Add initial support for the Samsung Galaxy S20 Series (hubble) phones.
They were launched in 2020, and are based on the Exynos 990 SoC.
The devices have multiple RAM configurations,
starting from 8GB going all the way up to 16GB for the S20 Ultra devices.

This device tree adds support for the following:

- SimpleFB
- 8GB RAM (Any more will be mapped in device trees)
- Buttons

Signed-off-by: Umer Uddin <umer.uddin@mentallysanemainliners.org>
---
 .../dts/exynos/exynos990-hubble-common.dtsi   | 109 ++++++++++++++++++
 1 file changed, 109 insertions(+)
 create mode 100644 arch/arm64/boot/dts/exynos/exynos990-hubble-common.dtsi

diff --git a/arch/arm64/boot/dts/exynos/exynos990-hubble-common.dtsi b/arch/arm64/boot/dts/exynos/exynos990-hubble-common.dtsi
new file mode 100644
index 000000000..2c634e4bb
--- /dev/null
+++ b/arch/arm64/boot/dts/exynos/exynos990-hubble-common.dtsi
@@ -0,0 +1,109 @@
+// SPDX-License-Identifier: GPL-2.0 OR BSD-3-Clause
+/*
+ * Samsung Galaxy S20 Series device tree source
+ *
+ * Copyright (c) 2024, Umer Uddin <umer.uddin@mentallysanemainliners.org>
+ */
+
+/dts-v1/;
+#include "exynos990.dtsi"
+#include <dt-bindings/gpio/gpio.h>
+#include <dt-bindings/input/input.h>
+#include <dt-bindings/interrupt-controller/irq.h>
+
+/ {
+	chosen {
+		#address-cells = <2>;
+		#size-cells = <2>;
+		ranges;
+
+		framebuffer0: framebuffer@f1000000 {
+			compatible = "simple-framebuffer";
+			reg = <0 0xf1000000 0 (1440 * 3200 * 4)>;
+			width = <1440>;
+			height = <3200>;
+			stride = <(1440 * 4)>;
+			format = "a8r8g8b8";
+		};
+	};
+
+	memory@80000000 {
+		device_type = "memory";
+		reg = <0x0 0x80000000 0x0 0x3ab00000>,
+		      /* Memory hole */
+		      <0x0 0xc1200000 0x0 0x1ee00000>,
+		      /* Memory hole */
+		      <0x0 0xe1900000 0x0 0x1e700000>,
+		      /* Memory hole */
+		      <0x8 0x80000000 0x1 0x7ec00000>;
+	};
+
+	reserved-memory {
+		#address-cells = <2>;
+		#size-cells = <2>;
+		ranges;
+
+		cont_splash_mem: framebuffer@f1000000 {
+			reg = <0 0xf1000000 0 0x1194000>;
+			no-map;
+		};
+
+		abox_reserved: audio@f7fb0000 {
+			reg = <0 0xf7fb0000 0 0x2a50000>;
+			no-map;
+		};
+	};
+
+	gpio-keys {
+		compatible = "gpio-keys";
+
+		pinctrl-0 = <&key_power &key_voldown &key_volup>;
+		pinctrl-names = "default";
+
+		power-key {
+			label = "Power";
+			linux,code = <KEY_POWER>;
+			gpios = <&gpa2 4 GPIO_ACTIVE_LOW>;
+			wakeup-source;
+		};
+
+		voldown-key {
+			label = "Volume Down";
+			linux,code = <KEY_VOLUMEDOWN>;
+			gpios = <&gpa0 4 GPIO_ACTIVE_LOW>;
+		};
+
+		volup-key {
+			label = "Volume Up";
+			linux,code = <KEY_VOLUMEUP>;
+			gpios = <&gpa0 3 GPIO_ACTIVE_LOW>;
+		};
+	};
+};
+
+&oscclk {
+	clock-frequency = <26000000>;
+};
+
+&pinctrl_alive {
+	key_power: key-power-pins {
+		samsung,pins = "gpa2-4";
+		samsung,pin-function = <EXYNOS_PIN_FUNC_EINT>;
+		samsung,pin-pud = <EXYNOS_PIN_PULL_NONE>;
+		samsung,pin-drv = <EXYNOS5420_PIN_DRV_LV1>;
+	};
+
+	key_voldown: key-voldown-pins {
+		samsung,pins = "gpa0-4";
+		samsung,pin-function = <EXYNOS_PIN_FUNC_EINT>;
+		samsung,pin-pud = <EXYNOS_PIN_PULL_NONE>;
+		samsung,pin-drv = <EXYNOS5420_PIN_DRV_LV1>;
+	};
+
+	key_volup: key-volup-pins {
+		samsung,pins = "gpa0-3";
+		samsung,pin-function = <EXYNOS_PIN_FUNC_EINT>;
+		samsung,pin-pud = <EXYNOS_PIN_PULL_NONE>;
+		samsung,pin-drv = <EXYNOS5420_PIN_DRV_LV1>;
+	};
+};
-- 
2.47.0

