[U-Boot] [PATCH] arm: socfpga: fix SPL booting from fpga OnChip RAM

Simon Goldschmidt simon.k.r.goldschmidt at gmail.com
Sun Oct 7 11:08:15 UTC 2018


On 06.10.2018 22:38, Tom Rini wrote:
> On Sat, Oct 06, 2018 at 10:33:42PM +0200, Simon Goldschmidt wrote:
>
>> This patch prevents disabling the FPGA bridges when
>> SPL or U-Boot is executed from FPGA onchip RAM.
>>
>> Signed-off-by: Simon Goldschmidt <simon.k.r.goldschmidt at gmail.com>
>> ---
>>
>>
>> There are other patches required to make boot from
>> FPGA work correctly:
>> - CONFIG_SPL_TEXT_BASE needs to be set to 0xC0000000
>>    ideally this is done by moving SPL_TEXT_BASE to Kconfig:
>>    https://patchwork.ozlabs.org/patch/976918/
>> - spl_ram.c needs this patch by Michal Simek:
>>    https://patchwork.ozlabs.org/patch/978694/
>> - For U-Boot to be run from FPGA onchip RAM, either
>>    CONFIG_SYS_EXTRA_ENV_RELOC needs to be used or this patch
>>    is required to relocate gd->env_addr:
>>    https://patchwork.ozlabs.org/patch/975702/
> For the record, I'm currently reviewing the last two parts here.  The
> first one will come soon (I do Kconfig migrations separate so I can see
> a lack of size change).


OK, after Tom merged the last to parts, I can confirm I can successfully 
boot from FPGA by adapting CONFIG_SYS_TEXT_BASE via config and hacking 
CONFIG_SPL_TEXT_BASE to 0xC0000000 (as moving this to Kconfig is still 
missing).


Thanks,

Simon



More information about the U-Boot mailing list