end = <4>;
++			filename = "u-boot-spl.bin";
++		};
++
++		stage_bin {
++			filename = "mt7621_stage_sram.bin";
++			type = "blob-ext";
++		};
++	};
++
++	spl-img {
++		filename = "u-boot-spl-ddr.img";
++
++		mkimage {
++#ifdef CONFIG_MT7621_BOOT_FROM_NAND
++			args = "-T", "mtk_image", "-n", "mt7621=1",
++			       "-a", __stringify(CONFIG_SPL_TEXT_BASE),
++			       "-e", __stringify(CONFIG_SPL_TEXT_BASE);
++#else
++			args = "-A", "mips", "-T", "standalone", "-O", "u-boot",
++			       "-C", "none", "-n", "MT7621 U-Boot SPL",
++			       "-a", __stringify(CONFIG_SPL_TEXT_BASE),
++			       "-e", __stringify(CONFIG_SPL_TEXT_BASE);
++#endif
++
++			blob {
++				filename = "u-boot-spl-ddr.bin";
++			};
++		};
++	};
++
++	mt7621-uboot {
++		filename = "u-boot-mt7621.bin";
++		pad-byte = <0xff>;
++
++#ifndef CONFIG_MT7621_BOOT_FROM_NAND
++		u-boot-tpl {
++			align-end = <4>;
++			filename = "u-boot-tpl.bin";
++		};
++#endif
++
++		spl {
++#ifdef CONFIG_MT7621_BOOT_FROM_NAND
++			align-end = <0x1000>;
++#endif
++			filename = "u-boot-spl-ddr.img";
++			type = "blob";
++		};
++
++		u-boot {
++			filename = "u-boot-lzma.img";
++			type = "blob";
++		};
++	};
++};
+diff --git a/arch/mips/dts/mt7621.dtsi b/arch/mips/dts/mt7621.dtsi
+new file mode 100644
+index 0000000000..c32b6095e9
+--- /dev/null
++++ b/arch/mips/dts/mt7621.dtsi
+@@ -0,0 +1,349 @@
++// SPDX-License-Identifier: GPL-2.0
++/*
++ * Copyright (C) 2022 MediaTek Inc. All rights reserved.
++ *
++ * Author: Weijie Gao <[email protected]>
++ */
++
++#include <dt-bindings/clock/mt7621-clk.h>
++#include <dt-bindings/reset/mt7621-reset.h>
++#include <dt-bindings/phy/phy.h>
++
++/ {
++	#address-cells = <1>;
++	#size-cells = <1>;
++	compatible = "mediatek,mt7621-soc";
++
++	cpus {
++		#address-cells = <1>;
++		#size-cells = <0>;
++
++		cpu@0 {
++			device_type = "cpu";
++			compatible = "mips,mips1004Kc";
++			reg = <0>;
++		};
++
++		cpu@1 {
++			device_type = "cpu";
++			compatible = "mips,mips1004Kc";
++			reg = <1>;
++		};
++	};
++
++	clk48m: clk48m {
++		compatible = "fixed-clock";
++
++		clock-frequency = <48000000>;
++
++		#clock-cells = <0>;
++	};
++
++	clk50m: clk50m {
++		compatible = "fixed-clock";
++
++		clock-frequency = <50000000>;
++
++		#clock-cells = <0>;
++	};
++
++	sysc: sysctrl@1e000000 {
++		compatible = "mediatek,mt7621-sysc", "syscon";
++		reg = <0x1e000000 0x100>;
++
++		clkctrl: clock-controller@1e000030 {
++			compatible = "mediatek,mt7621-clk";
++			mediatek,memc = <&memc>;
++
++			#clock-cells = <1>;
++		};
++	};
++
++	rstctrl: reset-controller@1e000034 {
++		compatible = "mediatek,mtmips-reset";
++		reg = <0x1e000034 0x4>;
++		#reset-cells = <1>;
++	};
++
++	reboot: resetctl-reboot {
++		compatible = "resetctl-reboot";
++
++		resets = <&rstctrl RST_SYS>;
++		reset-names = "sysreset";
++	};
++
++	memc: memctrl@1e005000 {
++		compatible = "mediatek,mt7621-memc", "syscon";
++		reg = <0x1e005000 0x1000>;
++	};
++
++	pinctrl: pinctrl@1e000060 {
++		compatible = "mediatek,mt7621-pinctrl";
++		reg = <0x1e000048 0x30>;
++
++		pinctrl-names = "default";
++		pinctrl-0 = <&state_default>;
++
++		state_default: pin_state {
++		};
++
++		uart1_pins: uart1_pins {
++			groups = "uart1";
++			function = "uart";
++		};
++
++		uart2_pins: uart2_pins {
++			groups = "uart2";
++			function = "uart";
++		};
++
++		uart3_pins: uart3_pins {
++			groups = "uart3";
++			function = "uart";
++		};
++
++		sdxc_pins: sdxc_pins {
++			groups = "sdxc";
++			function = "sdxc";
++		};
++
++		spi_pins: spi_pins {
++			groups = "spi";
++			function = "spi";
++		};
++
++		eth_pins: eth_pins {
++			mdio_pins {
++				groups = "mdio";
++				function = "mdio";
++			};
++
++			rgmii1_pins {
++				groups = "rgmii1";
++				function = "rgmii";
++			};
++
++			esw_pins {
++				groups = "esw int";
++				function = "esw int";
++			};
++
++			mdio_pconf {
++				groups = "mdio";
++				drive-strength = <2>;
++			};
++		};
++	};
++
++	watchdog: watchdog@1e000100 {
++		compatible = "mediatek,mt7621-wdt";
++		reg = <0x1e000100 0x40>;
++
++		resets = <&rstctrl RST_TIMER>;
++		reset-names = "wdt";
++
++		status = "disabled";
++	};
++
++	gpio: gpio@1e000600 {
++		#address-cells = <1>;
++		#size-cells = <0>;
++
++		compatible = "mtk,mt7621-gpio";
++		reg = <0x1e000600 0x100>;
++
++		resets = <&rstctrl RST_PIO>;
++		reset-names = "pio";
++
++		gpio0: bank@0 {
++			reg = <0>;
++			compatible = "mtk,mt7621-gpio-bank";
++			gpio-controller;
++			#gpio-cells = <2>;
++		};
++
++		gpio1: bank@1 {
++			reg = <1>;
++			compatible = "mtk,mt7621-gpio-bank";
++			gpio-controller;
++			#gpio-cells = <2>;
++		};
++
++		gpio2: bank@2 {
++			reg = <2>;
++			compatible = "mtk,mt7621-gpio-bank";
++			gpio-controller;
++			#gpio-cells = <2>;
++		};
++	};
++
++	spi: spi@1e000b00 {
++		compatible = "ralink,mt7621-spi";
++		reg = <0x1e000b00 0x40>;
++
++		status = "disabled";
++
++		pinctrl-names = "default";
++		pinctrl-0 = <&spi_pins>;
++
++		resets = <&rstctrl RST_SPI>;
++		reset-names = "spi";
++
++		clocks = <&clkctrl MT7621_CLK_SPI>;
++
++		#address-cells = <1>;
++		#size-cells = <0>;
++	};
++
++	uart0: uart1@1e000c00 {
++		compatible = "mediatek,hsuart", "ns16550a";
++		reg = <0x1e000c00 0x100>;
++
++		pinctrl-names = "default";
++		pinctrl-0 = <&uart1_pins>;
++
++		clocks = <&clkctrl MT7621_CLK_UART1>;
++
++		resets = <&rstctrl RST_UART1>;
++
++		reg-shift = <2>;
++	};
++
++	uart1: uart2@1e000d00 {
++		compatible = "mediatek,hsuart", "ns16550a";
++		reg = <0x1e000d00 0x100>;
++
++		pinctrl-names = "default";
++		pinctrl-0 = <&uart2_pins>;
++
++		clocks = <&clkctrl MT7621_CLK_UART2>;
++
++		resets = <&rstctrl RST_UART2>;
++
++		reg-shift = <2>;
++
++		status = "disabled";
++	};
++
++	uart2: uart3@1e000e00 {
++		compatible = "mediatek,hsuart", "ns16550a";
++		reg = <0x1e000e00 0x100>;
++
++		pinctrl-names = "default";
++		pinctrl-0 = <&uart3_pins>;
++
++		clocks = <&clkctrl MT7621_CLK_UART3>;
++
++		resets = <&rstctrl RST_UART3>;
++
++		reg-shift = <2>;
++
++		status = "disabled";
++	};
++
++	eth: eth@1e100000 {
++		compatible = "mediatek,mt7621-eth";
++		reg = <0x1e100000 0x20000>;
++		mediatek,ethsys = <&sysc>;
++
++		pinctrl-names = "default";
++		pinctrl-0 = <&eth_pins>;
++
++		resets = <&rstctrl RST_FE>, <&rstctrl RST_GMAC>, <&rstctrl RST_MCM>;
++		reset-names = "fe", "gmac", "mcm";
++
++		clocks = <&clkctrl MT7621_CLK_GDMA>,
++			 <&clkctrl MT7621_CLK_ETH>;
++		clock-names = "gmac", "fe";
++
++		#address-cells = <1>;
++		#size-cells = <0>;
++
++		mediatek,gmac-id = <0>;
++		phy-mode = "rgmii";
++		mediatek,switch = "mt7530";
++		mediatek,mcm;
++
++		fixed-link {
++			speed = <1000>;
++			full-duplex;
++		};
++	};
++
++	mmc: mmc@1e130000 {
++		compatible = "mediatek,mt7621-mmc";
++		reg = <0x1e130000 0x4000>;
++
++		status = "disabled";
++
++		bus-width = <4>;
++		builtin-cd = <1>;
++		r_smpl = <1>;
++
++		pinctrl-names = "default";
++		pinctrl-0 = <&sdxc_pins>;
++
++		clocks = <&clk50m>, <&clkctrl MT7621_CLK_SHXC>;
++		clock-names = "source", "hclk";
++
++		resets = <&rstctrl RST_SDXC>;
++	};
++
++	ssusb: usb@1e1c0000 {
++		compatible = "mediatek,mt7621-xhci", "mediatek,mtk-xhci";
++		reg = <0x1e1c0000 0x1000>, <0x1e1d0700 0x100>;
++		reg-names = "mac", "ippc";
++
++		clocks = <&clk48m>, <&clk48m>;
++		clock-names = "sys_ck", "ref_ck";
++
++		phys = <&u2port0 PHY_TYPE_USB2>,
++		       <&u3port0 PHY_TYPE_USB3>,
++		       <&u2port1 PHY_TYPE_USB2>;
++
++		status = "disabled";
++	};
++
++	u3phy: usb-phy@1e1d0000 {
++		compatible = "mediatek,mt7621-u3phy",
++			     "mediatek,generic-tphy-v1";
++		reg = <0x1e1d0000 0x700>;
++		#address-cells = <1>;
++		#size-cells = <1>;
++		ranges;
++		status = "disabled";
++
++		u2port0: usb-phy@1e1d0800 {
++			reg = <0x1e1d0800 0x0100>;
++			#phy-cells = <1>;
++			clocks = <&clk48m>;
++			clock-names = "ref";
++		};
++
++		u3port0: usb-phy@1e1d0900 {
++			reg = <0x1e1d0900 0x0100>;
++			#phy-cells = <1>;
++		};
++
++		u2port1: usb-phy@1e1d1000 {
++			reg = <0x1e1d1000 0x0100>;
++			#phy-cells = <1>;
++			clocks = <&clk48m>;
++			clock-names = "ref";
++		};
++	};
++
++	i2c: i2c@1e000900 {
++		compatible = "i2c-gpio";
++
++		status = "disabled";
++
++		i2c-gpio,delay-us = <3>;
++
++		gpios = <&gpio0 3 1>, /* PIN3 as SDA */
++			<&gpio0 4 1>; /* PIN4 as CLK */
++
++		#address-cells = <1>;
++		#size-cells = <0>;
++	};
++};
+diff --git a/arch/mips/mach-mtmips/Kconfig b/arch/mips/mach-mtmips/Kconfig
+index 151b004603..d46be503a2 100644
+--- a/arch/mips/mach-mtmips/Kconfig
++++ b/arch/mips/mach-mtmips/Kconfig
+@@ -9,6 +9,7 @@ config SYS_MALLOC_F_LEN
+ 
+ config SYS_SOC
+ 	default "mt7620" if SOC_MT7620
++	default "mt7621" if SOC_MT7621
+ 	default "mt7628" if SOC_MT7628
+ 
+ config SYS_DCACHE_SIZE
+@@ -18,25 +19,45 @@ config SYS_DCACHE_LINE_SIZE
+ 	default 32
+ 
+ config SYS_ICACHE_SIZE
+-	default 65536
++	default 65536 if SOC_MT7620 || SOC_MT7628
++	default 32768 if SOC_MT7621
+ 
+ config SYS_ICACHE_LINE_SIZE
+ 	default 32
+ 
++config SYS_SCACHE_LINE_SIZE
++	default 32 if SOC_MT7621
++
+ config SYS_TEXT_BASE
+-	default 0x9c000000 if !SPL
+-	default 0x80200000 if SPL
++	default 0x9c000000 if !SPL && !SOC_MT7621
++	default 0x80200000 if SPL || SOC_MT7621
+ 
+ config SPL_TEXT_BASE
+-	default 0x9c000000
++	default 0x9c000000 if !SOC_MT7621
++	default 0x80100000 if SOC_MT7621
++
++config SPL_SIZE_LIMIT
++	default 0x30000 if SOC_MT7621
++
++config TPL_TEXT_BASE
++	default 0xbfc00000 if SOC_MT7621
++
++config TPL_MAX_SIZE
++	default 4096 if SOC_MT7621
+ 
+ config SPL_PAYLOAD
+ 	default "u-boot-lzma.img" if SPL_LZMA
+ 
+ config BUILD_TARGET
+-	default "u-boot-with-spl.bin" if SPL
++	default "u-boot-with-spl.bin" if SPL && !SOC_MT7621
++	default "u-boot-lzma.img" if SOC_MT7621
+ 	default "u-boot.bin"
+ 
++config MAX_MEM_SIZE
++	int
++	default 256 if SOC_MT7620 || SOC_MT7628
++	default 512 if SOC_MT7621
++
+ choice
+ 	prompt "MediaTek MIPS SoC select"
+ 
+@@ -55,6 +76,23 @@ config SOC_MT7620
+ 	help
+ 	  This supports MediaTek MT7620.
+ 
++config SOC_MT7621
++	bool "MT7621"
++	select MIPS_CM
++	select MIPS_L2_CACHE
++	select SYS_CACHE_SHIFT_5
++	select SYS_MIPS_CACHE_INIT_RAM_LOAD
++	select PINCTRL_MT7621
++	select MTK_SERIAL
++	select REGMAP
++	select SYSCON
++	select BINMAN
++	select SUPPORT_TPL
++	select SPL_LOADER_SUPPORT if SPL
++	select SPL_INIT_STACK_WITHOUT_MALLOC_F if SPL
++	help
++	  This supports MediaTek MT7621.
++
+ config SOC_MT7628
+ 	bool "MT7628"
+ 	select SYS_CACHE_SHIFT_5
+@@ -80,6 +118,7 @@ config SOC_MT7628
+ endchoice
+ 
+ source "arch/mips/mach-mtmips/mt7620/Kconfig"
++source "arch/mips/mach-mtmips/mt7621/Kconfig"
+ source "arch/mips/mach-mtmips/mt7628/Kconfig"
+ 
+ endmenu
+diff --git a/arch/mips/mach-mtmips/Makefile b/arch/mips/mach-mtmips/Makefile
+index 4909b47ef2..19f1e07033 100644
+--- a/arch/mips/mach-mtmips/Makefile
++++ b/arch/mips/mach-mtmips/Makefile
+@@ -1,9 +1,13 @@
+ # SPDX-License-Identifier: GPL-2.0+
+ 
+ obj-y += cpu.o
++
++ifneq ($(CONFIG_SOC_MT7621),y)
+ obj-y += ddr_init.o
+ obj-y += ddr_cal.o
+ obj-$(CONFIG_SPL_BUILD) += spl.o
++endif
+ 
+ obj-$(CONFIG_SOC_MT7620) += mt7620/
++obj-$(CONFIG_SOC_MT7621) += mt7621/
+ obj-$(CONFIG_SOC_MT7628) += mt7628/
+diff --git a/arch/mips/mach-mtmips/cpu.c b/arch/mips/mach-mtmips/cpu.c
+index a4b5cff61d..f1e9022738 100644
+--- a/arch/mips/mach-mtmips/cpu.c
++++ b/arch/mips/mach-mtmips/cpu.c
+@@ -16,7 +16,7 @@ DECLARE_GLOBAL_DATA_PTR;
+ 
+ int dram_init(void)
+ {
+-	gd->ram_size = get_ram_size((void *)KSEG1, SZ_256M);
++	gd->ram_size = get_ram_size((void *)KSEG1, CONFIG_MAX_MEM_SIZE << 20);
+ 
+ 	return 0;
+ }
+diff --git a/arch/mips/mach-mtmips/mt7621/Kconfig b/arch/mips/mach-mtmips/mt7621/Kconfig
+new file mode 100644
+index 0000000000..37d512c68f
+--- /dev/null
++++ b/arch/mips/mach-mtmips/mt7621/Kconfig
+@@ -0,0 +1,95 @@
++
++if SOC_MT7621
++
++menu "CPU & DDR configuration"
++
++config MT7621_CPU_FREQ
++	int "CPU Frequency (MHz)"
++	range 400 1200
++	default 880
++
++choice
++	prompt "DRAM Frequency"
++	default MT7621_DRAM_FREQ_1200
++
++config MT7621_DRAM_FREQ_400
++	bool "400MHz"
++
++config MT7621_DRAM_FREQ_800
++	bool "800MHz"
++
++config MT7621_DRAM_FREQ_1066
++	bool "1066MHz"
++
++config MT7621_DRAM_FREQ_1200
++	bool "1200MHz"
++
++endchoice
++
++choice
++	prompt "DDR2 timing parameters"
++	default MT7621_DRAM_DDR2_1024M
++
++config MT7621_DRAM_DDR2_512M
++	bool "64MB"
++
++config MT7621_DRAM_DDR2_1024M
++	bool "128MB"
++
++config MT7621_DRAM_DDR2_512M_W9751G6KB_A02_1066MHZ
++	bool "W9751G6KB_A02 @ 1066MHz (64MB)"
++
++config MT7621_DRAM_DDR2_1024M_W971GG6KB25_800MHZ
++	bool "W971GG6KB25 @ 800MHz (128MB)"
++
++config MT7621_DRAM_DDR2_1024M_W971GG6KB18_1066MHZ
++	bool "W971GG6KB18 @ 1066MHz (128MB)"
++
++endchoice
++
++choice
++	prompt "DDR3 timing parameters"
++	default MT7621_DRAM_DDR3_2048M
++
++config MT7621_DRAM_DDR3_1024M
++	bool "128MB"
++
++config MT7621_DRAM_DDR3_1024M_KGD
++	bool "128MB KGD (MT7621DA)"
++
++config MT7621_DRAM_DDR3_2048M
++	bool "256MB"
++
++config MT7621_DRAM_DDR3_4096M
++	bool "512MB"
++
++endchoice
++
++endmenu
++
++config DEBUG_UART_BOARD_INIT
++	default y
++
++config MT7621_BOOT_FROM_NAND
++	bool "Boot from NAND"
++	help
++	  Select this if u-boot will boot from NAND flash. When booting from
++	  NAND, SPL will be loaded by bootrom directly and no TPL is needed.
++
++choice
++	prompt "Board select"
++
++endchoice
++
++config SYS_CONFIG_NAME
++	string "Board configuration name"
++	default "mt7621" if  BOARD_MT7621_RFB || BOARD_MT7621_NAND_RFB
++
++config SYS_BOARD
++	string "Board name"
++	default "mt7621" if  BOARD_MT7621_RFB || BOARD_MT7621_NAND_RFB
++
++config SYS_VENDOR
++	default "mediatek" if BOARD_MT7621_RFB || BOARD_MT7621_NAND_RFB
++
++endif
+diff --git a/arch/mips/mach-mtmips/mt7621/Makefile b/arch/mips/mach-mtmips/mt7621/Makefile
+new file mode 100644
+index 0000000000..bf1b0bb688
+--- /dev/null
++++ b/arch/mips/mach-mtmips/mt7621/Makefile
+@@ -0,0 +1,14 @@
++# SPDX-License-Identifier: GPL-2.0
++
++obj-y += init.o
++obj-y += serial.o
++
++ifeq ($(CONFIG_SPL_BUILD),y)
++ifeq ($(CONFIG_TPL_BUILD),y)
++obj-y += tpl/
++else
++obj-y += spl/
++endif
++
++obj-y += sram_init.o
++endif
+diff --git a/arch/mips/mach-mtmips/mt7621/init.c b/arch/mips/mach-mtmips/mt7621/init.c
+new file mode 100644
+index 0000000000..d21848ad23
+--- /dev/null
++++ b/arch/mips/mach-mtmips/mt7621/init.c
+@@ -0,0 +1,246 @@
++// SPDX-License-Identifier: GPL-2.0
++/*
++ * Copyright (C) 2022 MediaTek Inc. All rights reserved.
++ *
++ * Author: Weijie Gao <[email protected]>
++ */
++
++#include <clk.h>
++#include <dm.h>
++#include <dm/uclass.h>
++#include <dt-bindings/clock/mt7621-clk.h>
++#include <asm/global_data.h>
++#include <linux/io.h>
++#include <linux/bitfield.h>
++#include "mt7621.h"
++
++DECLARE_GLOBAL_DATA_PTR;
++
++static const char *const boot_mode[(CHIP_MODE_M >> CHIP_MODE_S) + 1] = {
++	[1] = "NAND 2K+64",
++	[2] = "SPI-NOR 3-Byte Addr",
++	[3] = "SPI-NOR 4-Byte Addr",
++	[10] = "NAND 2K+128",
++	[11] = "NAND 4K+128",
++	[12] = "NAND 4K+256",
++};
++
++int print_cpuinfo(void)
++{
++	void __iomem *sysc = ioremap_nocache(SYSCTL_BASE, SYSCTL_SIZE);
++	u32 val, ver, eco, pkg, core, dram, chipmode;
++	u32 cpu_clk, ddr_clk, bus_clk, xtal_clk;
++	struct udevice *clkdev;
++	const char *bootdev;
++	struct clk clk;
++	int ret;
++
++	val = readl(sysc + SYSCTL_CHIP_REV_ID_REG);
++	ver = FIELD_GET(VER_ID_M, val);
++	eco = FIELD_GET(ECO_ID_M, val);
++	pkg = FIELD_GET(PKG_ID, val);
++	core = FIELD_GET(CPU_ID, val);
++
++	val = readl(sysc + SYSCTL_SYSCFG0_REG);
++	dram = FIELD_GET(DRAM_TYPE, val);
++	chipmode = FIELD_GET(CHIP_MODE_M, val);
++
++	bootdev = boot_mode[chipmode];
++	if (!bootdev)
++		bootdev = "Unsupported boot mode";
++
++	printf("CPU:   MediaTek MT7621%c ver %u, eco %u\n",
++	       core ? (pkg ? 'A' : 'N') : 'S', ver, eco);
++
++	printf("Boot:  DDR%u, %s\n", dram ? 2 : 3, bootdev);
++
++	ret = uclass_get_device_by_driver(UCLASS_CLK, DM_DRIVER_GET(mt7621_clk),
++					  &clkdev);
++	if (ret)
++		return ret;
++
++	clk.dev = clkdev;
++
++	clk.id = MT7621_CLK_CPU;
++	cpu_clk = clk_get_rate(&clk);
++
++	clk.id = MT7621_CLK_BUS;
++	bus_clk = clk_get_rate(&clk);
++
++	clk.id = MT7621_CLK_DDR;
++	ddr_clk = clk_get_rate(&clk);
++
++	clk.id = MT7621_CLK_XTAL;
++	xtal_clk = clk_get_rate(&clk);
++
++	/* Set final timer frequency */
++	if (cpu_clk)
++		gd->arch.timer_freq = cpu_clk / 2;
++
++	printf("Clock: CPU: %uMHz, DDR: %uMT/s, Bus: %uMHz, XTAL: %uMHz\n",
++	       cpu_clk / 1000000, ddr_clk / 500000, bus_clk / 1000000,
++	       xtal_clk / 1000000);
++
++	return 0;
++}
++
++unsigned long get_xtal_mhz(void)
++{
++	void __iomem *sysc = ioremap_nocache(SYSCTL_BASE, SYSCTL_SIZE);
++	u32 bs, xtal_sel;
++
++	bs = readl(sysc + SYSCTL_SYSCFG0_REG);
++	xtal_sel = FIELD_GET(XTAL_MODE_SEL_M, bs);
++
++	if (xtal_sel <= 2)
++		return 20;
++	else if (xtal_sel <= 5)
++		return 40;
++	else
++		return 25;
++}
++
++static void xhci_config_40mhz(void __iomem *usbh)
++{
++	writel(FIELD_PREP(SSUSB_MAC3_SYS_CK_GATE_MASK_TIME_M, 0x20) |
++	       FIELD_PREP(SSUSB_MAC2_SYS_CK_GATE_MASK_TIME_M, 0x20) |
++	       FIELD_PREP(SSUSB_MAC3_SYS_CK_GATE_MODE_M, 2) |
++	       FIELD_PREP(SSUSB_MAC2_SYS_CK_GATE_MODE_M, 2) | 0x10,
++	       usbh + SSUSB_MAC_CK_CTRL_REG);
++
++	writel(FIELD_PREP(SSUSB_PLL_PREDIV_PE1D_M, 2) |
++	       FIELD_PREP(SSUSB_PLL_PREDIV_U3_M, 1) |
++	       FIELD_PREP(SSUSB_PLL_FBKDI_M, 4),
++	       usbh + DA_SSUSB_U3PHYA_10_REG);
++
++	writel(FIELD_PREP(SSUSB_PLL_FBKDIV_PE2H_M, 0x18) |
++	       FIELD_PREP(SSUSB_PLL_FBKDIV_PE1D_M, 0x18) |
++	       FIELD_PREP(SSUSB_PLL_FBKDIV_PE1H_M, 0x18) |
++	       FIELD_PREP(SSUSB_PLL_FBKDIV_U3_M, 0x1e),
++	       usbh + DA_SSUSB_PLL_FBKDIV_REG);
++
++	writel(FIELD_PREP(SSUSB_PLL_PCW_NCPO_U3_M, 0x1e400000),
++	       usbh + DA_SSUSB_PLL_PCW_NCPO_REG);
++
++	writel(FIELD_PREP(SSUSB_PLL_SSC_DELTA1_PE1H_M, 0x25) |
++	       FIELD_PREP(SSUSB_PLL_SSC_DELTA1_U3_M, 0x73),
++	       usbh + DA_SSUSB_PLL_SSC_DELTA1_REG);
++
++	writel(FIELD_PREP(SSUSB_PLL_SSC_DELTA_U3_M, 0x71) |
++	       FIELD_PREP(SSUSB_PLL_SSC_DELTA1_PE2D_M, 0x4a),
++	       usbh + DA_SSUSB_U3PHYA_21_REG);
++
++	writel(FIELD_PREP(SSUSB_PLL_SSC_PRD_M, 0x140),
++	       usbh + SSUSB_U3PHYA_9_REG);
++
++	writel(FIELD_PREP(SSUSB_SYSPLL_PCW_NCPO_M, 0x11c00000),
++	       usbh + SSUSB_U3PHYA_3_REG);
++
++	writel(FIELD_PREP(SSUSB_PCIE_CLKDRV_AMP_M, 4) |
++	       FIELD_PREP(SSUSB_SYSPLL_FBSEL_M, 1) |
++	       FIELD_PREP(SSUSB_SYSPLL_PREDIV_M, 1),
++	       usbh + SSUSB_U3PHYA_1_REG);
++
++	writel(FIELD_PREP(SSUSB_SYSPLL_FBDIV_M, 0x12) |
++	       SSUSB_SYSPLL_VCO_DIV_SEL | SSUSB_SYSPLL_FPEN |
++	       SSUSB_SYSPLL_MONCK_EN | SSUSB_SYSPLL_VOD_EN,
++	       usbh + SSUSB_U3PHYA_2_REG);
++
++	writel(SSUSB_EQ_CURSEL | FIELD_PREP(SSUSB_RX_DAC_MUX_M, 8) |
++	       FIELD_PREP(SSUSB_PCIE_SIGDET_VTH_M, 1) |
++	       FIELD_PREP(SSUSB_PCIE_SIGDET_LPF_M, 1),
++	       usbh + SSUSB_U3PHYA_11_REG);
++
++	writel(FIELD_PREP(SSUSB_RING_OSC_CNTEND_M, 0x1ff) |
++	       FIELD_PREP(SSUSB_XTAL_OSC_CNTEND_M, 0x7f) |
++	       SSUSB_RING_BYPASS_DET,
++	       usbh + SSUSB_B2_ROSC_0_REG);
++
++	writel(FIELD_PREP(SSUSB_RING_OSC_FRC_RECAL_M, 3) |
++	       SSUSB_RING_OSC_FRC_SEL,
++	       usbh + SSUSB_B2_ROSC_1_REG);
++}
++
++static void xhci_config_25mhz(void __iomem *usbh)
++{
++	writel(FIELD_PREP(SSUSB_MAC3_SYS_CK_GATE_MASK_TIME_M, 0x20) |
++	       FIELD_PREP(SSUSB_MAC2_SYS_CK_GATE_MASK_TIME_M, 0x20) |
++	       FIELD_PREP(SSUSB_MAC3_SYS_CK_GATE_MODE_M, 2) |
++	       FIELD_PREP(SSUSB_MAC2_SYS_CK_GATE_MODE_M, 2) | 0x10,
++	       usbh + SSUSB_MAC_CK_CTRL_REG);
++
++	writel(FIELD_PREP(SSUSB_PLL_PREDIV_PE1D_M, 2) |
++	       FIELD_PREP(SSUSB_PLL_FBKDI_M, 4),
++	       usbh + DA_SSUSB_U3PHYA_10_REG);
++
++	writel(FIELD_PREP(SSUSB_PLL_FBKDIV_PE2H_M, 0x18) |
++	       FIELD_PREP(SSUSB_PLL_FBKDIV_PE1D_M, 0x18) |
++	       FIELD_PREP(SSUSB_PLL_FBKDIV_PE1H_M, 0x18) |
++	       FIELD_PREP(SSUSB_PLL_FBKDIV_U3_M, 0x19),
++	       usbh + DA_SSUSB_PLL_FBKDIV_REG);
++
++	writel(FIELD_PREP(SSUSB_PLL_PCW_NCPO_U3_M, 0x18000000),
++	       usbh + DA_SSUSB_PLL_PCW_NCPO_REG);
++
++	writel(FIELD_PREP(SSUSB_PLL_SSC_DELTA1_PE1H_M, 0x25) |
++	       FIELD_PREP(SSUSB_PLL_SSC_DELTA1_U3_M, 0x4a),
++	       usbh + DA_SSUSB_PLL_SSC_DELTA1_REG);
++
++	writel(FIELD_PREP(SSUSB_PLL_SSC_DELTA_U3_M, 0x48) |
++	       FIELD_PREP(SSUSB_PLL_SSC_DELTA1_PE2D_M, 0x4a),
++	       usbh + DA_SSUSB_U3PHYA_21_REG);
++
++	writel(FIELD_PREP(SSUSB_PLL_SSC_PRD_M, 0x190),
++	       usbh + SSUSB_U3PHYA_9_REG);
++
++	writel(FIELD_PREP(SSUSB_SYSPLL_PCW_NCPO_M, 0xe000000),
++	       usbh + SSUSB_U3PHYA_3_REG);
++
++	writel(FIELD_PREP(SSUSB_PCIE_CLKDRV_AMP_M, 4) |
++	       FIELD_PREP(SSUSB_SYSPLL_FBSEL_M, 1),
++	       usbh + SSUSB_U3PHYA_1_REG);
++
++	writel(FIELD_PREP(SSUSB_SYSPLL_FBDIV_M, 0xf) |
++	       SSUSB_SYSPLL_VCO_DIV_SEL | SSUSB_SYSPLL_FPEN |
++	       SSUSB_SYSPLL_MONCK_EN | SSUSB_SYSPLL_VOD_EN,
++	       usbh + SSUSB_U3PHYA_2_REG);
++
++	writel(SSUSB_EQ_CURSEL | FIELD_PREP(SSUSB_RX_DAC_MUX_M, 8) |
++	       FIELD_PREP(SSUSB_PCIE_SIGDET_VTH_M, 1) |
++	       FIELD_PREP(SSUSB_PCIE_SIGDET_LPF_M, 1),
++	       usbh + SSUSB_U3PHYA_11_REG);
++
++	writel(FIELD_PREP(SSUSB_RING_OSC_CNTEND_M, 0x1ff) |
++	       FIELD_PREP(SSUSB_XTAL_OSC_CNTEND_M, 0x7f) |
++	       SSUSB_RING_BYPASS_DET,
++	       usbh + SSUSB_B2_ROSC_0_REG);
++
++	writel(FIELD_PREP(SSUSB_RING_OSC_FRC_RECAL_M, 3) |
++	       SSUSB_RING_OSC_FRC_SEL,
++	       usbh + SSUSB_B2_ROSC_1_REG);
++}
++
++void lowlevel_init(void)
++{
++	void __iomem *usbh = ioremap_nocache(SSUSB_BASE, SSUSB_SIZE);
++	u32 xtal = get_xtal_mhz();
++
++	/* Setup USB xHCI */
++	if (xtal == 40)
++		xhci_config_40mhz(usbh);
++	else if (xtal == 25)
++		xhci_config_25mhz(usbh);
++}
++
++ulong notrace get_tbclk(void)
++{
++	return gd->arch.timer_freq;
++}
++
++void _machine_restart(void)
++{
++	void __iomem *sysc = ioremap_nocache(SYSCTL_BASE, SYSCTL_SIZE);
++
++	while (1)
++		writel(SYS_RST, sysc + SYSCTL_RSTCTL_REG);
++}
+diff --git a/arch/mips/mach-mtmips/mt7621/mt7621.h b/arch/mips/mach-mtmips/mt7621/mt7621.h
+new file mode 100644
+index 0000000000..916cc993b4
+--- /dev/null
++++ b/arch/mips/mach-mtmips/mt7621/mt7621.h
+@@ -0,0 +1,229 @@
++/* SPDX-License-Identifier: GPL-2.0 */
++/*
++ * Copyright (C) 2022 MediaTek Inc. All rights reserved.
++ *
++ * Author: Weijie Gao <[email protected]>
++ */
++
++#ifndef _MT7621_H_
++#define _MT7621_H_
++
++#define SYSCTL_BASE				0x1e000000
++#define SYSCTL_SIZE				0x100
++#define TIMER_BASE				0x1e000100
++#define TIMER_SIZE				0x100
++#define RBUS_BASE				0x1e000400
++#define RBUS_SIZE				0x100
++#define GPIO_BASE				0x1e000600
++#define GPIO_SIZE				0x100
++#define DMA_CFG_ARB_BASE			0x1e000800
++#define DMA_CFG_ARB_SIZE			0x100
++#define SPI_BASE				0x1e000b00
++#define SPI_SIZE				0x100
++#define UART1_BASE				0x1e000c00
++#define UART1_SIZE				0x100
++#define UART2_BASE				0x1e000d00
++#define UART2_SIZE				0x100
++#define UART3_BASE				0x1e000e00
++#define UART3_SIZE				0x100
++#define NFI_BASE				0x1e003000
++#define NFI_SIZE				0x800
++#define NFI_ECC_BASE				0x1e003800
++#define NFI_ECC_SIZE				0x800
++#define DRAMC_BASE				0x1e005000
++#define DRAMC_SIZE				0x1000
++#define FE_BASE					0x1e100000
++#define FE_SIZE					0xe000
++#define GMAC_BASE				0x1e110000
++#define GMAC_SIZE				0x8000
++#define SSUSB_BASE				0x1e1c0000
++#define SSUSB_SIZE				0x40000
++
++ /* GIC Base Address */
++#define MIPS_GIC_BASE				0x1fbc0000
++
++ /* CPC Base Address */
++#define MIPS_CPC_BASE				0x1fbf0000
++
++ /* Flash Memory-mapped Base Address */
++#define FLASH_MMAP_BASE				0x1fc00000
++#define TPL_INFO_OFFSET				0x40
++#define TPL_INFO_MAGIC				0x31323637 /* Magic "7621" */
++
++/* SRAM */
++#define FE_SRAM_BASE1				0x8000
++#define FE_SRAM_BASE2				0xa000
++
++/* SYSCTL_BASE */
++#define SYSCTL_CHIP_REV_ID_REG			0x0c
++#define CPU_ID					0x20000
++#define PKG_ID					0x10000
++#define VER_ID_S				8
++#define VER_ID_M				0xf00
++#define ECO_ID_S				0
++#define ECO_ID_M				0x0f
++
++#define SYSCTL_SYSCFG0_REG			0x10
++#define XTAL_MODE_SEL_S				6
++#define XTAL_MODE_SEL_M				0x1c0
++#define DRAM_TYPE				0x10
++#define CHIP_MODE_S				0
++#define CHIP_MODE_M				0x0f
++
++#define BOOT_SRAM_BASE_REG			0x20
++
++#define SYSCTL_CLKCFG0_REG			0x2c
++#define CPU_CLK_SEL_S				30
++#define CPU_CLK_SEL_M				0xc0000000
++#define MPLL_CFG_SEL_S				23
++#define MPLL_CFG_SEL_M				0x800000
++
++#define SYSCTL_RSTCTL_REG			0x34
++#define MCM_RST					0x04
++#define SYS_RST					0x01
++
++#define SYSCTL_CUR_CLK_STS_REG			0x44
++#define CUR_CPU_FDIV_S				8
++#define CUR_CPU_FDIV_M				0x1f00
++#define CUR_CPU_FFRAC_S				0
++#define CUR_CPU_FFRAC_M				0x1f
++
++#define SYSCTL_GPIOMODE_REG			0x60
++#define UART2_MODE_S				5
++#define UART2_MODE_M				0x60
++#define UART3_MODE_S				3
++#define UART3_MODE_M				0x18
++#define UART1_MODE				0x02
++
++/* RBUS_BASE */
++#define RBUS_DYN_CFG0_REG			0x0010
++#define CPU_FDIV_S				8
++#define CPU_FDIV_M				0x1f00
++#define CPU_FFRAC_S				0
++#define CPU_FFRAC_M				0x1f
++
++/* DMA_CFG_ARB_BASE */
++#define DMA_ROUTE_REG				0x000c
++
++/* SPI_BASE */
++#define SPI_SPACE_REG				0x003c
++#define FS_SLAVE_SEL_S				12
++#define FS_SLAVE_SEL_M				0x70000
++#define FS_CLK_SEL_S				0
++#define FS_CLK_SEL_M				0xfff
++
++/* FE_BASE */
++#define FE_RST_GLO_REG				0x0004
++#define FE_PSE_RAM				0x04
++#define FE_PSE_MEM_EN				0x02
++#define FE_PSE_RESET				0x01
++
++/* SSUSB_BASE */
++#define SSUSB_MAC_CK_CTRL_REG			0x10784
++#define SSUSB_MAC3_SYS_CK_GATE_MASK_TIME_S	16
++#define SSUSB_MAC3_SYS_CK_GATE_MASK_TIME_M	0xff0000
++#define SSUSB_MAC2_SYS_CK_GATE_MASK_TIME_S	8
++#define SSUSB_MAC2_SYS_CK_GATE_MASK_TIME_M	0xff00
++#define SSUSB_MAC3_SYS_CK_GATE_MODE_S		2
++#define SSUSB_MAC3_SYS_CK_GATE_MODE_M		0x0c
++#define SSUSB_MAC2_SYS_CK_GATE_MODE_S		0
++#define SSUSB_MAC2_SYS_CK_GATE_MODE_M		0x03
++
++#define SSUSB_B2_ROSC_0_REG			0x10a40
++#define SSUSB_RING_OSC_CNTEND_S			23
++#define SSUSB_RING_OSC_CNTEND_M			0xff800000
++#define SSUSB_XTAL_OSC_CNTEND_S			16
++#define SSUSB_XTAL_OSC_CNTEND_M			0x7f0000
++#define SSUSB_RING_BYPASS_DET			0x01
++
++#define SSUSB_B2_ROSC_1_REG			0x10a44
++#define SSUSB_RING_OSC_FRC_RECAL_S		17
++#define SSUSB_RING_OSC_FRC_RECAL_M		0x60000
++#define SSUSB_RING_OSC_FRC_SEL			0x01
++
++#define SSUSB_U3PHYA_1_REG			0x10b04
++#define SSUSB_PCIE_CLKDRV_AMP_S			27
++#define SSUSB_PCIE_CLKDRV_AMP_M			0x38000000
++#define SSUSB_SYSPLL_FBSEL_S			2
++#define SSUSB_SYSPLL_FBSEL_M			0x0c
++#define SSUSB_SYSPLL_PREDIV_S			0
++#define SSUSB_SYSPLL_PREDIV_M			0x03
++
++#define SSUSB_U3PHYA_2_REG			0x10b08
++#define SSUSB_SYSPLL_FBDIV_S			24
++#define SSUSB_SYSPLL_FBDIV_M			0x7f000000
++#define SSUSB_SYSPLL_VCO_DIV_SEL		0x200000
++#define SSUSB_SYSPLL_FPEN			0x2000
++#define SSUSB_SYSPLL_MONCK_EN			0x1000
++#define SSUSB_SYSPLL_VOD_EN			0x200
++
++#define SSUSB_U3PHYA_3_REG			0x10b10
++#define SSUSB_SYSPLL_PCW_NCPO_S			1
++#define SSUSB_SYSPLL_PCW_NCPO_M			0xfffffffe
++
++#define SSUSB_U3PHYA_9_REG			0x10b24
++#define SSUSB_PLL_SSC_PRD_S			0
++#define SSUSB_PLL_SSC_PRD_M			0xffff
++
++#define SSUSB_U3PHYA_11_REG			0x10b2c
++#define SSUSB_EQ_CURSEL				0x1000000
++#define SSUSB_RX_DAC_MUX_S			19
++#define SSUSB_RX_DAC_MUX_M			0xf80000
++#define SSUSB_PCIE_SIGDET_VTH_S			5
++#define SSUSB_PCIE_SIGDET_VTH_M			0x60
++#define SSUSB_PCIE_SIGDET_LPF_S			3
++#define SSUSB_PCIE_SIGDET_LPF_M			0x18
++
++#define DA_SSUSB_PLL_FBKDIV_REG			0x10c1c
++#define SSUSB_PLL_FBKDIV_PE2H_S			24
++#define SSUSB_PLL_FBKDIV_PE2H_M			0x7f000000
++#define SSUSB_PLL_FBKDIV_PE1D_S			16
++#define SSUSB_PLL_FBKDIV_PE1D_M			0x7f0000
++#define SSUSB_PLL_FBKDIV_PE1H_S			8
++#define SSUSB_PLL_FBKDIV_PE1H_M			0x7f00
++#define SSUSB_PLL_FBKDIV_U3_S			0
++#define SSUSB_PLL_FBKDIV_U3_M			0x7f
++
++#define DA_SSUSB_U3PHYA_10_REG			0x10c20
++#define SSUSB_PLL_PREDIV_PE1D_S			18
++#define SSUSB_PLL_PREDIV_PE1D_M			0xc0000
++#define SSUSB_PLL_PREDIV_U3_S			8
++#define SSUSB_PLL_PREDIV_U3_M			0x300
++#define SSUSB_PLL_FBKDI_S			0
++#define SSUSB_PLL_FBKDI_M			0x07
++
++#define DA_SSUSB_PLL_PCW_NCPO_REG		0x10c24
++#define SSUSB_PLL_PCW_NCPO_U3_S			0
++#define SSUSB_PLL_PCW_NCPO_U3_M			0x7fffffff
++
++#define DA_SSUSB_PLL_SSC_DELTA1_REG		0x10c38
++#define SSUSB_PLL_SSC_DELTA1_PE1H_S		16
++#define SSUSB_PLL_SSC_DELTA1_PE1H_M		0xffff0000
++#define SSUSB_PLL_SSC_DELTA1_U3_S		0
++#define SSUSB_PLL_SSC_DELTA1_U3_M		0xffff
++
++#define DA_SSUSB_U3PHYA_21_REG			0x10c40
++#define SSUSB_PLL_SSC_DELTA_U3_S		16
++#define SSUSB_PLL_SSC_DELTA_U3_M		0xffff0000
++#define SSUSB_PLL_SSC_DELTA1_PE2D_S		0
++#define SSUSB_PLL_SSC_DELTA1_PE2D_M		0xffff
++
++/* MT7621 specific CM values */
++
++/* GCR_REGx_BASE */
++#define GCR_REG0_BASE_VALUE			0x1c000000
++#define GCR_REG1_BASE_VALUE			0x60000000
++#define GCR_REG2_BASE_VALUE			0x1c000000
++#define GCR_REG3_BASE_VALUE			0x1c000000
++
++/* GCR_REGx_MASK */
++#define GCR_REG0_MASK_VALUE			0x0000fc00 /* 64M Bus */
++#define GCR_REG1_MASK_VALUE			0x0000f000 /* 256M PCI Mem */
++#define GCR_REG2_MASK_VALUE			0x0000fc00 /* unused */
++#define GCR_REG3_MASK_VALUE			0x0000fc00 /* unused */
++
++#ifndef __ASSEMBLY__
++unsigned long get_xtal_mhz(void);
++#endif
++
++#endif /* _MT7621_H_ */
+diff --git a/arch/mips/mach-mtmips/mt7621/serial.c b/arch/mips/mach-mtmips/mt7621/serial.c
+new file mode 100644
+index 0000000000..0ccc71dc75
+--- /dev/null
++++ b/arch/mips/mach-mtmips/mt7621/serial.c
+@@ -0,0 +1,23 @@
++// SPDX-License-Identifier: GPL-2.0
++/*
++ * Copyright (C) 2022 MediaTek Inc. All rights reserved.
++ *
++ * Author: Weijie Gao <[email protected]>
++ */
++
++#include <asm/io.h>
++#include <asm/addrspace.h>
++#include "mt7621.h"
++
++void board_debug_uart_init(void)
++{
++	void __iomem *base = ioremap_nocache(SYSCTL_BASE, SYSCTL_SIZE);
++
++#if CONFIG_DEBUG_UART_BASE == 0xbe000c00 /* KSEG1ADDR(UART1_BASE) */
++	clrbits_32(base + SYSCTL_GPIOMODE_REG, UART1_MODE);
++#elif CONFIG_DEBUG_UART_BASE == 0xbe000d00 /* KSEG1ADDR(UART2_BASE) */
++	clrbits_32(base + SYSCTL_GPIOMODE_REG, UART2_MODE_M);
++#elif CONFIG_DEBUG_UART_BASE == 0xbe000e00 /* KSEG1ADDR(UART3_BASE) */
++	clrbits_32(base + SYSCTL_GPIOMODE_REG, UART3_MODE_M);
++#endif
++}
+diff --git a/arch/mips/mach-mtmips/mt7621/spl/Makefile b/arch/mips/mach-mtmips/mt7621/spl/Makefile
+new file mode 100644
+index 0000000000..ebe54e79b9
+--- /dev/null
++++ b/arch/mips/mach-mtmips/mt7621/spl/Makefile
+@@ -0,0 +1,9 @@
++
++extra-y += start.o
++
++obj-y += spl.o
++obj-y += cps.o
++obj-y += dram.o
++obj-y += serial.o
++obj-y += launch.o
++obj-y += launch_ll.o
+diff --git a/arch/mips/mach-mtmips/mt7621/spl/cps.c b/arch/mips/mach-mtmips/mt7621/spl/cps.c
+new file mode 100644
+index 0000000000..779e646c12
+--- /dev/null
++++ b/arch/mips/mach-mtmips/mt7621/spl/cps.c
+@@ -0,0 +1,153 @@
++// SPDX-License-Identifier: GPL-2.0
++/*
++ * Copyright (C) 2022 MediaTek Inc. All rights reserved.
++ *
++ * Author: Weijie Gao <[email protected]>
++ */
++
++#include <asm/io.h>
++#include <asm/addrspace.h>
++#include <asm/mipsregs.h>
++#include <asm/cm.h>
++#include <linux/bitfield.h>
++#include "../mt7621.h"
++
++/* GIC Shared Register Bases */
++#define GIC_SH_POL_BASE		0x100
++#define GIC_SH_TRIG_BASE	0x180
++#define GIC_SH_RMASK_BASE	0x300
++#define GIC_SH_SMASK_BASE	0x380
++#define GIC_SH_MASK_BASE	0x400
++#define GIC_SH_PEND_BASE	0x480
++#define GIC_SH_MAP_PIN_BASE	0x500
++#define GIC_SH_MAP_VPE_BASE	0x2000
++
++/* GIC Registers */
++#define GIC_SH_POL31_0		(GIC_SH_POL_BASE + 0x00)
++#define GIC_SH_POL63_32		(GIC_SH_POL_BASE + 0x04)
++
++#define GIC_SH_TRIG31_0		(GIC_SH_TRIG_BASE + 0x00)
++#define GIC_SH_TRIG63_32	(GIC_SH_TRIG_BASE + 0x04)
++
++#define GIC_SH_RMASK31_0	(GIC_SH_RMASK_BASE + 0x00)
++#define GIC_SH_RMASK63_32	(GIC_SH_RMASK_BASE + 0x04)
++
++#define GIC_SH_SMASK31_0	(GIC_SH_SMASK_BASE + 0x00)
++#define GIC_SH_SMASK63_32	(GIC_SH_SMASK_BASE + 0x04)
++
++#define GIC_SH_MAP_PIN(n)	(GIC_SH_MAP_PIN_BASE + (n) * 4)
++
++#define GIC_SH_MAP_VPE(n, v)	(GIC_SH_MAP_VPE_BASE + (n) * 0x20 + ((v) / 32) * 4)
++#define GIC_SH_MAP_VPE31_0(n)	GIC_SH_MAP_VPE(n, 0)
++
++/* GIC_SH_MAP_PIN fields */
++#define GIC_MAP_TO_PIN		BIT(31)
++#define GIC_MAP_TO_NMI		BIT(30)
++#define GIC_MAP			GENMASK(5, 0)
++#define GIC_MAP_SHIFT		0
++
++static void cm_init(void __iomem *cm_base)
++{
++	u32 gcrcfg, num_cores;
++
++	gcrcfg = readl(cm_base + GCR_CONFIG);
++	num_cores = FIELD_GET(GCR_CONFIG_PCORES, gcrcfg) + 1;
++
++	writel((1 << num_cores) - 1, cm_base + GCR_ACCESS);
++
++	writel(GCR_REG0_BASE_VALUE, cm_base + GCR_REG0_BASE);
++	writel(GCR_REG1_BASE_VALUE, cm_base + GCR_REG1_BASE);
++	writel(GCR_REG2_BASE_VALUE, cm_base + GCR_REG2_BASE);
++	writel(GCR_REG3_BASE_VALUE, cm_base + GCR_REG3_BASE);
++
++	clrsetbits_32(cm_base + GCR_REG0_MASK,
++		      GCR_REGn_MASK_ADDRMASK | GCR_REGn_MASK_CMTGT,
++		      FIELD_PREP(GCR_REGn_MASK_ADDRMASK, GCR_REG0_MASK_VALUE) |
++		      GCR_REGn_MASK_CMTGT_IOCU0);
++
++	clrsetbits_32(cm_base + GCR_REG1_MASK,
++		      GCR_REGn_MASK_ADDRMASK | GCR_REGn_MASK_CMTGT,
++		      FIELD_PREP(GCR_REGn_MASK_ADDRMASK, GCR_REG1_MASK_VALUE) |
++		      GCR_REGn_MASK_CMTGT_IOCU0);
++
++	clrsetbits_32(cm_base + GCR_REG2_MASK,
++		      GCR_REGn_MASK_ADDRMASK | GCR_REGn_MASK_CMTGT,
++		      FIELD_PREP(GCR_REGn_MASK_ADDRMASK, GCR_REG2_MASK_VALUE) |
++		      GCR_REGn_MASK_CMTGT_IOCU0);
++
++	clrsetbits_32(cm_base + GCR_REG3_MASK,
++		      GCR_REGn_MASK_ADDRMASK | GCR_REGn_MASK_CMTGT,
++		      FIELD_PREP(GCR_REGn_MASK_ADDRMASK, GCR_REG3_MASK_VALUE) |
++		      GCR_REGn_MASK_CMTGT_IOCU0);
++
++	clrbits_32(cm_base + GCR_BASE, CM_DEFAULT_TARGET_MASK);
++	setbits_32(cm_base + GCR_CONTROL, GCR_CONTROL_SYNCCTL);
++}
++
++static void gic_init(void)
++{
++	void __iomem *gic_base = (void *)KSEG1ADDR(MIPS_GIC_BASE);
++	int i;
++
++	/* Interrupt 0..5: Level Trigger, Active High */
++	writel(0, gic_base + GIC_SH_TRIG31_0);
++	writel(0x3f, gic_base + GIC_SH_RMASK31_0);
++	writel(0x3f, gic_base + GIC_SH_POL31_0);
++	writel(0x3f, gic_base + GIC_SH_SMASK31_0);
++
++	/* Interrupt 56..63: Edge Trigger, Rising Edge */
++	/* Hardcoded to set up the last 8 external interrupts for IPI. */
++	writel(0xff000000, gic_base + GIC_SH_TRIG63_32);
++	writel(0xff000000, gic_base + GIC_SH_RMASK63_32);
++	writel(0xff000000, gic_base + GIC_SH_POL63_32);
++	writel(0xff000000, gic_base + GIC_SH_SMASK63_32);
++
++	/* Map interrupt source to particular hardware interrupt pin */
++	/* source {0,1,2,3,4,5} -> pin {0,0,4,3,0,5} */
++	writel(GIC_MAP_TO_PIN | 0, gic_base + GIC_SH_MAP_PIN(0));
++	writel(GIC_MAP_TO_PIN | 0, gic_base + GIC_SH_MAP_PIN(1));
++	writel(GIC_MAP_TO_PIN | 4, gic_base + GIC_SH_MAP_PIN(2));
++	writel(GIC_MAP_TO_PIN | 3, gic_base + GIC_SH_MAP_PIN(3));
++	writel(GIC_MAP_TO_PIN | 0, gic_base + GIC_SH_MAP_PIN(4));
++	writel(GIC_MAP_TO_PIN | 5, gic_base + GIC_SH_MAP_PIN(5));
++
++	/* source 56~59 -> pin 1, 60~63 -> pin 2 */
++	writel(GIC_MAP_TO_PIN | 1, gic_base + GIC_SH_MAP_PIN(56));
++	writel(GIC_MAP_TO_PIN | 1, gic_base + GIC_SH_MAP_PIN(57));
++	writel(GIC_MAP_TO_PIN | 1, gic_base + GIC_SH_MAP_PIN(58));
++	writel(GIC_MAP_TO_PIN | 1, gic_base + GIC_SH_MAP_PIN(59));
++	writel(GIC_MAP_TO_PIN | 2, gic_base + GIC_SH_MAP_PIN(60));
++	writel(GIC_MAP_TO_PIN | 2, gic_base + GIC_SH_MAP_PIN(61));
++	writel(GIC_MAP_TO_PIN | 2, gic_base + GIC_SH_MAP_PIN(62));
++	writel(GIC_MAP_TO_PIN | 2, gic_base + GIC_SH_MAP_PIN(63));
++
++	/* Interrupt map to VPE (bit mask) */
++	for (i = 0; i < 32; i++)
++		writel(BIT(0), gic_base + GIC_SH_MAP_VPE31_0(i));
++
++	/*
++	 * Direct GIC_int 56..63 to vpe 0..3
++	 * MIPS Linux convention that last 16 interrupts implemented be set
++	 * aside for IPI signaling.
++	 * The actual interrupts are tied low and software sends interrupts
++	 * via GIC_SH_WEDGE writes.
++	 */
++	for (i = 0; i < 4; i++) {
++		writel(BIT(i), gic_base + GIC_SH_MAP_VPE31_0(i + 56));
++		writel(BIT(i), gic_base + GIC_SH_MAP_VPE31_0(i + 60));
++	}
++}
++
++void mt7621_cps_init(void)
++{
++	void __iomem *cm_base = (void *)KSEG1ADDR(CONFIG_MIPS_CM_BASE);
++
++	/* Enable GIC */
++	writel(MIPS_GIC_BASE | GCR_GIC_EN, cm_base + GCR_GIC_BASE);
++
++	/* Enable CPC */
++	writel(MIPS_CPC_BASE | GCR_CPC_EN, cm_base + GCR_CPC_BASE);
++
++	gic_init();
++	cm_init(cm_base);
++}
+diff --git a/arch/mips/mach-mtmips/mt7621/spl/dram.c b/arch/mips/mach-mtmips/mt7621/spl/dram.c
+new file mode 100644
+index 0000000000..100adfb93a
+--- /dev/null
++++ b/arch/mips/mach-mtmips/mt7621/spl/dram.c
+@@ -0,0 +1,153 @@
++// SPDX-License-Identifier: GPL-2.0
++/*
++ * Copyright (C) 2022 MediaTek Inc. All rights reserved.
++ *
++ * Author: Weijie Gao <[email protected]>
++ */
++
++#include <vsprintf.h>
++#include <asm/io.h>
++#include <asm/sections.h>
++#include <asm/byteorder.h>
++#include <asm/addrspace.h>
++#include <linux/string.h>
++#include "../mt7621.h"
++#include "dram.h"
++
++static const u32 ddr2_act[DDR_PARAM_SIZE] = {
++#if defined(CONFIG_MT7621_DRAM_DDR2_512M)
++	0xAA00AA00, 0xAA00AA00, 0x00000007, 0x22174441,
++	0x00000000, 0xF0748661, 0x40001273, 0x9F0A0481,
++	0x0304692F, 0x15602842, 0x00008888, 0x88888888,
