Commit d82b3562 authored by AngeloGioacchino Del Regno's avatar AngeloGioacchino Del Regno Committed by Matthias Brugger
Browse files

arm64: dts: mediatek: cherry: Enable I2C and SPI controllers 



This platform uses eight I2C controllers and one SPI controller:
in preparation for enabling devices attached to these controllers,
add basic configuration to enable the busses.

Signed-off-by: default avatarAngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
Reviewed-by: default avatarNícolas F. R. A. Prado <nfraprado@collabora.com>
Link: https://lore.kernel.org/r/20220704101321.44835-8-angelogioacchino.delregno@collabora.com


Signed-off-by: default avatarMatthias Brugger <matthias.bgg@gmail.com>
parent 5bf7dabe

arch/arm64/boot/dts/mediatek/mt8195-cherry.dtsi

+148 −0
Original line number Diff line number Diff line
@@ -9,6 +9,13 @@ 


/ {

	aliases {

		i2c0 = &i2c0;

		i2c1 = &i2c1;

		i2c2 = &i2c2;

		i2c3 = &i2c3;

		i2c4 = &i2c4;

		i2c5 = &i2c5;

		i2c7 = &i2c7;

		mmc0 = &mmc0;

		serial0 = &uart0;

	};
@@ -90,6 +97,63 @@ ppvar_sys: regulator-ppvar-sys { 
	};

};



&i2c0 {

	status = "okay";



	clock-frequency = <400000>;

	pinctrl-names = "default";

	pinctrl-0 = <&i2c0_pins>;

};



&i2c1 {

	status = "okay";



	clock-frequency = <400000>;

	i2c-scl-internal-delay-ns = <12500>;

	pinctrl-names = "default";

	pinctrl-0 = <&i2c1_pins>;

};



&i2c2 {

	status = "okay";



	clock-frequency = <400000>;

	pinctrl-names = "default";

	pinctrl-0 = <&i2c2_pins>;

};



&i2c3 {

	status = "okay";



	clock-frequency = <400000>;

	pinctrl-names = "default";

	pinctrl-0 = <&i2c3_pins>;

};



&i2c4 {

	status = "okay";



	clock-frequency = <400000>;

	pinctrl-names = "default";

	pinctrl-0 = <&i2c4_pins>;

};



&i2c5 {

	status = "okay";



	clock-frequency = <400000>;

	pinctrl-names = "default";

	pinctrl-0 = <&i2c5_pins>;

};



&i2c7 {

	status = "okay";



	clock-frequency = <400000>;

	pinctrl-names = "default";

	pinctrl-0 = <&i2c7_pins>;

};



&mmc0 {

	status = "okay";
@@ -302,6 +366,68 @@ &pio { 
		"AP_SPI_FLASH_MOSI",

		"AP_SPI_FLASH_MISO";



	i2c0_pins: i2c0-default-pins {

		pins-bus {

			pinmux = <PINMUX_GPIO8__FUNC_SDA0>,

				 <PINMUX_GPIO9__FUNC_SCL0>;

			bias-disable;

			drive-strength-microamp = <1000>;

		};

	};



	i2c1_pins: i2c1-default-pins {

		pins-bus {

			pinmux = <PINMUX_GPIO10__FUNC_SDA1>,

				 <PINMUX_GPIO11__FUNC_SCL1>;

			bias-pull-up = <1000>;

			drive-strength-microamp = <1000>;

		};

	};



	i2c2_pins: i2c2-default-pins {

		pins-bus {

			pinmux = <PINMUX_GPIO12__FUNC_SDA2>,

				 <PINMUX_GPIO13__FUNC_SCL2>;

			bias-disable;

			drive-strength-microamp = <1000>;

		};

	};



	i2c3_pins: i2c3-default-pins {

		pins-bus {

			pinmux = <PINMUX_GPIO14__FUNC_SDA3>,

				 <PINMUX_GPIO15__FUNC_SCL3>;

			bias-pull-up = <1000>;

			drive-strength-microamp = <1000>;

		};

	};



	i2c4_pins: i2c4-default-pins {

		pins-bus {

			pinmux = <PINMUX_GPIO16__FUNC_SDA4>,

				 <PINMUX_GPIO17__FUNC_SCL4>;

			bias-pull-up = <1000>;

			drive-strength = <4>;

		};

	};



	i2c5_pins: i2c5-default-pins {

		pins-bus {

			pinmux = <PINMUX_GPIO29__FUNC_SCL5>,

				 <PINMUX_GPIO30__FUNC_SDA5>;

			bias-disable;

			drive-strength-microamp = <1000>;

		};

	};



	i2c7_pins: i2c7-default-pins {

		pins-bus {

			pinmux = <PINMUX_GPIO27__FUNC_SCL7>,

				 <PINMUX_GPIO28__FUNC_SDA7>;

			bias-disable;

		};

	};



	mmc0_pins_default: mmc0-default-pins {

		pins-cmd-dat {

			pinmux = <PINMUX_GPIO126__FUNC_MSDC0_DAT0>,
@@ -409,12 +535,34 @@ pins-low-power-pupd { 
			bias-pull-down = <MTK_PUPD_SET_R1R0_01>;

		};

	};



	spi0_pins: spi0-default-pins {

		pins-cs-mosi-clk {

			pinmux = <PINMUX_GPIO132__FUNC_SPIM0_CSB>,

				 <PINMUX_GPIO134__FUNC_SPIM0_MO>,

				 <PINMUX_GPIO133__FUNC_SPIM0_CLK>;

			bias-disable;

		};



		pins-miso {

			pinmux = <PINMUX_GPIO135__FUNC_SPIM0_MI>;

			bias-pull-down;

		};

	};

};



&pmic {

	interrupts-extended = <&pio 222 IRQ_TYPE_LEVEL_HIGH>;

};



&spi0 {

	status = "okay";



	pinctrl-names = "default";

	pinctrl-0 = <&spi0_pins>;

	mediatek,pad-select = <0>;

};



&uart0 {

	status = "okay";

};