From patchwork Wed Sep 25 00:15:17 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Marek Vasut X-Patchwork-Id: 13811406 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 bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 5C6B0CF9C69 for ; Wed, 25 Sep 2024 00:19:38 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender:List-Subscribe:List-Help :List-Post:List-Archive:List-Unsubscribe:List-Id:Content-Transfer-Encoding: MIME-Version:References:In-Reply-To:Message-ID:Date:Subject:Cc:To:From: Reply-To:Content-Type:Content-ID:Content-Description:Resent-Date:Resent-From: Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Owner; bh=vGQYgVEysoNnM/YhfDbfMTIzeSKff7mVsVKAMcxATe0=; b=2saY5xdZH/w3dF4IDHwKk0Dofk 5NrI0U69/exS9p7vpRaRXLK9X0ccCULGjgS00Pu/sInG/u84YXGpfY8+mmLu0CSYWJ6BjPQuC7YQf ns95Jxb4VaHqXCqhee56a6cHMkkmGLlQnaKL8puGYS2xof7dZjIb8kkgWVjqhde+MmCVoRj7UU7Og kukGTcDa2MPJtcoLELZeco7EdHGkpSEarfb0nG6MGU4/ch7XsJOpc/BTqy6HmkMVlQM/EiONG1ooJ n7hsb655nDV1SjMWeWdS9+PnkEojnI0e/qSCrYacZqmDhE+qfJNPeKJEHgy84Oalam7t7rQtw1BJ8 btkUl79w==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.98 #2 (Red Hat Linux)) id 1stFkd-00000003dhY-39sF; Wed, 25 Sep 2024 00:19:27 +0000 Received: from phobos.denx.de ([2a01:238:438b:c500:173d:9f52:ddab:ee01]) by bombadil.infradead.org with esmtps (Exim 4.98 #2 (Red Hat Linux)) id 1stFiM-00000003dK4-42PU for linux-arm-kernel@lists.infradead.org; Wed, 25 Sep 2024 00:17:08 +0000 Received: from tr.lan (ip-86-49-120-218.bb.vodafone.cz [86.49.120.218]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits)) (No client certificate requested) (Authenticated sender: marex@denx.de) by phobos.denx.de (Postfix) with ESMTPSA id 890E988A0D; Wed, 25 Sep 2024 02:17:04 +0200 (CEST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=denx.de; s=phobos-20191101; t=1727223425; bh=vGQYgVEysoNnM/YhfDbfMTIzeSKff7mVsVKAMcxATe0=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=eeyHQsAdVCbnvaJYSlpGlyUTOssaNTehkcjXwSROIyh0XNrp3fiiJEO3IW8k07UOs mL5j8jEumwbZiaqLs+2TeL+HTlMuO2VsqhaHzAKDZUBPLjY1BUMPdZTRhR0iCUwIk+ aJo7D6a913W4/HHGpvYTlolsFhJepW8hg2LNxSGC9y+oTFdCDnevjIC42q/6h0c5cg yZMghhhKxx/09knBUqBDbRvjAuH0HKqYrJSnRxU94ICdvSqoh8XyGpmN36sH1gHJKO W2qO0VlDAFUkHrq0gugoeRdUsUCGtrKjh1XzQA5tQOa2HYKbSZT9cGw9dnmrHjt7H0 sKdaDGVDHwsVQ== From: Marek Vasut To: linux-arm-kernel@lists.infradead.org Cc: kernel@dh-electronics.com, Marek Vasut , Alexander Stein , Conor Dooley , Fabio Estevam , Gregor Herburger , Hiago De Franco , Hugo Villeneuve , Joao Paulo Goncalves , Krzysztof Kozlowski , Mathieu Othacehe , Max Merchel , Michael Walle , Peng Fan , Pengutronix Kernel Team , Rob Herring , Sascha Hauer , Shawn Guo , devicetree@vger.kernel.org, imx@lists.linux.dev Subject: [PATCH 