From: Janne Grunau <j@xxxxxxxxxx>
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.
Signed-off-by: Janne Grunau <j@xxxxxxxxxx>
---
arch/arm64/boot/dts/apple/t8112.dtsi | 44 +++++++++++++++++++++++++++++++++++-
1 file changed, 43 insertions(+), 1 deletion(-)
diff --git a/arch/arm64/boot/dts/apple/t8112.dtsi b/arch/arm64/boot/dts/apple/t8112.dtsi
index 1666e6ab250bc0be9b8318e3c8fc903ccd3f3760..58d88f1ef92a32061765bd3b569fdae0255dcd7e 100644
--- a/arch/arm64/boot/dts/apple/t8112.dtsi
+++ b/arch/arm64/boot/dts/apple/t8112.dtsi
@@ -349,6 +349,13 @@ 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.
@@ -467,6 +474,34 @@ fpwm1: pwm@235044000 {
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 @@ i2c4_pins: i2c4-pins {
<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)>,
--
2.47.0
