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Miller" , Eric Dumazet , Jakub Kicinski , Paolo Abeni , Schuyler Patton , Nishanth Menon , Vignesh Raghavendra , Tero Kristo , Rob Herring , Krzysztof Kozlowski , Oliver Hartkopp , Judith Mendez , , , , , Subject: [PATCH 3/4] DO_NOT_MERGE arm64: dts: ti: Add AM62x MCAN MAIN domain transceiver overlay Date: Wed, 19 Apr 2023 17:33:22 -0500 Message-ID: <20230419223323.20384-4-jm@ti.com> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20230419223323.20384-1-jm@ti.com> References: <20230419223323.20384-1-jm@ti.com> MIME-Version: 1.0 X-EXCLAIMER-MD-CONFIG: e1e8a2fd-e40a-4ac6-ac9b-f7e9cc9ee180 X-Spam-Status: No, score=-4.4 required=5.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,DKIM_VALID_EF,RCVD_IN_DNSWL_MED, SPF_HELO_PASS,SPF_PASS,T_SCC_BODY_TEXT_LINE,URIBL_BLOCKED autolearn=ham autolearn_force=no version=3.4.6 X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on lindbergh.monkeyblade.net Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org X-getmail-retrieved-from-mailbox: =?utf-8?q?INBOX?= X-GMAIL-THRID: =?utf-8?q?1763648829090340689?= X-GMAIL-MSGID: =?utf-8?q?1763648829090340689?= Add an overlay for main domain MCAN on AM62x SK. The AM62x SK board does not have on-board CAN transceiver so instead of changing the DTB permanently, add an overlay to enable MAIN domain MCAN and support for 1 CAN transceiver. Signed-off-by: Judith Mendez --- arch/arm64/boot/dts/ti/Makefile | 2 ++ .../boot/dts/ti/k3-am625-sk-mcan-main.dtso | 35 +++++++++++++++++++ 2 files changed, 37 insertions(+) create mode 100644 arch/arm64/boot/dts/ti/k3-am625-sk-mcan-main.dtso diff --git a/arch/arm64/boot/dts/ti/Makefile b/arch/arm64/boot/dts/ti/Makefile index c83c9d772b81..abe15e76b614 100644 --- a/arch/arm64/boot/dts/ti/Makefile +++ b/arch/arm64/boot/dts/ti/Makefile @@ -9,8 +9,10 @@ # alphabetically. # Boards with AM62x SoC +k3-am625-sk-mcan-dtbs := k3-am625-sk.dtb k3-am625-sk-mcan-main.dtbo dtb-$(CONFIG_ARCH_K3) += k3-am625-beagleplay.dtb dtb-$(CONFIG_ARCH_K3) += k3-am625-sk.dtb +dtb-$(CONFIG_ARCH_K3) += k3-am625-sk-mcan.dtb dtb-$(CONFIG_ARCH_K3) += k3-am62-lp-sk.dtb # Boards with AM62Ax SoC diff --git a/arch/arm64/boot/dts/ti/k3-am625-sk-mcan-main.dtso b/arch/arm64/boot/dts/ti/k3-am625-sk-mcan-main.dtso new file mode 100644 index 000000000000..72b68fd51121 --- /dev/null +++ b/arch/arm64/boot/dts/ti/k3-am625-sk-mcan-main.dtso @@ -0,0 +1,35 @@ +// SPDX-License-Identifier: GPL-2.0 +/** + * DT overlay for MCAN transceiver in main domain on AM625 SK + * + * Copyright (C) 2022 Texas Instruments Incorporated - https://www.ti.com/ + */ + +/dts-v1/; +/plugin/; + +#include + +&{/} { + transceiver1: can-phy0 { + compatible = "ti,tcan1042"; + #phy-cells = <0>; + max-bitrate = <5000000>; + }; +}; + +&main_pmx0 { + main_mcan0_pins_default: main-mcan0-pins-default { + pinctrl-single,pins = < + AM62X_IOPAD(0x1dc, PIN_INPUT, 0) /* (E15) MCAN0_RX */ + AM62X_IOPAD(0x1d8, PIN_OUTPUT, 0) /* (C15) MCAN0_TX */ + >; + }; +}; + +&main_mcan0 { + status = "okay"; + pinctrl-names = "default"; + pinctrl-0 = <&main_mcan0_pins_default>; + phys = <&transceiver1>; +};