Hi,
On Tue, Jan 05, 2016 at 02:49:29PM -0800, Tony Lindgren wrote:
> Commit 63aa945b1013 ("memory: omap-gpmc: Add Kconfig option for debug")
> unified the GPMC debug for the SoCs with GPMC. The commit also left
> out the option for HWMOD_INIT_NO_RESET as we now require proper timings
> for GPMC to be able to remap GPMC devices out of address 0.
>
> Unfortunately on 900, onenand now only partially works with the deviceYou may want to change 900 to n900 (maybe even Nokia N900) before actually committing this. > tree provided timings. It works enough to get detected but the clock > rate supported by the onenand chip gets misdetected. This in turn causes > the GPMC timings to be miscalculated and this leads into file system > corruption on n900. > > Looks like onenand needs CS_CONFIG1 bit 27 WRITETYPE set for for sync > write. This is needed also for async timings when we write to onenand > with omap2_onenand_set_async_mode(). Without sync write bit set, the > async read for the onenand ONENAND_REG_VERSION_ID will return 0xfff. > > Let's exit with an error if onenand rate is not detected. And let's > remove the extra call to omap2_onenand_set_async_mode() as we only > need to do this once at the end of omap2_onenand_setup_async(). > > Reported-by: Ivaylo Dimitrov <ivo.g.dimitrov...@gmail.com> > Signed-off-by: Tony Lindgren <t...@atomide.com> -- Sebastian
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