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Subject[PATCH v2 2/2] arm64: dts: mediatek: add pumpkin board dts
Date
The pumpkin board is  made by Gossamer Engineering and is using
a MediaTek SoC. The board currently comes in two available version:
MT8516 SoC and MT8167 SoC.
The board provides the following IOs: eMMC, NAND, SD card, USB type-A,
Ethernet, Wi-Fi, Bluetooth, Audio (jack out, 2 PDM port, 1 analog in),
serial over USB, and an expansion header.

Additionally there is a HDMI port, DSI port, and camera port only
on the MT8167 version of the board.

The board can be powered by battery and/or via a USB Type-C port and
is using a PMIC MT6392.

The eMMC and NAND are sharing pins and cannot be used together.

This commit is adding a basic DTS for the MT8516 flavor.

Signed-off-by: Fabien Parent <fparent@baylibre.com>
---

V2:
* Remove dependency on PMIC MT6392 to make it easier to merge the DTS
until the PMIC code is merged.
* Rename a bunch of label to make them more straighforward
* Use names for keycode instead of magic values
* Add chosen for serial port

---
arch/arm64/boot/dts/mediatek/Makefile | 1 +
.../boot/dts/mediatek/mt8516-pumpkin.dts | 19 ++
.../boot/dts/mediatek/pumpkin-common.dtsi | 188 ++++++++++++++++++
3 files changed, 208 insertions(+)
create mode 100644 arch/arm64/boot/dts/mediatek/mt8516-pumpkin.dts
create mode 100644 arch/arm64/boot/dts/mediatek/pumpkin-common.dtsi

