[PATCH 1/4] dt-bindings: at25: add Fujitsu MB85RS4MT

[PATCH 1/4] dt-bindings: at25: add Fujitsu MB85RS4MT

[Tim Harvey]

Document the compatible value for the Fujitsu MB85RS4MT SPI
FRAM EEPROM device so that it can be used in DTS files.

This is a 512KiB FRAM EEPROM.

Signed-off-by: Tim Harvey <tharvey@gateworks.com>
---
 Documentation/devicetree/bindings/eeprom/at25.yaml | 1 +
 1 file changed, 1 insertion(+)

diff --git a/Documentation/devicetree/bindings/eeprom/at25.yaml b/Documentation/devicetree/bindings/eeprom/at25.yaml
index 6a2dc8b3ed14..f594db72b711 100644
--- a/Documentation/devicetree/bindings/eeprom/at25.yaml
+++ b/Documentation/devicetree/bindings/eeprom/at25.yaml
@@ -26,6 +26,7 @@ properties:
               - anvo,anv32e61w
               - atmel,at25256B
               - fujitsu,mb85rs1mt
+              - fujitsu,mb85rs4mt
               - fujitsu,mb85rs64
               - microchip,at25160bn
               - microchip,25lc040
-- 
2.17.1

[PATCH 2/4] mtd: spi-nor: fujitsu: add support for MB85RS4MT

[Tim Harvey]

Add support for the Fujitsu MB85RS4MT SPI FRAM EEPROM device.

This is a 512KiB FRAM EEPROM.

Signed-off-by: Tim Harvey <tharvey@gateworks.com>
---
 drivers/mtd/spi-nor/fujitsu.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/mtd/spi-nor/fujitsu.c b/drivers/mtd/spi-nor/fujitsu.c
index e385d93e756c..9df5d0576cea 100644
--- a/drivers/mtd/spi-nor/fujitsu.c
+++ b/drivers/mtd/spi-nor/fujitsu.c
@@ -11,6 +11,7 @@
 static const struct flash_info fujitsu_parts[] = {
 	/* Fujitsu */
 	{ "mb85rs1mt", INFO(0x047f27, 0, 128 * 1024, 1, SPI_NOR_NO_ERASE) },
+	{ "mb85rs4mt", INFO(0x047f49, 0, 512 * 1024, 1, SPI_NOR_NO_ERASE) },
 };
 
 const struct spi_nor_manufacturer spi_nor_fujitsu = {
-- 
2.17.1

[PATCH 3/4] dt-bindings: arm: imx: add imx8mm gw7901 support

[Tim Harvey]

The Gateworks GW7901 is an ARM based single board computer (SBC)
featuring:
 - i.MX8M Mini SoC
 - LPDDR4 DRAM
 - eMMC FLASH
 - SPI FRAM
 - Gateworks System Controller (GSC)
 - Atmel ATECC Crypto Authentication
 - USB 2.0
 - Microchip GbE Switch
 - Multiple multi-protocol RS232/RS485/RS422 Serial ports
 - onboard 802.11ac WiFi / BT
 - microSD socket
 - miniPCIe socket with PCIe, USB 2.0 and dual SIM sockets
 - Wide range DC power input
 - 802.3at PoE

Signed-off-by: Tim Harvey <tharvey@gateworks.com>
---
 Documentation/devicetree/bindings/arm/fsl.yaml | 1 +
 1 file changed, 1 insertion(+)

diff --git a/Documentation/devicetree/bindings/arm/fsl.yaml b/Documentation/devicetree/bindings/arm/fsl.yaml
index 297c87f45db8..9af86ce3142d 100644
--- a/Documentation/devicetree/bindings/arm/fsl.yaml
+++ b/Documentation/devicetree/bindings/arm/fsl.yaml
@@ -684,6 +684,7 @@ properties:
               - gw,imx8mm-gw71xx-0x       # i.MX8MM Gateworks Development Kit
               - gw,imx8mm-gw72xx-0x       # i.MX8MM Gateworks Development Kit
               - gw,imx8mm-gw73xx-0x       # i.MX8MM Gateworks Development Kit
+              - gw,imx8mm-gw7901          # i.MX8MM Gateworks Board
               - kontron,imx8mm-n801x-som  # i.MX8MM Kontron SL (N801X) SOM
               - variscite,var-som-mx8mm   # i.MX8MM Variscite VAR-SOM-MX8MM module
           - const: fsl,imx8mm
-- 
2.17.1

[PATCH 4/4] arm64: dts: imx: Add i.mx8mm Gateworks gw7901 dts support

[Tim Harvey]

The Gateworks GW7901 is an ARM based single board computer (SBC)
featuring:
 - i.MX8M Mini SoC
 - LPDDR4 DRAM
 - eMMC FLASH
 - SPI FRAM
 - Gateworks System Controller (GSC)
 - Atmel ATECC Crypto Authentication
 - USB 2.0
 - Microchip GbE Switch
 - Multiple multi-protocol RS232/RS485/RS422 Serial ports
 - onboard 802.11ac WiFi / BT
 - microSD socket
 - miniPCIe socket with PCIe, USB 2.0 and dual SIM sockets
 - Wide range DC power input
 - 802.3at PoE

Signed-off-by: Tim Harvey <tharvey@gateworks.com>
---
 arch/arm64/boot/dts/freescale/Makefile        |    1 +
 .../dts/freescale/imx8mm-venice-gw7901.dts    | 1008 +++++++++++++++++
 2 files changed, 1009 insertions(+)
 create mode 100644 arch/arm64/boot/dts/freescale/imx8mm-venice-gw7901.dts

