From: Dang Huynh <dang.hu...@mainlining.org>
Since we have a SDMMC controller, we can use the SD card slot on the
Orange Pi 2G-IOT.
Signed-off-by: Dang Huynh <dang.hu...@mainlining.org>
---
.../boot/dts/unisoc/rda8810pl-orangepi-2g-iot.dts | 20 ++++++++++++++++++++
1 file changed, 20 insertions(+)
diff --git a/arch/arm/boot/dts/unisoc/rda8810pl-orangepi-2g-iot.dts
b/arch/arm/boot/dts/unisoc/rda8810pl-orangepi-2g-iot.dts
index
46ccb9ad510c0df142b845d6fc5633b69c2298dd..f6b1a1485645f5714cdf14447cbee50e28e3c076
100644
--- a/arch/arm/boot/dts/unisoc/rda8810pl-orangepi-2g-iot.dts
+++ b/arch/arm/boot/dts/unisoc/rda8810pl-orangepi-2g-iot.dts
@@ -6,6 +6,7 @@
/dts-v1/;
+#include <dt-bindings/gpio/gpio.h>
#include "rda8810pl.dtsi"
/ {
@@ -27,6 +28,13 @@ memory@80000000 {
reg = <0x80000000 0x10000000>;
};
+ vdd_sdmmc: regulator-fixed {
+ compatible = "regulator-fixed";
+ regulator-name = "vdd_sdmmc";
+ regulator-min-microvolt = <2800000>;
+ regulator-max-microvolt = <2800000>;
+ };
+
uart_clk: uart-clk {
compatible = "fixed-clock";
clock-frequency = <921600>;
@@ -34,6 +42,18 @@ uart_clk: uart-clk {
};
};
+&mmc1 {
+ status = "okay";
+ no-sdio;
+ no-mmc;
+ bus-width = <4>;
+ max-frequency = <30000000>;
+ cd-gpios = <&gpiob 4 GPIO_ACTIVE_LOW>;
+ vmmc-supply = <&vdd_sdmmc>;
+ rda,mclk-adj = /bits/ 8 <1>;
+ rda,mclk-inv;
+};
+
&uart3 {
status = "okay";
clocks = <&uart_clk>;
--
2.51.0
