diff options
| author | Janne Grunau <j@jannau.net> | 2024-12-03 08:57:59 +0100 |
|---|---|---|
| committer | Sven Peter <sven@svenpeter.dev> | 2025-02-18 17:44:19 +0100 |
| commit | 0a6d561c7e46bf46b886af209e8ebedb6d500680 (patch) | |
| tree | 4c899b3b4462a9e976e81e24ec7a6cae2d8d793e | |
| parent | 556cd4bbb45bb5a73042c02b7e5c982112a6ed1f (diff) | |
arm64: dts: apple: t8112: 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: Neal Gompa <neal@gompa.dev>
Signed-off-by: Janne Grunau <j@jannau.net>
Link: https://lore.kernel.org/r/20241203-asahi-spi-dt-v2-3-cd68bfaf0c84@jannau.net
Signed-off-by: Sven Peter <sven@svenpeter.dev>
| -rw-r--r-- | arch/arm64/boot/dts/apple/t8112.dtsi | 44 |
1 files changed, 43 insertions, 1 deletions
diff --git a/arch/arm64/boot/dts/apple/t8112.dtsi b/arch/arm64/boot/dts/apple/t8112.dtsi index 1666e6ab250b..58d88f1ef92a 100644 --- a/arch/arm64/boot/dts/apple/t8112.dtsi +++ b/arch/arm64/boot/dts/apple/t8112.dtsi @@ -349,6 +349,13 @@ 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. @@ -467,6 +474,34 @@ status = "disabled"; }; + spi1: spi@235104000 { + compatible = "apple,t8112-spi", "apple,spi"; + reg = <0x2 0x35104000 0x0 0x4000>; + interrupt-parent = <&aic>; + interrupts = <AIC_IRQ 749 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,t8112-spi", "apple,spi"; + reg = <0x2 0x3510c000 0x0 0x4000>; + interrupt-parent = <&aic>; + interrupts = <AIC_IRQ 751 IRQ_TYPE_LEVEL_HIGH>; + clocks = <&clkref>; + 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>; @@ -626,13 +661,20 @@ <APPLE_PINMUX(130, 1)>; }; - spi3_pins: spi3-pins { + spi1_pins: spi1-pins { pinmux = <APPLE_PINMUX(46, 1)>, <APPLE_PINMUX(47, 1)>, <APPLE_PINMUX(48, 1)>, <APPLE_PINMUX(49, 1)>; }; + spi3_pins: spi3-pins { + pinmux = <APPLE_PINMUX(93, 1)>, + <APPLE_PINMUX(94, 1)>, + <APPLE_PINMUX(95, 1)>, + <APPLE_PINMUX(96, 1)>; + }; + pcie_pins: pcie-pins { pinmux = <APPLE_PINMUX(162, 1)>, <APPLE_PINMUX(163, 1)>, |