[PATCH v2 2/5] arm64: dts: apple: t8103: Add spi controller nodes
From: Janne Grunau via B4 Relay <devnull+j.jannau.net@kernel.org>
Date: 2024-12-03 07:58:05
Also in:
asahi, b4-sent, linux-arm-kernel, lkml
Subsystem:
arm/apple machine support, the rest · Maintainers:
Sven Peter, Janne Grunau, Linus Torvalds
From: Janne Grunau <j@jannau.net> 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: Neal Gompa <neal@gompa.dev> Signed-off-by: Janne Grunau <j@jannau.net> --- arch/arm64/boot/dts/apple/t8103.dtsi | 76 ++++++++++++++++++++++++++++++++++++ 1 file changed, 76 insertions(+)
diff --git a/arch/arm64/boot/dts/apple/t8103.dtsi b/arch/arm64/boot/dts/apple/t8103.dtsi
index 9b0dad6b618444ac6b1c9735c50cccfc3965f947..c9b789a2ff7e1757930b3fc3682e734c1e4dbef9 100644
--- a/arch/arm64/boot/dts/apple/t8103.dtsi
+++ b/arch/arm64/boot/dts/apple/t8103.dtsi@@ -326,6 +326,20 @@ clkref: clock-ref { clock-output-names = "clkref"; }; + clk_120m: clock-120m { + compatible = "fixed-clock"; + #clock-cells = <0>; + clock-frequency = <120000000>; + clock-output-names = "clk_120m"; + }; + + 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.
@@ -441,6 +455,48 @@ fpwm1: pwm@235044000 { status = "disabled"; }; + spi0: spi@235100000 { + compatible = "apple,t8103-spi", "apple,spi"; + reg = <0x2 0x35100000 0x0 0x4000>; + interrupt-parent = <&aic>; + interrupts = <AIC_IRQ 614 IRQ_TYPE_LEVEL_HIGH>; + clocks = <&clk_200m>; + pinctrl-0 = <&spi0_pins>; + pinctrl-names = "default"; + power-domains = <&ps_spi0>; + #address-cells = <1>; + #size-cells = <0>; + status = "disabled"; + }; + + spi1: spi@235104000 { + compatible = "apple,t8103-spi", "apple,spi"; + reg = <0x2 0x35104000 0x0 0x4000>; + interrupt-parent = <&aic>; + interrupts = <AIC_IRQ 615 IRQ_TYPE_LEVEL_HIGH>; + clocks = <&clk_200m>; + pinctrl-0 = <&spi1_pins>; + pinctrl-names = "default"; + power-domains = <&ps_spi1>; + #address-cells = <1>; + #size-cells = <0>; + status = "disabled"; + }; + + spi3: spi@23510c000 { + compatible = "apple,t8103-spi", "apple,spi"; + reg = <0x2 0x3510c000 0x0 0x4000>; + interrupt-parent = <&aic>; + interrupts = <AIC_IRQ 617 IRQ_TYPE_LEVEL_HIGH>; + clocks = <&clk_120m>; + pinctrl-0 = <&spi3_pins>; + pinctrl-names = "default"; + power-domains = <&ps_spi3>; + #address-cells = <1>; + #size-cells = <0>; + status = "disabled"; + }; + serial0: serial@235200000 { compatible = "apple,s5l-uart"; reg = <0x2 0x35200000 0x0 0x1000>;
@@ -597,6 +653,26 @@ i2c4_pins: i2c4-pins { <APPLE_PINMUX(134, 1)>; }; + spi0_pins: spi0-pins { + pinmux = <APPLE_PINMUX(67, 1)>, /* CLK */ + <APPLE_PINMUX(68, 1)>, /* MOSI */ + <APPLE_PINMUX(69, 1)>; /* MISO */ + }; + + spi1_pins: spi1-pins { + pinmux = <APPLE_PINMUX(42, 1)>, + <APPLE_PINMUX(43, 1)>, + <APPLE_PINMUX(44, 1)>, + <APPLE_PINMUX(45, 1)>; + }; + + spi3_pins: spi3-pins { + pinmux = <APPLE_PINMUX(46, 1)>, + <APPLE_PINMUX(47, 1)>, + <APPLE_PINMUX(48, 1)>, + <APPLE_PINMUX(49, 1)>; + }; + pcie_pins: pcie-pins { pinmux = <APPLE_PINMUX(150, 1)>, <APPLE_PINMUX(151, 1)>,
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2.47.0