ramips: use upstream RAW_APPENDED_DTB instead of our OWRTDTB

Upstream kernel added support for RAW_APPENDED_DTB on ralink arch
in the following commit:
02564fc89d3d ("ralink: Introduce fw_passed_dtb to arch/mips/ralink")

Use upstream solution and get rid of our OWRTDTB hack.
This commit set DEVICE_DTS to $$(DTS) instead of replacing DTS with
DEVICE_DTS in device profile because DTS variable will be dropped
in later commits.

Signed-off-by: Chuanhong Guo <[email protected]>
[Tested on mt7621/mt76x8]
Tested-by: Chuanhong Guo <[email protected]>
[Tested on rt305x/mt7620]
Tested-by: INAGAKI Hiroshi <[email protected]>

target/linux/ramips/image/Makefile

@@ -19,12 +19,12 @@ loadaddr-$(CONFIG_TARGET_ramips_mt7621) := 0x80001000
 
 KERNEL_LOADADDR := $(loadaddr-y)
 
-KERNEL_DTB = kernel-bin | patch-dtb | lzma
+KERNEL_DTB = kernel-bin | append-dtb | lzma
 define Device/Default
-  PROFILES = Default $$(DTS)
-  KERNEL_DEPENDS = $$(wildcard ../dts/$$(DTS).dts)
+  PROFILES = Default
   KERNEL := $(KERNEL_DTB) | uImage lzma
   DEVICE_DTS_DIR := ../dts
+  DEVICE_DTS = $$(DTS)
   IMAGES := sysupgrade.bin
   IMAGE_SIZE := $(ralink_default_fw_size_8M)
   SUPPORTED_DEVICES := $(subst _,$(comma),$(1))
@@ -52,11 +52,6 @@ define Build/jcg-header
 	mv [email protected] $@
 endef
 
-define Build/patch-dtb
-	$(call Image/BuildDTB,../dts/$(DTS).dts,[email protected])
-	$(STAGING_DIR_HOST)/bin/patch-dtb $@ [email protected]
-endef
-
 define Build/trx
 	$(STAGING_DIR_HOST)/bin/trx $(1) \
 		-o $@ \

target/linux/ramips/image/mt7621.mk

@@ -98,7 +98,7 @@ define Device/dir-860l-b1
   DTS := DIR-860L-B1
   BLOCKSIZE := 64k
   SEAMA_SIGNATURE := wrgac13_dlink.2013gui_dir860lb
-  KERNEL := kernel-bin | patch-dtb | relocate-kernel | lzma | uImage lzma
+  KERNEL := kernel-bin | append-dtb | relocate-kernel | lzma | uImage lzma
   IMAGE_SIZE := $(ralink_default_fw_size_16M)
   DEVICE_VENDOR := D-Link
   DEVICE_MODEL := DIR-860L

target/linux/ramips/image/rt3883.mk

@@ -52,7 +52,7 @@ define Device/belkin_f9k1109v1
   DEVICE_VARIANT := Version 1.0
   DEVICE_PACKAGES := kmod-usb-core kmod-usb-ohci kmod-usb2 swconfig
   IMAGE_SIZE := 7224k
-  KERNEL := kernel-bin | patch-dtb | lzma -d16 | uImage lzma
+  KERNEL := kernel-bin | append-dtb | lzma -d16 | uImage lzma
   # Stock firmware checks for this uImage image name during upload.
   UIMAGE_NAME := N750F9K1103VB
 endef

target/linux/ramips/mt7620/config-4.14

@@ -146,8 +146,8 @@ CONFIG_MIPS_CMDLINE_FROM_DTB=y
 # CONFIG_MIPS_HUGE_TLB_SUPPORT is not set
 CONFIG_MIPS_L1_CACHE_SHIFT=5
 # CONFIG_MIPS_MACHINE is not set
-CONFIG_MIPS_NO_APPENDED_DTB=y
-# CONFIG_MIPS_RAW_APPENDED_DTB is not set
+# CONFIG_MIPS_NO_APPENDED_DTB is not set
+CONFIG_MIPS_RAW_APPENDED_DTB=y
 CONFIG_MIPS_SPRAM=y
 CONFIG_MODULES_USE_ELF_REL=y
 # CONFIG_MT7621_WDT is not set

target/linux/ramips/mt7621/config-4.14

@@ -173,9 +173,9 @@ CONFIG_MIPS_L1_CACHE_SHIFT=5
 CONFIG_MIPS_MT=y
 CONFIG_MIPS_MT_FPAFF=y
 CONFIG_MIPS_MT_SMP=y
-CONFIG_MIPS_NO_APPENDED_DTB=y
+# CONFIG_MIPS_NO_APPENDED_DTB is not set
 CONFIG_MIPS_PERF_SHARED_TC_COUNTERS=y
-# CONFIG_MIPS_RAW_APPENDED_DTB is not set
+CONFIG_MIPS_RAW_APPENDED_DTB=y
 CONFIG_MIPS_SPRAM=y
 # CONFIG_MIPS_VPE_LOADER is not set
 CONFIG_MODULES_USE_ELF_REL=y

