This adds 32bytes of space behind the image header (exception table + barebox magic) for board/SoC specific use. This can be used for example to embed some extra information in a flashed image. Signed-off-by: Sascha Hauer <s.hauer@xxxxxxxxxxxxxx> --- arch/arm/include/asm/barebox-arm-head.h | 10 ++++++++++ 1 file changed, 10 insertions(+) diff --git a/arch/arm/include/asm/barebox-arm-head.h b/arch/arm/include/asm/barebox-arm-head.h index 9d9b854..225a336 100644 --- a/arch/arm/include/asm/barebox-arm-head.h +++ b/arch/arm/include/asm/barebox-arm-head.h @@ -33,6 +33,13 @@ static inline void arm_cpu_lowlevel_init(void) set_cr(r); } +/* + * 32 bytes at this is offset is reserved in the barebox head for board/SoC + * usage + */ +#define ARM_HEAD_SPARE_OFS 0x30 +#define ARM_HEAD_SPARE_MARKER 0x55555555 + #ifdef CONFIG_HAVE_MACH_ARM_HEAD #include <mach/barebox-arm-head.h> #else @@ -64,6 +71,9 @@ static inline void barebox_arm_head(void) * barebox can skip relocation */ ".word _barebox_image_size\n" /* image size to copy */ + ".rept 8\n" + ".word 0x55555555\n" + ".endr\n" ); } #endif -- 1.8.2.rc2 _______________________________________________ barebox mailing list barebox@xxxxxxxxxxxxxxxxxxx http://lists.infradead.org/mailman/listinfo/barebox
