github-mirror/linux
1
0
Fork 0
mirror of https://github.com/torvalds/linux.git synced 2026-05-27 16:44:58 +02:00
Code Issues Actions Packages Projects Releases Wiki Activity Graph

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

Browse Source 
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-v2-4-cd68bfaf0c84@jannau.net
Signed-off-by: Sven Peter <sven@svenpeter.dev>
This commit is contained in:
Janne Grunau 2024-12-03 08:58:00 +01:00 committed by Sven Peter
parent 0a6d561c7e
commit d08e455a86
3 changed files with 49 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

7
arch/arm64/boot/dts/apple/t600x-common.dtsi
View File

@ -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.

28
arch/arm64/boot/dts/apple/t600x-die0.dtsi
View File

@ -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>;

14
arch/arm64/boot/dts/apple/t600x-gpio-pins.dtsi
View File

@ -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)>,