++	0x00000000, 0x00000000, 0x00000000, 0x07100000,
++	0x00001B63, 0x00002000, 0x00004000, 0x00006000,
++	0x00000000, 0x00000000, 0x00000000, 0x00000000,
++#elif defined(CONFIG_MT7621_DRAM_DDR2_512M_W9751G6KB_A02_1066MHZ)
++	0xAA00AA00, 0xAA00AA00, 0x00000007, 0x33484584,
++	0x00000000, 0xF07486A1, 0x50001273, 0x9F010481,
++	0x0304693F, 0x15602842, 0x00008888, 0x88888888,
++	0x00000000, 0x00000000, 0x00000010, 0x07100000,
++	0x00001F73, 0x00002000, 0x00004000, 0x00006000,
++	0x00000000, 0x00000000, 0x00000000, 0x00000000,
++#elif defined(CONFIG_MT7621_DRAM_DDR2_1024M_W971GG6KB25_800MHZ)
++	0xAA00AA00, 0xAA00AA00, 0x00000007, 0x22174430,
++	0x01000000, 0xF0748661, 0x40001273, 0x9F0F0481,
++	0x0304692F, 0x15602842, 0x00008888, 0x88888888,
++	0x00000000, 0x00000000, 0x00000000, 0x07100000,
++	0x00001B63, 0x00002000, 0x00004000, 0x00006000,
++	0x00000000, 0x00000000, 0x00000000, 0x00000000,
++#elif defined(CONFIG_MT7621_DRAM_DDR2_1024M_W971GG6KB18_1066MHZ)
++	0xAA00AA00, 0xAA00AA00, 0x00000007, 0x33484584,
++	0x01000000, 0xF07486A1, 0x50001273, 0x9F070481,
++	0x0304693F, 0x15602842, 0x00008888, 0x88888888,
++	0x00000000, 0x00000000, 0x00000010, 0x07100000,
++	0x00001F73, 0x00002000, 0x00004000, 0x00006000,
++	0x00000000, 0x00000000, 0x00000000, 0x00000000,
++#else /* CONFIG_MT7621_DRAM_DDR2_1024M */
++	0xAA00AA00, 0xAA00AA00, 0x00000007, 0x22174441,
++	0x01000000, 0xF0748661, 0x40001273, 0x9F0F0481,
++	0x0304692F, 0x15602842, 0x00008888, 0x88888888,
++	0x00000000, 0x00000000, 0x00000000, 0x07100000,
++	0x00001B63, 0x00002000, 0x00004000, 0x00006000,
++	0x00000000, 0x00000000, 0x00000000, 0x00000000,
++#endif
++};
++
++static const u32 ddr3_act[DDR_PARAM_SIZE] = {
++#if defined(CONFIG_MT7621_DRAM_DDR3_1024M)
++	0xAA00AA00, 0xAA00AA00, 0x00000007, 0x44694683,
++	0x01000000, 0xF07486A1, 0xC287221D, 0x9F060481,
++	0x03046948, 0x15602842, 0x00008888, 0x88888888,
++	0x00000000, 0x00000000, 0x00000210, 0x07100000,
++	0x00001B61, 0x00002040, 0x00004010, 0x00006000,
++	0x0C000000, 0x07070000, 0x00000000, 0x00000000,
++#elif defined(CONFIG_MT7621_DRAM_DDR3_4096M)
++	0xAA00AA00, 0xAA00AA00, 0x00000007, 0x44694683,
++	0x01000000, 0xF07486A1, 0xC287221D, 0x9F0F0481,
++	0x03046948, 0x15602842, 0x00008888, 0x88888888,
++	0x00000000, 0x00000000, 0x00000240, 0x07100000,
++	0x00001B61, 0x00002040, 0x00004010, 0x00006000,
++	0x0C000000, 0x07070000, 0x00000000, 0x00000000,
++#elif defined(CONFIG_MT7621_DRAM_DDR3_1024M_KGD)
++	0xFF00FF00, 0xFF00FF00, 0x00000007, 0x44694683,
++	0x01000000, 0xF07406A1, 0xC287221D, 0x9F060481,
++	0x03046923, 0x152f2842, 0x00008888, 0x88888888,
++	0x00000000, 0x00000000, 0x00000210, 0x07100000,
++	0x00001B61, 0x00002040, 0x00004010, 0x00006000,
++	0x0C000000, 0x07070000, 0x000C0000, 0x00000000,
++#else /* CONFIG_MT7621_DRAM_DDR3_2048M */
++	0xAA00AA00, 0xAA00AA00, 0x00000007, 0x44694673,
++	0x01000000, 0xF07486A1, 0xC287221D, 0x9F050481,
++	0x03046948, 0x15602842, 0x00008888, 0x88888888,
++	0x00000000, 0x00000000, 0x00000220, 0x07100000,
++	0x00001B61, 0x00002040, 0x00004010, 0x00006000,
++	0x0C000000, 0x07070000, 0x00000000, 0x00000000,
++#endif
++};
++
++#if defined(CONFIG_MT7621_DRAM_FREQ_400)
++#define DDR_FREQ_PARAM		0x41000000
++#elif defined(CONFIG_MT7621_DRAM_FREQ_1066)
++#define DDR_FREQ_PARAM		0x21000000
++#elif defined(CONFIG_MT7621_DRAM_FREQ_1200)
++#define DDR_FREQ_PARAM		0x11000000
++#else /* CONFIG_MT7621_DRAM_FREQ_800 */
++#define DDR_FREQ_PARAM		0x31000000
++#endif
++
++#define RG_MEPL_FBDIV_S		4
++#define RG_MEPL_FBDIV_M		0x7f
++
++static inline void word_copy(u32 *dest, const u32 *src, u32 count)
++{
++	u32 i;
++
++	for (i = 0; i < count; i++)
++		dest[i] = src[i];
++}
++
++static u32 calc_cpu_pll_val(void)
++{
++	u32 div, baseval, fb;
++
++	div = get_xtal_mhz();
++
++	if (div == 40) {
++		div /= 2;
++		baseval = 0xc0005802;
++	} else {
++		baseval = 0xc0004802;
++	}
++
++	fb = CONFIG_MT7621_CPU_FREQ / div - 1;
++	if (fb > RG_MEPL_FBDIV_M)
++		fb = RG_MEPL_FBDIV_M;
++
++	return baseval | (fb << RG_MEPL_FBDIV_S);
++}
++
++void prepare_stage_bin(void)
++{
++	u32 stage_size;
++
++	const struct stage_header *stock_stage_bin =
++		(const struct stage_header *)__image_copy_end;
++
++	struct stage_header *new_stage_bin =
++		(struct stage_header *)STAGE_LOAD_ADDR;
++
++	if (be32_to_cpu(stock_stage_bin->ep) != STAGE_LOAD_ADDR)
++		panic("Invalid DDR stage binary blob\n");
++
++	stage_size = be32_to_cpu(stock_stage_bin->stage_size);
++
++	word_copy((u32 *)new_stage_bin, (const u32 *)stock_stage_bin,
++		  (stage_size + sizeof(u32) - 1) / sizeof(u32));
++
++	word_copy(new_stage_bin->ddr2_act, ddr2_act, DDR_PARAM_SIZE);
++	word_copy(new_stage_bin->ddr3_act, ddr3_act, DDR_PARAM_SIZE);
++
++	new_stage_bin->cpu_pll_cfg = calc_cpu_pll_val();
++	new_stage_bin->ddr_pll_cfg = DDR_FREQ_PARAM;
++	new_stage_bin->baudrate = CONFIG_BAUDRATE;
++}
+diff --git a/arch/mips/mach-mtmips/mt7621/spl/dram.h b/arch/mips/mach-mtmips/mt7621/spl/dram.h
+new file mode 100644
+index 0000000000..7322c58276
+--- /dev/null
++++ b/arch/mips/mach-mtmips/mt7621/spl/dram.h
+@@ -0,0 +1,39 @@
++/* SPDX-License-Identifier: GPL-2.0 */
++/*
++ * Copyright (C) 2022 MediaTek Inc. All rights reserved.
++ *
++ * Author: Weijie Gao <[email protected]>
++ */
++
++#ifndef _MT7621_DRAM_H_
++#define _MT7621_DRAM_H_
++
++#define STAGE_LOAD_ADDR			0xBE108800
++
++#ifndef __ASSEMBLY__
++#include <linux/types.h>
++
++#define DDR_PARAM_SIZE			24
++
++struct stage_header {
++	u32 jump_insn[2];
++	u32 ep;
++	u32 stage_size;
++	u32 has_stage2;
++	u32 next_ep;
++	u32 next_size;
++	u32 next_offset;
++	u32 cpu_pll_cfg;
++	u32 ddr_pll_cfg;
++	u32 reserved2[6];
++	char build_tag[32];
++	u32 ddr3_act[DDR_PARAM_SIZE];
++	u32 padding1[2];
++	u32 ddr2_act[DDR_PARAM_SIZE];
++	u32 padding2[2];
++	u32 baudrate;
++	u32 padding3;
++};
++#endif
++
++#endif /* _MT7621_DRAM_H_ */
+diff --git a/arch/mips/mach-mtmips/mt7621/spl/launch.c b/arch/mips/mach-mtmips/mt7621/spl/launch.c
+new file mode 100644
+index 0000000000..37c20a5f56
+--- /dev/null
++++ b/arch/mips/mach-mtmips/mt7621/spl/launch.c
+@@ -0,0 +1,100 @@
++// SPDX-License-Identifier: GPL-2.0
++/*
++ * Copyright (C) 2022 MediaTek Inc. All rights reserved.
++ *
++ * Author: Weijie Gao <[email protected]>
++ */
++
++#include <asm/io.h>
++#include <asm/cm.h>
++#include <asm/sections.h>
++#include <asm/addrspace.h>
++#include <asm/mipsmtregs.h>
++#include <linux/sizes.h>
++#include <time.h>
++#include <cpu_func.h>
++#include "launch.h"
++#include "../mt7621.h"
++
++/* Cluster Power Controller (CPC) offsets */
++#define CPC_CL_OTHER			0x2010
++#define CPC_CO_CMD			0x4000
++
++/* CPC_CL_OTHER fields */
++#define CPC_CL_OTHER_CORENUM_SHIFT	16
++#define CPC_CL_OTHER_CORENUM		GENMASK(23, 16)
++
++/* CPC_CO_CMD */
++#define PWR_UP				3
++
++#define NUM_CORES			2
++#define NUM_CPUS			4
++#define WAIT_CPUS_TIMEOUT		4000
++
++static void copy_launch_wait_code(void)
++{
++	memset((void *)KSEG1, 0, SZ_4K);
++
++	memcpy((void *)KSEG1ADDR(LAUNCH_WAITCODE),
++	       &launch_wait_code_start,
++	       &launch_wait_code_end - &launch_wait_code_start);
++
++	invalidate_dcache_range(KSEG0, SZ_4K);
++}
++
++static void bootup_secondary_core(void)
++{
++	void __iomem *cpcbase = (void __iomem *)KSEG1ADDR(MIPS_CPC_BASE);
++	int i;
++
++	for (i = 1; i < NUM_CORES; i++) {
++		writel(i << CPC_CL_OTHER_CORENUM_SHIFT, cpcbase + CPC_CL_OTHER);
++		writel(PWR_UP, cpcbase + CPC_CO_CMD);
++	}
++}
++
++void secondary_cpu_init(void)
++{
++	void __iomem *sysc = (void __iomem *)KSEG1ADDR(SYSCTL_BASE);
++	u32 i, dual_core = 0, cpuready = 1, cpumask = 0x03;
++	ulong wait_tick;
++	struct cpulaunch_t *c;
++
++	/* Copy LAUNCH wait code used by other VPEs */
++	copy_launch_wait_code();
++
++	dual_core = readl(sysc + SYSCTL_CHIP_REV_ID_REG) & CPU_ID;
++
++	if (dual_core) {
++		/* Bootup secondary core for MT7621A */
++		cpumask = 0x0f;
++
++		/* Make BootROM/TPL redirect Core1's bootup flow to our entry point */
++		writel((uintptr_t)&_start, sysc + BOOT_SRAM_BASE_REG);
++
++		bootup_secondary_core();
++	}
++
++	/* Join the coherent domain */
++	join_coherent_domain(dual_core ? 2 : 1);
++
++	/* Bootup Core0/VPE1 */
++	boot_vpe1();
++
++	/* Wait for all CPU ready */
++	wait_tick = get_timer(0) + WAIT_CPUS_TIMEOUT;
++
++	while (time_before(get_timer(0), wait_tick)) {
++		/* CPU0 is obviously ready */
++		for (i = 1; i < NUM_CPUS; i++) {
++			c = (struct cpulaunch_t *)(KSEG0ADDR(CPULAUNCH) +
++						   (i << LOG2CPULAUNCH));
++
++			if (c->flags & LAUNCH_FREADY)
++				cpuready |= BIT(i);
++		}
++
++		if ((cpuready & cpumask) == cpumask)
++			break;
++	}
++}
+diff --git a/arch/mips/mach-mtmips/mt7621/spl/launch.h b/arch/mips/mach-mtmips/mt7621/spl/launch.h
+new file mode 100644
+index 0000000000..f34250d605
+--- /dev/null
++++ b/arch/mips/mach-mtmips/mt7621/spl/launch.h
+@@ -0,0 +1,52 @@
++/* SPDX-License-Identifier: GPL-2.0 */
++/*
++ * Copyright (C) 2022 MediaTek Inc. All rights reserved.
++ *
++ * Author: Weijie Gao <[email protected]>
++ */
++
++#ifndef _LAUNCH_H_
++#define _LAUNCH_H_
++
++#ifndef __ASSEMBLY__
++
++struct cpulaunch_t {
++	unsigned long pc;
++	unsigned long gp;
++	unsigned long sp;
++	unsigned long a0;
++	unsigned long _pad[3]; /* pad to cache line size to avoid thrashing */
++	unsigned long flags;
++};
++
++extern char launch_wait_code_start;
++extern char launch_wait_code_end;
++
++void join_coherent_domain(int ncores);
++void boot_vpe1(void);
++
++#else
++
++#define	LAUNCH_PC		0
++#define	LAUNCH_GP		4
++#define	LAUNCH_SP		8
++#define	LAUNCH_A0		12
++#define	LAUNCH_FLAGS		28
++
++#endif
++
++#define LOG2CPULAUNCH		5
++
++#define LAUNCH_FREADY		1
++#define LAUNCH_FGO		2
++#define LAUNCH_FGONE		4
++
++#define LAUNCH_WAITCODE		0x00000d00
++#define SCRLAUNCH		0x00000e00
++#define CPULAUNCH		0x00000f00
++#define NCPULAUNCH		8
++
++/* Polling period in count cycles for secondary CPU's */
++#define LAUNCHPERIOD		10000
++
++#endif /* _LAUNCH_H_ */
+diff --git a/arch/mips/mach-mtmips/mt7621/spl/launch_ll.S b/arch/mips/mach-mtmips/mt7621/spl/launch_ll.S
+new file mode 100644
+index 0000000000..32d28c7539
+--- /dev/null
++++ b/arch/mips/mach-mtmips/mt7621/spl/launch_ll.S
+@@ -0,0 +1,339 @@
++/* SPDX-License-Identifier: GPL-2.0 */
++/*
++ * Copyright (C) 2022 MediaTek Inc. All rights reserved.
++ *
++ * Author: Weijie Gao <[email protected]>
++ */
++
++#include <asm/cm.h>
++#include <asm/asm.h>
++#include <asm/regdef.h>
++#include <asm/cacheops.h>
++#include <asm/mipsregs.h>
++#include <asm/addrspace.h>
++#include <asm/mipsmtregs.h>
++#include "launch.h"
++
++	.macro cache_loop	curr, end, line_sz, op
++10:	cache		\op, 0(\curr)
++	PTR_ADDU	\curr, \curr, \line_sz
++	bne		\curr, \end, 10b
++	.endm
++
++	.set	mt
++
++/*
++ * Join the coherent domain
++ * a0 = number of cores
++ */
++LEAF(join_coherent_domain)
++	/*
++	 * Enable coherence and allow interventions from all other cores.
++	 * (Write access enabled via GCR_ACCESS by core 0.)
++	 */
++	li	t1, 1
++	sll	t1, a0
++	addiu	t1, -1
++
++	li	t0, KSEG1ADDR(CONFIG_MIPS_CM_BASE)
++	sw	t1, GCR_Cx_COHERENCE(t0)
++	ehb
++
++	move	t2, zero
++
++_next_coherent_core:
++	sll	t1, t2, GCR_Cx_OTHER_CORENUM_SHIFT
++	sw	t1, GCR_Cx_OTHER(t0)
++
++_busy_wait_coherent_core:
++	lw	t1, GCR_CO_COHERENCE(t0)
++	beqz	t1, _busy_wait_coherent_core
++
++	addiu	t2, 1
++	bne	t2, a0, _next_coherent_core
++
++	jr	ra
++	END(join_coherent_domain)
++
++/*
++ * All VPEs other than VPE0 will go here.
++ */
++LEAF(launch_vpe_entry)
++	mfc0	t0, CP0_EBASE
++	and	t0, t0, MIPS_EBASE_CPUNUM
++
++	/* per-VPE cpulaunch_t */
++	li	a0, KSEG0ADDR(CPULAUNCH)
++	sll	t1, t0, LOG2CPULAUNCH
++	addu	a0, t1
++
++	/* Set CPU online flag */
++	li	t0, LAUNCH_FREADY
++	sw	t0, LAUNCH_FLAGS(a0)
++
++	/* Enable count interrupt in mask, but do not enable interrupts */
++	mfc0	t0, CP0_STATUS
++	ori	t0, STATUSF_IP7
++	mtc0	t0, CP0_STATUS
++
++	/* VPEs executing in wait code do not need a stack */
++	li	t9, KSEG0ADDR(LAUNCH_WAITCODE)
++	jr	t9
++	END(launch_vpe_entry)
++
++/*
++ * This function will not be executed in place.
++ * It will be copied into memory, and VPEs other than VPE0 will be
++ * started to run into this in-memory function.
++ */
++LEAF(launch_wait_code)
++	.globl	launch_wait_code_start
++launch_wait_code_start:
++
++	move	t0, a0
++
++start_poll:
++	/* Poll CPU go flag */
++	mtc0	zero, CP0_COUNT
++	li	t1, LAUNCHPERIOD
++	mtc0	t1, CP0_COMPARE
++
++time_wait:
++	/* Software wait */
++	mfc0	t2, CP0_COUNT
++	subu	t2, t1
++	bltz	t2, time_wait
++
++	/* Check the launch flag */
++	lw	t3, LAUNCH_FLAGS(t0)
++	and	t3, LAUNCH_FGO
++	beqz	t3, start_poll
++
++	/* Reset the counter and interrupts to give naive clients a chance */
++	mfc0	t1, CP0_STATUS
++	ins	t1, zero, STATUSB_IP7, 1
++	mtc0	t1, CP0_STATUS
++
++	mfc0	t1, CP0_COUNT
++	subu	t1, 1
++	mtc0	t1, CP0_COMPARE
++
++	/* Jump to kernel */
++	lw	t9, LAUNCH_PC(t0)
++	lw	gp, LAUNCH_GP(t0)
++	lw	sp, LAUNCH_SP(t0)
++	lw	a0, LAUNCH_A0(t0)
++	move	a1, zero
++	move	a2, zero
++	move	a3, zero
++	ori	t3, LAUNCH_FGONE
++	sw	t3, LAUNCH_FLAGS(t0)
++
++	jr	t9
++
++	.globl	launch_wait_code_end
++launch_wait_code_end:
++	END(launch_wait_code)
++
++/*
++ * Core1 will go here.
++ */
++LEAF(launch_core_entry)
++	/* Disable caches */
++	bal	mips_cache_disable
++
++	/* Initialize L1 cache only */
++	li	a0, CONFIG_SYS_ICACHE_SIZE
++	li	a1, CONFIG_SYS_ICACHE_LINE_SIZE
++	li	a2, CONFIG_SYS_DCACHE_SIZE
++	li	a3, CONFIG_SYS_DCACHE_LINE_SIZE
++
++	mtc0	zero, CP0_TAGLO
++	mtc0	zero, CP0_TAGLO, 2
++	ehb
++
++	/*
++	 * Initialize the I-cache first,
++	 */
++	li		t0, KSEG0
++	addu		t1, t0, a0
++	/* clear tag to invalidate */
++	cache_loop	t0, t1, a1, INDEX_STORE_TAG_I
++#ifdef CONFIG_SYS_MIPS_CACHE_INIT_RAM_LOAD
++	/* fill once, so data field parity is correct */
++	PTR_LI		t0, KSEG0
++	cache_loop	t0, t1, a1, FILL
++	/* invalidate again - prudent but not strictly necessary */
++	PTR_LI		t0, KSEG0
++	cache_loop	t0, t1, a1, INDEX_STORE_TAG_I
++#endif
++
++	/*
++	 * then initialize D-cache.
++	 */
++	PTR_LI		t0, KSEG0
++	PTR_ADDU	t1, t0, a2
++	/* clear all tags */
++	cache_loop	t0, t1, a3, INDEX_STORE_TAG_D
++#ifdef CONFIG_SYS_MIPS_CACHE_INIT_RAM_LOAD
++	/* load from each line (in cached space) */
++	PTR_LI		t0, KSEG0
++2:	LONG_L		zero, 0(t0)
++	PTR_ADDU	t0, a3
++	 bne		t0, t1, 2b
++	/* clear all tags */
++	PTR_LI		t0, KSEG0
++	cache_loop	t0, t1, a3, INDEX_STORE_TAG_D
++#endif
++
++	/* Set Cache Mode */
++	mfc0	t0, CP0_CONFIG
++	li	t1, CONF_CM_CACHABLE_COW
++	ins	t0, t1, 0, 3
++	mtc0	t0, CP0_CONFIG
++
++	/* Join the coherent domain */
++	li	a0, 2
++	bal	join_coherent_domain
++
++	/* Bootup Core0/VPE1 */
++	bal	boot_vpe1
++
++	b	launch_vpe_entry
++	END(launch_core_entry)
++
++/*
++ * Bootup VPE1.
++ * This subroutine must be executed from VPE0 with VPECONF0[MVP] already set.
++ */
++LEAF(boot_vpe1)
++	mfc0	t0, CP0_MVPCONF0
++
++	/* a0 = number of TCs - 1 */
++	ext	a0, t0, MVPCONF0_PTC_SHIFT, 8
++	beqz	a0, _vpe1_init_done
++
++	/* a1 = number of VPEs - 1 */
++	ext	a1, t0, MVPCONF0_PVPE_SHIFT, 4
++	beqz	a1, _vpe1_init_done
++
++	/* a2 = current TC No. */
++	move	a2, zero
++
++	/* Enter VPE Configuration State */
++	mfc0	t0, CP0_MVPCONTROL
++	or	t0, MVPCONTROL_VPC
++	mtc0	t0, CP0_MVPCONTROL
++	ehb
++
++_next_tc:
++	/* Set the TC number to be used on MTTR and MFTR instructions */
++	mfc0	t0, CP0_VPECONTROL
++	ins	t0, a2, 0, 8
++	mtc0	t0, CP0_VPECONTROL
++	ehb
++
++	/* TC0 is already bound */
++	beqz	a2, _next_vpe
++
++	/* Halt current TC */
++	li	t0, TCHALT_H
++	mttc0	t0, CP0_TCHALT
++	ehb
++
++	/* If there is spare TC, bind it to the last VPE (VPE[a1]) */
++	slt	t1, a1, a2
++	bnez	t1, _vpe_bind_tc
++	 move	t1, a1
++
++	/* Set Exclusive TC for active TC */
++	mftc0	t0, CP0_VPECONF0
++	ins	t0, a2, VPECONF0_XTC_SHIFT, 8
++	mttc0	t0, CP0_VPECONF0
++
++	move	t1, a2
++_vpe_bind_tc:
++	/* Bind TC to a VPE */
++	mftc0	t0, CP0_TCBIND
++	ins	t0, t1, TCBIND_CURVPE_SHIFT, 4
++	mttc0	t0, CP0_TCBIND
++
++	/*
++	 * Set up CP0_TCSTATUS register:
++	 * Disable Coprocessor Usable bits
++	 * Disable MDMX/DSP ASE
++	 * Clear Dirty TC
++	 * not dynamically allocatable
++	 * not allocated
++	 * Kernel mode
++	 * interrupt exempt
++	 * ASID 0
++	 */
++	li	t0, TCSTATUS_IXMT
++	mttc0	t0, CP0_TCSTATUS
++
++_next_vpe:
++	slt	t1, a1, a2
++	bnez	t1, _done_vpe	# No more VPEs
++
++	/* Disable TC multi-threading */
++	mftc0	t0, CP0_VPECONTROL
++	ins	t0, zero, VPECONTROL_TE_SHIFT, 1
++	mttc0	t0, CP0_VPECONTROL
++
++	/* Skip following configuration for TC0 */
++	beqz	a2, _done_vpe
++
++	/* Deactivate VPE, set Master VPE */
++	mftc0	t0, CP0_VPECONF0
++	ins	t0, zero, VPECONF0_VPA_SHIFT, 1
++	or	t0, VPECONF0_MVP
++	mttc0	t0, CP0_VPECONF0
++
++	mfc0	t0, CP0_STATUS
++	mttc0	t0, CP0_STATUS
++
++	mttc0	zero, CP0_EPC
++	mttc0	zero, CP0_CAUSE
++
++	mfc0	t0, CP0_CONFIG
++	mttc0	t0, CP0_CONFIG
++
++	/*
++	 * VPE1 of each core can execute cached as its L1 I$ has already
++	 * been initialized.
++	 * and the L2$ has been initialized or "disabled" via CCA override.
++	 */
++	PTR_LA	t0, _start
++	mttc0	t0, CP0_TCRESTART
++
++	/* Unset Interrupt Exempt, set Activate Thread */
++	mftc0	t0, CP0_TCSTATUS
++	ins	t0, zero, TCSTATUS_IXMT_SHIFT, 1
++	ori	t0, TCSTATUS_A
++	mttc0	t0, CP0_TCSTATUS
++
++	/* Resume TC */
++	mttc0	zero, CP0_TCHALT
++
++	/* Activate VPE */
++	mftc0	t0, CP0_VPECONF0
++	ori	t0, VPECONF0_VPA
++	mttc0	t0, CP0_VPECONF0
++
++_done_vpe:
++	addu	a2, 1
++	sltu	t0, a0, a2
++	beqz	t0, _next_tc
++
++	mfc0	t0, CP0_MVPCONTROL
++	/* Enable all activated VPE to execute */
++	ori	t0, MVPCONTROL_EVP
++	/* Exit VPE Configuration State */
++	ins	t0, zero, MVPCONTROL_VPC_SHIFT, 1
++	mtc0	t0, CP0_MVPCONTROL
++	ehb
++
++_vpe1_init_done:
++	jr	ra
++	END(boot_vpe1)
+diff --git a/arch/mips/mach-mtmips/mt7621/spl/serial.c b/arch/mips/mach-mtmips/mt7621/spl/serial.c
+new file mode 100644
+index 0000000000..5cf093a078
+--- /dev/null
++++ b/arch/mips/mach-mtmips/mt7621/spl/serial.c
+@@ -0,0 +1,24 @@
++// SPDX-License-Identifier: GPL-2.0
++/*
++ * Copyright (C) 2022 MediaTek Inc. All rights reserved.
++ *
++ * Author: Weijie Gao <[email protected]>
++ */
++
++#include <asm/io.h>
++#include "../mt7621.h"
++
++void mtmips_spl_serial_init(void)
++{
++#ifdef CONFIG_SPL_SERIAL
++	void __iomem *base = ioremap_nocache(SYSCTL_BASE, SYSCTL_SIZE);
++
++#if CONFIG_CONS_INDEX == 1
++	clrbits_32(base + SYSCTL_GPIOMODE_REG, UART1_MODE);
++#elif CONFIG_CONS_INDEX == 2
++	clrbits_32(base + SYSCTL_GPIOMODE_REG, UART2_MODE_M);
++#elif CONFIG_CONS_INDEX == 3
++	clrbits_32(base + SYSCTL_GPIOMODE_REG, UART3_MODE_M);
++#endif /* CONFIG_CONS_INDEX */
++#endif /* CONFIG_SPL_SERIAL */
++}
+diff --git a/arch/mips/mach-mtmips/mt7621/spl/spl.c b/arch/mips/mach-mtmips/mt7621/spl/spl.c
+new file mode 100644
+index 0000000000..71d01aa7f5
+--- /dev/null
++++ b/arch/mips/mach-mtmips/mt7621/spl/spl.c
+@@ -0,0 +1,95 @@
++// SPDX-License-Identifier: GPL-2.0
++/*
++ * Copyright (C) 2022 MediaTek Inc. All rights reserved.
++ *
++ * Author: Weijie Gao <[email protected]>
++ */
++
++#include <spl.h>
++#include <init.h>
++#include <image.h>
++#include <vsprintf.h>
++#include <malloc.h>
++#include <asm/io.h>
++#include <asm/sections.h>
++#include <asm/addrspace.h>
++#include <asm/byteorder.h>
++#include <asm/global_data.h>
++#include <linux/sizes.h>
++#include <mach/serial.h>
++#include "../mt7621.h"
++#include "dram.h"
++
++DECLARE_GLOBAL_DATA_PTR;
++
++struct tpl_info {
++	u32 magic;
++	u32 size;
++};
++
++void set_timer_freq_simple(void)
++{
++	u32 div = get_xtal_mhz();
++
++	/* Round down cpu freq */
++	gd->arch.timer_freq = rounddown(CONFIG_MT7621_CPU_FREQ, div) * 500000;
++}
++
++void __noreturn board_init_f(ulong dummy)
++{
++	spl_init();
++
++#ifdef CONFIG_SPL_SERIAL
++	/*
++	 * mtmips_spl_serial_init() is useful if debug uart is enabled,
++	 * or DM based serial is not enabled.
++	 */
++	mtmips_spl_serial_init();
++	preloader_console_init();
++#endif
++
++	board_init_r(NULL, 0);
++}
++
++void board_boot_order(u32 *spl_boot_list)
++{
++#ifdef CONFIG_MT7621_BOOT_FROM_NAND
++	spl_boot_list[0] = BOOT_DEVICE_NAND;
++#else
++	spl_boot_list[0] = BOOT_DEVICE_NOR;
++#endif
++}
++
++unsigned long spl_nor_get_uboot_base(void)
++{
++	const struct tpl_info *tpli;
++	const image_header_t *hdr;
++	u32 addr;
++
++	addr = FLASH_MMAP_BASE + TPL_INFO_OFFSET;
++	tpli = (const struct tpl_info *)KSEG1ADDR(addr);
++
++	if (tpli->magic == TPL_INFO_MAGIC) {
++		addr = FLASH_MMAP_BASE + tpli->size;
++		hdr = (const image_header_t *)KSEG1ADDR(addr);
++
++		if (image_get_magic(hdr) == IH_MAGIC) {
++			addr += sizeof(*hdr) + image_get_size(hdr);
++			return KSEG1ADDR(addr);
++		}
++	}
++
++	panic("Unable to locate SPL payload\n");
++	return 0;
++}
++
++uint32_t spl_nand_get_uboot_raw_page(void)
++{
++	const struct stage_header *sh = (const struct stage_header *)&_start;
++	u32 addr;
++
++	addr = image_get_header_size() + be32_to_cpu(sh->stage_size);
++	addr = ALIGN(addr, SZ_4K);
++
++	return addr;
++}
+diff --git a/arch/mips/mach-mtmips/mt7621/spl/start.S b/arch/mips/mach-mtmips/mt7621/spl/start.S
+new file mode 100644
+index 0000000000..3cad3567e7
+--- /dev/null
++++ b/arch/mips/mach-mtmips/mt7621/spl/start.S
+@@ -0,0 +1,226 @@
++/* SPDX-License-Identifier: GPL-2.0 */
++/*
++ * Copyright (C) 2022 MediaTek Inc. All rights reserved.
++ *
++ * Author: Weijie Gao <[email protected]>
++ */
++
++#include <asm-offsets.h>
++#include <config.h>
++#include <asm/asm.h>
++#include <asm/regdef.h>
++#include <asm/mipsregs.h>
++#include <asm/cacheops.h>
++#include <asm/addrspace.h>
++#include <asm/mipsmtregs.h>
++#include <asm/cm.h>
++#include "../mt7621.h"
++#include "dram.h"
++
++#ifndef CONFIG_SYS_INIT_SP_ADDR
++#define CONFIG_SYS_INIT_SP_ADDR	(CONFIG_SYS_SDRAM_BASE + \
++				CONFIG_SYS_INIT_SP_OFFSET)
++#endif
++
++#define SP_ADDR_TEMP		0xbe10dff0
++
++	.macro init_wr sel
++	MTC0	zero, CP0_WATCHLO,\sel
++	mtc0	t1, CP0_WATCHHI,\sel
++	.endm
++
++	.macro setup_stack_gd
++	li	t0, -16
++	PTR_LI	t1, CONFIG_SYS_INIT_SP_ADDR
++	and	sp, t1, t0		# force 16 byte alignment
++	PTR_SUBU \
++		sp, sp, GD_SIZE		# reserve space for gd
++	and	sp, sp, t0		# force 16 byte alignment
++	move	k0, sp			# save gd pointer
++#if CONFIG_VAL(SYS_MALLOC_F_LEN) && \
++    !CONFIG_IS_ENABLED(INIT_STACK_WITHOUT_MALLOC_F)
++	li	t2, CONFIG_VAL(SYS_MALLOC_F_LEN)
++	PTR_SUBU \
++		sp, sp, t2		# reserve space for early malloc
++	and	sp, sp, t0		# force 16 byte alignment
++#endif
++	move	fp, sp
++
++	/* Clear gd */
++	move	t0, k0
++1:
++	PTR_S	zero, 0(t0)
++	PTR_ADDIU t0, PTRSIZE
++	blt	t0, t1, 1b
++	 nop
++
++#if CONFIG_VAL(SYS_MALLOC_F_LEN) && \
++    !CONFIG_IS_ENABLED(INIT_STACK_WITHOUT_MALLOC_F)
++	PTR_S	sp, GD_MALLOC_BASE(k0)	# gd->malloc_base offset
++#endif
++	.endm
++
++	.set	noreorder
++
++ENTRY(_start)
++	b	1f
++	 mtc0	zero, CP0_COUNT
++
++	/* Stage header required by BootROM */
++	.org	0x8
++	.word	0		# ep, filled by mkimage
++	.word	0		# stage_size, filled by mkimage
++	.word	0		# has_stage2
++	.word	0		# next_ep
++	.word	0		# next_size
++	.word	0		# next_offset
++
++1:
++	/* Init CP0 Status */
++	mfc0	t0, CP0_STATUS
++	and	t0, ST0_IMPL
++	or	t0, ST0_BEV | ST0_ERL
++	mtc0	t0, CP0_STATUS
++	ehb
++
++	/* Clear Watch Status bits and disable watch exceptions */
++	li	t1, 0x7		# Clear I, R and W conditions
++	init_wr	0
++	init_wr	1
++	init_wr	2
++	init_wr	3
++
++	/* Clear WP, IV and SW interrupts */
++	mtc0	zero, CP0_CAUSE
++
++	/* Clear timer interrupt (CP0_COUNT cleared on branch to 'reset') */
++	mtc0	zero, CP0_COMPARE
++
++	/* VPE1 goes to wait code directly */
++	mfc0	t0, CP0_TCBIND
++	andi	t0, TCBIND_CURVPE
++	bnez	t0, launch_vpe_entry
++	 nop
++
++	/* Core1 goes to specific launch entry */
++	PTR_LI	t0, KSEG1ADDR(CONFIG_MIPS_CM_BASE)
++	lw	t1, GCR_Cx_ID(t0)
++	bnez	t1, launch_core_entry
++	 nop
++
++	/* MT7530 reset */
++	li	t0, KSEG1ADDR(SYSCTL_BASE)
++	lw	t1, SYSCTL_RSTCTL_REG(t0)
++	ori	t1, MCM_RST
++	sw	t1, SYSCTL_RSTCTL_REG(t0)
++
++	/* Disable DMA route for PSE SRAM set by BootROM */
++	PTR_LI	t0, KSEG1ADDR(DMA_CFG_ARB_BASE)
++	sw	zero, DMA_ROUTE_REG(t0)
++
++	/* Set CPU clock to 500MHz (Required if boot from NAND) */
++	li	t0, KSEG1ADDR(SYSCTL_BASE)
++	lw	t1, SYSCTL_CLKCFG0_REG(t0)
++	ins	t1, zero, 30, 2		# CPU_CLK_SEL
++	sw	t1, SYSCTL_CLKCFG0_REG(t0)
++
++	/* Set CPU clock divider to 1/1 */
++	li	t0, KSEG1ADDR(RBUS_BASE)
++	li	t1, 0x101
++	sw	t1, RBUS_DYN_CFG0_REG(t0)
++
++	/* (Re-)initialize the SRAM */
++	bal	mips_sram_init
++	 nop
++
++	/* Set up temporary stack */
++	li	sp, SP_ADDR_TEMP
++
++	/* Setup full CPS */
++	bal	mips_cm_map
++	 nop
++
++	bal	mt7621_cps_init
++	 nop
++
++	/* Prepare for CPU/DDR initialization binary blob */
++	bal	prepare_stage_bin
++	 nop
++
++	/* Call CPU/DDR initialization binary blob */
++	li	t9, STAGE_LOAD_ADDR
++	jalr	t9
++	 nop
++
++	/* Switch CPU PLL source */
++	li	t0, KSEG1ADDR(SYSCTL_BASE)
++	lw	t1, SYSCTL_CLKCFG0_REG(t0)
++	li	t2, 1
++	ins	t1, t2, CPU_CLK_SEL_S, 2
++	sw	t1, SYSCTL_CLKCFG0_REG(t0)
++
++	/*
++	 * Currently SPL is running on locked L2 cache (on KSEG0).
++	 * To reset the entire cache, we have to writeback SPL to DRAM first.
++	 * Cache flush won't work here. Use memcpy instead.
++	 */
++
++	la	a0, __text_start
++	move	a1, a0
++	la	a2, __image_copy_end
++	sub	a2, a2, a1
++	li	a3, 5
++	ins	a0, a3, 29, 3	# convert to KSEG1
++
++	bal	memcpy
++	 nop
++
++	/* Disable caches */
++	bal	mips_cache_disable
++	 nop
++
++	/* Reset caches */
++	bal	mips_cache_reset
++	 nop
++
++	/* Disable SRAM */
++	li	t0, KSEG1ADDR(FE_BASE)
++	li	t1, FE_PSE_RESET
++	sw	t1, FE_RST_GLO_REG(t0)
++
++	/* Clear the .bss section */
++	la	a0, __bss_start
++	la	a1, __bss_end
++1:	sw	zero, 0(a0)
++	addiu	a0, 4
++	ble	a0, a1, 1b
++	 nop
++
++	/* Set up initial stack and global data */
++	setup_stack_gd
++
++#if CONFIG_IS_ENABLED(INIT_STACK_WITHOUT_MALLOC_F)
++	/* Set malloc base */
++	li	t0, (CONFIG_SYS_INIT_SP_ADDR + 15) & (~15)
++	PTR_S	t0, GD_MALLOC_BASE(k0)	# gd->malloc_base offset
++#endif
++
++#if defined(CONFIG_DEBUG_UART) && defined(CONFIG_SPL_SERIAL)
++	/* Earliest point to set up debug uart */
++	bal	debug_uart_init
++	 nop
++#endif
++
++	/* Setup timer */
++	bal	set_timer_freq_simple
++	 nop
++
++	/* Bootup secondary CPUs */
++	bal	secondary_cpu_init
++	 nop
++
++	move	a0, zero		# a0 <-- boot_flags = 0
++	bal board_init_f
++	 move	ra, zero
++
++	END(_start)
+diff --git a/arch/mips/mach-mtmips/mt7621/sram_init.S b/arch/mips/mach-mtmips/mt7621/sram_init.S
+new file mode 100644
+index 0000000000..03b9eab10b
+--- /dev/null
++++ b/arch/mips/mach-mtmips/mt7621/sram_init.S
+@@ -0,0 +1,22 @@
++/* SPDX-License-Identifier: GPL-2.0 */
++/*
++ * Copyright (C) 2022 MediaTek Inc. All rights reserved.
++ *
++ * Author: Weijie Gao <[email protected]>
++ */
++
++#include <asm/addrspace.h>
++#include <asm/asm.h>
++#include <asm/regdef.h>
++#include "mt7621.h"
++
++LEAF(mips_sram_init)
++	li	t0, KSEG1ADDR(FE_BASE)
++	li	t1, FE_PSE_RESET
++	sw	t1, FE_RST_GLO_REG(t0)
++
++	li	t1, (FE_PSE_RAM | FE_PSE_MEM_EN)
++	sw	t1, FE_RST_GLO_REG(t0)
++
++	jr	ra
++	END(mips_sram_init)
+diff --git a/arch/mips/mach-mtmips/mt7621/tpl/Makefile b/arch/mips/mach-mtmips/mt7621/tpl/Makefile
+new file mode 100644
+index 0000000000..471ad74249
+--- /dev/null
++++ b/arch/mips/mach-mtmips/mt7621/tpl/Makefile
+@@ -0,0 +1,4 @@
++
++extra-y += start.o
++
++obj-y += tpl.o
+diff --git a/arch/mips/mach-mtmips/mt7621/tpl/start.S b/arch/mips/mach-mtmips/mt7621/tpl/start.S
+new file mode 100644
+index 0000000000..19b09f7251
+--- /dev/null
++++ b/arch/mips/mach-mtmips/mt7621/tpl/start.S
+@@ -0,0 +1,161 @@
++/* SPDX-License-Identifier: GPL-2.0 */
++/*
++ * Copyright (C) 2022 MediaTek Inc. All rights reserved.
++ *
++ * Author: Weijie Gao <[email protected]>
++ */
++
++#include <asm-offsets.h>
++#include <config.h>
++#include <asm/asm.h>
++#include <asm/regdef.h>
++#include <asm/addrspace.h>
++#include <asm/mipsregs.h>
++#include <asm/cm.h>
++#include "../mt7621.h"
++
++#define SP_ADDR_TEMP		0xbe10dff0
++
++	.set noreorder
++
++	.macro init_wr sel
++	MTC0	zero, CP0_WATCHLO,\sel
++	mtc0	t1, CP0_WATCHHI,\sel
++	.endm
++
++	.macro uhi_mips_exception
++	move	k0, t9		# preserve t9 in k0
++	move	k1, a0		# preserve a0 in k1
++	li	t9, 15		# UHI exception operation
++	li	a0, 0		# Use hard register context
++	sdbbp	1		# Invoke UHI operation
++	.endm
++
++ENTRY(_start)
++	b	reset
++	 mtc0	zero, CP0_COUNT
++
++	/*
++	 * Store TPL size here.
++	 * This will be used by SPL to locate u-boot payload.
++	 */
++	.org	TPL_INFO_OFFSET
++	.word	TPL_INFO_MAGIC
++	.word	__image_copy_len
++
++	/* Exception vector */
++	.org 0x200
++	/* TLB refill, 32 bit task */
++	uhi_mips_exception
++
++	.org 0x280
++	/* XTLB refill, 64 bit task */
++	uhi_mips_exception
++
++	.org 0x300
++	/* Cache error exception */
++	uhi_mips_exception
++
++	.org 0x380
++	/* General exception */
++	uhi_mips_exception
++
++	.org 0x400
++	/* Catch interrupt exceptions */
++	uhi_mips_exception
++
++	.org 0x480
++	/* EJTAG debug exception */
++1:	b	1b
++	 nop
++
++	.org 0x500
++
++reset:
++	/* Set KSEG0 to Uncached */
++	mfc0	t0, CP0_CONFIG
++	ins	t0, zero, 0, 3
++	ori	t0, t0, CONF_CM_UNCACHED
++	mtc0	t0, CP0_CONFIG
++	ehb
++
++	/* Check for CPU number */
++	mfc0	t0, CP0_EBASE
++	and	t0, t0, MIPS_EBASE_CPUNUM
++	beqz	t0, 1f
++	 nop
++
++	/* Secondary core goes to specified SPL entry address */
++	li	t0, KSEG1ADDR(SYSCTL_BASE)
++	lw	t0, BOOT_SRAM_BASE_REG(t0)
++	jr	t0
++	 nop
++
++	/* Init CP0 Status */
++1:	mfc0	t0, CP0_STATUS
++	and	t0, ST0_IMPL
++	or	t0, ST0_BEV | ST0_ERL
++	mtc0	t0, CP0_STATUS
++	 nop
++
++	/* Clear Watch Status bits and disable watch exceptions */
++	li	t1, 0x7		# Clear I, R and W conditions
++	init_wr	0
++	init_wr	1
++	init_wr	2
++	init_wr	3
++
++	/* Clear WP, IV and SW interrupts */
++	mtc0	zero, CP0_CAUSE
++
++	/* Clear timer interrupt (CP0_COUNT cleared on branch to 'reset') */
++	mtc0	zero, CP0_COMPARE
++
++	/* Setup basic CPS */
++	bal	mips_cm_map
++	 nop
++
++	li	t0, KSEG1ADDR(CONFIG_MIPS_CM_BASE)
++	li	t1, GCR_REG0_BASE_VALUE
++	sw	t1, GCR_REG0_BASE(t0)
++
++	li	t1, ((GCR_REG0_MASK_VALUE << GCR_REGn_MASK_ADDRMASK_SHIFT) | \
++		    GCR_REGn_MASK_CMTGT_IOCU0)
++	sw	t1, GCR_REG0_MASK(t0)
++
++	lw	t1, GCR_BASE(t0)
++	ins	t1, zero, 0, 2		# CM_DEFAULT_TARGET
++	sw	t1, GCR_BASE(t0)
++
++	lw	t1, GCR_CONTROL(t0)
++	li	t2, GCR_CONTROL_SYNCCTL
++	or	t1, t1, t2
++	sw	t1, GCR_CONTROL(t0)
++
++	/* Increase SPI frequency */
++	li	t0, KSEG1ADDR(SPI_BASE)
++	li	t1, 5
++	sw	t1, SPI_SPACE_REG(t0)
++
++	/* Set CPU clock to 500MHz */
++	li	t0, KSEG1ADDR(SYSCTL_BASE)
++	lw	t1, SYSCTL_CLKCFG0_REG(t0)
++	ins	t1, zero, 30, 2		# CPU_CLK_SEL
++	sw	t1, SYSCTL_CLKCFG0_REG(t0)
++
++	/* Set CPU clock divider to 1/1 */
++	li	t0, KSEG1ADDR(RBUS_BASE)
++	li	t1, 0x101
++	sw	t1, RBUS_DYN_CFG0_REG(t0)
++
++	/* Initialize the SRAM */
++	bal	mips_sram_init
++	 nop
++
++	/* Set up initial stack */
++	li	sp, SP_ADDR_TEMP
++
++	bal	tpl_main
++	 nop
++
++	END(_start)
+diff --git a/arch/mips/mach-mtmips/mt7621/tpl/tpl.c b/arch/mips/mach-mtmips/mt7621/tpl/tpl.c
+new file mode 100644
+index 0000000000..2a828907a3
+--- /dev/null
++++ b/arch/mips/mach-mtmips/mt7621/tpl/tpl.c
+@@ -0,0 +1,144 @@
++// SPDX-License-Identifier: GPL-2.0
++/*
++ * Copyright (C) 2022 MediaTek Inc. All rights reserved.
++ *
++ * Author: Weijie Gao <[email protected]>
++ */
++
++#include <image.h>
++#include <asm/system.h>
++#include <asm/sections.h>
++#include <asm/cacheops.h>
++#include <asm/mipsregs.h>
++#include <asm/cm.h>
++
++#define INDEX_STORE_DATA_SD	0x0f
++
++typedef void __noreturn (*image_entry_noargs_t)(void);
++
++/*
++ * Lock L2 cache and fill data
++ * Assume that data is 4-byte aligned and start_addr/size is 32-byte aligned
++ */
++static void fill_lock_l2cache(uintptr_t dataptr, ulong start_addr, ulong size)
++{
++	ulong slsize = CONFIG_SYS_DCACHE_LINE_SIZE;
++	ulong end_addr = start_addr + size;
++	const u32 *data = (u32 *)dataptr;
++	ulong i, addr;
++	u32 val;
++
++	/* Clear WSC & SPR bit in ErrCtl */
++	val = read_c0_ecc();
++	val &= 0xcfffffff;
++	write_c0_ecc(val);
++	execution_hazard_barrier();
++
++	for (addr = start_addr; addr < end_addr; addr += slsize) {
++		/* Set STagLo to lock cache line */
++		write_c0_staglo((addr & 0x1ffff800) | 0xa0);
++		mips_cache(INDEX_STORE_TAG_SD, (void *)addr);
++
++		/* Fill data */
++		for (i = 0; i < slsize; i += 8) {
++			val = *data++;
++			__write_32bit_c0_register($28, 5, val); /* sdtaglo */
++			val = *data++;
++			__write_32bit_c0_register($29, 5, val); /* sdtaghi */
++			mips_cache(INDEX_STORE_DATA_SD, (void *)(addr + i));
++		}
++	}
++
++	sync();
++}
++
++/* A simple function to initialize MT7621's cache */
++static void mt7621_cache_init(void)
++{
++	void __iomem *cm_base = (void *)KSEG1ADDR(CONFIG_MIPS_CM_BASE);
++	ulong lsize = CONFIG_SYS_DCACHE_LINE_SIZE;
++	ulong addr;
++	u32 val;
++
++	/* Enable CCA override. Set to uncached */
++	val = readl(cm_base + GCR_BASE);
++	val &= ~CCA_DEFAULT_OVR_MASK;
++	val |= CCA_DEFAULT_OVREN | (2 << CCA_DEFAULT_OVR_SHIFT);
++	writel(val, cm_base + GCR_BASE);
++
++	/* Initialize L1 I-Cache */
++	write_c0_taglo(0);
++	write_c0_taghi(0);
++
++	for (addr = 0; addr < CONFIG_SYS_ICACHE_SIZE; addr += lsize)
++		mips_cache(INDEX_STORE_TAG_I, (void *)addr);
++
++	/* Initialize L1 D-Cache */
++	write_c0_dtaglo(0);
++	__write_32bit_c0_register($29, 2, 0); /* dtaghi */
++
++	for (addr = 0; addr < CONFIG_SYS_DCACHE_SIZE; addr += lsize)
++		mips_cache(INDEX_STORE_TAG_D, (void *)addr);
++
++	/* Initialize L2 Cache */
++	write_c0_staglo(0);
++	__write_32bit_c0_register($29, 4, 0); /* staghi */
++
++	for (addr = 0; addr < (256 << 10); addr += lsize)
++		mips_cache(INDEX_STORE_TAG_SD, (void *)addr);
++
++	/* Dsiable CCA override */
++	val = readl(cm_base + GCR_BASE);
++	val &= ~(CCA_DEFAULT_OVR_MASK | CCA_DEFAULT_OVREN);
++	writel(val, cm_base + GCR_BASE);
++
++	/* Set KSEG0 to non-coherent cached (important!) */
++	val = read_c0_config();
++	val &= ~CONF_CM_CMASK;
++	val |= CONF_CM_CACHABLE_NONCOHERENT;
++	write_c0_config(val);
++	execution_hazard_barrier();
++
++	/* Again, invalidate L1 D-Cache */
++	for (addr = 0; addr < CONFIG_SYS_DCACHE_SIZE; addr += lsize)
++		mips_cache(INDEX_WRITEBACK_INV_D, (void *)addr);
++
++	/* Invalidate L1 I-Cache */
++	for (addr = 0; addr < CONFIG_SYS_ICACHE_SIZE; addr += lsize)
++		mips_cache(INDEX_INVALIDATE_I, (void *)addr);
++
++	/* Disable L2 cache bypass */
++	val = read_c0_config2();
++	val &= ~MIPS_CONF_IMPL;
++	write_c0_config2(val);
++	execution_hazard_barrier();
++}
++
++void __noreturn tpl_main(void)
++{
++	const image_header_t *hdr = (const image_header_t *)__image_copy_end;
++	image_entry_noargs_t image_entry;
++	u32 loadaddr, size;
++	uintptr_t data;
++
++	/* Initialize the cache first */
++	mt7621_cache_init();
++
++	if (image_get_magic(hdr) != IH_MAGIC)
++		goto failed;
++
++	loadaddr = image_get_load(hdr);
++	size = image_get_size(hdr);
++	image_entry = (image_entry_noargs_t)image_get_ep(hdr);
++
++	/* Load TPL image to L2 cache */
++	data = (uintptr_t)__image_copy_end + sizeof(struct image_header);
++	fill_lock_l2cache(data, loadaddr, size);
++
++	/* Jump to SPL */
++	image_entry();
++
++failed:
++	for (;;)
++		;
++}
+diff --git a/include/configs/mt7621.h b/include/configs/mt7621.h
+new file mode 100644
+index 0000000000..dac6aa4afb
+--- /dev/null
++++ b/include/configs/mt7621.h
+@@ -0,0 +1,65 @@
++/* SPDX-License-Identifier: GPL-2.0 */
++/*
++ * Copyright (C) 2022 MediaTek Inc. All rights reserved.
++ *
++ * Author: Weijie Gao <[email protected]>
++ */
++
++#ifndef __CONFIG_MT7621_H
++#define __CONFIG_MT7621_H
++
++#define CONFIG_SYS_MIPS_TIMER_FREQ	440000000
++
++#define CONFIG_SYS_BOOTPARAMS_LEN	0x20000
++
++#define CONFIG_SYS_SDRAM_BASE		0x80000000
++
++#define CONFIG_VERY_BIG_RAM
++#define CONFIG_MAX_MEM_MAPPED		0x1c000000
++
++#define CONFIG_SYS_INIT_SP_OFFSET	0x800000
++
++#define CONFIG_SYS_BOOTM_LEN		0x2000000
++
++#define CONFIG_SYS_MAXARGS		16
++#define CONFIG_SYS_CBSIZE		1024
++
++#define CONFIG_SYS_NONCACHED_MEMORY	0x100000
++
++/* MMC */
++#define MMC_SUPPORTS_TUNING
++
++/* NAND */
++#define CONFIG_SYS_MAX_NAND_DEVICE	1
++
++/* Serial SPL */
++#if defined(CONFIG_SPL_BUILD) && defined(CONFIG_SPL_SERIAL)
++#define CONFIG_SYS_NS16550_MEM32
++#define CONFIG_SYS_NS16550_CLK		50000000
++#define CONFIG_SYS_NS16550_REG_SIZE	-4
++#define CONFIG_SYS_NS16550_COM1		0xbe000c00
++#endif
++
++/* Serial common */
++#define CONFIG_SYS_BAUDRATE_TABLE	{ 9600, 19200, 38400, 57600, 115200, \
++					  230400, 460800, 921600 }
++
++/* SPL */
++#define CONFIG_SYS_UBOOT_START		CONFIG_SYS_TEXT_BASE
++
++#ifdef CONFIG_TPL_BUILD
++#define CONFIG_SPL_START_S_PATH		"arch/mips/mach-mtmips/mt7621/tpl"
++/* .bss will not be used by TPL */
++#define CONFIG_SPL_BSS_START_ADDR	0x80000000
++#define CONFIG_SPL_BSS_MAX_SIZE		0
++#else
++#define CONFIG_SPL_START_S_PATH		"arch/mips/mach-mtmips/mt7621/spl"
++#define CONFIG_SPL_BSS_START_ADDR	0x80140000
++#define CONFIG_SPL_BSS_MAX_SIZE		0x80000
++#define CONFIG_SPL_MAX_SIZE		0x30000
++#endif
++
++/* Dummy value */
++#define CONFIG_SYS_UBOOT_BASE		0
++
++#endif /* __CONFIG_MT7621_H */
+-- 
+2.36.1
+

