From: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com>
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>
---
.../dts/renesas/r9a09g077m44-rzt2h-evk.dts | 5 ++
.../dts/renesas/r9a09g087m44-rzn2h-evk.dts | 9 +++
.../dts/renesas/rzt2h-n2h-evk-common.dtsi | 55 +++++++++++++++++++
3 files changed, 69 insertions(+)
diff --git a/arch/arm64/boot/dts/renesas/r9a09g077m44-rzt2h-evk.dts b/arch/arm64/boot/dts/renesas/r9a09g077m44-rzt2h-evk.dts
index 1841700b264f..309080767ff2 100644
--- a/arch/arm64/boot/dts/renesas/r9a09g077m44-rzt2h-evk.dts
+++ b/arch/arm64/boot/dts/renesas/r9a09g077m44-rzt2h-evk.dts
@@ -17,8 +17,13 @@
* 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 1b13995e5020..33d9b783ff11 100644
--- a/arch/arm64/boot/dts/renesas/r9a09g087m44-rzn2h-evk.dts
+++ b/arch/arm64/boot/dts/renesas/r9a09g087m44-rzn2h-evk.dts
@@ -16,8 +16,17 @@
* Lets by default enable the eMMC, note we need the below SW settings
* for eMMC.
* DSW5[1] = ON; DSW5[2] = 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
+ * DSW15[3] = OFF; DSW15[4] = ON
+ * DSW15[1] = OFF; DSW15[2] = ON
+ * DSW17[7] = OFF; DSW17[8] = ON
+ * DSW17[5] = OFF; DSW17[6] = 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 304a0c8764ca..f87dde8716d8 100644
--- a/arch/arm64/boot/dts/renesas/rzt2h-n2h-evk-common.dtsi
+++ b/arch/arm64/boot/dts/renesas/rzt2h-n2h-evk-common.dtsi
@@ -37,6 +37,18 @@ reg_3p3v: regulator-3p3v {
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";
@@ -104,6 +116,35 @@ sd0-emmc-ctrl-pins {
};
};
+#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 {
+ sd0-sd-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 */
+ <RZT2H_PORT_PINMUX(12, 6, 0x29)>, /* SD0_DATA4 */
+ <RZT2H_PORT_PINMUX(12, 7, 0x29)>, /* SD0_DATA5 */
+ <RZT2H_PORT_PINMUX(13, 0, 0x29)>, /* SD0_DATA6 */
+ <RZT2H_PORT_PINMUX(13, 1, 0x29)>; /* SD0_DATA7 */
+ };
+
+ sd0-sd-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;
@@ -150,6 +191,20 @@ &sdhi0 {
};
#endif
+#if SD0_SD
+&sdhi0 {
+ pinctrl-0 = <&sdhi0_sd_pins>;
+ pinctrl-1 = <&sdhi0_sd_pins>;
+ pinctrl-names = "default", "state_uhs";
+ vmmc-supply = <®_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>;
--
2.50.1Hi Prabhakar,
On Tue, 12 Aug 2025 at 22:04, Prabhakar <prabhakar.csengg@gmail.com> wrote:
> From: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com>
>
> 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>
Thanks for your patch!
> --- a/arch/arm64/boot/dts/renesas/rzt2h-n2h-evk-common.dtsi
> +++ b/arch/arm64/boot/dts/renesas/rzt2h-n2h-evk-common.dtsi
> @@ -104,6 +116,35 @@ sd0-emmc-ctrl-pins {
> };
> };
>
> +#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 {
> + sd0-sd-data-pins {
No need for repeated sd0-sd-prefixes in the subnodes.
> + 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 */
> + <RZT2H_PORT_PINMUX(12, 6, 0x29)>, /* SD0_DATA4 */
> + <RZT2H_PORT_PINMUX(12, 7, 0x29)>, /* SD0_DATA5 */
> + <RZT2H_PORT_PINMUX(13, 0, 0x29)>, /* SD0_DATA6 */
> + <RZT2H_PORT_PINMUX(13, 1, 0x29)>; /* SD0_DATA7 */
> + };
SDcard uses only DATA0-3?
> +
> + sd0-sd-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;
The rest LGTM.
Gr{oetje,eeting}s,
Geert
--
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@linux-m68k.org
In personal conversations with technical people, I call myself a hacker. But
when I'm talking to journalists I just say "programmer" or something like that.
-- Linus Torvalds
Hi Geert,
Thank you for the review.
On Mon, Aug 18, 2025 at 5:03 PM Geert Uytterhoeven <geert@linux-m68k.org> wrote:
>
> Hi Prabhakar,
>
> On Tue, 12 Aug 2025 at 22:04, Prabhakar <prabhakar.csengg@gmail.com> wrote:
> > From: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com>
> >
> > 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>
>
> Thanks for your patch!
>
> > --- a/arch/arm64/boot/dts/renesas/rzt2h-n2h-evk-common.dtsi
> > +++ b/arch/arm64/boot/dts/renesas/rzt2h-n2h-evk-common.dtsi
>
> > @@ -104,6 +116,35 @@ sd0-emmc-ctrl-pins {
> > };
> > };
> >
> > +#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 {
> > + sd0-sd-data-pins {
>
> No need for repeated sd0-sd-prefixes in the subnodes.
>
Ok, I will drop it.
> > + 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 */
> > + <RZT2H_PORT_PINMUX(12, 6, 0x29)>, /* SD0_DATA4 */
> > + <RZT2H_PORT_PINMUX(12, 7, 0x29)>, /* SD0_DATA5 */
> > + <RZT2H_PORT_PINMUX(13, 0, 0x29)>, /* SD0_DATA6 */
> > + <RZT2H_PORT_PINMUX(13, 1, 0x29)>; /* SD0_DATA7 */
> > + };
>
> SDcard uses only DATA0-3?
>
Agreed, I will drop the rest.
Cheers,
Prabhakar
> > +
> > + sd0-sd-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;
>
> The rest LGTM.
>
> Gr{oetje,eeting}s,
>
> Geert
>
> --
> Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@linux-m68k.org
>
> In personal conversations with technical people, I call myself a hacker. But
> when I'm talking to journalists I just say "programmer" or something like that.
> -- Linus Torvalds
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