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([37.159.119.249]) by smtp.gmail.com with ESMTPSA id j32-20020a05600c1c2000b003f173987ec2sm13511653wms.22.2023.04.23.10.25.38 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Sun, 23 Apr 2023 10:25:39 -0700 (PDT) From: Dario Binacchi To: linux-kernel@vger.kernel.org Cc: Amarula patchwork , michael@amarulasolutions.com, Dario Binacchi , Alexandre Torgue , Krzysztof Kozlowski , Lee Jones , Maxime Coquelin , Rob Herring , devicetree@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-stm32@st-md-mailman.stormreply.com Subject: [PATCH 1/4] dt-bindings: mfd: stm32f7: add binding definition for CAN3 Date: Sun, 23 Apr 2023 19:25:25 +0200 Message-Id: <20230423172528.1398158-2-dario.binacchi@amarulasolutions.com> X-Mailer: git-send-email 2.32.0 In-Reply-To: <20230423172528.1398158-1-dario.binacchi@amarulasolutions.com> References: <20230423172528.1398158-1-dario.binacchi@amarulasolutions.com> MIME-Version: 1.0 X-Spam-Status: No, score=-2.1 required=5.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,DKIM_VALID_EF,RCVD_IN_DNSWL_NONE, SPF_HELO_NONE,SPF_PASS,T_SCC_BODY_TEXT_LINE 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?1763988934256280370?= X-GMAIL-MSGID: =?utf-8?q?1763988934256280370?= Add binding definition for CAN3 peripheral. Signed-off-by: Dario Binacchi --- include/dt-bindings/mfd/stm32f7-rcc.h | 1 + 1 file changed, 1 insertion(+) diff --git a/include/dt-bindings/mfd/stm32f7-rcc.h b/include/dt-bindings/mfd/stm32f7-rcc.h index a90f3613c584..8d73a9c51e2b 100644 --- a/include/dt-bindings/mfd/stm32f7-rcc.h +++ b/include/dt-bindings/mfd/stm32f7-rcc.h @@ -64,6 +64,7 @@ #define STM32F7_RCC_APB1_TIM14 8 #define STM32F7_RCC_APB1_LPTIM1 9 #define STM32F7_RCC_APB1_WWDG 11 +#define STM32F7_RCC_APB1_CAN3 13 #define STM32F7_RCC_APB1_SPI2 14 #define STM32F7_RCC_APB1_SPI3 15 #define STM32F7_RCC_APB1_SPDIFRX 16 From patchwork Sun Apr 23 17:25:26 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Dario Binacchi X-Patchwork-Id: 86788 Return-Path: Delivered-To: ouuuleilei@gmail.com Received: by 2002:a59:b0ea:0:b0:3b6:4342:cba0 with SMTP id b10csp2302379vqo; Sun, 23 Apr 2023 10:47:27 -0700 (PDT) X-Google-Smtp-Source: AKy350bJe/qpwQRezx9zdpwGp9dRDlQ+kKf0ddw5JTcZ2yLhIDRNCCqi5c7LgqKhHt2eUf8X2SNW X-Received: by 2002:a17:902:ab8f:b0:1a6:8f8c:fa1a with SMTP id f15-20020a170902ab8f00b001a68f8cfa1amr10686459plr.16.1682272047692; Sun, 23 Apr 2023 10:47:27 -0700 (PDT) ARC-Seal: i=1; a=rsa-sha256; t=1682272047; cv=none; d=google.com; s=arc-20160816; b=tv7voqd3gISERpQO8cUIEbxiTLPu4woxgsVPA6CryLGMxgtgX8+mT5a1gyfQwAtwlD 3x7bTBP/Ylp+ENAe21ZKXn868jBAzS92fFtXvtTQnlTkaj2Ylxscbqy8VCEv3q4RvtUd 0ixc/fvyR0pcno1WKfv7SOx1H4oJgfeKAty/CNYnUHhzvH7g8sf9GNsgE3IwB50AcLln eu74+Q/aosa8T+puHbspqmBF16Rk8ZYZAUZyOrISYDNiZT3nvPt89shq8GByTBexHkKI 48iDcmevTk50FquZ/7gblr8hTf4JDu0W3yPDPEA1ZYuNokqnnZOg7FyvXuNn0Xfo7wg7 