> > Hi, Hi, > > * Hannes Schmelzer <Hannes.Schmelzer@xxxxxxxxxxxxxxxxx> [150826 22:55]: > > Hi Tony, > > > > Did anyone test this changeset on some AM335x board? > > Apparently not if it does not work or else you somehow have a different > configuration for GPMC. > > > Today I ran into trouble with that because: > > > > The GPMC controller gets reseted on kernel boot due to the missing/removed > > HWMOD_INIT_NO_RESET flag. > > Oh so you mean it only works on am335x if CONFIG_OMAP_GPMC_DEBUG is set? Exactly. > > > I also tried to issue some SYSRESET through GPMC registers without > > success, same strange behavior. > > Interesting, never heard of that one before. Unfortunately i only have my B&R hardware to test, maybe somebody else has an am335x board with NAND flash on it and can test. > > What?s your thinking around that? > > We could add a custom hwmod reset function that sets GPMC_CONFIG to 0. > Similar to omap_i2c_reset() is set up. This would be possible, but we've to take care that such functions isn't called during the new introduced debug-case. > Or we could set up a property for > the wait pin polarity. Roger, got any better ideas? In general, it would be a good idea to introduce a dt-property to control the polarity of the wait pins, since there is allready a property to select the wait pin - this would make the thing complete. > > Regards, > Tony best regards, Hannes -- To unsubscribe from this list: send the line "unsubscribe linux-omap" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