diff --git a/arch/arm64/boot/dts/freescale/Makefile b/arch/arm64/boot/dts/freescale/Makefile
index 6438db3822f8..2a93323a7d3e 100644
--- a/arch/arm64/boot/dts/freescale/Makefile
+++ b/arch/arm64/boot/dts/freescale/Makefile
@@ -39,6 +39,7 @@ dtb-$(CONFIG_ARCH_MXC) += imx8mm-var-som-symphony.dtb
 dtb-$(CONFIG_ARCH_MXC) += imx8mm-venice-gw71xx-0x.dtb
 dtb-$(CONFIG_ARCH_MXC) += imx8mm-venice-gw72xx-0x.dtb
 dtb-$(CONFIG_ARCH_MXC) += imx8mm-venice-gw73xx-0x.dtb
+dtb-$(CONFIG_ARCH_MXC) += imx8mm-venice-gw7901.dtb
 dtb-$(CONFIG_ARCH_MXC) += imx8mn-beacon-kit.dtb
 dtb-$(CONFIG_ARCH_MXC) += imx8mn-evk.dtb
 dtb-$(CONFIG_ARCH_MXC) += imx8mn-ddr4-evk.dtb
diff --git a/arch/arm64/boot/dts/freescale/imx8mm-venice-gw7901.dts b/arch/arm64/boot/dts/freescale/imx8mm-venice-gw7901.dts
new file mode 100644
index 000000000000..718b4b7d555b
--- /dev/null
+++ b/arch/arm64/boot/dts/freescale/imx8mm-venice-gw7901.dts
@@ -0,0 +1,1008 @@
+// SPDX-License-Identifier: (GPL-2.0+ OR MIT)
+/*
+ * Copyright 2020 Gateworks Corporation
+ */
+
+/dts-v1/;
+
+#include <dt-bindings/gpio/gpio.h>
+#include <dt-bindings/input/linux-event-codes.h>
+#include <dt-bindings/leds/common.h>
+
+#include "imx8mm.dtsi"
+
+/ {
+	model = "Gateworks Venice GW7901 i.MX8MM board";
+	compatible = "gw,imx8mm-gw7901", "fsl,imx8mm";
+
+	aliases {
+		ethernet0 = &fec1;
+		ethernet1 = &lan1;
+		ethernet2 = &lan2;
+		ethernet3 = &lan3;
+		ethernet4 = &lan4;
+		usb0 = &usbotg1;
+		usb1 = &usbotg2;
+	};
+
+	chosen {
+		stdout-path = &uart2;
+	};
+
+	memory@40000000 {
+		device_type = "memory";
+		reg = <0x0 0x40000000 0 0x80000000>;
+	};
+
+	gpio-keys {
+		compatible = "gpio-keys";
+
+		user-pb {
+			label = "user_pb";
+			gpios = <&gpio 2 GPIO_ACTIVE_LOW>;
+			linux,code = <BTN_0>;
+		};
+
+		user-pb1x {
+			label = "user_pb1x";
+			linux,code = <BTN_1>;
+			interrupt-parent = <&gsc>;
+			interrupts = <0>;
+		};
+
+		key-erased {
+			label = "key_erased";
+			linux,code = <BTN_2>;
+			interrupt-parent = <&gsc>;
+			interrupts = <1>;
+		};
+
+		eeprom-wp {
+			label = "eeprom_wp";
+			linux,code = <BTN_3>;
+			interrupt-parent = <&gsc>;
+			interrupts = <2>;
+		};
+
+		tamper {
+			label = "tamper";
+			linux,code = <BTN_4>;
+			interrupt-parent = <&gsc>;
+			interrupts = <5>;
+		};
+
+		switch-hold {
+			label = "switch_hold";
+			linux,code = <BTN_5>;
+			interrupt-parent = <&gsc>;
+			interrupts = <7>;
+		};
+	};
+
+	led-controller {
+		compatible = "gpio-leds";
+
+		led-0 {
+			function = LED_FUNCTION_STATUS;
+			color = <LED_COLOR_ID_RED>;
+			label = "led01_red";
+			gpios = <&leds_gpio 0 GPIO_ACTIVE_HIGH>;
+			default-state = "off";
+		};
+
+		led-1 {
+			function = LED_FUNCTION_STATUS;
+			color = <LED_COLOR_ID_GREEN>;
+			label = "led01_grn";
+			gpios = <&leds_gpio 1 GPIO_ACTIVE_HIGH>;
+			default-state = "off";
+		};
+
+		led-2 {
+			function = LED_FUNCTION_STATUS;
+			color = <LED_COLOR_ID_RED>;
+			label = "led02_red";
+			gpios = <&leds_gpio 2 GPIO_ACTIVE_HIGH>;
+			default-state = "off";
+		};
+
+		led-3 {
+			function = LED_FUNCTION_STATUS;
+			color = <LED_COLOR_ID_GREEN>;
+			label = "led02_grn";
+			gpios = <&leds_gpio 3 GPIO_ACTIVE_HIGH>;
+			default-state = "off";
+		};
+
+		led-4 {
+			function = LED_FUNCTION_STATUS;
+			color = <LED_COLOR_ID_RED>;
+			label = "led03_red";
+			gpios = <&leds_gpio 4 GPIO_ACTIVE_HIGH>;
+			default-state = "off";
+		};
+
+		led-5 {
+			function = LED_FUNCTION_STATUS;
+			color = <LED_COLOR_ID_GREEN>;
+			label = "led03_grn";
+			gpios = <&leds_gpio 5 GPIO_ACTIVE_HIGH>;
+			default-state = "off";
+		};
+
+		led-6 {
+			function = LED_FUNCTION_STATUS;
+			color = <LED_COLOR_ID_RED>;
+			label = "led04_red";
+			gpios = <&leds_gpio 8 GPIO_ACTIVE_HIGH>;
+			default-state = "off";
+		};
+
+		led-7 {
+			function = LED_FUNCTION_STATUS;
+			color = <LED_COLOR_ID_GREEN>;
+			label = "led04_grn";
+			gpios = <&leds_gpio 9 GPIO_ACTIVE_HIGH>;
+			default-state = "off";
+		};
+
+		led-8 {
+			function = LED_FUNCTION_STATUS;
+			color = <LED_COLOR_ID_RED>;
