[U-Boot] [PATCH 1/2] mx51evk: support new relocation scheme

[Shawn Guo]

On Tue, Oct 26, 2010 at 4:14 PM, Stefano Babic <sbabic at denx.de> 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.
>
At this point, IRAM is totally free for u-boot to use, so I simply
reserved 4 KB from start.


-- 
Regards,
Shawn