[PATCH v1 3/9] arm64: dts: ti: k3-am62a7-sk: Enable eMMC support

Judith Mendez
2024-02-07T22:56:03Z

From: Nitin Yadav <n-yadav@ti.com>

Add support for 32GB eMMC card on AM62A7 SK. Includes adding mmc0
pins settings. Add mmc0 alias for sdhci0 in k3-am62a7-sk.dts.

Signed-off-by: Nitin Yadav <n-yadav@ti.com>
Signed-off-by: Judith Mendez <jm@ti.com>
---
arch/arm64/boot/dts/ti/k3-am62a7-sk.dts | 26 +++++++++++++++++++++++++
1 file changed, 26 insertions(+)

diff --git a/arch/arm64/boot/dts/ti/k3-am62a7-sk.dts b/arch/arm64/boot/dts/ti/k3-am62a7-sk.dts
index f5ae91bf1bdb..c99b2e90f76d 100644
--- a/arch/arm64/boot/dts/ti/k3-am62a7-sk.dts
+++ b/arch/arm64/boot/dts/ti/k3-am62a7-sk.dts
@@ -20,6 +20,7 @@ aliases {
serial0 = &wkup_uart0;
serial2 = &main_uart0;
serial3 = &main_uart1;
+ mmc0 = &sdhci0;
mmc1 = &sdhci1;
};

@@ -263,6 +264,22 @@ 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 */
@@ -550,6 +567,15 @@ &main_i2c2 {
clock-frequency = <400000>;
};

+&sdhci0 {
+ /* eMMC */
+ status = "okay";
+ non-removable;
+ pinctrl-names = "default";
+ pinctrl-0 = <&main_mmc0_pins_default>;
+ disable-wp;
+};
+
&sdhci1 {
/* SD/MMC */
status = "okay";