Commit d08e455a authored by Janne Grunau's avatar Janne Grunau Committed by Sven Peter
Browse files

arm64: dts: apple: t600x: Add spi controller nodes 



Apple silicon devices have one or more SPI devices. Add device tree
nodes for all known controllers. The missing ones could be guessed and
tested with a little effort but since the devices expose no pins and
no new devices are expected there is no point in spending the effort.
SPI is used for spi-nor and input devices like keyboard, trackpad,
touchscreen and fingerprint reader. Only the spi-nor flash has upstream
drivers. Support for it will be added in a following commit.

Reviewed-by: default avatarNeal Gompa <neal@gompa.dev>
Signed-off-by: default avatarJanne Grunau <j@jannau.net>
Link: https://lore.kernel.org/r/20241203-asahi-spi-dt-v2-4-cd68bfaf0c84@jannau.net


Signed-off-by: default avatarSven Peter <sven@svenpeter.dev>
parent 0a6d561c

arch/arm64/boot/dts/apple/t600x-common.dtsi

+7 −0
Original line number Diff line number Diff line
@@ -362,6 +362,13 @@ clkref: clock-ref { 
		clock-output-names = "clkref";

	};



	clk_200m: clock-200m {

		compatible = "fixed-clock";

		#clock-cells = <0>;

		clock-frequency = <200000000>;

		clock-output-names = "clk_200m";

	};



	/*

	 * This is a fabulated representation of the input clock

	 * to NCO since we don't know the true clock tree.

arch/arm64/boot/dts/apple/t600x-die0.dtsi

+28 −0
Original line number Diff line number Diff line
@@ -163,6 +163,34 @@ i2c5: i2c@39b054000 { 
		status = "disabled";

	};



	spi1: spi@39b104000 {

		compatible = "apple,t6000-spi", "apple,spi";

		reg = <0x3 0x9b104000 0x0 0x4000>;

		interrupt-parent = <&aic>;

		interrupts = <AIC_IRQ 0 1107 IRQ_TYPE_LEVEL_HIGH>;

		#address-cells = <1>;

		#size-cells = <0>;

		clocks = <&clk_200m>;

		pinctrl-0 = <&spi1_pins>;

		pinctrl-names = "default";

		power-domains = <&ps_spi1>;

		status = "disabled";

	};



	spi3: spi@39b10c000 {

		compatible = "apple,t6000-spi", "apple,spi";

		reg = <0x3 0x9b10c000 0x0 0x4000>;

		interrupt-parent = <&aic>;

		interrupts = <AIC_IRQ 0 1109 IRQ_TYPE_LEVEL_HIGH>;

		#address-cells = <1>;

		#size-cells = <0>;

		clocks = <&clkref>;

		pinctrl-0 = <&spi3_pins>;

		pinctrl-names = "default";

		power-domains = <&ps_spi3>;

		status = "disabled";

	};



	serial0: serial@39b200000 {

		compatible = "apple,s5l-uart";

		reg = <0x3 0x9b200000 0x0 0x1000>;

arch/arm64/boot/dts/apple/t600x-gpio-pins.dtsi

+14 −0
Original line number Diff line number Diff line
@@ -36,6 +36,20 @@ i2c5_pins: i2c5-pins { 
			<APPLE_PINMUX(101, 1)>;

	};



	spi1_pins: spi1-pins {

		pinmux = <APPLE_PINMUX(10, 1)>,

			<APPLE_PINMUX(11, 1)>,

			<APPLE_PINMUX(32, 1)>,

			<APPLE_PINMUX(33, 1)>;

	};



	spi3_pins: spi3-pins {

		pinmux = <APPLE_PINMUX(52, 1)>,

			<APPLE_PINMUX(53, 1)>,

			<APPLE_PINMUX(54, 1)>,

			<APPLE_PINMUX(55, 1)>;

	};



	pcie_pins: pcie-pins {

		pinmux = <APPLE_PINMUX(0, 1)>,

				<APPLE_PINMUX(1, 1)>,