openwrt/package/boot/uboot-mediatek/patches/101-01-arm-mediatek-retrieve-ram_base-from-dts-node-for-arm.patch

From 63336ec7fd7d480ac58a91f3b20d08bf1b3a13ad Mon Sep 17 00:00:00 2001
From: Weijie Gao <[email protected]>
Date: Wed, 19 Jul 2023 17:15:41 +0800
Subject: [PATCH 01/29] arm: mediatek: retrieve ram_base from dts node for
 armv8 platform

Now we use fdtdec_setup_mem_size_base() to get DRAM base from fdt ram node
and update gd->ram_base. CFG_SYS_SDRAM_BASE is unused and will be removed.

Also, since mt7622 always passes fdt to linux kernel, there's no need to
assign value to gd->bd->bi_boot_params.

Signed-off-by: Weijie Gao <[email protected]>
---
 arch/arm/dts/mt7981-emmc-rfb.dts     |  5 +++++
 arch/arm/dts/mt7981-rfb.dts          |  5 +++++
 arch/arm/dts/mt7981-sd-rfb.dts       |  5 +++++
 arch/arm/dts/mt7986a-bpi-r3-sd.dts   |  5 +++++
 arch/arm/dts/mt7986a-rfb.dts         |  5 +++++
 arch/arm/dts/mt7986a-sd-rfb.dts      |  5 +++++
 arch/arm/dts/mt7986b-rfb.dts         |  5 +++++
 arch/arm/dts/mt7986b-sd-rfb.dts      |  5 +++++
 arch/arm/mach-mediatek/mt7622/init.c | 13 +++++++++----
 arch/arm/mach-mediatek/mt7981/init.c | 11 +++++++++--
 arch/arm/mach-mediatek/mt7986/init.c | 11 +++++++++--
 board/mediatek/mt7622/mt7622_rfb.c   |  1 -
 include/configs/mt7622.h             | 10 ----------
 include/configs/mt7981.h             |  9 ---------
 include/configs/mt7986.h             |  9 ---------
 15 files changed, 67 insertions(+), 37 deletions(-)

--- a/arch/arm/dts/mt7981-emmc-rfb.dts
+++ b/arch/arm/dts/mt7981-emmc-rfb.dts
@@ -18,6 +18,11 @@
 		tick-timer = &timer0;
 	};
 
+	memory@40000000 {
+		device_type = "memory";
+		reg = <0x40000000 0x10000000>;
+	};
+
 	reg_3p3v: regulator-3p3v {
 		  compatible = "regulator-fixed";
 		  regulator-name = "fixed-3.3V";
--- a/arch/arm/dts/mt7981-rfb.dts
+++ b/arch/arm/dts/mt7981-rfb.dts
@@ -17,6 +17,11 @@
 		stdout-path = &uart0;
 		tick-timer = &timer0;
 	};
+
+	memory@40000000 {
+		device_type = "memory";
+		reg = <0x40000000 0x10000000>;
+	};
 };
 
 &uart0 {
--- a/arch/arm/dts/mt7981-sd-rfb.dts
+++ b/arch/arm/dts/mt7981-sd-rfb.dts
@@ -18,6 +18,11 @@
 		tick-timer = &timer0;
 	};
 
+	memory@40000000 {
+		device_type = "memory";
+		reg = <0x40000000 0x10000000>;
+	};
+
 	reg_3p3v: regulator-3p3v {
 		  compatible = "regulator-fixed";
 		  regulator-name = "fixed-3.3V";
--- a/arch/arm/dts/mt7986a-bpi-r3-sd.dts
+++ b/arch/arm/dts/mt7986a-bpi-r3-sd.dts
@@ -19,6 +19,11 @@
 		tick-timer = &timer0;
 	};
 
+	memory@40000000 {
+		device_type = "memory";
+		reg = <0x40000000 0x80000000>;
+	};
+
 	reg_3p3v: regulator-3p3v {
 		compatible = "regulator-fixed";
 		regulator-name = "fixed-3.3V";
--- a/arch/arm/dts/mt7986a-rfb.dts
+++ b/arch/arm/dts/mt7986a-rfb.dts
@@ -18,6 +18,11 @@
 		tick-timer = &timer0;
 	};
 
+	memory@40000000 {
+		device_type = "memory";
+		reg = <0x40000000 0x10000000>;
+	};
+
 	reg_1p8v: regulator-1p8v {
 		compatible = "regulator-fixed";
 		regulator-name = "fixed-1.8V";
--- a/arch/arm/dts/mt7986a-sd-rfb.dts
+++ b/arch/arm/dts/mt7986a-sd-rfb.dts
@@ -19,6 +19,11 @@
 		tick-timer = &timer0;
 	};
 
+	memory@40000000 {
+		device_type = "memory";
+		reg = <0x40000000 0x10000000>;
+	};
+
 	reg_3p3v: regulator-3p3v {
 		compatible = "regulator-fixed";
 		regulator-name = "fixed-3.3V";
--- a/arch/arm/dts/mt7986b-rfb.dts
+++ b/arch/arm/dts/mt7986b-rfb.dts
@@ -18,6 +18,11 @@
 		tick-timer = &timer0;
 	};
 
+	memory@40000000 {
+		device_type = "memory";
+		reg = <0x40000000 0x10000000>;
+	};
+
 	reg_3p3v: regulator-3p3v {
 		compatible = "regulator-fixed";
 		regulator-name = "fixed-3.3V";
--- a/arch/arm/dts/mt7986b-sd-rfb.dts
+++ b/arch/arm/dts/mt7986b-sd-rfb.dts
@@ -19,6 +19,11 @@
 		tick-timer = &timer0;
 	};
 
