riscv: dts: allwinner: Add ClockworkPi and DevTerm devicetrees

Clockwork Tech manufactures several SoMs for their RasPi CM3-compatible
"ClockworkPi" mainboard. Their R-01 SoM features the Allwinner D1 SoC.
The R-01 contains only the CPU, DRAM, and always-on voltage regulation;
it does not merit a separate devicetree.

The ClockworkPi mainboard features analog audio, a MIPI-DSI panel, USB
host and peripheral ports, an Ampak AP6256 WiFi/Bluetooth module, and an
X-Powers AXP228 PMIC for managing a Li-ion battery.

The DevTerm is a complete system which extends the ClockworkPi mainboard
with a MIPI-DSI panel and a pair of expansion boards. These expansion
boards provide a fan, a USB keyboard, speakers, and a thermal printer.

Acked-by: Palmer Dabbelt <palmer@rivosinc.com>
Signed-off-by: Samuel Holland <samuel@sholland.org>
Link: https://lore.kernel.org/r/20240622150731.1105901-4-wens@kernel.org
Signed-off-by: Chen-Yu Tsai <wens@csie.org>

diff --git a/arch/riscv/boot/dts/allwinner/Makefile b/arch/riscv/boot/dts/allwinner/Makefile
index 87f70b1af6b40ca85b0f741a51e8ca79d3f500e4..1c91be38ea16818d2cc3398c30a50b2d700a2330 100644 (file)
--- a/arch/riscv/boot/dts/allwinner/Makefile
+++ b/arch/riscv/boot/dts/allwinner/Makefile
@@ -1,4 +1,6 @@
 # SPDX-License-Identifier: GPL-2.0
+dtb-$(CONFIG_ARCH_SUNXI) += sun20i-d1-clockworkpi-v3.14.dtb
+dtb-$(CONFIG_ARCH_SUNXI) += sun20i-d1-devterm-v3.14.dtb
 dtb-$(CONFIG_ARCH_SUNXI) += sun20i-d1-dongshan-nezha-stu.dtb
 dtb-$(CONFIG_ARCH_SUNXI) += sun20i-d1-lichee-rv-86-panel-480p.dtb
 dtb-$(CONFIG_ARCH_SUNXI) += sun20i-d1-lichee-rv-86-panel-720p.dtb

