Add sdhci dt node in SoC dtsi and enable it in milkv duo dts.
Signed-off-by: Jisheng Zhang <jszhang@xxxxxxxxxx>
---
Since cv1800b's clk support isn't in, this patch uses fixed dummy clk
and just RFC, I will send formal patch after clk support is ready.
.../riscv/boot/dts/sophgo/cv1800b-milkv-duo.dts | 8 ++++++++
arch/riscv/boot/dts/sophgo/cv18xx.dtsi | 17 +++++++++++++++++
2 files changed, 25 insertions(+)
diff --git a/arch/riscv/boot/dts/sophgo/cv1800b-milkv-duo.dts b/arch/riscv/boot/dts/sophgo/cv1800b-milkv-duo.dts
index 3af9e34b3bc7..94e64ddce8fa 100644
--- a/arch/riscv/boot/dts/sophgo/cv1800b-milkv-duo.dts
+++ b/arch/riscv/boot/dts/sophgo/cv1800b-milkv-duo.dts
@@ -33,6 +33,14 @@ &osc {
clock-frequency = <25000000>;
};
+&sdhci0 {
+ status = "okay";
+ bus-width = <4>;
+ no-1-8-v;
+ no-mmc;
+ no-sdio;
+};
+
&uart0 {
status = "okay";
};
diff --git a/arch/riscv/boot/dts/sophgo/cv18xx.dtsi b/arch/riscv/boot/dts/sophgo/cv18xx.dtsi
index 2d6f4a4b1e58..405f4ba18392 100644
--- a/arch/riscv/boot/dts/sophgo/cv18xx.dtsi
+++ b/arch/riscv/boot/dts/sophgo/cv18xx.dtsi
@@ -4,6 +4,7 @@
* Copyright (C) 2023 Inochi Amaoto <inochiama@xxxxxxxxxxx>
*/
+#include <dt-bindings/gpio/gpio.h>
#include <dt-bindings/interrupt-controller/irq.h>
/ {
@@ -45,6 +46,13 @@ osc: oscillator {
#clock-cells = <0>;
};
+ sdhci_clk: sdhci-clock {
+ compatible = "fixed-clock";
+ clock-frequency = <375000000>;
+ clock-output-names = "sdhci_clk";
+ #clock-cells = <0>;
+ };
+
soc {
compatible = "simple-bus";
interrupt-parent = <&plic>;
@@ -175,6 +183,15 @@ uart4: serial@41c0000 {
status = "disabled";
};
+ sdhci0: mmc@4310000 {
+ compatible = "sophgo,cv1800b-dwcmshc";
+ reg = <0x4310000 0x1000>;
+ interrupts = <36 IRQ_TYPE_LEVEL_HIGH>;
+ clocks = <&sdhci_clk>;
+ clock-names = "core";
+ status = "disabled";
+ };
+
plic: interrupt-controller@70000000 {
reg = <0x70000000 0x4000000>;
interrupts-extended = <&cpu0_intc 11>, <&cpu0_intc 9>;
--
2.43.0