On Thu, Oct 17, 2024 at 05:43:25PM +0100, Umer Uddin wrote:
> Add initial support for the Samsung Galaxy S20 Series (hubble) phones.
> They were launched in 2020, and are based on the Exynos 990 SoC.
> The devices have multiple RAM configurations,
> starting from 8GB going all the way up to 16GB for the S20 Ultra devices.
> 
> This device tree adds support for the following:
> 
> - SimpleFB
> - 8GB RAM (Any more will be mapped in device trees)
> - Buttons
> 
> Signed-off-by: Umer Uddin <umer.uddin@mentallysanemainliners.org>
> ---
>  .../dts/exynos/exynos990-hubble-common.dtsi   | 109 ++++++++++++++++++
>  1 file changed, 109 insertions(+)
>  create mode 100644 arch/arm64/boot/dts/exynos/exynos990-hubble-common.dtsi
> 
> diff --git a/arch/arm64/boot/dts/exynos/exynos990-hubble-common.dtsi b/arch/arm64/boot/dts/exynos/exynos990-hubble-common.dtsi
> new file mode 100644
> index 000000000..2c634e4bb
> --- /dev/null
> +++ b/arch/arm64/boot/dts/exynos/exynos990-hubble-common.dtsi
> @@ -0,0 +1,109 @@
> +// SPDX-License-Identifier: GPL-2.0 OR BSD-3-Clause
> +/*
> + * Samsung Galaxy S20 Series device tree source
> + *
> + * Copyright (c) 2024, Umer Uddin <umer.uddin@mentallysanemainliners.org>
> + */
> +
> +/dts-v1/;
> +#include "exynos990.dtsi"
> +#include <dt-bindings/gpio/gpio.h>
> +#include <dt-bindings/input/input.h>
> +#include <dt-bindings/interrupt-controller/irq.h>
> +
> +/ {
> +	chosen {
> +		#address-cells = <2>;
> +		#size-cells = <2>;
> +		ranges;
> +
> +		framebuffer0: framebuffer@f1000000 {
> +			compatible = "simple-framebuffer";
> +			reg = <0 0xf1000000 0 (1440 * 3200 * 4)>;
> +			width = <1440>;
> +			height = <3200>;
> +			stride = <(1440 * 4)>;
> +			format = "a8r8g8b8";
> +		};
> +	};
> +
> +	memory@80000000 {
> +		device_type = "memory";
> +		reg = <0x0 0x80000000 0x0 0x3ab00000>,
> +		      /* Memory hole */
> +		      <0x0 0xc1200000 0x0 0x1ee00000>,
> +		      /* Memory hole */
> +		      <0x0 0xe1900000 0x0 0x1e700000>,
> +		      /* Memory hole */
> +		      <0x8 0x80000000 0x1 0x7ec00000>;


If I am counting correctly, that's only 8 GB, not 12.

Best regards,
Krzysztof