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Tue, 19 May 2026 03:00:26 -0700 (PDT) From: Biju X-Google-Original-From: Biju To: Geert Uytterhoeven , Magnus Damm , Rob Herring , Krzysztof Kozlowski , Conor Dooley Cc: Biju Das , linux-renesas-soc@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, Prabhakar Mahadev Lad , Biju Das Subject: [PATCH 1/2] arm64: dts: renesas: r9a08g046: Add rsci{0..3} device nodes Date: Tue, 19 May 2026 11:00:17 +0100 Message-ID: <20260519100022.116318-2-biju.das.jz@bp.renesas.com> X-Mailer: git-send-email 2.43.0 In-Reply-To: <20260519100022.116318-1-biju.das.jz@bp.renesas.com> References: <20260519100022.116318-1-biju.das.jz@bp.renesas.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="utf-8" From: Biju Das Add rsci{0..3} device nodes to RZ/G3L ("R9A08G046") SoC DTSI. Signed-off-by: Biju Das --- arch/arm64/boot/dts/renesas/r9a08g046.dtsi | 84 ++++++++++++++++++++++ 1 file changed, 84 insertions(+) diff --git a/arch/arm64/boot/dts/renesas/r9a08g046.dtsi b/arch/arm64/boot/d= ts/renesas/r9a08g046.dtsi index 930873ae7786..a53d579eaad2 100644 --- a/arch/arm64/boot/dts/renesas/r9a08g046.dtsi +++ b/arch/arm64/boot/dts/renesas/r9a08g046.dtsi @@ -358,6 +358,90 @@ i2c3: i2c@10090c00 { status =3D "disabled"; }; =20 + rsci0: serial@100b8000 { + compatible =3D "renesas,r9a08g046-rsci"; + reg =3D <0 0x100b8000 0 0x1000>; + interrupts =3D , + , + , + , + , + ; + interrupt-names =3D "eri", "rxi", "txi", "tei", + "aed", "bfd"; + clocks =3D <&cpg CPG_MOD R9A08G046_RSCI0_TCLK>, + <&cpg CPG_MOD R9A08G046_RSCI0_PCLK>; + clock-names =3D "operation", "bus"; + power-domains =3D <&cpg>; + resets =3D <&cpg R9A08G046_RSCI0_PRESETN>, + <&cpg R9A08G046_RSCI0_TRESETN>; + reset-names =3D "presetn", "tresetn"; + status =3D "disabled"; + }; + + rsci1: serial@100f1000 { + compatible =3D "renesas,r9a08g046-rsci"; + reg =3D <0 0x100f1000 0 0x1000>; + interrupts =3D , + , + , + , + , + ; + interrupt-names =3D "eri", "rxi", "txi", "tei", + "aed", "bfd"; + clocks =3D <&cpg CPG_MOD R9A08G046_RSCI1_TCLK>, + <&cpg CPG_MOD R9A08G046_RSCI1_PCLK>; + clock-names =3D "operation", "bus"; + power-domains =3D <&cpg>; + resets =3D <&cpg R9A08G046_RSCI1_PRESETN>, + <&cpg R9A08G046_RSCI1_TRESETN>; + reset-names =3D "presetn", "tresetn"; + status =3D "disabled"; + }; + + rsci2: serial@100f2000 { + compatible =3D "renesas,r9a08g046-rsci"; + reg =3D <0 0x100f2000 0 0x1000>; + interrupts =3D , + , + , + , + , + ; + interrupt-names =3D "eri", "rxi", "txi", "tei", + "aed", "bfd"; + clocks =3D <&cpg CPG_MOD R9A08G046_RSCI2_TCLK>, + <&cpg CPG_MOD R9A08G046_RSCI2_PCLK>; + clock-names =3D "operation", "bus"; + power-domains =3D <&cpg>; + resets =3D <&cpg R9A08G046_RSCI2_PRESETN>, + <&cpg R9A08G046_RSCI2_TRESETN>; + reset-names =3D "presetn", "tresetn"; + status =3D "disabled"; + }; + + rsci3: serial@100f3000 { + compatible =3D "renesas,r9a08g046-rsci"; + reg =3D <0 0x100f3000 0 0x1000>; + interrupts =3D , + , + , + , + , + ; + interrupt-names =3D "eri", "rxi", "txi", "tei", + "aed", "bfd"; + clocks =3D <&cpg CPG_MOD R9A08G046_RSCI3_TCLK>, + <&cpg CPG_MOD R9A08G046_RSCI3_PCLK>; + clock-names =3D "operation", "bus"; + power-domains =3D <&cpg>; + resets =3D <&cpg R9A08G046_RSCI3_PRESETN>, + <&cpg R9A08G046_RSCI3_TRESETN>; + reset-names =3D "presetn", "tresetn"; + status =3D "disabled"; + }; + canfd: can@100c0000 { reg =3D <0 0x100c0000 