[RFC PATCH v3 13/16] ARM: dts: add AM33XX MMC support
AnilKumar, Chimata
anilkumar at ti.com
Tue Oct 30 01:33:40 EDT 2012
On Thu, Oct 18, 2012 at 18:56:52, Porter, Matt wrote:
> Adds AM33XX MMC support for am335x-bone and am335x-evm.
>
> Signed-off-by: Matt Porter <mporter at ti.com>
> ---
> arch/arm/boot/dts/am335x-bone.dts | 6 ++++++
> arch/arm/boot/dts/am335x-evm.dts | 6 ++++++
> arch/arm/boot/dts/am33xx.dtsi | 27 +++++++++++++++++++++++++++
> 3 files changed, 39 insertions(+)
>
> diff --git a/arch/arm/boot/dts/am335x-bone.dts b/arch/arm/boot/dts/am335x-bone.dts
> index c634f87..5510979 100644
> --- a/arch/arm/boot/dts/am335x-bone.dts
> +++ b/arch/arm/boot/dts/am335x-bone.dts
> @@ -70,6 +70,8 @@
> };
>
> ldo3_reg: regulator at 5 {
> + regulator-min-microvolt = <1800000>;
> + regulator-max-microvolt = <3300000>;
I think these min & max limits are regulator limits. Are these fields
required? Add details of these additions. AFAIK fine-tuned (board
specific) min/max limits should be add here(like mpu and core
regulator nodes)
> regulator-always-on;
> };
>
> @@ -78,3 +80,7 @@
> };
> };
> };
> +
> +&mmc1 {
> + vmmc-supply = <&ldo3_reg>;
> +};
> diff --git a/arch/arm/boot/dts/am335x-evm.dts b/arch/arm/boot/dts/am335x-evm.dts
> index 185d632..d63fce8 100644
> --- a/arch/arm/boot/dts/am335x-evm.dts
> +++ b/arch/arm/boot/dts/am335x-evm.dts
> @@ -114,7 +114,13 @@
> };
>
> vmmc_reg: regulator at 12 {
> + regulator-min-microvolt = <1800000>;
> + regulator-max-microvolt = <3300000>;
=same=
> regulator-always-on;
> };
> };
> };
> +
> +&mmc1 {
> + vmmc-supply = <&vmmc_reg>;
> +};
> diff --git a/arch/arm/boot/dts/am33xx.dtsi b/arch/arm/boot/dts/am33xx.dtsi
> index ab9c78f..26a6af7 100644
> --- a/arch/arm/boot/dts/am33xx.dtsi
> +++ b/arch/arm/boot/dts/am33xx.dtsi
> @@ -234,6 +234,33 @@
> status = "disabled";
> };
>
> + mmc1: mmc at 48060000 {
> + compatible = "ti,omap3-hsmmc";
> + ti,hwmods = "mmc1";
> + ti,dual-volt;
> + ti,needs-special-reset;
> + dmas = <&edma 24
> + &edma 25>;
> + dma-names = "tx", "rx";
Add status = "disabled" here and "okay" in corresponding
.dts file
> + };
> +
> + mmc2: mmc at 481d8000 {
> + compatible = "ti,omap3-hsmmc";
> + ti,hwmods = "mmc2";
> + ti,needs-special-reset;
> + dmas = <&edma 2
> + &edma 3>;
> + dma-names = "tx", "rx";
> + status = "disabled";
> + };
> +
> + mmc3: mmc at 47810000 {
> + compatible = "ti,omap3-hsmmc";
> + ti,hwmods = "mmc3";
> + ti,needs-special-reset;
What about DMA resources for mmc3?
AnilKumar
> + status = "disabled";
> + };
> +
> wdt2: wdt at 44e35000 {
> compatible = "ti,omap3-wdt";
> ti,hwmods = "wd_timer2";
> --
> 1.7.9.5
>
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