On 11/12/24 21:31, Denzeel Oliva wrote:
> Add initial support for the Samsung Galaxy S20 FE (r8s/SM-G780F) device.
> Its launch was in 2020 and also based on the Exynos 990 SoC.
> It is only configured with 6GB of RAM, although storage options may differ.
As far as I can tell, there are models with more than 6gb's of ram.
How would the memory node differ for them?
>
> This device tree adds support for the following:
>
> - SimpleFB
> - 6GB RAM
> - Buttons
>
> Signed-off-by: Denzeel Oliva <wachiturroxd150@xxxxxxxxx>
> ---
> arch/arm64/boot/dts/exynos/Makefile | 1 +
> arch/arm64/boot/dts/exynos/exynos990-r8s.dts | 115 +++++++++++++++++++
> 2 files changed, 116 insertions(+)
> create mode 100644 arch/arm64/boot/dts/exynos/exynos990-r8s.dts
>
> diff --git a/arch/arm64/boot/dts/exynos/Makefile b/arch/arm64/boot/dts/exynos/Makefile
> index 7a934499b..948a2c6cb 100644
> --- a/arch/arm64/boot/dts/exynos/Makefile
> +++ b/arch/arm64/boot/dts/exynos/Makefile
> @@ -9,5 +9,6 @@ dtb-$(CONFIG_ARCH_EXYNOS) += \
> exynos850-e850-96.dtb \
> exynos8895-dreamlte.dtb \
> exynos990-c1s.dtb \
> + exynos990-r8s.dtb \
> exynosautov9-sadk.dtb \
> exynosautov920-sadk.dtb
> diff --git a/arch/arm64/boot/dts/exynos/exynos990-r8s.dts b/arch/arm64/boot/dts/exynos/exynos990-r8s.dts
> new file mode 100644
> index 000000000..b21863bbb
> --- /dev/null
> +++ b/arch/arm64/boot/dts/exynos/exynos990-r8s.dts
> @@ -0,0 +1,115 @@
> +// SPDX-License-Identifier: GPL-2.0 OR BSD-3-Clause
> +/*
> + * Samsung Galaxy S20 FE (r8s/SM-G780F) device tree source
> + *
> + * Copyright (c) 2024, Denzeel Oliva <wachiturroxd150@xxxxxxxxx>
> + */
> +
> +/dts-v1/;
> +#include "exynos990.dtsi"
> +#include <dt-bindings/gpio/gpio.h>
> +#include <dt-bindings/input/input.h>
> +#include <dt-bindings/interrupt-controller/irq.h>
> +
> +/ {
> + model = "Samsung Galaxy S20 FE";
> + compatible = "samsung,r8s", "samsung,exynos990";
> +
> + #address-cells = <2>;
> + #size-cells = <2>;
> +
> + chosen {
> + #address-cells = <2>;
> + #size-cells = <2>;
> + ranges;
> +
> + framebuffer0: framebuffer@f1000000 {
> + compatible = "simple-framebuffer";
> + reg = <0 0xf1000000 0 (1080 * 2400 * 4)>;
> + width = <1080>;
> + height = <2400>;
> + stride = <(1080 * 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 - last block */
> + <0x08 0x80000000 0x0 0x0c000000>;
0x08 -> 0x8
Best regards, Ivo.
> + };
> +
> + reserved-memory {
> + #address-cells = <2>;
> + #size-cells = <2>;
> + ranges;
> +
> + cont_splash_mem: framebuffer@f1000000 {
> + reg = <0 0xf1000000 0 0x13c6800>;
> + 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>;
> + };
> +};
