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charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org >On 02/09/2022 21:22, Jerry Ray wrote: >> The SAMA5D3-EDS board is an Ethernet Development Platform allowing for >> evaluating many Microchip ethernet switch and PHY products. Various >> daughter cards can connect up via an RGMII connector or an RMII connector. >> >> The EDS board is not intended for stand-alone use and has no ethernet >> capabilities when no daughter board is connected. As such, this >> device tree is intended to be used with a DT overlay defining the add-on board. >> To better ensure consistency, some items are defined here as a form of >> documentation so that all add-on overlays will use the same terms. >> >> Google search keywords: "Microchip SAMA5D3-EDS" >> >> Signed-off-by: Jerry Ray >> --- >> v5->v6: >> - Replaced underscores in names where I can, improving naming. >> v4->v5: >> - patch now applies to v6.0-rc2 >> v3->v4: >> - Fixed regulators as necessary to get the board to boot from SD Card. >> v2->v3: >> - Alphabetized pinctrl entries. >> - cleaned up a warning in the regulators section. >> - License tweaked to 'OR MIT' >> - Included Makefile change >> v1->v2: >> - Modified the compatible field in the device tree to reflect Microchip >> Ethernet Development System Board. >> --- >> arch/arm/boot/dts/Makefile | 1 + >> arch/arm/boot/dts/at91-sama5d3_eds.dts | 309 >> +++++++++++++++++++++++++ >> 2 files changed, 310 insertions(+) >> create mode 100644 arch/arm/boot/dts/at91-sama5d3_eds.dts >> >> diff --git a/arch/arm/boot/dts/Makefile b/arch/arm/boot/dts/Makefile >> index 05d8aef6e5d2..e92e639a2dc3 100644 >> --- a/arch/arm/boot/dts/Makefile >> +++ b/arch/arm/boot/dts/Makefile >> @@ -61,6 +61,7 @@ dtb-$(CONFIG_SOC_SAM_V7) += \ >> at91-sama5d2_icp.dtb \ >> at91-sama5d2_ptc_ek.dtb \ >> at91-sama5d2_xplained.dtb \ >> + at91-sama5d3_eds.dtb \ >> at91-sama5d3_ksz9477_evb.dtb \ >> at91-sama5d3_xplained.dtb \ >> at91-dvk_som60.dtb \ >> diff --git a/arch/arm/boot/dts/at91-sama5d3_eds.dts >> b/arch/arm/boot/dts/at91-sama5d3_eds.dts >> new file mode 100644 >> index 000000000000..b4fe1c5f2997 >> --- /dev/null >> +++ b/arch/arm/boot/dts/at91-sama5d3_eds.dts >> @@ -0,0 +1,309 @@ >> +// SPDX-License-Identifier: GPL-2.0+ OR MIT >> +/* >> + * at91-sama5d3_eds.dts - Device Tree file for the SAMA5D3 Ethernet >> + * Development System board. >> + * >> + * Copyright (C) 2022 Microchip Technology Inc. and its subsidiaries >> + * >> + * Author: Jerry Ray */ /dts-v1/; #include >> +"sama5d36.dtsi" >> + >> +/ { >> + model = "SAMA5D3 Ethernet Development System"; >> + compatible = "microchip,sama5d3-eds", "atmel,sama5d36", >> + "atmel,sama5d3", "atmel,sama5"; >> + >> + chosen { >> + stdout-path = "serial0:115200n8"; >> + }; >> + >> + clocks { >> + slow_xtal { > >No underscores in node names. Override by label. > >> + clock-frequency = <32768>; >> + }; >> + >> + main_xtal { >> + clock-frequency = <12000000>; >> + }; >> + }; >> + >> + gpio { >> + compatible = "gpio-keys"; >> + >> + pinctrl-names = "default"; >> + pinctrl-0 = <&pinctrl_key_gpio>; >> + >> + button-3 { >> + label = "PB_USER"; >> + gpios = <&pioE 29 GPIO_ACTIVE_LOW>; >> + linux,code = <0x104>; >> + wakeup-source; >> + }; >> + }; >> + >> + memory@20000000 { >> + reg = <0x20000000 0x10000000>; >> + }; >> + >> + vcc_3v3_reg: buck-regulator-1 { > >Keep consistent prefix or suffix, so: >regulator-buck-1 > >> + compatible = "regulator-fixed"; >> + regulator-name = "VCC_3V3"; >> + regulator-min-microvolt = <3300000>; >> + regulator-max-microvolt = <3300000>; >> + regulator-always-on; >> + }; >> + >> + vcc_2v5_reg: ldo-regulator-2 { > >regulator-ldo-1 >(why numbering of LDO regulators starts from 2? keep some sense in this) > > There are N regulators on the board, so they are numbered 1 thru N. Regulator 2 is regulator 2 whether it's a buck or LDO. >> + compatible = "regulator-fixed"; >> + regulator-name = "VCC_2V5"; >> + regulator-min-microvolt = <2500000>; >> + regulator-max-microvolt = <2500000>; >> + regulator-always-on; >> + vin-supply = <&vcc_3v3_reg>; >> + }; >> + >> + vcc_1v8_reg: ldo-regulator-3 { >> + compatible = "regulator-fixed"; >> + regulator-name = "VCC_1V8"; >> + regulator-min-microvolt = <1800000>; >> + regulator-max-microvolt = <1800000>; >> + regulator-always-on; >> + vin-supply = <&vcc_3v3_reg>; >> + }; >> + >> + vcc_1v2_reg: buck-regulator-4 { >> + compatible = "regulator-fixed"; >> + regulator-name = "VCC_1V2"; >> + regulator-min-microvolt = <1200000>; >> + regulator-max-microvolt = <1200000>; >> + regulator-always-on; >> + }; >> + >> + vcc_mmc0_reg: fixedregulator-mmc0 { > >Just regulator-mmc0 > Okay. >> + compatible = "regulator-fixed"; >> + regulator-name = "mmc0-card-supply"; >> + regulator-min-microvolt = <3300000>; >> + regulator-max-microvolt = <3300000>; >> + regulator-always-on; >> + pinctrl-names = "default"; >> + pinctrl-0 = <&pinctrl_vcc_mmc0_reg_gpio>; >> + gpio = <&pioE 2 GPIO_ACTIVE_LOW>; >> + }; > > >Best regards, >Krzysztof > Regards, Jerry. _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel