[U-Boot] [PATCH v3 4/8] imx6: add some flexibility for defining macros
Stefano Babic
sbabic at denx.de
Tue Nov 11 09:28:06 CET 2014
Hi John,
On 10/11/2014 00:53, John Tobias wrote:
>>> @@ -29,7 +29,9 @@
>>> #define CONFIG_SPL_TEXT_BASE 0x00908000
>>> #define CONFIG_SPL_MAX_SIZE 0x10000
>>> #define CONFIG_SPL_START_S_PATH "arch/arm/cpu/armv7"
>>> +#ifndef CONFIG_SPL_STACK
>>> #define CONFIG_SPL_STACK 0x0091FFB8
>>> +#endif
>>
>> Why is this required ?
>
> Other iMX6 chip has different STACK address and the current defined
> address does not
> compatibile for the iMX6 SabreSD.
This is exactly what I have not understood. Why is this board so special
to require a different value ? SPL will run into the IRAM, whose size
and layout is the same for i.MX6Q. Is there a reserved area in the IRAM
only for sabreSD and if yes, for which reason ?
Best regards,
Stefano Babic
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