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Mon, 26 Jul 2021 05:10:42 -0500 Received: from DLEE108.ent.ti.com (157.170.170.38) by DLEE104.ent.ti.com (157.170.170.34) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256_P256) id 15.1.2176.2; Mon, 26 Jul 2021 05:10:42 -0500 Received: from lelv0326.itg.ti.com (10.180.67.84) by DLEE108.ent.ti.com (157.170.170.38) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256_P256) id 15.1.2176.2 via Frontend Transport; Mon, 26 Jul 2021 05:10:42 -0500 Received: from gsaswath-HP-ProBook-640-G5.dal.design.ti.com (ileax41-snat.itg.ti.com [10.172.224.153]) by lelv0326.itg.ti.com (8.15.2/8.15.2) with ESMTP id 16QAACRj067730; Mon, 26 Jul 2021 05:10:38 -0500 From: Aswath Govindraju To: CC: , , , Nishanth Menon , Tero Kristo , Rob Herring , Marc Kleine-Budde , Lokesh Vutla , Faiz Abbas , Aswath Govindraju 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 Message-ID: <20210726101012.26983-7-a-govindraju@ti.com> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20210726101012.26983-1-a-govindraju@ti.com> References: <20210726101012.26983-1-a-govindraju@ti.com> MIME-Version: 1.0 X-EXCLAIMER-MD-CONFIG: e1e8a2fd-e40a-4ac6-ac9b-f7e9cc9ee180 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20210726_031044_087973_958A6DC2 X-CRM114-Status: GOOD ( 12.19 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org 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 --- 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"; +};