[U-Boot] [PATCH 1/2] mx51evk: support new relocation scheme
Heiko Schocher
hs at denx.de
Tue Oct 26 10:25:22 CEST 2010
Hello Stefano,
Stefano Babic wrote:
> On 10/26/2010 10:05 AM, Shawn Guo wrote:
>> Hi Stefano,
>>
>> On Tue, Oct 26, 2010 at 3:59 PM, Stefano Babic <sbabic at denx.de> wrote:
>>> On 10/25/2010 05:14 PM, Shawn Guo wrote:
>>>
>>>> +#define CONFIG_SYS_SDRAM_BASE PHYS_SDRAM_1
>>>> +#define CONFIG_SYS_INIT_SP_ADDR (IRAM_BASE_ADDR + 0x1000)
>>> What is the meaning of the offset at 0x1000 ? Is there something at
>>> IRAM_BASE_ADDR ?
>>>
>> I thought CONFIG_SYS_INIT_SP_ADDR is assigned to stack pointer (sp)
>> which decrease the address. Is it not the case?
>>
>
> Yes, my doubt is due to the fact that we do not set the SP at the end of
> the IRAM and we set it to an arbitrary address in between.
We should set the CONFIG_SYS_INIT_SP_ADDR @ (IRAM_BASE_ADDR + IRAM_BASE_SIZE
- CONFIG_SYS_GBL_DATA_SIZE)
Don;t know if IRAM_BASE_SIZE exists ...
bye,
Heiko
--
DENX Software Engineering GmbH, MD: Wolfgang Denk & Detlev Zundel
HRB 165235 Munich, Office: Kirchenstr.5, D-82194 Groebenzell, Germany
More information about the U-Boot
mailing list