On 5/3/19 10:39 PM, Simon Goldschmidt wrote:
On 03.05.19 22:35, Marek Vasut wrote:
On 5/3/19 10:30 PM, Simon Goldschmidt wrote:
On 03.05.19 22:28, Marek Vasut wrote:
On 5/3/19 10:08 PM, Simon Goldschmidt wrote:
This moves the code that enables the Boot ROM to just jump to SRAM instead of loading SPL from the original boot source on warm reboot.
Instead of always enabling this, an environment callback for the env var "socfpga_reboot_from_sram" is used. This way, the behaviour can be enabled at runtime and via saved environment.
Signed-off-by: Simon Goldschmidt simon.k.r.goldschmidt@gmail.com
Would that be like a default "reset" command action ? This probably shouldn't be socfpga specific then.
No, it's a thing that lives on and influences even the soft reset issued by linux "reboot" command. This is something *very* socfpga specific.
Hmmm, so isn't this a policy to be configured on the Linux end ?
Might be, but it affects U-Boot's 'reset' command as well. And I guess it's set up in U-Boot this early to ensure it always works.
Drat, that's right. So there has to be some way to agree on how the reset works between the kernel and U-Boot ?
If it were for me, we could drop writing this magic altogether. I just figured some boards might require it to be written somewhere, and came up with a patch that might save those boards with the way it was before.
Isn't this magic actually used by bootrom ?