pistachio: add and enable support for FIT image boot

Add support for booting fitImage for dualnandboot, it will be verified boot with signature taken from u-boot.dtb file. dualnandboot will boot fitImage if file is present else uImage, this is for supporting builds which still don't have fitImage. Added bootm_verify flag to enable/disable checking of hashes and signature. Bug-Id: KIN-1981 Change-Id: I80aad43649b921bd9f2ce8699bd2e3e9a0d99cb4 Signed-off-by: Shraddha Chaudhari <[email protected]>
CreatorDev · Sep 15, 2016 · 89ffc51 · 89ffc51
1 parent f55662b
commit 89ffc51
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Showing 7 changed files with 78 additions and 9 deletions.
diff --git a/arch/mips/dts/Makefile b/arch/mips/dts/Makefile
@@ -3,7 +3,10 @@ dtb-$(CONFIG_MACH_PISTACHIO) += pistachio_bub.dtb pistachio_marduk.dtb pistachio
 targets += $(dtb-y)
 
 # Add any required device tree compiler flags here
-DTC_FLAGS +=
+ifdef CONFIG_FIT
+# -p for adding padding bytes in the end, this is required by mkimage to add rsa keys
+DTC_FLAGS += -p 0x1000
+endif
 
 PHONY += dtbs
 dtbs: $(addprefix $(obj)/, $(dtb-y))

diff --git a/arch/mips/dts/pistachio_beetle_mbub.dts b/arch/mips/dts/pistachio_beetle_mbub.dts
@@ -10,6 +10,7 @@
 /dts-v1/;
 
 #include "pistachio_beetle.dtsi"
+#include "pistachio_signature.dtsi"
 #include <dt-bindings/sound/pistachio-bub-audio.h>
 
 / {

diff --git a/arch/mips/dts/pistachio_bub.dts b/arch/mips/dts/pistachio_bub.dts
@@ -10,6 +10,7 @@
 /dts-v1/;
 
 #include "pistachio.dtsi"
+#include "pistachio_signature.dtsi"
 
 / {
 	model = "IMG Pistachio BuB";

diff --git a/arch/mips/dts/pistachio_concerto_mbub.dts b/arch/mips/dts/pistachio_concerto_mbub.dts
@@ -10,6 +10,7 @@
 /dts-v1/;
 
 #include "pistachio.dtsi"
+#include "pistachio_signature.dtsi"
 #include <dt-bindings/sound/pistachio-bub-audio.h>
 
 / {

diff --git a/arch/mips/dts/pistachio_marduk.dts b/arch/mips/dts/pistachio_marduk.dts
@@ -9,7 +9,7 @@
 /dts-v1/;
 
 #include "pistachio.dtsi"
-
+#include "pistachio_signature.dtsi"
 / {
 	model = "IMG Marduk";
 	compatible = "img,pistachio-marduk", "img,pistachio";

diff --git a/arch/mips/dts/pistachio_signature.dtsi b/arch/mips/dts/pistachio_signature.dtsi
@@ -0,0 +1,18 @@
+/*
+ * Copyright (C) 2015 Imagination Technologies Ltd.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+
+
+/ {
+	signature {
+		key-dev {
+			required = "conf";
+			algo = "sha1,rsa2048";
+			key-name-hint = "dev";
+		};
+	};
+};
diff --git a/include/configs/pistachio_bub.h b/include/configs/pistachio_bub.h
@@ -32,6 +32,25 @@
 
 #define CONFIG_PHYS_TO_BUS
 
+/*
+ *FIT Image
+*/
+#define CONFIG_FIT
+#ifdef CONFIG_FIT
+#define CONFIG_FIT_BEST_MATCH
+#define CONFIG_FIT_SIGNATURE
+#define CONFIG_FIT_VERBOSE
+#define CONFIG_RSA
+#define CONFIG_RSA_SOFTWARE_EXP
+#define CONFIG_IMAGE_FORMAT_LEGACY
+#define FITBOOT_VARIABLES	\
+	"fitfile=fitImage\0"	\
+	"fitconf="PISTACHIO_BOARD_NAME"_config@1\0"	\
+	"bootm_verify=y\0"
+#else
+#define FITBOOT_VARIABLES ""
+#endif
+
 /*
  * Memory map
  */
@@ -278,18 +297,43 @@
 	"ubifsload $fdtaddr $bootdir$fdtfile;"					\
 	"bootm $loadaddr - $fdtaddr;"
 
-#define DUAL_NAND_BOOTCOMMAND							\
+#define DUAL_NAND_BOOT_INIT							\
 	"sf probe 1:0;"								\
 	"mtdparts default;"							\
 	"setenv nandroot ubi.mtd=firmware${boot_partition} root=ubi0:rootfs rootfstype=ubifs;"	\
 	"setenv bootargs $console $earlycon $nandroot $bootextra $mtdparts panic=2;"	\
-	"setenv verify n;"							\
-	"ubi part firmware${boot_partition};"						\
-	"setenv ubifs_bootm_cmd \"ubifsmount ubi:rootfs && "				\
-	"ubifsload $loadaddr $bootdir$bootfile && "					\
-	"ubifsload $fdtaddr $bootdir$fdtfile && " 					\
-	"bootm $loadaddr - $fdtaddr\";"								\
+	"setenv verify $bootm_verify;"						\
+	"ubi part firmware${boot_partition};"					\
+	"ubifsmount ubi:rootfs || reset;"
+
+#define DUAL_NAND_UIMAGE_BOOT							\
+	"setenv ubifs_bootm_cmd \"ubifsload $loadaddr $bootdir$bootfile && "	\
+	"ubifsload $fdtaddr $bootdir$fdtfile && "				\
+	"bootm $loadaddr - $fdtaddr\";"
+
+#define DUAL_NAND_FITIMAGE_BOOT							\
+	"setenv ubifs_bootm_cmd \"ubifsload $loadaddr $bootdir$fitfile && "	\
+	"bootm $loadaddr#$fitconf\";"
+
+
+#ifdef CONFIG_FIT
+/*
+ If fitImage file is found boot that,  else try uImage
+*/
+#define DUAL_NAND_BOOTCOMMAND							\
+	DUAL_NAND_BOOT_INIT							\
+	"if ubifsls $bootdir$fitfile; then "					\
+		DUAL_NAND_FITIMAGE_BOOT						\
+	"else "									\
+		DUAL_NAND_UIMAGE_BOOT						\
+	"fi;"									\
 	"run ubifs_bootm_cmd || reset;"
+#else
+#define DUAL_NAND_BOOTCOMMAND							\
+	DUAL_NAND_BOOT_INIT							\
+	DUAL_NAND_UIMAGE_BOOT							\
+	"run ubifs_bootm_cmd || reset;"
+#endif
 
 #ifdef CONFIG_BOOTCOUNT_LIMIT
 
@@ -348,6 +392,7 @@
 	"fdtaddr=0x0D000000\0"						\
 	"fdtfile="PISTACHIO_BOARD_NAME".dtb\0"				\
 	"bootfile=uImage\0"						\
+	FITBOOT_VARIABLES						\
 	"loadaddr=0x0E000000\0"						\
 	"bootdir=/\0"							\
 	"usbdev=0\0"							\