[PATCH v3] arm64: dts: rockchip: Add support for RADXA SDIO Wifi/BT M.2 ekey module for rock 3a

[Shengyu Qu]

Tested with RADXA A6 module, which uses AP6275S (BCM43752A2)

Changes in v2:
- Fix SDMMC2 vmmc/vqmmc supply configuration

Changes in v3:
- Fix UART1 vbat/vddio supply configuration

Signed-off-by: Shengyu Qu <wiagn233 at outlook.com>
---
 .../boot/dts/rockchip/rk3568-rock-3a.dts      | 80 +++++++++++++++++++
 arch/arm64/boot/dts/rockchip/rk356x.dtsi      | 22 +++++
 2 files changed, 102 insertions(+)

diff --git a/arch/arm64/boot/dts/rockchip/rk3568-rock-3a.dts b/arch/arm64/boot/dts/rockchip/rk3568-rock-3a.dts
index 6b5093a1a6cf..37676e8a258c 100644
--- a/arch/arm64/boot/dts/rockchip/rk3568-rock-3a.dts
+++ b/arch/arm64/boot/dts/rockchip/rk3568-rock-3a.dts
@@ -60,6 +60,23 @@ simple-audio-card,codec {
 		};
 	};
 
+	sdio_pwrseq: sdio-pwrseq {
+		compatible = "mmc-pwrseq-simple";
+		clocks = <&rk809 1>;
+		clock-names = "ext_clock";
+		pinctrl-names = "default";
+		pinctrl-0 = <&wifi_enable>;
+		post-power-on-delay-ms = <100>;
+		power-off-delay-us = <5000000>;
+
+		/* On the module itself this is one of these (depending on the actual
+		 * card populated):
+		 * - SDIO_RESET_L_WL_REG_ON
+		 * - PDN (power down when low)
+		 */
+		reset-gpios = <&gpio3 RK_PD4 GPIO_ACTIVE_LOW>;
+	};
+
 	vcc12v_dcin: vcc12v-dcin {
 		compatible = "regulator-fixed";
 		regulator-name = "vcc12v_dcin";
@@ -449,6 +466,11 @@ &i2s1_8ch {
 	status = "okay";
 };
 
+&i2s2_2ch {
+	rockchip,trcm-sync-tx-only;
+	status = "okay";
+};
+
 &mdio1 {
 	rgmii_phy1: ethernet-phy at 0 {
 		compatible = "ethernet-phy-ieee802.3-c22";
@@ -492,6 +514,26 @@ vcc5v0_usb_otg_en: vcc5v0_usb_otg_en {
 			rockchip,pins = <0 RK_PA5 RK_FUNC_GPIO &pcfg_pull_none>;
 		};
 	};
+
+	bt {
+		bt_enable: bt_enable {
+			rockchip,pins = <4 RK_PB2 RK_FUNC_GPIO &pcfg_pull_none>;
+		};
+
+		bt_host_wake: bt_host_wake {
+			rockchip,pins = <4 RK_PB4 RK_FUNC_GPIO &pcfg_pull_down>;
+		};
+
+		bt_wake: bt_wake {
+			rockchip,pins = <4 RK_PB5 RK_FUNC_GPIO &pcfg_pull_none>;
+		};
+	};
+
+	sdio-pwrseq {
+		wifi_enable: wifi_enable {
+			rockchip,pins = <3 RK_PD4 RK_FUNC_GPIO &pcfg_pull_none>;
+		};
+	};
 };
 
 &pmu_io_domains {
@@ -536,12 +578,50 @@ &sdmmc0 {
 	status = "okay";
 };
 
+&sdmmc2 {
+	supports-sdio;
+	bus-width = <4>;
+	disable-wp;
+	cap-sd-highspeed;
+	cap-sdio-irq;
+	keep-power-in-suspend;
+	mmc-pwrseq = <&sdio_pwrseq>;
+	non-removable;
+	pinctrl-names = "default";
+	pinctrl-0 = <&sdmmc2m0_bus4 &sdmmc2m0_cmd &sdmmc2m0_clk>;
+	sd-uhs-sdr104;
+	vmmc-supply = <&vcc3v3_sys>;
+	vqmmc-supply = <&vcc_1v8>;
+	status = "okay";
+};
+
 &tsadc {
 	rockchip,hw-tshut-mode = <1>;
 	rockchip,hw-tshut-polarity = <0>;
 	status = "okay";
 };
 
+&uart1 {
+	pinctrl-names = "default";
+	pinctrl-0 = <&uart1m0_xfer &uart1m0_ctsn &uart1m0_rtsn>;
+	uart-has-rtscts;
+	status = "okay";
+
+	bluetooth {
+		compatible = "brcm,bcm43438-bt";
+		clocks = <&rk809 1>;
+		clock-names = "lpo";
+		device-wakeup-gpios = <&gpio4 RK_PB5 GPIO_ACTIVE_HIGH>;
+		host-wakeup-gpios = <&gpio4 RK_PB4 GPIO_ACTIVE_HIGH>;
+		shutdown-gpios = <&gpio4 RK_PB2 GPIO_ACTIVE_HIGH>;
+		pinctrl-names = "default";
+		pinctrl-0 = <&bt_host_wake &bt_wake &bt_enable>;
+		vbat-supply = <&vcc3v3_sys>;
+		vddio-supply = <&vcc_1v8>;
+		/* vddio comes from regulator inside module, use IO voltage instead */
+	};
+};
+
 &uart2 {
 	status = "okay";
 };
diff --git a/arch/arm64/boot/dts/rockchip/rk356x.dtsi b/arch/arm64/boot/dts/rockchip/rk356x.dtsi
index 319981c3e9f7..73df56107db4 100644
--- a/arch/arm64/boot/dts/rockchip/rk356x.dtsi
+++ b/arch/arm64/boot/dts/rockchip/rk356x.dtsi
@@ -1009,6 +1009,28 @@ &i2s1m0_sdo0   &i2s1m0_sdo1
 		status = "disabled";
 	};
 
+	i2s2_2ch: i2s at fe420000 {
+		compatible = "rockchip,rk3568-i2s-tdm";
+		reg = <0x0 0xfe420000 0x0 0x1000>;
+		interrupts = <GIC_SPI 54 IRQ_TYPE_LEVEL_HIGH>;
+		assigned-clocks = <&cru CLK_I2S2_2CH_SRC>;
+		assigned-clock-rates = <1188000000>;
+		clocks = <&cru MCLK_I2S2_2CH>, <&cru MCLK_I2S2_2CH>, <&cru HCLK_I2S2_2CH>;
+		clock-names = "mclk_tx", "mclk_rx", "hclk";
+		dmas = <&dmac1 4>, <&dmac1 5>;
+		dma-names = "tx", "rx";
+		resets = <&cru SRST_M_I2S2_2CH>;
+		reset-names = "m";
+		rockchip,grf = <&grf>;
+		pinctrl-names = "default";
+		pinctrl-0 = <&i2s2m0_sclktx
+				&i2s2m0_lrcktx
+				&i2s2m0_sdi
+				&i2s2m0_sdo>;
+		#sound-dai-cells = <0>;
+		status = "disabled";
+	};
+
 	i2s3_2ch: i2s at fe430000 {
 		compatible = "rockchip,rk3568-i2s-tdm";
 		reg = <0x0 0xfe430000 0x0 0x1000>;
-- 
2.25.1