On Wed, May 17, 2017 at 01:55:56PM +0200, Jean-Jacques Hiblot wrote:
> SDIO is not supported in u-boot, there is no point in enabling mmc3.
>
> Signed-off-by: Jean-Jacques Hiblot <jjhib...@ti.com>
> ---
>
> Tom,
>
> this will fix the problem youreported with commit
> b5511d6cb8dc601efc14b8cf60755
> on am335x-evm. For the record, the problem is that the clock of mmc 3 is not
> enbled by the arch code. With DM_MMC enabled, mmc3 gets probed and u-boot
> crashes
> when mmc3's registers are accessed for the first time.
>
> Jean-Jacques
>
>
> arch/arm/dts/am335x-evm.dts | 4 +++-
> 1 file changed, 3 insertions(+), 1 deletion(-)
>
> diff --git a/arch/arm/dts/am335x-evm.dts b/arch/arm/dts/am335x-evm.dts
> index a6f20af..e94fcad 100644
> --- a/arch/arm/dts/am335x-evm.dts
> +++ b/arch/arm/dts/am335x-evm.dts
> @@ -721,12 +721,14 @@
> };
>
> &mmc3 {
> + /* disable MMC3 as SDIO is not supported in U-Boot */
> + status = "disabled";
> +
> /* these are on the crossbar and are outlined in the
> xbar-event-map element */
> dmas = <&edma 12
> &edma 13>;
> dma-names = "tx", "rx";
> - status = "okay";
> vmmc-supply = <&wlan_en_reg>;
> bus-width = <4>;
> pinctrl-names = "default";Please put this into arch/arm/dts/am335x-evm-u-boot.dtsi instead, thanks! -- Tom
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