R1gw== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=list-id:precedence:content-transfer-encoding:mime-version :references:in-reply-to:message-id:date:subject:cc:to:from :dkim-signature; bh=Nj3vUN1sCuMDZhLchBZ5ljBaRgoXn81VamEs7vmRecg=; b=ypZX80JLrwmwoo4cWhWyCwTu/61Pf05mnRBrm2xaBaE/rBQOd37KvLqJQa+lU8u/vz j8icGjsOR8IbRolFoBJkmL4MsnS2hJyZ5l/FP5K12P3WaMuM101Gde8cDpwQ2k6J3sgL sxbHfQNHly4YvWUzj0dR71e7QRfULao6WxAwf+R7natdZ09ngvFSByody2toNsmMZzhc EIYdZaywr1Yzyq7TwCIqftdB8cIYVm9D0054gkXKKtj5UNmr1/hKTmJBzq++fxfT8HRy iqX6jVA6d/ja/EirrKXYBro1qtDrW1GS0OspYG/e+sB7odJ7Z71Q1G55+9DmoXJv8Dlq 9sDQ== ARC-Authentication-Results: i=1; mx.google.com; dkim=pass header.i=@amarulasolutions.com header.s=google header.b=Ji3b5vRx; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::1:20 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=pass (p=NONE sp=NONE dis=NONE) header.from=amarulasolutions.com Received: from out1.vger.email (out1.vger.email. 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([37.159.119.249]) by smtp.gmail.com with ESMTPSA id j32-20020a05600c1c2000b003f173987ec2sm13511653wms.22.2023.04.23.10.25.40 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Sun, 23 Apr 2023 10:25:41 -0700 (PDT) From: Dario Binacchi To: linux-kernel@vger.kernel.org Cc: Amarula patchwork , michael@amarulasolutions.com, Dario Binacchi , Alexandre Torgue , Krzysztof Kozlowski , Maxime Coquelin , Rob Herring , devicetree@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-stm32@st-md-mailman.stormreply.com Subject: [PATCH 2/4] ARM: dts: stm32: add CAN support on stm32f746 Date: Sun, 23 Apr 2023 19:25:26 +0200 Message-Id: <20230423172528.1398158-3-dario.binacchi@amarulasolutions.com> X-Mailer: git-send-email 2.32.0 In-Reply-To: <20230423172528.1398158-1-dario.binacchi@amarulasolutions.com> References: <20230423172528.1398158-1-dario.binacchi@amarulasolutions.com> MIME-Version: 1.0 X-Spam-Status: No, score=-2.1 required=5.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,DKIM_VALID_EF,RCVD_IN_DNSWL_NONE, SPF_HELO_NONE,SPF_PASS,T_SCC_BODY_TEXT_LINE autolearn=unavailable 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?1763990094969424338?= X-GMAIL-MSGID: =?utf-8?q?1763990094969424338?= Add support for bxcan (Basic eXtended CAN controller) to STM32F746. The chip contains three CAN peripherals, CAN1 and CAN2 in dual peripheral configuration and CAN3 in single peripheral configuration: - Dual CAN peripheral configuration: * CAN1: Primary bxCAN for managing the communication between a secondary bxCAN and the 512-byte SRAM memory. * CAN2: Secondary bxCAN with no direct access to the SRAM memory. This means that the two bxCAN cells share the 512-byte SRAM memory and CAN2 can't be used without enabling CAN1. - Single CAN peripheral configuration: * CAN3: Primary bxCAN with dedicated Memory Access Controller unit and 512-byte SRAM memory. ------------------------------------------------------------------------- | features | CAN1 | CAN2 | CAN 3 | ------------------------------------------------------------------------- | SRAM | 512-byte shared between CAN1 & CAN2 | 512-byte | ------------------------------------------------------------------------- | Filters | 26 filters shared between CAN1 & CAN2 | 14 filters | ------------------------------------------------------------------------- Signed-off-by: Dario Binacchi --- arch/arm/boot/dts/stm32f746.dtsi | 39 ++++++++++++++++++++++++++++++++ 1 file changed, 39 insertions(+) diff --git a/arch/arm/boot/dts/stm32f746.dtsi b/arch/arm/boot/dts/stm32f746.dtsi index dc868e6da40e..70371d9dbb7a 100644 --- a/arch/arm/boot/dts/stm32f746.dtsi +++ b/arch/arm/boot/dts/stm32f746.dtsi @@ -257,6 +257,16 @@ rtc: rtc@40002800 { status = "disabled"; }; + can3: can@40003400 { + compatible = "st,stm32f4-bxcan"; + reg = <0x40003400 0x400>; + interrupts = <104>, <105>, <106>, <107>; + interrupt-names = "tx", "rx0", "rx1", "sce"; + resets = <&rcc STM32F7_APB1_RESET(CAN3)>; + clocks = <&rcc 0 STM32F7_APB1_CLOCK(CAN3)>; + status = "disabled"; + }; + usart2: serial@40004400 { compatible = "st,stm32f7-uart"; reg = <0x40004400 0x400>; @@ -337,6 +347,35 @@ i2c4: i2c@40006000 { status = "disabled"; }; + can1: can@40006400 { + compatible = "st,stm32f4-bxcan"; + reg = <0x40006400 0x200>; + interrupts = <19>, <20>, <21>, <22>; + interrupt-names = "tx", "rx0", "rx1", "sce"; + resets = <&rcc STM32F7_APB1_RESET(CAN1)>; + clocks = <&rcc 0 STM32F7_APB1_CLOCK(CAN1)>; + st,can-primary; + st,gcan = <&gcan>; + status = "disabled"; + }; + + gcan: gcan@40006600 { + compatible = "st,stm32f4-gcan", "syscon"; + reg = <0x40006600 0x200>; + clocks = <&rcc 0 STM32F7_APB1_CLOCK(CAN1)>; + }; + + can2: can@40006800 { + compatible = "st,stm32f4-bxcan"; + reg = <0x40006800 0x200>; + interrupts = <63>, <64>, <65>, <66>; + interrupt-names = "tx", "rx0", "rx1", "sce"; + resets = <&rcc STM32F7_APB1_RESET(CAN2)>; + clocks = <&rcc 0 STM32F7_APB1_CLOCK(CAN2)>; + st,gcan = <&gcan>; + status = "disabled"; + }; + cec: cec@40006c00 { compatible = "st,stm32-cec"; reg = <0x40006C00 0x400>; From patchwork Sun Apr 23 17:25:27 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Dario Binacchi X-Patchwork-Id: 86784 Return-Path: Delivered-To: ouuuleilei@gmail.com Received: by 2002:a59:b0ea:0:b0:3b6:4342:cba0 with SMTP id b10csp2296827vqo; Sun, 23 Apr 2023 10:30:06 -0700 (PDT) X-Google-Smtp-Source: AKy350YqhKkPnJ0FukVVMr5r8bsjDAlxgclyUI3SqiZwuVTtw11YfjiN/sq7zJX8ECTKn/72RpdX X-Received: by 2002:a05:6a21:999b:b0:f2:b01b:af93 with SMTP id ve27-20020a056a21999b00b000f2b01baf93mr9615529pzb.27.1682271006280; Sun, 23 Apr 2023 10:30:06 -0700 (PDT) ARC-Seal: i=1; a=rsa-sha256; t=1682271006; cv=none; d=google.com; s=arc-20160816; b=sAJ75ig15ctf2oCufjhX7jZX345r4SFdhI/+Lnlej7xiDn1IzehGoPZPkwpTnytyYg UXL505W0hPIFcRPfDMoD9+8cdscZignbGRnAjct8S2WqG2IHrXKx2d+qcSAO+p36axMa jl3XAqLbLCCZ1TXvmPTOgBQKBzyHV4ZN5KKY0895K4g9grkHthMWfuNNcBANdQg0bC3M