diff --git a/arch/arm64/boot/dts/mediatek/Makefile b/arch/arm64/boot/dts/mediatek/Makefile
index 458bbc422a94..2f8967cb8717 100644
--- a/arch/arm64/boot/dts/mediatek/Makefile
+++ b/arch/arm64/boot/dts/mediatek/Makefile
@@ -8,3 +8,4 @@ dtb-$(CONFIG_ARCH_MEDIATEK) += mt7622-rfb1.dtb
dtb-$(CONFIG_ARCH_MEDIATEK) += mt7622-bananapi-bpi-r64.dtb
dtb-$(CONFIG_ARCH_MEDIATEK) += mt8173-evb.dtb
dtb-$(CONFIG_ARCH_MEDIATEK) += mt8183-evb.dtb
+dtb-$(CONFIG_ARCH_MEDIATEK) += mt8516-pumpkin.dtb
diff --git a/arch/arm64/boot/dts/mediatek/mt8516-pumpkin.dts b/arch/arm64/boot/dts/mediatek/mt8516-pumpkin.dts
new file mode 100644
index 000000000000..d8e283245fbe
--- /dev/null
+++ b/arch/arm64/boot/dts/mediatek/mt8516-pumpkin.dts
@@ -0,0 +1,19 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Copyright (c) 2019 BayLibre, SAS.
+ * Author: Fabien Parent <fparent@baylibre.com>
+ */
+
+/dts-v1/;
+
+#include "pumpkin-common.dtsi"
+
+/ {
+ model = "Pumpkin MT8516";
+ compatible = "pumpkin,mt8516", "mediatek,mt8516";
+
+ memory@40000000 {
+ device_type = "memory";
+ reg = <0 0x40000000 0 0x40000000>;
+ };
+};
diff --git a/arch/arm64/boot/dts/mediatek/pumpkin-common.dtsi b/arch/arm64/boot/dts/mediatek/pumpkin-common.dtsi
new file mode 100644
index 000000000000..d143cf33cfff
--- /dev/null
+++ b/arch/arm64/boot/dts/mediatek/pumpkin-common.dtsi
@@ -0,0 +1,188 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Copyright (c) 2019 BayLibre, SAS.
+ * Author: Fabien Parent <fparent@baylibre.com>
+ */
+
+#include <dt-bindings/gpio/gpio.h>
+#include <dt-bindings/input/linux-event-codes.h>
+
+#include "mt8516.dtsi"
+
+/ {
+ aliases {
+ serial0 = &uart0;
+ };
+
+ chosen {
+ stdout-path = "serial0:921600n8";
+ };
+
+ gpio-keys {
+ compatible = "gpio-keys";
+ input-name = "gpio-keys";
+ pinctrl-names = "default";
+ pinctrl-0 = <&gpio_keys_pins>;
+
+ volume-up {
+ gpios = <&pio 42 GPIO_ACTIVE_LOW>;
+ label = "volume_up";
+ linux,code = <KEY_VOLUMEUP>;
+ wakeup-source;
+ debounce-interval = <15>;
+ };
+
+ volume-down {
+ gpios = <&pio 43 GPIO_ACTIVE_LOW>;
+ label = "volume_down";
+ linux,code = <KEY_VOLUMEDOWN>;
+ wakeup-source;
+ debounce-interval = <15>;
+ };
+ };
+};
+
+&i2c0 {
+ clock-div = <2>;
+ pinctrl-names = "default";
+ pinctrl-0 = <&i2c0_pins>;
+ status = "okay";
+
+ tca6416: gpio@20 {
+ compatible = "ti,tca6416";
+ reg = <0x20>;
+ rst-gpio = <&pio 65 GPIO_ACTIVE_HIGH>;
+ pinctrl-names = "default";
+ pinctrl-0 = <&tca6416_pins>;
+
+ gpio-controller;
+ #gpio-cells = <2>;
+
+ eint20_mux_sel0 {
+ gpio-hog;
+ gpios = <0 0>;
+ input;
+ line-name = "eint20_mux_sel0";
+ };
+
+ expcon_mux_sel1 {
+ gpio-hog;
+ gpios = <1 0>;
+ input;
+ line-name = "expcon_mux_sel1";
+ };
+
+ mrg_di_mux_sel2 {
+ gpio-hog;
+ gpios = <2 0>;
+ input;
+ line-name = "mrg_di_mux_sel2";
+ };
+
+ sd_sdio_mux_sel3 {
+ gpio-hog;
+ gpios = <3 0>;
+ input;
+ line-name = "sd_sdio_mux_sel3";
+ };
+
+ sd_sdio_mux_ctrl7 {
+ gpio-hog;
+ gpios = <7 0>;
+ output-low;
+ line-name = "sd_sdio_mux_ctrl7";
+ };
+
+ hw_id0 {
+ gpio-hog;
+ gpios = <8 0>;
+ input;
+ line-name = "hw_id0";
+ };
+
+ hw_id1 {
+ gpio-hog;
+ gpios = <9 0>;
+ input;
+ line-name = "hw_id1";
+ };
+
+ hw_id2 {
+ gpio-hog;
+ gpios = <10 0>;
+ input;
+ line-name = "hw_id2";
+ };
+
+ fg_int_n {
+ gpio-hog;
+ gpios = <11 0>;
+ input;
+ line-name = "fg_int_n";
+ };
+
+ usba_pwr_en {
+ gpio-hog;
+ gpios = <12 0>;
+ output-high;
+ line-name = "usba_pwr_en";
+ };
+
+ wifi_3v3_pg {
+ gpio-hog;
+ gpios = <13 0>;
+ input;
+ line-name = "wifi_3v3_pg";
+ };
+
+ cam_rst {
+ gpio-hog;
+ gpios = <14 0>;
+ output-low;
+ line-name = "cam_rst";
+ };
+
+ cam_pwdn {
+ gpio-hog;
+ gpios = <15 0>;
+ output-low;
+ line-name = "cam_pwdn";
+ };
+ };
+};
+
+&uart0 {
+ status = "okay";
+};
+
+&pio {
+ gpio_keys_pins: gpiokeys{
+ pins_gpio {
+ pinmux = <MT8516_PIN_42_KPCOL0__FUNC_GPIO42>,
+ <MT8516_PIN_43_KPCOL1__FUNC_GPIO43>;
+ bias-pull-up;
+ input-enable;
+ };
+ };
+
+ i2c0_pins: i2c0 {
+ pins_i2c {
+ pinmux = <MT8516_PIN_58_SDA0__FUNC_SDA0_0>,
+ <MT8516_PIN_59_SCL0__FUNC_SCL0_0>;
+ bias-disable;
+ };
+ };
+
+ tca6416_pins: tca6416 {
+ pin_gpio_mux_rst_n {
+ pinmux = <MT8516_PIN_65_UTXD1__FUNC_GPIO65>;
+ output-high;
+ };
+
+ pin_gpio_mux_int_n {
+ pinmux = <MT8516_PIN_64_URXD1__FUNC_GPIO64>;
+ input-enable;
+ bias-pull-up;
+ };
+ };
+};
--
2.25.0.rc0
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