[U-Boot] [PATCH v2 18/22] armv7: embed u-boot size within u-boot for use from SPL

Aneesh V
2011-05-18T04:49:58Z

Hi Scott,

On Tuesday 17 May 2011 12:26 AM, Scott Wood wrote:
> On Sun, 15 May 2011 20:51:36 +0530
> Aneesh V<aneesh@ti.com> wrote:
>
>> Embed the u-boot flash image size at a known offset from the
>> start of u-boot so that SPL can use it while loading u-boot
>> from a non-XIP media.
>>
>> Signed-off-by: Aneesh V<aneesh@ti.com>
>> V2:
>> * Removed the linker script label '__flash_image_end' and its usage.
>> Instead '_end' is used now
>> ---
>> arch/arm/cpu/armv7/start.S | 6 +++++-
>> 1 files changed, 5 insertions(+), 1 deletions(-)
>>
>> diff --git a/arch/arm/cpu/armv7/start.S b/arch/arm/cpu/armv7/start.S
>> index f92c6d9..f676d7d 100644
>> --- a/arch/arm/cpu/armv7/start.S
>> +++ b/arch/arm/cpu/armv7/start.S
>> @@ -64,8 +64,12 @@ _pad: .word 0x12345678 /* now 16*4=64 */
>>
>> .global _end_vect
>> _end_vect:
>> +.global _u_boot_size
>> +_u_boot_size:
>> + .word 0xDEADBEEF
>> + .word _end - _start
>
> 0xdeadbeef does not seem like a good magic value to identify this header
> format -- especially since it looks like that may have been the value
> present in the older images that don't have this header (depending on
> whether the .balignl needed to pad).

Thanks for pointing this out. I will change it to something different.

best regards,
Aneesh