[PATCH 2/2] arm64: dts: meson: add support for the WeTek Core 2
Christian Hewitt
christianshewitt at gmail.com
Sat Jul 18 01:00:56 EDT 2020
The WeTek Core2 is a commercial device based on the Amlogic Q200 reference
design but with the following differences:
- 3GB RAM, 32GB eMMC
- Blue and Red LEDs used to signal on/off status
- uart_AO can be accessed after opening the case; soldering required
- USB OTG is not accessible (inside the case)
- Realtek RTL8152 Ethernet (internal USB connection)
Signed-off-by: Christian Hewitt <christianshewitt at gmail.com>
---
arch/arm64/boot/dts/amlogic/Makefile | 1 +
.../dts/amlogic/meson-gxm-wetek-core2.dts | 90 +++++++++++++++++++
2 files changed, 91 insertions(+)
create mode 100644 arch/arm64/boot/dts/amlogic/meson-gxm-wetek-core2.dts
diff --git a/arch/arm64/boot/dts/amlogic/Makefile b/arch/arm64/boot/dts/amlogic/Makefile
index 5cac4d1d487d..4e2239ffcaa5 100644
--- a/arch/arm64/boot/dts/amlogic/Makefile
+++ b/arch/arm64/boot/dts/amlogic/Makefile
@@ -41,6 +41,7 @@ dtb-$(CONFIG_ARCH_MESON) += meson-gxm-q201.dtb
dtb-$(CONFIG_ARCH_MESON) += meson-gxm-rbox-pro.dtb
dtb-$(CONFIG_ARCH_MESON) += meson-gxm-s912-libretech-pc.dtb
dtb-$(CONFIG_ARCH_MESON) += meson-gxm-vega-s96.dtb
+dtb-$(CONFIG_ARCH_MESON) += meson-gxm-wetek-core2.dtb
dtb-$(CONFIG_ARCH_MESON) += meson-sm1-sei610.dtb
dtb-$(CONFIG_ARCH_MESON) += meson-sm1-khadas-vim3l.dtb
dtb-$(CONFIG_ARCH_MESON) += meson-sm1-odroid-c4.dtb
diff --git a/arch/arm64/boot/dts/amlogic/meson-gxm-wetek-core2.dts b/arch/arm64/boot/dts/amlogic/meson-gxm-wetek-core2.dts
new file mode 100644
index 000000000000..44fc5ea38dc0
--- /dev/null
+++ b/arch/arm64/boot/dts/amlogic/meson-gxm-wetek-core2.dts
@@ -0,0 +1,90 @@
+// SPDX-License-Identifier: (GPL-2.0+ OR MIT)
+/*
+ * Copyright (c) 2020 Christian Hewitt <christianshewitt at gmail.com>
+ */
+
+/dts-v1/;
+
+#include "meson-gxm.dtsi"
+#include "meson-gx-p23x-q20x.dtsi"
+#include <dt-bindings/input/input.h>
+#include <dt-bindings/leds/common.h>
+
+/ {
+ compatible = "wetek,core2", "amlogic,s912", "amlogic,meson-gxm";
+ model = "WeTek Core 2";
+
+ memory at 0 {
+ device_type = "memory";
+ reg = <0x0 0x0 0x0 0x80000000>; /* 2 GiB or 3 GiB */
+ };
+
+ leds {
+ compatible = "gpio-leds";
+
+ blue {
+ color = <LED_COLOR_ID_BLUE>;
+ function = LED_FUNCTION_STATUS;
+ gpios = <&gpio GPIODV_24 GPIO_ACTIVE_HIGH>;
+ default-state = "on";
+ };
+ };
+
+ adc-keys {
+ compatible = "adc-keys";
+ io-channels = <&saradc 0>;
+ io-channel-names = "buttons";
+ keyup-threshold-microvolt = <1710000>;
+
+ button-update {
+ label = "update";
+ linux,code = <KEY_VENDOR>;
+ press-threshold-microvolt = <10000>;
+ };
+ };
+
+ gpio-keys-polled {
+ compatible = "gpio-keys-polled";
+ #address-cells = <1>;
+ #size-cells = <0>;
+ poll-interval = <100>;
+
+ button-power {
+ label = "power";
+ linux,code = <KEY_POWER>;
+ gpios = <&gpio_ao GPIOAO_2 GPIO_ACTIVE_LOW>;
+ };
+ };
+};
+
+/* This is disabled as Realtek RTL8152 USB provides Ethernet */
+ðmac {
+ status = "disabled";
+ phy-mode = "rmii";
+ phy-handle = <&internal_phy>;
+};
+
+&internal_phy {
+ pinctrl-0 = <ð_link_led_pins>, <ð_act_led_pins>;
+ pinctrl-names = "default";
+};
+
+&ir {
+ linux,rc-map-name = "rc-wetek-play2";
+};
+
+/* This is connected to the Bluetooth module: */
+&uart_A {
+ status = "okay";
+ pinctrl-0 = <&uart_a_pins>, <&uart_a_cts_rts_pins>;
+ pinctrl-names = "default";
+ uart-has-rtscts;
+
+ bluetooth {
+ compatible = "brcm,bcm43438-bt";
+ enable-gpios = <&gpio GPIOX_17 GPIO_ACTIVE_HIGH>;
+ max-speed = <2000000>;
+ clocks = <&wifi32k>;
+ clock-names = "lpo";
+ };
+};
--
2.17.1
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