+			label = "led05_red";
+			gpios = <&leds_gpio 10 GPIO_ACTIVE_HIGH>;
+			default-state = "off";
+		};
+
+		led-9 {
+			function = LED_FUNCTION_STATUS;
+			color = <LED_COLOR_ID_GREEN>;
+			label = "led05_grn";
+			gpios = <&leds_gpio 11 GPIO_ACTIVE_HIGH>;
+			default-state = "off";
+		};
+
+		led-a {
+			function = LED_FUNCTION_STATUS;
+			color = <LED_COLOR_ID_RED>;
+			label = "led06_red";
+			gpios = <&leds_gpio 12 GPIO_ACTIVE_HIGH>;
+			default-state = "off";
+		};
+
+		led-b {
+			function = LED_FUNCTION_STATUS;
+			color = <LED_COLOR_ID_GREEN>;
+			label = "led06_grn";
+			gpios = <&leds_gpio 13 GPIO_ACTIVE_HIGH>;
+			default-state = "off";
+		};
+	};
+
+	reg_3p3v: regulator-3p3v {
+		compatible = "regulator-fixed";
+		regulator-name = "3P3V";
+		regulator-min-microvolt = <3300000>;
+		regulator-max-microvolt = <3300000>;
+		regulator-always-on;
+	};
+
+	regulator-ioexp {
+		pinctrl-names = "default";
+		pinctrl-0 = <&pinctrl_reg_ioexp>;
+		compatible = "regulator-fixed";
+		regulator-name = "ioexp";
+		gpio = <&gpio4 21 GPIO_ACTIVE_HIGH>;
+		startup-delay-us = <100>;
+		enable-active-high;
+		regulator-min-microvolt = <3300000>;
+		regulator-max-microvolt = <3300000>;
+		regulator-always-on;
+	};
+
+	regulator-isouart {
+		pinctrl-names = "default";
+		pinctrl-0 = <&pinctrl_reg_isouart>;
+		compatible = "regulator-fixed";
+		regulator-name = "iso_uart";
+		gpio = <&gpio1 13 GPIO_ACTIVE_LOW>;
+		startup-delay-us = <100>;
+		regulator-min-microvolt = <3300000>;
+		regulator-max-microvolt = <3300000>;
+		regulator-always-on;
+	};
+
+	reg_usb2_vbus: regulator-usb2 {
+		pinctrl-names = "default";
+		pinctrl-0 = <&pinctrl_reg_usb2>;
+		compatible = "regulator-fixed";
+		regulator-name = "usb_usb2_vbus";
+		gpio = <&gpio4 17 GPIO_ACTIVE_HIGH>;
+		enable-active-high;
+		regulator-min-microvolt = <5000000>;
+		regulator-max-microvolt = <5000000>;
+	};
+
+	reg_wifi: regulator-wifi {
+		pinctrl-names = "default";
+		pinctrl-0 = <&pinctrl_reg_wl>;
+		compatible = "regulator-fixed";
+		regulator-name = "wifi";
+		gpio = <&gpio3 25 GPIO_ACTIVE_HIGH>;
+		startup-delay-us = <100>;
+		enable-active-high;
+		regulator-min-microvolt = <3300000>;
+		regulator-max-microvolt = <3300000>;
+	};
+};
+
+&ddrc {
+	operating-points-v2 = <&ddrc_opp_table>;
+
+	ddrc_opp_table: opp-table {
+		compatible = "operating-points-v2";
+
+		opp-25M {
+			opp-hz = /bits/ 64 <25000000>;
+		};
+
+		opp-100M {
+			opp-hz = /bits/ 64 <100000000>;
+		};
+
+		opp-750M {
+			opp-hz = /bits/ 64 <750000000>;
+		};
+	};
+};
+
+&ecspi1 {
+	pinctrl-names = "default";
+	pinctrl-0 = <&pinctrl_spi1>;
+	cs-gpios = <&gpio5 9 GPIO_ACTIVE_LOW>;
+	status = "okay";
+
+	mb85rs4mt@0 {
+		compatible = "jedec,spi-nor", "mb85rs4mt";
+		reg = <0>;
+		spi-max-frequency = <40000000>;
+		status = "okay";
+	};
+};
+
+&fec1 {
+	pinctrl-names = "default";
+	pinctrl-0 = <&pinctrl_fec1>;
+	phy-mode = "rgmii-id";
+	local-mac-address = [00 00 00 00 00 00];
+	status = "okay";
+
+	fixed-link {
+		speed = <1000>;
+		full-duplex;
+	};
+};
+
+&i2c1 {
+	clock-frequency = <100000>;
+	pinctrl-names = "default";
+	pinctrl-0 = <&pinctrl_i2c1>;
+	status = "okay";
+
+	gsc: gsc@20 {
+		compatible = "gw,gsc";
+		reg = <0x20>;
+		pinctrl-0 = <&pinctrl_gsc>;
+		interrupt-parent = <&gpio4>;
+		interrupts = <16 IRQ_TYPE_EDGE_FALLING>;
+		interrupt-controller;
+		#interrupt-cells = <1>;
+
+		adc {
+			compatible = "gw,gsc-adc";
+			#address-cells = <1>;
+			#size-cells = <0>;
+
+			channel@6 {
+				gw,mode = <0>;
+				reg = <0x06>;
+				label = "temp";
+			};
+
+			channel@8 {
+				gw,mode = <1>;
+				reg = <0x08>;
+				label = "vdd_bat";
+			};
+
+			channel@82 {
+				gw,mode = <2>;
+				reg = <0x82>;
+				label = "vin_aux1";
+				gw,voltage-divider-ohms = <22100 1000>;
+			};
+
+			channel@84 {
+				gw,mode = <2>;
+				reg = <0x84>;
+				label = "vin_aux2";
+				gw,voltage-divider-ohms = <22100 1000>;
+			};
+
+			channel@86 {
+				gw,mode = <2>;
+				reg = <0x86>;
+				label = "vdd_vin";
