Hi Tony,
On Tue, Apr 22, 2014 at 2:54 AM, Tony Lindgren <tony@xxxxxxxxxxx> wrote:
> Hi all,
>
> Here are two fixes to GPMC issues I've seen. It seems that we have
> few more issues left to solve:
>
> 1. The remap of a device with gpmc_cs_remap seems to fail for
> a device if it's address specified in the .dts file is
> different from the address used by the bootloader
>
> 2. There seems to be some timing issues with smc911x where
> rsync of larger files and apt-get dist-upgrade can produce
> strange errors. This seems to work reliably when booted in
> legacy mode.
>
In what board are you having this issue? The smsc911x driver supports
both SMSC's LAN911x and LAN921x families and I see that we have two
.dtsi files with different timings
(arm/boot/dts/omap-gpmc-smsc{911x,9221}.dtsi).
This is only a wild guess, but maybe your board has a smsc LAN921x
chip but is including omap-gpmc-smsc911x.dtsi on its DTS?
> 3. The DT mappings of GPMC devices are wrong for most devices
> where the ranges property should contain the GPMC partition
> size (16, 32, 128 or 256 MB), and the reg property for the
> device should only contain the device IO range. So only NOR
> should use large values for ranges and IO range, the rest
> should use the minimum 16 MB range for GPMC partition, and
> 0x4 - 0x20000 for the IO range. And while patching these
> it makes sense to also unify the GPMC ranges being used for
> devices.
>
> Pekon, can you take a look at 1 and 2 above?
>
> Then for 3 above, it seems that we cannot safely change
> ranges before 1 and 2 are working reliably. Or else we have
> patch things twice, once to fix the range sizes, then to
> unify the mappings for the range address...
>
> Regards,
>
> Tony
>
> Tony Lindgren (2):
> ARM: OMAP2+: Fix oops for GPMC free
> ARM: OMAP2+: Fix GPMC remap for devices using an offset
>
These fixes look good to me.
Reviewed-by: Javier Martinez Canillas <javier@xxxxxxxxxxxx>
> arch/arm/mach-omap2/gpmc.c | 15 +++++++++++++--
> 1 file changed, 13 insertions(+), 2 deletions(-)
>
> --
> 1.8.1.1
>
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