arm64: dts: renesas: rzt2h-rzn2h-evk: Enable SD card slot

Enable SD card slot which is connected to SDHI0 on the RZ/T2H and
RZ/N2H EVKs.

Signed-off-by: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com>
Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
Link: https://lore.kernel.org/20250820200659.2048755-10-prabhakar.mahadev-lad.rj@bp.renesas.com
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>

diff --git a/arch/arm64/boot/dts/renesas/r9a09g077m44-rzt2h-evk.dts b/arch/arm64/boot/dts/renesas/r9a09g077m44-rzt2h-evk.dts
index 37330c837f6407ec5eedc5ce5dfedaa91785f889..264f7ddb8cc5dc6b908fa9d41abbe15585ae7bfc 100644 (file)
--- a/arch/arm64/boot/dts/renesas/r9a09g077m44-rzt2h-evk.dts
+++ b/arch/arm64/boot/dts/renesas/r9a09g077m44-rzt2h-evk.dts
@@ -14,8 +14,13 @@
  * Lets by default enable the eMMC, note we need the below SW settings
  * for eMMC.
  * SW2[1] = ON; SW2[2] = ON
+ *
+ * To enable SD card and disable eMMC on SDHI0 disable the below macro
+ * and set the below switch setting:
+ * SW2[1] = OFF; SW2[2] = ON
  */
 #define SD0_EMMC       1
+#define SD0_SD         (!SD0_EMMC)
 
 /*
  * P17_4 = SD1_CD; SW2[3] = ON

diff --git a/arch/arm64/boot/dts/renesas/r9a09g087m44-rzn2h-evk.dts b/arch/arm64/boot/dts/renesas/r9a09g087m44-rzn2h-evk.dts
index 87178933bee8d0a66e61b68fa6df975aab505569..80f358fb2d742590db40a97f3e04339844c77d54 100644 (file)
--- a/arch/arm64/boot/dts/renesas/r9a09g087m44-rzn2h-evk.dts
+++ b/arch/arm64/boot/dts/renesas/r9a09g087m44-rzn2h-evk.dts
@@ -15,8 +15,17 @@
  * for eMMC.
  * DSW5[1] = ON; DSW5[2] = ON
  * DSW17[5] = OFF; DSW17[6] = ON
+ *
+ * To enable SD card and disable eMMC on SDHI0 disable the below macro
+ * and set the below switch setting:
+ * DSW5[1] = OFF; DSW5[2] = ON
+ * P22_6 = SD0_WP; DSW15[1] = OFF; DSW15[2] = ON
+ * P22_5 = SD0_CD; DSW15[3] = OFF; DSW15[4] = ON
+ * P02_6 = SD0_IOVS; DSW17[5] = OFF; DSW17[6] = ON
+ * P02_5 = SD0_PWEN; DSW17[7] = OFF; DSW17[8] = ON
  */
 #define SD0_EMMC       1
+#define SD0_SD         (!SD0_EMMC)
 
 /*
  * P17_4 = SD1_CD; DSW5[3] = ON; DSW19[1] = OFF; DSW19[2] = ON

diff --git a/arch/arm64/boot/dts/renesas/rzt2h-n2h-evk-common.dtsi b/arch/arm64/boot/dts/renesas/rzt2h-n2h-evk-common.dtsi
index 34572630ecbe77532600d4282db7aeb312cd0bc0..8b9d04dce8ae05aa33ffcccbd9647c5f674e9da2 100644 (file)
--- a/arch/arm64/boot/dts/renesas/rzt2h-n2h-evk-common.dtsi
+++ b/arch/arm64/boot/dts/renesas/rzt2h-n2h-evk-common.dtsi
@@ -40,6 +40,18 @@
                regulator-always-on;
        };
 
+#if SD0_SD
+       vqmmc_sdhi0: regulator-vqmmc-sdhi0 {
+               compatible = "regulator-gpio";
+               regulator-name = "SDHI0 VqmmC";
+               gpios = <&pinctrl RZT2H_GPIO(2, 6) GPIO_ACTIVE_HIGH>;
+               regulator-min-microvolt = <1800000>;
+               regulator-max-microvolt = <3300000>;
+               gpios-states = <0>;
+               states = <3300000 0>, <1800000 1>;
+       };
+#endif
+
 #if SD1_MICRO_SD
        vccq_sdhi1: regulator-vccq-sdhi1 {
                compatible = "regulator-gpio";
@@ -107,6 +119,31 @@
                };
        };
 
+#if SD0_SD
+       sdhi0-pwen-hog {
+               gpio-hog;
+               gpios = <RZT2H_GPIO(2, 5) GPIO_ACTIVE_HIGH>;
+               output-high;
+               line-name = "SD0_PWEN";
+       };
+#endif
+
+       sdhi0_sd_pins: sd0-sd-group {
+               data-pins {
+                       pinmux = <RZT2H_PORT_PINMUX(12, 2, 0x29)>, /* SD0_DATA0 */
+                                <RZT2H_PORT_PINMUX(12, 3, 0x29)>, /* SD0_DATA1 */
+                                <RZT2H_PORT_PINMUX(12, 4, 0x29)>, /* SD0_DATA2 */
+                                <RZT2H_PORT_PINMUX(12, 5, 0x29)>; /* SD0_DATA3 */
+               };
+
+               ctrl-pins {
+                       pinmux = <RZT2H_PORT_PINMUX(12, 0, 0x29)>, /* SD0_CLK */
+                                <RZT2H_PORT_PINMUX(12, 1, 0x29)>, /* SD0_CMD */
+                                <RZT2H_PORT_PINMUX(22, 5, 0x29)>, /* SD0_CD */
+                                <RZT2H_PORT_PINMUX(22, 6, 0x29)>; /* SD0_WP */
+               };
+       };
+
 #if SD1_MICRO_SD
        sdhi1-pwen-hog {
                gpio-hog;
@@ -153,6 +190,20 @@
 };
 #endif
 
+#if SD0_SD
+&sdhi0 {
+       pinctrl-0 = <&sdhi0_sd_pins>;
+       pinctrl-1 = <&sdhi0_sd_pins>;
+       pinctrl-names = "default", "state_uhs";
+       vmmc-supply = <&reg_3p3v>;
+       vqmmc-supply = <&vqmmc_sdhi0>;
+       bus-width = <4>;
+       sd-uhs-sdr50;
+       sd-uhs-sdr104;
+       status = "okay";
+};
+#endif
+
 #if SD1_MICRO_SD
 &sdhi1 {
        pinctrl-0 = <&sdhi1_pins>;