2/2] arm64: dts: imx8mp: Add DH i.MX8MP DHCOM SoM on DRC02 carrier board Date: Wed, 25 Sep 2024 02:15:17 +0200 Message-ID: <20240925001628.669604-2-marex@denx.de> X-Mailer: git-send-email 2.45.2 In-Reply-To: <20240925001628.669604-1-marex@denx.de> References: <20240925001628.669604-1-marex@denx.de> MIME-Version: 1.0 X-Virus-Scanned: clamav-milter 0.103.8 at phobos.denx.de X-Virus-Status: Clean X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20240924_171707_559498_8231A130 X-CRM114-Status: GOOD ( 20.13 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org Add support for DH electronics i.MX8MP DHCOM SoM on DRC02 carrier board. This system is populated with two ethernet ports, two CANs, RS485 and RS232, USB, capacitive buttons and an OLED display. Signed-off-by: Marek Vasut --- Cc: Alexander Stein Cc: Conor Dooley Cc: Fabio Estevam Cc: Gregor Herburger Cc: Hiago De Franco Cc: Hugo Villeneuve Cc: Joao Paulo Goncalves Cc: Krzysztof Kozlowski Cc: Mathieu Othacehe Cc: Max Merchel Cc: Michael Walle Cc: Peng Fan Cc: Pengutronix Kernel Team Cc: Rob Herring Cc: Sascha Hauer Cc: Shawn Guo Cc: devicetree@vger.kernel.org Cc: imx@lists.linux.dev Cc: linux-arm-kernel@lists.infradead.org --- arch/arm64/boot/dts/freescale/Makefile | 1 + .../boot/dts/freescale/imx8mp-dhcom-drc02.dts | 255 ++++++++++++++++++ 2 files changed, 256 insertions(+) create mode 100644 arch/arm64/boot/dts/freescale/imx8mp-dhcom-drc02.dts diff --git a/arch/arm64/boot/dts/freescale/Makefile b/arch/arm64/boot/dts/freescale/Makefile index 9d3df8b218a2e..f6b8041c1e8f7 100644 --- a/arch/arm64/boot/dts/freescale/Makefile +++ b/arch/arm64/boot/dts/freescale/Makefile @@ -167,6 +167,7 @@ dtb-$(CONFIG_ARCH_MXC) += imx8mp-beacon-kit.dtb dtb-$(CONFIG_ARCH_MXC) += imx8mp-data-modul-edm-sbc.dtb dtb-$(CONFIG_ARCH_MXC) += imx8mp-debix-model-a.dtb dtb-$(CONFIG_ARCH_MXC) += imx8mp-debix-som-a-bmb-08.dtb +dtb-$(CONFIG_ARCH_MXC) += imx8mp-dhcom-drc02.dtb dtb-$(CONFIG_ARCH_MXC) += imx8mp-dhcom-pdk2.dtb dtb-$(CONFIG_ARCH_MXC) += imx8mp-dhcom-pdk3.dtb dtb-$(CONFIG_ARCH_MXC) += imx8mp-evk.dtb diff --git a/arch/arm64/boot/dts/freescale/imx8mp-dhcom-drc02.dts b/arch/arm64/boot/dts/freescale/imx8mp-dhcom-drc02.dts new file mode 100644 index 0000000000000..c6bf7fd919814 --- /dev/null +++ b/arch/arm64/boot/dts/freescale/imx8mp-dhcom-drc02.dts @@ -0,0 +1,255 @@ +// SPDX-License-Identifier: (GPL-2.0+ OR MIT) +/* + * Copyright (C) 2024 Marek Vasut + * + * DHCOM iMX8MP variant: + * DHCM-iMX8ML8-C160-R204-F1638-SPI16-E2-CAN2-RTC-I-01D2 + * DHCOM PCB number: 660-100 or newer + * DRC02 PCB number: 568-100 or newer + */ + +/dts-v1/; + +#include +#include +#include "imx8mp-dhcom-som.dtsi" + +/ { + model = "DH electronics i.MX8M Plus DHCOM on