On Tue, Mar 12, 2019 at 12:37:20PM +0100, Heiko Schocher wrote: > Hello Tom, > > Am 12.03.2019 um 12:16 schrieb Tom Rini: > >On Tue, Mar 12, 2019 at 09:21:36AM +0100, Heiko Schocher wrote: > >>Hello Simon, Tom, > >> > >>I am just stumbeld on an am437x basd board over the problem to pass > >>the bootmode from SPL to U-Boot. On am437x the bootmode info get > >>overwritten from SPL stack, and I need this info in U-Boot. > >> > >>Hack would be to move SPL stack to another address, but we loose > >>than 0xa000 size for stack ... I do not want to go this way.. > > > >I think you need to fix it being over-written as it sounds like we're > >running over our pre-defined scratch space area and that can lead to > >other problems as well, depending on how much your platform is deviating > >from how the TI ref platforms are written. Thanks! > > Yes, doable ... but the question is more, do we really want to read > such infos twice, instead reading them in SPL and passing them from > SPL to U-Boot ?
Probably so, yes. Since we're talking about SPL and a "lots of features, medium sized SRAM" SoC where we've had to carefully tweak configs before to get all desired features within the limits. If you've bled into SRAM_SCRATCH_SPACE_ADDR range you may run into other problems too. -- Tom
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