+				gw,voltage-divider-ohms = <22100 1000>;
+			};
+
+			channel@88 {
+				gw,mode = <2>;
+				reg = <0x88>;
+				label = "vdd_3p3";
+				gw,voltage-divider-ohms = <10000 10000>;
+			};
+
+			channel@8c {
+				gw,mode = <2>;
+				reg = <0x8c>;
+				label = "vdd_2p5";
+				gw,voltage-divider-ohms = <10000 10000>;
+			};
+
+			channel@8e {
+				gw,mode = <2>;
+				reg = <0x8e>;
+				label = "vdd_0p95";
+			};
+
+			channel@90 {
+				gw,mode = <2>;
+				reg = <0x90>;
+				label = "vdd_soc";
+			};
+
+			channel@92 {
+				gw,mode = <2>;
+				reg = <0x92>;
+				label = "vdd_arm";
+			};
+
+			channel@98 {
+				gw,mode = <2>;
+				reg = <0x98>;
+				label = "vdd_1p8";
+			};
+
+			channel@9a {
+				gw,mode = <2>;
+				reg = <0x9a>;
+				label = "vdd_1p2";
+			};
+
+			channel@9c {
+				gw,mode = <2>;
+				reg = <0x9c>;
+				label = "vdd_dram";
+			};
+
+			channel@a2 {
+				gw,mode = <2>;
+				reg = <0xa2>;
+				label = "vdd_gsc";
+				gw,voltage-divider-ohms = <10000 10000>;
+			};
+		};
+	};
+
+	gpio: gpio@23 {
+		compatible = "nxp,pca9555";
+		reg = <0x23>;
+		gpio-controller;
+		#gpio-cells = <2>;
+		interrupt-parent = <&gsc>;
+		interrupts = <4>;
+	};
+
+	eeprom@50 {
+		compatible = "atmel,24c02";
+		reg = <0x50>;
+		pagesize = <16>;
+	};
+
+	eeprom@51 {
+		compatible = "atmel,24c02";
+		reg = <0x51>;
+		pagesize = <16>;
+	};
+
+	eeprom@52 {
+		compatible = "atmel,24c02";
+		reg = <0x52>;
+		pagesize = <16>;
+	};
+
+	eeprom@53 {
+		compatible = "atmel,24c02";
+		reg = <0x53>;
+		pagesize = <16>;
+	};
+
+	rtc@68 {
+		compatible = "dallas,ds1672";
+		reg = <0x68>;
+	};
+};
+
+&i2c2 {
+	clock-frequency = <400000>;
+	pinctrl-names = "default";
+	pinctrl-0 = <&pinctrl_i2c2>;
+	status = "okay";
+
+	pmic@4b {
+		compatible = "rohm,bd71847";
+		reg = <0x4b>;
+		pinctrl-0 = <&pinctrl_pmic>;
+		interrupt-parent = <&gpio3>;
+		interrupts = <20 IRQ_TYPE_LEVEL_LOW>;
+
+		regulators {
+			/* vdd_soc: 0.805-0.900V (typ=0.8V) */
+			BUCK1 {
+				regulator-name = "buck1";
+				regulator-min-microvolt = <700000>;
+				regulator-max-microvolt = <1300000>;
+				regulator-boot-on;
+				regulator-always-on;
+				regulator-ramp-delay = <1250>;
+			};
+
+			/* vdd_arm: 0.805-1.0V (typ=0.9V) */
+			BUCK2 {
+				regulator-name = "buck2";
+				regulator-min-microvolt = <700000>;
+				regulator-max-microvolt = <1300000>;
+				regulator-boot-on;
+				regulator-always-on;
+				regulator-ramp-delay = <1250>;
+				rohm,dvs-run-voltage = <1000000>;
+				rohm,dvs-idle-voltage = <900000>;
+			};
+
+			/* vdd_0p9: 0.805-1.0V (typ=0.9V) */
+			BUCK3 {
+				regulator-name = "buck3";
+				regulator-min-microvolt = <700000>;
+				regulator-max-microvolt = <1350000>;
+				regulator-boot-on;
+				regulator-always-on;
+			};
+
+			/* vdd_3p3 */
+			BUCK4 {
+				regulator-name = "buck4";
+				regulator-min-microvolt = <3000000>;
+				regulator-max-microvolt = <3300000>;
+				regulator-boot-on;
+				regulator-always-on;
+			};
+
+			/* vdd_1p8 */
+			BUCK5 {
+				regulator-name = "buck5";
+				regulator-min-microvolt = <1605000>;
+				regulator-max-microvolt = <1995000>;
+				regulator-boot-on;
+				regulator-always-on;
+			};
+
+			/* vdd_dram */
+			BUCK6 {
+				regulator-name = "buck6";
+				regulator-min-microvolt = <800000>;
+				regulator-max-microvolt = <1400000>;
+				regulator-boot-on;
+				regulator-always-on;
+			};
+
+			/* nvcc_snvs_1p8 */
+			LDO1 {
+				regulator-name = "ldo1";
+				regulator-min-microvolt = <1600000>;
+				regulator-max-microvolt = <1900000>;
+				regulator-boot-on;
+				regulator-always-on;
+			};
+
+			/* vdd_snvs_0p8 */
+			LDO2 {
+				regulator-name = "ldo2";
+				regulator-min-microvolt = <800000>;
+				regulator-max-microvolt = <900000>;
+				regulator-boot-on;
+				regulator-always-on;
+			};
+
+			/* vdda_1p8 */
+			LDO3 {
+				regulator-name = "ldo3";
+				regulator-min-microvolt = <1800000>;
+				regulator-max-microvolt = <3300000>;
+				regulator-boot-on;
+				regulator-always-on;
+			};
+
+			LDO4 {
+				regulator-name = "ldo4";
