Add uSD card support to the iwg23s single board computer powered
by the RZ/G1C SoC (a.k.a. r8a77470).
Signed-off-by: Fabrizio Castro <fabrizio.castro@xxxxxxxxxxxxxx>
Reviewed-by: Biju Das <biju.das@xxxxxxxxxxxxxx>
---
Hello Simon,
this patch can only be taken after patch "pinctrl: sh-pfc: r8a77470:
Add SDHI2 voltage switch" from this series appears on a release candidate
or a release.
Shall I re-send it at a later stage or are you happy to keep it around
and defer its application to when its dependency is sorted?
Thanks,
Fab
arch/arm/boot/dts/r8a77470-iwg23s-sbc.dts | 49 +++++++++++++++++++++++++++++++
1 file changed, 49 insertions(+)
diff --git a/arch/arm/boot/dts/r8a77470-iwg23s-sbc.dts b/arch/arm/boot/dts/r8a77470-iwg23s-sbc.dts
index 22da819..cd9c3fc 100644
--- a/arch/arm/boot/dts/r8a77470-iwg23s-sbc.dts
+++ b/arch/arm/boot/dts/r8a77470-iwg23s-sbc.dts
@@ -6,6 +6,7 @@
*/
/dts-v1/;
+#include <dt-bindings/gpio/gpio.h>
#include "r8a77470.dtsi"
/ {
model = "iWave iW-RainboW-G23S single board computer based on RZ/G1C";
@@ -25,6 +26,29 @@
device_type = "memory";
reg = <0 0x40000000 0 0x20000000>;
};
+
+ vcc_sdhi2: regulator-vcc-sdhi2 {
+ compatible = "regulator-fixed";
+
+ regulator-name = "SDHI2 Vcc";
+ regulator-min-microvolt = <3300000>;
+ regulator-max-microvolt = <3300000>;
+
+ enable-active-high;
+ };
+
+ vccq_sdhi2: regulator-vccq-sdhi2 {
+ compatible = "regulator-gpio";
+
+ regulator-name = "SDHI2 VccQ";
+ regulator-min-microvolt = <1800000>;
+ regulator-max-microvolt = <3300000>;
+
+ gpios = <&gpio2 24 GPIO_ACTIVE_LOW>;
+ gpios-states = <1>;
+ states = <3300000 1
+ 1800000 0>;
+ };
};
&avb {
@@ -50,6 +74,18 @@
groups = "scif1_data_b";
function = "scif1";
};
+
+ sdhi2_pins: sd2 {
+ groups = "sdhi2_data4", "sdhi2_ctrl";
+ function = "sdhi2";
+ power-source = <3300>;
+ };
+
+ sdhi2_pins_uhs: sd2_uhs {
+ groups = "sdhi2_data4", "sdhi2_ctrl";
+ function = "sdhi2";
+ power-source = <1800>;
+ };
};
&scif1 {
@@ -58,3 +94,16 @@
status = "okay";
};
+
+&sdhi2 {
+ pinctrl-0 = <&sdhi2_pins>;
+ pinctrl-1 = <&sdhi2_pins_uhs>;
+ pinctrl-names = "default", "state_uhs";
+
+ vmmc-supply = <&vcc_sdhi2>;
+ vqmmc-supply = <&vccq_sdhi2>;
+ bus-width = <4>;
+ cd-gpios = <&gpio4 20 GPIO_ACTIVE_LOW>;
+ sd-uhs-sdr50;
+ status = "okay";
+};
--
2.7.4