+	memory@40000000 {
+		device_type = "memory";
+		reg = <0x40000000 0x10000000>;
+	};
+
 	reg_3p3v: regulator-3p3v {
 		compatible = "regulator-fixed";
 		regulator-name = "fixed-3.3V";
--- a/arch/arm/mach-mediatek/mt7622/init.c
+++ b/arch/arm/mach-mediatek/mt7622/init.c
@@ -4,11 +4,14 @@
  * Author: Sam Shih <[email protected]>
  */
 
-#include <common.h>
 #include <fdtdec.h>
 #include <init.h>
 #include <asm/armv8/mmu.h>
-#include <asm/cache.h>
+#include <asm/global_data.h>
+#include <asm/u-boot.h>
+#include <linux/sizes.h>
+
+DECLARE_GLOBAL_DATA_PTR;
 
 int print_cpuinfo(void)
 {
@@ -20,11 +23,13 @@ int dram_init(void)
 {
 	int ret;
 
-	ret = fdtdec_setup_memory_banksize();
+	ret = fdtdec_setup_mem_size_base();
 	if (ret)
 		return ret;
-	return fdtdec_setup_mem_size_base();
 
+	gd->ram_size = get_ram_size((void *)gd->ram_base, SZ_2G);
+
+	return 0;
 }
 
 void reset_cpu(void)
--- a/arch/arm/mach-mediatek/mt7981/init.c
+++ b/arch/arm/mach-mediatek/mt7981/init.c
@@ -4,18 +4,25 @@
  * Author: Sam Shih <[email protected]>
  */
 
-#include <cpu_func.h>
+#include <fdtdec.h>
 #include <init.h>
 #include <asm/armv8/mmu.h>
 #include <asm/system.h>
 #include <asm/global_data.h>
+#include <asm/u-boot.h>
 #include <linux/sizes.h>
 
 DECLARE_GLOBAL_DATA_PTR;
 
 int dram_init(void)
 {
-	gd->ram_size = get_ram_size((void *)CFG_SYS_SDRAM_BASE, SZ_2G);
+	int ret;
+
+	ret = fdtdec_setup_mem_size_base();
+	if (ret)
+		return ret;
+
+	gd->ram_size = get_ram_size((void *)gd->ram_base, SZ_1G);
 
 	return 0;
 }
--- a/arch/arm/mach-mediatek/mt7986/init.c
+++ b/arch/arm/mach-mediatek/mt7986/init.c
@@ -4,18 +4,25 @@
  * Author: Sam Shih <[email protected]>
  */
 
-#include <cpu_func.h>
+#include <fdtdec.h>
 #include <init.h>
 #include <asm/armv8/mmu.h>
 #include <asm/system.h>
 #include <asm/global_data.h>
+#include <asm/u-boot.h>
 #include <linux/sizes.h>
 
 DECLARE_GLOBAL_DATA_PTR;
 
 int dram_init(void)
 {
-	gd->ram_size = get_ram_size((void *)CFG_SYS_SDRAM_BASE, SZ_2G);
+	int ret;
+
+	ret = fdtdec_setup_mem_size_base();
+	if (ret)
+		return ret;
+
+	gd->ram_size = get_ram_size((void *)gd->ram_base, SZ_2G);
 
 	return 0;
 }
--- a/board/mediatek/mt7622/mt7622_rfb.c
+++ b/board/mediatek/mt7622/mt7622_rfb.c
@@ -19,7 +19,6 @@ DECLARE_GLOBAL_DATA_PTR;
 
 int board_init(void)
 {
-	gd->bd->bi_boot_params = CFG_SYS_SDRAM_BASE + 0x100;
 	return 0;
 }
 
--- a/include/configs/mt7622.h
+++ b/include/configs/mt7622.h
@@ -9,14 +9,4 @@
 #ifndef __MT7622_H
 #define __MT7622_H
 
-/* Uboot definition */
-#define CFG_SYS_UBOOT_BASE                   CONFIG_TEXT_BASE
-
-/* SPL -> Uboot */
-#define CFG_SYS_UBOOT_START		CONFIG_TEXT_BASE
-/* DRAM */
-#define CFG_SYS_SDRAM_BASE		0x40000000
-
-/* Ethernet */
-
 #endif
--- a/include/configs/mt7981.h
+++ b/include/configs/mt7981.h
@@ -9,13 +9,4 @@
 #ifndef __MT7981_H
 #define __MT7981_H
 
-/* Uboot definition */
-#define CFG_SYS_UBOOT_BASE		CONFIG_TEXT_BASE
-
-/* SPL -> Uboot */
-#define CFG_SYS_UBOOT_START		CONFIG_TEXT_BASE
-
-/* DRAM */
-#define CFG_SYS_SDRAM_BASE		0x40000000
-
 #endif
--- a/include/configs/mt7986.h
+++ b/include/configs/mt7986.h
@@ -9,13 +9,4 @@
 #ifndef __MT7986_H
 #define __MT7986_H
 
-/* Uboot definition */
-#define CFG_SYS_UBOOT_BASE		CONFIG_TEXT_BASE
-
-/* SPL -> Uboot */
-#define CFG_SYS_UBOOT_START		CONFIG_TEXT_BASE
-
-/* DRAM */
-#define CFG_SYS_SDRAM_BASE		0x40000000
-
 #endif