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From: Frank Li To: Tim Harvey Cc: Rob Herring , Krzysztof Kozlowski , Conor Dooley , Sascha Hauer , Pengutronix Kernel Team , Fabio Estevam , devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, imx@lists.linux.dev, linux-arm-kernel@lists.infradead.org Subject: Re: [PATCH v2 2/2] arm64: dts: imx: Add i.mx8mm Gateworks GW7906 dts support Message-ID: References: <20260204225020.2039367-1-tharvey@gateworks.com> <20260204225020.2039367-2-tharvey@gateworks.com> Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20260204225020.2039367-2-tharvey@gateworks.com> X-ClientProxiedBy: PH8PR21CA0007.namprd21.prod.outlook.com (2603:10b6:510:2ce::13) To PA4PR04MB9366.eurprd04.prod.outlook.com (2603:10a6:102:2a9::8) MIME-Version: 1.0 X-MS-PublicTrafficType: Email X-MS-TrafficTypeDiagnostic: PA4PR04MB9366:EE_|AM8PR04MB8034:EE_ X-MS-Office365-Filtering-Correlation-Id: e34df92f-f6d3-4ee3-2b76-08de64672c25 X-LD-Processed: 686ea1d3-bc2b-4c6f-a92c-d99c5c301635,ExtAddr 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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 On Wed, Feb 04, 2026 at 02:50:20PM -0800, Tim Harvey wrote: > The GW7906 is based on the i.MX8M Mini SoC featuring: > - LPDDR4 DRAM > - eMMC FLASH > - microSD connector with UHS support > - LIS2DE12 3-axis accelerometer > - Gateworks System Controller > - IMX8M FEC > - software selectable RS232/RS485/RS422 serial transceiver > - PMIC > - 1x isolated RS232 UART > - 1x off-board bi-directional opto-isolated digital I/O > - 1x M.2 A-E Key Socket and 1x MiniPCIe socket with USB2.0 and PCIe > (resistor loading to route PCIe/USB2 between M.2 and MiniPCIe socket) > > The GW7906 has much in common with the GW7903 so it is used as a base. > Differences include: > - different GbE PHY > - a couple of new GPIO's added > - removal of uart1 > - removal of io-expander > > Signed-off-by: Tim Harvey > --- > v2: > - ran through dt-format Thanks > - use gw7903 as a base due to little difference in boards > --- > arch/arm64/boot/dts/freescale/Makefile | 1 + > .../dts/freescale/imx8mm-venice-gw7906.dts | 92 +++++++++++++++++++ > 2 files changed, 93 insertions(+) > create mode 100644 arch/arm64/boot/dts/freescale/imx8mm-venice-gw7906.dts > > diff --git a/arch/arm64/boot/dts/freescale/Makefile b/arch/arm64/boot/dts/freescale/Makefile > index 700bab4d3e60..83fc7faf81d8 100644 > --- a/arch/arm64/boot/dts/freescale/Makefile > +++ b/arch/arm64/boot/dts/freescale/Makefile > @@ -167,6 +167,7 @@ dtb-$(CONFIG_ARCH_MXC) += imx8mm-venice-gw7901.dtb > dtb-$(CONFIG_ARCH_MXC) += imx8mm-venice-gw7902.dtb > dtb-$(CONFIG_ARCH_MXC) += imx8mm-venice-gw7903.dtb > dtb-$(CONFIG_ARCH_MXC) += imx8mm-venice-gw7904.dtb > +dtb-$(CONFIG_ARCH_MXC) += imx8mm-venice-gw7906.dtb > dtb-$(CONFIG_ARCH_MXC) += imx8mm-verdin-nonwifi-dahlia.dtb > dtb-$(CONFIG_ARCH_MXC) += imx8mm-verdin-nonwifi-dev.dtb > dtb-$(CONFIG_ARCH_MXC) += imx8mm-verdin-nonwifi-ivy.dtb > diff --git a/arch/arm64/boot/dts/freescale/imx8mm-venice-gw7906.dts b/arch/arm64/boot/dts/freescale/imx8mm-venice-gw7906.dts > new file mode 100644 > index 000000000000..c4d0610e34ab > --- /dev/null > +++ b/arch/arm64/boot/dts/freescale/imx8mm-venice-gw7906.dts > @@ -0,0 +1,92 @@ > +// SPDX-License-Identifier: (GPL-2.0+ OR MIT) > +/* > + * Copyright 2026 Gateworks Corporation > + */ > + > +/dts-v1/; > + > +#include > + > +#include "imx8mm-venice-gw7903.dts" In https://lore.kernel.org/imx/20260123-gifted-wolverine-from-mars-47b9d4@quoll/ don't prefer dts include dts. Can you create common dtsi? then both mx8mm-venice-gw7906.dts and mx8mm-venice-gw7903.dts include this common dtsi. Ref the method at https://lore.kernel.org/imx/20260204083551.2867263-6-sherry.sun@nxp.com/ Frank > + > +/ { > + compatible = "gateworks,imx8mm-gw7906", "fsl,imx8mm"; > + model = "Gateworks Venice GW7906 i.MX8MM board"; > +}; > + > +&fec1 { > + mdio { > + #address-cells = <1>; > + #size-cells = <0>; > + > + ethphy0: ethernet-phy@0 { > + compatible = "ethernet-phy-ieee802.3-c22"; > + reg = <0>; > + rx-fifo-depth = ; > + tx-fifo-depth = ; > + ti,clk-output-sel = ; > + ti,rx-internal-delay = ; > + ti,tx-internal-delay = ; > + > + leds { > + #address-cells = <1>; > + #size-cells = <0>; > + > + led@1 { > + reg = <1>; > + color = ; > + default-state = "keep"; > + function = LED_FUNCTION_LAN; > + }; > + > + led@2 { > + reg = <2>; > + color = ; > + default-state = "keep"; > + function = LED_FUNCTION_LAN; > + }; > + }; > + }; > + }; > +}; > + > +&gpio2 { > + gpio-line-names = "", "", "", "", "", "", "dig1_ctl", "", > + "dig1_out#", "dig1_in", "", "", "", "", "", "", > + "", "", "", "", "", "", "", "", > + "", "", "", "", "", "", "", ""; > +}; > + > +&gpio5 { > + gpio-line-names = "iob", "ioa", "", "", "", "", "", "", > + "", "", "", "", "pci_wdis#", "", "", "", > + "", "", "", "", "", "", "", "", > + "", "", "", "", "", "", "", ""; > +}; > + > +&i2c1 { > + /delete-node/ gpio@27; > +}; > + > +&iomuxc { > + pinctrl-0 = <&pinctrl_hog>; > + pinctrl-names = "default"; > + > + pinctrl_hog: hoggrp { > + fsl,pins = < > + MX8MM_IOMUXC_GPIO1_IO10_GPIO1_IO10 0x40000041 /* RS422# */ > + MX8MM_IOMUXC_GPIO1_IO11_GPIO1_IO11 0x40000041 /* RS485# */ > + MX8MM_IOMUXC_GPIO1_IO12_GPIO1_IO12 0x40000041 /* RS232# */ > + MX8MM_IOMUXC_SD1_DATA7_GPIO2_IO9 0x40000041 /* DIG1_IN */ > + MX8MM_IOMUXC_SD1_DATA6_GPIO2_IO8 0x40000041 /* DIG1_OUT */ > + MX8MM_IOMUXC_SD1_DATA4_GPIO2_IO6 0x40000041 /* DIG1_CTL */ > + MX8MM_IOMUXC_ECSPI2_MISO_GPIO5_IO12 0x40000041 /* PCI_WDIS# */ > + MX8MM_IOMUXC_SAI3_TXD_GPIO5_IO1 0x40000041 /* IOA */ > + MX8MM_IOMUXC_SAI3_TXC_GPIO5_IO0 0x40000041 /* IOB */ > + >; > + }; > +}; > + > +&uart1 { > + status = "disabled"; > +}; > -- > 2.25.1 >