sd_emmc_b is routed to the SD-card. Unlike p20x there is no GPIO
regulator, meaning it only supports 3.3V (which seems to be hard-wired).
Signed-off-by: Martin Blumenstingl <martin.blumenstingl@xxxxxxxxxxxxxx>
Tested-by: Andreas Färber <afaerber@xxxxxxx>
---
.../boot/dts/amlogic/meson-gxbb-vega-s95.dtsi | 26 ++++++++++++++++++++++
1 file changed, 26 insertions(+)
diff --git a/arch/arm64/boot/dts/amlogic/meson-gxbb-vega-s95.dtsi b/arch/arm64/boot/dts/amlogic/meson-gxbb-vega-s95.dtsi
index 54bb7c7..4572ce2 100644
--- a/arch/arm64/boot/dts/amlogic/meson-gxbb-vega-s95.dtsi
+++ b/arch/arm64/boot/dts/amlogic/meson-gxbb-vega-s95.dtsi
@@ -52,6 +52,16 @@
chosen {
stdout-path = "serial0:115200n8";
};
+
+ vcc_3v3: regulator@0 {
+ compatible = "regulator-fixed";
+
+ regulator-name = "VCC3V3";
+ regulator-min-microvolt = <3300000>;
+ regulator-max-microvolt = <3300000>;
+
+ regulator-always-on;
+ };
};
&uart_AO {
@@ -60,3 +70,19 @@
pinctrl-names = "default";
};
+
+&sd_emmc_b {
+ status = "okay";
+ pinctrl-0 = <&sdcard_pins>;
+ pinctrl-names = "default";
+
+ bus-width = <4>;
+ cap-sd-highspeed;
+ max-frequency = <100000000>;
+
+ cd-gpios = <&gpio CARD_6 GPIO_ACTIVE_HIGH>;
+ cd-inverted;
+
+ vmmc-supply = <&vcc_3v3>;
+ voltage-ranges = <3300 3300>;
+};
--
2.9.3
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