W4ItlWfnjAQHD//UT3kSyp/RzCrO3VKBtKE7s/dmzs+Mk57kryotSMF4OYXlLj9/zGGt 1L3EgoE26avVmL9K49aOg7CPYOmN+dzknDudQlkjt94YYTru0YteArOcA06Tc/HjhfJP 2ikA== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=list-id:precedence:content-transfer-encoding:mime-version :references:in-reply-to:message-id:date:subject:cc:to:from :dkim-signature; bh=0FeM+sCDaiJjgHIKAN9KA5DToVUgObUF0WlB1aYKrng=; b=pNdPhNEieZG0TgVrCkHI2DCZ8uOF3WtOVlgwpNFaTkSGSEnjxeKNhSmxz6+ArOBl/C FUm2p3ijZ7G2CQOd0IpW6yuOV103yTK7BYIyIJEZCwEVCdJgXgdl37t7Ud1U/Tq6BFDo D8hvG5GYaSWUcytj3mXChqoWuJL0LqU4APEQ5Jd1Z8FeE/+rJOX8heILHzIBO0gWTk4T gfa+ziMyoH98XACYvBDl6DAwf21zjnCBErKtuhxVShH0lLFNEKW9z150gM7nBXhBiT8B 7KTUY0vgLzLeqMn4Fu+RsaR3x3BKMxEqVy8fant7f0L4IAgxRDKWM28rPDgy9QLxlf8D PDuA== ARC-Authentication-Results: i=1; mx.google.com; dkim=pass header.i=@amarulasolutions.com header.s=google header.b=Cg0qM4kM; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::1:20 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=pass (p=NONE sp=NONE dis=NONE) header.from=amarulasolutions.com Received: from out1.vger.email (out1.vger.email. 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([37.159.119.249]) by smtp.gmail.com with ESMTPSA id j32-20020a05600c1c2000b003f173987ec2sm13511653wms.22.2023.04.23.10.25.42 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Sun, 23 Apr 2023 10:25:43 -0700 (PDT) From: Dario Binacchi To: linux-kernel@vger.kernel.org Cc: Amarula patchwork , michael@amarulasolutions.com, Dario Binacchi , Alexandre Torgue , Krzysztof Kozlowski , Maxime Coquelin , Rob Herring , devicetree@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-stm32@st-md-mailman.stormreply.com Subject: [PATCH 3/4] ARM: dts: stm32: add pin map for CAN controller on stm32f7 Date: Sun, 23 Apr 2023 19:25:27 +0200 Message-Id: <20230423172528.1398158-4-dario.binacchi@amarulasolutions.com> X-Mailer: git-send-email 2.32.0 In-Reply-To: <20230423172528.1398158-1-dario.binacchi@amarulasolutions.com> References: <20230423172528.1398158-1-dario.binacchi@amarulasolutions.com> MIME-Version: 1.0 X-Spam-Status: No, score=-2.1 required=5.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,DKIM_VALID_EF,RCVD_IN_DNSWL_NONE, SPF_HELO_NONE,SPF_PASS,T_SCC_BODY_TEXT_LINE autolearn=unavailable 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?1763989002823688333?= X-GMAIL-MSGID: =?utf-8?q?1763989002823688333?= Add pin configurations for using CAN controller on stm32f7. Signed-off-by: Dario Binacchi --- arch/arm/boot/dts/stm32f7-pinctrl.dtsi | 82 ++++++++++++++++++++++++++ 1 file changed, 82 insertions(+) diff --git a/arch/arm/boot/dts/stm32f7-pinctrl.dtsi b/arch/arm/boot/dts/stm32f7-pinctrl.dtsi index c8e6c52fb248..9f65403295ca 100644 --- a/arch/arm/boot/dts/stm32f7-pinctrl.dtsi +++ b/arch/arm/boot/dts/stm32f7-pinctrl.dtsi @@ -283,6 +283,88 @@ pins2 { slew-rate = <2>; }; }; + + can1_pins_a: can1-0 { + pins1 { + pinmux = ; /* CAN1_TX */ + }; + pins2 { + pinmux = ; /* CAN1_RX */ + bias-pull-up; + }; + }; + + can1_pins_b: can1-1 { + pins1 { + pinmux = ; /* CAN1_TX */ + }; + pins2 { + pinmux = ; /* CAN1_RX */ + bias-pull-up; + }; + }; + + can1_pins_c: can1-2 { + pins1 { + pinmux = ; /* CAN1_TX */ + }; + pins2 { + pinmux = ; /* CAN1_RX */ + bias-pull-up; + + }; + }; + + can1_pins_d: can1-3 { + pins1 { + pinmux = ; /* CAN1_TX */ + }; + pins2 { + pinmux = ; /* CAN1_RX */ + bias-pull-up; + + }; + }; + + can2_pins_a: can2-0 { + pins1 { + pinmux = ; /* CAN2_TX */ + }; + pins2 { + pinmux = ; /* CAN2_RX */ + bias-pull-up; + }; + }; + + can2_pins_b: can2-1 { + pins1 { + pinmux = ; /* CAN2_TX */ + }; + pins2 { + pinmux = ; /* CAN2_RX */ + bias-pull-up; + }; + }; + + can3_pins_a: can3-0 { + pins1 { + pinmux = ; /* CAN3_TX */ + }; + pins2 { + pinmux = ; /* CAN3_RX */ + bias-pull-up; + }; + }; + + can3_pins_b: can3-1 { + pins1 { + pinmux = ; /* CAN3_TX */ + }; + pins2 { + pinmux = ; /* CAN3_RX */ + bias-pull-up; + }; + }; }; }; }; From patchwork Sun Apr 23 17:25:28 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Dario Binacchi X-Patchwork-Id: 86785 Return-Path: Delivered-To: ouuuleilei@gmail.com Received: by 2002:a59:b0ea:0:b0:3b6:4342:cba0 with SMTP id b10csp2297034vqo; Sun, 23 Apr 2023 10:30:34 -0700 (PDT) X-Google-Smtp-Source: AKy350a0Sj2SfJmVB+xvnFvfosyvNFIFy3I+xbKP2CU0sByHyjlPAJqjcEg4K1U4G3GOz4/ABAEr X-Received: by 2002:a17:903:27c7:b0:1a6:a8e5:9240 with SMTP id km7-20020a17090327c700b001a6a8e59240mr10365527plb.4.1682271033737; Sun, 23 Apr 2023 10:30:33 -0700 (PDT) ARC-Seal: i=1; a=rsa-sha256; t=1682271033; cv=none; d=google.com; s=arc-20160816; b=zhTWb8/7XX/mT1D/HDWPG168wBa7ZvpdIETBxbHQHBH1s6lmqFn7TK7MjH3e2r9z9x pisHd9rJ2LJdEFkMy5PQaXl8F46bPxxgQhQwL7pw4kfwIMkXKQ6rxJBFVdLcAi2ogX+s vDAZJ0bvOX/HqA6fIFEULoD+JHumoIUBScW2Mzv86sA0HN350eYbDj9iMw1Cv2Wb/3Nb TN1kFuLXaEglpUiEm7gdUsgg6Zu4Fe+ObHZC6beizXCiM7l177eIkyZ0AU6td7UoFymR iGqpTIBQBDXLYtLXmX5L7zXxTUXPN7Grf8fsUtFfBFaEgsmLvfESclXPY6UZOTMooKzL QvXg== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=list-id:precedence:content-transfer-encoding:mime-version :references:in-reply-to:message-id:date:subject:cc:to:from :dkim-signature; bh=MbxDPqhzMCS7xX3Keeglii9B+3fU/m4LAIoQKCOvlGw=; b=RRkrYVcZq8rq6HjxklZ3b4qaoRQ35ku+MAdeerTQ3kfBzGNxeNBT2E4Nf++zK5y5Vv vYERZY+kM6ZhYMmwiHFM9psvPG2Lphu9H0hAoGtsW/P+R7i8NG1w2e8yh6+zucAqutyx kei4Jjbh2ofc5D+xaqRowMfMdmyYnkYri6rufEoSojjhLzMZx2WswP1C4rtvGavuMzmX zFPDRtSmzGuGi5s1v4bzKDWUy+ojDZhPr2+wWOcoSgwvOM3MnPpnZI61exhf3CPjkfVA gqfXDbZig0x/27oIqBfCL8Wd7jnkNGCuu72AYUUmSjjPsxeMfiXwX/hgTd6UCMBsJ9HT j+gQ== ARC-Authentication-Results: i=1; mx.google.com; dkim=pass header.i=@amarulasolutions.com header.s=google header.b=kFx5aT3Z; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::1:20 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=pass (p=NONE sp=NONE dis=NONE) header.from=amarulasolutions.com Received: from out1.vger.email (out1.vger.email. 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([37.159.119.249]) by smtp.gmail.com with ESMTPSA id j32-20020a05600c1c2000b003f173987ec2sm13511653wms.22.2023.04.23.10.25.43 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Sun, 23 Apr 2023 10:25:44 -0700 (PDT) From: Dario Binacchi To: linux-kernel@vger.kernel.org Cc: Amarula patchwork , michael@amarulasolutions.com, Dario Binacchi , "David S. Miller" , Eric Dumazet , Jakub Kicinski , Marc Kleine-Budde , Paolo Abeni , Wolfgang Grandegger , linux-can@vger.kernel.org, netdev@vger.kernel.org Subject: [PATCH 4/4] can: bxcan: add support for single peripheral configuration Date: Sun, 23 Apr 2023 19:25:28 +0200 Message-Id: <20230423172528.1398158-5-dario.binacchi@amarulasolutions.com> X-Mailer: git-send-email 2.32.0 In-Reply-To: <20230423172528.1398158-1-dario.binacchi@amarulasolutions.com> References: <20230423172528.1398158-1-dario.binacchi@amarulasolutions.com> MIME-Version: 1.0 X-Spam-Status: No, score=-2.1 required=5.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,DKIM_VALID_EF,RCVD_IN_DNSWL_NONE, SPF_HELO_NONE,SPF_PASS,T_SCC_BODY_TEXT_LINE autolearn=unavailable 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?1763989031503190244?= X-GMAIL-MSGID: =?utf-8?q?1763989031503190244?= Add support for bxCAN controller in single peripheral configuration: - primary bxCAN - dedicated Memory Access Controller unit - 512-byte SRAM memory - 14 fiter banks Signed-off-by: Dario Binacchi --- drivers/net/can/bxcan.c | 20 +++++++++++++++++--- 1 file changed, 17 insertions(+), 3 deletions(-) diff --git a/drivers/net/can/bxcan.c b/drivers/net/can/bxcan.c index e26ccd41e3cb..9bcbbb85da6e 100644 --- a/drivers/net/can/bxcan.c +++ b/drivers/net/can/bxcan.c @@ -155,6 +155,7 @@ struct bxcan_regs { u32 reserved0[88]; /* 0x20 */ struct bxcan_mb tx_mb[BXCAN_TX_MB_NUM]; /* 0x180 - tx mailbox */ struct bxcan_mb rx_mb[BXCAN_RX_MB_NUM]; /* 0x1b0 - rx mailbox */ + u32 reserved1[12]; /* 0x1d0 */ }; struct bxcan_priv { @@ -922,6 +923,12 @@ static int bxcan_get_berr_counter(const struct net_device *ndev, return 0; } +static const struct regmap_config bxcan_gcan_regmap_config = { + .reg_bits = 32, + .val_bits = 32, + .reg_stride = 4, +}; + static int bxcan_probe(struct platform_device *pdev) { struct device_node *np = pdev->dev.of_node; @@ -942,11 +949,18 @@ static int bxcan_probe(struct platform_device *pdev) gcan = syscon_regmap_lookup_by_phandle(np, "st,gcan"); if (IS_ERR(gcan)) { - dev_err(dev, "failed to get shared memory base address\n"); - return PTR_ERR(gcan); + primary = true; + gcan = devm_regmap_init_mmio(dev, + regs + sizeof(struct bxcan_regs), + &bxcan_gcan_regmap_config); + if (IS_ERR(gcan)) { + dev_err(dev, "failed to get filter base address\n"); + return PTR_ERR(gcan); + } + } else { + primary = of_property_read_bool(np, "st,can-primary"); } - primary = of_property_read_bool(np, "st,can-primary"); clk = devm_clk_get(dev, NULL); if (IS_ERR(clk)) { dev_err(dev, "failed to get clock\n");