[PATCH] ARM: at91: fix at91sam9263ek DT mmc pinmuxing settings
Boris BREZILLON
boris.brezillon at free-electrons.com
Tue Sep 23 04:47:54 PDT 2014
Hi Andreas,
On Tue, 23 Sep 2014 13:42:44 +0200
Andreas Henriksson <andreas.henriksson at endian.se> wrote:
> As discovered on a custom board similar to at91sam9263ek and basing
> its devicetree on that one apparently the pin muxing doesn't get
> set up properly. This was discovered since the custom boards u-boot
> does funky stuff with the pin muxing and leaved it set to SPI
> which made the MMC driver not work under Linux.
> The fix is simply to define the given configuration as the default.
> This probably worked by pure luck before, but it's better to
> make the muxing explicitly set.
>
> CC: Boris BREZILLON <boris.brezillon at free-electrons.com>
> Signed-off-by: Andreas Henriksson <andreas.henriksson at endian.se>
Acked-by: Boris Brezillon <boris.brezillon at free-electrons.com>
Thanks,
Boris
> ---
> arch/arm/boot/dts/at91sam9263ek.dts | 1 +
> 1 file changed, 1 insertion(+)
>
> diff --git a/arch/arm/boot/dts/at91sam9263ek.dts b/arch/arm/boot/dts/at91sam9263ek.dts
> index 5cf93ee..33a4f9a 100644
> --- a/arch/arm/boot/dts/at91sam9263ek.dts
> +++ b/arch/arm/boot/dts/at91sam9263ek.dts
> @@ -64,6 +64,7 @@
> };
>
> mmc0: mmc at fff80000 {
> + pinctrl-names = "default";
> pinctrl-0 = <
> &pinctrl_board_mmc0
> &pinctrl_mmc0_clk
--
Boris Brezillon, Free Electrons
Embedded Linux and Kernel engineering
http://free-electrons.com
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