[PATCH v5 1/2] riscv: dts: sophgo: cv1800b: add pinctrl support

Inochi Amaoto
2024-08-30T22:40:48Z

Add pinctrl node and related pin configuration for CV1800B SoC.

Signed-off-by: Inochi Amaoto <inochiama@outlook.com>
---
.../boot/dts/sophgo/cv1800b-milkv-duo.dts | 49 +++++++++++++++++++
arch/riscv/boot/dts/sophgo/cv1800b.dtsi | 10 ++++
2 files changed, 59 insertions(+)

diff --git a/arch/riscv/boot/dts/sophgo/cv1800b-milkv-duo.dts b/arch/riscv/boot/dts/sophgo/cv1800b-milkv-duo.dts
index 375ff2661b6e..9feb520eaec4 100644
--- a/arch/riscv/boot/dts/sophgo/cv1800b-milkv-duo.dts
+++ b/arch/riscv/boot/dts/sophgo/cv1800b-milkv-duo.dts
@@ -39,7 +39,54 @@ &osc {
clock-frequency = <25000000>;
};

+&pinctrl {
+ uart0_cfg: uart0-cfg {
+ uart0-pins {
+ pinmux = <PINMUX(PIN_UART0_TX, 0)>,
+ <PINMUX(PIN_UART0_RX, 0)>;
+ bias-pull-up;
+ drive-strength-microamp = <10800>;
+ power-source = <3300>;
+ };
+ };
+
+ sdhci0_cfg: sdhci0-cfg {
+ sdhci0-clk-pins {
+ pinmux = <PINMUX(PIN_SD0_CLK, 0)>;
+ bias-pull-up;
+ drive-strength-microamp = <16100>;
+ power-source = <3300>;
+ };
+
+ sdhci0-cmd-pins {
+ pinmux = <PINMUX(PIN_SD0_CMD, 0)>;
+ bias-pull-up;
+ drive-strength-microamp = <10800>;
+ power-source = <3300>;
+ };
+
+ sdhci0-data-pins {
+ pinmux = <PINMUX(PIN_SD0_D0, 0)>,
+ <PINMUX(PIN_SD0_D1, 0)>,
+ <PINMUX(PIN_SD0_D2, 0)>,
+ <PINMUX(PIN_SD0_D3, 0)>;
+ bias-pull-up;
+ drive-strength-microamp = <10800>;
+ power-source = <3300>;
+ };
+
+ sdhci0-cd-pins {
+ pinmux = <PINMUX(PIN_SD0_CD, 0)>;
+ bias-pull-up;
+ drive-strength-microamp = <10800>;
+ power-source = <3300>;
+ };
+ };
+};
+
&sdhci0 {
+ pinctrl-0 = <&sdhci0_cfg>;
+ pinctrl-names = "default";
status = "okay";
bus-width = <4>;
no-1-8-v;
@@ -49,5 +96,7 @@ &sdhci0 {
};

&uart0 {
+ pinctrl-0 = <&uart0_cfg>;
+ pinctrl-names = "default";
status = "okay";
};
diff --git a/arch/riscv/boot/dts/sophgo/cv1800b.dtsi b/arch/riscv/boot/dts/sophgo/cv1800b.dtsi
index ec9530972ae2..6a958b822097 100644
--- a/arch/riscv/boot/dts/sophgo/cv1800b.dtsi
+++ b/arch/riscv/boot/dts/sophgo/cv1800b.dtsi
@@ -3,6 +3,7 @@
* Copyright (C) 2023 Jisheng Zhang <jszhang@kernel.org>
*/

+#include <dt-bindings/pinctrl/pinctrl-cv1800b.h>
#include "cv18xx.dtsi"

/ {
@@ -12,6 +13,15 @@ memory@80000000 {
device_type = "memory";
reg = <0x80000000 0x4000000>;
};
+
+ soc {
+ pinctrl: pinctrl@3008000 {
+ compatible = "sophgo,cv1800b-pinctrl";
+ reg = <0x03001000 0x1000>,
+ <0x05027000 0x1000>;
+ reg-names = "sys", "rtc";
+ };
+ };
};

&plic {
--
2.46.0