board: rockchip: Add Pine64 SOQuartz on CM4-IO

The Pine64 SOQuartz compute module is mostly pin-compatible with the RPi
CM4 form factor. Therefore, it can slot into the official Raspberry Pi
CM4 IO carrier board. Add this configuration to U-Boot.

Features tested with a SOQuartz 4GB v1.1 2022-07-11:
- SD-card boot
- eMMC boot
- USB host

Device tree is imported from linux v6.4.

Co-developed-by: Nicolas Frattaroli <frattaroli.nicolas@gmail.com>
Signed-off-by: Nicolas Frattaroli <frattaroli.nicolas@gmail.com>
Signed-off-by: Jonas Karlman <jonas@kwiboo.se>
Reviewed-by: Kever Yang <kever.yang@rock-chips.com>

3 files changed, 196 insertions, 0 deletions

diff --git a/arch/arm/dts/Makefile b/arch/arm/dts/Makefile
index 916de092c55..bb4d63577e8 100644
--- a/arch/arm/dts/Makefile
+++ b/arch/arm/dts/Makefile
@@ -175,6 +175,7 @@ dtb-$(CONFIG_ROCKCHIP_RK3568) += \
 	rk3566-quartz64-b.dtb \
 	rk3566-radxa-cm3-io.dtb \
 	rk3566-soquartz-blade.dtb \
+	rk3566-soquartz-cm4.dtb \
 	rk3566-soquartz-model-a.dtb \
 	rk3568-evb.dtb \
 	rk3568-nanopi-r5c.dtb \
diff --git a/arch/arm/dts/rk3566-soquartz-cm4-u-boot.dtsi b/arch/arm/dts/rk3566-soquartz-cm4-u-boot.dtsi
new file mode 100644
index 00000000000..0e662eafa4c
--- /dev/null
+++ b/arch/arm/dts/rk3566-soquartz-cm4-u-boot.dtsi
@@ -0,0 +1,3 @@
+// SPDX-License-Identifier: GPL-2.0+
+
+#include "rk3566-soquartz-u-boot.dtsi"
diff --git a/arch/arm/dts/rk3566-soquartz-cm4.dts b/arch/arm/dts/rk3566-soquartz-cm4.dts
new file mode 100644
index 00000000000..cddf6cd2fec
--- /dev/null
+++ b/arch/arm/dts/rk3566-soquartz-cm4.dts
@@ -0,0 +1,192 @@
+// SPDX-License-Identifier: (GPL-2.0+ OR MIT)
+
+/dts-v1/;
+
+#include "rk3566-soquartz.dtsi"
+
+/ {
+	model = "Pine64 RK3566 SoQuartz with CM4-IO Carrier Board";
+	compatible = "pine64,soquartz-cm4io", "pine64,soquartz", "rockchip,rk3566";
+
+	/* labeled +12v in schematic */
+	vcc12v_dcin: vcc12v-dcin-regulator {
+		compatible = "regulator-fixed";
+		regulator-name = "vcc12v_dcin";
+		regulator-always-on;
+		regulator-boot-on;
+		regulator-min-microvolt = <12000000>;
+		regulator-max-microvolt = <12000000>;
+	};
+
+	/* labeled +5v in schematic */
+	vcc_5v: vcc-5v-regulator {
+		compatible = "regulator-fixed";
+		regulator-name = "vcc_5v";
+		regulator-always-on;
+		regulator-boot-on;
+		regulator-min-microvolt = <5000000>;
+		regulator-max-microvolt = <5000000>;
+		vin-supply = <&vcc12v_dcin>;
+	};
+
+	vcc_sd_pwr: vcc-sd-pwr-regulator {
+		compatible = "regulator-fixed";
+		regulator-name = "vcc_sd_pwr";
+		regulator-always-on;
+		regulator-boot-on;
+		regulator-min-microvolt = <3300000>;
+		regulator-max-microvolt = <3300000>;
+		vin-supply = <&vcc3v3_sys>;
+	};
+};
+
+/* phy for pcie */
+&combphy2 {
+	phy-supply = <&vcc3v3_sys>;
+	status = "okay";