package/boot/uboot-mediatek/patches/001-mtk-0006-mips-mtmips-add-two-reference-boards-for-mt7621.patch

@@ -0,0 +1,456 @@
+From b1549087ecd1eb53f6173b17b473134fd6cca157 Mon Sep 17 00:00:00 2001
+From: Weijie Gao <[email protected]>
+Date: Fri, 20 May 2022 11:22:26 +0800
+Subject: [PATCH 06/25] mips: mtmips: add two reference boards for mt7621
+
+The mt7621_rfb board supports integrated giga PHYs plus one external
+giga PHYs. It also has up to 512MiB DDR3, 16MB SPI-NOR, 3 mini PCI-e x1
+slots, SDXC and USB.
+
+The mt7621_nand_rfb board is almost the same as mt7621_rfb board, but it
+uses NAND flash and SDXC is not available.
+
+Reviewed-by: Stefan Roese <[email protected]>
+Reviewed-by: Daniel Schwierzeck <[email protected]>
+Signed-off-by: Weijie Gao <[email protected]>
+---
+ arch/mips/dts/Makefile                     |  2 +
+ arch/mips/dts/mediatek,mt7621-nand-rfb.dts | 67 +++++++++++++++++
+ arch/mips/dts/mediatek,mt7621-rfb.dts      | 82 +++++++++++++++++++++
+ arch/mips/mach-mtmips/mt7621/Kconfig       | 20 +++++
+ board/mediatek/mt7621/MAINTAINERS          |  8 ++
+ board/mediatek/mt7621/Makefile             |  3 +
+ board/mediatek/mt7621/board.c              |  6 ++
+ configs/mt7621_nand_rfb_defconfig          | 85 ++++++++++++++++++++++
+ configs/mt7621_rfb_defconfig               | 82 +++++++++++++++++++++
+ 9 files changed, 355 insertions(+)
+ create mode 100644 arch/mips/dts/mediatek,mt7621-nand-rfb.dts
+ create mode 100644 arch/mips/dts/mediatek,mt7621-rfb.dts
+ create mode 100644 board/mediatek/mt7621/MAINTAINERS
+ create mode 100644 board/mediatek/mt7621/Makefile
+ create mode 100644 board/mediatek/mt7621/board.c
+ create mode 100644 configs/mt7621_nand_rfb_defconfig
+ create mode 100644 configs/mt7621_rfb_defconfig
+
+diff --git a/arch/mips/dts/Makefile b/arch/mips/dts/Makefile
+index 95144b24dc..1b179116c9 100644
+--- a/arch/mips/dts/Makefile
++++ b/arch/mips/dts/Makefile
+@@ -16,6 +16,8 @@ dtb-$(CONFIG_BOARD_COMTREND_WAP5813N) += comtrend,wap-5813n.dtb
+ dtb-$(CONFIG_BOARD_HUAWEI_HG556A) += huawei,hg556a.dtb
+ dtb-$(CONFIG_BOARD_MT7620_RFB) += mediatek,mt7620-rfb.dtb
+ dtb-$(CONFIG_BOARD_MT7620_MT7530_RFB) += mediatek,mt7620-mt7530-rfb.dtb
++dtb-$(CONFIG_BOARD_MT7621_RFB) += mediatek,mt7621-rfb.dtb
++dtb-$(CONFIG_BOARD_MT7621_NAND_RFB) += mediatek,mt7621-nand-rfb.dtb
+ dtb-$(CONFIG_BOARD_MT7628_RFB) += mediatek,mt7628-rfb.dtb
+ dtb-$(CONFIG_BOARD_GARDENA_SMART_GATEWAY_MT7688) += gardena-smart-gateway-mt7688.dtb
+ dtb-$(CONFIG_BOARD_LINKIT_SMART_7688) += linkit-smart-7688.dtb
+diff --git a/arch/mips/dts/mediatek,mt7621-nand-rfb.dts b/arch/mips/dts/mediatek,mt7621-nand-rfb.dts
+new file mode 100644
+index 0000000000..67ba298b0a
+--- /dev/null
++++ b/arch/mips/dts/mediatek,mt7621-nand-rfb.dts
+@@ -0,0 +1,67 @@
++// SPDX-License-Identifier: GPL-2.0
++/*
++ * Copyright (C) 2022 MediaTek Inc. All rights reserved.
++ *
++ * Author: Weijie Gao <[email protected]>
++ */
++
++/dts-v1/;
++
++#include "mt7621.dtsi"
++
++/ {
++	compatible = "mediatek,mt7621-nand-rfb", "mediatek,mt7621-soc";
++	model = "MediaTek MT7621 RFB (NAND)";
++
++	aliases {
++		serial0 = &uart0;
++	};
++
++	chosen {
++		stdout-path = &uart0;
++	};
++};
++
++&pinctrl {
++	state_default: pin_state {
++		nand {
++			groups = "spi", "sdxc";
++			function = "nand";
++		};
++
++		gpios {
++			groups = "i2c", "uart3", "pcie reset";
++			function = "gpio";
++		};
++
++		wdt {
++			groups = "wdt";
++			function = "wdt rst";
++		};
++
++		jtag {
++			groups = "jtag";
++			function = "jtag";
++		};
++	};
++};
++
++&uart0 {
++	status = "okay";
++};
++
++&gpio {
++	status = "okay";
++};
++
++&eth {
++	status = "okay";
++};
++
++&ssusb {
++	status = "okay";
++};
++
++&u3phy {
++	status = "okay";
++};
+diff --git a/arch/mips/dts/mediatek,mt7621-rfb.dts b/arch/mips/dts/mediatek,mt7621-rfb.dts
+new file mode 100644
+index 0000000000..ff7eaf0f20
+--- /dev/null
++++ b/arch/mips/dts/mediatek,mt7621-rfb.dts
+@@ -0,0 +1,82 @@
++// SPDX-License-Identifier: GPL-2.0
++/*
++ * Copyright (C) 2022 MediaTek Inc. All rights reserved.
++ *
++ * Author: Weijie Gao <[email protected]>
++ */
++
++/dts-v1/;
++
++#include "mt7621.dtsi"
++
++/ {
++	compatible = "mediatek,mt7621-rfb", "mediatek,mt7621-soc";
++	model = "MediaTek MT7621 RFB (SPI-NOR)";
++
++	aliases {
++		serial0 = &uart0;
++		spi0 = &spi;
++	};
++
++	chosen {
++		stdout-path = &uart0;
++	};
++};
++
++&pinctrl {
++	state_default: pin_state {
++		gpios {
++			groups = "i2c", "uart3", "pcie reset";
++			function = "gpio";
++		};
++
++		wdt {
++			groups = "wdt";
++			function = "wdt rst";
++		};
++
++		jtag {
++			groups = "jtag";
++			function = "jtag";
++		};
++	};
++};
++
++&uart0 {
++	status = "okay";
++};
++
++&gpio {
++	status = "okay";
++};
++
++&spi {
++	status = "okay";
++	num-cs = <2>;
++
++	spi-flash@0 {
++		#address-cells = <1>;
++		#size-cells = <1>;
++		compatible = "jedec,spi-nor";
++		spi-max-frequency = <25000000>;
++		reg = <0>;
++	};
++};
++
++&eth {
++	status = "okay";
++};
++
++&mmc {
++	cap-sd-highspeed;
++
++	status = "okay";
++};
++
++&ssusb {
++	status = "okay";
++};
++
++&u3phy {
++	status = "okay";
++};
+diff --git a/arch/mips/mach-mtmips/mt7621/Kconfig b/arch/mips/mach-mtmips/mt7621/Kconfig
+index 37d512c68f..008a28f991 100644
+--- a/arch/mips/mach-mtmips/mt7621/Kconfig
++++ b/arch/mips/mach-mtmips/mt7621/Kconfig
+@@ -79,6 +79,26 @@ config MT7621_BOOT_FROM_NAND
+ choice
+ 	prompt "Board select"
+ 
++config BOARD_MT7621_RFB
++	bool "MediaTek MT7621 RFB (SPI-NOR)"
++	help
++	  The reference design of MT7621A (WS3010) booting from SPI-NOR flash.
++	  The board can be configured with DDR2 (64MiB~256MiB) or DDR3
++	  (128MiB~512MiB). The board has 16 MiB SPI-NOR flash, built-in MT7530
++	  GbE switch, 1 UART, 1 USB 2.0 host, 1 USB 3.0 host, 1 SDXC, 3 PCIe
++	  sockets, 1 RGMII to external GbE PHY, 2 audio jacks (in/out),
++	  JTAG pins and expansion GPIO pins.
++
++config BOARD_MT7621_NAND_RFB
++	bool "MediaTek MT7621 RFB (NAND)"
++	help
++	  The reference design of MT7621A (WS3010) booting from NAND flash.
++	  The board can be configured with DDR2 (64MiB~256MiB) or DDR3
++	  (128MiB~512MiB). The board has 128 MiB parallel NAND flash, built-in
++	  MT7530 GbE switch, 1 UART, 1 USB 2.0 host, 1 USB 3.0 host, 3 PCIe
++	  sockets, 1 RGMII to external GbE PHY, 2 audio jacks (in/out),
++	  JTAG pins and expansion GPIO pins.
++
+ endchoice
+ 
+ config SYS_CONFIG_NAME
+diff --git a/board/mediatek/mt7621/MAINTAINERS b/board/mediatek/mt7621/MAINTAINERS
+new file mode 100644
+index 0000000000..f83141cea1
+--- /dev/null
++++ b/board/mediatek/mt7621/MAINTAINERS
+@@ -0,0 +1,8 @@
++MT7621_RFB BOARD
++M:	Weijie Gao <[email protected]>
++S:	Maintained
++F:	board/mediatek/mt7621
++F:	configs/mt7621_rfb_defconfig
++F:	configs/mt7621_nand_rfb_defconfig
++F:	arch/mips/dts/mediatek,mt7621-rfb.dts
++F:	arch/mips/dts/mediatek,mt7621-nand-rfb.dts
+diff --git a/board/mediatek/mt7621/Makefile b/board/mediatek/mt7621/Makefile
+new file mode 100644
+index 0000000000..db129c5aba
+--- /dev/null
++++ b/board/mediatek/mt7621/Makefile
+@@ -0,0 +1,3 @@
++# SPDX-License-Identifier: GPL-2.0
++
++obj-y += board.o
+diff --git a/board/mediatek/mt7621/board.c b/board/mediatek/mt7621/board.c
+new file mode 100644
+index 0000000000..0496f3f806
+--- /dev/null
++++ b/board/mediatek/mt7621/board.c
+@@ -0,0 +1,6 @@
++// SPDX-License-Identifier: GPL-2.0
++/*
++ * Copyright (C) 2022 MediaTek Inc. All rights reserved.
++ *
++ * Author: Weijie Gao <[email protected]>
++ */
+diff --git a/configs/mt7621_nand_rfb_defconfig b/configs/mt7621_nand_rfb_defconfig
+new file mode 100644
+index 0000000000..fe8543df49
+--- /dev/null
++++ b/configs/mt7621_nand_rfb_defconfig
+@@ -0,0 +1,85 @@
++CONFIG_MIPS=y
++CONFIG_SYS_MALLOC_LEN=0x100000
++CONFIG_SPL_LIBCOMMON_SUPPORT=y
++CONFIG_SPL_LIBGENERIC_SUPPORT=y
++CONFIG_NR_DRAM_BANKS=1
++CONFIG_ENV_SIZE=0x1000
++CONFIG_DEFAULT_DEVICE_TREE="mediatek,mt7621-nand-rfb"
++CONFIG_SPL_SERIAL=y
++CONFIG_SPL_SYS_MALLOC_F_LEN=0x100000
++CONFIG_SPL=y
++CONFIG_DEBUG_UART_BASE=0xbe000c00
++CONFIG_DEBUG_UART_CLOCK=50000000
++CONFIG_SYS_LOAD_ADDR=0x83000000
++CONFIG_ARCH_MTMIPS=y
++CONFIG_SOC_MT7621=y
++CONFIG_MT7621_BOOT_FROM_NAND=y
++CONFIG_BOARD_MT7621_NAND_RFB=y
++# CONFIG_MIPS_CACHE_SETUP is not set
++# CONFIG_MIPS_CACHE_DISABLE is not set
++CONFIG_RESTORE_EXCEPTION_VECTOR_BASE=y
++CONFIG_MIPS_BOOT_FDT=y
++CONFIG_DEBUG_UART=y
++CONFIG_FIT=y
++# CONFIG_ARCH_FIXUP_FDT_MEMORY is not set
++CONFIG_SYS_CONSOLE_INFO_QUIET=y
++CONFIG_SPL_SYS_MALLOC_SIMPLE=y
++CONFIG_SPL_NAND_SUPPORT=y
++CONFIG_SPL_NAND_BASE=y
++CONFIG_SPL_NAND_IDENT=y
++# CONFIG_BOOTM_NETBSD is not set
++# CONFIG_BOOTM_PLAN9 is not set
++# CONFIG_BOOTM_RTEMS is not set
++# CONFIG_BOOTM_VXWORKS is not set
++# CONFIG_CMD_ELF is not set
++# CONFIG_CMD_XIMG is not set
++# CONFIG_CMD_CRC32 is not set
++# CONFIG_CMD_DM is not set
++# CONFIG_CMD_FLASH is not set
++CONFIG_CMD_GPIO=y
++# CONFIG_CMD_LOADS is not set
++CONFIG_CMD_MMC=y
++CONFIG_CMD_MTD=y
++CONFIG_CMD_PART=y
++# CONFIG_CMD_PINMUX is not set
++CONFIG_CMD_USB=y
++# CONFIG_CMD_NFS is not set
++CONFIG_CMD_FAT=y
++CONFIG_CMD_FS_GENERIC=y
++# CONFIG_SPL_DOS_PARTITION is not set
++# CONFIG_ISO_PARTITION is not set
++CONFIG_EFI_PARTITION=y
++# CONFIG_SPL_EFI_PARTITION is not set
++CONFIG_PARTITION_TYPE_GUID=y
++CONFIG_SYS_RELOC_GD_ENV_ADDR=y
++CONFIG_NET_RANDOM_ETHADDR=y
++# CONFIG_I2C is not set
++# CONFIG_INPUT is not set
++CONFIG_MMC=y
++# CONFIG_MMC_QUIRKS is not set
++# CONFIG_MMC_HW_PARTITIONING is not set
++CONFIG_MMC_MTK=y
++CONFIG_MTD=y
++CONFIG_DM_MTD=y
++CONFIG_MTD_RAW_NAND=y
++CONFIG_NAND_MT7621=y
++CONFIG_SYS_NAND_ONFI_DETECTION=y
++CONFIG_SYS_NAND_U_BOOT_LOCATIONS=y
++CONFIG_SYS_NAND_U_BOOT_OFFS=0x0
++CONFIG_MEDIATEK_ETH=y
++CONFIG_PHY=y
++CONFIG_PHY_MTK_TPHY=y
++CONFIG_DEBUG_UART_SHIFT=2
++CONFIG_SYSRESET=y
++CONFIG_SYSRESET_RESETCTL=y
++CONFIG_USB=y
++CONFIG_USB_XHCI_HCD=y
++CONFIG_USB_XHCI_MTK=y
++CONFIG_USB_STORAGE=y
++CONFIG_WDT=y
++CONFIG_WDT_MT7621=y
++CONFIG_FAT_WRITE=y
++# CONFIG_BINMAN_FDT is not set
++CONFIG_LZMA=y
++# CONFIG_GZIP is not set
++CONFIG_SPL_LZMA=y
+diff --git a/configs/mt7621_rfb_defconfig b/configs/mt7621_rfb_defconfig
+new file mode 100644
+index 0000000000..ae62360e63
+--- /dev/null
++++ b/configs/mt7621_rfb_defconfig
+@@ -0,0 +1,82 @@
++CONFIG_MIPS=y
++CONFIG_SYS_MALLOC_LEN=0x100000
++CONFIG_SPL_LIBCOMMON_SUPPORT=y
++CONFIG_SPL_LIBGENERIC_SUPPORT=y
++CONFIG_NR_DRAM_BANKS=1
++CONFIG_ENV_SIZE=0x1000
++CONFIG_DEFAULT_DEVICE_TREE="mediatek,mt7621-rfb"
++CONFIG_SPL_SERIAL=y
++CONFIG_SPL_SYS_MALLOC_F_LEN=0x40000
++CONFIG_SPL=y
++CONFIG_DEBUG_UART_BASE=0xbe000c00
++CONFIG_DEBUG_UART_CLOCK=50000000
++CONFIG_SYS_LOAD_ADDR=0x83000000
++CONFIG_ARCH_MTMIPS=y
++CONFIG_SOC_MT7621=y
++# CONFIG_MIPS_CACHE_SETUP is not set
++# CONFIG_MIPS_CACHE_DISABLE is not set
++CONFIG_RESTORE_EXCEPTION_VECTOR_BASE=y
++CONFIG_MIPS_BOOT_FDT=y
++CONFIG_DEBUG_UART=y
++CONFIG_TPL_SYS_MALLOC_F_LEN=0x1000
++CONFIG_FIT=y
++# CONFIG_ARCH_FIXUP_FDT_MEMORY is not set
++CONFIG_SYS_CONSOLE_INFO_QUIET=y
++CONFIG_SPL_SYS_MALLOC_SIMPLE=y
++CONFIG_SPL_NOR_SUPPORT=y
++CONFIG_TPL=y
++# CONFIG_TPL_FRAMEWORK is not set
++# CONFIG_BOOTM_NETBSD is not set
++# CONFIG_BOOTM_PLAN9 is not set
++# CONFIG_BOOTM_RTEMS is not set
++# CONFIG_BOOTM_VXWORKS is not set
++# CONFIG_CMD_ELF is not set
++# CONFIG_CMD_XIMG is not set
++# CONFIG_CMD_CRC32 is not set
++# CONFIG_CMD_DM is not set
++CONFIG_CMD_GPIO=y
++# CONFIG_CMD_LOADS is not set
++CONFIG_CMD_MMC=y
++CONFIG_CMD_PART=y
++# CONFIG_CMD_PINMUX is not set
++CONFIG_CMD_SPI=y
++# CONFIG_CMD_NFS is not set
++CONFIG_DOS_PARTITION=y
++# CONFIG_SPL_DOS_PARTITION is not set
++# CONFIG_ISO_PARTITION is not set
++CONFIG_EFI_PARTITION=y
++# CONFIG_SPL_EFI_PARTITION is not set
++CONFIG_PARTITION_TYPE_GUID=y
++CONFIG_SYS_RELOC_GD_ENV_ADDR=y
++CONFIG_NET_RANDOM_ETHADDR=y
++# CONFIG_I2C is not set
++# CONFIG_INPUT is not set
++CONFIG_MMC=y
++# CONFIG_MMC_QUIRKS is not set
++# CONFIG_MMC_HW_PARTITIONING is not set
++CONFIG_MMC_MTK=y
++CONFIG_SF_DEFAULT_SPEED=20000000
++CONFIG_SPI_FLASH_BAR=y
++CONFIG_SPI_FLASH_EON=y
++CONFIG_SPI_FLASH_GIGADEVICE=y
++CONFIG_SPI_FLASH_ISSI=y
++CONFIG_SPI_FLASH_MACRONIX=y
++CONFIG_SPI_FLASH_SPANSION=y
++CONFIG_SPI_FLASH_STMICRO=y
++CONFIG_SPI_FLASH_WINBOND=y
++CONFIG_SPI_FLASH_XMC=y
++CONFIG_SPI_FLASH_XTX=y
++CONFIG_MEDIATEK_ETH=y
++CONFIG_PHY=y
++CONFIG_PHY_MTK_TPHY=y
++CONFIG_DEBUG_UART_SHIFT=2
++CONFIG_SPI=y
++CONFIG_MT7621_SPI=y
++CONFIG_SYSRESET=y
++CONFIG_SYSRESET_RESETCTL=y
++CONFIG_WDT=y
++CONFIG_WDT_MT7621=y
++# CONFIG_BINMAN_FDT is not set
++CONFIG_LZMA=y
++# CONFIG_GZIP is not set
++CONFIG_SPL_LZMA=y
+-- 
+2.36.1
+

