Re: [PATCH 2/4] am335x-boneblack: add eMMC DT entry

From: Nishanth Menon
Date: Thu Sep 12 2013 - 12:19:12 EST


Nitpick minor comment:
$subject:
ARM: dts: am335x-boneblack: add eMMC DT entry

On 09/12/2013 10:42 AM, Koen Kooi wrote:
> The pinmux is specified in am335x-bone-common.dtsi to be reused by the eMMC cape.
>
Also might want to state that vmmcsd_fixed 3.3 voltage rail is present
in BeagleBone White and Black, however used for emmc in bone-black.

> Signed-off-by: Koen Kooi <koen@xxxxxxxxxxxxxxxxxxxxx>
> ---
>
> Changes since v2:
> add missing pinmux entries
>
> Changes since v1:
> dropped the ti,non-removable entry per Sekhars request
>
> arch/arm/boot/dts/am335x-bone-common.dtsi | 22 ++++++++++++++++++++++
> arch/arm/boot/dts/am335x-boneblack.dts | 14 ++++++++++++++
> 2 files changed, 36 insertions(+)
>
> diff --git a/arch/arm/boot/dts/am335x-bone-common.dtsi b/arch/arm/boot/dts/am335x-bone-common.dtsi
> index ced256c..cfec441 100644
> --- a/arch/arm/boot/dts/am335x-bone-common.dtsi
> +++ b/arch/arm/boot/dts/am335x-bone-common.dtsi
> @@ -112,6 +112,21 @@
> 0x160 (PIN_INPUT | MUX_MODE7) /* GPIO0_6 */
> >;
> };
> +
> + emmc_pins: pinmux_emmc_pins {
> + pinctrl-single,pins = <
> + 0x80 (PIN_INPUT_PULLUP | MUX_MODE2) /* gpmc_csn1.mmc1_clk, INPUT_PULLUP | MODE2 */
> + 0x84 (PIN_INPUT_PULLUP | MUX_MODE1) /* gpmc_csn2.mmc1_cmd, INPUT_PULLUP | MODE2 */
> + 0x00 (PIN_INPUT_PULLUP | MUX_MODE1) /* gpmc_ad0.mmc1_dat0, INPUT_PULLUP | MODE1 */
> + 0x04 (PIN_INPUT_PULLUP | MUX_MODE1) /* gpmc_ad1.mmc1_dat1, INPUT_PULLUP | MODE1 */
> + 0x08 (PIN_INPUT_PULLUP | MUX_MODE1) /* gpmc_ad2.mmc1_dat2, INPUT_PULLUP | MODE1 */
> + 0x0c (PIN_INPUT_PULLUP | MUX_MODE1) /* gpmc_ad3.mmc1_dat3, INPUT_PULLUP | MODE1 */
> + 0x10 (PIN_INPUT_PULLUP | MUX_MODE1) /* gpmc_ad4.mmc1_dat4, INPUT_PULLUP | MODE1 */
> + 0x14 (PIN_INPUT_PULLUP | MUX_MODE1) /* gpmc_ad5.mmc1_dat5, INPUT_PULLUP | MODE1 */
> + 0x18 (PIN_INPUT_PULLUP | MUX_MODE1) /* gpmc_ad6.mmc1_dat6, INPUT_PULLUP | MODE1 */
> + 0x1c (PIN_INPUT_PULLUP | MUX_MODE1) /* gpmc_ad7.mmc1_dat7, INPUT_PULLUP | MODE1 */
> + >;
> + };
> };
>
> ocp {
> @@ -241,6 +256,13 @@
> regulator-always-on;
> };
> };
> +
> + vmmcsd_fixed: fixedregulator@0 {
> + compatible = "regulator-fixed";
> + regulator-name = "vmmcsd_fixed";
> + regulator-min-microvolt = <3300000>;
> + regulator-max-microvolt = <3300000>;
> + };
> };
>
> &cpsw_emac0 {
> diff --git a/arch/arm/boot/dts/am335x-boneblack.dts b/arch/arm/boot/dts/am335x-boneblack.dts
> index 197cadf..f4703cf 100644
> --- a/arch/arm/boot/dts/am335x-boneblack.dts
> +++ b/arch/arm/boot/dts/am335x-boneblack.dts
> @@ -15,3 +15,17 @@
> regulator-max-microvolt = <1800000>;
> regulator-always-on;
> };
> +
> +&mmc1 {
> + vmmc-supply = <&vmmcsd_fixed>;
> +};
> +
> +&mmc2 {
> + vmmc-supply = <&vmmcsd_fixed>;
> + pinctrl-names = "default";
> + pinctrl-0 = <&emmc_pins>;
> + bus-width = <8>;
> + status = "okay";
> + ti,vcc-aux-disable-is-sleep;
> +};
> +
>


--
Regards,
Nishanth Menon
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