+};
+
+&gmac1 {
+	status = "okay";
+};
+
+/*
+ * i2c1 is exposed on CM1 / Module1A
+ * pin 80 - SCL0 - i2c1_scl_m0, pullup to vcc3v3_pmu
+ * pin 82 - SDA0 - i2c1_sda_m0, pullup to vcc3v3_pmu
+ */
+&i2c1 {
+	status = "okay";
+
+	/*
+	 * the rtc interrupt is tied to PMIC_PWRON,
+	 * it will force reset the board if triggered.
+	 */
+	pcf85063: rtc@51 {
+		compatible = "nxp,pcf85063";
+		reg = <0x51>;
+	};
+};
+
+/*
+ * i2c2 is exposed on CM1 / Module1A - to PI40
+ * pin 56 - GPIO3 - i2c2_scl_m1, pullup to vcc_3v3, shared with i2s1_8ch
+ * pin 58 - GPIO2 - i2c2_sda_m1, pullup to vcc_3v3
+ */
+&i2c2 {
+	status = "disabled";
+};
+
+/*
+ * i2c3 is exposed on CM1 / Module1A - to PI40
+ * pin 35 - ID_SC(GPIO28) - i2c3_scl_m0, pullup to vcc_3v3
+ * pin 36 - ID_SD(GPIO27) - i2c3_sda_m0, pullup to vcc_3v3
+ */
+&i2c3 {
+	status = "disabled";
+};
+
+/*
+ * i2c4 is exposed on CM2 / Module1B - to PI40
+ * pin 45 - GPIO24 - i2c4_scl_m1
+ * pin 47 - GPIO23 - i2c4_sda_m1
+ */
+&i2c4 {
+	status = "disabled";
+};
+
+/*
+ * i2s1_8ch is exposed on CM1 / Module1A - to PI40
+ * pin 24 - GPIO26 - i2s1_sdi1_m1
+ * pin 25 - GPIO21 - i2s1_sdo0_m1
+ * pin 26 - GPIO19 - i2s1_lrck_tx_m1
+ * pin 27 - GPIO20 - i2s1_sdi0_m1
+ * pin 29 - GPIO16 - i2s1_sdi3_m1
+ * pin 30 - GPIO6  - i2s1_sdi2_m1
+ * pin 40 - GPIO9  - i2s1_sdo1_m1, shared with spi3
+ * pin 41 - GPIO25 - i2s1_sdo2_m1
+ * pin 49 - GPIO18 - i2s1_sclk_tx_m1
+ * pin 50 - GPIO17 - i2s1_mclk_m1
+ * pin 56 - GPIO3  - i2s1_sdo3_m1, shared with i2c2
+ */
+&i2s1_8ch {
+	status = "disabled";
+};
+
+&led_diy {
+	status = "okay";
+};
+
+&led_work {
+	status = "okay";
+};
+
+&pcie2x1 {
+	vpcie3v3-supply = <&vcc_3v3>;
+	status = "okay";
+};
+
+&rgmii_phy1 {
+	status = "okay";
+};
+
+/*
+ * saradc is exposed on CM1 / Module1A - to J2
+ * pin 94 - AIN1 - saradc_vin3
+ * pin 96 - AIN0 - saradc_vin2
+ */
+&saradc {
+	status = "disabled";
+};
+
+&sdmmc0 {
+	vmmc-supply = <&vcc_sd_pwr>;
+	status = "okay";
+};
+
+/*
+ *  spi3 is exposed on CM1 / Module1A - to PI40
+ * pin 37 - GPIO7  - spi3_cs1_m0
+ * pin 38 - GPIO11 - spi3_clk_m0
+ * pin 39 - GPIO8  - spi3_cs0_m0
+ * pin 40 - GPIO9  - spi3_miso_m0, shared with i2s1_8ch
+ * pin 44 - GPIO10 - spi3_mosi_m0
+ */
+&spi3 {
+	status = "disabled";
+};
+
+/*
+ * uart2 is exposed on CM1 / Module1A - to PI40
+ * pin 51 - GPIO15 - uart2_rx_m0
+ * pin 55 - GPIO14 - uart2_tx_m0
+ */
+&uart2 {
+	status = "okay";
+};
+
+/*
+ * uart7 is exposed on CM1 / Module1A - to PI40
+ * pin 46 - GPIO22 - uart7_tx_m2
+ * pin 47 - GPIO23 - uart7_rx_m2
+ */
+&uart7 {
+	status = "okay";
+};
+
+&usb2phy0 {
+	status = "okay";
+};
+
+&usb2phy0_otg {
+	phy-supply = <&vcc_5v>;
+	status = "okay";
+};
+
+&usb_host0_xhci {
+	status = "okay";
+};
+
+&vbus {
+	vin-supply = <&vcc_5v>;
+};