2023-10-27 09:40:31

by Nitin Yadav

Subject: [PATCH 2/2] arm64: dts: ti: k3-am62a7-sk: Enable eMMC support

Add support for 32GB eMMC card on AM62A7. Includes adding mmc0
pins settings and set sdhci0 status to okay.

Signed-off-by: Nitin Yadav <[email protected]>
---
arch/arm64/boot/dts/ti/k3-am62a7-sk.dts | 24 ++++++++++++++++++++++++
1 file changed, 24 insertions(+)

diff --git a/arch/arm64/boot/dts/ti/k3-am62a7-sk.dts b/arch/arm64/boot/dts/ti/k3-am62a7-sk.dts
index 5d28c390b28e..c6f144d91734 100644
--- a/arch/arm64/boot/dts/ti/k3-am62a7-sk.dts
+++ b/arch/arm64/boot/dts/ti/k3-am62a7-sk.dts
@@ -173,6 +173,22 @@ AM62AX_IOPAD(0x0b4, PIN_INPUT_PULLUP, 1) /* (K24) GPMC0_CSn3.I2C2_SDA */
>;
};

+ main_mmc0_pins_default: main-mmc0-default-pins {
+ pinctrl-single,pins = <
+ AM62AX_IOPAD(0x220, PIN_INPUT, 0) /* (Y3) MMC0_CMD */
+ AM62AX_IOPAD(0x218, PIN_INPUT, 0) /* (AB1) MMC0_CLKLB */
+ AM62AX_IOPAD(0x21c, PIN_INPUT, 0) /* (AB1) MMC0_CLK */
+ AM62AX_IOPAD(0x214, PIN_INPUT, 0) /* (AA2) MMC0_DAT0 */
+ AM62AX_IOPAD(0x210, PIN_INPUT_PULLUP, 0) /* (AA1) MMC0_DAT1 */
+ AM62AX_IOPAD(0x20c, PIN_INPUT_PULLUP, 0) /* (AA3) MMC0_DAT2 */
+ AM62AX_IOPAD(0x208, PIN_INPUT_PULLUP, 0) /* (Y4) MMC0_DAT3 */
+ AM62AX_IOPAD(0x204, PIN_INPUT_PULLUP, 0) /* (AB2) MMC0_DAT4 */
+ AM62AX_IOPAD(0x200, PIN_INPUT_PULLUP, 0) /* (AC1) MMC0_DAT5 */
+ AM62AX_IOPAD(0x1fc, PIN_INPUT_PULLUP, 0) /* (AD2) MMC0_DAT6 */
+ AM62AX_IOPAD(0x1f8, PIN_INPUT_PULLUP, 0) /* (AC2) MMC0_DAT7 */
+ >;
+ };
+
main_mmc1_pins_default: main-mmc1-default-pins {
pinctrl-single,pins = <
AM62AX_IOPAD(0x23c, PIN_INPUT, 0) /* (A21) MMC1_CMD */
@@ -362,3 +378,11 @@ cpsw3g_phy0: ethernet-phy@0 {
ti,min-output-impedance;
};
};
+
+&sdhci0 {
+ status = "okay";
+ pinctrl-names = "default";
+ pinctrl-0 = <&main_mmc0_pins_default>;
+ ti,driver-strength-ohm = <50>;
+ disable-wp;
+};
--
2.25.1

2023-10-27 11:23:20

by Nishanth Menon

Subject: Re: [PATCH 2/2] arm64: dts: ti: k3-am62a7-sk: Enable eMMC support

On 15:09-20231027, Nitin Yadav wrote:
> Add support for 32GB eMMC card on AM62A7. Includes adding mmc0
> pins settings and set sdhci0 status to okay.

You can drop the second sentence. Also, in this case, since you are
modifying the board dts, it should be AM62A7 SK.

>
> Signed-off-by: Nitin Yadav <[email protected]>
> ---
> arch/arm64/boot/dts/ti/k3-am62a7-sk.dts | 24 ++++++++++++++++++++++++
> 1 file changed, 24 insertions(+)
>
> diff --git a/arch/arm64/boot/dts/ti/k3-am62a7-sk.dts b/arch/arm64/boot/dts/ti/k3-am62a7-sk.dts
> index 5d28c390b28e..c6f144d91734 100644
> --- a/arch/arm64/boot/dts/ti/k3-am62a7-sk.dts
> +++ b/arch/arm64/boot/dts/ti/k3-am62a7-sk.dts
> @@ -173,6 +173,22 @@ AM62AX_IOPAD(0x0b4, PIN_INPUT_PULLUP, 1) /* (K24) GPMC0_CSn3.I2C2_SDA */
> >;
> };
>
> + main_mmc0_pins_default: main-mmc0-default-pins {
> + pinctrl-single,pins = <
> + AM62AX_IOPAD(0x220, PIN_INPUT, 0) /* (Y3) MMC0_CMD */
> + AM62AX_IOPAD(0x218, PIN_INPUT, 0) /* (AB1) MMC0_CLKLB */
> + AM62AX_IOPAD(0x21c, PIN_INPUT, 0) /* (AB1) MMC0_CLK */
> + AM62AX_IOPAD(0x214, PIN_INPUT, 0) /* (AA2) MMC0_DAT0 */
> + AM62AX_IOPAD(0x210, PIN_INPUT_PULLUP, 0) /* (AA1) MMC0_DAT1 */
> + AM62AX_IOPAD(0x20c, PIN_INPUT_PULLUP, 0) /* (AA3) MMC0_DAT2 */
> + AM62AX_IOPAD(0x208, PIN_INPUT_PULLUP, 0) /* (Y4) MMC0_DAT3 */
> + AM62AX_IOPAD(0x204, PIN_INPUT_PULLUP, 0) /* (AB2) MMC0_DAT4 */
> + AM62AX_IOPAD(0x200, PIN_INPUT_PULLUP, 0) /* (AC1) MMC0_DAT5 */
> + AM62AX_IOPAD(0x1fc, PIN_INPUT_PULLUP, 0) /* (AD2) MMC0_DAT6 */
> + AM62AX_IOPAD(0x1f8, PIN_INPUT_PULLUP, 0) /* (AC2) MMC0_DAT7 */
> + >;
> + };
> +
> main_mmc1_pins_default: main-mmc1-default-pins {
> pinctrl-single,pins = <
> AM62AX_IOPAD(0x23c, PIN_INPUT, 0) /* (A21) MMC1_CMD */
> @@ -362,3 +378,11 @@ cpsw3g_phy0: ethernet-phy@0 {
> ti,min-output-impedance;
> };
> };
> +
> +&sdhci0 {
> + status = "okay";
> + pinctrl-names = "default";
> + pinctrl-0 = <&main_mmc0_pins_default>;
> + ti,driver-strength-ohm = <50>;
> + disable-wp;
> +};
> --
> 2.25.1
>

--
Regards,
Nishanth Menon
Key (0xDDB5849D1736249D) / Fingerprint: F8A2 8693 54EB 8232 17A3 1A34 DDB5 849D 1736 249D