linux-kernel - [PATCH v2] arm64: dts: freescale: imx8mp-phyboard-pollux: Add and enable TPM

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Message-ID: <20240807-imx8mp-tpm-v2-1-d43f1e8f70ac@phytec.de>
Date: Wed, 7 Aug 2024 17:18:45 +0200
From: Benjamin Hahn <B.Hahn@...tec.de>
To: Rob Herring <robh@...nel.org>, Krzysztof Kozlowski <krzk+dt@...nel.org>,
	Conor Dooley <conor+dt@...nel.org>, Shawn Guo <shawnguo@...nel.org>, Sascha
 Hauer <s.hauer@...gutronix.de>, Pengutronix Kernel Team
	<kernel@...gutronix.de>, Fabio Estevam <festevam@...il.com>, Teresa Remmet
	<t.remmet@...tec.de>
CC: <devicetree@...r.kernel.org>, <imx@...ts.linux.dev>,
	<linux-arm-kernel@...ts.infradead.org>, <linux-kernel@...r.kernel.org>,
	Benjamin Hahn <B.Hahn@...tec.de>
Subject: [PATCH v2] arm64: dts: freescale: imx8mp-phyboard-pollux: Add and
 enable TPM

Add support for TPM for phyBOARD Pollux.

Signed-off-by: Benjamin Hahn <B.Hahn@...tec.de>
---
Changes in v2:
- renamed tpm node to tpm@0
- removed num-cs
- cleanup pinctrl
- Link to v1: https://lore.kernel.org/r/20240805-imx8mp-tpm-v1-1-1e89f0268999@phytec.de
---
 .../dts/freescale/imx8mp-phyboard-pollux-rdk.dts   | 26 ++++++++++++++++++++++
 1 file changed, 26 insertions(+)

diff --git a/arch/arm64/boot/dts/freescale/imx8mp-phyboard-pollux-rdk.dts b/arch/arm64/boot/dts/freescale/imx8mp-phyboard-pollux-rdk.dts
index 00a240484c25..0e8200413557 100644
--- a/arch/arm64/boot/dts/freescale/imx8mp-phyboard-pollux-rdk.dts
+++ b/arch/arm64/boot/dts/freescale/imx8mp-phyboard-pollux-rdk.dts
@@ -103,6 +103,23 @@ reg_vcc_3v3_sw: regulator-vcc-3v3-sw {
 	};
 };
 
+/* TPM */
+&ecspi1 {
+	#address-cells = <1>;
+	#size-cells = <0>;
+	cs-gpios = <&gpio5 9 GPIO_ACTIVE_LOW>;
+	pinctrl-names = "default";
+	pinctrl-0 = <&pinctrl_ecspi1>;
+	status = "okay";
+
+	tpm: tpm@0 {
+		compatible = "infineon,slb9670", "tcg,tpm_tis-spi";
+		reg = <0>;
+		spi-max-frequency = <38000000>;
+		status = "okay";
+	};
+};
+
 &eqos {
 	pinctrl-names = "default";
 	pinctrl-0 = <&pinctrl_eqos>;
@@ -300,6 +317,15 @@ &gpio4 {
 };
 
 &iomuxc {
+	pinctrl_ecspi1: ecspi1grp {
+		fsl,pins = <
+			MX8MP_IOMUXC_ECSPI1_MISO__ECSPI1_MISO   0x80
+			MX8MP_IOMUXC_ECSPI1_MOSI__ECSPI1_MOSI   0x80
+			MX8MP_IOMUXC_ECSPI1_SCLK__ECSPI1_SCLK   0x80
+			MX8MP_IOMUXC_ECSPI1_SS0__GPIO5_IO09     0x00
+		>;
+	};
+
 	pinctrl_eqos: eqosgrp {
 		fsl,pins = <
 			MX8MP_IOMUXC_ENET_MDC__ENET_QOS_MDC			0x2

---
base-commit: 17712b7ea0756799635ba159cc773082230ed028
change-id: 20240805-imx8mp-tpm-3df607b1f5f1

Best regards,
-- 
Benjamin Hahn <B.Hahn@...tec.de>