+				regulator-min-microvolt = <900000>;
+				regulator-max-microvolt = <1800000>;
+				regulator-boot-on;
+				regulator-always-on;
+			};
+
+			LDO6 {
+				regulator-name = "ldo6";
+				regulator-min-microvolt = <900000>;
+				regulator-max-microvolt = <1800000>;
+				regulator-boot-on;
+				regulator-always-on;
+			};
+		};
+	};
+};
+
+&i2c3 {
+	clock-frequency = <400000>;
+	pinctrl-names = "default";
+	pinctrl-0 = <&pinctrl_i2c3>;
+	status = "okay";
+
+	leds_gpio: gpio@20 {
+		compatible = "nxp,pca9555";
+		reg = <0x20>;
+		gpio-controller;
+		#gpio-cells = <2>;
+	};
+
+	switch: switch@5f {
+		compatible = "microchip,ksz9897";
+		reg = <0x5f>;
+		pinctrl-0 = <&pinctrl_ksz>;
+		interrupt-parent = <&gpio4>;
+		interrupts = <18 IRQ_TYPE_EDGE_FALLING>;
+		phy-mode = "rgmii-id";
+
+		ports {
+			#address-cells = <1>;
+			#size-cells = <0>;
+			lan1: port@0 {
+				reg = <0>;
+				label = "lan1";
+				local-mac-address = [00 00 00 00 00 00];
+			};
+			lan2: port@1 {
+				reg = <1>;
+				label = "lan2";
+				local-mac-address = [00 00 00 00 00 00];
+			};
+			lan3: port@2 {
+				reg = <2>;
+				label = "lan3";
+				local-mac-address = [00 00 00 00 00 00];
+			};
+			lan4: port@3 {
+				reg = <3>;
+				label = "lan4";
+				local-mac-address = [00 00 00 00 00 00];
+			};
+			port@5 {
+				reg = <5>;
+				label = "cpu";
+				ethernet = <&fec1>;
+				phy-mode = "rgmii-id";
+
+				fixed-link {
+					speed = <1000>;
+					full-duplex;
+				};
+			};
+		};
+	};
+
+	crypto@60 {
+		compatible = "atmel,atecc508a";
+		reg = <0x60>;
+	};
+};
+
+&i2c4 {
+	clock-frequency = <400000>;
+	pinctrl-names = "default";
+	pinctrl-0 = <&pinctrl_i2c4>;
+	status = "okay";
+};
+
+&uart1 {
+	pinctrl-names = "default";
+	pinctrl-0 = <&pinctrl_uart1>, <&pinctrl_uart1_gpio>;
+	rts-gpios = <&gpio1 10 GPIO_ACTIVE_LOW>;
+	cts-gpios = <&gpio1 12 GPIO_ACTIVE_LOW>;
+	dtr-gpios = <&gpio1 14 GPIO_ACTIVE_LOW>;
+	dsr-gpios = <&gpio1 1 GPIO_ACTIVE_LOW>;
+	dcd-gpios = <&gpio1 11 GPIO_ACTIVE_LOW>;
+	status = "okay";
+};
+
+/* console */
+&uart2 {
+	pinctrl-names = "default";
+	pinctrl-0 = <&pinctrl_uart2>;
+	status = "okay";
+};
+
+&uart3 {
+	pinctrl-names = "default";
+	pinctrl-0 = <&pinctrl_uart3>, <&pinctrl_uart3_gpio>;
+	cts-gpios = <&gpio4 10 GPIO_ACTIVE_LOW>;
+	rts-gpios = <&gpio4 9 GPIO_ACTIVE_LOW>;
+	status = "okay";
+};
+
+&uart4 {
+	pinctrl-names = "default";
+	pinctrl-0 = <&pinctrl_uart4>, <&pinctrl_uart4_gpio>;
+	cts-gpios = <&gpio5 11 GPIO_ACTIVE_LOW>;
+	rts-gpios = <&gpio5 12 GPIO_ACTIVE_LOW>;
+	status = "okay";
+};
+
+&usbotg1 {
+	dr_mode = "host";
+	disable-over-current;
+	status = "okay";
+};
+
+&usbotg2 {
+	dr_mode = "host";
+	vbus-supply = <&reg_usb2_vbus>;
+	status = "okay";
+};
+
+/* SDIO WiFi */
+&usdhc1 {
+	pinctrl-names = "default";
+	pinctrl-0 = <&pinctrl_usdhc1>;
+	bus-width = <4>;
+	non-removable;
+	vmmc-supply = <&reg_wifi>;
+	status = "okay";
+};
+
+/* microSD */
+&usdhc2 {
+	pinctrl-names = "default", "state_100mhz", "state_200mhz";
+	pinctrl-0 = <&pinctrl_usdhc2>, <&pinctrl_usdhc2_gpio>;
+	pinctrl-1 = <&pinctrl_usdhc2_100mhz>, <&pinctrl_usdhc2_gpio>;
+	pinctrl-2 = <&pinctrl_usdhc2_200mhz>, <&pinctrl_usdhc2_gpio>;
+	cd-gpios = <&gpio2 12 GPIO_ACTIVE_LOW>;
+	bus-width = <4>;
+	vmmc-supply = <&reg_3p3v>;
+	status = "okay";
+};
+
+/* eMMC */
+&usdhc3 {
+	pinctrl-names = "default", "state_100mhz", "state_200mhz";
+	pinctrl-0 = <&pinctrl_usdhc3>;
+	pinctrl-1 = <&pinctrl_usdhc3_100mhz>;
+	pinctrl-2 = <&pinctrl_usdhc3_200mhz>;
+	bus-width = <8>;
+	non-removable;
+	status = "okay";
+};
+
+&wdog1 {
+	pinctrl-names = "default";
+	pinctrl-0 = <&pinctrl_wdog>;
+	fsl,ext-reset-output;
+	status = "okay";
+};
+
+&iomuxc {
+	pinctrl-names = "default";
+	pinctrl-0 = <&pinctrl_hog>;
+
+	pinctrl_hog: hoggrp {
+		fsl,pins = <
+			MX8MM_IOMUXC_SPDIF_TX_GPIO5_IO3		0x40000041 /* DIG2_OUT */
+			MX8MM_IOMUXC_SPDIF_RX_GPIO5_IO4		0x40000041 /* DIG2_IN */
+			MX8MM_IOMUXC_GPIO1_IO06_GPIO1_IO6	0x40000041 /* DIG1_IN */
+			MX8MM_IOMUXC_GPIO1_IO07_GPIO1_IO7	0x40000041 /* DIG1_OUT */
