7 Oct
2018
7 Oct
'18
1:08 p.m.
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@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