arm64: dts: exynos: google: Add initial Oriole/pixel 6 board support

Add initial board support for the Pixel 6 phone code named Oriole. This
has been tested with a minimal busybox initramfs and boots to a shell.

Tested-by: Will McVicker <willmcvicker@google.com>
Reviewed-by: Sam Protsenko <semen.protsenko@linaro.org>
Signed-off-by: Peter Griffin <peter.griffin@linaro.org>
Reviewed-by: Alim Akhtar <alim.akhtar@samsung.com>
Link: https://lore.kernel.org/r/20231211162331.435900-16-peter.griffin@linaro.org
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>

diff --git a/arch/arm64/boot/dts/exynos/Makefile b/arch/arm64/boot/dts/exynos/Makefile
index da06e1a9456cef5175cc5965b4b8f63247c39a67..d7f2191c2cdbe9674c067dfd93685ff4821a5776 100644 (file)
--- a/arch/arm64/boot/dts/exynos/Makefile
+++ b/arch/arm64/boot/dts/exynos/Makefile
@@ -1,4 +1,6 @@
 # SPDX-License-Identifier: GPL-2.0
+subdir-y += google
+
 dtb-$(CONFIG_ARCH_EXYNOS) += \
        exynos5433-tm2.dtb              \
        exynos5433-tm2e.dtb             \

diff --git a/arch/arm64/boot/dts/exynos/google/Makefile b/arch/arm64/boot/dts/exynos/google/Makefile
new file mode 100644 (file)
index 0000000..0a6d5e1
--- /dev/null
+++ b/arch/arm64/boot/dts/exynos/google/Makefile
@@ -0,0 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
+
+dtb-$(CONFIG_ARCH_EXYNOS) += \
+       gs101-oriole.dtb \

diff --git a/arch/arm64/boot/dts/exynos/google/gs101-oriole.dts b/arch/arm64/boot/dts/exynos/google/gs101-oriole.dts
new file mode 100644 (file)
index 0000000..4a71f75
--- /dev/null
+++ b/arch/arm64/boot/dts/exynos/google/gs101-oriole.dts
@@ -0,0 +1,105 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * Oriole Device Tree
+ *
+ * Copyright 2021-2023 Google LLC
+ * Copyright 2023 Linaro Ltd - <peter.griffin@linaro.org>
+ */
+
+/dts-v1/;
+
+#include <dt-bindings/gpio/gpio.h>
+#include <dt-bindings/input/input.h>
+#include "gs101-pinctrl.h"
+#include "gs101.dtsi"
+
+/ {
+       model = "Oriole";
+       compatible = "google,gs101-oriole", "google,gs101";
+
+       aliases {
+               serial0 = &serial_0;
+       };
+
+       chosen {
+               /* Bootloader expects bootargs specified otherwise it crashes */
+               bootargs = "";
+               stdout-path = &serial_0;
+       };
+
+       gpio-keys {
+               compatible = "gpio-keys";
+               pinctrl-names = "default";
+               pinctrl-0 = <&key_voldown>, <&key_volup>, <&key_power>;
+
+               button-vol-down {
+                       label = "KEY_VOLUMEDOWN";
+                       linux,code = <KEY_VOLUMEDOWN>;
+                       gpios = <&gpa7 3 GPIO_ACTIVE_LOW>;
+                       wakeup-source;
+               };
+
+               button-vol-up {
+                       label = "KEY_VOLUMEUP";
+                       linux,code = <KEY_VOLUMEUP>;
+                       gpios = <&gpa8 1 GPIO_ACTIVE_LOW>;
+                       wakeup-source;
+               };
+
+               button-power {
+                       label = "KEY_POWER";
+                       linux,code = <KEY_POWER>;
+                       gpios = <&gpa10 1 GPIO_ACTIVE_LOW>;
+                       wakeup-source;
+               };
+       };
+};
+
+&ext_24_5m {
+       clock-frequency = <24576000>;
+};
+
+&ext_200m {
+       clock-frequency = <200000000>;
+};
+
+&pinctrl_far_alive {
+       key_voldown: key-voldown-pins {
+               samsung,pins = "gpa7-3";
+               samsung,pin-function = <GS101_PIN_FUNC_EINT>;
+               samsung,pin-pud = <GS101_PIN_PULL_NONE>;
+               samsung,pin-drv = <GS101_PIN_DRV_2_5_MA>;
+       };
+
+       key_volup: key-volup-pins {
+               samsung,pins = "gpa8-1";
+               samsung,pin-function = <GS101_PIN_FUNC_EINT>;
+               samsung,pin-pud = <GS101_PIN_PULL_NONE>;
+               samsung,pin-drv = <GS101_PIN_DRV_2_5_MA>;
+       };
+};
+
+&pinctrl_gpio_alive {
+       key_power: key-power-pins {
+               samsung,pins = "gpa10-1";
+               samsung,pin-function = <GS101_PIN_FUNC_EINT>;
+               samsung,pin-pud = <GS101_PIN_PULL_NONE>;
+               samsung,pin-drv = <GS101_PIN_DRV_2_5_MA>;
+       };
+};
+
+&serial_0 {
+       pinctrl-names = "default";
+       pinctrl-0 = <&uart0_bus>;
+       status = "okay";
+};
+
+&usi_uart {
+       samsung,clkreq-on; /* needed for UART mode */
+       status = "okay";
+};
+
+&watchdog_cl0 {
+       timeout-sec = <30>;
+       status = "okay";
+};