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| author | AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com> | 2022-09-02 11:11:52 +0300 |
|---|---|---|
| committer | Matthias Brugger <matthias.bgg@gmail.com> | 2022-09-13 19:59:01 +0300 |
| commit | 63ce81b224dd8033fd5f629fb4581a26eedd5797 (patch) | |
| tree | 82d04b942d8d7eee54c6550b656ff98771c73c9a /arch/arm64/boot/dts/mediatek | |
| parent | e775cc1a9b4fb9b7b62edc480642ebd21e3b81e1 (diff) | |
| download | linux-63ce81b224dd8033fd5f629fb4581a26eedd5797.tar.xz | |
arm64: dts: mediatek: cherry: Add Google Security Chip (GSC) TPM
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>
Diffstat (limited to 'arch/arm64/boot/dts/mediatek')
| -rw-r--r-- | arch/arm64/boot/dts/mediatek/mt8195-cherry.dtsi | 15 |
1 files changed, 15 insertions, 0 deletions
diff --git a/arch/arm64/boot/dts/mediatek/mt8195-cherry.dtsi b/arch/arm64/boot/dts/mediatek/mt8195-cherry.dtsi index 73f531f84fa2..a07e7fe66315 100644 --- a/arch/arm64/boot/dts/mediatek/mt8195-cherry.dtsi +++ b/arch/arm64/boot/dts/mediatek/mt8195-cherry.dtsi @@ -149,6 +149,14 @@ 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 @@ "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>; |