[PATCH] arm64: dts: rockchip: Add rock pi s dts support

From: Akash Gajjar
Date: Thu Nov 04 2021 - 03:53:45 EST

Rock pi s is RK3308 SBC from radxa. Rock pi s has a,
- 256MB/512MB DDR3 RAM
- micro sd, sd nand flash (optional on board 1/2/4/8Gb)
- 100MB ethernet, PoE (optional)
- onboard RTL8723DS 802.11 b/g/n wifi + Bluetooth 4.0 Module
- 26-pin expansion header
- USB2.0 Type-A HOST x1
- USB Type-C DC 5V Power Supply
- 2 LEDS, 2 Keys

This patch enables
- console on UART-2
- nand flash
- sd card
- 100Mbps ethernet
- USB2.0

Signed-off-by: Akash Gajjar <gajjar04akash@xxxxxxxxx>
---
.../devicetree/bindings/arm/rockchip.yaml | 5 +
arch/arm64/boot/dts/rockchip/Makefile | 1 +
.../boot/dts/rockchip/rk3308-rock-pi-s.dts | 208 ++++++++++++++++++
3 files changed, 214 insertions(+)
create mode 100644 arch/arm64/boot/dts/rockchip/rk3308-rock-pi-s.dts

diff --git a/Documentation/devicetree/bindings/arm/rockchip.yaml b/Documentation/devicetree/bindings/arm/rockchip.yaml
index 4aed16176434..69072db24cd6 100644
--- a/Documentation/devicetree/bindings/arm/rockchip.yaml
+++ b/Documentation/devicetree/bindings/arm/rockchip.yaml
@@ -515,6 +515,11 @@ properties:
- const: radxa,rockpi4
- const: rockchip,rk3399