0 0x20000>; /* placeholder */ --=20 2.43.0 From nobody Mon May 25 03:53:09 2026 Received: from mail-wm1-f44.google.com (mail-wm1-f44.google.com [209.85.128.44]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 8F276478E36 for ; Tue, 19 May 2026 10:00:31 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.128.44 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; 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Tue, 19 May 2026 03:00:28 -0700 (PDT) Received: from localhost.localdomain ([2a00:23c4:a700:7301:4abf:a82a:41d5:6663]) by smtp.gmail.com with ESMTPSA id 5b1f17b1804b1-48febc56f89sm131791455e9.3.2026.05.19.03.00.27 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 19 May 2026 03:00:27 -0700 (PDT) From: Biju X-Google-Original-From: Biju To: Geert Uytterhoeven , Magnus Damm , Rob Herring , Krzysztof Kozlowski , Conor Dooley Cc: Biju Das , linux-renesas-soc@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, Prabhakar Mahadev Lad , Biju Das Subject: [PATCH 2/2] arm64: dts: renesas: r9a08g046l48-smarc: Enable rsci{1,2,3} nodes Date: Tue, 19 May 2026 11:00:18 +0100 Message-ID: <20260519100022.116318-3-biju.das.jz@bp.renesas.com> X-Mailer: git-send-email 2.43.0 In-Reply-To: <20260519100022.116318-1-biju.das.jz@bp.renesas.com> References: <20260519100022.116318-1-biju.das.jz@bp.renesas.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="utf-8" From: Biju Das Enable rsci{1,2,3} device nodes for the RZ/G3L SMARC EVK. Signed-off-by: Biju Das --- .../boot/dts/renesas/r9a08g046l48-smarc.dts | 59 +++++++++++++++++++ 1 file changed, 59 insertions(+) diff --git a/arch/arm64/boot/dts/renesas/r9a08g046l48-smarc.dts b/arch/arm6= 4/boot/dts/renesas/r9a08g046l48-smarc.dts index 80fb4e53c24b..ccc0decd89ab 100644 --- a/arch/arm64/boot/dts/renesas/r9a08g046l48-smarc.dts +++ b/arch/arm64/boot/dts/renesas/r9a08g046l48-smarc.dts @@ -13,6 +13,7 @@ #define SW_DPI_EN 0 #define SW_GPIO4 0 #define SW_I3C_EN 0 +#define SW_SER0_PMOD 1 =20 #define PMOD_GPIO4 0 #define PMOD_GPIO6 0 @@ -37,6 +38,9 @@ / { aliases { i2c2 =3D &i2c2; i2c3 =3D &i2c3; + serial0 =3D &rsci2; + serial1 =3D &rsci3; + serial2 =3D &rsci1; serial3 =3D &scif0; }; =20 @@ -134,6 +138,30 @@ i2c3_pins: i2c3 { ; /* RIIC3_SDA */ }; =20 + rsci1_pins: rsci1 { + pinmux =3D , /* RSCI1_RXD_MISO_SCL */ + , /* RSCI1_TXD_MOSI_SDA */ + , /* RSCI1_CTS */ + ; /* RSCI1_SS_CTS#_RTS# */ + bias-pull-up; + }; + + rsci2_pins: rsci2 { + pinmux =3D , /* RSCI2_RXD_MISO_SCL */ + , /* RSCI2_TXD_MOSI_SDA */ + , /* RSCI2_CTS */ + ; /* RSCI2_SS_CTS#_RTS# */ + bias-pull-up; + power-source =3D <1800>; + }; + + rsci3_pins: rsci3 { + pinmux =3D , /* RSCI3_RXD_MISO_SCL */ + ; /* RSCI3_TXD_MOSI_SDA */ + bias-pull-up; + power-source =3D <1800>; + }; + scif0_pins: scif0 { pins =3D "SCIF0_TXD", "SCIF0_RXD"; power-source =3D <1800>; @@ -147,6 +175,37 @@ ssi0_pins: ssi0 { }; }; =20 +#if SW_SER0_PMOD +&rsci1 { + pinctrl-0 =3D <&rsci1_pins>; + pinctrl-names =3D "default"; + + uart-has-rtscts; + + status =3D "okay"; +}; +#endif + +#if (!SW_DPI_EN) && (SW_SER0_PMOD) +&rsci2 { + pinctrl-0 =3D <&rsci2_pins>; + pinctrl-names =3D "default"; + + uart-has-rtscts; + + status =3D "okay"; +}; +#endif + +#if (!SW_DPI_EN) +&rsci3 { + pinctrl-0 =3D <&rsci3_pins>; + pinctrl-names =3D "default"; + + status =3D "okay"; +}; +#endif + &scif0 { pinctrl-0 =3D <&scif0_pins>; pinctrl-names =3D "default"; --=20 2.43.0