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From: Aswath Govindraju <a-govindraju@ti.com>
To: unlisted-recipients:; (no To-header on input)
Cc: Marc Kleine-Budde <mkl@pengutronix.de>,
	Kishon Vijay Abraham I <kishon@ti.com>,
	Aswath Govindraju <a-govindraju@ti.com>,
	Nishanth Menon <nm@ti.com>, Vignesh Raghavendra <vigneshr@ti.com>,
	Tero Kristo <kristo@kernel.org>, Rob Herring <robh+dt@kernel.org>,
	<linux-arm-kernel@lists.infradead.org>,
	<devicetree@vger.kernel.org>, <linux-kernel@vger.kernel.org>
Subject: [PATCH v5 6/6] arm64: dts: ti: k3-am642-evm/sk: Add support for main domain mcan nodes in EVM and disable them on SK
Date: Mon, 22 Nov 2021 19:11:58 +0530	[thread overview]
Message-ID: <20211122134159.29936-7-a-govindraju@ti.com> (raw)
In-Reply-To: <20211122134159.29936-1-a-govindraju@ti.com>

AM642 EVM has two CAN connecters brought out from the two MCAN instances in
the main domain through transceivers. Add device tree nodes for
transceivers and set the required properties in the mcan device tree nodes,
in EVM device tree file.

On AM642 SK there are no connectors brought out for CAN. Therefore, disable
the mcan device tree nodes in the SK device tree file.

Signed-off-by: Aswath Govindraju <a-govindraju@ti.com>
---
 arch/arm64/boot/dts/ti/k3-am642-evm.dts | 40 +++++++++++++++++++++++++
 arch/arm64/boot/dts/ti/k3-am642-sk.dts  |  8 +++++
 2 files changed, 48 insertions(+)

diff --git a/arch/arm64/boot/dts/ti/k3-am642-evm.dts b/arch/arm64/boot/dts/ti/k3-am642-evm.dts
index 6726c4c7c28c..e94ae178b1ae 100644
--- a/arch/arm64/boot/dts/ti/k3-am642-evm.dts
+++ b/arch/arm64/boot/dts/ti/k3-am642-evm.dts
@@ -184,6 +184,20 @@
 			};
 		};
 	};
+
+	transceiver1: can-phy0 {
+		compatible = "ti,tcan1042";
+		#phy-cells = <0>;
+		max-bitrate = <5000000>;
+		standby-gpios = <&exp1 8 GPIO_ACTIVE_HIGH>;
+	};
+
+	transceiver2: can-phy1 {
+		compatible = "ti,tcan1042";
+		#phy-cells = <0>;
+		max-bitrate = <5000000>;
+		standby-gpios = <&exp1 9 GPIO_ACTIVE_HIGH>;
+	};
 };
 
 &main_pmx0 {
@@ -294,6 +308,20 @@
 			AM64X_IOPAD(0x0270, PIN_INPUT, 0) /* (D18) ECAP0_IN_APWM_OUT */
 		>;
 	};
+
+	main_mcan0_pins_default: main-mcan0-pins-default {
+		pinctrl-single,pins = <
+			AM64X_IOPAD(0x0254, PIN_INPUT, 0) /* (B17) MCAN0_RX */
+			AM64X_IOPAD(0x0250, PIN_OUTPUT, 0) /* (A17) MCAN0_TX */
+		>;
+	};
+
+	main_mcan1_pins_default: main-mcan1-pins-default {
+		pinctrl-single,pins = <
+			AM64X_IOPAD(0x025c, PIN_INPUT, 0) /* (D17) MCAN1_RX */
+			AM64X_IOPAD(0x0258, PIN_OUTPUT, 0) /* (C17) MCAN1_TX */
+		>;
+	};
 };
 
 &main_uart0 {
@@ -638,3 +666,15 @@
 &icssg1_mdio {
 	status = "disabled";
 };
+
+&main_mcan0 {
+	pinctrl-names = "default";
+	pinctrl-0 = <&main_mcan0_pins_default>;
+	phys = <&transceiver1>;
+};
+
+&main_mcan1 {
+	pinctrl-names = "default";
+	pinctrl-0 = <&main_mcan1_pins_default>;
+	phys = <&transceiver2>;
+};
diff --git a/arch/arm64/boot/dts/ti/k3-am642-sk.dts b/arch/arm64/boot/dts/ti/k3-am642-sk.dts
index 6b04745147be..a9785bec12df 100644
--- a/arch/arm64/boot/dts/ti/k3-am642-sk.dts
+++ b/arch/arm64/boot/dts/ti/k3-am642-sk.dts
@@ -525,3 +525,11 @@
 &icssg1_mdio {
 	status = "disabled";
 };
+
+&main_mcan0 {
+	status = "disabled";
+};
+
+&main_mcan1 {
+	status = "disabled";
+};
-- 
2.17.1


  parent reply	other threads:[~2021-11-22 13:44 UTC|newest]

Thread overview: 14+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-11-22 13:41 [PATCH v5 0/6] CAN: Add support for CAN in AM65,J721e and AM64 Aswath Govindraju
2021-11-22 13:41 ` [PATCH v5 1/6] arm64: dts: ti: k3-am65-mcu: Add Support for MCAN Aswath Govindraju
2021-12-07 11:37   ` Apurva Nandan
2021-11-22 13:41 ` [PATCH v5 2/6] arm64: dts: ti: am654-base-board/am65-iot2050-common: Disable mcan nodes Aswath Govindraju
2021-12-07 13:19   ` Apurva Nandan
2021-11-22 13:41 ` [PATCH v5 3/6] arm64: dts: ti: k3-j721e: Add support for MCAN nodes Aswath Govindraju
2021-12-07 13:20   ` Apurva Nandan
2021-11-22 13:41 ` [PATCH v5 4/6] arm64: dts: ti: k3-j721e-common-proc-board: Add support for mcu and main mcan nodes Aswath Govindraju
2021-12-07 13:20   ` Apurva Nandan
2021-11-22 13:41 ` [PATCH v5 5/6] arm64: dts: ti: k3-am64-main: Add support for MCAN Aswath Govindraju
2021-12-07 13:21   ` Apurva Nandan
2021-11-22 13:41 ` Aswath Govindraju [this message]
2021-12-07 13:21   ` [PATCH v5 6/6] arm64: dts: ti: k3-am642-evm/sk: Add support for main domain mcan nodes in EVM and disable them on SK Apurva Nandan
2021-12-15  7:13 ` [PATCH v5 0/6] CAN: Add support for CAN in AM65,J721e and AM64 Vignesh Raghavendra

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