target/linux/ramips/mt76x8/config-4.14

@@ -143,8 +143,8 @@ CONFIG_MIPS_CMDLINE_FROM_DTB=y
 # CONFIG_MIPS_HUGE_TLB_SUPPORT is not set
 CONFIG_MIPS_L1_CACHE_SHIFT=5
 # CONFIG_MIPS_MACHINE is not set
-CONFIG_MIPS_NO_APPENDED_DTB=y
-# CONFIG_MIPS_RAW_APPENDED_DTB is not set
+# CONFIG_MIPS_NO_APPENDED_DTB is not set
+CONFIG_MIPS_RAW_APPENDED_DTB=y
 CONFIG_MIPS_SPRAM=y
 CONFIG_MODULES_USE_ELF_REL=y
 CONFIG_MT7621_WDT=y

target/linux/ramips/patches-4.14/0100-prom_fixes.patch

@@ -1,66 +0,0 @@
-From 67b7bff0fd364c194e653f69baa623ba2141bd4c Mon Sep 17 00:00:00 2001
-From: John Crispin <[email protected]>
-Date: Mon, 4 Aug 2014 18:46:02 +0200
-Subject: [PATCH 07/53] MIPS: ralink: copy the commandline from the devicetree
-
-Signed-off-by: John Crispin <[email protected]>
----
- arch/mips/ralink/of.c |    2 ++
- 1 file changed, 2 insertions(+)
-
---- a/arch/mips/ralink/of.c
-+++ b/arch/mips/ralink/of.c
-@@ -3,7 +3,7 @@
-  * under the terms of the GNU General Public License version 2 as published
-  * by the Free Software Foundation.
-  *
-- * Copyright (C) 2008 Imre Kaloz <[email protected]>
-+ * Copyright (C) 2008-2014 Imre Kaloz <[email protected]>
-  * Copyright (C) 2008-2009 Gabor Juhos <[email protected]>
-  * Copyright (C) 2013 John Crispin <[email protected]>
-  */
-@@ -66,6 +66,19 @@ static int __init early_init_dt_find_mem
- 	return 0;
- }
- 
-+static int chosen_dtb;
-+
-+static int __init early_init_dt_find_chosen(unsigned long node, const char *uname,
-+				     int depth, void *data)
-+{
-+	if (depth == 1 && !strcmp(uname, "chosen"))
-+		chosen_dtb = 1;
-+
-+	return 0;
-+}
-+
-+extern struct boot_param_header __image_dtb;
-+
- void __init plat_mem_setup(void)
- {
- 	void *dtb = NULL;
-@@ -82,7 +95,11 @@ void __init plat_mem_setup(void)
- 	else if (__dtb_start != __dtb_end)
- 		dtb = (void *)__dtb_start;
- 
--	__dt_setup_arch(dtb);
-+	__dt_setup_arch(&__image_dtb);
-+
-+	of_scan_flat_dt(early_init_dt_find_chosen, NULL);
-+	if (chosen_dtb)
-+		strlcpy(arcs_cmdline, boot_command_line, COMMAND_LINE_SIZE);
- 
- 	strlcpy(arcs_cmdline, boot_command_line, COMMAND_LINE_SIZE);
- 
---- a/arch/mips/kernel/head.S
-+++ b/arch/mips/kernel/head.S
-@@ -85,6 +85,9 @@ EXPORT(__image_cmdline)
- 	.fill	0x400
- #endif /* CONFIG_IMAGE_CMDLINE_HACK */
- 
-+	.ascii  "OWRTDTB:"
-+	EXPORT(__image_dtb)
-+	.fill   0x4000
- 	__REF
- 
- NESTED(kernel_entry, 16, sp)			# kernel entry point

target/linux/ramips/rt305x/config-4.14

@@ -124,8 +124,8 @@ CONFIG_MIPS_CMDLINE_FROM_DTB=y
 # CONFIG_MIPS_HUGE_TLB_SUPPORT is not set
 CONFIG_MIPS_L1_CACHE_SHIFT=5
 # CONFIG_MIPS_MACHINE is not set
-CONFIG_MIPS_NO_APPENDED_DTB=y
-# CONFIG_MIPS_RAW_APPENDED_DTB is not set
+# CONFIG_MIPS_NO_APPENDED_DTB is not set
+CONFIG_MIPS_RAW_APPENDED_DTB=y
 CONFIG_MIPS_SPRAM=y
 CONFIG_MODULES_USE_ELF_REL=y
 # CONFIG_MTD_CFI_INTELEXT is not set

target/linux/ramips/rt3883/config-4.14

@@ -138,8 +138,8 @@ CONFIG_MIPS_CMDLINE_FROM_DTB=y
 # CONFIG_MIPS_HUGE_TLB_SUPPORT is not set
 CONFIG_MIPS_L1_CACHE_SHIFT=5
 # CONFIG_MIPS_MACHINE is not set
-CONFIG_MIPS_NO_APPENDED_DTB=y
-# CONFIG_MIPS_RAW_APPENDED_DTB is not set
+# CONFIG_MIPS_NO_APPENDED_DTB is not set
+CONFIG_MIPS_RAW_APPENDED_DTB=y
 CONFIG_MIPS_SPRAM=y
 CONFIG_MODULES_USE_ELF_REL=y
 # CONFIG_MTD_CFI_INTELEXT is not set