From nobody Sun Feb 8 12:19:54 2026 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 521BAC7EE32 for ; Fri, 26 May 2023 16:55:27 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S237563AbjEZQz0 (ORCPT ); Fri, 26 May 2023 12:55:26 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:51012 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S237500AbjEZQzV (ORCPT ); Fri, 26 May 2023 12:55:21 -0400 Received: from lelv0142.ext.ti.com (lelv0142.ext.ti.com [198.47.23.249]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 7CCB1135; Fri, 26 May 2023 09:55:19 -0700 (PDT) Received: from fllv0035.itg.ti.com ([10.64.41.0]) by lelv0142.ext.ti.com (8.15.2/8.15.2) with ESMTP id 34QGt8Em062756; Fri, 26 May 2023 11:55:08 -0500 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=ti.com; s=ti-com-17Q1; t=1685120108; bh=1Rp/YGPWQR5raUvf1gwaPCzH4H0z7g5XN7OjXo/G8W4=; h=From:To:CC:Subject:Date; b=IDp9399ehTmiUkuTEDPRKRTS2MYH742D9SyvZO35CdYx0Au7rXB95MQJk0w3VA6qq n9gGwxW/xOTRZ+T6GzXHHXUvJ4IbRpqWsIjsS2vmzKOPrRKYT4TE6CRn62tD75Cvla i9ug38lDcyVlq4321R46wCIke38sAvHY+xW4JSHo= Received: from DFLE106.ent.ti.com (dfle106.ent.ti.com [10.64.6.27]) by fllv0035.itg.ti.com (8.15.2/8.15.2) with ESMTPS id 34QGt8Nm120452 (version=TLSv1.2 cipher=AES256-GCM-SHA384 bits=256 verify=FAIL); Fri, 26 May 2023 11:55:08 -0500 Received: from DFLE111.ent.ti.com (10.64.6.32) by DFLE106.ent.ti.com (10.64.6.27) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256_P256) id 15.1.2507.23; Fri, 26 May 2023 11:55:08 -0500 Received: from lelv0327.itg.ti.com (10.180.67.183) by DFLE111.ent.ti.com (10.64.6.32) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256_P256) id 15.1.2507.23 via Frontend Transport; Fri, 26 May 2023 11:55:08 -0500 Received: from localhost (ileaxei01-snat2.itg.ti.com [10.180.69.6]) by lelv0327.itg.ti.com (8.15.2/8.15.2) with ESMTP id 34QGt6h0021277; Fri, 26 May 2023 11:55:07 -0500 From: Bhavya Kapoor To: , , CC: , , , , , , , Subject: [PATCH v3] arm64: dts: ti: k3-j721s2: Add support for CAN instances 3 and 5 in main domain Date: Fri, 26 May 2023 22:25:05 +0530 Message-ID: <20230526165505.45172-1-b-kapoor@ti.com> X-Mailer: git-send-email 2.39.2 MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable X-EXCLAIMER-MD-CONFIG: e1e8a2fd-e40a-4ac6-ac9b-f7e9cc9ee180 Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Type: text/plain; charset="utf-8" CAN instances 3 and 5 in the main domain are brought on the common processor board through header J27 and J28. The CAN High and Low lines from the SoC are routed through a mux on the SoM. The select lines need to be set for the CAN signals to get connected to the transceivers on the common processor board. Threfore, add respective mux, transceiver dt nodes to add support for these CAN instances. Signed-off-by: Bhavya Kapoor Reviewed-by: Udit Kumar =20 --- Changelog v2->v3: Removed tiL6.1 subject prefix Link to v2 : https://lore.kernel.org/all/20230523085021.22524-1-b-kapoor@ti= .com/ .../dts/ti/k3-j721s2-common-proc-board.dts | 46 +++++++++++++++++++ arch/arm64/boot/dts/ti/k3-j721s2-som-p0.dtsi | 12 +++++ 2 files changed, 58 insertions(+) diff --git a/arch/arm64/boot/dts/ti/k3-j721s2-common-proc-board.dts b/arch/= arm64/boot/dts/ti/k3-j721s2-common-proc-board.dts index a7aa6cf08acd..f07663bbea16 100644 --- a/arch/arm64/boot/dts/ti/k3-j721s2-common-proc-board.dts +++ b/arch/arm64/boot/dts/ti/k3-j721s2-common-proc-board.dts @@ -27,6 +27,8 @@ aliases { can0 =3D &main_mcan16; can1 =3D &mcu_mcan0; can2 =3D &mcu_mcan1; + can3 =3D &main_mcan3; + can4 =3D &main_mcan5; }; =20 evm_12v0: fixedregulator-evm12v0 { @@ -107,6 +109,22 @@ transceiver2: can-phy2 { standby-gpios =3D <&wkup_gpio0 2 GPIO_ACTIVE_HIGH>; }; =20 + transceiver3: can-phy3 { + compatible =3D "ti,tcan1043"; + #phy-cells =3D <0>; + max-bitrate =3D <5000000>; + standby-gpios =3D <&exp2 7 GPIO_ACTIVE_LOW>; + enable-gpios =3D <&exp2 6 GPIO_ACTIVE_HIGH>; + mux-states =3D <&mux0 1>; + }; + + transceiver4: can-phy4 { + compatible =3D "ti,tcan1042"; + #phy-cells =3D <0>; + max-bitrate =3D <5000000>; + standby-gpios =3D <&exp_som 7 GPIO_ACTIVE_HIGH>; + mux-states =3D <&mux1 1>; + }; }; =20 &main_pmx0 { @@ -144,6 +162,20 @@ vdd_sd_dv_pins_default: vdd-sd-dv-pins-default { J721S2_IOPAD(0x020, PIN_INPUT, 7) /* (AA23) MCAN15_RX.GPIO0_8 */ >; }; + + main_mcan3_pins_default: main-mcan3-pins-default { + pinctrl-single,pins =3D < + J721S2_IOPAD(0x080, PIN_INPUT, 0) /* (U26) MCASP0_AXR4.MCAN3_RX */ + J721S2_IOPAD(0x07c, PIN_OUTPUT, 0) /* (T27) MCASP0_AXR3.MCAN3_TX */ + >; + }; + + main_mcan5_pins_default: main-mcan5-pins-default { + pinctrl-single,pins =3D < + J721S2_IOPAD(0x03c, PIN_INPUT, 0) /* (U27) MCASP0_AFSX.MCAN5_RX */ + J721S2_IOPAD(0x038, PIN_OUTPUT, 0) /* (AB28) MCASP0_ACLKX.MCAN5_TX */ + >; + }; }; =20 &wkup_pmx0 { @@ -309,3 +341,17 @@ &mcu_mcan1 { pinctrl-0 =3D <&mcu_mcan1_pins_default>; phys =3D <&transceiver2>; }; + +&main_mcan3 { + status =3D "okay"; + pinctrl-names =3D "default"; + pinctrl-0 =3D <&main_mcan3_pins_default>; + phys =3D <&transceiver3>; +}; + +&main_mcan5 { + status =3D "okay"; + pinctrl-names =3D "default"; + pinctrl-0 =3D <&main_mcan5_pins_default>; + phys =3D <&transceiver4>; +}; diff --git a/arch/arm64/boot/dts/ti/k3-j721s2-som-p0.dtsi b/arch/arm64/boot= /dts/ti/k3-j721s2-som-p0.dtsi index 6930efff8a5a..e74bc5141903 100644 --- a/arch/arm64/boot/dts/ti/k3-j721s2-som-p0.dtsi +++ b/arch/arm64/boot/dts/ti/k3-j721s2-som-p0.dtsi @@ -31,6 +31,18 @@ secure_ddr: optee@9e800000 { }; }; =20 + mux0: mux-controller0 { + compatible =3D "gpio-mux"; + #mux-state-cells =3D <1>; + mux-gpios =3D <&exp_som 1 GPIO_ACTIVE_HIGH>; + }; + + mux1: mux-controller1 { + compatible =3D "gpio-mux"; + #mux-state-cells =3D <1>; + mux-gpios =3D <&exp_som 2 GPIO_ACTIVE_HIGH>; + }; + transceiver0: can-phy0 { /* standby pin has been grounded by default */ compatible =3D "ti,tcan1042"; --=20 2.39.2