[PATCH 6.1.y-cip 15/17] arm64: dts: renesas: rzg3e-smarc-som: Enable SDHI{0,2}

Tommaso Merciai
2025-06-23T14:47:52Z

From: Biju Das <biju.das.jz@bp.renesas.com>

commit 16bce534a391487c56aa266dff2ac5733b207f5c upstream.

Enable eMMC on SDHI0 and SD on SDHI2 on RZ/G3E SMARC SoM.

Signed-off-by: Biju Das <biju.das.jz@bp.renesas.com>
Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
Link: https://lore.kernel.org/20250206134047.67866-7-biju.das.jz@bp.renesas.com
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Tommaso Merciai <tommaso.merciai.xr@bp.renesas.com>
---
.../boot/dts/renesas/rzg3e-smarc-som.dtsi | 100 ++++++++++++++++++
1 file changed, 100 insertions(+)

diff --git a/arch/arm64/boot/dts/renesas/rzg3e-smarc-som.dtsi b/arch/arm64/boot/dts/renesas/rzg3e-smarc-som.dtsi
index f4ba050beb0d..fcbabe2cb003 100644
--- a/arch/arm64/boot/dts/renesas/rzg3e-smarc-som.dtsi
+++ b/arch/arm64/boot/dts/renesas/rzg3e-smarc-som.dtsi
@@ -8,17 +8,86 @@
/ {
compatible = "renesas,rzg3e-smarcm", "renesas,r9a09g047e57", "renesas,r9a09g047";

+ aliases {
+ mmc0 = &sdhi0;
+ mmc2 = &sdhi2;
+ };
+
memory@48000000 {
device_type = "memory";
/* First 128MB is reserved for secure area. */
reg = <0x0 0x48000000 0x0 0xf8000000>;
};
+
+ reg_1p8v: regulator-1p8v {
+ compatible = "regulator-fixed";
+ regulator-name = "fixed-1.8V";
+ regulator-min-microvolt = <1800000>;
+ regulator-max-microvolt = <1800000>;
+ regulator-boot-on;
+ regulator-always-on;
+ };
+
+ reg_3p3v: regulator-3p3v {
+ compatible = "regulator-fixed";
+ regulator-name = "fixed-3.3V";
+ regulator-min-microvolt = <3300000>;
+ regulator-max-microvolt = <3300000>;
+ regulator-boot-on;
+ regulator-always-on;
+ };
};

&audio_extal_clk {
clock-frequency = <48000000>;
};

+&pinctrl {
+ sdhi0_emmc_pins: sd0-emmc {
+ sd0-ctrl {
+ pins = "SD0CLK", "SD0CMD";
+ renesas,output-impedance = <3>;
+ };
+
+ sd0-data {
+ pins = "SD0DAT0", "SD0DAT1", "SD0DAT2", "SD0DAT3",
+ "SD0DAT4", "SD0DAT5", "SD0DAT6", "SD0DAT7";
+ renesas,output-impedance = <3>;
+ };
+
+ sd0-rst {
+ pins = "SD0RSTN";
+ renesas,output-impedance = <3>;
+ };
+ };
+
+ sdhi2_pins: sd2 {
+ sd2-cd {
+ pinmux = <RZG3E_PORT_PINMUX(K, 0, 1)>; /* SD2CD */
+ };
+
+ sd2-ctrl {
+ pinmux = <RZG3E_PORT_PINMUX(H, 0, 1)>, /* SD2CLK */
+ <RZG3E_PORT_PINMUX(H, 1, 1)>; /* SD2CMD */
+ };
+
+ sd2-data {
+ pinmux = <RZG3E_PORT_PINMUX(H, 2, 1)>, /* SD2DAT0 */
+ <RZG3E_PORT_PINMUX(H, 3, 1)>, /* SD2DAT1 */
+ <RZG3E_PORT_PINMUX(H, 4, 1)>, /* SD2DAT2 */
+ <RZG3E_PORT_PINMUX(H, 5, 1)>; /* SD2DAT3 */
+ };
+
+ sd2-iovs {
+ pinmux = <RZG3E_PORT_PINMUX(K, 1, 1)>; /* SD2IOVS */
+ };
+
+ sd2-pwen {
+ pinmux = <RZG3E_PORT_PINMUX(K, 2, 1)>; /* SD2PWEN */
+ };
+ };
+};
+
&qextal_clk {
clock-frequency = <24000000>;
};
@@ -27,6 +96,37 @@ &rtxin_clk {
clock-frequency = <32768>;
};

+&sdhi0 {
+ pinctrl-0 = <&sdhi0_emmc_pins>;
+ pinctrl-1 = <&sdhi0_emmc_pins>;
+ pinctrl-names = "default", "state_uhs";
+
+ vmmc-supply = <&reg_3p3v>;
+ vqmmc-supply = <&reg_1p8v>;
+ bus-width = <8>;
+ mmc-hs200-1_8v;
+ non-removable;
+ fixed-emmc-driver-type = <1>;
+ status = "okay";
+};
+
+&sdhi2 {
+ pinctrl-0 = <&sdhi2_pins>;
+ pinctrl-1 = <&sdhi2_pins>;
+ pinctrl-names = "default", "state_uhs";
+
+ vmmc-supply = <&reg_3p3v>;
+ vqmmc-supply = <&sdhi2_vqmmc>;
+ bus-width = <4>;
+ sd-uhs-sdr50;
+ sd-uhs-sdr104;
+ status = "okay";
+};
+
+&sdhi2_vqmmc {
+ status = "okay";
+};
+
&wdt1 {
status = "okay";
};
--
2.43.0