package/boot/uboot-mediatek/patches/001-mtk-0007-doc-mediatek-add-documentation-for-mt7621-reference-.patch

@@ -0,0 +1,104 @@
+From 3fed02d930597c53f1c8500aff14581bb87a1e3d Mon Sep 17 00:00:00 2001
+From: Weijie Gao <[email protected]>
+Date: Fri, 20 May 2022 11:22:31 +0800
+Subject: [PATCH 07/25] doc: mediatek: add documentation for mt7621 reference
+ boards
+
+The MT7621 requires external binary blob being executed during u-boot's
+boot-up flow. It's necessary to provide a guide here for users to correctly
+build the u-boot.
+
+Reviewed-by: Daniel Schwierzeck <[email protected]>
+Signed-off-by: Weijie Gao <[email protected]>
+---
+ doc/board/index.rst           |  1 +
+ doc/board/mediatek/index.rst  |  9 +++++++
+ doc/board/mediatek/mt7621.rst | 48 +++++++++++++++++++++++++++++++++++
+ 3 files changed, 58 insertions(+)
+ create mode 100644 doc/board/mediatek/index.rst
+ create mode 100644 doc/board/mediatek/mt7621.rst
+
+diff --git a/doc/board/index.rst b/doc/board/index.rst
+index f90a9cad45..01b99f9cf5 100644
+--- a/doc/board/index.rst
++++ b/doc/board/index.rst
+@@ -23,6 +23,7 @@ Board-specific doc
+    highbank/index
+    intel/index
+    kontron/index
++   mediatek/index
+    microchip/index
+    nokia/index
+    nxp/index
+diff --git a/doc/board/mediatek/index.rst b/doc/board/mediatek/index.rst
+new file mode 100644
+index 0000000000..38cd8cb5b2
+--- /dev/null
++++ b/doc/board/mediatek/index.rst
+@@ -0,0 +1,9 @@
++.. SPDX-License-Identifier: GPL-2.0+
++
++Mediatek
++=========
++
++.. toctree::
++   :maxdepth: 2
++
++   mt7621
+diff --git a/doc/board/mediatek/mt7621.rst b/doc/board/mediatek/mt7621.rst
+new file mode 100644
+index 0000000000..1662255546
+--- /dev/null
++++ b/doc/board/mediatek/mt7621.rst
+@@ -0,0 +1,48 @@
++.. SPDX-License-Identifier: GPL-2.0
++
++mt7621_rfb/mt7621_nand_rfb
++==========================
++
++U-Boot for the MediaTek MT7621 boards
++
++Quick Start
++-----------
++
++- Get the DDR initialization binary blob
++- Configure CPU and DDR parameters
++- Build U-Boot
++
++Get the DDR initialization binary blob
++--------------------------------------
++
++Download one from:
++ - https://raw.githubusercontent.com/mtk-openwrt/mt7621-lowlevel-preloader/master/mt7621_stage_sram.bin
++ - https://raw.githubusercontent.com/mtk-openwrt/mt7621-lowlevel-preloader/master/mt7621_stage_sram_noprint.bin
++
++mt7621_stage_sram_noprint.bin has removed all output logs. To use this one,
++download and rename it to mt7621_stage_sram.bin
++
++Put the binary blob to the u-boot build directory.
++
++Configure CPU and DDR parameters
++--------------------------------
++
++menuconfig > MIPS architecture > MediaTek MIPS platforms > CPU & DDR configuration
++
++Select the correct DDR timing parameters for your board. The size shown here
++must match the DDR size of you board.
++
++The frequency of CPU and DDR can also be adjusted.
++
++Build U-Boot
++------------
++
++.. code-block:: bash
++
++   $ export CROSS_COMPILE=mipsel-linux-
++   $ make O=build mt7621_rfb_defconfig # or mt7621_nand_rfb_defconfig
++   $ cp mt7621_stage_sram.bin ./build/mt7621_stage_sram.bin
++   $ # or cp mt7621_stage_sram_noprint.bin ./build/mt7621_stage_sram.bin
++   $ make O=build
++
++Burn the u-boot-mt7621.bin to the SPI-NOR or NAND flash.
+-- 
+2.36.1
+

package/boot/uboot-mediatek/patches/001-mtk-0008-clk-mtmips-add-clock-driver-for-MediaTek-MT7621-SoC.patch

