On 12/04/2015 03:25 AM, Tony Lindgren wrote:
> There's a 2GB emmc on hp t410 that's wired to the sd_2 interface.
> Note that we also need to configure the evtmux using edma_xbar for
> edma channels.
>
> Signed-off-by: Tony Lindgren <tony@xxxxxxxxxxx>
One question inlined for the mmc3, other than that:
Reviewed-by: Peter Ujfalusi <peter.ujfalusi@xxxxxx>
> ---
> arch/arm/boot/dts/dm8148-t410.dts | 35 +++++++++++++++++++++++++++++++++++
> 1 file changed, 35 insertions(+)
>
> diff --git a/arch/arm/boot/dts/dm8148-t410.dts b/arch/arm/boot/dts/dm8148-t410.dts
> index 79838dd..d1927a7 100644
> --- a/arch/arm/boot/dts/dm8148-t410.dts
> +++ b/arch/arm/boot/dts/dm8148-t410.dts
> @@ -15,6 +15,13 @@
> device_type = "memory";
> reg = <0x80000000 0x40000000>; /* 1 GB */
> };
> +
> + vmmcsd_fixed: fixedregulator@0 {
> + compatible = "regulator-fixed";
> + regulator-name = "vmmcsd_fixed";
> + regulator-min-microvolt = <3300000>;
> + regulator-max-microvolt = <3300000>;
> + };
> };
>
> &cpsw_emac0 {
> @@ -26,3 +33,31 @@
> phy_id = <&davinci_mdio>, <1>;
> phy-mode = "rgmii";
> };
> +
> +&mmc3 {
> + pinctrl-names = "default";
> + pinctrl-0 = <&sd2_pins>;
> + vmmc-supply = <&vmmcsd_fixed>;
> + bus-width = <8>;
> + dmas = <&edma_xbar 8 0 1 /* use SDTXEVT1 instead of MCASP0TX */
> + &edma_xbar 9 0 2>; /* use SDRXEVT1 instead of MCASP0RX */
> + dma-names = "tx", "rx";
Do you happened to know how the audio is connected on the board?
The DM814x-EVM seams to be using McASP2 with aic3106 so it is possible that HP
copied the design from there...
> +};
> +
> +&pincntl {
> + sd2_pins: pinmux_sd2_pins {
> + pinctrl-single,pins = <
> + DM814X_IOPAD(0x09c0, PIN_INPUT_PULLUP | 0x1) /* SD2_DAT[7] */
> + DM814X_IOPAD(0x09c4, PIN_INPUT_PULLUP | 0x1) /* SD2_DAT[6] */
> + DM814X_IOPAD(0x09c8, PIN_INPUT_PULLUP | 0x1) /* SD2_DAT[5] */
> + DM814X_IOPAD(0x09cc, PIN_INPUT_PULLUP | 0x1) /* SD2_DAT[4] */
> + DM814X_IOPAD(0x09d0, PIN_INPUT_PULLUP | 0x1) /* SD2_DAT[3] */
> + DM814X_IOPAD(0x09d4, PIN_INPUT_PULLUP | 0x1) /* SD2_DAT[2] */
> + DM814X_IOPAD(0x09d8, PIN_INPUT_PULLUP | 0x1) /* SD2_DAT[1] */
> + DM814X_IOPAD(0x09dc, PIN_INPUT_PULLUP | 0x1) /* SD2_DAT[0] */
> + DM814X_IOPAD(0x09e0, PIN_INPUT | 0x1) /* SD2_CLK */
> + DM814X_IOPAD(0x09f4, PIN_INPUT_PULLUP | 0x2) /* SD2_CMD */
> + DM814X_IOPAD(0x0920, PIN_INPUT | 40) /* SD2_SDCD */
> + >;
> + };
> +};
>
--
Péter
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