+			MX8MM_IOMUXC_SAI3_RXD_GPIO4_IO30	0x40000041 /* SIM2DET# */
+			MX8MM_IOMUXC_SAI3_RXC_GPIO4_IO29	0x40000041 /* SIM1DET# */
+			MX8MM_IOMUXC_SPDIF_EXT_CLK_GPIO5_IO5	0x40000041 /* SIM2SEL */
+		>;
+	};
+
+	pinctrl_fec1: fec1grp {
+		fsl,pins = <
+			MX8MM_IOMUXC_ENET_MDC_ENET1_MDC			0x3
+			MX8MM_IOMUXC_ENET_MDIO_ENET1_MDIO		0x3
+			MX8MM_IOMUXC_ENET_TD3_ENET1_RGMII_TD3		0x1f
+			MX8MM_IOMUXC_ENET_TD2_ENET1_RGMII_TD2		0x1f
+			MX8MM_IOMUXC_ENET_TD1_ENET1_RGMII_TD1		0x1f
+			MX8MM_IOMUXC_ENET_TD0_ENET1_RGMII_TD0		0x1f
+			MX8MM_IOMUXC_ENET_RD3_ENET1_RGMII_RD3		0x91
+			MX8MM_IOMUXC_ENET_RD2_ENET1_RGMII_RD2		0x91
+			MX8MM_IOMUXC_ENET_RD1_ENET1_RGMII_RD1		0x91
+			MX8MM_IOMUXC_ENET_RD0_ENET1_RGMII_RD0		0x91
+			MX8MM_IOMUXC_ENET_TXC_ENET1_RGMII_TXC		0x1f
+			MX8MM_IOMUXC_ENET_RXC_ENET1_RGMII_RXC		0x91
+			MX8MM_IOMUXC_ENET_RX_CTL_ENET1_RGMII_RX_CTL	0x91
+			MX8MM_IOMUXC_ENET_TX_CTL_ENET1_RGMII_TX_CTL	0x1f
+			MX8MM_IOMUXC_SAI1_TXD6_GPIO4_IO18		0x19 /* IRQ# */
+			MX8MM_IOMUXC_SAI1_TXD7_GPIO4_IO19		0x19 /* RST# */
+		>;
+	};
+
+	pinctrl_gsc: gscgrp {
+		fsl,pins = <
+			MX8MM_IOMUXC_SAI1_TXD4_GPIO4_IO16	0x159
+		>;
+	};
+
+	pinctrl_i2c1: i2c1grp {
+		fsl,pins = <
+			MX8MM_IOMUXC_I2C1_SCL_I2C1_SCL		0x400001c3
+			MX8MM_IOMUXC_I2C1_SDA_I2C1_SDA		0x400001c3
+		>;
+	};
+
+	pinctrl_i2c2: i2c2grp {
+		fsl,pins = <
+			MX8MM_IOMUXC_I2C2_SCL_I2C2_SCL		0x400001c3
+			MX8MM_IOMUXC_I2C2_SDA_I2C2_SDA		0x400001c3
+		>;
+	};
+
+	pinctrl_i2c3: i2c3grp {
+		fsl,pins = <
+			MX8MM_IOMUXC_I2C3_SCL_I2C3_SCL		0x400001c3
+			MX8MM_IOMUXC_I2C3_SDA_I2C3_SDA		0x400001c3
+		>;
+	};
+
+	pinctrl_i2c4: i2c4grp {
+		fsl,pins = <
+			MX8MM_IOMUXC_I2C4_SCL_I2C4_SCL		0x400001c3
+			MX8MM_IOMUXC_I2C4_SDA_I2C4_SDA		0x400001c3
+		>;
+	};
+
+	pinctrl_ksz: kszgrp {
+		fsl,pins = <
+			MX8MM_IOMUXC_SAI1_TXD6_GPIO4_IO18	0x41
+			MX8MM_IOMUXC_SAI1_TXD7_GPIO4_IO19	0x41 /* RST# */
+		>;
+	};
+
+	pinctrl_pmic: pmicgrp {
+		fsl,pins = <
+			MX8MM_IOMUXC_SAI5_RXC_GPIO3_IO20	0x41
+		>;
+	};
+
+	pinctrl_reg_isouart: regisouartgrp {
+		fsl,pins = <
+			MX8MM_IOMUXC_GPIO1_IO13_GPIO1_IO13	0x40000041
+		>;
+	};
+
+	pinctrl_reg_ioexp: regioexpgrp {
+		fsl,pins = <
+			MX8MM_IOMUXC_SAI2_RXFS_GPIO4_IO21	0x40000041
+		>;
+	};
+
+	pinctrl_reg_wl: regwlgrp {
+		fsl,pins = <
+			MX8MM_IOMUXC_SAI5_MCLK_GPIO3_IO25	0x40000041
+		>;
+	};
+
+	pinctrl_reg_usb2: regusb1grp {
+		fsl,pins = <
+			MX8MM_IOMUXC_SAI1_TXD5_GPIO4_IO17	0x41
+			MX8MM_IOMUXC_GPIO1_IO15_USB2_OTG_OC	0x41
+		>;
+	};
+
+	pinctrl_spi1: spi1grp {
+		fsl,pins = <
+			MX8MM_IOMUXC_ECSPI1_SCLK_ECSPI1_SCLK	0x82
+			MX8MM_IOMUXC_ECSPI1_MOSI_ECSPI1_MOSI	0x82
+			MX8MM_IOMUXC_ECSPI1_MISO_ECSPI1_MISO	0x82
+			MX8MM_IOMUXC_ECSPI1_SS0_GPIO5_IO9	0x140
+		>;
+	};
+
+	pinctrl_uart1: uart1grp {
+		fsl,pins = <
+			MX8MM_IOMUXC_UART1_RXD_UART1_DCE_RX	0x140
+			MX8MM_IOMUXC_UART1_TXD_UART1_DCE_TX	0x140
+			MX8MM_IOMUXC_GPIO1_IO01_GPIO1_IO1	0x140
+			MX8MM_IOMUXC_GPIO1_IO10_GPIO1_IO10	0x140
+			MX8MM_IOMUXC_GPIO1_IO11_GPIO1_IO11	0x140
+			MX8MM_IOMUXC_GPIO1_IO12_GPIO1_IO12	0x140
+			MX8MM_IOMUXC_GPIO1_IO14_GPIO1_IO14	0x140
+		>;
+	};
+
+	pinctrl_uart1_gpio: uart1gpiogrp {
+		fsl,pins = <
+			MX8MM_IOMUXC_GPIO1_IO00_GPIO1_IO0	0x40000041 /* RS422# */
+			MX8MM_IOMUXC_GPIO1_IO03_GPIO1_IO3	0x40000041 /* RS485# */
+			MX8MM_IOMUXC_GPIO1_IO05_GPIO1_IO5	0x40000041 /* RS232# */
+		>;
+	};
+
+	pinctrl_uart2: uart2grp {
+		fsl,pins = <
+			MX8MM_IOMUXC_UART2_RXD_UART2_DCE_RX	0x140
+			MX8MM_IOMUXC_UART2_TXD_UART2_DCE_TX	0x140
+		>;
+	};
+
+	pinctrl_uart3: uart3grp {
+		fsl,pins = <
+			MX8MM_IOMUXC_UART3_RXD_UART3_DCE_RX	0x140
+			MX8MM_IOMUXC_UART3_TXD_UART3_DCE_TX	0x140
+			MX8MM_IOMUXC_SAI1_RXD7_GPIO4_IO9	0x140
+			MX8MM_IOMUXC_SAI1_TXFS_GPIO4_IO10	0x140
+		>;
+	};
+
+	pinctrl_uart3_gpio: uart3gpiogrp {
+		fsl,pins = <
+			MX8MM_IOMUXC_SAI1_RXD4_GPIO4_IO6	0x40000041 /* RS232# */
+			MX8MM_IOMUXC_SAI1_RXD5_GPIO4_IO7	0x40000041 /* RS422# */
+			MX8MM_IOMUXC_SAI1_RXD6_GPIO4_IO8	0x40000041 /* RS485# */
+		>;
+	};
+
+	pinctrl_uart4: uart4grp {
+		fsl,pins = <
