[PATCH] arm: dts: imx8mp-venice-gw73xx: add TPM device

Tim Harvey tharvey at gateworks.com
Wed Oct 18 20:33:52 CEST 2023


Add the TPM device found on the GW73xx 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 at gateworks.com>
---
 arch/arm/dts/imx8mp-venice-gw73xx-2x-u-boot.dtsi | 9 +++++++++
 arch/arm/dts/imx8mp-venice-gw73xx.dtsi           | 9 ++++++++-
 2 files changed, 17 insertions(+), 1 deletion(-)

diff --git a/arch/arm/dts/imx8mp-venice-gw73xx-2x-u-boot.dtsi b/arch/arm/dts/imx8mp-venice-gw73xx-2x-u-boot.dtsi
index 70433c073293..4d0e9a1e67c5 100644
--- a/arch/arm/dts/imx8mp-venice-gw73xx-2x-u-boot.dtsi
+++ b/arch/arm/dts/imx8mp-venice-gw73xx-2x-u-boot.dtsi
@@ -10,6 +10,15 @@
 	reset-post-delay-us = <300000>;
 };
 
+&gpio1 {
+	tpm_rst {
+		gpio-hog;
+		output-high;
+		gpios = <11 GPIO_ACTIVE_HIGH>;
+		line-name = "tpm_rst#";
+	};
+};
+
 &gpio4 {
 	dio_1 {
 		gpio-hog;
diff --git a/arch/arm/dts/imx8mp-venice-gw73xx.dtsi b/arch/arm/dts/imx8mp-venice-gw73xx.dtsi
index 1c05398c862c..88c3c006fa20 100644
--- a/arch/arm/dts/imx8mp-venice-gw73xx.dtsi
+++ b/arch/arm/dts/imx8mp-venice-gw73xx.dtsi
@@ -95,8 +95,14 @@
 &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 at 1 {
+		compatible = "tcg,tpm_tis-spi";
+		reg = <0x1>;
+		spi-max-frequency = <36000000>;
+	};
 };
 
 &gpio4 {
@@ -327,6 +333,7 @@
 			MX8MP_IOMUXC_ECSPI2_MOSI__ECSPI2_MOSI	0x140
 			MX8MP_IOMUXC_ECSPI2_MISO__ECSPI2_MISO	0x140
 			MX8MP_IOMUXC_ECSPI2_SS0__GPIO5_IO13	0x140
+			MX8MP_IOMUXC_GPIO1_IO10__GPIO1_IO10	0x140
 		>;
 	};
 
-- 
2.25.1



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