On Tue, Jul 13, 2021 at 2:06 PM Daniel Thompson <daniel.thomp...@linaro.org> wrote: > > On Tue, Jul 13, 2021 at 11:45:14AM +0800, Patrick Star wrote: > > <snip> > > BTW: I don't have Bus Pirate, instead I use a self-made programmer from > > https://github.com/dword1511/stm32-vserprog > > Interesting (and duely noted in case I need it). > > Assuming the dominant caller of the delay functions is via > serprog_delay() then it looks like flashrom would avoid using > internal_delay() entirely if you could add an implementation of > S_CMD_O_DELAY to this firmware. I think the effect of that would be that > STM32 would do the spinning so the host doesn't have to.
Because historical stuff (serprog being designed for the parallel/LPC/FWH flashes carldani talked about, not SPI :) ), you will need to also have the opbuf init and exec commands, but you do not need an actual opbuf (operation buffer), a single delay variable is enough, there is an implementation of that in libfrser: https://github.com/urjaman/libfrser/blob/master/frser.c#L401 And this is why I'd prefer serprog implementations to be actually atleast based on libfrser ;) -- Urja Rannikko _______________________________________________ flashrom mailing list -- flashrom@flashrom.org To unsubscribe send an email to flashrom-le...@flashrom.org
