From 31f9aec7d61f24f50f2ce37a47558afbad410317 Mon Sep 17 00:00:00 2001
From: John Crispin <john@openwrt.org>
Date: Sat, 21 Nov 2015 21:25:04 +0000
Subject: [PATCH] brcm2708: add support for multi-device images
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

Signed-off-by: Álvaro Fernández Rojas <noltari@gmail.com>

SVN-Revision: 47561
---
 .../brcm2708/bcm2708/profiles/RaspberryPi.mk  | 34 +++----------------
 target/linux/brcm2708/image/Makefile          | 24 ++++++-------
 target/linux/brcm2708/image/config.txt        |  2 +-
 3 files changed, 16 insertions(+), 44 deletions(-)

diff --git a/target/linux/brcm2708/bcm2708/profiles/RaspberryPi.mk b/target/linux/brcm2708/bcm2708/profiles/RaspberryPi.mk
index dcf6e0599b..9f698a711d 100644
--- a/target/linux/brcm2708/bcm2708/profiles/RaspberryPi.mk
+++ b/target/linux/brcm2708/bcm2708/profiles/RaspberryPi.mk
@@ -5,34 +5,10 @@
 # See /LICENSE for more information.
 #
 
-define Profile/Default
-  NAME:=Raspberry Pi
+define Profile/RaspberryPi
+  NAME:=Raspberry Pi Models B/B+/CM
 endef
-define Profile/Default/Description
-  Raspberry Pi
+define Profile/RaspberryPi/Description
+  Raspberry Pi Models B/B+/CM
 endef
-$(eval $(call Profile,Default))
-
-define Profile/RaspberryPi_B
-  NAME:=Raspberry Pi Model B
-endef
-define Profile/RaspberryPi_B/Description
-  Raspberry Pi Model B
-endef
-$(eval $(call Profile,RaspberryPi_B))
-
-define Profile/RaspberryPi_BPlus
-  NAME:=Raspberry Pi Model B+
-endef
-define Profile/RaspberryPi_BPlus/Description
-  Raspberry Pi Model B+
-endef
-$(eval $(call Profile,RaspberryPi_BPlus))
-
-define Profile/RaspberryPi_CM
-  NAME:=Raspberry Pi Compute Module
-endef
-define Profile/RaspberryPi_CM/Description
-  Raspberry Pi Model Compute Module
-endef
-$(eval $(call Profile,RaspberryPi_CM))
+$(eval $(call Profile,RaspberryPi))
diff --git a/target/linux/brcm2708/image/Makefile b/target/linux/brcm2708/image/Makefile
index 22c1218fc7..53e5f54230 100644
--- a/target/linux/brcm2708/image/Makefile
+++ b/target/linux/brcm2708/image/Makefile
@@ -12,9 +12,9 @@ FAT32_BLOCK_SIZE=1024
 FAT32_BLOCKS=$(shell echo $$(($(CONFIG_BRCM2708_SD_BOOT_PARTSIZE)*1024*1024/$(FAT32_BLOCK_SIZE))))
 
 ### Image scripts ###
-define Build/gen-cfg
-	cat config.txt > $@.config
-	echo -e "\ndevice_tree=$(DEVICE_DTS).dtb" >> $@.config
+define Build/kernel-img
+	perl $(LINUX_DIR)/scripts/mkknlimg $@ $@.tmp
+	mv $@.tmp $@
 endef
 
 define Build/boot-img
@@ -28,9 +28,9 @@ define Build/boot-img
 	mcopy -i $@.boot $(KDIR)/fixup.dat ::
 	mcopy -i $@.boot $(KDIR)/fixup_cd.dat ::
 	mcopy -i $@.boot cmdline.txt ::
-	mcopy -i $@.boot $@.config ::config.txt
+	mcopy -i $@.boot config.txt ::
 	mcopy -i $@.boot $(word 1,$^) ::kernel.img
-	mcopy -i $@.boot $(DTS_DIR)/$(DEVICE_DTS).dtb ::$(DEVICE_DTS).dtb
+	$(foreach dts,$(shell echo $(DEVICE_DTS)),mcopy -i $@.boot $(DTS_DIR)/$(dts).dtb ::)
 	mmd -i $@.boot ::/overlays
 	mcopy -i $@.boot $(DTS_DIR)/overlays/*.dtb ::/overlays/
 	mcopy -i $@.boot $(DTS_DIR)/overlays/README ::/overlays/
@@ -46,9 +46,9 @@ endef
 define Device/Default
   FILESYSTEMS := ext4
   PROFILES = Default $$(DEVICE_PROFILE)
-  KERNEL := kernel-bin
+  KERNEL := kernel-bin | kernel-img
   IMAGES := sdcard.img
-  IMAGE/sdcard.img := gen-cfg | boot-img | sdcard-img
+  IMAGE/sdcard.img := boot-img | sdcard-img
   DEVICE_PROFILE :=
   DEVICE_DTS :=
 endef
@@ -67,18 +67,14 @@ endef
 
 ### BCM2708/BCM2835 ###
 ifeq ($(SUBTARGET),bcm2708)
-  # Raspberry Pi Model B
-  $(eval $(call bcm270x,RaspberryPi_B,rpi-b,bcm2708-rpi-b))
-  # Raspberry Pi Model B+
-  $(eval $(call bcm270x,RaspberryPi_BPlus,rpi-b-plus,bcm2708-rpi-b-plus))
-  # Raspberry Pi Compute Module
-  $(eval $(call bcm270x,RaspberryPi_CM,rpi-cm,bcm2708-rpi-cm))
+  # Raspberry Pi Models B/B+/CM
+  $(eval $(call bcm270x,RaspberryPi,rpi,bcm2708-rpi-b bcm2708-rpi-b-plus bcm2708-rpi-cm))
 endif
 
 ### BCM2709/BCM2836 ###
 ifeq ($(SUBTARGET),bcm2709)
   # Raspberry Pi 2 Model B
-  $(eval $(call bcm270x,RaspberryPi_2,rpi-2-b,bcm2709-rpi-2-b))
+  $(eval $(call bcm270x,RaspberryPi_2,rpi-2,bcm2709-rpi-2-b))
 endif
 
 $(eval $(call BuildImage))
diff --git a/target/linux/brcm2708/image/config.txt b/target/linux/brcm2708/image/config.txt
index 1fb880f9be..75b1cab7af 100644
--- a/target/linux/brcm2708/image/config.txt
+++ b/target/linux/brcm2708/image/config.txt
@@ -476,7 +476,7 @@
 ##     Stop start.elf from filling in ATAGS (memory from 0x100) before
 ##     launching kernel
 ##
-disable_commandline_tags=1
+disable_commandline_tags=2
 
 ## cmdline (string)
 ##     Command line parameters. Can be used instead of cmdline.txt file