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arm64: dts: mediatek: cherry: Add Google Security Chip (GSC) TPM

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Add support for the Cr50 Google Security Chip (GSC) found on this
platform on I2C3 to support TPM and to also use it as an entropy
source for the kernel.

Signed-off-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
Link: https://lore.kernel.org/r/20220902081156.38526-4-angelogioacchino.delregno@collabora.com
Signed-off-by: Matthias Brugger <matthias.bgg@gmail.com>
This commit is contained in:
AngeloGioacchino Del Regno
2022-09-02 10:11:52 +02:00
committed by Matthias Brugger
parent e775cc1a9b
commit 63ce81b224
1 changed files with 15 additions and 0 deletions
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15
arch/arm64/boot/dts/mediatek/mt8195-cherry.dtsi
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@@ -149,6 +149,14 @@ &i2c3 {
clock-frequency = <400000>;
pinctrl-names = "default";
pinctrl-0 = <&i2c3_pins>;
tpm@50 {
compatible = "google,cr50";
reg = <0x50>;
interrupts-extended = <&pio 88 IRQ_TYPE_EDGE_FALLING>;
pinctrl-names = "default";
pinctrl-0 = <&cr50_int>;
};
};
&i2c4 {
@@ -426,6 +434,13 @@ &pio {
"AP_SPI_FLASH_MOSI",
"AP_SPI_FLASH_MISO";
cr50_int: cr50-irq-default-pins {
pins-gsc-ap-int-odl {
pinmux = <PINMUX_GPIO88__FUNC_GPIO88>;
input-enable;
};
};
cros_ec_int: cros-ec-irq-default-pins {
pins-ec-ap-int-odl {
pinmux = <PINMUX_GPIO4__FUNC_GPIO4>;