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| author | Catalin Marinas <catalin.marinas@arm.com> | 2009-07-24 13:33:01 +0200 |
|---|---|---|
| committer | Catalin Marinas <catalin.marinas@arm.com> | 2009-07-24 13:33:01 +0200 |
| commit | e2ed3be7319f2734fcd9c7638888501934c22751 (patch) | |
| tree | d13e3a3e82dace717ad12b8261724f69a06f60dc /arch/arm/boot/Makefile | |
| parent | Thumb-2: Pass a Thumb-2 address to the secondary CPUs to jump to (diff) | |
| download | linux-e2ed3be7319f2734fcd9c7638888501934c22751.tar.xz linux-e2ed3be7319f2734fcd9c7638888501934c22751.zip | |
Thumb-2: Make the uImage entry an odd number
This allows U-Boot to branch to the kernel in Thumb-2 mode via
"mov pc, lr".
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
Diffstat (limited to 'arch/arm/boot/Makefile')
| -rw-r--r-- | arch/arm/boot/Makefile | 9 |
1 files changed, 8 insertions, 1 deletions
diff --git a/arch/arm/boot/Makefile b/arch/arm/boot/Makefile index da226abce2d0..4a590f4113e2 100644 --- a/arch/arm/boot/Makefile +++ b/arch/arm/boot/Makefile @@ -61,7 +61,7 @@ endif quiet_cmd_uimage = UIMAGE $@ cmd_uimage = $(CONFIG_SHELL) $(MKIMAGE) -A arm -O linux -T kernel \ - -C none -a $(LOADADDR) -e $(LOADADDR) \ + -C none -a $(LOADADDR) -e $(STARTADDR) \ -n 'Linux-$(KERNELRELEASE)' -d $< $@ ifeq ($(CONFIG_ZBOOT_ROM),y) @@ -70,6 +70,13 @@ else $(obj)/uImage: LOADADDR=$(ZRELADDR) endif +ifeq ($(CONFIG_THUMB2_KERNEL),y) +# Set bit 0 to 1 so that "mov pc, rx" switches to Thumb-2 mode +$(obj)/uImage: STARTADDR=$(shell echo $(LOADADDR) | sed -e "s/.$$/1/") +else +$(obj)/uImage: STARTADDR=$(LOADADDR) +endif + $(obj)/uImage: $(obj)/zImage FORCE $(call if_changed,uimage) @echo ' Image $@ is ready' |