From patchwork Thu Mar 20 16:41:18 2025 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Biju Das X-Patchwork-Id: 14024172 X-Patchwork-Delegate: geert@linux-m68k.org Received: from relmlie5.idc.renesas.com (relmlor1.renesas.com [210.160.252.171]) by smtp.subspace.kernel.org (Postfix) with ESMTP id DB87721C9F2; Thu, 20 Mar 2025 16:41:38 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=210.160.252.171 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1742488900; cv=none; b=TBrUGYdhSm+oNIyIWc2upm0qcn7J6QSP6vHbzZQL1RjgmcmXN5VHB6jw1F6BZL8s8ksvYBTjjZagNYPQpDiIXYCt3PwHtoMYBe3TdaSa1lRbqX4SIeNjUI/ekno3iCI7eIChAQs013Q/wBMrTcSe3tgMD688iFHEyqbNeByyY4U= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1742488900; c=relaxed/simple; bh=xi1iKXhZWCLdT2pVoZvOrzPhwd9Oc06didJRRgDtptg=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=DIC3LogLYCLiYiNNXWlf469FE9jDG4S2M/y7ZQh1h2xqHWzCLVtfL+VXP6RDuFB47q0YNRs2HctWFKaEHLWK4B83FZM3byVCIv9eSeLeN+XyepnMk+zN8kUYnbyhw50BY4SM07q2pjrHFR8UnC3G9QJ0WNswKv4gAoTnNTseSTU= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=bp.renesas.com; spf=pass smtp.mailfrom=bp.renesas.com; arc=none smtp.client-ip=210.160.252.171 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=bp.renesas.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=bp.renesas.com X-CSE-ConnectionGUID: secjPJA4R36WIFw8ZfzM7w== X-CSE-MsgGUID: lKwdLtCBTgC2oxvCOjms6w== Received: from unknown (HELO relmlir5.idc.renesas.com) ([10.200.68.151]) by relmlie5.idc.renesas.com with ESMTP; 21 Mar 2025 01:41:37 +0900 Received: from localhost.localdomain (unknown [10.226.93.24]) by relmlir5.idc.renesas.com (Postfix) with ESMTP id B3E1C400721F; Fri, 21 Mar 2025 01:41:34 +0900 (JST) From: Biju Das To: Geert Uytterhoeven , Magnus Damm , Rob Herring , Krzysztof Kozlowski , Conor Dooley Cc: Biju Das , linux-renesas-soc@vger.kernel.org, devicetree@vger.kernel.org, Prabhakar Mahadev Lad , Biju Das Subject: [PATCH v2 3/3] arm64: dts: renesas: r9a09g047e57-smarc: Enable CAN Transceiver Date: Thu, 20 Mar 2025 16:41:18 +0000 Message-ID: <20250320164121.193857-4-biju.das.jz@bp.renesas.com> X-Mailer: git-send-email 2.43.0 In-Reply-To: <20250320164121.193857-1-biju.das.jz@bp.renesas.com> References: <20250320164121.193857-1-biju.das.jz@bp.renesas.com> Precedence: bulk X-Mailing-List: linux-renesas-soc@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Enable TCAN1046V-Q1 CAN Transceiver populated on RZ/G3E SMARC EVK by modelling it as two instances of tcan1042. Signed-off-by: Biju Das --- v1->v2: * Replaced GPIO hog with CAN Transceiver. --- .../boot/dts/renesas/r9a09g047e57-smarc.dts | 22 ++++++++++++++++ .../boot/dts/renesas/renesas-smarc2.dtsi | 25 +++++++++++++++++++ 2 files changed, 47 insertions(+) diff --git a/arch/arm64/boot/dts/renesas/r9a09g047e57-smarc.dts b/arch/arm64/boot/dts/renesas/r9a09g047e57-smarc.dts index 7e1daaabce8a..1f5e61a73c35 100644 --- a/arch/arm64/boot/dts/renesas/r9a09g047e57-smarc.dts +++ b/arch/arm64/boot/dts/renesas/r9a09g047e57-smarc.dts @@ -8,6 +8,8 @@ /dts-v1/; /* Switch selection settings */ +#define SW_GPIO8_CAN0_STB 0 +#define SW_GPIO9_CAN1_STB 0 #define SW_LCD_EN 0 #define SW_PDM_EN 0 #define SW_SD0_DEV_SEL 0 @@ -42,16 +44,36 @@ &canfd { #if (!SW_PDM_EN) channel1 { status = "okay"; +#if (!SW_LCD_EN) && (SW_GPIO9_CAN1_STB) + phys = <&can_transceiver1>; +#endif }; #endif #if (!SW_LCD_EN) channel4 { status = "okay"; +#if (SW_GPIO8_CAN0_STB) + phys = <&can_transceiver0>; +#endif }; #endif }; +#if (!SW_LCD_EN) && (SW_GPIO8_CAN0_STB) +&can_transceiver0 { + standby-gpios = <&pinctrl RZG3E_GPIO(5, 4) GPIO_ACTIVE_HIGH>; + status = "okay"; +}; +#endif + +#if (!SW_LCD_EN) && (SW_GPIO9_CAN1_STB) +&can_transceiver1 { + standby-gpios = <&pinctrl RZG3E_GPIO(5, 5) GPIO_ACTIVE_HIGH>; + status = "okay"; +}; +#endif + &pinctrl { canfd_pins: canfd { can1_pins: can1 { diff --git a/arch/arm64/boot/dts/renesas/renesas-smarc2.dtsi b/arch/arm64/boot/dts/renesas/renesas-smarc2.dtsi index 1d3a844174b3..afdc1940e24a 100644 --- a/arch/arm64/boot/dts/renesas/renesas-smarc2.dtsi +++ b/arch/arm64/boot/dts/renesas/renesas-smarc2.dtsi @@ -12,6 +12,17 @@ * SW_SDIO_M2E: * 0 - SMARC SDIO signal is connected to uSD1 * 1 - SMARC SDIO signal is connected to M.2 Key E connector + * + * Please set the switch position SW_GPIO_CAN_PMOD on the carrier board and the + * corresponding macro SW_GPIO8_CAN0_STB/SW_GPIO8_CAN0_STB on the board DTS: + * + * SW_GPIO8_CAN0_STB: + * 0 - Connect to GPIO8 PMOD (default) + * 1 - Connect to CAN0 transceiver STB pin + * + * SW_GPIO9_CAN1_STB: + * 0 - Connect to GPIO9 PMOD (default) + * 1 - Connect to CAN1 transceiver STB pin */ / { @@ -27,6 +38,20 @@ aliases { serial3 = &scif0; mmc1 = &sdhi1; }; + + can_transceiver0: can-phy0 { + compatible = "ti,tcan1042"; + #phy-cells = <0>; + max-bitrate = <8000000>; + status = "disabled"; + }; + + can_transceiver1: can-phy1 { + compatible = "ti,tcan1042"; + #phy-cells = <0>; + max-bitrate = <8000000>; + status = "disabled"; + }; }; &canfd {