Scarlet and Bob use the Google-developed cr50 chip to do things like TPM and closed-case-debugging. Add the nodes describing the cr50 and its spi-connection. Signed-off-by: Heiko Stuebner <heiko@xxxxxxxxx> --- The last activity on upstreaming the cr50 happened in 2016 it seems [0]. And while I hope that this will continue at some point, I've split this out of the patches adding Gru-Bob and -Scarlet devicetrees to the mainline kernel and am putting this out here, so I can keep track of it and maybe inspire [= prod ;-) ] someone from CrOS to resume upstreaming the driver part ;-) . [0] https://patchwork.kernel.org/patch/9251895/ arch/arm64/boot/dts/rockchip/rk3399-gru-bob.dts | 10 ++++++++++ arch/arm64/boot/dts/rockchip/rk3399-gru-scarlet.dtsi | 10 ++++++++++ 2 files changed, 20 insertions(+) diff --git a/arch/arm64/boot/dts/rockchip/rk3399-gru-bob.dts b/arch/arm64/boot/dts/rockchip/rk3399-gru-bob.dts index 1ee0dc0d9f10..a16c5afe1636 100644 --- a/arch/arm64/boot/dts/rockchip/rk3399-gru-bob.dts +++ b/arch/arm64/boot/dts/rockchip/rk3399-gru-bob.dts @@ -68,6 +68,16 @@ &spi0 { status = "okay"; + + cr50@0 { + compatible = "google,cr50"; + reg = <0>; + interrupt-parent = <&gpio0>; + interrupts = <5 IRQ_TYPE_EDGE_RISING>; + pinctrl-names = "default"; + pinctrl-0 = <&h1_int_od_l>; + spi-max-frequency = <800000>; + }; }; &pinctrl { diff --git a/arch/arm64/boot/dts/rockchip/rk3399-gru-scarlet.dtsi b/arch/arm64/boot/dts/rockchip/rk3399-gru-scarlet.dtsi index fc50b3ef758c..7a93d0774108 100644 --- a/arch/arm64/boot/dts/rockchip/rk3399-gru-scarlet.dtsi +++ b/arch/arm64/boot/dts/rockchip/rk3399-gru-scarlet.dtsi @@ -435,6 +435,16 @@ camera: &i2c7 { &spi2 { status = "okay"; + + cr50@0 { + compatible = "google,cr50"; + reg = <0>; + interrupt-parent = <&gpio1>; + interrupts = <17 IRQ_TYPE_EDGE_RISING>; + pinctrl-names = "default"; + pinctrl-0 = <&h1_int_od_l>; + spi-max-frequency = <800000>; + }; }; &wake_on_bt { -- 2.17.0 _______________________________________________ Linux-rockchip mailing list Linux-rockchip@xxxxxxxxxxxxxxxxxxx http://lists.infradead.org/mailman/listinfo/linux-rockchip
