linux-kernel - Re: [PATCH v2 2/2] arm64: dts: ti: k3-am654-base-board: Add MMC support

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Date:   Tue, 15 Jan 2019 08:28:54 -0600
From:   Nishanth Menon <nm@...com>
To:     Faiz Abbas <faiz_abbas@...com>
CC:     <linux-kernel@...r.kernel.org>, <devicetree@...r.kernel.org>,
        <linux-arm-kernel@...ts.infradead.org>, <mark.rutland@....com>,
        <robh+dt@...nel.org>, <t-kristo@...com>
Subject: Re: [PATCH v2 2/2] arm64: dts: ti: k3-am654-base-board: Add MMC
 support

Similar problem here as well.. $subject probably needs to be explicit
about eMMC?

On 13:03-20190110, Faiz Abbas wrote:
> On the am654x-evm, the sdhci0 node is connected to an eMMC. Add node and
> pinmux for the same.
> 
> Signed-off-by: Faiz Abbas <faiz_abbas@...com>
> ---
>  .../arm64/boot/dts/ti/k3-am654-base-board.dts | 25 +++++++++++++++++++
>  1 file changed, 25 insertions(+)
> 
> diff --git a/arch/arm64/boot/dts/ti/k3-am654-base-board.dts b/arch/arm64/boot/dts/ti/k3-am654-base-board.dts
> index e41fc3a5987b..11e9a2a43dfc 100644
> --- a/arch/arm64/boot/dts/ti/k3-am654-base-board.dts
> +++ b/arch/arm64/boot/dts/ti/k3-am654-base-board.dts
> @@ -69,6 +69,23 @@
>  			AM65X_IOPAD(0x01bc, PIN_OUTPUT, 0) /* (AG13) SPI0_CS0 */
>  		>;
>  	};
> +
> +	main_mmc0_pins_default: main-mmc0-pins-default {
> +		pinctrl-single,pins = <
> +			AM65X_IOPAD(0x01a8, PIN_INPUT_PULLDOWN, 0) /* (B25) MMC0_CLK */
> +			AM65X_IOPAD(0x01ac, PIN_INPUT_PULLUP, 0) /* (B27) MMC0_CMD */
> +			AM65X_IOPAD(0x01a4, PIN_INPUT_PULLUP, 0) /* (A26) MMC0_DAT0 */
> +			AM65X_IOPAD(0x01a0, PIN_INPUT_PULLUP, 0) /* (E25) MMC0_DAT1 */
> +			AM65X_IOPAD(0x019c, PIN_INPUT_PULLUP, 0) /* (C26) MMC0_DAT2 */
> +			AM65X_IOPAD(0x0198, PIN_INPUT_PULLUP, 0) /* (A25) MMC0_DAT3 */
> +			AM65X_IOPAD(0x0194, PIN_INPUT_PULLUP, 0) /* (E24) MMC0_DAT4 */
> +			AM65X_IOPAD(0x0190, PIN_INPUT_PULLUP, 0) /* (A24) MMC0_DAT5 */
> +			AM65X_IOPAD(0x018c, PIN_INPUT_PULLUP, 0) /* (B26) MMC0_DAT6 */
> +			AM65X_IOPAD(0x0188, PIN_INPUT_PULLUP, 0) /* (D25) MMC0_DAT7 */
> +			AM65X_IOPAD(0x01b4, PIN_INPUT_PULLUP, 0) /* (A23) MMC0_SDCD */
> +			AM65X_IOPAD(0x01b0, PIN_INPUT, 0) /* (C25) MMC0_DS */
> +		>;
> +	};
>  };
>  
>  &main_pmx1 {
> @@ -163,3 +180,11 @@
>  		#size-cells= <1>;
>  	};
>  };
> +
> +&sdhci0 {
> +	pinctrl-names = "default";
> +	pinctrl-0 = <&main_mmc0_pins_default>;
> +	bus-width = <8>;
> +	non-removable;
> +	ti,driver-strength-ohm = <50>;
> +};
> -- 
> 2.19.2
> 

-- 
Regards,
Nishanth Menon