@@ -1,4 +1,5 @@
# SPDX-License-Identifier: GPL-2.0
+subdir-y += allwinner
subdir-y += sifive
subdir-y += starfive
subdir-$(CONFIG_SOC_CANAAN_K210_DTB_BUILTIN) += canaan
new file mode 100644
@@ -0,0 +1,2 @@
+# SPDX-License-Identifier: GPL-2.0
+dtb-$(CONFIG_ARCH_SUNXI) += sun20i-d1s-mangopi-mq.dtb
new file mode 100644
@@ -0,0 +1,35 @@
+// SPDX-License-Identifier: (GPL-2.0+ or MIT)
+// Copyright (C) 2021-2022 Samuel Holland <samuel@sholland.org>
+
+/ {
+ reg_vcc: vcc {
+ compatible = "regulator-fixed";
+ regulator-name = "vcc";
+ regulator-min-microvolt = <5000000>;
+ regulator-max-microvolt = <5000000>;
+ };
+
+ reg_vcc_3v3: vcc-3v3 {
+ compatible = "regulator-fixed";
+ regulator-name = "vcc-3v3";
+ regulator-min-microvolt = <3300000>;
+ regulator-max-microvolt = <3300000>;
+ vin-supply = <®_vcc>;
+ };
+};
+
+&pio {
+ vcc-pb-supply = <®_vcc_3v3>;
+ vcc-pc-supply = <®_vcc_3v3>;
+ vcc-pd-supply = <®_vcc_3v3>;
+ vcc-pe-supply = <®_vcc_3v3>;
+ vcc-pf-supply = <®_vcc_3v3>;
+ vcc-pg-supply = <®_vcc_3v3>;
+};
+
+®_ldoa {
+ regulator-always-on;
+ regulator-min-microvolt = <1800000>;
+ regulator-max-microvolt = <1800000>;
+ ldo-in-supply = <®_vcc_3v3>;
+};
new file mode 100644
@@ -0,0 +1,135 @@
+// SPDX-License-Identifier: (GPL-2.0+ or MIT)
+// Copyright (C) 2022 Samuel Holland <samuel@sholland.org>
+
+#include <dt-bindings/gpio/gpio.h>
+#include <dt-bindings/leds/common.h>
+
+/dts-v1/;
+
+#include "sun20i-d1s.dtsi"
+#include "sun20i-common-regulators.dtsi"
+
+/ {
+ model = "MangoPi MQ";
+ compatible = "widora,mangopi-mq", "allwinner,sun20i-d1s";
+
+ aliases {
+ ethernet0 = &rtl8189ftv;
+ mmc0 = &mmc0;
+ serial3 = &uart3;
+ };
+
+ chosen {
+ stdout-path = "serial3:115200n8";
+ };
+
+ leds {
+ compatible = "gpio-leds";
+
+ led-0 {
+ color = <LED_COLOR_ID_BLUE>;
+ function = LED_FUNCTION_BACKLIGHT;
+ gpios = <&pio 3 22 GPIO_ACTIVE_LOW>; /* PD22 */
+ };
+ };
+
+ reg_avdd2v8: avdd2v8 {
+ compatible = "regulator-fixed";
+ regulator-name = "avdd2v8";
+ regulator-min-microvolt = <2800000>;
+ regulator-max-microvolt = <2800000>;
+ vin-supply = <®_vcc_3v3>;
+ };
+
+ reg_dvdd: dvdd {
+ compatible = "regulator-fixed";
+ regulator-name = "dvdd";
+ regulator-min-microvolt = <1200000>;
+ regulator-max-microvolt = <1200000>;
+ vin-supply = <®_vcc_3v3>;
+ };
+
+ reg_vcc_core: vcc-core {
+ compatible = "regulator-fixed";
+ regulator-name = "vcc-core";
+ regulator-min-microvolt = <900000>;
+ regulator-max-microvolt = <900000>;
+ vin-supply = <®_vcc>;
+ };
+
+ wifi_pwrseq: wifi-pwrseq {
+ compatible = "mmc-pwrseq-simple";
+ reset-gpios = <&pio 6 12 GPIO_ACTIVE_LOW>; /* PG12 */
+ };
+};
+
+&cpu0 {
+ cpu-supply = <®_vcc_core>;
+};
+
+&dcxo {
+ clock-frequency = <24000000>;
+};
+
+&ehci1 {
+ status = "okay";
+};
+
+&mmc0 {
+ bus-width = <4>;
+ cd-gpios = <&pio 5 6 GPIO_ACTIVE_LOW>; /* PF6 */
+ disable-wp;
+ vmmc-supply = <®_vcc_3v3>;
+ vqmmc-supply = <®_vcc_3v3>;
+ pinctrl-0 = <&mmc0_pins>;
+ pinctrl-names = "default";
+ status = "okay";
+};
+
+&mmc1 {
+ bus-width = <4>;
+ mmc-pwrseq = <&wifi_pwrseq>;
+ non-removable;
+ vmmc-supply = <®_vcc_3v3>;
+ vqmmc-supply = <®_vcc_3v3>;
+ pinctrl-0 = <&mmc1_pins>;
+ pinctrl-names = "default";
+ status = "okay";
+
+ rtl8189ftv: wifi@1 {
+ reg = <1>;
+ interrupt-parent = <&pio>;
+ interrupts = <6 10 IRQ_TYPE_LEVEL_LOW>; /* PG10 */
+ interrupt-names = "host-wake";
+ };
+};
+
+&ohci1 {
+ status = "okay";
+};
+
+&pio {
+ vcc-pe-supply = <®_avdd2v8>;
+};
+
+®_ldob {
+ regulator-name = "vcc-dram";
+ regulator-always-on;
+ ldo-in-supply = <®_vcc_3v3>;
+};
+
+&uart3 {
+ pinctrl-0 = <&uart3_pb_pins>;
+ pinctrl-names = "default";
+ status = "okay";
+};
+
+&usb_otg {
+ dr_mode = "peripheral";
+ status = "okay";
+};
+
+&usbphy {
+ usb1_vbus-supply = <®_vcc>;
+ status = "okay";
+};
The MangoPi MQ is a tiny SBC built around the Allwinner D1s. Its onboard peripherals include two USB Type-C ports (1 device, 1 host) and RTL8189FTV WLAN. A MangoPi MQ-R variant of the board also exists. The MQ-R has a different form factor, but the onboard peripherals are the same. Most D1 and D1s boards use a similar power tree, with the 1.8V rail powered by the SoC's internal LDOA, analog domains powered by ALDO, and the rest of the board powered by always-on fixed regulators. To avoid duplication, factor out the regulator information that is common across boards. The board also exposes GPIO Port E via a FPC connector, which can support either a camera or an RMII Ethernet PHY. The additional regulators supply that connector. Signed-off-by: Samuel Holland <samuel@sholland.org> --- Changes in v2: - New patch for v2 arch/riscv/boot/dts/Makefile | 1 + arch/riscv/boot/dts/allwinner/Makefile | 2 + .../allwinner/sun20i-common-regulators.dtsi | 35 +++++ .../dts/allwinner/sun20i-d1s-mangopi-mq.dts | 135 ++++++++++++++++++ 4 files changed, 173 insertions(+) create mode 100644 arch/riscv/boot/dts/allwinner/Makefile create mode 100644 arch/riscv/boot/dts/allwinner/sun20i-common-regulators.dtsi create mode 100644 arch/riscv/boot/dts/allwinner/sun20i-d1s-mangopi-mq.dts