diff --git a/arch/riscv/boot/dts/allwinner/sun20i-d1-clockworkpi-v3.14.dts b/arch/riscv/boot/dts/allwinner/sun20i-d1-clockworkpi-v3.14.dts
new file mode 100644 (file)
index 0000000..750aec6
--- /dev/null
+++ b/arch/riscv/boot/dts/allwinner/sun20i-d1-clockworkpi-v3.14.dts
@@ -0,0 +1,252 @@
+// SPDX-License-Identifier: (GPL-2.0+ or MIT)
+// Copyright (C) 2022 Samuel Holland <samuel@sholland.org>
+
+#include <dt-bindings/gpio/gpio.h>
+
+/dts-v1/;
+
+#include "sun20i-d1.dtsi"
+#include "sun20i-common-regulators.dtsi"
+
+/ {
+       model = "ClockworkPi v3.14 (R-01)";
+       compatible = "clockwork,r-01-clockworkpi-v3.14", "allwinner,sun20i-d1";
+
+       aliases {
+               ethernet0 = &ap6256;
+               serial0 = &uart0;
+       };
+
+       chosen {
+               stdout-path = "serial0:115200n8";
+       };
+
+       /*
+        * This regulator is PWM-controlled, but the PWM controller is not
+        * yet supported, so fix the regulator to its default voltage.
+        */
+       reg_vdd_cpu: vdd-cpu {
+               compatible = "regulator-fixed";
+               regulator-name = "vdd-cpu";
+               regulator-min-microvolt = <1100000>;
+               regulator-max-microvolt = <1100000>;
+               vin-supply = <&reg_vcc>;
+       };
+
+       wifi_pwrseq: wifi-pwrseq {
+               compatible = "mmc-pwrseq-simple";
+               reset-gpios = <&pio 6 11 GPIO_ACTIVE_LOW>; /* PG11/GPIO3 */
+       };
+};
+
+&cpu0 {
+       cpu-supply = <&reg_vdd_cpu>;
+};
+
+&dcxo {
+       clock-frequency = <24000000>;
+};
+
+&ehci1 {
+       status = "okay";
+};
+
+&i2c0 {
+       pinctrl-0 = <&i2c0_pb10_pins>;
+       pinctrl-names = "default";
+       status = "okay";
+
+       axp221: pmic@34 {
+               compatible = "x-powers,axp228", "x-powers,axp221";
+               reg = <0x34>;
+               interrupt-parent = <&pio>;
+               interrupts = <4 9 IRQ_TYPE_LEVEL_LOW>; /* PE9/GPIO2 */
+               interrupt-controller;
+               #interrupt-cells = <1>;
+
+               ac_power_supply: ac-power {
+                       compatible = "x-powers,axp221-ac-power-supply";
+               };
+
+               axp_adc: adc {
+                       compatible = "x-powers,axp221-adc";
+                       #io-channel-cells = <1>;
+               };
+
+               battery_power_supply: battery-power {
+                       compatible = "x-powers,axp221-battery-power-supply";
+               };
+
+               axp_gpio: gpio {
+                       compatible = "x-powers,axp221-gpio";
+                       gpio-controller;
+                       #gpio-cells = <2>;
+               };
+
+               regulators {
+                       x-powers,dcdc-freq = <3000>;
+
+                       reg_dcdc1: dcdc1 {
+                               regulator-name = "sys-3v3";
+                               regulator-always-on;
+                               regulator-min-microvolt = <3300000>;
+                               regulator-max-microvolt = <3300000>;
+                       };
+
+                       reg_dcdc3: dcdc3 {
+                               regulator-name = "sys-1v8";
+                               regulator-always-on;
+                               regulator-min-microvolt = <1800000>;
+                               regulator-max-microvolt = <1800000>;
+                       };
+
+                       reg_aldo1: aldo1 {
+                               regulator-name = "aud-3v3";
+                               regulator-min-microvolt = <3300000>;
+                               regulator-max-microvolt = <3300000>;
+                       };
+
+                       reg_aldo2: aldo2 {
+                               regulator-name = "disp-3v3";
+                               regulator-always-on;
+                               regulator-min-microvolt = <3300000>;
+                               regulator-max-microvolt = <3300000>;
+                       };
+
+                       reg_aldo3: aldo3 {
+                               regulator-name = "vdd-wifi";
+                               regulator-min-microvolt = <1800000>;
+                               regulator-max-microvolt = <1800000>;
+                       };
+
+                       /* DLDO1 and ELDO1-3 are connected in parallel. */
+                       reg_dldo1: dldo1 {
+                               regulator-name = "vbat-wifi-a";
+                               regulator-always-on;
+                               regulator-min-microvolt = <3300000>;
+                               regulator-max-microvolt = <3300000>;
+                       };
+
+                       /* DLDO2-DLDO4 are connected in parallel. */
+                       reg_dldo2: dldo2 {
+                               regulator-name = "vcc-3v3-ext-a";
+                               regulator-always-on;
+                               regulator-min-microvolt = <3300000>;
+                               regulator-max-microvolt = <3300000>;
+                       };
+
+                       reg_dldo3: dldo3 {
+                               regulator-name = "vcc-3v3-ext-b";
+                               regulator-always-on;
+                               regulator-min-microvolt = <3300000>;
+                               regulator-max-microvolt = <3300000>;
+                       };
+
+                       reg_dldo4: dldo4 {
+                               regulator-name = "vcc-3v3-ext-c";
+                               regulator-always-on;
+                               regulator-min-microvolt = <3300000>;
+                               regulator-max-microvolt = <3300000>;
+                       };
+
+                       reg_eldo1: eldo1 {
+                               regulator-name = "vbat-wifi-b";
+                               regulator-always-on;
+                               regulator-min-microvolt = <3300000>;
+                               regulator-max-microvolt = <3300000>;
+                       };
+
+                       reg_eldo2: eldo2 {
+                               regulator-name = "vbat-wifi-c";
+                               regulator-always-on;
+                               regulator-min-microvolt = <3300000>;
+                               regulator-max-microvolt = <3300000>;
+                       };
+
+                       reg_eldo3: eldo3 {
+                               regulator-name = "vbat-wifi-d";
+                               regulator-always-on;
+                               regulator-min-microvolt = <3300000>;
+                               regulator-max-microvolt = <3300000>;
+                       };
+               };
+
+               usb_power_supply: usb-power {
+                       compatible = "x-powers,axp221-usb-power-supply";
+                       status = "disabled";
+               };
+       };
+};
+
+&mmc0 {
+       broken-cd;
+       bus-width = <4>;
+       disable-wp;
+       vmmc-supply = <&reg_dcdc1>;
+       vqmmc-supply = <&reg_vcc_3v3>;
+       pinctrl-0 = <&mmc0_pins>;
+       pinctrl-names = "default";
+       status = "okay";
+};
+
+&mmc1 {
+       bus-width = <4>;
+       mmc-pwrseq = <&wifi_pwrseq>;
+       non-removable;
+       vmmc-supply = <&reg_dldo1>;
+       vqmmc-supply = <&reg_aldo3>;
+       pinctrl-0 = <&mmc1_pins>;
+       pinctrl-names = "default";
+       status = "okay";
+
+       ap6256: wifi@1 {
+               compatible = "brcm,bcm43456-fmac", "brcm,bcm4329-fmac";
+               reg = <1>;
+               interrupt-parent = <&pio>;
+               interrupts = <6 10 IRQ_TYPE_LEVEL_LOW>; /* PG10/GPIO4 */
+               interrupt-names = "host-wake";
+       };
+};
+
+&ohci1 {
+       status = "okay";
+};
+
+&pio {
+       vcc-pg-supply = <&reg_ldoa>;
+};
+
+&uart0 {
+       pinctrl-0 = <&uart0_pb8_pins>;
+       pinctrl-names = "default";
+       status = "okay";
+};
+
+&uart1 {
+       uart-has-rtscts;
+       pinctrl-0 = <&uart1_pg6_pins>, <&uart1_pg8_rts_cts_pins>;
+       pinctrl-names = "default";
+       status = "okay";
+
+       bluetooth {
+               compatible = "brcm,bcm4345c5";
+               interrupt-parent = <&pio>;
+               interrupts = <6 17 IRQ_TYPE_LEVEL_HIGH>; /* PG17/GPIO6 */
+               device-wakeup-gpios = <&pio 6 16 GPIO_ACTIVE_HIGH>; /* PG16/GPIO7 */
+               shutdown-gpios = <&pio 6 18 GPIO_ACTIVE_HIGH>; /* PG18/GPIO5 */
+               max-speed = <1500000>;
+               vbat-supply = <&reg_dldo1>;
+               vddio-supply = <&reg_aldo3>;
+       };
+};
+
+&usb_otg {
+       dr_mode = "peripheral";
+       status = "okay";
+};
+
+&usbphy {
+       usb0_vbus_power-supply = <&ac_power_supply>;
+       usb1_vbus-supply = <&reg_vcc>;
+       status = "okay";
+};