+			MX8MM_IOMUXC_UART4_RXD_UART4_DCE_RX	0x140
+			MX8MM_IOMUXC_UART4_TXD_UART4_DCE_TX	0x140
+			MX8MM_IOMUXC_ECSPI2_MOSI_GPIO5_IO11	0x140
+			MX8MM_IOMUXC_ECSPI2_MISO_GPIO5_IO12	0x140
+		>;
+	};
+
+	pinctrl_uart4_gpio: uart4gpiogrp {
+		fsl,pins = <
+
+			MX8MM_IOMUXC_ECSPI2_SCLK_GPIO5_IO10	0x40000041 /* RS232# */
+			MX8MM_IOMUXC_ECSPI2_SS0_GPIO5_IO13	0x40000041 /* RS422# */
+			MX8MM_IOMUXC_SAI2_MCLK_GPIO4_IO27	0x40000041 /* RS485# */
+		>;
+	};
+
+	pinctrl_usdhc1: usdhc1grp {
+		fsl,pins = <
+			MX8MM_IOMUXC_SD1_CLK_USDHC1_CLK		0x190
+			MX8MM_IOMUXC_SD1_CMD_USDHC1_CMD		0x1d0
+			MX8MM_IOMUXC_SD1_DATA0_USDHC1_DATA0	0x1d0
+			MX8MM_IOMUXC_SD1_DATA1_USDHC1_DATA1	0x1d0
+			MX8MM_IOMUXC_SD1_DATA2_USDHC1_DATA2	0x1d0
+			MX8MM_IOMUXC_SD1_DATA3_USDHC1_DATA3	0x1d0
+		>;
+	};
+
+	pinctrl_usdhc2: usdhc2grp {
+		fsl,pins = <
+			MX8MM_IOMUXC_SD2_CLK_USDHC2_CLK		0x190
+			MX8MM_IOMUXC_SD2_CMD_USDHC2_CMD		0x1d0
+			MX8MM_IOMUXC_SD2_DATA0_USDHC2_DATA0	0x1d0
+			MX8MM_IOMUXC_SD2_DATA1_USDHC2_DATA1	0x1d0
+			MX8MM_IOMUXC_SD2_DATA2_USDHC2_DATA2	0x1d0
+			MX8MM_IOMUXC_SD2_DATA3_USDHC2_DATA3	0x1d0
+		>;
+	};
+
+	pinctrl_usdhc2_100mhz: usdhc2-100mhzgrp {
+		fsl,pins = <
+			MX8MM_IOMUXC_SD2_CLK_USDHC2_CLK		0x194
+			MX8MM_IOMUXC_SD2_CMD_USDHC2_CMD		0x1d4
+			MX8MM_IOMUXC_SD2_DATA0_USDHC2_DATA0	0x1d4
+			MX8MM_IOMUXC_SD2_DATA1_USDHC2_DATA1	0x1d4
+			MX8MM_IOMUXC_SD2_DATA2_USDHC2_DATA2	0x1d4
+			MX8MM_IOMUXC_SD2_DATA3_USDHC2_DATA3	0x1d4
+		>;
+	};
+
+	pinctrl_usdhc2_200mhz: usdhc2-200mhzgrp {
+		fsl,pins = <
+			MX8MM_IOMUXC_SD2_CLK_USDHC2_CLK		0x196
+			MX8MM_IOMUXC_SD2_CMD_USDHC2_CMD		0x1d6
+			MX8MM_IOMUXC_SD2_DATA0_USDHC2_DATA0	0x1d6
+			MX8MM_IOMUXC_SD2_DATA1_USDHC2_DATA1	0x1d6
+			MX8MM_IOMUXC_SD2_DATA2_USDHC2_DATA2	0x1d6
+			MX8MM_IOMUXC_SD2_DATA3_USDHC2_DATA3	0x1d6
+		>;
+	};
+
+	pinctrl_usdhc2_gpio: usdhc2-gpiogrp {
+		fsl,pins = <
+			MX8MM_IOMUXC_SD2_CD_B_GPIO2_IO12	0x1c4
+			MX8MM_IOMUXC_GPIO1_IO04_USDHC2_VSELECT  0x1d0
+		>;
+	};
+
+	pinctrl_usdhc3: usdhc3grp {
+		fsl,pins = <
+			MX8MM_IOMUXC_NAND_WE_B_USDHC3_CLK	0x190
+			MX8MM_IOMUXC_NAND_WP_B_USDHC3_CMD	0x1d0
+			MX8MM_IOMUXC_NAND_DATA04_USDHC3_DATA0	0x1d0
+			MX8MM_IOMUXC_NAND_DATA05_USDHC3_DATA1	0x1d0
+			MX8MM_IOMUXC_NAND_DATA06_USDHC3_DATA2	0x1d0
+			MX8MM_IOMUXC_NAND_DATA07_USDHC3_DATA3	0x1d0
+			MX8MM_IOMUXC_NAND_RE_B_USDHC3_DATA4	0x1d0
+			MX8MM_IOMUXC_NAND_CE2_B_USDHC3_DATA5	0x1d0
+			MX8MM_IOMUXC_NAND_CE3_B_USDHC3_DATA6	0x1d0
+			MX8MM_IOMUXC_NAND_CLE_USDHC3_DATA7	0x1d0
+			MX8MM_IOMUXC_NAND_CE1_B_USDHC3_STROBE	0x190
+		>;
+	};
+
+	pinctrl_usdhc3_100mhz: usdhc3-100mhzgrp {
+		fsl,pins = <
+			MX8MM_IOMUXC_NAND_WE_B_USDHC3_CLK	0x194
+			MX8MM_IOMUXC_NAND_WP_B_USDHC3_CMD	0x1d4
+			MX8MM_IOMUXC_NAND_DATA04_USDHC3_DATA0	0x1d4
+			MX8MM_IOMUXC_NAND_DATA05_USDHC3_DATA1	0x1d4
+			MX8MM_IOMUXC_NAND_DATA06_USDHC3_DATA2	0x1d4
+			MX8MM_IOMUXC_NAND_DATA07_USDHC3_DATA3	0x1d4
+			MX8MM_IOMUXC_NAND_RE_B_USDHC3_DATA4	0x1d4
+			MX8MM_IOMUXC_NAND_CE2_B_USDHC3_DATA5	0x1d4
+			MX8MM_IOMUXC_NAND_CE3_B_USDHC3_DATA6	0x1d4
+			MX8MM_IOMUXC_NAND_CLE_USDHC3_DATA7	0x1d4
+			MX8MM_IOMUXC_NAND_CE1_B_USDHC3_STROBE	0x194
+		>;
+	};
+
+	pinctrl_usdhc3_200mhz: usdhc3-200mhzgrp {
+		fsl,pins = <
+			MX8MM_IOMUXC_NAND_WE_B_USDHC3_CLK	0x196
+			MX8MM_IOMUXC_NAND_WP_B_USDHC3_CMD	0x1d6
+			MX8MM_IOMUXC_NAND_DATA04_USDHC3_DATA0	0x1d6
+			MX8MM_IOMUXC_NAND_DATA05_USDHC3_DATA1	0x1d6
+			MX8MM_IOMUXC_NAND_DATA06_USDHC3_DATA2	0x1d6
+			MX8MM_IOMUXC_NAND_DATA07_USDHC3_DATA3	0x1d6
+			MX8MM_IOMUXC_NAND_RE_B_USDHC3_DATA4	0x1d6
+			MX8MM_IOMUXC_NAND_CE2_B_USDHC3_DATA5	0x1d6
+			MX8MM_IOMUXC_NAND_CE3_B_USDHC3_DATA6	0x1d6
+			MX8MM_IOMUXC_NAND_CLE_USDHC3_DATA7	0x1d6
+			MX8MM_IOMUXC_NAND_CE1_B_USDHC3_STROBE	0x196
+		>;
+	};
+
+	pinctrl_wdog: wdoggrp {
+		fsl,pins = <
+			MX8MM_IOMUXC_GPIO1_IO02_WDOG1_WDOG_B	0xc6
+		>;
+	};
+};
+
+&cpu_alert0 {
+	temperature = <95000>;
+	hysteresis = <2000>;
+	type = "passive";
+};
+
+&cpu_crit0 {
+	temperature = <105000>;
+	hysteresis = <2000>;
+	type = "critical";
+};
-- 
2.17.1