@@ -0,0 +1,378 @@
+From c2e579662748cb5d3bf3e31f58d99c4db4d102c1 Mon Sep 17 00:00:00 2001
+From: Weijie Gao <[email protected]>
+Date: Fri, 20 May 2022 11:22:36 +0800
+Subject: [PATCH 08/25] clk: mtmips: add clock driver for MediaTek MT7621 SoC
+
+This patch adds a clock driver for MediaTek MT7621 SoC.
+This driver provides clock gate control as well as getting clock frequency
+for CPU/SYS/XTAL and some peripherals.
+
+Reviewed-by: Sean Anderson <[email protected]>
+Signed-off-by: Weijie Gao <[email protected]>
+---
+ drivers/clk/mtmips/Makefile            |   1 +
+ drivers/clk/mtmips/clk-mt7621.c        | 288 +++++++++++++++++++++++++
+ include/dt-bindings/clock/mt7621-clk.h |  46 ++++
+ 3 files changed, 335 insertions(+)
+ create mode 100644 drivers/clk/mtmips/clk-mt7621.c
+ create mode 100644 include/dt-bindings/clock/mt7621-clk.h
+
+diff --git a/drivers/clk/mtmips/Makefile b/drivers/clk/mtmips/Makefile
+index 732e7f2545..ee8b5afe87 100644
+--- a/drivers/clk/mtmips/Makefile
++++ b/drivers/clk/mtmips/Makefile
+@@ -1,4 +1,5 @@
+ # SPDX-License-Identifier: GPL-2.0
+ 
+ obj-$(CONFIG_SOC_MT7620) += clk-mt7620.o
++obj-$(CONFIG_SOC_MT7621) += clk-mt7621.o
+ obj-$(CONFIG_SOC_MT7628) += clk-mt7628.o
+diff --git a/drivers/clk/mtmips/clk-mt7621.c b/drivers/clk/mtmips/clk-mt7621.c
+new file mode 100644
+index 0000000000..03363b70d7
+--- /dev/null
++++ b/drivers/clk/mtmips/clk-mt7621.c
+@@ -0,0 +1,288 @@
++// SPDX-License-Identifier: GPL-2.0
++/*
++ * Copyright (C) 2022 MediaTek Inc. All rights reserved.
++ *
++ * Author: Weijie Gao <[email protected]>
++ */
++
++#include <clk-uclass.h>
++#include <dm.h>
++#include <dm/device_compat.h>
++#include <regmap.h>
++#include <syscon.h>
++#include <dt-bindings/clock/mt7621-clk.h>
++#include <linux/io.h>
++#include <linux/bitops.h>
++#include <linux/bitfield.h>
++
++#define SYSC_MAP_SIZE			0x100
++#define MEMC_MAP_SIZE			0x1000
++
++/* SYSC */
++#define SYSCFG0_REG			0x10
++#define XTAL_MODE_SEL			GENMASK(8, 6)
++
++#define CLKCFG0_REG			0x2c
++#define CPU_CLK_SEL			GENMASK(31, 30)
++#define PERI_CLK_SEL			BIT(4)
++
++#define CLKCFG1_REG			0x30
++
++#define CUR_CLK_STS_REG			0x44
++#define CUR_CPU_FDIV			GENMASK(12, 8)
++#define CUR_CPU_FFRAC			GENMASK(4, 0)
++
++/* MEMC */
++#define MEMPLL1_REG			0x0604
++#define RG_MEPL_DIV2_SEL		GENMASK(2, 1)
++
++#define MEMPLL6_REG			0x0618
++#define MEMPLL18_REG			0x0648
++#define RG_MEPL_PREDIV			GENMASK(13, 12)
++#define RG_MEPL_FBDIV			GENMASK(10, 4)
++
++/* Fixed 500M clock */
++#define GMPLL_CLK			500000000
++
++struct mt7621_clk_priv {
++	void __iomem *sysc_base;
++	int cpu_clk;
++	int ddr_clk;
++	int sys_clk;
++	int xtal_clk;
++};
++
++enum mt7621_clk_src {
++	CLK_SRC_CPU,
++	CLK_SRC_DDR,
++	CLK_SRC_SYS,
++	CLK_SRC_XTAL,
++	CLK_SRC_PERI,
++	CLK_SRC_125M,
++	CLK_SRC_150M,
++	CLK_SRC_250M,
++	CLK_SRC_270M,
++
++	__CLK_SRC_MAX
++};
++
++struct mt7621_clk_map {
++	u32 cgbit;
++	enum mt7621_clk_src clksrc;
++};
++
++#define CLK_MAP(_id, _cg, _src) \
++	[_id] = { .cgbit = (_cg), .clksrc = (_src) }
++
++#define CLK_MAP_SRC(_id, _src) \
++	[_id] = { .cgbit = UINT32_MAX, .clksrc = (_src) }
++
++static const struct mt7621_clk_map mt7621_clk_mappings[] = {
++	CLK_MAP_SRC(MT7621_CLK_XTAL, CLK_SRC_XTAL),
++	CLK_MAP_SRC(MT7621_CLK_CPU, CLK_SRC_CPU),
++	CLK_MAP_SRC(MT7621_CLK_BUS, CLK_SRC_SYS),
++	CLK_MAP_SRC(MT7621_CLK_50M, CLK_SRC_PERI),
++	CLK_MAP_SRC(MT7621_CLK_125M, CLK_SRC_125M),
++	CLK_MAP_SRC(MT7621_CLK_150M, CLK_SRC_150M),
++	CLK_MAP_SRC(MT7621_CLK_250M, CLK_SRC_250M),
++	CLK_MAP_SRC(MT7621_CLK_270M, CLK_SRC_270M),
++
++	CLK_MAP(MT7621_CLK_HSDMA, 5, CLK_SRC_150M),
++	CLK_MAP(MT7621_CLK_FE, 6, CLK_SRC_250M),
++	CLK_MAP(MT7621_CLK_SP_DIVTX, 7, CLK_SRC_270M),
++	CLK_MAP(MT7621_CLK_TIMER, 8, CLK_SRC_PERI),
++	CLK_MAP(MT7621_CLK_PCM, 11, CLK_SRC_270M),
++	CLK_MAP(MT7621_CLK_PIO, 13, CLK_SRC_PERI),
++	CLK_MAP(MT7621_CLK_GDMA, 14, CLK_SRC_SYS),
++	CLK_MAP(MT7621_CLK_NAND, 15, CLK_SRC_125M),
++	CLK_MAP(MT7621_CLK_I2C, 16, CLK_SRC_PERI),
++	CLK_MAP(MT7621_CLK_I2S, 17, CLK_SRC_270M),
++	CLK_MAP(MT7621_CLK_SPI, 18, CLK_SRC_SYS),
++	CLK_MAP(MT7621_CLK_UART1, 19, CLK_SRC_PERI),
++	CLK_MAP(MT7621_CLK_UART2, 20, CLK_SRC_PERI),
++	CLK_MAP(MT7621_CLK_UART3, 21, CLK_SRC_PERI),
++	CLK_MAP(MT7621_CLK_ETH, 23, CLK_SRC_PERI),
++	CLK_MAP(MT7621_CLK_PCIE0, 24, CLK_SRC_125M),
++	CLK_MAP(MT7621_CLK_PCIE1, 25, CLK_SRC_125M),
++	CLK_MAP(MT7621_CLK_PCIE2, 26, CLK_SRC_125M),
++	CLK_MAP(MT7621_CLK_CRYPTO, 29, CLK_SRC_250M),
++	CLK_MAP(MT7621_CLK_SHXC, 30, CLK_SRC_PERI),
++
++	CLK_MAP_SRC(MT7621_CLK_MAX, __CLK_SRC_MAX),
++
++	CLK_MAP_SRC(MT7621_CLK_DDR, CLK_SRC_DDR),
++};
++
++static ulong mt7621_clk_get_rate(struct clk *clk)
++{
++	struct mt7621_clk_priv *priv = dev_get_priv(clk->dev);
++	u32 val;
++
++	switch (mt7621_clk_mappings[clk->id].clksrc) {
++	case CLK_SRC_CPU:
++		return priv->cpu_clk;
++	case CLK_SRC_DDR:
++		return priv->ddr_clk;
++	case CLK_SRC_SYS:
++		return priv->sys_clk;
++	case CLK_SRC_XTAL:
++		return priv->xtal_clk;
++	case CLK_SRC_PERI:
++		val = readl(priv->sysc_base + CLKCFG0_REG);
++		if (val & PERI_CLK_SEL)
++			return priv->xtal_clk;
++		else
++			return GMPLL_CLK / 10;
++	case CLK_SRC_125M:
++		return 125000000;
++	case CLK_SRC_150M:
++		return 150000000;
++	case CLK_SRC_250M:
++		return 250000000;
++	case CLK_SRC_270M:
++		return 270000000;
++	default:
++		return 0;
++	}
++}
++
++static int mt7621_clk_enable(struct clk *clk)
++{
++	struct mt7621_clk_priv *priv = dev_get_priv(clk->dev);
++	u32 cgbit;
++
++	cgbit = mt7621_clk_mappings[clk->id].cgbit;
++	if (cgbit == UINT32_MAX)
++		return -ENOSYS;
++
++	setbits_32(priv->sysc_base + CLKCFG1_REG, BIT(cgbit));
++
++	return 0;
++}
++
++static int mt7621_clk_disable(struct clk *clk)
++{
++	struct mt7621_clk_priv *priv = dev_get_priv(clk->dev);
++	u32 cgbit;
++
++	cgbit = mt7621_clk_mappings[clk->id].cgbit;
++	if (cgbit == UINT32_MAX)
++		return -ENOSYS;
++
++	clrbits_32(priv->sysc_base + CLKCFG1_REG, BIT(cgbit));
++
++	return 0;
++}
++
++static int mt7621_clk_request(struct clk *clk)
++{
++	if (clk->id >= ARRAY_SIZE(mt7621_clk_mappings))
++		return -EINVAL;
++	return 0;
++}
++
++const struct clk_ops mt7621_clk_ops = {
++	.request = mt7621_clk_request,
++	.enable = mt7621_clk_enable,
++	.disable = mt7621_clk_disable,
++	.get_rate = mt7621_clk_get_rate,
++};
++
++static void mt7621_get_clocks(struct mt7621_clk_priv *priv, struct regmap *memc)
++{
++	u32 bs, xtal_sel, clkcfg0, cur_clk, mempll, dividx, fb;
++	u32 xtal_clk, xtal_div, ffiv, ffrac, cpu_clk, ddr_clk;
++	static const u32 xtal_div_tbl[] = {0, 1, 2, 2};
++
++	bs = readl(priv->sysc_base + SYSCFG0_REG);
++	clkcfg0 = readl(priv->sysc_base + CLKCFG0_REG);
++	cur_clk = readl(priv->sysc_base + CUR_CLK_STS_REG);
++
++	xtal_sel = FIELD_GET(XTAL_MODE_SEL, bs);
++
++	if (xtal_sel <= 2)
++		xtal_clk = 20 * 1000 * 1000;
++	else if (xtal_sel <= 5)
++		xtal_clk = 40 * 1000 * 1000;
++	else
++		xtal_clk = 25 * 1000 * 1000;
++
++	switch (FIELD_GET(CPU_CLK_SEL, clkcfg0)) {
++	case 0:
++		cpu_clk = GMPLL_CLK;
++		break;
++	case 1:
++		regmap_read(memc, MEMPLL18_REG, &mempll);
++		dividx = FIELD_GET(RG_MEPL_PREDIV, mempll);
++		fb = FIELD_GET(RG_MEPL_FBDIV, mempll);
++		xtal_div = 1 << xtal_div_tbl[dividx];
++		cpu_clk = (fb + 1) * xtal_clk / xtal_div;
++		break;
++	default:
++		cpu_clk = xtal_clk;
++	}
++
++	ffiv = FIELD_GET(CUR_CPU_FDIV, cur_clk);
++	ffrac = FIELD_GET(CUR_CPU_FFRAC, cur_clk);
++	cpu_clk = cpu_clk / ffiv * ffrac;
++
++	regmap_read(memc, MEMPLL6_REG, &mempll);
++	dividx = FIELD_GET(RG_MEPL_PREDIV, mempll);
++	fb = FIELD_GET(RG_MEPL_FBDIV, mempll);
++	xtal_div = 1 << xtal_div_tbl[dividx];
++	ddr_clk = fb * xtal_clk / xtal_div;
++
++	regmap_read(memc, MEMPLL1_REG, &bs);
++	if (!FIELD_GET(RG_MEPL_DIV2_SEL, bs))
++		ddr_clk *= 2;
++
++	priv->cpu_clk = cpu_clk;
++	priv->sys_clk = cpu_clk / 4;
++	priv->ddr_clk = ddr_clk;
++	priv->xtal_clk = xtal_clk;
++}
++
++static int mt7621_clk_probe(struct udevice *dev)
++{
++	struct mt7621_clk_priv *priv = dev_get_priv(dev);
++	struct ofnode_phandle_args args;
++	struct udevice *pdev;
++	struct regmap *memc;
++	int ret;
++
++	pdev = dev_get_parent(dev);
++	if (!pdev)
++		return -ENODEV;
++
++	priv->sysc_base = dev_remap_addr(pdev);
++	if (!priv->sysc_base)
++		return -EINVAL;
++
++	/* get corresponding memc phandle */
++	ret = dev_read_phandle_with_args(dev, "mediatek,memc", NULL, 0, 0,
++					 &args);
++	if (ret)
++		return ret;
++
++	memc = syscon_node_to_regmap(args.node);
++	if (IS_ERR(memc))
++		return PTR_ERR(memc);
++
++	mt7621_get_clocks(priv, memc);
++
++	return 0;
++}
++
++static const struct udevice_id mt7621_clk_ids[] = {
++	{ .compatible = "mediatek,mt7621-clk" },
++	{ }
++};
++
++U_BOOT_DRIVER(mt7621_clk) = {
++	.name = "mt7621-clk",
++	.id = UCLASS_CLK,
++	.of_match = mt7621_clk_ids,
++	.probe = mt7621_clk_probe,
++	.priv_auto = sizeof(struct mt7621_clk_priv),
++	.ops = &mt7621_clk_ops,
++};
+diff --git a/include/dt-bindings/clock/mt7621-clk.h b/include/dt-bindings/clock/mt7621-clk.h
+new file mode 100644
+index 0000000000..978c67951b
+--- /dev/null
++++ b/include/dt-bindings/clock/mt7621-clk.h
+@@ -0,0 +1,46 @@
++/* SPDX-License-Identifier: GPL-2.0 */
++/*
++ * Copyright (C) 2022 MediaTek Inc. All rights reserved.
++ *
++ * Author: Weijie Gao <[email protected]>
++ */
++
++#ifndef _DT_BINDINGS_MT7621_CLK_H_
++#define _DT_BINDINGS_MT7621_CLK_H_
++
++#define MT7621_CLK_XTAL		0
++#define MT7621_CLK_CPU		1
++#define MT7621_CLK_BUS		2
++#define MT7621_CLK_50M		3
++#define MT7621_CLK_125M		4
++#define MT7621_CLK_150M		5
++#define MT7621_CLK_250M		6
++#define MT7621_CLK_270M		7
++
++#define MT7621_CLK_HSDMA	8
++#define MT7621_CLK_FE		9
++#define MT7621_CLK_SP_DIVTX	10
++#define MT7621_CLK_TIMER	11
++#define MT7621_CLK_PCM		12
++#define MT7621_CLK_PIO		13
++#define MT7621_CLK_GDMA		14
++#define MT7621_CLK_NAND		15
++#define MT7621_CLK_I2C		16
++#define MT7621_CLK_I2S		17
++#define MT7621_CLK_SPI		18
++#define MT7621_CLK_UART1	19
++#define MT7621_CLK_UART2	20
++#define MT7621_CLK_UART3	21
++#define MT7621_CLK_ETH		22
++#define MT7621_CLK_PCIE0	23
++#define MT7621_CLK_PCIE1	24
++#define MT7621_CLK_PCIE2	25
++#define MT7621_CLK_CRYPTO	26
++#define MT7621_CLK_SHXC		27
++
++#define MT7621_CLK_MAX		28
++
++/* for u-boot only */
++#define MT7621_CLK_DDR		29
++
++#endif /* _DT_BINDINGS_MT7621_CLK_H_ */
+-- 
+2.36.1
+

package/boot/uboot-mediatek/patches/001-mtk-0009-reset-mtmips-add-reset-controller-support-for-MediaT.patch

@@ -0,0 +1,62 @@
+From 03035a6566300808c8845799b2f9ceca471aa61a Mon Sep 17 00:00:00 2001
+From: Weijie Gao <[email protected]>
+Date: Fri, 20 May 2022 11:22:41 +0800
+Subject: [PATCH 09/25] reset: mtmips: add reset controller support for
+ MediaTek MT7621 SoC
+
+This patch adds reset controller bits definition header file for MediaTek
+MT7621 SoC
+
+Signed-off-by: Weijie Gao <[email protected]>
+---
+ include/dt-bindings/reset/mt7621-reset.h | 38 ++++++++++++++++++++++++
+ 1 file changed, 38 insertions(+)
+ create mode 100644 include/dt-bindings/reset/mt7621-reset.h
+
+diff --git a/include/dt-bindings/reset/mt7621-reset.h b/include/dt-bindings/reset/mt7621-reset.h
+new file mode 100644
+index 0000000000..8e4341f040
+--- /dev/null
++++ b/include/dt-bindings/reset/mt7621-reset.h
+@@ -0,0 +1,38 @@
++/* SPDX-License-Identifier: GPL-2.0 */
++/*
++ * Copyright (C) 2022 MediaTek Inc. All rights reserved.
++ *
++ * Author: Weijie Gao <[email protected]>
++ */
++
++#ifndef _DT_BINDINGS_MT7621_RESET_H_
++#define _DT_BINDINGS_MT7621_RESET_H_
++
++#define RST_PPE			31
++#define RST_SDXC		30
++#define RST_CRYPTO		29
++#define RST_AUX_STCK		28
++#define RST_PCIE2		26
++#define RST_PCIE1		25
++#define RST_PCIE0		24
++#define RST_GMAC		23
++#define RST_UART3		21
++#define RST_UART2		20
++#define RST_UART1		19
++#define RST_SPI			18
++#define RST_I2S			17
++#define RST_I2C			16
++#define RST_NFI			15
++#define RST_GDMA		14
++#define RST_PIO			13
++#define RST_PCM			11
++#define RST_MC			10
++#define RST_INTC		9
++#define RST_TIMER		8
++#define RST_SPDIFTX		7
++#define RST_FE			6
++#define RST_HSDMA		5
++#define RST_MCM			2
++#define RST_SYS			0
++
++#endif /* _DT_BINDINGS_MT7621_RESET_H_ */
+-- 
+2.36.1
+

package/boot/uboot-mediatek/patches/001-mtk-0010-pinctrl-mtmips-add-support-for-MediaTek-MT7621-SoC.patch

@@ -0,0 +1,409 @@
+From 3cf9e2daca330a0ba89d3793ceb09037c788db46 Mon Sep 17 00:00:00 2001
+From: Weijie Gao <[email protected]>
+Date: Fri, 20 May 2022 11:22:49 +0800
+Subject: [PATCH 10/25] pinctrl: mtmips: add support for MediaTek MT7621 SoC
+
+This patch adds pinctrl support for MediaTek MT7621 SoC.
+The MT7621 SoC supports pinconf, but it is not the same as mt7628.
+
+Reviewed-by: Daniel Schwierzeck <[email protected]>
+Signed-off-by: Weijie Gao <[email protected]>
+---
+ drivers/pinctrl/mtmips/Kconfig                |   9 +
+ drivers/pinctrl/mtmips/Makefile               |   1 +
+ drivers/pinctrl/mtmips/pinctrl-mt7621.c       | 306 ++++++++++++++++++
+ .../pinctrl/mtmips/pinctrl-mtmips-common.c    |   4 +-
+ .../pinctrl/mtmips/pinctrl-mtmips-common.h    |  12 +
+ 5 files changed, 330 insertions(+), 2 deletions(-)
+ create mode 100644 drivers/pinctrl/mtmips/pinctrl-mt7621.c
+
+diff --git a/drivers/pinctrl/mtmips/Kconfig b/drivers/pinctrl/mtmips/Kconfig
+index 844d5b743f..456f3ea25d 100644
+--- a/drivers/pinctrl/mtmips/Kconfig
++++ b/drivers/pinctrl/mtmips/Kconfig
+@@ -12,6 +12,15 @@ config PINCTRL_MT7620
+ 	  The driver is controlled by a device tree node which contains
+ 	  the pin mux functions for each available pin groups.
+ 
++config PINCTRL_MT7621
++	bool "MediaTek MT7621 pin control driver"
++	select PINCTRL_MTMIPS
++	depends on SOC_MT7621 && PINCTRL_GENERIC
++	help
++	  Support pin multiplexing control on MediaTek MT7621.
++	  The driver is controlled by a device tree node which contains
++	  the pin mux functions for each available pin groups.
++
+ config PINCTRL_MT7628
+ 	bool "MediaTek MT7628 pin control driver"
+ 	select PINCTRL_MTMIPS
+diff --git a/drivers/pinctrl/mtmips/Makefile b/drivers/pinctrl/mtmips/Makefile
+index ba945a89a7..8fece4f5fa 100644
+--- a/drivers/pinctrl/mtmips/Makefile
++++ b/drivers/pinctrl/mtmips/Makefile
+@@ -5,4 +5,5 @@ obj-$(CONFIG_PINCTRL_MTMIPS) += pinctrl-mtmips-common.o
+ 
+ # SoC Drivers
+ obj-$(CONFIG_PINCTRL_MT7620) += pinctrl-mt7620.o
++obj-$(CONFIG_PINCTRL_MT7621) += pinctrl-mt7621.o
+ obj-$(CONFIG_PINCTRL_MT7628) += pinctrl-mt7628.o
+diff --git a/drivers/pinctrl/mtmips/pinctrl-mt7621.c b/drivers/pinctrl/mtmips/pinctrl-mt7621.c
+new file mode 100644
+index 0000000000..3e98a01bad
+--- /dev/null
++++ b/drivers/pinctrl/mtmips/pinctrl-mt7621.c
+@@ -0,0 +1,306 @@
++// SPDX-License-Identifier: GPL-2.0
++/*
++ * Copyright (C) 2022 MediaTek Inc. All rights reserved.
++ *
++ * Author: Weijie Gao <[email protected]>
++ */
++
++#include <dm.h>
++#include <dm/pinctrl.h>
++#include <dm/device_compat.h>
++#include <linux/bitops.h>
++#include <linux/io.h>
++
++#include "pinctrl-mtmips-common.h"
++
++#define SYSC_MAP_SIZE			0x100
++
++#define PAD_UART1_GPIO0_OFS		0x00
++#define PAD_UART3_I2C_OFS		0x04
++#define PAD_UART2_JTAG_OFS		0x08
++#define PAD_PERST_WDT_OFS		0x0c
++#define PAD_RGMII2_MDIO_OFS		0x10
++#define PAD_SDXC_SPI_OFS		0x14
++#define GPIOMODE_OFS			0x18
++#define PAD_BOPT_ESWINT_OFS		0x28
++
++#define ESWINT_SHIFT			20
++#define SDXC_SHIFT			18
++#define SPI_SHIFT			16
++#define RGMII2_SHIFT			15
++#define RGMII1_SHIFT			14
++#define MDIO_SHIFT			12
++#define PERST_SHIFT			10
++#define WDT_SHIFT			8
++#define JTAG_SHIFT			7
++#define UART2_SHIFT			5
++#define UART3_SHIFT			3
++#define I2C_SHIFT			2
++#define UART1_SHIFT			1
++#define GPIO0_SHIFT			0 /* Dummy */
++
++#define GM4_MASK			3
++
++#define E4_E2_M				0x03
++#define E4_E2_S				4
++#define PULL_UP				BIT(3)
++#define PULL_DOWN			BIT(2)
++#define SMT				BIT(1)
++#define SR				BIT(0)
++
++struct mt7621_pinctrl_priv {
++	struct mtmips_pinctrl_priv mp;
++};
++
++#if CONFIG_IS_ENABLED(PINMUX)
++static const struct mtmips_pmx_func esw_int_grp[] = {
++	FUNC("gpio", 1),
++	FUNC("esw int", 0),
++};
++
++static const struct mtmips_pmx_func sdxc_grp[] = {
++	FUNC("nand", 2),
++	FUNC("gpio", 1),
++	FUNC("sdxc", 0),
++};
++
++static const struct mtmips_pmx_func spi_grp[] = {
++	FUNC("nand", 2),
++	FUNC("gpio", 1),
++	FUNC("spi", 0),
++};
++
++static const struct mtmips_pmx_func rgmii2_grp[] = {
++	FUNC("gpio", 1),
++	FUNC("rgmii", 0),
++};
++
++static const struct mtmips_pmx_func rgmii1_grp[] = {
++	FUNC("gpio", 1),
++	FUNC("rgmii", 0),
++};
++
++static const struct mtmips_pmx_func mdio_grp[] = {
++	FUNC("gpio", 1),
++	FUNC("mdio", 0),
++};
++
++static const struct mtmips_pmx_func perst_grp[] = {
++	FUNC("refclk", 2),
++	FUNC("gpio", 1),
++	FUNC("pcie reset", 0),
++};
++
++static const struct mtmips_pmx_func wdt_grp[] = {
++	FUNC("refclk", 2),
++	FUNC("gpio", 1),
++	FUNC("wdt rst", 0),
++};
++
++static const struct mtmips_pmx_func jtag_grp[] = {
++	FUNC("gpio", 1),
++	FUNC("jtag", 0),
++};
++
++static const struct mtmips_pmx_func uart2_grp[] = {
++	FUNC("spdif", 3),
++	FUNC("pcm", 2),
++	FUNC("gpio", 1),
++	FUNC("uart", 0),
++};
++
++static const struct mtmips_pmx_func uart3_grp[] = {
++	FUNC("spdif", 3),
++	FUNC("i2s", 2),
++	FUNC("gpio", 1),
++	FUNC("uart", 0),
++};
++
++static const struct mtmips_pmx_func i2c_grp[] = {
++	FUNC("gpio", 1),
++	FUNC("i2c", 0),
++};
++
++static const struct mtmips_pmx_func uart1_grp[] = {
++	FUNC("gpio", 1),
++	FUNC("uart", 0),
++};
++
++static const struct mtmips_pmx_func gpio0_grp[] = {
++	FUNC("gpio", 0),
++};
++
++static const struct mtmips_pmx_group mt7621_pmx_data[] = {
++	GRP_PCONF("esw int", esw_int_grp, GPIOMODE_OFS, ESWINT_SHIFT, 1,
++		  PAD_BOPT_ESWINT_OFS, 0),
++	GRP_PCONF("sdxc", sdxc_grp, GPIOMODE_OFS, SDXC_SHIFT, GM4_MASK,
++		  PAD_SDXC_SPI_OFS, 16),
++	GRP_PCONF("spi", spi_grp, GPIOMODE_OFS, SPI_SHIFT, GM4_MASK,
++		  PAD_SDXC_SPI_OFS, 0),
++	GRP_PCONF("rgmii2", rgmii2_grp, GPIOMODE_OFS, RGMII2_SHIFT, 1,
++		  PAD_RGMII2_MDIO_OFS, 16),
++	GRP("rgmii1", rgmii1_grp, GPIOMODE_OFS, RGMII1_SHIFT, 1),
++	GRP_PCONF("mdio", mdio_grp, GPIOMODE_OFS, MDIO_SHIFT, GM4_MASK,
++		  PAD_RGMII2_MDIO_OFS, 0),
++	GRP_PCONF("pcie reset", perst_grp, GPIOMODE_OFS, PERST_SHIFT, GM4_MASK,
++		  PAD_PERST_WDT_OFS, 16),
++	GRP_PCONF("wdt", wdt_grp, GPIOMODE_OFS, WDT_SHIFT, GM4_MASK,
++		  PAD_PERST_WDT_OFS, 0),
++	GRP_PCONF("jtag", jtag_grp, GPIOMODE_OFS, JTAG_SHIFT, 1,
++		  PAD_UART2_JTAG_OFS, 16),
++	GRP_PCONF("uart2", uart2_grp, GPIOMODE_OFS, UART2_SHIFT, GM4_MASK,
++		  PAD_UART2_JTAG_OFS, 0),
++	GRP_PCONF("uart3", uart3_grp, GPIOMODE_OFS, UART3_SHIFT, GM4_MASK,
++		  PAD_UART3_I2C_OFS, 16),
++	GRP_PCONF("i2c", i2c_grp, GPIOMODE_OFS, I2C_SHIFT, 1,
++		  PAD_UART3_I2C_OFS, 0),
++	GRP_PCONF("uart1", uart1_grp, GPIOMODE_OFS, UART1_SHIFT, 1,
++		  PAD_UART1_GPIO0_OFS, 16),
++	GRP_PCONF("gpio0", gpio0_grp, GPIOMODE_OFS, GPIO0_SHIFT, 1,
++		  PAD_UART1_GPIO0_OFS, 0),
++};
++
++static int mt7621_get_groups_count(struct udevice *dev)
++{
++	return ARRAY_SIZE(mt7621_pmx_data);
++}
++
++static const char *mt7621_get_group_name(struct udevice *dev,
++					 unsigned int selector)
++{
++	return mt7621_pmx_data[selector].name;
++}
++#endif /* CONFIG_IS_ENABLED(PINMUX) */
++
++#if CONFIG_IS_ENABLED(PINCONF)
++static const struct pinconf_param mt7621_conf_params[] = {
++	{ "bias-disable", PIN_CONFIG_BIAS_DISABLE, 0 },
++	{ "bias-pull-up", PIN_CONFIG_BIAS_PULL_UP, 1 },
++	{ "bias-pull-down", PIN_CONFIG_BIAS_PULL_DOWN, 1 },
++	{ "input-schmitt-enable", PIN_CONFIG_INPUT_SCHMITT_ENABLE, 1 },
++	{ "input-schmitt-disable", PIN_CONFIG_INPUT_SCHMITT_ENABLE, 0 },
++	{ "drive-strength", PIN_CONFIG_DRIVE_STRENGTH, 0 },
++	{ "slew-rate", PIN_CONFIG_SLEW_RATE, 0 },
++};
++
++static const u32 mt7621_pconf_drv_strength_tbl[] = {2, 4, 6, 8};
++
++static int mt7621_pinconf_group_set(struct udevice *dev,
++				    unsigned int group_selector,
++				    unsigned int param, unsigned int arg)
++{
++	struct mt7621_pinctrl_priv *priv = dev_get_priv(dev);
++	const struct mtmips_pmx_group *grp = &mt7621_pmx_data[group_selector];
++	u32 clr = 0, set = 0;
++	int i;
++
++	if (!grp->pconf_avail)
++		return 0;
++
++	switch (param) {
++	case PIN_CONFIG_BIAS_DISABLE:
++		clr = PULL_UP | PULL_DOWN;
++		break;
++
++	case PIN_CONFIG_BIAS_PULL_UP:
++		clr = PULL_DOWN;
++		set = PULL_UP;
++		break;
++
++	case PIN_CONFIG_BIAS_PULL_DOWN:
++		clr = PULL_UP;
++		set = PULL_DOWN;
++		break;
++
++	case PIN_CONFIG_INPUT_SCHMITT_ENABLE:
++		if (arg)
++			set = SMT;
++		else
++			clr = SMT;
++		break;
++
++	case PIN_CONFIG_DRIVE_STRENGTH:
++		for (i = 0; i < ARRAY_SIZE(mt7621_pconf_drv_strength_tbl); i++)
++			if (mt7621_pconf_drv_strength_tbl[i] == arg)
++				break;
++
++		if (i >= ARRAY_SIZE(mt7621_pconf_drv_strength_tbl))
++			return -EINVAL;
++
++		clr = E4_E2_M << E4_E2_S;
++		set = i << E4_E2_S;
++		break;
++
++	case PIN_CONFIG_SLEW_RATE:
++		if (arg)
++			set = SR;
++		else
++			clr = SR;
++		break;
++
++	default:
++		return -EINVAL;
++	}
++
++	mtmips_pinctrl_reg_set(&priv->mp, grp->pconf_reg, grp->pconf_shift,
++			       clr, set);
++
++	return 0;
++}
++#endif
++
++static int mt7621_pinctrl_probe(struct udevice *dev)
++{
++	struct mt7621_pinctrl_priv *priv = dev_get_priv(dev);
++	int ret = 0;
++
++#if CONFIG_IS_ENABLED(PINMUX)
++	ret = mtmips_pinctrl_probe(&priv->mp, ARRAY_SIZE(mt7621_pmx_data),
++				   mt7621_pmx_data);
++#endif /* CONFIG_IS_ENABLED(PINMUX) */
++
++	return ret;
++}
++
++static int mt7621_pinctrl_of_to_plat(struct udevice *dev)
++{
++	struct mt7621_pinctrl_priv *priv = dev_get_priv(dev);
++
++	priv->mp.base = (void __iomem *)dev_remap_addr_index(dev, 0);
++
++	if (!priv->mp.base)
++		return -EINVAL;
++
++	return 0;
++}
++
++static const struct pinctrl_ops mt7621_pinctrl_ops = {
++#if CONFIG_IS_ENABLED(PINMUX)
++	.get_groups_count = mt7621_get_groups_count,
++	.get_group_name = mt7621_get_group_name,
++	.get_functions_count = mtmips_get_functions_count,
++	.get_function_name = mtmips_get_function_name,
++	.pinmux_group_set = mtmips_pinmux_group_set,
++#endif /* CONFIG_IS_ENABLED(PINMUX) */
++#if CONFIG_IS_ENABLED(PINCONF)
++	.pinconf_num_params = ARRAY_SIZE(mt7621_conf_params),
++	.pinconf_params = mt7621_conf_params,
++	.pinconf_group_set = mt7621_pinconf_group_set,
++#endif /* CONFIG_IS_ENABLED(PINCONF) */
++	.set_state = pinctrl_generic_set_state,
++};
++
++static const struct udevice_id mt7621_pinctrl_ids[] = {
++	{ .compatible = "mediatek,mt7621-pinctrl" },
++	{ }
++};
++
++U_BOOT_DRIVER(mt7621_pinctrl) = {
++	.name = "mt7621-pinctrl",
++	.id = UCLASS_PINCTRL,
++	.of_match = mt7621_pinctrl_ids,
++	.of_to_plat = mt7621_pinctrl_of_to_plat,
++	.ops = &mt7621_pinctrl_ops,
++	.probe = mt7621_pinctrl_probe,
++	.priv_auto = sizeof(struct mt7621_pinctrl_priv),
++};
+diff --git a/drivers/pinctrl/mtmips/pinctrl-mtmips-common.c b/drivers/pinctrl/mtmips/pinctrl-mtmips-common.c
+index e361916eb2..869b781068 100644
+--- a/drivers/pinctrl/mtmips/pinctrl-mtmips-common.c
++++ b/drivers/pinctrl/mtmips/pinctrl-mtmips-common.c
+@@ -13,8 +13,8 @@
+ 
+ #include "pinctrl-mtmips-common.h"
+ 
+-static void mtmips_pinctrl_reg_set(struct mtmips_pinctrl_priv *priv,
+-				   u32 reg, u32 shift, u32 mask, u32 value)
++void mtmips_pinctrl_reg_set(struct mtmips_pinctrl_priv *priv,
++			    u32 reg, u32 shift, u32 mask, u32 value)
+ {
+ 	u32 val;
+ 
+diff --git a/drivers/pinctrl/mtmips/pinctrl-mtmips-common.h b/drivers/pinctrl/mtmips/pinctrl-mtmips-common.h
+index b51d8f009c..1f1023ef42 100644
+--- a/drivers/pinctrl/mtmips/pinctrl-mtmips-common.h
++++ b/drivers/pinctrl/mtmips/pinctrl-mtmips-common.h
+@@ -22,6 +22,10 @@ struct mtmips_pmx_group {
+ 	u32 shift;
+ 	char mask;
+ 
++	int pconf_avail;
++	u32 pconf_reg;
++	u32 pconf_shift;
++
+ 	int nfuncs;
+ 	const struct mtmips_pmx_func *funcs;
+ };
+@@ -42,6 +46,14 @@ struct mtmips_pinctrl_priv {
+ 	{ .name = (_name), .reg = (_reg), .shift = (_shift), .mask = (_mask), \
+ 	  .funcs = (_funcs), .nfuncs = ARRAY_SIZE(_funcs) }
+ 
++#define GRP_PCONF(_name, _funcs, _reg, _shift, _mask, _pconf_reg, _pconf_shift) \
++	{ .name = (_name), .reg = (_reg), .shift = (_shift), .mask = (_mask), \
++	  .funcs = (_funcs), .nfuncs = ARRAY_SIZE(_funcs), .pconf_avail = 1, \
++	  .pconf_reg = (_pconf_reg), .pconf_shift = (_pconf_shift) }
++
++void mtmips_pinctrl_reg_set(struct mtmips_pinctrl_priv *priv,
++			    u32 reg, u32 shift, u32 mask, u32 value);
++
+ int mtmips_get_functions_count(struct udevice *dev);
+ const char *mtmips_get_function_name(struct udevice *dev,
+ 				     unsigned int selector);
+-- 
+2.36.1
+

package/boot/uboot-mediatek/patches/001-mtk-0011-usb-xhci-mtk-add-support-for-MediaTek-MT7621-SoC.patch

@@ -0,0 +1,28 @@
+From ab59bb14a0efd40c12a967f73bd08ba2f27da3be Mon Sep 17 00:00:00 2001
+From: Weijie Gao <[email protected]>
+Date: Fri, 20 May 2022 11:22:56 +0800
+Subject: [PATCH 11/25] usb: xhci-mtk: add support for MediaTek MT7621 SoC
+
+This patch makes xhci-mtk driver available for MediaTek MT7621 SoC
+
+Signed-off-by: Weijie Gao <[email protected]>
+---
+ drivers/usb/host/Kconfig | 2 +-
+ 1 file changed, 1 insertion(+), 1 deletion(-)
+
+diff --git a/drivers/usb/host/Kconfig b/drivers/usb/host/Kconfig
+index 8f77412cc7..8f7bfe1602 100644
+--- a/drivers/usb/host/Kconfig
++++ b/drivers/usb/host/Kconfig
+@@ -34,7 +34,7 @@ config USB_XHCI_DWC3_OF_SIMPLE
+ 
+ config USB_XHCI_MTK
+ 	bool "Support for MediaTek on-chip xHCI USB controller"
+-	depends on ARCH_MEDIATEK
++	depends on ARCH_MEDIATEK || SOC_MT7621
+ 	help
+ 	  Enables support for the on-chip xHCI controller on MediaTek SoCs.
+ 
+-- 
+2.36.1
+

package/boot/uboot-mediatek/patches/001-mtk-0012-phy-mtk-tphy-add-support-for-MediaTek-MT7621-SoC.patch

@@ -0,0 +1,28 @@
+From 23c19fa476929b6e94cc7f1a55f5ed4d3ab03934 Mon Sep 17 00:00:00 2001
+From: Weijie Gao <[email protected]>
+Date: Fri, 20 May 2022 11:23:01 +0800
+Subject: [PATCH 12/25] phy: mtk-tphy: add support for MediaTek MT7621 SoC
+
+This patch makes mtk-tphy driver available for MediaTek MT7621 SoC
+
+Signed-off-by: Weijie Gao <[email protected]>
+---
+ drivers/phy/Kconfig | 2 +-
+ 1 file changed, 1 insertion(+), 1 deletion(-)
+
+diff --git a/drivers/phy/Kconfig b/drivers/phy/Kconfig
+index c01d9e09b9..1708d4f533 100644
+--- a/drivers/phy/Kconfig
++++ b/drivers/phy/Kconfig
+@@ -266,7 +266,7 @@ config MT76X8_USB_PHY
+ config PHY_MTK_TPHY
+ 	bool "MediaTek T-PHY Driver"
+ 	depends on PHY
+-	depends on ARCH_MEDIATEK
++	depends on ARCH_MEDIATEK || SOC_MT7621
+ 	help
+ 	  MediaTek T-PHY driver supports usb2.0, usb3.0 ports, PCIe and
+ 	  SATA, and meanwhile supports two version T-PHY which have
+-- 
+2.36.1
+

package/boot/uboot-mediatek/patches/001-mtk-0013-spi-add-support-for-MediaTek-MT7621-SoC.patch

@@ -0,0 +1,28 @@
+From 34b623ccfd135e846b8464729a8b0e8df4b77a66 Mon Sep 17 00:00:00 2001
+From: Weijie Gao <[email protected]>
+Date: Fri, 20 May 2022 11:23:08 +0800
+Subject: [PATCH 13/25] spi: add support for MediaTek MT7621 SoC
+
+This patch makes mt7621_spi driver available for MediaTek MT7621 SoC
+
+Signed-off-by: Weijie Gao <[email protected]>
+---
+ drivers/spi/Kconfig | 2 +-
+ 1 file changed, 1 insertion(+), 1 deletion(-)
+
+diff --git a/drivers/spi/Kconfig b/drivers/spi/Kconfig
+index a1e515cb2b..2923ed8db3 100644
+--- a/drivers/spi/Kconfig
++++ b/drivers/spi/Kconfig
+@@ -240,7 +240,7 @@ config MT7620_SPI
+ 
+ config MT7621_SPI
+ 	bool "MediaTek MT7621 SPI driver"
+-	depends on SOC_MT7628
++	depends on SOC_MT7621 || SOC_MT7628
+ 	help
+ 	  Enable the MT7621 SPI driver. This driver can be used to access
+ 	  the SPI NOR flash on platforms embedding this Ralink / MediaTek
+-- 
+2.36.1
+

package/boot/uboot-mediatek/patches/001-mtk-0014-gpio-add-support-for-MediaTek-MT7621-SoC.patch

@@ -0,0 +1,29 @@
+From f265423a441a3bcb51e25238544adb69f74becc7 Mon Sep 17 00:00:00 2001
+From: Weijie Gao <[email protected]>
+Date: Fri, 20 May 2022 11:23:14 +0800
+Subject: [PATCH 14/25] gpio: add support for MediaTek MT7621 SoC
+
+This patch makes mt7621_gpio driver available for MediaTek MT7621 SoC
+
+Reviewed-by: Stefan Roese <[email protected]>
+Signed-off-by: Weijie Gao <[email protected]>
+---
+ drivers/gpio/Kconfig | 2 +-
+ 1 file changed, 1 insertion(+), 1 deletion(-)
+
+diff --git a/drivers/gpio/Kconfig b/drivers/gpio/Kconfig
+index d7f37f0471..8f7e630098 100644
+--- a/drivers/gpio/Kconfig
++++ b/drivers/gpio/Kconfig
+@@ -553,7 +553,7 @@ config MT7620_GPIO
+ 
+ config MT7621_GPIO
+ 	bool "MediaTek MT7621 GPIO driver"
+-	depends on DM_GPIO && SOC_MT7628
++	depends on DM_GPIO && (SOC_MT7621 || SOC_MT7628)
+ 	default y
+ 	help
+ 	  Say yes here to support MediaTek MT7621 compatible GPIOs.
+-- 
+2.36.1
+

package/boot/uboot-mediatek/patches/001-mtk-0015-watchdog-add-support-for-MediaTek-MT7621-SoC.patch