+ - description: Radxa ROCK Pi S
+ items:
+ - const: radxa,rockpis
+ - const: rockchip,rk3308
+
- description: Radxa ROCK Pi E
items:
- const: radxa,rockpi-e
diff --git a/arch/arm64/boot/dts/rockchip/Makefile b/arch/arm64/boot/dts/rockchip/Makefile
index 479906f3ad7b..c852bfb35387 100644
--- a/arch/arm64/boot/dts/rockchip/Makefile
+++ b/arch/arm64/boot/dts/rockchip/Makefile
@@ -5,6 +5,7 @@ dtb-$(CONFIG_ARCH_ROCKCHIP) += px30-engicam-px30-core-ctouch2-of10.dtb
dtb-$(CONFIG_ARCH_ROCKCHIP) += px30-engicam-px30-core-edimm2.2.dtb
dtb-$(CONFIG_ARCH_ROCKCHIP) += rk3308-evb.dtb
dtb-$(CONFIG_ARCH_ROCKCHIP) += rk3308-roc-cc.dtb
+dtb-$(CONFIG_ARCH_ROCKCHIP) += rk3308-rock-pi-s.dtb
dtb-$(CONFIG_ARCH_ROCKCHIP) += rk3318-a95x-z2.dtb
dtb-$(CONFIG_ARCH_ROCKCHIP) += rk3326-odroid-go2.dtb
dtb-$(CONFIG_ARCH_ROCKCHIP) += rk3328-a1.dtb
diff --git a/arch/arm64/boot/dts/rockchip/rk3308-rock-pi-s.dts b/arch/arm64/boot/dts/rockchip/rk3308-rock-pi-s.dts
new file mode 100644
index 000000000000..0a8736de3fb3
--- /dev/null
+++ b/arch/arm64/boot/dts/rockchip/rk3308-rock-pi-s.dts
@@ -0,0 +1,208 @@
+// SPDX-License-Identifier: (GPL-2.0+ OR MIT)
+/*
+ * Copyright (c) 2019 Akash Gajjar <gajjar04akash@xxxxxxxxx>
+ */
+
+/dts-v1/;
+#include "rk3308.dtsi"
+
+/ {
+ model = "Radxa ROCK Pi S";
+ compatible = "radxa,rockpis", "rockchip,rk3308";
+
+ aliases {
+ ethernet0 = &gmac;
+ mmc0 = &sdmmc;
+ mmc1 = &emmc;
+ };
+
+ chosen {
+ stdout-path = "serial2:1500000n8";
+ };
+
+ leds {
+ compatible = "gpio-leds";
+ pinctrl-names = "default";
+ pinctrl-0 = <&green_led_gio>, <&heartbeat_led_gpio>;
+
+ green-led {
+ label = "rockpis:green:power";
+ gpios = <&gpio0 RK_PA6 GPIO_ACTIVE_HIGH>;
+ linux,default-trigger = "default-on";
+ default-state = "on";
+ };
+
+ blue-led {
+ label = "rockpis:blue:user";
+ gpios = <&gpio0 RK_PA5 GPIO_ACTIVE_HIGH>;
+ default-state = "on";
+ linux,default-trigger = "heartbeat";
+ };
+ };
+
+ vcc5v0_sys: vcc5v0-sys {
+ compatible = "regulator-fixed";
+ regulator-name = "vcc5v0_sys";
+ regulator-always-on;
+ regulator-boot-on;
+ regulator-min-microvolt = <5000000>;
+ regulator-max-microvolt = <5000000>;
+ };
+
+ vdd_core: vdd-core {
+ compatible = "pwm-regulator";
+ pwms = <&pwm0 0 5000 1>;
+ regulator-name = "vdd_core";
+ regulator-min-microvolt = <827000>;
+ regulator-max-microvolt = <1340000>;
+ regulator-init-microvolt = <1015000>;
+ regulator-settling-time-up-us = <250>;
+ regulator-always-on;
+ regulator-boot-on;
+ pwm-supply = <&vcc5v0_sys>;
+ };
+
+ vdd_log: vdd-log {
+ compatible = "regulator-fixed";
+ regulator-name = "vdd_log";
+ regulator-always-on;
+ regulator-boot-on;
+ regulator-min-microvolt = <1050000>;
+ regulator-max-microvolt = <1050000>;
+ vin-supply = <&vcc5v0_sys>;
+ };
+
+ vcc_ddr: vcc-ddr {
+ compatible = "regulator-fixed";
+ regulator-name = "vcc_ddr";
+ regulator-always-on;
+ regulator-boot-on;
+ regulator-min-microvolt = <1500000>;
+ regulator-max-microvolt = <1500000>;
+ vin-supply = <&vcc5v0_sys>;
+ };
+
+ vcc_1v8: vcc-1v8 {
+ compatible = "regulator-fixed";
+ regulator-name = "vcc_1v8";
+ regulator-always-on;
+ regulator-boot-on;
+ regulator-min-microvolt = <1800000>;
+ regulator-max-microvolt = <1800000>;
+ vin-supply = <&vcc_io>;
+ };
+
+ vcc_io: vcc-io {
+ compatible = "regulator-fixed";
+ regulator-name = "vcc_io";
+ regulator-always-on;
+ regulator-boot-on;
+ regulator-min-microvolt = <3300000>;
+ regulator-max-microvolt = <3300000>;
+ vin-supply = <&vcc5v0_sys>;
+ };
+
+ vcc5v0_otg: vcc5v0-otg {
+ compatible = "regulator-fixed";
+ regulator-name = "vcc5v0_otg";
+ regulator-always-on;
+ enable-active-high;
+ pinctrl-names = "default";
+ pinctrl-0 = <&otg_vbus_drv>;
+ gpio = <&gpio0 RK_PC5 GPIO_ACTIVE_HIGH>;
+ vin-supply = <&vcc5v0_sys>;
+ };
+};
+
+&cpu0 {
+ cpu-supply = <&vdd_core>;
+};
+
+&emmc {
+ cap-mmc-highspeed;
+ mmc-hs200-1_8v;
+ non-removable;
+ status = "okay";
+};
+
+&gmac {
+ phy-supply = <&vcc_io>;
+ clock_in_out = "input";
+ snps,reset-gpio = <&gpio0 RK_PA7 GPIO_ACTIVE_LOW>;
+ snps,reset-active-low;
+ snps,reset-delays-us = <0 10000 50000>;
+ tx_delay = <0x28>;
+ rx_delay = <0x11>;
+ status = "okay";
+};
+
+&i2c1 {
+ status = "okay";
+};
+
+&pinctrl {
+ pinctrl-names = "default";
+ pinctrl-0 = <&rtc_32k>;
+
+ leds {
+ green_led_gio: green-led-gpio {
+ rockchip,pins = <0 RK_PA6 RK_FUNC_GPIO &pcfg_pull_none>;
+ };
+
+ heartbeat_led_gpio: heartbeat-led-gpio {
+ rockchip,pins = <0 RK_PA5 RK_FUNC_GPIO &pcfg_pull_none>;
+ };
+ };
+
+ usb {
+ otg_vbus_drv: otg-vbus-drv {
+ rockchip,pins = <0 RK_PC5 RK_FUNC_GPIO &pcfg_pull_none>;
+ };
+ };
+};
+
+&pwm0 {
+ status = "okay";
+ pinctrl-0 = <&pwm0_pin_pull_down>;
+};
+
+&saradc {
+ vref-supply = <&vcc_1v8>;
+ status = "okay";
+};
+
+&sdmmc {
+ cap-mmc-highspeed;
+ cap-sd-highspeed;
+ card-detect-delay = <300>;
+ sd-uhs-sdr25;
+ sd-uhs-sdr50;
+ sd-uhs-sdr104;
+ status = "okay";
+};
+
+&uart2 {
+ status = "okay";
+};
+
+&uart4 {
+ pinctrl-names = "default";
+ pinctrl-0 = <&uart4_xfer &uart4_rts &uart4_cts>;
+ status = "okay";
+};
+
+&u2phy {
+ status = "okay";
+
+ u2phy_host: host-port {
+ status = "okay";
+ };
+};
+
+&usb_host_ehci {
+ status = "okay";
+};
+
+&usb_host_ohci {
+ status = "okay";
+};
--
2.25.1