Add the TPM device found on the GW72xx revision F PCB.

This hangs off of SPI2, uses gpio1_10 as a CS and gpio1_11 as RST#.

Signed-off-by: Tim Harvey tharvey@gateworks.com --- arch/arm/dts/imx8mm-venice-gw72xx-0x-u-boot.dtsi | 7 +++++++ arch/arm/dts/imx8mm-venice-gw72xx.dtsi | 10 +++++++++- 2 files changed, 16 insertions(+), 1 deletion(-)

diff --git a/arch/arm/dts/imx8mm-venice-gw72xx-0x-u-boot.dtsi b/arch/arm/dts/imx8mm-venice-gw72xx-0x-u-boot.dtsi index 92e44d4ba96b..31f9d47bced8 100644 --- a/arch/arm/dts/imx8mm-venice-gw72xx-0x-u-boot.dtsi +++ b/arch/arm/dts/imx8mm-venice-gw72xx-0x-u-boot.dtsi @@ -39,6 +39,13 @@ gpios = <9 GPIO_ACTIVE_HIGH>; line-name = "dio1"; }; + + tpm_rst { + gpio-hog; + output-high; + gpios = <11 GPIO_ACTIVE_HIGH>; + line-name = "tpm_rst#"; + }; };

&gpio4 { diff --git a/arch/arm/dts/imx8mm-venice-gw72xx.dtsi b/arch/arm/dts/imx8mm-venice-gw72xx.dtsi index 41d0de6a7027..97ed34a3c586 100644 --- a/arch/arm/dts/imx8mm-venice-gw72xx.dtsi +++ b/arch/arm/dts/imx8mm-venice-gw72xx.dtsi @@ -84,8 +84,15 @@ &ecspi2 { pinctrl-names = "default"; pinctrl-0 = <&pinctrl_spi2>; - cs-gpios = <&gpio5 13 GPIO_ACTIVE_LOW>; + cs-gpios = <&gpio5 13 GPIO_ACTIVE_LOW>, + <&gpio1 10 GPIO_ACTIVE_LOW>; status = "okay"; + + tpm@1 { + compatible = "tcg,tpm_tis-spi"; + reg = <0x1>; + spi-max-frequency = <36000000>; + }; };

&gpio1 { @@ -314,6 +321,7 @@ MX8MM_IOMUXC_ECSPI2_MOSI_ECSPI2_MOSI 0xd6 MX8MM_IOMUXC_ECSPI2_MISO_ECSPI2_MISO 0xd6 MX8MM_IOMUXC_ECSPI2_SS0_GPIO5_IO13 0xd6 + MX8MM_IOMUXC_GPIO1_IO10_GPIO1_IO10 0xd6 >; };