@@ -0,0 +1,29 @@
+From eb1806fbf65c60b2ce462a0ebe39d9f9e652235a Mon Sep 17 00:00:00 2001
+From: Weijie Gao <[email protected]>
+Date: Fri, 20 May 2022 11:23:19 +0800
+Subject: [PATCH 15/25] watchdog: add support for MediaTek MT7621 SoC
+
+This patch makes mt7621_wdt driver available for MediaTek MT7621 SoC
+
+Reviewed-by: Stefan Roese <[email protected]>
+Signed-off-by: Weijie Gao <[email protected]>
+---
+ drivers/watchdog/Kconfig | 2 +-
+ 1 file changed, 1 insertion(+), 1 deletion(-)
+
+diff --git a/drivers/watchdog/Kconfig b/drivers/watchdog/Kconfig
+index c3eb8a8aec..dfb02aa468 100644
+--- a/drivers/watchdog/Kconfig
++++ b/drivers/watchdog/Kconfig
+@@ -191,7 +191,7 @@ config WDT_MT7620
+ 
+ config WDT_MT7621
+ 	bool "MediaTek MT7621 watchdog timer support"
+-	depends on WDT && SOC_MT7628
++	depends on WDT && (SOC_MT7621 || SOC_MT7628)
+ 	help
+ 	  Select this to enable Ralink / Mediatek watchdog timer,
+ 	  which can be found on some MediaTek chips.
+-- 
+2.36.1
+

package/boot/uboot-mediatek/patches/001-mtk-0016-mmc-mediatek-add-support-for-MediaTek-MT7621-SoC.patch

@@ -0,0 +1,47 @@
+From 4339ec44313e85dd1f6d3d708dd2e594855ce25d Mon Sep 17 00:00:00 2001
+From: Weijie Gao <[email protected]>
+Date: Fri, 20 May 2022 11:23:26 +0800
+Subject: [PATCH 16/25] mmc: mediatek: add support for MediaTek MT7621 SoC
+
+This patch adds SDXC support for MediaTek MT7621 SoC
+
+Reviewed-by: Jaehoon Chung <[email protected]>
+Signed-off-by: Weijie Gao <[email protected]>
+---
+ drivers/mmc/mtk-sd.c | 13 +++++++++++++
+ 1 file changed, 13 insertions(+)
+
+diff --git a/drivers/mmc/mtk-sd.c b/drivers/mmc/mtk-sd.c
+index 97182ffd7f..e61e8cf4b9 100644
+--- a/drivers/mmc/mtk-sd.c
++++ b/drivers/mmc/mtk-sd.c
+@@ -1761,6 +1761,18 @@ static const struct msdc_compatible mt7620_compat = {
+ 	.default_pad_dly = true,
+ };
+ 
++static const struct msdc_compatible mt7621_compat = {
++	.clk_div_bits = 8,
++	.pad_tune0 = false,
++	.async_fifo = true,
++	.data_tune = true,
++	.busy_check = false,
++	.stop_clk_fix = false,
++	.enhance_rx = false,
++	.builtin_pad_ctrl = true,
++	.default_pad_dly = true,
++};
++
+ static const struct msdc_compatible mt7622_compat = {
+ 	.clk_div_bits = 12,
+ 	.pad_tune0 = true,
+@@ -1809,6 +1821,7 @@ static const struct msdc_compatible mt8183_compat = {
+ 
+ static const struct udevice_id msdc_ids[] = {
+ 	{ .compatible = "mediatek,mt7620-mmc", .data = (ulong)&mt7620_compat },
++	{ .compatible = "mediatek,mt7621-mmc", .data = (ulong)&mt7621_compat },
+ 	{ .compatible = "mediatek,mt7622-mmc", .data = (ulong)&mt7622_compat },
+ 	{ .compatible = "mediatek,mt7623-mmc", .data = (ulong)&mt7623_compat },
+ 	{ .compatible = "mediatek,mt8512-mmc", .data = (ulong)&mt8512_compat },
+-- 
+2.36.1
+

package/boot/uboot-mediatek/patches/001-mtk-0017-net-mediatek-remap-iobase-address.patch

@@ -0,0 +1,38 @@
+From 391785398f61c85e6b55b1e9edbab94e3ba1b783 Mon Sep 17 00:00:00 2001
+From: Weijie Gao <[email protected]>
+Date: Fri, 20 May 2022 11:23:31 +0800
+Subject: [PATCH 17/25] net: mediatek: remap iobase address
+
+The iobase address from dts node is actually physical address. It's
+identical to the virtual address in ARM platform. This is ok because this
+driver was used only by ARM platforms (mt7622/mt7623 ...).
+
+But now this driver will be used by mt7621 which is a MIPS SoC. For MIPS
+platform the physical address space is mapped to KSEG0 and KSEG1 and this
+makes the virtual address apparently not idential to its physical address.
+
+To solve this issue, this patch replaces dev_read_addr with dev_remap_addr
+to get the remapped iobase address.
+
+Reviewed-by: Ramon Fried <[email protected]>
+Signed-off-by: Weijie Gao <[email protected]>
+---
+ drivers/net/mtk_eth.c | 2 +-
+ 1 file changed, 1 insertion(+), 1 deletion(-)
+
+diff --git a/drivers/net/mtk_eth.c b/drivers/net/mtk_eth.c
+index 666ddeb10d..caa83b7cec 100644
+--- a/drivers/net/mtk_eth.c
++++ b/drivers/net/mtk_eth.c
+@@ -1419,7 +1419,7 @@ static int mtk_eth_of_to_plat(struct udevice *dev)
+ 
+ 	priv->soc = dev_get_driver_data(dev);
+ 
+-	pdata->iobase = dev_read_addr(dev);
++	pdata->iobase = (phys_addr_t)dev_remap_addr(dev);
+ 
+ 	/* get corresponding ethsys phandle */
+ 	ret = dev_read_phandle_with_args(dev, "mediatek,ethsys", NULL, 0, 0,
+-- 
+2.36.1
+

package/boot/uboot-mediatek/patches/001-mtk-0018-net-mediatek-use-regmap-api-to-modify-ethsys-registe.patch

@@ -0,0 +1,72 @@
+From 955cc76d8074df943d59d559895007f91de8eed5 Mon Sep 17 00:00:00 2001
+From: Weijie Gao <[email protected]>
+Date: Fri, 20 May 2022 11:23:37 +0800
+Subject: [PATCH 18/25] net: mediatek: use regmap api to modify ethsys
+ registers
+
+The address returned by regmap_get_range() is not remapped. Directly r/w
+to this address is ok for ARM platforms since it's idential to the virtual
+address.
+
+But for MIPS platform only virtual address should be used for access.
+To solve this issue, the regmap api regmap_read/regmap_write should be used
+since they will remap address before accessing.
+
+Reviewed-by: Ramon Fried <[email protected]>
+Signed-off-by: Weijie Gao <[email protected]>
+---
+ drivers/net/mtk_eth.c | 22 +++++++++++-----------
+ 1 file changed, 11 insertions(+), 11 deletions(-)
+
+diff --git a/drivers/net/mtk_eth.c b/drivers/net/mtk_eth.c
+index caa83b7cec..ac1e8abd71 100644
+--- a/drivers/net/mtk_eth.c
++++ b/drivers/net/mtk_eth.c
+@@ -159,9 +159,10 @@ struct mtk_eth_priv {
+ 
+ 	void __iomem *fe_base;
+ 	void __iomem *gmac_base;
+-	void __iomem *ethsys_base;
+ 	void __iomem *sgmii_base;
+ 
++	struct regmap *ethsys_regmap;
++
+ 	struct mii_dev *mdio_bus;
+ 	int (*mii_read)(struct mtk_eth_priv *priv, u8 phy, u8 reg);
+ 	int (*mii_write)(struct mtk_eth_priv *priv, u8 phy, u8 reg, u16 val);
+@@ -233,7 +234,12 @@ static void mtk_gmac_rmw(struct mtk_eth_priv *priv, u32 reg, u32 clr, u32 set)
+ static void mtk_ethsys_rmw(struct mtk_eth_priv *priv, u32 reg, u32 clr,
+ 			   u32 set)
+ {
+-	clrsetbits_le32(priv->ethsys_base + reg, clr, set);
++	uint val;
++
++	regmap_read(priv->ethsys_regmap, reg, &val);
++	val &= ~clr;
++	val |= set;
++	regmap_write(priv->ethsys_regmap, reg, val);
+ }
+ 
+ /* Direct MDIO clause 22/45 access via SoC */
+@@ -1427,15 +1433,9 @@ static int mtk_eth_of_to_plat(struct udevice *dev)
+ 	if (ret)
+ 		return ret;
+ 
+-	regmap = syscon_node_to_regmap(args.node);
+-	if (IS_ERR(regmap))
+-		return PTR_ERR(regmap);
+-
+-	priv->ethsys_base = regmap_get_range(regmap, 0);
+-	if (!priv->ethsys_base) {
+-		dev_err(dev, "Unable to find ethsys\n");
+-		return -ENODEV;
+-	}
++	priv->ethsys_regmap = syscon_node_to_regmap(args.node);
++	if (IS_ERR(priv->ethsys_regmap))
++		return PTR_ERR(priv->ethsys_regmap);
+ 
+ 	/* Reset controllers */
+ 	ret = reset_get_by_name(dev, "fe", &priv->rst_fe);
+-- 
+2.36.1
+

package/boot/uboot-mediatek/patches/001-mtk-0019-net-mediatek-add-support-for-MediaTek-MT7621-SoC.patch

@@ -0,0 +1,72 @@
+From 7237a6a0c020c05bb819774391154b40b2cfaabd Mon Sep 17 00:00:00 2001
+From: Weijie Gao <[email protected]>
+Date: Fri, 20 May 2022 11:23:42 +0800
+Subject: [PATCH 19/25] net: mediatek: add support for MediaTek MT7621 SoC
+
+This patch adds GMAC support for MediaTek MT7621 SoC.
+MT7621 has the same GMAC/Switch configuration as MT7623.
+
+Reviewed-by: Ramon Fried <[email protected]>
+Signed-off-by: Weijie Gao <[email protected]>
+---
+ drivers/net/mtk_eth.c | 21 +++++++++++++++------
+ 1 file changed, 15 insertions(+), 6 deletions(-)
+
+diff --git a/drivers/net/mtk_eth.c b/drivers/net/mtk_eth.c
+index ac1e8abd71..4fe7ee0d36 100644
+--- a/drivers/net/mtk_eth.c
++++ b/drivers/net/mtk_eth.c
+@@ -145,7 +145,8 @@ enum mtk_switch {
+ enum mtk_soc {
+ 	SOC_MT7623,
+ 	SOC_MT7629,
+-	SOC_MT7622
++	SOC_MT7622,
++	SOC_MT7621
+ };
+ 
+ struct mtk_eth_priv {
+@@ -675,12 +676,18 @@ static int mt7530_pad_clk_setup(struct mtk_eth_priv *priv, int mode)
+ static int mt7530_setup(struct mtk_eth_priv *priv)
+ {
+ 	u16 phy_addr, phy_val;
+-	u32 val;
++	u32 val, txdrv;
+ 	int i;
+ 
+-	/* Select 250MHz clk for RGMII mode */
+-	mtk_ethsys_rmw(priv, ETHSYS_CLKCFG0_REG,
+-		       ETHSYS_TRGMII_CLK_SEL362_5, 0);
++	if (priv->soc != SOC_MT7621) {
++		/* Select 250MHz clk for RGMII mode */
++		mtk_ethsys_rmw(priv, ETHSYS_CLKCFG0_REG,
++			       ETHSYS_TRGMII_CLK_SEL362_5, 0);
++
++		txdrv = 8;
++	} else {
++		txdrv = 4;
++	}
+ 
+ 	/* Modify HWTRAP first to allow direct access to internal PHYs */
+ 	mt753x_reg_read(priv, HWTRAP_REG, &val);
+@@ -738,7 +745,8 @@ static int mt7530_setup(struct mtk_eth_priv *priv)
+ 	/* Lower Tx Driving for TRGMII path */
+ 	for (i = 0 ; i < NUM_TRGMII_CTRL ; i++)
+ 		mt753x_reg_write(priv, MT7530_TRGMII_TD_ODT(i),
+-				 (8 << TD_DM_DRVP_S) | (8 << TD_DM_DRVN_S));
++				 (txdrv << TD_DM_DRVP_S) |
++				 (txdrv << TD_DM_DRVN_S));
+ 
+ 	for (i = 0 ; i < NUM_TRGMII_CTRL; i++)
+ 		mt753x_reg_rmw(priv, MT7530_TRGMII_RD(i), RD_TAP_M, 16);
+@@ -1540,6 +1548,7 @@ static const struct udevice_id mtk_eth_ids[] = {
+ 	{ .compatible = "mediatek,mt7629-eth", .data = SOC_MT7629 },
+ 	{ .compatible = "mediatek,mt7623-eth", .data = SOC_MT7623 },
+ 	{ .compatible = "mediatek,mt7622-eth", .data = SOC_MT7622 },
++	{ .compatible = "mediatek,mt7621-eth", .data = SOC_MT7621 },
+ 	{}
+ };
+ 
+-- 
+2.36.1
+

package/boot/uboot-mediatek/patches/001-mtk-0020-nand-raw-add-support-for-MediaTek-MT7621-SoC.patch

@@ -0,0 +1,1572 @@
+From 8d94833f13ccd7e1dfea605cfdf9a8eb53505515 Mon Sep 17 00:00:00 2001
+From: Weijie Gao <[email protected]>
+Date: Fri, 20 May 2022 11:23:47 +0800
+Subject: [PATCH 20/25] nand: raw: add support for MediaTek MT7621 SoC
+
+This patch adds NAND flash controller driver for MediaTek MT7621 SoC.
+The NAND flash controller of MT7621 supports only SLC NAND flashes.
+It supports 4~12 bits correction with maximum 4KB page size.
+
+Signed-off-by: Weijie Gao <[email protected]>
+---
+ drivers/mtd/nand/raw/Kconfig           |   17 +-
+ drivers/mtd/nand/raw/Makefile          |    2 +
+ drivers/mtd/nand/raw/mt7621_nand.c     | 1205 ++++++++++++++++++++++++
+ drivers/mtd/nand/raw/mt7621_nand.h     |   29 +
+ drivers/mtd/nand/raw/mt7621_nand_spl.c |  237 +++++
+ 5 files changed, 1488 insertions(+), 2 deletions(-)
+ create mode 100644 drivers/mtd/nand/raw/mt7621_nand.c
+ create mode 100644 drivers/mtd/nand/raw/mt7621_nand.h
+ create mode 100644 drivers/mtd/nand/raw/mt7621_nand_spl.c
+
+diff --git a/drivers/mtd/nand/raw/Kconfig b/drivers/mtd/nand/raw/Kconfig
+index d75f371c95..1663f1941c 100644
+--- a/drivers/mtd/nand/raw/Kconfig
++++ b/drivers/mtd/nand/raw/Kconfig
+@@ -521,12 +521,25 @@ config TEGRA_NAND
+ 	help
+ 	  Enables support for NAND Flash chips on Tegra SoCs platforms.
+ 
++config NAND_MT7621
++	bool "Support for MediaTek MT7621 NAND flash controller"
++	depends on SOC_MT7621
++	select SYS_NAND_SELF_INIT
++	select SPL_SYS_NAND_SELF_INIT
++	imply CMD_NAND
++	help
++	  This enables NAND driver for the NAND flash controller on MediaTek
++	  MT7621 platform.
++	  The controller supports 4~12 bits correction per 512 bytes with a
++	  maximum 4KB page size.
++
+ comment "Generic NAND options"
+ 
+ config SYS_NAND_BLOCK_SIZE
+ 	hex "NAND chip eraseblock size"
+ 	depends on ARCH_SUNXI || SPL_NAND_SUPPORT || TPL_NAND_SUPPORT
+-	depends on !NAND_MXS && !NAND_DENALI_DT && !NAND_LPC32XX_MLC && !NAND_FSL_IFC
++	depends on !NAND_MXS && !NAND_DENALI_DT && !NAND_LPC32XX_MLC && \
++		!NAND_FSL_IFC && !NAND_MT7621
+ 	help
+ 	  Number of data bytes in one eraseblock for the NAND chip on the
+ 	  board. This is the multiple of NAND_PAGE_SIZE and the number of
+@@ -551,7 +564,7 @@ config SYS_NAND_PAGE_SIZE
+ 	depends on ARCH_SUNXI || NAND_OMAP_GPMC || NAND_LPC32XX_SLC || \
+ 		SPL_NAND_SIMPLE || (NAND_MXC && SPL_NAND_SUPPORT) || \
+ 		(NAND_ATMEL && SPL_NAND_SUPPORT) || SPL_GENERATE_ATMEL_PMECC_HEADER
+-	depends on !NAND_MXS && !NAND_DENALI_DT && !NAND_LPC32XX_MLC
++	depends on !NAND_MXS && !NAND_DENALI_DT && !NAND_LPC32XX_MLC && !NAND_MT7621
+ 	help
+ 	  Number of data bytes in one page for the NAND chip on the
+ 	  board, not including the OOB area.
+diff --git a/drivers/mtd/nand/raw/Makefile b/drivers/mtd/nand/raw/Makefile
+index 6ec3581d20..cfc9c0fff0 100644
+--- a/drivers/mtd/nand/raw/Makefile
++++ b/drivers/mtd/nand/raw/Makefile
+@@ -72,6 +72,7 @@ obj-$(CONFIG_NAND_ZYNQ) += zynq_nand.o
+ obj-$(CONFIG_NAND_STM32_FMC2) += stm32_fmc2_nand.o
+ obj-$(CONFIG_CORTINA_NAND) += cortina_nand.o
+ obj-$(CONFIG_ROCKCHIP_NAND) += rockchip_nfc.o
++obj-$(CONFIG_NAND_MT7621) += mt7621_nand.o
+ 
+ else  # minimal SPL drivers
+ 
+@@ -80,5 +81,6 @@ obj-$(CONFIG_NAND_FSL_IFC) += fsl_ifc_spl.o
+ obj-$(CONFIG_NAND_MXC) += mxc_nand_spl.o
+ obj-$(CONFIG_NAND_MXS) += mxs_nand_spl.o mxs_nand.o
+ obj-$(CONFIG_NAND_SUNXI) += sunxi_nand_spl.o
++obj-$(CONFIG_NAND_MT7621) += mt7621_nand_spl.o mt7621_nand.o
+ 
+ endif # drivers
+diff --git a/drivers/mtd/nand/raw/mt7621_nand.c b/drivers/mtd/nand/raw/mt7621_nand.c
+new file mode 100644
+index 0000000000..2fd8934939
+--- /dev/null
++++ b/drivers/mtd/nand/raw/mt7621_nand.c
+@@ -0,0 +1,1205 @@
++// SPDX-License-Identifier: GPL-2.0
++/*
++ * Copyright (C) 2022 MediaTek Inc. All rights reserved.
++ *
++ * Author: Weijie Gao <[email protected]>
++ */
++
++#include <log.h>
++#include <nand.h>
++#include <malloc.h>
++#include <asm/addrspace.h>
++#include <linux/io.h>
++#include <linux/iopoll.h>
++#include <linux/sizes.h>
++#include <linux/bitops.h>
++#include <linux/bitfield.h>
++#include "mt7621_nand.h"
++
++/* NFI core registers */
++#define NFI_CNFG			0x000
++#define   CNFG_OP_MODE			GENMASK(14, 12)
++#define     CNFG_OP_CUSTOM		6
++#define   CNFG_AUTO_FMT_EN		BIT(9)
++#define   CNFG_HW_ECC_EN		BIT(8)
++#define   CNFG_BYTE_RW			BIT(6)
++#define   CNFG_READ_MODE		BIT(1)
++
++#define NFI_PAGEFMT			0x004
++#define   PAGEFMT_FDM_ECC		GENMASK(15, 12)
++#define   PAGEFMT_FDM			GENMASK(11, 8)
++#define   PAGEFMT_SPARE			GENMASK(5, 4)
++#define   PAGEFMT_PAGE			GENMASK(1, 0)
++
++#define NFI_CON				0x008
++#define   CON_NFI_SEC			GENMASK(15, 12)
++#define   CON_NFI_BWR			BIT(9)
++#define   CON_NFI_BRD			BIT(8)
++#define   CON_NFI_RST			BIT(1)
++#define   CON_FIFO_FLUSH		BIT(0)
++
++#define NFI_ACCCON			0x00c
++#define   ACCCON_POECS			GENMASK(31, 28)
++#define   ACCCON_POECS_DEF		3
++#define   ACCCON_PRECS			GENMASK(27, 22)
++#define   ACCCON_PRECS_DEF		3
++#define   ACCCON_C2R			GENMASK(21, 16)
++#define   ACCCON_C2R_DEF		7
++#define   ACCCON_W2R			GENMASK(15, 12)
++#define   ACCCON_W2R_DEF		7
++#define   ACCCON_WH			GENMASK(11, 8)
++#define   ACCCON_WH_DEF			15
++#define   ACCCON_WST			GENMASK(7, 4)
++#define   ACCCON_WST_DEF		15
++#define   ACCCON_WST_MIN		3
++#define   ACCCON_RLT			GENMASK(3, 0)
++#define   ACCCON_RLT_DEF		15
++#define   ACCCON_RLT_MIN		3
++
++#define NFI_CMD				0x020
++
++#define NFI_ADDRNOB			0x030
++#define   ADDR_ROW_NOB			GENMASK(6, 4)
++#define   ADDR_COL_NOB			GENMASK(2, 0)
++
++#define NFI_COLADDR			0x034
++#define NFI_ROWADDR			0x038
++
++#define NFI_STRDATA			0x040
++#define   STR_DATA			BIT(0)
++
++#define NFI_CNRNB			0x044
++#define   CB2R_TIME			GENMASK(7, 4)
++#define   STR_CNRNB			BIT(0)
++
++#define NFI_DATAW			0x050
++#define NFI_DATAR			0x054
++
++#define NFI_PIO_DIRDY			0x058
++#define   PIO_DIRDY			BIT(0)
++
++#define NFI_STA				0x060
++#define   STA_NFI_FSM			GENMASK(19, 16)
++#define     STA_FSM_CUSTOM_DATA		14
++#define   STA_BUSY			BIT(8)
++#define   STA_ADDR			BIT(1)
++#define   STA_CMD			BIT(0)
++
++#define NFI_ADDRCNTR			0x070
++#define   SEC_CNTR			GENMASK(15, 12)
++#define   SEC_ADDR			GENMASK(9, 0)
++
++#define NFI_CSEL			0x090
++#define   CSEL				GENMASK(1, 0)
++
++#define NFI_FDM0L			0x0a0
++#define NFI_FDML(n)			(0x0a0 + ((n) << 3))
++
++#define NFI_FDM0M			0x0a4
++#define NFI_FDMM(n)			(0x0a4 + ((n) << 3))
++
++#define NFI_MASTER_STA			0x210
++#define   MAS_ADDR			GENMASK(11, 9)
++#define   MAS_RD			GENMASK(8, 6)
++#define   MAS_WR			GENMASK(5, 3)
++#define   MAS_RDDLY			GENMASK(2, 0)
++
++/* ECC engine registers */
++#define ECC_ENCCON			0x000
++#define   ENC_EN			BIT(0)
++
++#define ECC_ENCCNFG			0x004
++#define   ENC_CNFG_MSG			GENMASK(28, 16)
++#define   ENC_MODE			GENMASK(5, 4)
++#define     ENC_MODE_NFI		1
++#define   ENC_TNUM			GENMASK(2, 0)
++
++#define ECC_ENCIDLE			0x00c
++#define   ENC_IDLE			BIT(0)
++
++#define ECC_DECCON			0x100
++#define   DEC_EN			BIT(0)
++
++#define ECC_DECCNFG			0x104
++#define   DEC_EMPTY_EN			BIT(31)
++#define   DEC_CS			GENMASK(28, 16)
++#define   DEC_CON			GENMASK(13, 12)
++#define     DEC_CON_EL			2
++#define   DEC_MODE			GENMASK(5, 4)
++#define     DEC_MODE_NFI		1
++#define   DEC_TNUM			GENMASK(2, 0)
++
++#define ECC_DECIDLE			0x10c
++#define   DEC_IDLE			BIT(1)
++
++#define ECC_DECENUM			0x114
++#define   ERRNUM_S			2
++#define   ERRNUM_M			GENMASK(3, 0)
++
++#define ECC_DECDONE			0x118
++#define   DEC_DONE7			BIT(7)
++#define   DEC_DONE6			BIT(6)
++#define   DEC_DONE5			BIT(5)
++#define   DEC_DONE4			BIT(4)
++#define   DEC_DONE3			BIT(3)
++#define   DEC_DONE2			BIT(2)
++#define   DEC_DONE1			BIT(1)
++#define   DEC_DONE0			BIT(0)
++
++#define ECC_DECEL(n)			(0x11c + (n) * 4)
++#define   DEC_EL_ODD_S			16
++#define   DEC_EL_M			0x1fff
++#define   DEC_EL_BYTE_POS_S		3
++#define   DEC_EL_BIT_POS_M		GENMASK(2, 0)
++
++#define ECC_FDMADDR			0x13c
++
++/* ENCIDLE and DECIDLE */
++#define   ECC_IDLE			BIT(0)
++
++#define ACCTIMING(tpoecs, tprecs, tc2r, tw2r, twh, twst, trlt) \
++	(FIELD_PREP(ACCCON_POECS, tpoecs) | \
++	 FIELD_PREP(ACCCON_PRECS, tprecs) | \
++	 FIELD_PREP(ACCCON_C2R, tc2r) | \
++	 FIELD_PREP(ACCCON_W2R, tw2r) | \
++	 FIELD_PREP(ACCCON_WH, twh) | \
++	 FIELD_PREP(ACCCON_WST, twst) | \
++	 FIELD_PREP(ACCCON_RLT, trlt))
++
++#define MASTER_STA_MASK			(MAS_ADDR | MAS_RD | MAS_WR | \
++					 MAS_RDDLY)
++#define NFI_RESET_TIMEOUT		1000000
++#define NFI_CORE_TIMEOUT		500000
++#define ECC_ENGINE_TIMEOUT		500000
++
++#define ECC_SECTOR_SIZE			512
++#define ECC_PARITY_BITS			13
++
++#define NFI_FDM_SIZE			8
++
++/* Register base */
++#define NFI_BASE			0x1e003000
++#define NFI_ECC_BASE			0x1e003800
++
++static struct mt7621_nfc nfc_dev;
++
++static const u16 mt7621_nfi_page_size[] = { SZ_512, SZ_2K, SZ_4K };
++static const u8 mt7621_nfi_spare_size[] = { 16, 26, 27, 28 };
++static const u8 mt7621_ecc_strength[] = { 4, 6, 8, 10, 12 };
++
++static inline u32 nfi_read32(struct mt7621_nfc *nfc, u32 reg)
++{
++	return readl(nfc->nfi_regs + reg);
++}
++
++static inline void nfi_write32(struct mt7621_nfc *nfc, u32 reg, u32 val)
++{
++	writel(val, nfc->nfi_regs + reg);
++}
++
++static inline u16 nfi_read16(struct mt7621_nfc *nfc, u32 reg)
++{
++	return readw(nfc->nfi_regs + reg);
++}
++
++static inline void nfi_write16(struct mt7621_nfc *nfc, u32 reg, u16 val)
++{
++	writew(val, nfc->nfi_regs + reg);
++}
++
++static inline void ecc_write16(struct mt7621_nfc *nfc, u32 reg, u16 val)
++{
++	writew(val, nfc->ecc_regs + reg);
++}
++
++static inline u32 ecc_read32(struct mt7621_nfc *nfc, u32 reg)
++{
++	return readl(nfc->ecc_regs + reg);
++}
++
++static inline void ecc_write32(struct mt7621_nfc *nfc, u32 reg, u32 val)
++{
++	return writel(val, nfc->ecc_regs + reg);
++}
++
++static inline u8 *oob_fdm_ptr(struct nand_chip *nand, int sect)
++{
++	return nand->oob_poi + sect * NFI_FDM_SIZE;
++}
++
++static inline u8 *oob_ecc_ptr(struct mt7621_nfc *nfc, int sect)
++{
++	struct nand_chip *nand = &nfc->nand;
++
++	return nand->oob_poi + nand->ecc.steps * NFI_FDM_SIZE +
++		sect * (nfc->spare_per_sector - NFI_FDM_SIZE);
++}
++
++static inline u8 *page_data_ptr(struct nand_chip *nand, const u8 *buf,
++				int sect)
++{
++	return (u8 *)buf + sect * nand->ecc.size;
++}
++
++static int mt7621_ecc_wait_idle(struct mt7621_nfc *nfc, u32 reg)
++{
++	u32 val;
++	int ret;
++
++	ret = readw_poll_timeout(nfc->ecc_regs + reg, val, val & ECC_IDLE,
++				 ECC_ENGINE_TIMEOUT);
++	if (ret) {
++		pr_warn("ECC engine timed out entering idle mode\n");
++		return -EIO;
++	}
++
++	return 0;
++}
++
++static int mt7621_ecc_decoder_wait_done(struct mt7621_nfc *nfc, u32 sect)
++{
++	u32 val;
++	int ret;
++
++	ret = readw_poll_timeout(nfc->ecc_regs + ECC_DECDONE, val,
++				 val & (1 << sect), ECC_ENGINE_TIMEOUT);
++	if (ret) {
++		pr_warn("ECC decoder for sector %d timed out\n", sect);
++		return -ETIMEDOUT;
++	}
++
++	return 0;
++}
++
++static void mt7621_ecc_encoder_op(struct mt7621_nfc *nfc, bool enable)
++{
++	mt7621_ecc_wait_idle(nfc, ECC_ENCIDLE);
++	ecc_write16(nfc, ECC_ENCCON, enable ? ENC_EN : 0);
++}
++
++static void mt7621_ecc_decoder_op(struct mt7621_nfc *nfc, bool enable)
++{
++	mt7621_ecc_wait_idle(nfc, ECC_DECIDLE);
++	ecc_write16(nfc, ECC_DECCON, enable ? DEC_EN : 0);
++}
++
++static int mt7621_ecc_correct_check(struct mt7621_nfc *nfc, u8 *sector_buf,
++				    u8 *fdm_buf, u32 sect)
++{
++	struct nand_chip *nand = &nfc->nand;
++	u32 decnum, num_error_bits, fdm_end_bits;
++	u32 error_locations, error_bit_loc;
++	u32 error_byte_pos, error_bit_pos;
++	int bitflips = 0;
++	u32 i;
++
++	decnum = ecc_read32(nfc, ECC_DECENUM);
++	num_error_bits = (decnum >> (sect << ERRNUM_S)) & ERRNUM_M;
++	fdm_end_bits = (nand->ecc.size + NFI_FDM_SIZE) << 3;
++
++	if (!num_error_bits)
++		return 0;
++
++	if (num_error_bits == ERRNUM_M)
++		return -1;
++
++	for (i = 0; i < num_error_bits; i++) {
++		error_locations = ecc_read32(nfc, ECC_DECEL(i / 2));
++		error_bit_loc = (error_locations >> ((i % 2) * DEC_EL_ODD_S)) &
++				DEC_EL_M;
++		error_byte_pos = error_bit_loc >> DEC_EL_BYTE_POS_S;
++		error_bit_pos = error_bit_loc & DEC_EL_BIT_POS_M;
++
++		if (error_bit_loc < (nand->ecc.size << 3)) {
++			if (sector_buf) {
++				sector_buf[error_byte_pos] ^=
++					(1 << error_bit_pos);
++			}
++		} else if (error_bit_loc < fdm_end_bits) {
++			if (fdm_buf) {
++				fdm_buf[error_byte_pos - nand->ecc.size] ^=
++					(1 << error_bit_pos);
++			}
++		}
++
++		bitflips++;
++	}
++
++	return bitflips;
++}
++
++static int mt7621_nfc_wait_write_completion(struct mt7621_nfc *nfc,
++					    struct nand_chip *nand)
++{
++	u16 val;
++	int ret;
++
++	ret = readw_poll_timeout(nfc->nfi_regs + NFI_ADDRCNTR, val,
++				 FIELD_GET(SEC_CNTR, val) >= nand->ecc.steps,
++				 NFI_CORE_TIMEOUT);
++
++	if (ret) {
++		pr_warn("NFI core write operation timed out\n");
++		return -ETIMEDOUT;
++	}
++
++	return ret;
++}
++
++static void mt7621_nfc_hw_reset(struct mt7621_nfc *nfc)
++{
++	u32 val;
++	int ret;
++
++	/* reset all registers and force the NFI master to terminate */
++	nfi_write16(nfc, NFI_CON, CON_FIFO_FLUSH | CON_NFI_RST);
++
++	/* wait for the master to finish the last transaction */
++	ret = readw_poll_timeout(nfc->nfi_regs + NFI_MASTER_STA, val,
++				 !(val & MASTER_STA_MASK), NFI_RESET_TIMEOUT);
++	if (ret) {
++		pr_warn("Failed to reset NFI master in %dms\n",
++			NFI_RESET_TIMEOUT);
++	}
++
++	/* ensure any status register affected by the NFI master is reset */
++	nfi_write16(nfc, NFI_CON, CON_FIFO_FLUSH | CON_NFI_RST);
++	nfi_write16(nfc, NFI_STRDATA, 0);
++}
++
++static inline void mt7621_nfc_hw_init(struct mt7621_nfc *nfc)
++{
++	u32 acccon;
++
++	/*
++	 * CNRNB: nand ready/busy register
++	 * -------------------------------
++	 * 7:4: timeout register for polling the NAND busy/ready signal
++	 * 0  : poll the status of the busy/ready signal after [7:4]*16 cycles.
++	 */
++	nfi_write16(nfc, NFI_CNRNB, CB2R_TIME | STR_CNRNB);
++
++	mt7621_nfc_hw_reset(nfc);
++
++	/* Apply default access timing */
++	acccon = ACCTIMING(ACCCON_POECS_DEF, ACCCON_PRECS_DEF, ACCCON_C2R_DEF,
++			   ACCCON_W2R_DEF, ACCCON_WH_DEF, ACCCON_WST_DEF,
++			   ACCCON_RLT_DEF);
++
++	nfi_write32(nfc, NFI_ACCCON, acccon);
++}
++
++static int mt7621_nfc_send_command(struct mt7621_nfc *nfc, u8 command)
++{
++	u32 val;
++	int ret;
++
++	nfi_write32(nfc, NFI_CMD, command);
++
++	ret = readl_poll_timeout(nfc->nfi_regs + NFI_STA, val, !(val & STA_CMD),
++				 NFI_CORE_TIMEOUT);
++	if (ret) {
++		pr_warn("NFI core timed out entering command mode\n");
++		return -EIO;
++	}
++
++	return 0;
++}
++
++static int mt7621_nfc_send_address_byte(struct mt7621_nfc *nfc, int addr)
++{
++	u32 val;
++	int ret;
++
++	nfi_write32(nfc, NFI_COLADDR, addr);
++	nfi_write32(nfc, NFI_ROWADDR, 0);
++	nfi_write16(nfc, NFI_ADDRNOB, 1);
++
++	ret = readl_poll_timeout(nfc->nfi_regs + NFI_STA, val,
++				 !(val & STA_ADDR), NFI_CORE_TIMEOUT);
++	if (ret) {
++		pr_warn("NFI core timed out entering address mode\n");
++		return -EIO;
++	}
++
++	return 0;
++}
++
++static void mt7621_nfc_cmd_ctrl(struct mtd_info *mtd, int dat,
++				unsigned int ctrl)
++{
++	struct mt7621_nfc *nfc = nand_get_controller_data(mtd_to_nand(mtd));
++
++	if (ctrl & NAND_ALE) {
++		mt7621_nfc_send_address_byte(nfc, dat & 0xff);
++	} else if (ctrl & NAND_CLE) {
++		mt7621_nfc_hw_reset(nfc);
++		nfi_write16(nfc, NFI_CNFG,
++			    FIELD_PREP(CNFG_OP_MODE, CNFG_OP_CUSTOM));
++		mt7621_nfc_send_command(nfc, dat);
++	}
++}
++
++static int mt7621_nfc_dev_ready(struct mtd_info *mtd)
++{
++	struct mt7621_nfc *nfc = nand_get_controller_data(mtd_to_nand(mtd));
++
++	if (nfi_read32(nfc, NFI_STA) & STA_BUSY)
++		return 0;
++
++	return 1;
++}
++
++static void mt7621_nfc_select_chip(struct mtd_info *mtd, int chipnr)
++{
++	struct mt7621_nfc *nfc = nand_get_controller_data(mtd_to_nand(mtd));
++
++	nfi_write16(nfc, NFI_CSEL, 0);
++}
++
++static void mt7621_nfc_wait_pio_ready(struct mt7621_nfc *nfc)
++{
++	int ret;
++	u16 val;
++
++	ret = readw_poll_timeout(nfc->nfi_regs + NFI_PIO_DIRDY, val,
++				 val & PIO_DIRDY, NFI_CORE_TIMEOUT);
++	if (ret < 0)
++		pr_err("NFI core PIO mode not ready\n");
++}
++
++static u32 mt7621_nfc_pio_read(struct mt7621_nfc *nfc, bool br)
++{
++	u32 reg, fsm;
++
++	/* after each byte read, the NFI_STA reg is reset by the hardware */
++	reg = nfi_read32(nfc, NFI_STA);
++	fsm = FIELD_GET(STA_NFI_FSM, reg);
++
++	if (fsm != STA_FSM_CUSTOM_DATA) {
++		reg = nfi_read16(nfc, NFI_CNFG);
++		reg |= CNFG_READ_MODE | CNFG_BYTE_RW;
++		if (!br)
++			reg &= ~CNFG_BYTE_RW;
++		nfi_write16(nfc, NFI_CNFG, reg);
++
++		/*
++		 * set to max sector to allow the HW to continue reading over
++		 * unaligned accesses
++		 */
++		nfi_write16(nfc, NFI_CON, CON_NFI_SEC | CON_NFI_BRD);
++
++		/* trigger to fetch data */
++		nfi_write16(nfc, NFI_STRDATA, STR_DATA);
++	}
++
++	mt7621_nfc_wait_pio_ready(nfc);
++
++	return nfi_read32(nfc, NFI_DATAR);
++}
++
++static void mt7621_nfc_read_data(struct mt7621_nfc *nfc, u8 *buf, u32 len)
++{
++	while (((uintptr_t)buf & 3) && len) {
++		*buf = mt7621_nfc_pio_read(nfc, true);
++		buf++;
++		len--;
++	}
++
++	while (len >= 4) {
++		*(u32 *)buf = mt7621_nfc_pio_read(nfc, false);
++		buf += 4;
++		len -= 4;
++	}
++
++	while (len) {
++		*buf = mt7621_nfc_pio_read(nfc, true);
++		buf++;
++		len--;
++	}
++}
++
++static void mt7621_nfc_read_data_discard(struct mt7621_nfc *nfc, u32 len)
++{
++	while (len >= 4) {
++		mt7621_nfc_pio_read(nfc, false);
++		len -= 4;
++	}
++
++	while (len) {
++		mt7621_nfc_pio_read(nfc, true);
++		len--;
++	}
++}
++
++static void mt7621_nfc_pio_write(struct mt7621_nfc *nfc, u32 val, bool bw)
++{
++	u32 reg, fsm;
++
++	reg = nfi_read32(nfc, NFI_STA);
++	fsm = FIELD_GET(STA_NFI_FSM, reg);
++
++	if (fsm != STA_FSM_CUSTOM_DATA) {
++		reg = nfi_read16(nfc, NFI_CNFG);
++		reg &= ~(CNFG_READ_MODE | CNFG_BYTE_RW);
++		if (bw)
++			reg |= CNFG_BYTE_RW;
++		nfi_write16(nfc, NFI_CNFG, reg);
++
++		nfi_write16(nfc, NFI_CON, CON_NFI_SEC | CON_NFI_BWR);
++		nfi_write16(nfc, NFI_STRDATA, STR_DATA);
++	}
++
++	mt7621_nfc_wait_pio_ready(nfc);
++	nfi_write32(nfc, NFI_DATAW, val);
++}
++
++static void mt7621_nfc_write_data(struct mt7621_nfc *nfc, const u8 *buf,
++				  u32 len)
++{
++	while (((uintptr_t)buf & 3) && len) {
++		mt7621_nfc_pio_write(nfc, *buf, true);
++		buf++;
++		len--;
++	}
++
++	while (len >= 4) {
++		mt7621_nfc_pio_write(nfc, *(const u32 *)buf, false);
++		buf += 4;
++		len -= 4;
++	}
++
++	while (len) {
++		mt7621_nfc_pio_write(nfc, *buf, true);
++		buf++;
++		len--;
++	}
++}
++
++static void mt7621_nfc_write_data_empty(struct mt7621_nfc *nfc, u32 len)
++{
++	while (len >= 4) {
++		mt7621_nfc_pio_write(nfc, 0xffffffff, false);
++		len -= 4;
++	}
++
++	while (len) {
++		mt7621_nfc_pio_write(nfc, 0xff, true);
++		len--;
++	}
++}
++
++static void mt7621_nfc_write_byte(struct mtd_info *mtd, u8 byte)
++{
++	struct mt7621_nfc *nfc = nand_get_controller_data(mtd_to_nand(mtd));
++
++	mt7621_nfc_pio_write(nfc, byte, true);
++}
++
++static void mt7621_nfc_write_buf(struct mtd_info *mtd, const u8 *buf, int len)
++{
++	struct mt7621_nfc *nfc = nand_get_controller_data(mtd_to_nand(mtd));
++
++	return mt7621_nfc_write_data(nfc, buf, len);
++}
++
++static u8 mt7621_nfc_read_byte(struct mtd_info *mtd)
++{
++	struct mt7621_nfc *nfc = nand_get_controller_data(mtd_to_nand(mtd));
++
++	return mt7621_nfc_pio_read(nfc, true);
++}
++
++static void mt7621_nfc_read_buf(struct mtd_info *mtd, u8 *buf, int len)
++{
++	struct mt7621_nfc *nfc = nand_get_controller_data(mtd_to_nand(mtd));
++
++	mt7621_nfc_read_data(nfc, buf, len);
++}
++
++static int mt7621_nfc_calc_ecc_strength(struct mt7621_nfc *nfc,
++					u32 avail_ecc_bytes)
++{
++	struct nand_chip *nand = &nfc->nand;
++	struct mtd_info *mtd = nand_to_mtd(nand);
++	u32 strength;
++	int i;
++
++	strength = avail_ecc_bytes * 8 / ECC_PARITY_BITS;
++
++	/* Find the closest supported ecc strength */
++	for (i = ARRAY_SIZE(mt7621_ecc_strength) - 1; i >= 0; i--) {
++		if (mt7621_ecc_strength[i] <= strength)
++			break;
++	}
++
++	if (unlikely(i < 0)) {
++		pr_err("OOB size (%u) is not supported\n", mtd->oobsize);
++		return -EINVAL;
++	}
++
++	nand->ecc.strength = mt7621_ecc_strength[i];
++	nand->ecc.bytes = DIV_ROUND_UP(nand->ecc.strength * ECC_PARITY_BITS, 8);
++
++	pr_debug("ECC strength adjusted to %u bits\n", nand->ecc.strength);
++
++	return i;
++}
++
++static int mt7621_nfc_set_spare_per_sector(struct mt7621_nfc *nfc)
++{
++	struct nand_chip *nand = &nfc->nand;
++	struct mtd_info *mtd = nand_to_mtd(nand);
++	u32 size;
++	int i;
++
++	size = nand->ecc.bytes + NFI_FDM_SIZE;
++
++	/* Find the closest supported spare size */
++	for (i = 0; i < ARRAY_SIZE(mt7621_nfi_spare_size); i++) {
++		if (mt7621_nfi_spare_size[i] >= size)
++			break;
++	}
++
++	if (unlikely(i >= ARRAY_SIZE(mt7621_nfi_spare_size))) {
++		pr_err("OOB size (%u) is not supported\n", mtd->oobsize);
++		return -EINVAL;
++	}
++
++	nfc->spare_per_sector = mt7621_nfi_spare_size[i];
++
++	return i;
++}
++
++static int mt7621_nfc_ecc_init(struct mt7621_nfc *nfc)
++{
++	struct nand_chip *nand = &nfc->nand;
++	struct mtd_info *mtd = nand_to_mtd(nand);
++	u32 avail_ecc_bytes, encode_block_size, decode_block_size;
++	u32 ecc_enccfg, ecc_deccfg;
++	int ecc_cap;
++
++	nand->ecc.options |= NAND_ECC_CUSTOM_PAGE_ACCESS;
++
++	nand->ecc.size = ECC_SECTOR_SIZE;
++	nand->ecc.steps = mtd->writesize / nand->ecc.size;
++
++	avail_ecc_bytes = mtd->oobsize / nand->ecc.steps - NFI_FDM_SIZE;
++
++	ecc_cap = mt7621_nfc_calc_ecc_strength(nfc, avail_ecc_bytes);
++	if (ecc_cap < 0)
++		return ecc_cap;
++
++	/* Sector + FDM */
++	encode_block_size = (nand->ecc.size + NFI_FDM_SIZE) * 8;
++	ecc_enccfg = ecc_cap | FIELD_PREP(ENC_MODE, ENC_MODE_NFI) |
++		     FIELD_PREP(ENC_CNFG_MSG, encode_block_size);
++
++	/* Sector + FDM + ECC parity bits */
++	decode_block_size = ((nand->ecc.size + NFI_FDM_SIZE) * 8) +
++			    nand->ecc.strength * ECC_PARITY_BITS;
++	ecc_deccfg = ecc_cap | FIELD_PREP(DEC_MODE, DEC_MODE_NFI) |
++		     FIELD_PREP(DEC_CS, decode_block_size) |
++		     FIELD_PREP(DEC_CON, DEC_CON_EL) | DEC_EMPTY_EN;
++
++	mt7621_ecc_encoder_op(nfc, false);
++	ecc_write32(nfc, ECC_ENCCNFG, ecc_enccfg);
++
++	mt7621_ecc_decoder_op(nfc, false);
++	ecc_write32(nfc, ECC_DECCNFG, ecc_deccfg);
++
++	return 0;
++}
++
++static int mt7621_nfc_set_page_format(struct mt7621_nfc *nfc)
++{
++	struct nand_chip *nand = &nfc->nand;
++	struct mtd_info *mtd = nand_to_mtd(nand);
++	int i, spare_size;
++	u32 pagefmt;
++
++	spare_size = mt7621_nfc_set_spare_per_sector(nfc);
++	if (spare_size < 0)
++		return spare_size;
++
++	for (i = 0; i < ARRAY_SIZE(mt7621_nfi_page_size); i++) {
++		if (mt7621_nfi_page_size[i] == mtd->writesize)
++			break;
++	}
++
++	if (unlikely(i >= ARRAY_SIZE(mt7621_nfi_page_size))) {
++		pr_err("Page size (%u) is not supported\n", mtd->writesize);
++		return -EINVAL;
++	}
++
++	pagefmt = FIELD_PREP(PAGEFMT_PAGE, i) |
++		  FIELD_PREP(PAGEFMT_SPARE, spare_size) |
++		  FIELD_PREP(PAGEFMT_FDM, NFI_FDM_SIZE) |
++		  FIELD_PREP(PAGEFMT_FDM_ECC, NFI_FDM_SIZE);
++
++	nfi_write16(nfc, NFI_PAGEFMT, pagefmt);
++
++	return 0;
++}
++
++static int mt7621_nfc_attach_chip(struct nand_chip *nand)
++{
++	struct mt7621_nfc *nfc = nand_get_controller_data(nand);
++	int ret;
++
++	if (nand->options & NAND_BUSWIDTH_16) {
++		pr_err("16-bit buswidth is not supported");
++		return -EINVAL;
++	}
++
++	ret = mt7621_nfc_ecc_init(nfc);
++	if (ret)
++		return ret;
++
++	return mt7621_nfc_set_page_format(nfc);
++}
++
++static void mt7621_nfc_write_fdm(struct mt7621_nfc *nfc)
++{
++	struct nand_chip *nand = &nfc->nand;
++	u32 vall, valm;
++	u8 *oobptr;
++	int i, j;
++
++	for (i = 0; i < nand->ecc.steps; i++) {
++		vall = 0;
++		valm = 0;
++		oobptr = oob_fdm_ptr(nand, i);
++
++		for (j = 0; j < 4; j++)
++			vall |= (u32)oobptr[j] << (j * 8);
++
++		for (j = 0; j < 4; j++)
++			valm |= (u32)oobptr[j + 4] << (j * 8);
++
++		nfi_write32(nfc, NFI_FDML(i), vall);
++		nfi_write32(nfc, NFI_FDMM(i), valm);
++	}
++}
++
++static void mt7621_nfc_read_sector_fdm(struct mt7621_nfc *nfc, u32 sect)
++{
++	struct nand_chip *nand = &nfc->nand;
++	u32 vall, valm;
++	u8 *oobptr;
++	int i;
++
++	vall = nfi_read32(nfc, NFI_FDML(sect));
++	valm = nfi_read32(nfc, NFI_FDMM(sect));
++	oobptr = oob_fdm_ptr(nand, sect);
++
++	for (i = 0; i < 4; i++)
++		oobptr[i] = (vall >> (i * 8)) & 0xff;
++
++	for (i = 0; i < 4; i++)
++		oobptr[i + 4] = (valm >> (i * 8)) & 0xff;
++}
++
++static int mt7621_nfc_read_page_hwecc(struct mtd_info *mtd,
++				      struct nand_chip *nand, uint8_t *buf,
++				      int oob_required, int page)
++{
++	struct mt7621_nfc *nfc = nand_get_controller_data(nand);
++	int bitflips = 0, ret = 0;
++	int rc, i;
++
++	nand_read_page_op(nand, page, 0, NULL, 0);
++
++	nfi_write16(nfc, NFI_CNFG, FIELD_PREP(CNFG_OP_MODE, CNFG_OP_CUSTOM) |
++		    CNFG_READ_MODE | CNFG_AUTO_FMT_EN | CNFG_HW_ECC_EN);
++
++	mt7621_ecc_decoder_op(nfc, true);
++
++	nfi_write16(nfc, NFI_CON, FIELD_PREP(CON_NFI_SEC, nand->ecc.steps) |
++		    CON_NFI_BRD);
++
++	for (i = 0; i < nand->ecc.steps; i++) {
++		if (buf)
++			mt7621_nfc_read_data(nfc, page_data_ptr(nand, buf, i),
++					     nand->ecc.size);
++		else
++			mt7621_nfc_read_data_discard(nfc, nand->ecc.size);
++
++		rc = mt7621_ecc_decoder_wait_done(nfc, i);
++
++		mt7621_nfc_read_sector_fdm(nfc, i);
++
++		if (rc < 0) {
++			ret = -EIO;
++			continue;
++		}
++
++		rc = mt7621_ecc_correct_check(nfc,
++			buf ? page_data_ptr(nand, buf, i) : NULL,
++			oob_fdm_ptr(nand, i), i);
++
++		if (rc < 0) {
++			pr_warn("Uncorrectable ECC error at page %d step %d\n",
++				page, i);
++			bitflips = nand->ecc.strength + 1;
++			mtd->ecc_stats.failed++;
++		} else {
++			if (rc > bitflips)
++				bitflips = rc;
++			mtd->ecc_stats.corrected += rc;
++		}
++	}
++
++	mt7621_ecc_decoder_op(nfc, false);
++
++	nfi_write16(nfc, NFI_CON, 0);
++
++	if (ret < 0)
++		return ret;
++
++	return bitflips;
++}
++
++static int mt7621_nfc_read_page_raw(struct mtd_info *mtd,
++				    struct nand_chip *nand, uint8_t *buf,
++				    int oob_required, int page)
++{
++	struct mt7621_nfc *nfc = nand_get_controller_data(nand);
++	int i;
++
++	nand_read_page_op(nand, page, 0, NULL, 0);
++
++	nfi_write16(nfc, NFI_CNFG, FIELD_PREP(CNFG_OP_MODE, CNFG_OP_CUSTOM) |
++		    CNFG_READ_MODE);
++
++	nfi_write16(nfc, NFI_CON, FIELD_PREP(CON_NFI_SEC, nand->ecc.steps) |
++		    CON_NFI_BRD);
++
++	for (i = 0; i < nand->ecc.steps; i++) {
++		/* Read data */
++		if (buf)
++			mt7621_nfc_read_data(nfc, page_data_ptr(nand, buf, i),
++					     nand->ecc.size);
++		else
++			mt7621_nfc_read_data_discard(nfc, nand->ecc.size);
++
++		/* Read FDM */
++		mt7621_nfc_read_data(nfc, oob_fdm_ptr(nand, i), NFI_FDM_SIZE);
++
++		/* Read ECC parity data */
++		mt7621_nfc_read_data(nfc, oob_ecc_ptr(nfc, i),
++				     nfc->spare_per_sector - NFI_FDM_SIZE);
++	}
++
++	nfi_write16(nfc, NFI_CON, 0);
++
++	return 0;
++}
++
++static int mt7621_nfc_read_oob_hwecc(struct mtd_info *mtd,
++				     struct nand_chip *nand, int page)
++{
++	return mt7621_nfc_read_page_hwecc(mtd, nand, NULL, 1, page);
++}
++
++static int mt7621_nfc_read_oob_raw(struct mtd_info *mtd,
++				   struct nand_chip *nand, int page)
++{
++	return mt7621_nfc_read_page_raw(mtd, nand, NULL, 1, page);
++}
++
++static int mt7621_nfc_check_empty_page(struct nand_chip *nand, const u8 *buf)
++{
++	struct mtd_info *mtd = nand_to_mtd(nand);
++	u8 *oobptr;
++	u32 i, j;
++
++	if (buf) {
++		for (i = 0; i < mtd->writesize; i++)
++			if (buf[i] != 0xff)
++				return 0;
++	}
++
++	for (i = 0; i < nand->ecc.steps; i++) {
++		oobptr = oob_fdm_ptr(nand, i);
++		for (j = 0; j < NFI_FDM_SIZE; j++)
++			if (oobptr[j] != 0xff)
++				return 0;
++	}
++
++	return 1;
++}
++
++static int mt7621_nfc_write_page_hwecc(struct mtd_info *mtd,
++				       struct nand_chip *nand,
++				       const u8 *buf, int oob_required,
++				       int page)
++{
++	struct mt7621_nfc *nfc = nand_get_controller_data(nand);
++
++	if (mt7621_nfc_check_empty_page(nand, buf)) {
++		/*
++		 * MT7621 ECC engine always generates parity code for input
++		 * pages, even for empty pages. Doing so will write back ECC
++		 * parity code to the oob region, which means such pages will
++		 * no longer be empty pages.
++		 *
++		 * To avoid this, stop write operation if current page is an
++		 * empty page.
++		 */
++		return 0;
++	}
++
++	nand_prog_page_begin_op(nand, page, 0, NULL, 0);
++
++	nfi_write16(nfc, NFI_CNFG, FIELD_PREP(CNFG_OP_MODE, CNFG_OP_CUSTOM) |
++		    CNFG_AUTO_FMT_EN | CNFG_HW_ECC_EN);
++
++	mt7621_ecc_encoder_op(nfc, true);
++
++	mt7621_nfc_write_fdm(nfc);
++
++	nfi_write16(nfc, NFI_CON, FIELD_PREP(CON_NFI_SEC, nand->ecc.steps) |
++		    CON_NFI_BWR);
++
++	if (buf)
++		mt7621_nfc_write_data(nfc, buf, mtd->writesize);
++	else
++		mt7621_nfc_write_data_empty(nfc, mtd->writesize);
++
++	mt7621_nfc_wait_write_completion(nfc, nand);
++
++	mt7621_ecc_encoder_op(nfc, false);
++
++	nfi_write16(nfc, NFI_CON, 0);
++
++	return nand_prog_page_end_op(nand);
++}
++
++static int mt7621_nfc_write_page_raw(struct mtd_info *mtd,
++				     struct nand_chip *nand,
++				     const u8 *buf, int oob_required,
++				     int page)
++{
++	struct mt7621_nfc *nfc = nand_get_controller_data(nand);
++	int i;
++
++	nand_prog_page_begin_op(nand, page, 0, NULL, 0);
++
++	nfi_write16(nfc, NFI_CNFG, FIELD_PREP(CNFG_OP_MODE, CNFG_OP_CUSTOM));
++
++	nfi_write16(nfc, NFI_CON, FIELD_PREP(CON_NFI_SEC, nand->ecc.steps) |
++		    CON_NFI_BWR);
++
++	for (i = 0; i < nand->ecc.steps; i++) {
++		/* Write data */
++		if (buf)
++			mt7621_nfc_write_data(nfc, page_data_ptr(nand, buf, i),
++					      nand->ecc.size);
++		else
++			mt7621_nfc_write_data_empty(nfc, nand->ecc.size);
++
++		/* Write FDM */
++		mt7621_nfc_write_data(nfc, oob_fdm_ptr(nand, i),
++				      NFI_FDM_SIZE);
++
++		/* Write dummy ECC parity data */
++		mt7621_nfc_write_data_empty(nfc, nfc->spare_per_sector -
++					    NFI_FDM_SIZE);
++	}
++
++	mt7621_nfc_wait_write_completion(nfc, nand);
++
++	nfi_write16(nfc, NFI_CON, 0);
++
++	return nand_prog_page_end_op(nand);
++}
++
++static int mt7621_nfc_write_oob_hwecc(struct mtd_info *mtd,
++				      struct nand_chip *nand, int page)
++{
++	return mt7621_nfc_write_page_hwecc(mtd, nand, NULL, 1, page);
++}
++
++static int mt7621_nfc_write_oob_raw(struct mtd_info *mtd,
++				    struct nand_chip *nand, int page)
++{
++	return mt7621_nfc_write_page_raw(mtd, nand, NULL, 1, page);
++}
++
++static int mt7621_nfc_ooblayout_free(struct mtd_info *mtd, int section,
++				     struct mtd_oob_region *oob_region)
++{
++	struct nand_chip *nand = mtd_to_nand(mtd);
++
++	if (section >= nand->ecc.steps)
++		return -ERANGE;
++
++	oob_region->length = NFI_FDM_SIZE - 1;
++	oob_region->offset = section * NFI_FDM_SIZE + 1;
++
++	return 0;
++}
++
++static int mt7621_nfc_ooblayout_ecc(struct mtd_info *mtd, int section,
++				    struct mtd_oob_region *oob_region)
++{
++	struct nand_chip *nand = mtd_to_nand(mtd);
++
++	if (section)
++		return -ERANGE;
++
++	oob_region->offset = NFI_FDM_SIZE * nand->ecc.steps;
++	oob_region->length = mtd->oobsize - oob_region->offset;
++
++	return 0;
++}
++
++static const struct mtd_ooblayout_ops mt7621_nfc_ooblayout_ops = {
++	.rfree = mt7621_nfc_ooblayout_free,
++	.ecc = mt7621_nfc_ooblayout_ecc,
++};
++
++/*
++ * This function will override the default one which is not supposed to be
++ * used for ECC syndrome based pages.
++ */
++static int mt7621_nfc_block_bad(struct mtd_info *mtd, loff_t ofs)
++{
++	struct nand_chip *nand = mtd_to_nand(mtd);
++	struct mtd_oob_ops ops;
++	int ret, i = 0;
++	u16 bad;
++
++	memset(&ops, 0, sizeof(ops));
++	ops.oobbuf = (uint8_t *)&bad;
++	ops.ooboffs = nand->badblockpos;
++	if (nand->options & NAND_BUSWIDTH_16) {
++		ops.ooboffs &= ~0x01;
++		ops.ooblen = 2;
++	} else {
++		ops.ooblen = 1;
++	}
++	ops.mode = MTD_OPS_RAW;
++
++	/* Read from first/last page(s) if necessary */
++	if (nand->bbt_options & NAND_BBT_SCANLASTPAGE)
++		ofs += mtd->erasesize - mtd->writesize;
++
++	do {
++		ret = mtd_read_oob(mtd, ofs, &ops);
++		if (ret)
++			return ret;
++
++		if (likely(nand->badblockbits == 8))
++			ret = bad != 0xFF;
++		else
++			ret = hweight8(bad) < nand->badblockbits;
++
++		i++;
++		ofs += mtd->writesize;
++	} while (!ret && (nand->bbt_options & NAND_BBT_SCAN2NDPAGE) && i < 2);
++
++	return ret;
++}
++
++static void mt7621_nfc_init_chip(struct mt7621_nfc *nfc)
++{
++	struct nand_chip *nand = &nfc->nand;
++	struct mtd_info *mtd;
++	int ret;
++
++	nand_set_controller_data(nand, nfc);
++
++	nand->options |= NAND_NO_SUBPAGE_WRITE;
++
++	nand->ecc.mode = NAND_ECC_HW_SYNDROME;
++	nand->ecc.read_page = mt7621_nfc_read_page_hwecc;
++	nand->ecc.read_page_raw = mt7621_nfc_read_page_raw;
++	nand->ecc.write_page = mt7621_nfc_write_page_hwecc;
++	nand->ecc.write_page_raw = mt7621_nfc_write_page_raw;
++	nand->ecc.read_oob = mt7621_nfc_read_oob_hwecc;
++	nand->ecc.read_oob_raw = mt7621_nfc_read_oob_raw;
++	nand->ecc.write_oob = mt7621_nfc_write_oob_hwecc;
++	nand->ecc.write_oob_raw = mt7621_nfc_write_oob_raw;
++
++	nand->dev_ready = mt7621_nfc_dev_ready;
++	nand->select_chip = mt7621_nfc_select_chip;
++	nand->write_byte = mt7621_nfc_write_byte;
++	nand->write_buf = mt7621_nfc_write_buf;
++	nand->read_byte = mt7621_nfc_read_byte;
++	nand->read_buf = mt7621_nfc_read_buf;
++	nand->cmd_ctrl = mt7621_nfc_cmd_ctrl;
++	nand->block_bad = mt7621_nfc_block_bad;
++
++	mtd = nand_to_mtd(nand);
++	mtd_set_ooblayout(mtd, &mt7621_nfc_ooblayout_ops);
++
++	/* Reset NFI master */
++	mt7621_nfc_hw_init(nfc);
++
++	ret = nand_scan_ident(mtd, 1, NULL);
++	if (ret)
++		return;
++
++	mt7621_nfc_attach_chip(nand);
++
++	ret = nand_scan_tail(mtd);
++	if (ret)
++		return;
++
++	nand_register(0, mtd);
++}
++
++static void mt7621_nfc_set_regs(struct mt7621_nfc *nfc)
++{
++	nfc->nfi_regs = (void __iomem *)CKSEG1ADDR(NFI_BASE);
++	nfc->ecc_regs = (void __iomem *)CKSEG1ADDR(NFI_ECC_BASE);
++}
++
++void mt7621_nfc_spl_init(struct mt7621_nfc *nfc)
++{
++	struct nand_chip *nand = &nfc->nand;
++
++	mt7621_nfc_set_regs(nfc);
++
++	nand_set_controller_data(nand, nfc);
++
++	nand->options |= NAND_NO_SUBPAGE_WRITE;
++
++	nand->ecc.mode = NAND_ECC_HW_SYNDROME;
++	nand->ecc.read_page = mt7621_nfc_read_page_hwecc;
++
++	nand->dev_ready = mt7621_nfc_dev_ready;
++	nand->select_chip = mt7621_nfc_select_chip;
++	nand->read_byte = mt7621_nfc_read_byte;
++	nand->read_buf = mt7621_nfc_read_buf;
++	nand->cmd_ctrl = mt7621_nfc_cmd_ctrl;
++
++	/* Reset NFI master */
++	mt7621_nfc_hw_init(nfc);
++}
++
++int mt7621_nfc_spl_post_init(struct mt7621_nfc *nfc)
++{
++	struct nand_chip *nand = &nfc->nand;
++	int nand_maf_id, nand_dev_id;
++	struct nand_flash_dev *type;
++
++	type = nand_get_flash_type(&nand->mtd, nand, &nand_maf_id,
++				   &nand_dev_id, NULL);
++
++	if (IS_ERR(type))
++		return PTR_ERR(type);
++
++	nand->numchips = 1;
++	nand->mtd.size = nand->chipsize;
++
++	return mt7621_nfc_attach_chip(nand);
++}
++
++void board_nand_init(void)
++{
++	mt7621_nfc_set_regs(&nfc_dev);
++	mt7621_nfc_init_chip(&nfc_dev);
++}
+diff --git a/drivers/mtd/nand/raw/mt7621_nand.h b/drivers/mtd/nand/raw/mt7621_nand.h
+new file mode 100644
+index 0000000000..af4bc55961
+--- /dev/null
++++ b/drivers/mtd/nand/raw/mt7621_nand.h
+@@ -0,0 +1,29 @@
++/* SPDX-License-Identifier: GPL-2.0 */
++/*
++ * Copyright (C) 2022 MediaTek Inc. All rights reserved.
++ *
++ * Author: Weijie Gao <[email protected]>
++ */
++
++#ifndef _MT7621_NAND_H_
++#define _MT7621_NAND_H_
++
++#include <linux/types.h>
++#include <linux/mtd/mtd.h>
++#include <linux/compiler.h>
++#include <linux/mtd/rawnand.h>
++
++struct mt7621_nfc {
++	struct nand_chip nand;
++
++	void __iomem *nfi_regs;
++	void __iomem *ecc_regs;
++
++	u32 spare_per_sector;
++};
++
++/* for SPL */
++void mt7621_nfc_spl_init(struct mt7621_nfc *nfc);
++int mt7621_nfc_spl_post_init(struct mt7621_nfc *nfc);
++
++#endif /* _MT7621_NAND_H_ */
+diff --git a/drivers/mtd/nand/raw/mt7621_nand_spl.c b/drivers/mtd/nand/raw/mt7621_nand_spl.c
+new file mode 100644
+index 0000000000..114fc8b7ce
+--- /dev/null
++++ b/drivers/mtd/nand/raw/mt7621_nand_spl.c
+@@ -0,0 +1,237 @@
++// SPDX-License-Identifier: GPL-2.0
++/*
++ * Copyright (C) 2022 MediaTek Inc. All rights reserved.
++ *
++ * Author: Weijie Gao <[email protected]>
++ */
++
++#include <image.h>
++#include <malloc.h>
++#include <linux/sizes.h>
++#include <linux/delay.h>
++#include <linux/mtd/rawnand.h>
++#include "mt7621_nand.h"
++
++static struct mt7621_nfc nfc_dev;
++static u8 *buffer;
++static int nand_valid;
++
++static void nand_command_lp(struct mtd_info *mtd, unsigned int command,
++			    int column, int page_addr)
++{
++	register struct nand_chip *chip = mtd_to_nand(mtd);
++
++	/* Command latch cycle */
++	chip->cmd_ctrl(mtd, command, NAND_NCE | NAND_CLE | NAND_CTRL_CHANGE);
++
++	if (column != -1 || page_addr != -1) {
++		int ctrl = NAND_CTRL_CHANGE | NAND_NCE | NAND_ALE;
++
++		/* Serially input address */
++		if (column != -1) {
++			chip->cmd_ctrl(mtd, column, ctrl);
++			ctrl &= ~NAND_CTRL_CHANGE;
++			if (command != NAND_CMD_READID)
++				chip->cmd_ctrl(mtd, column >> 8, ctrl);
++		}
++		if (page_addr != -1) {
++			chip->cmd_ctrl(mtd, page_addr, ctrl);
++			chip->cmd_ctrl(mtd, page_addr >> 8,
++				       NAND_NCE | NAND_ALE);
++			if (chip->options & NAND_ROW_ADDR_3)
++				chip->cmd_ctrl(mtd, page_addr >> 16,
++					       NAND_NCE | NAND_ALE);
++		}
++	}
++	chip->cmd_ctrl(mtd, NAND_CMD_NONE, NAND_NCE | NAND_CTRL_CHANGE);
++
++	/*
++	 * Program and erase have their own busy handlers status, sequential
++	 * in and status need no delay.
++	 */
++	switch (command) {
++	case NAND_CMD_STATUS:
++	case NAND_CMD_READID:
++	case NAND_CMD_SET_FEATURES:
++		return;
++
++	case NAND_CMD_READ0:
++		chip->cmd_ctrl(mtd, NAND_CMD_READSTART,
++			       NAND_NCE | NAND_CLE | NAND_CTRL_CHANGE);
++		chip->cmd_ctrl(mtd, NAND_CMD_NONE,
++			       NAND_NCE | NAND_CTRL_CHANGE);
++	}
++
++	/*
++	 * Apply this short delay always to ensure that we do wait tWB in
++	 * any case on any machine.
++	 */
++	ndelay(100);
++
++	nand_wait_ready(mtd);
++}
++
++static int nfc_read_page_hwecc(struct mtd_info *mtd, void *buf,
++			       unsigned int page)
++{
++	struct nand_chip *chip = mtd_to_nand(mtd);
++	int ret;
++
++	chip->cmdfunc(mtd, NAND_CMD_READ0, 0x0, page);
++
++	ret = chip->ecc.read_page(mtd, chip, buf, 1, page);
++	if (ret < 0 || ret > chip->ecc.strength)
++		return -1;
++
++	return 0;
++}
++
++static int nfc_read_oob_hwecc(struct mtd_info *mtd, void *buf, u32 len,
++			      unsigned int page)
++{
++	struct nand_chip *chip = mtd_to_nand(mtd);
++	int ret;
++
++	chip->cmdfunc(mtd, NAND_CMD_READ0, 0x0, page);
++
++	ret = chip->ecc.read_page(mtd, chip, NULL, 1, page);
++	if (ret < 0)
++		return -1;
++
++	if (len > mtd->oobsize)
++		len = mtd->oobsize;
++
++	memcpy(buf, chip->oob_poi, len);
++
++	return 0;
++}
++
++static int nfc_check_bad_block(struct mtd_info *mtd, unsigned int page)
++{
++	struct nand_chip *chip = mtd_to_nand(mtd);
++	u32 pages_per_block, i = 0;
++	int ret;
++	u8 bad;
++
++	pages_per_block = 1 << (mtd->erasesize_shift - mtd->writesize_shift);
++
++	/* Read from first/last page(s) if necessary */
++	if (chip->bbt_options & NAND_BBT_SCANLASTPAGE) {
++		page += pages_per_block - 1;
++		if (chip->bbt_options & NAND_BBT_SCAN2NDPAGE)
++			page--;
++	}
++
++	do {
++		ret = nfc_read_oob_hwecc(mtd, &bad, 1, page);
++		if (ret)
++			return ret;
++
++		ret = bad != 0xFF;
++
++		i++;
++		page++;
++	} while (!ret && (chip->bbt_options & NAND_BBT_SCAN2NDPAGE) && i < 2);
++
++	return ret;
++}
++
++int nand_spl_load_image(uint32_t offs, unsigned int size, void *dest)
++{
++	struct mt7621_nfc *nfc = &nfc_dev;
++	struct nand_chip *chip = &nfc->nand;
++	struct mtd_info *mtd = &chip->mtd;
++	u32 addr, col, page, chksz;
++	bool check_bad = true;
++
++	if (!nand_valid)
++		return -ENODEV;
++
++	while (size) {
++		if (check_bad || !(offs & mtd->erasesize_mask)) {
++			addr = offs & (~mtd->erasesize_mask);
++			page = addr >> mtd->writesize_shift;
++			if (nfc_check_bad_block(mtd, page)) {
++				/* Skip bad block */
++				if (addr >= mtd->size - mtd->erasesize)
++					return -1;
++
++				offs += mtd->erasesize;
++				continue;
++			}
++
++			check_bad = false;
++		}
++
++		col = offs & mtd->writesize_mask;
++		page = offs >> mtd->writesize_shift;
++		chksz = min(mtd->writesize - col, (uint32_t)size);
++
++		if (unlikely(chksz < mtd->writesize)) {
++			/* Not reading a full page */
++			if (nfc_read_page_hwecc(mtd, buffer, page))
++				return -1;
++
++			memcpy(dest, buffer + col, chksz);
++		} else {
++			if (nfc_read_page_hwecc(mtd, dest, page))
++				return -1;
++		}
++
++		dest += chksz;
++		offs += chksz;
++		size -= chksz;
++	}
++
++	return 0;
++}
++
++int nand_default_bbt(struct mtd_info *mtd)
++{
++	return 0;
++}
++
++unsigned long nand_size(void)
++{
++	if (!nand_valid)
++		return 0;
++
++	/* Unlikely that NAND size > 2GBytes */
++	if (nfc_dev.nand.chipsize <= SZ_2G)
++		return nfc_dev.nand.chipsize;
++
++	return SZ_2G;
++}
++
++void nand_deselect(void)
++{
++}
++
++void nand_init(void)
++{
++	struct mtd_info *mtd;
++	struct nand_chip *chip;
++
++	if (nand_valid)
++		return;
++
++	mt7621_nfc_spl_init(&nfc_dev);
++
++	chip = &nfc_dev.nand;
++	mtd = &chip->mtd;
++	chip->cmdfunc = nand_command_lp;
++
++	if (mt7621_nfc_spl_post_init(&nfc_dev))
++		return;
++
++	mtd->erasesize_shift = ffs(mtd->erasesize) - 1;
++	mtd->writesize_shift = ffs(mtd->writesize) - 1;
++	mtd->erasesize_mask = (1 << mtd->erasesize_shift) - 1;
++	mtd->writesize_mask = (1 << mtd->writesize_shift) - 1;
++
++	buffer = malloc(mtd->writesize);
++	if (!buffer)
++		return;
++
++	nand_valid = 1;
++}
+-- 
+2.36.1
+

package/boot/uboot-mediatek/patches/001-mtk-0021-spl-allow-using-nand-base-without-standard-nand-driv.patch

