linux-kernel - [PATCH 4/6] arm64: dts: ti: k3-j721e-common-proc-board: Add support for mcu

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Message-ID: <20210720141642.24999-5-a-govindraju@ti.com>
Date:   Tue, 20 Jul 2021 19:46:40 +0530
From:   Aswath Govindraju <a-govindraju@...com>
To:     unlisted-recipients:; (no To-header on input)
CC:     <linux-arm-kernel@...ts.infradead.org>,
        <devicetree@...r.kernel.org>, <linux-kernel@...r.kernel.org>,
        Nishanth Menon <nm@...com>, Tero Kristo <kristo@...nel.org>,
        Rob Herring <robh+dt@...nel.org>,
        Marc Kleine-Budde <mkl@...gutronix.de>,
        Lokesh Vutla <lokeshvutla@...com>,
        Aswath Govindraju <a-govindraju@...com>
Subject: [PATCH 4/6] arm64: dts: ti: k3-j721e-common-proc-board: Add support for mcu_mcan nodes

From: Faiz Abbas <faiz_abbas@...com>

Add two MCAN nodes present on the common processor board and set a
maximum data rate of 5 Mbps. Disable all other nodes for now.

Signed-off-by: Faiz Abbas <faiz_abbas@...com>
Signed-off-by: Aswath Govindraju <a-govindraju@...com>
---
 .../dts/ti/k3-j721e-common-proc-board.dts     | 116 ++++++++++++++++++
 1 file changed, 116 insertions(+)

diff --git a/arch/arm64/boot/dts/ti/k3-j721e-common-proc-board.dts b/arch/arm64/boot/dts/ti/k3-j721e-common-proc-board.dts
index 8bd02d9e28ad..d40e282325c9 100644
--- a/arch/arm64/boot/dts/ti/k3-j721e-common-proc-board.dts
+++ b/arch/arm64/boot/dts/ti/k3-j721e-common-proc-board.dts
@@ -109,6 +109,25 @@
 			      "cpb-codec-scki",
 			      "cpb-codec-scki-48000", "cpb-codec-scki-44100";
 	};
+
+	transceiver1: can-phy0 {
+		compatible = "ti,tcan1043";
+		#phy-cells = <0>;
+		max-bitrate = <5000000>;
+		pinctrl-names = "default";
+		pinctrl-0 = <&mcu_mcan0_gpio_pins_default>;
+		standby-gpios = <&wkup_gpio0 54 GPIO_ACTIVE_LOW>;
+		enable-gpios = <&wkup_gpio0 0 GPIO_ACTIVE_HIGH>;
+	};
+
+	transceiver2: can-phy1 {
+		compatible = "ti,tcan1042";
+		#phy-cells = <0>;
+		max-bitrate = <5000000>;
+		pinctrl-names = "default";
+		pinctrl-0 = <&mcu_mcan1_gpio_pins_default>;
+		standby-gpios = <&wkup_gpio0 2 GPIO_ACTIVE_HIGH>;
+	};
 };
 
 &main_pmx0 {
@@ -249,6 +268,33 @@
 			J721E_WKUP_IOPAD(0x0088, PIN_INPUT, 0) /* MCU_MDIO0_MDIO */
 		>;
 	};
+
+	mcu_mcan0_pins_default: mcu-mcan0-pins-default {
+		pinctrl-single,pins = <
+			J721E_WKUP_IOPAD(0xac, PIN_INPUT, 0) /* (C29) MCU_MCAN0_RX */
+			J721E_WKUP_IOPAD(0xa8, PIN_OUTPUT, 0) /* (D29) MCU_MCAN0_TX */
+		>;
+	};
+
+	mcu_mcan0_gpio_pins_default: mcu-mcan0-gpio-pins-default {
+		pinctrl-single,pins = <
+			J721E_WKUP_IOPAD(0xb0, PIN_INPUT, 7) /* (F26) WKUP_GPIO0_0 */
+			J721E_WKUP_IOPAD(0x98, PIN_INPUT, 7) /* (E28) MCU_SPI0_D1.WKUP_GPIO0_54 */
+		>;
+	};
+
+	mcu_mcan1_pins_default: mcu-mcan1-pins-default {
+		pinctrl-single,pins = <
+			J721E_WKUP_IOPAD(0xc4, PIN_INPUT, 0) /* (G24) WKUP_GPIO0_5.MCU_MCAN1_RX */
+			J721E_WKUP_IOPAD(0xc0, PIN_OUTPUT, 0) /* (G25) WKUP_GPIO0_4.MCU_MCAN1_TX */
+		>;
+	};
+
+	mcu_mcan1_gpio_pins_default: mcu-mcan1-gpio-pins-default {
+		pinctrl-single,pins = <
+			J721E_WKUP_IOPAD(0xb8, PIN_INPUT, 7) /* (F28) WKUP_GPIO0_2 */
+		>;
+	};
 };
 
 &wkup_uart0 {
@@ -770,3 +816,73 @@
 &icssg1_mdio {
 	status = "disabled";
 };
+
+&mcu_mcan0 {
+	status = "okay";
+	pinctrl-names = "default";
+	pinctrl-0 = <&mcu_mcan0_pins_default>;
+	phys = <&transceiver1>;
+};
+
+&mcu_mcan1 {
+	status = "okay";
+	pinctrl-names = "default";
+	pinctrl-0 = <&mcu_mcan1_pins_default>;
+	phys = <&transceiver2>;
+};
+
+&main_mcan0 {
+	status = "disabled";
+};
+
+&main_mcan1 {
+	status = "disabled";
+};
+
+&main_mcan2 {
+	status = "disabled";
+};
+
+&main_mcan3 {
+	status = "disabled";
+};
+
+&main_mcan4 {
+	status = "disabled";
+};
+
+&main_mcan5 {
+	status = "disabled";
+};
+
+&main_mcan6 {
+	status = "disabled";
+};
+
+&main_mcan7 {
+	status = "disabled";
+};
+
+&main_mcan8 {
+	status = "disabled";
+};
+
+&main_mcan9 {
+	status = "disabled";
+};
+
+&main_mcan10 {
+	status = "disabled";
+};
+
+&main_mcan11 {
+	status = "disabled";
+};
+
+&main_mcan12 {
+	status = "disabled";
+};
+
+&main_mcan13 {
+	status = "disabled";
+};
-- 
2.17.1