diff --git a/arch/riscv/boot/dts/allwinner/sun20i-d1-devterm-v3.14.dts b/arch/riscv/boot/dts/allwinner/sun20i-d1-devterm-v3.14.dts
new file mode 100644 (file)
index 0000000..bc5c84f
--- /dev/null
+++ b/arch/riscv/boot/dts/allwinner/sun20i-d1-devterm-v3.14.dts
@@ -0,0 +1,36 @@
+// SPDX-License-Identifier: (GPL-2.0+ or MIT)
+// Copyright (C) 2022 Samuel Holland <samuel@sholland.org>
+
+#include "sun20i-d1-clockworkpi-v3.14.dts"
+
+/ {
+       model = "Clockwork DevTerm (R-01)";
+       compatible = "clockwork,r-01-devterm-v3.14",
+                    "clockwork,r-01-clockworkpi-v3.14",
+                    "allwinner,sun20i-d1";
+
+       fan {
+               compatible = "gpio-fan";
+               gpios = <&pio 3 10 GPIO_ACTIVE_HIGH>; /* PD10/GPIO41 */
+               gpio-fan,speed-map = <0    0>,
+                                    <6000 1>;
+               #cooling-cells = <2>;
+       };
+
+       i2c-gpio-0 {
+               compatible = "i2c-gpio";
+               sda-gpios = <&pio 3 14 (GPIO_ACTIVE_HIGH|GPIO_OPEN_DRAIN)>; /* PD14/GPIO44 */
+               scl-gpios = <&pio 3 15 (GPIO_ACTIVE_HIGH|GPIO_OPEN_DRAIN)>; /* PD15/GPIO45 */
+               #address-cells = <1>;
+               #size-cells = <0>;
+
+               adc@54 {
+                       compatible = "ti,adc101c";
+                       reg = <0x54>;
+                       interrupt-parent = <&pio>;
+                       interrupts = <4 12 IRQ_TYPE_LEVEL_LOW>; /* PE12/GPIO35 */
+                       vref-supply = <&reg_dldo2>;
+                       #io-channel-cells = <1>;
+               };
+       };
+};