@@ -0,0 +1,29 @@
+From 474082b03ae2b569f9daf43f78b91b57f7a1ae50 Mon Sep 17 00:00:00 2001
+From: Weijie Gao <[email protected]>
+Date: Fri, 20 May 2022 11:23:53 +0800
+Subject: [PATCH 21/25] spl: allow using nand base without standard nand driver
+
+This patch removes the dependency to SPL_NAND_DRIVERS for SPL_NAND_BASE to
+allow minimal spl nand driver to use nand base for probing NAND chips.
+
+Signed-off-by: Weijie Gao <[email protected]>
+---
+ common/spl/Kconfig | 2 +-
+ 1 file changed, 1 insertion(+), 1 deletion(-)
+
+diff --git a/common/spl/Kconfig b/common/spl/Kconfig
+index 50ff113cab..eee9315e43 100644
+--- a/common/spl/Kconfig
++++ b/common/spl/Kconfig
+@@ -764,7 +764,7 @@ config SPL_NAND_SIMPLE
+ 	  expose the cmd_ctrl() interface.
+ 
+ config SPL_NAND_BASE
+-	depends on SPL_NAND_DRIVERS
++	depends on SPL_NAND_SUPPORT
+ 	bool "Use Base NAND Driver"
+ 	help
+ 	  Include nand_base.c in the SPL.
+-- 
+2.36.1
+

package/boot/uboot-mediatek/patches/001-mtk-0022-spl-spl_legacy-fix-the-use-of-SPL_COPY_PAYLOAD_ONLY.patch

@@ -0,0 +1,69 @@
+From ba9c81e720f39b5dbc14592252bfc9402afee79d Mon Sep 17 00:00:00 2001
+From: Weijie Gao <[email protected]>
+Date: Fri, 20 May 2022 11:23:58 +0800
+Subject: [PATCH 22/25] spl: spl_legacy: fix the use of SPL_COPY_PAYLOAD_ONLY
+
+If the payload is compressed, SPL_COPY_PAYLOAD_ONLY should always be set
+since the payload will not be directly read to its load address. The
+payload will first be read to a temporary buffer, and then be decompressed
+to its load address, without image header.
+
+If the payload is not compressed, and SPL_COPY_PAYLOAD_ONLY is set, image
+header should be skipped on loading. Otherwise image header should also be
+read to its load address.
+
+Reviewed-by: Daniel Schwierzeck <[email protected]>
+Signed-off-by: Weijie Gao <[email protected]>
+---
+ common/spl/spl_legacy.c | 21 +++++++++++++++++++--
+ 1 file changed, 19 insertions(+), 2 deletions(-)
+
+diff --git a/common/spl/spl_legacy.c b/common/spl/spl_legacy.c
+index 2ec7154423..ae8731c782 100644
+--- a/common/spl/spl_legacy.c
++++ b/common/spl/spl_legacy.c
+@@ -88,15 +88,29 @@ int spl_load_legacy_img(struct spl_image_info *spl_image,
+ 	/* Read header into local struct */
+ 	load->read(load, header, sizeof(hdr), &hdr);
+ 
++	/*
++	 * If the payload is compressed, the decompressed data should be
++	 * directly write to its load address.
++	 */
++	if (spl_image_get_comp(&hdr) != IH_COMP_NONE)
++		spl_image->flags |= SPL_COPY_PAYLOAD_ONLY;
++
+ 	ret = spl_parse_image_header(spl_image, bootdev, &hdr);
+ 	if (ret)
+ 		return ret;
+ 
+-	dataptr = header + sizeof(hdr);
+-
+ 	/* Read image */
+ 	switch (spl_image_get_comp(&hdr)) {
+ 	case IH_COMP_NONE:
++		dataptr = header;
++
++		/*
++		 * Image header will be skipped only if SPL_COPY_PAYLOAD_ONLY
++		 * is set
++		 */
++		if (spl_image->flags & SPL_COPY_PAYLOAD_ONLY)
++			dataptr += sizeof(hdr);
++
+ 		load->read(load, dataptr, spl_image->size,
+ 			   (void *)(unsigned long)spl_image->load_addr);
+ 		break;
+@@ -104,6 +118,9 @@ int spl_load_legacy_img(struct spl_image_info *spl_image,
+ 	case IH_COMP_LZMA:
+ 		lzma_len = LZMA_LEN;
+ 
++		/* dataptr points to compressed payload  */
++		dataptr = header + sizeof(hdr);
++
+ 		debug("LZMA: Decompressing %08lx to %08lx\n",
+ 		      dataptr, spl_image->load_addr);
+ 		src = malloc(spl_image->size);
+-- 
+2.36.1
+

package/boot/uboot-mediatek/patches/001-mtk-0023-spl-nand-support-loading-legacy-image-with-payload-c.patch

@@ -0,0 +1,64 @@
+From b4e5137067d34a099efd921532ece177560789ca Mon Sep 17 00:00:00 2001
+From: Weijie Gao <[email protected]>
+Date: Fri, 20 May 2022 11:24:04 +0800
+Subject: [PATCH 23/25] spl: nand: support loading legacy image with payload
+ compressed
+
+Add support to load legacy image with payload compressed. This redirects
+the boot flow for all legacy images. If the payload is not compressed, the
+actual behavior will remain unchanged.
+
+Reviewed-by: Daniel Schwierzeck <[email protected]>
+Signed-off-by: Weijie Gao <[email protected]>
+---
+ common/spl/spl_nand.c | 27 +++++++++++++++++++++++++++
+ 1 file changed, 27 insertions(+)
+
+diff --git a/common/spl/spl_nand.c b/common/spl/spl_nand.c
+index 82a10ffa63..7b7579a2df 100644
+--- a/common/spl/spl_nand.c
++++ b/common/spl/spl_nand.c
+@@ -56,6 +56,21 @@ static ulong spl_nand_fit_read(struct spl_load_info *load, ulong offs,
+ 	return size / load->bl_len;
+ }
+ 
++static ulong spl_nand_legacy_read(struct spl_load_info *load, ulong offs,
++				  ulong size, void *dst)
++{
++	int err;
++
++	debug("%s: offs %lx, size %lx, dst %p\n",
++	      __func__, offs, size, dst);
++
++	err = nand_spl_load_image(offs, size, dst);
++	if (err)
++		return 0;
++
++	return size;
++}
++
+ struct mtd_info * __weak nand_get_mtd(void)
+ {
+ 	return NULL;
+@@ -93,6 +108,18 @@ static int spl_nand_load_element(struct spl_image_info *spl_image,
+ 		load.bl_len = bl_len;
+ 		load.read = spl_nand_fit_read;
+ 		return spl_load_imx_container(spl_image, &load, offset / bl_len);
++	} else if (IS_ENABLED(CONFIG_SPL_LEGACY_IMAGE_FORMAT) &&
++		   image_get_magic(header) == IH_MAGIC) {
++		struct spl_load_info load;
++
++		debug("Found legacy image\n");
++		load.dev = NULL;
++		load.priv = NULL;
++		load.filename = NULL;
++		load.bl_len = 1;
++		load.read = spl_nand_legacy_read;
++
++		return spl_load_legacy_img(spl_image, bootdev, &load, offset);
+ 	} else {
+ 		err = spl_parse_image_header(spl_image, bootdev, header);
+ 		if (err)
+-- 
+2.36.1
+

package/boot/uboot-mediatek/patches/001-mtk-0024-tools-mtk_image-add-support-for-MT7621-NAND-images.patch

@@ -0,0 +1,340 @@
+From 18dd1ef9417d0880f2f492b55bd4d9ede499f137 Mon Sep 17 00:00:00 2001
+From: Weijie Gao <[email protected]>
+Date: Fri, 20 May 2022 11:24:10 +0800
+Subject: [PATCH 24/25] tools: mtk_image: add support for MT7621 NAND images
+
+The BootROM of MT7621 requires a image header for SPL to record its size
+and load address when booting from NAND.
+
+To create such an image, one can use the following command line:
+mkimage -T mtk_image -a 0x80200000 -e 0x80200000 -n "mt7621=1"
+-d u-boot-spl-ddr.bin u-boot-spl-ddr.img
+
+Reviewed-by: Daniel Schwierzeck <[email protected]>
+Signed-off-by: Weijie Gao <[email protected]>
+---
+ tools/mtk_image.c | 182 ++++++++++++++++++++++++++++++++++++++++++++++
+ tools/mtk_image.h |  24 ++++++
+ 2 files changed, 206 insertions(+)
+
+diff --git a/tools/mtk_image.c b/tools/mtk_image.c
+index 418c5fd54b..de5ce4d964 100644
+--- a/tools/mtk_image.c
++++ b/tools/mtk_image.c
+@@ -6,7 +6,9 @@
+  * Author: Weijie Gao <[email protected]>
+  */
+ 
++#include <time.h>
+ #include <image.h>
++#include <u-boot/crc.h>
+ #include <u-boot/sha256.h>
+ #include "imagetool.h"
+ #include "mtk_image.h"
+@@ -251,17 +253,45 @@ static uint32_t img_size;
+ static enum brlyt_img_type hdr_media;
+ static uint32_t hdr_offset;
+ static int use_lk_hdr;
++static int use_mt7621_hdr;
+ static bool is_arm64_image;
+ 
+ /* LK image name */
+ static char lk_name[32] = "U-Boot";
+ 
++/* CRC32 normal table required by MT7621 image */
++static uint32_t crc32tbl[256];
++
+ /* NAND header selected by user */
+ static const union nand_boot_header *hdr_nand;
+ 
+ /* GFH header + 2 * 4KB pages of NAND */
+ static char hdr_tmp[sizeof(struct gfh_header) + 0x2000];
+ 
++static uint32_t crc32_normal_cal(uint32_t crc, const void *data, size_t length,
++				 const uint32_t *crc32c_table)
++{
++	const uint8_t *p = data;
++
++	while (length--)
++		crc = crc32c_table[(uint8_t)((crc >> 24) ^ *p++)] ^ (crc << 8);
++
++	return crc;
++}
++
++static void crc32_normal_init(uint32_t *crc32c_table, uint32_t poly)
++{
++	uint32_t v, i, j;
++
++	for (i = 0; i < 256; i++) {
++		v = i << 24;
++		for (j = 0; j < 8; j++)
++			v = (v << 1) ^ ((v & (1 << 31)) ? poly : 0);
++
++		crc32c_table[i] = v;
++	}
++}
++
+ static int mtk_image_check_image_types(uint8_t type)
+ {
+ 	if (type == IH_TYPE_MTKIMAGE)
+@@ -283,6 +313,7 @@ static int mtk_brom_parse_imagename(const char *imagename)
+ 	static const char *hdr_offs = "";
+ 	static const char *nandinfo = "";
+ 	static const char *lk = "";
++	static const char *mt7621 = "";
+ 	static const char *arm64_param = "";
+ 
+ 	key = buf;
+@@ -332,6 +363,9 @@ static int mtk_brom_parse_imagename(const char *imagename)
+ 			if (!strcmp(key, "lk"))
+ 				lk = val;
+ 
++			if (!strcmp(key, "mt7621"))
++				mt7621 = val;
++
+ 			if (!strcmp(key, "lkname"))
+ 				snprintf(lk_name, sizeof(lk_name), "%s", val);
+ 
+@@ -352,6 +386,13 @@ static int mtk_brom_parse_imagename(const char *imagename)
+ 		return 0;
+ 	}
+ 
++	/* if user specified MT7621 image header, skip following checks */
++	if (mt7621 && mt7621[0] == '1') {
++		use_mt7621_hdr = 1;
++		free(buf);
++		return 0;
++	}
++
+ 	/* parse media type */
+ 	for (i = 0; i < ARRAY_SIZE(brom_images); i++) {
+ 		if (!strcmp(brom_images[i].name, media)) {
+@@ -419,6 +460,13 @@ static int mtk_image_vrec_header(struct image_tool_params *params,
+ 		return 0;
+ 	}
+ 
++	if (use_mt7621_hdr) {
++		tparams->header_size = image_get_header_size();
++		tparams->hdr = &hdr_tmp;
++		memset(&hdr_tmp, 0, tparams->header_size);
++		return 0;
++	}
++
+ 	if (hdr_media == BRLYT_TYPE_NAND || hdr_media == BRLYT_TYPE_SNAND)
+ 		tparams->header_size = 2 * le16_to_cpu(hdr_nand->pagesize);
+ 	else
+@@ -579,9 +627,90 @@ static int mtk_image_verify_nand_header(const uint8_t *ptr, int print)
+ 	return 0;
+ }
+ 
++static uint32_t crc32be_cal(const void *data, size_t length)
++{
++	uint32_t crc = 0;
++	uint8_t c;
++
++	if (crc32tbl[1] != MT7621_IH_CRC_POLYNOMIAL)
++		crc32_normal_init(crc32tbl, MT7621_IH_CRC_POLYNOMIAL);
++
++	crc = crc32_normal_cal(crc, data, length, crc32tbl);
++
++	for (; length; length >>= 8) {
++		c = length & 0xff;
++		crc = crc32_normal_cal(crc, &c, 1, crc32tbl);
++	}
++
++	return ~crc;
++}
++
++static int mtk_image_verify_mt7621_header(const uint8_t *ptr, int print)
++{
++	const image_header_t *hdr = (const image_header_t *)ptr;
++	struct mt7621_nand_header *nhdr;
++	uint32_t spl_size, crcval;
++	image_header_t header;
++	int ret;
++
++	spl_size = image_get_size(hdr);
++
++	if (spl_size > img_size) {
++		if (print)
++			printf("Incomplete SPL image\n");
++		return -1;
++	}
++
++	ret = image_check_hcrc(hdr);
++	if (!ret) {
++		if (print)
++			printf("Bad header CRC\n");
++		return -1;
++	}
++
++	ret = image_check_dcrc(hdr);
++	if (!ret) {
++		if (print)
++			printf("Bad data CRC\n");
++		return -1;
++	}
++
++	/* Copy header so we can blank CRC field for re-calculation */
++	memmove(&header, hdr, image_get_header_size());
++	image_set_hcrc(&header, 0);
++
++	nhdr = (struct mt7621_nand_header *)header.ih_name;
++	crcval = be32_to_cpu(nhdr->crc);
++	nhdr->crc = 0;
++
++	if (crcval != crc32be_cal(&header, image_get_header_size())) {
++		if (print)
++			printf("Bad NAND header CRC\n");
++		return -1;
++	}
++
++	if (print) {
++		printf("Load Address: %08x\n", image_get_load(hdr));
++
++		printf("Image Name:   %.*s\n", MT7621_IH_NMLEN,
++		       image_get_name(hdr));
++
++		if (IMAGE_ENABLE_TIMESTAMP) {
++			printf("Created:      ");
++			genimg_print_time((time_t)image_get_time(hdr));
++		}
++
++		printf("Data Size:    ");
++		genimg_print_size(image_get_data_size(hdr));
++	}
++
++	return 0;
++}
++
+ static int mtk_image_verify_header(unsigned char *ptr, int image_size,
+ 				   struct image_tool_params *params)
+ {
++	image_header_t *hdr = (image_header_t *)ptr;
+ 	union lk_hdr *lk = (union lk_hdr *)ptr;
+ 
+ 	/* nothing to verify for LK image header */
+@@ -590,6 +719,9 @@ static int mtk_image_verify_header(unsigned char *ptr, int image_size,
+ 
+ 	img_size = image_size;
+ 
++	if (image_get_magic(hdr) == IH_MAGIC)
++		return mtk_image_verify_mt7621_header(ptr, 0);
++
+ 	if (!strcmp((char *)ptr, NAND_BOOT_NAME))
+ 		return mtk_image_verify_nand_header(ptr, 0);
+ 	else
+@@ -600,6 +732,7 @@ static int mtk_image_verify_header(unsigned char *ptr, int image_size,
+ 
+ static void mtk_image_print_header(const void *ptr)
+ {
++	image_header_t *hdr = (image_header_t *)ptr;
+ 	union lk_hdr *lk = (union lk_hdr *)ptr;
+ 
+ 	if (le32_to_cpu(lk->magic) == LK_PART_MAGIC) {
+@@ -610,6 +743,11 @@ static void mtk_image_print_header(const void *ptr)
+ 
+ 	printf("Image Type:   MediaTek BootROM Loadable Image\n");
+ 
++	if (image_get_magic(hdr) == IH_MAGIC) {
++		mtk_image_verify_mt7621_header(ptr, 1);
++		return;
++	}
++
+ 	if (!strcmp((char *)ptr, NAND_BOOT_NAME))
+ 		mtk_image_verify_nand_header(ptr, 1);
+ 	else
+@@ -773,6 +911,45 @@ static void mtk_image_set_nand_header(void *ptr, off_t filesize,
+ 		 filesize - 2 * le16_to_cpu(hdr_nand->pagesize) - SHA256_SUM_LEN);
+ }
+ 
++static void mtk_image_set_mt7621_header(void *ptr, off_t filesize,
++					uint32_t loadaddr)
++{
++	image_header_t *hdr = (image_header_t *)ptr;
++	struct mt7621_stage1_header *shdr;
++	struct mt7621_nand_header *nhdr;
++	uint32_t datasize, crcval;
++
++	datasize = filesize - image_get_header_size();
++	nhdr = (struct mt7621_nand_header *)hdr->ih_name;
++	shdr = (struct mt7621_stage1_header *)(ptr + image_get_header_size());
++
++	shdr->ep = cpu_to_be32(loadaddr);
++	shdr->stage_size = cpu_to_be32(datasize);
++
++	image_set_magic(hdr, IH_MAGIC);
++	image_set_time(hdr, time(NULL));
++	image_set_size(hdr, datasize);
++	image_set_load(hdr, loadaddr);
++	image_set_ep(hdr, loadaddr);
++	image_set_os(hdr, IH_OS_U_BOOT);
++	image_set_arch(hdr, IH_ARCH_MIPS);
++	image_set_type(hdr, IH_TYPE_STANDALONE);
++	image_set_comp(hdr, IH_COMP_NONE);
++
++	crcval = crc32(0, (uint8_t *)shdr, datasize);
++	image_set_dcrc(hdr, crcval);
++
++	strncpy(nhdr->ih_name, "MT7621 NAND", MT7621_IH_NMLEN);
++
++	nhdr->ih_stage_offset = cpu_to_be32(image_get_header_size());
++
++	crcval = crc32be_cal(hdr, image_get_header_size());
++	nhdr->crc = cpu_to_be32(crcval);
++
++	crcval = crc32(0, (uint8_t *)hdr, image_get_header_size());
++	image_set_hcrc(hdr, crcval);
++}
++
+ static void mtk_image_set_header(void *ptr, struct stat *sbuf, int ifd,
+ 				 struct image_tool_params *params)
+ {
+@@ -791,6 +968,11 @@ static void mtk_image_set_header(void *ptr, struct stat *sbuf, int ifd,
+ 	img_gen = true;
+ 	img_size = sbuf->st_size;
+ 
++	if (use_mt7621_hdr) {
++		mtk_image_set_mt7621_header(ptr, sbuf->st_size, params->addr);
++		return;
++	}
++
+ 	if (hdr_media == BRLYT_TYPE_NAND || hdr_media == BRLYT_TYPE_SNAND)
+ 		mtk_image_set_nand_header(ptr, sbuf->st_size, params->addr);
+ 	else
+diff --git a/tools/mtk_image.h b/tools/mtk_image.h
+index 7dda71ce88..d868545a33 100644
+--- a/tools/mtk_image.h
++++ b/tools/mtk_image.h
+@@ -200,4 +200,28 @@ union lk_hdr {
+ 
+ #define LK_PART_MAGIC		0x58881688
+ 
++/* MT7621 NAND SPL image header */
++
++#define MT7621_IH_NMLEN			12
++#define MT7621_IH_CRC_POLYNOMIAL	0x04c11db7
++
++struct mt7621_nand_header {
++	char ih_name[MT7621_IH_NMLEN];
++	uint32_t nand_ac_timing;
++	uint32_t ih_stage_offset;
++	uint32_t ih_bootloader_offset;
++	uint32_t nand_info_1_data;
++	uint32_t crc;
++};
++
++struct mt7621_stage1_header {
++	uint32_t jump_insn[2];
++	uint32_t ep;
++	uint32_t stage_size;
++	uint32_t has_stage2;
++	uint32_t next_ep;
++	uint32_t next_size;
++	uint32_t next_offset;
++};
++
+ #endif /* _MTK_IMAGE_H */
+-- 
+2.36.1
+

package/boot/uboot-mediatek/patches/001-mtk-0025-MAINTAINERS-update-maintainer-for-MediaTek-MIPS-plat.patch

@@ -0,0 +1,44 @@
+From e5fc4022af3cfd59e3459276305671a595ac5ff0 Mon Sep 17 00:00:00 2001
+From: Weijie Gao <[email protected]>
+Date: Fri, 20 May 2022 11:24:16 +0800
+Subject: [PATCH 25/25] MAINTAINERS: update maintainer for MediaTek MIPS
+ platform
+
+Update maintainer for MediaTek MIPS platform
+
+Signed-off-by: Weijie Gao <[email protected]>
+---
+ MAINTAINERS | 8 ++++++++
+ 1 file changed, 8 insertions(+)
+
+diff --git a/MAINTAINERS b/MAINTAINERS
+index 7f27ff4c20..d8d060bd92 100644
+--- a/MAINTAINERS
++++ b/MAINTAINERS
+@@ -1007,15 +1007,23 @@ R:	GSS_MTK_Uboot_upstream <[email protected]>
+ S:	Maintained
+ F:	arch/mips/mach-mtmips/
+ F:	arch/mips/dts/mt7620.dtsi
++F:	arch/mips/dts/mt7621.dtsi
+ F:	arch/mips/dts/mt7620-u-boot.dtsi
++F:	arch/mips/dts/mt7621-u-boot.dtsi
+ F:	include/configs/mt7620.h
++F:	include/configs/mt7621.h
+ F:	include/dt-bindings/clock/mt7620-clk.h
++F:	include/dt-bindings/clock/mt7621-clk.h
+ F:	include/dt-bindings/clock/mt7628-clk.h
+ F:	include/dt-bindings/reset/mt7620-reset.h
++F:	include/dt-bindings/reset/mt7621-reset.h
+ F:	include/dt-bindings/reset/mt7628-reset.h
+ F:	drivers/clk/mtmips/
+ F:	drivers/pinctrl/mtmips/
+ F:	drivers/gpio/mt7620_gpio.c
++F:	drivers/mtd/nand/raw/mt7621_nand.c
++F:	drivers/mtd/nand/raw/mt7621_nand.h
++F:	drivers/mtd/nand/raw/mt7621_nand_spl.c
+ F:	drivers/net/mt7620-eth.c
+ F:	drivers/phy/mt7620-usb-phy.c
+ F:	drivers/reset/reset-mtmips.c
+-- 
+2.36.1
+

package/boot/uboot-mediatek/patches/412-add-ubnt-unifi-6-lr.patch

@@ -420,7 +420,7 @@
  
  DECLARE_GLOBAL_DATA_PTR;
  
-@@ -392,6 +393,21 @@ static int initr_onenand(void)
+@@ -392,6 +393,20 @@ static int initr_onenand(void)
  }
  #endif
  
@@ -430,11 +430,10 @@
 +{
 +	struct udevice *new;
 +
-+	spi_flash_probe_bus_cs(CONFIG_SF_DEFAULT_BUS,
-+				CONFIG_SF_DEFAULT_CS,
-+				CONFIG_SF_DEFAULT_SPEED,
-+				CONFIG_SF_DEFAULT_MODE,
-+				&new);
++spi_flash_probe_bus_cs(CONFIG_SF_DEFAULT_BUS,
++			CONFIG_SF_DEFAULT_CS,
++			&new);
++
 +	return 0;
 +}
 +#endif

package/boot/uboot-ramips/patches/0001-add-support-for-RAVPower-RP-WD009.patch → package/boot/uboot-mediatek/patches/420-add-support-for-RAVPower-RP-WD009.patch

@@ -20,23 +20,16 @@ Subject: [PATCH] add support for RAVPower RP-WD009
  create mode 100644 configs/ravpower-rp-wd009-ram_defconfig
  create mode 100644 include/configs/ravpower-rp-wd009.h
 
-diff --git a/arch/mips/dts/Makefile b/arch/mips/dts/Makefile
-index c9d75596f2..23868ae1d2 100644
 --- a/arch/mips/dts/Makefile
 +++ b/arch/mips/dts/Makefile
-@@ -2,7 +2,8 @@
- 
- dtb-$(CONFIG_ARCH_MTMIPS) += \
- 	gardena-smart-gateway-mt7688.dtb \
--	linkit-smart-7688.dtb
-+	linkit-smart-7688.dtb \
-+	ravpower-rp-wd009.dtb
- dtb-$(CONFIG_TARGET_AP121) += ap121.dtb
- dtb-$(CONFIG_TARGET_AP143) += ap143.dtb
- dtb-$(CONFIG_TARGET_AP152) += ap152.dtb
-diff --git a/arch/mips/dts/ravpower-rp-wd009.dts b/arch/mips/dts/ravpower-rp-wd009.dts
-new file mode 100644
-index 0000000000..b271d5bfbc
+@@ -25,6 +25,7 @@ dtb-$(CONFIG_TARGET_OCTEON_EBB7304) += m
+ dtb-$(CONFIG_TARGET_OCTEON_NIC23) += mrvl,octeon-nic23.dtb
+ dtb-$(CONFIG_BOARD_NETGEAR_CG3100D) += netgear,cg3100d.dtb
+ dtb-$(CONFIG_BOARD_NETGEAR_DGND3700V2) += netgear,dgnd3700v2.dtb
++dtb-$(CONFIG_BOARD_RAVPOWER_RP_WD009) += ravpower-rp-wd009.dtb
+ dtb-$(CONFIG_BOARD_SAGEM_FAST1704) += sagem,[email protected]
+ dtb-$(CONFIG_BOARD_SFR_NB4_SER) += sfr,nb4-ser.dtb
+ dtb-$(CONFIG_BOARD_TPLINK_WDR4300) += tplink_wdr4300.dtb
 --- /dev/null
 +++ b/arch/mips/dts/ravpower-rp-wd009.dts
 @@ -0,0 +1,50 @@
@@ -90,36 +83,6 @@ index 0000000000..b271d5bfbc
 +	pinctrl-names = "default";
 +	pinctrl-0 = <&ephy_router_mode>;
 +};
-diff --git a/arch/mips/mach-mtmips/Kconfig b/arch/mips/mach-mtmips/Kconfig
-index c8dcf19c0d..85ac8878ab 100644
---- a/arch/mips/mach-mtmips/Kconfig
-+++ b/arch/mips/mach-mtmips/Kconfig
-@@ -32,6 +32,14 @@ config BOARD_GARDENA_SMART_GATEWAY_MT7688
- 	  GARDENA smart Gateway boards have a MT7688 SoC with 128 MiB of RAM
- 	  and 8 MiB of flash (SPI NOR) and additional SPI NAND storage.
- 
-+config BOARD_RAVPOWER_RP_WD009
-+	bool "RAVPower RP-WD009"
-+	depends on SOC_MT7628
-+	select BOARD_LATE_INIT
-+	select SUPPORTS_BOOT_RAM
-+	help
-+	  RAVPower RP-WD009
-+
- config BOARD_LINKIT_SMART_7688
- 	bool "LinkIt Smart 7688"
- 	depends on SOC_MT7628
-@@ -133,6 +141,7 @@ config SUPPORTS_BOOT_RAM
- 	bool
- 
- source "board/gardena/smart-gateway-mt7688/Kconfig"
-+source "board/ravpower/rp-wd009/Kconfig"
- source "board/seeed/linkit-smart-7688/Kconfig"
- 
- endmenu
-diff --git a/board/ravpower/rp-wd009/Kconfig b/board/ravpower/rp-wd009/Kconfig
-new file mode 100644
-index 0000000000..111f8e4478
 --- /dev/null
 +++ b/board/ravpower/rp-wd009/Kconfig
 @@ -0,0 +1,12 @@
@@ -135,18 +98,12 @@ index 0000000000..111f8e4478
 +	default "ravpower-rp-wd009"
 +
 +endif
-diff --git a/board/ravpower/rp-wd009/Makefile b/board/ravpower/rp-wd009/Makefile
-new file mode 100644
-index 0000000000..70cd7a8e56
 --- /dev/null
 +++ b/board/ravpower/rp-wd009/Makefile
 @@ -0,0 +1,3 @@
 +# SPDX-License-Identifier: GPL-2.0+
 +
 +obj-y += board.o
-diff --git a/board/ravpower/rp-wd009/board.c b/board/ravpower/rp-wd009/board.c
-new file mode 100644
-index 0000000000..eabcf85735
 --- /dev/null
 +++ b/board/ravpower/rp-wd009/board.c
 @@ -0,0 +1,16 @@
@@ -166,16 +123,14 @@ index 0000000000..eabcf85735
 +{
 +	return 0;
 +}
-diff --git a/configs/ravpower-rp-wd009-ram_defconfig b/configs/ravpower-rp-wd009-ram_defconfig
-new file mode 100644
-index 0000000000..08cbf40638
 --- /dev/null
 +++ b/configs/ravpower-rp-wd009-ram_defconfig
-@@ -0,0 +1,59 @@
+@@ -0,0 +1,61 @@
 +CONFIG_MIPS=y
-+CONFIG_SYS_TEXT_BASE=0x80010000
++CONFIG_SYS_LOAD_ADDR=0x80010000
 +CONFIG_NR_DRAM_BANKS=1
 +CONFIG_ARCH_MTMIPS=y
++CONFIG_SOC_MT7628=y
 +CONFIG_MIPS_BOOT_FDT=y
 +CONFIG_LEGACY_IMAGE_FORMAT=y
 +CONFIG_OF_STDOUT_VIA_ALIAS=y
@@ -185,7 +140,6 @@ index 0000000000..08cbf40638
 +CONFIG_SYS_CONSOLE_INFO_QUIET=y
 +CONFIG_VERSION_VARIABLE=y
 +CONFIG_BOARD_RAVPOWER_RP_WD009=y
-+CONFIG_BOARD_EARLY_INIT_F=y
 +CONFIG_HUSH_PARSER=y
 +CONFIG_CMD_LICENSE=y
 +# CONFIG_CMD_ELF is not set
@@ -203,6 +157,8 @@ index 0000000000..08cbf40638
 +CONFIG_CMD_TIME=y
 +CONFIG_CMD_UUID=y
 +CONFIG_CMD_MTDPARTS=y
++CONFIG_FIT=y
++CONFIG_FIT_ENABLE_SHA256_SUPPORT=y
 +CONFIG_MTDIDS_DEFAULT="nor0=spi0.0"
 +CONFIG_MTDPARTS_DEFAULT="spi0.0:192k(factory-uboot),64k(config),64k(factory),1536k(loader),64k(params),64k(user_backup),64k(user),14272k(firmware),64k(mode)"
 +CONFIG_DEFAULT_DEVICE_TREE="ravpower-rp-wd009"
@@ -231,12 +187,9 @@ index 0000000000..08cbf40638
 +CONFIG_WDT_MT7621=y
 +CONFIG_LZMA=y
 +CONFIG_BAUDRATE=57600
-diff --git a/include/configs/ravpower-rp-wd009.h b/include/configs/ravpower-rp-wd009.h
-new file mode 100644
-index 0000000000..bb4145197c
 --- /dev/null
 +++ b/include/configs/ravpower-rp-wd009.h
-@@ -0,0 +1,48 @@
+@@ -0,0 +1,42 @@
 +/* SPDX-License-Identifier: GPL-2.0+ */
 +/*
 + * Copyright (C) 2018 Stefan Roese <[email protected]>
@@ -251,8 +204,6 @@ index 0000000000..bb4145197c
 +/* RAM */
 +#define CONFIG_SYS_SDRAM_BASE		0x80000000
 +
-+#define CONFIG_SYS_LOAD_ADDR		CONFIG_SYS_SDRAM_BASE + 0x100000
-+
 +#define CONFIG_SYS_INIT_SP_OFFSET	0x400000
 +
 +#ifdef CONFIG_BOOT_RAM
@@ -269,13 +220,9 @@ index 0000000000..bb4145197c
 +
 +/* Memory usage */
 +#define CONFIG_SYS_MAXARGS		64
-+#define CONFIG_SYS_MALLOC_LEN		(16 * 1024 * 1024)
 +#define CONFIG_SYS_BOOTPARAMS_LEN	(128 * 1024)
 +#define CONFIG_SYS_CBSIZE		512
 +
-+/* U-Boot */
-+#define CONFIG_SYS_MONITOR_BASE		CONFIG_SYS_TEXT_BASE
-+
 +/* Environment settings */
 +
 +/*
@@ -285,6 +232,28 @@ index 0000000000..bb4145197c
 +#define CONFIG_BOARD_SIZE_LIMIT		CONFIG_ENV_OFFSET
 +
 +#endif /* __CONFIG_RAVPOWER_RP_WD009_H */
--- 
-2.27.0
-
+--- a/arch/mips/mach-mtmips/mt7628/Kconfig
++++ b/arch/mips/mach-mtmips/mt7628/Kconfig
+@@ -27,6 +27,14 @@ config BOARD_MT7628_RFB
+ 	  SPI-NOR flash, 1 built-in switch with 5 ports, 1 UART, 1 USB host,
+ 	  1 SDXC, 1 PCIe socket and JTAG pins.
+ 
++config BOARD_RAVPOWER_RP_WD009
++	bool "RAVPower RP-WD009"
++	depends on SOC_MT7628
++	select BOARD_LATE_INIT
++	select SUPPORTS_BOOT_RAM
++	help
++	  RAVPower RP-WD009
++
+ config BOARD_VOCORE2
+ 	bool "VoCore2"
+ 	select SPL_SERIAL
+@@ -53,6 +61,7 @@ config SYS_CONFIG_NAME
+ 	default "mt7628" if BOARD_MT7628_RFB
+ 
+ source "board/gardena/smart-gateway-mt7688/Kconfig"
++source "board/ravpower/rp-wd009/Kconfig"
+ source "board/seeed/linkit-smart-7688/Kconfig"
+ source "board/vocore/vocore2/Kconfig"
+ 

package/boot/uboot-ramips/Makefile

@@ -1,34 +0,0 @@
-# SPDX-License-Identifier: GPL-2.0-only
-
-include $(TOPDIR)/rules.mk
-include $(INCLUDE_DIR)/kernel.mk
-
-PKG_VERSION:=2020.04
-PKG_RELEASE:=$(AUTORELEASE)
-
-PKG_HASH:=fe732aaf037d9cc3c0909bad8362af366ae964bbdac6913a34081ff4ad565372
-
-include $(INCLUDE_DIR)/u-boot.mk
-include $(INCLUDE_DIR)/package.mk
-
-define U-Boot/Default
-  BUILD_TARGET:=ramips
-  UBOOT_IMAGE:=u-boot.bin
-endef
-
-define U-Boot/ravpower_rp-wd009
-  BUILD_DEVICES:=ravpower_rp-wd009
-  BUILD_SUBTARGET:=mt76x8
-  NAME:=RAVPower RP-WD009
-  UBOOT_CONFIG:=ravpower-rp-wd009-ram
-endef
-
-UBOOT_TARGETS := \
-	ravpower_rp-wd009
-
-define Build/InstallDev
-	$(INSTALL_DIR) $(STAGING_DIR_IMAGE)
-	$(INSTALL_BIN) $(PKG_BUILD_DIR)/$(UBOOT_IMAGE) $(STAGING_DIR_IMAGE)/$(VARIANT)-$(UBOOT_IMAGE)
-endef
-
-$(eval $(call BuildPackage/U-Boot))