DRC02"; + compatible = "dh,imx8mp-dhcom-drc02", "dh,imx8mp-dhcom-som", + "fsl,imx8mp"; + + chosen { + stdout-path = &uart1; + }; +}; + +&eqos { /* First ethernet */ + pinctrl-0 = <&pinctrl_eqos_rmii>; + phy-handle = <ðphy0f>; + phy-mode = "rmii"; + + assigned-clock-parents = <&clk IMX8MP_SYS_PLL1_266M>, + <&clk IMX8MP_SYS_PLL2_100M>, + <&clk IMX8MP_SYS_PLL2_50M>; + assigned-clock-rates = <0>, <100000000>, <50000000>; +}; + +ðphy0g { /* Micrel KSZ9131RNXI */ + status = "disabled"; +}; + +ðphy0f { /* SMSC LAN8740Ai */ + status = "okay"; +}; + +&fec { /* Second ethernet */ + pinctrl-0 = <&pinctrl_fec_rmii>; + phy-handle = <ðphy1f>; + phy-mode = "rmii"; + status = "okay"; + + assigned-clock-parents = <&clk IMX8MP_SYS_PLL1_266M>, + <&clk IMX8MP_SYS_PLL2_100M>, + <&clk IMX8MP_SYS_PLL2_50M>, + <&clk IMX8MP_SYS_PLL2_50M>; + assigned-clock-rates = <0>, <100000000>, <50000000>, <0>; +}; + +ðphy1f { /* SMSC LAN8740Ai */ + status = "okay"; +}; + +&flexcan1 { + status = "okay"; +}; + +&flexcan2 { + status = "okay"; +}; + +&gpio1 { + gpio-line-names = + "DRC02-In1", "", "", "", "", "DHCOM-I", "DRC02-HW2", "DRC02-HW0", + "DHCOM-B", "DHCOM-A", "", "DHCOM-H", "", "", "", "", + "", "", "", "", "", "", "", "", + "", "", "", "", "", "", "", ""; + + /* + * NOTE: On DRC02, the RS485_RX_En is controlled by a separate + * GPIO line, however the i.MX8 UART driver assumes RX happens + * during TX anyway and that it only controls drive enable DE + * line. Hence, the RX is always enabled here. + */ + rs485-rx-en-hog { + gpio-hog; + gpios = <13 0>; /* GPIO Q */ + line-name = "rs485-rx-en"; + output-low; + }; +}; + +&gpio2 { + gpio-line-names = + "", "", "", "", "", "", "", "", + "DHCOM-O", "DHCOM-N", "", "SOM-HW1", "", "", "", "", + "", "", "", "", "DRC02-In2", "", "", "", + "", "", "", "", "", "", "", ""; +}; + +&gpio3 { + gpio-line-names = + "", "", "", "", "", "", "", "", + "", "", "", "", "", "", "SOM-HW0", "", + "", "", "", "", "", "", "SOM-MEM0", "SOM-MEM1", + "SOM-MEM2", "SOM-HW2", "", "", "", "", "", ""; +}; + +&gpio4 { + gpio-line-names = + "", "", "", "", "", "", "", "", + "", "", "", "", "", "", "", "", + "", "", "", "SOM-HW1", "", "", "", "", + "", "", "", "DRC02-Out2", "", "", "", ""; +}; + +&gpio5 { + gpio-line-names = + "", "", "DHCOM-C", "", "", "", "", "", + "", "", "", "", "", "", "", "", + "", "", "", "", "", "", "DHCOM-E", "DRC02-Out1", + "", "", "", "", "", "", "", ""; +}; + +/* No HS connector on this SoM variant, so no HDMI, PCIe and only USB HS. */ +&hdmi_blk_ctrl { + status = "disabled"; +}; + +&hdmi_pvi { + status = "disabled"; +}; + +&hdmi_tx { + status = "disabled"; +}; + +&hdmi_tx_phy { + status = "disabled"; +}; + +&i2c3 { + /* Resistive touch controller not populated on this