linux-kernel.vger.kernel.org archive mirror
 help / color / mirror / Atom feed
From: Aswath Govindraju <a-govindraju@ti.com>
To: unlisted-recipients:; (no To-header on input)
Cc: <linux-arm-kernel@lists.infradead.org>,
	<devicetree@vger.kernel.org>, <linux-kernel@vger.kernel.org>,
	Nishanth Menon <nm@ti.com>, Tero Kristo <kristo@kernel.org>,
	Rob Herring <robh+dt@kernel.org>,
	Marc Kleine-Budde <mkl@pengutronix.de>,
	Lokesh Vutla <lokeshvutla@ti.com>, Faiz Abbas <faiz_abbas@ti.com>,
	Aswath Govindraju <a-govindraju@ti.com>
Subject: [PATCH v2 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, 26 Jul 2021 15:40:12 +0530	[thread overview]
Message-ID: <20210726101012.26983-7-a-govindraju@ti.com> (raw)
In-Reply-To: <20210726101012.26983-1-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 030712221188..1c26ca41e6a5 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 {
@@ -288,6 +302,20 @@
 			AM64X_IOPAD(0x0008, PIN_INPUT, 0) /* (N19) OSPI0_DQS */
 		>;
 	};
+
+	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 {
@@ -574,3 +602,15 @@
 	num-lanes = <1>;
 	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 d3aa2901e6fd..15cde862f62c 100644
--- a/arch/arm64/boot/dts/ti/k3-am642-sk.dts
+++ b/arch/arm64/boot/dts/ti/k3-am642-sk.dts
@@ -453,3 +453,11 @@
 &pcie0_ep {
 	status = "disabled";
 };
+
+&main_mcan0 {
+	status = "disabled";
+};
+
+&main_mcan1 {
+	status = "disabled";
+};
-- 
2.17.1


  parent reply	other threads:[~2021-07-26 10:11 UTC|newest]

Thread overview: 15+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-07-26 10:10 [PATCH v2 0/6] CAN: Add support for CAN in AM65,J721e and AM64 Aswath Govindraju
2021-07-26 10:10 ` [PATCH v2 1/6] arm64: dts: ti: k3-am65-mcu: Add Support for MCAN Aswath Govindraju
2021-08-02 12:59   ` Marc Kleine-Budde
2021-07-26 10:10 ` [PATCH v2 2/6] arm64: dts: ti: am654-base-board: Disable mcan nodes Aswath Govindraju
2021-07-26 10:10 ` [PATCH v2 3/6] arm64: dts: ti: k3-j721e: Add support for MCAN nodes Aswath Govindraju
2021-07-26 10:10 ` [PATCH v2 4/6] arm64: dts: ti: k3-j721e-common-proc-board: Add support for mcu_mcan nodes Aswath Govindraju
2021-07-26 10:10 ` [PATCH v2 5/6] arm64: dts: ti: k3-am64-main: Add support for MCAN Aswath Govindraju
2021-07-26 10:10 ` Aswath Govindraju [this message]
2021-07-28  5:19 ` [PATCH v2 0/6] CAN: Add support for CAN in AM65,J721e and AM64 Aswath Govindraju
2021-07-28  7:26   ` Marc Kleine-Budde
2021-08-02 12:45 ` Nishanth Menon
2021-08-05 12:32   ` Aswath Govindraju
2021-08-05 12:40     ` Jan Kiszka
2021-08-05 12:44       ` Aswath Govindraju
2021-08-05 12:49         ` Jan Kiszka

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=20210726101012.26983-7-a-govindraju@ti.com \
    --to=a-govindraju@ti.com \
    --cc=devicetree@vger.kernel.org \
    --cc=faiz_abbas@ti.com \
    --cc=kristo@kernel.org \
    --cc=linux-arm-kernel@lists.infradead.org \
    --cc=linux-kernel@vger.kernel.org \
    --cc=lokeshvutla@ti.com \
    --cc=mkl@pengutronix.de \
    --cc=nm@ti.com \
    --cc=robh+dt@kernel.org \
    --subject='Re: [PATCH v2 6/6] arm64: dts: ti: k3-am642-evm/sk: Add support for main domain mcan nodes in EVM and disable them on SK' \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link

This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).