one SoM variant. */ + touchscreen@49 { + status = "disabled"; + }; +}; + +&irqsteer_hdmi { + status = "disabled"; +}; + +&lcdif3 { + status = "disabled"; +}; + +&pcie_phy { + status = "disabled"; +}; + +&pcie { + status = "disabled"; +}; + +/* Console UART */ +&pinctrl_uart1 { + fsl,pins = < + /* No pull-ups on DRC02, enable in-SoC pull-ups */ + MX8MP_IOMUXC_SAI2_RXC__UART1_DCE_RX 0x149 + MX8MP_IOMUXC_SAI2_RXFS__UART1_DCE_TX 0x149 + >; +}; + +&pinctrl_uart3 { + fsl,pins = < + /* No pull-ups on DRC02, enable in-SoC pull-ups */ + MX8MP_IOMUXC_ECSPI1_SCLK__UART3_DCE_RX 0x149 + MX8MP_IOMUXC_ECSPI1_MOSI__UART3_DCE_TX 0x149 + >; +}; + +&uart1 { + /* + * Due to the use of CAN2 the signals for CAN2 Tx and Rx are routed to + * DHCOM UART1 RTS/CTS pins. Therefore this UART have to use DHCOM GPIOs + * for RTS/CTS. So configure DHCOM GPIO I as RTS and GPIO M as CTS. + */ + /delete-property/ uart-has-rtscts; + cts-gpios = <&gpio5 5 GPIO_ACTIVE_HIGH>; /* GPIO M */ + pinctrl-0 = <&pinctrl_uart1 &pinctrl_dhcom_i &pinctrl_dhcom_m>; + pinctrl-names = "default"; + rts-gpios = <&gpio1 5 GPIO_ACTIVE_HIGH>; /* GPIO I */ +}; + +&uart3 { + /* + * On DRC02 this UART is used as RS485 interface and RS485_TX_En is + * controlled by DHCOM GPIO P. So remove RTS/CTS pins and the property + * uart-has-rtscts from this UART and add the DHCOM GPIO P pin via + * rts-gpios. The RS485_RX_En is controlled by DHCOM GPIO Q, see gpio1 + * node above. + */ + /delete-property/ uart-has-rtscts; + linux,rs485-enabled-at-boot-time; + pinctrl-0 = <&pinctrl_uart3 &pinctrl_dhcom_p &pinctrl_dhcom_q>; + pinctrl-names = "default"; + rts-gpios = <&gpio2 10 GPIO_ACTIVE_HIGH>; /* GPIO P */ +}; + +/* No WiFi/BT chipset on this SoM variant. */ +&uart2 { + bluetooth { + status = "disabled"; + }; +}; + +/* USB_OTG port is not routed out on DRC02. */ +&usb3_0 { + status = "disabled"; +}; + +&usb_dwc3_0 { + status = "disabled"; +}; + +/* USB_HOST port has USB Hub connected to it, PWR/OC pins are unused */ +&usb3_1 { + fsl,disable-port-power-control; + fsl,permanently-attached; +}; + +&usb_dwc3_1 { + dr_mode = "host"; + maximum-speed = "high-speed"; +}; + +/* No WiFi/BT chipset on this SoM variant. */ +&usdhc1 { + status = "disabled"; +}; + +&iomuxc { + /* + * GPIO I is connected to UART1_RTS + * GPIO M is connected to UART1_CTS + * GPIO P is connected to RS485_TX_En + * GPIO Q is connected to RS485_RX_En + */ + pinctrl-0 = <&pinctrl_hog_base + &pinctrl_dhcom_a &pinctrl_dhcom_b &pinctrl_dhcom_c + &pinctrl_dhcom_d &pinctrl_dhcom_e &pinctrl_dhcom_f + &pinctrl_dhcom_g &pinctrl_dhcom_h &pinctrl_dhcom_j + &pinctrl_dhcom_k &pinctrl_dhcom_l &pinctrl_dhcom_n + &pinctrl_dhcom_o &pinctrl_dhcom_r &pinctrl_dhcom_s + &pinctrl_dhcom_int>; +};