Re: [PATCH 1/4] dt-bindings: at25: add Fujitsu MB85RS4MT

[Michael Walle]

Hi Tim,

Am 2021-03-09 23:00, schrieb Tim Harvey:
> Document the compatible value for the Fujitsu MB85RS4MT SPI
> FRAM EEPROM device so that it can be used in DTS files.
> 
> This is a 512KiB FRAM EEPROM.
> 
> Signed-off-by: Tim Harvey <tharvey@gateworks.com>
> ---
>  Documentation/devicetree/bindings/eeprom/at25.yaml | 1 +
>  1 file changed, 1 insertion(+)
> 
> diff --git a/Documentation/devicetree/bindings/eeprom/at25.yaml
> b/Documentation/devicetree/bindings/eeprom/at25.yaml
> index 6a2dc8b3ed14..f594db72b711 100644
> --- a/Documentation/devicetree/bindings/eeprom/at25.yaml
> +++ b/Documentation/devicetree/bindings/eeprom/at25.yaml
> @@ -26,6 +26,7 @@ properties:
>                - anvo,anv32e61w
>                - atmel,at25256B
>                - fujitsu,mb85rs1mt
> +              - fujitsu,mb85rs4mt
>                - fujitsu,mb85rs64
>                - microchip,at25160bn
>                - microchip,25lc040

Hm, the driver is spi-nor but this is for the at25 driver. Is
this correct? Doesn't it work if you just add the ID to
spi-nor/fujitsu.c and use 'compatible = "jedec,spi-nor' ?

-michael

Re: [PATCH 1/4] dt-bindings: at25: add Fujitsu MB85RS4MT

[Tudor.Ambarus]

On 3/10/21 12:59 AM, Michael Walle wrote:
> EXTERNAL EMAIL: Do not click links or open attachments unless you know the content is safe
> 
> Hi Tim,
> 
> Am 2021-03-09 23:00, schrieb Tim Harvey:
>> Document the compatible value for the Fujitsu MB85RS4MT SPI
>> FRAM EEPROM device so that it can be used in DTS files.
>>
>> This is a 512KiB FRAM EEPROM.
>>
>> Signed-off-by: Tim Harvey <tharvey@gateworks.com>
>> ---
>>  Documentation/devicetree/bindings/eeprom/at25.yaml | 1 +
>>  1 file changed, 1 insertion(+)
>>
>> diff --git a/Documentation/devicetree/bindings/eeprom/at25.yaml
>> b/Documentation/devicetree/bindings/eeprom/at25.yaml
>> index 6a2dc8b3ed14..f594db72b711 100644
>> --- a/Documentation/devicetree/bindings/eeprom/at25.yaml
>> +++ b/Documentation/devicetree/bindings/eeprom/at25.yaml
>> @@ -26,6 +26,7 @@ properties:
>>                - anvo,anv32e61w
>>                - atmel,at25256B
>>                - fujitsu,mb85rs1mt
>> +              - fujitsu,mb85rs4mt
>>                - fujitsu,mb85rs64
>>                - microchip,at25160bn
>>                - microchip,25lc040
> 
> Hm, the driver is spi-nor but this is for the at25 driver. Is
> this correct? Doesn't it work if you just add the ID to
> spi-nor/fujitsu.c and use 'compatible = "jedec,spi-nor' ?
> 

Tim,

Can you try and see if you can work with this flash by setting "atmel,at25"
compatible?

There are some SPI NOR-like flashes MRAMs, FRAMs, even EEPROMs, that share
a part of opcodes of SPI NORs, but have slightly different characteristics
(ex. no erase, no wait times for writes on FRAMs).
See the patch series submitted by Richard, that I have stalled:
https://patchwork.ozlabs.org/project/linux-mtd/list/?series=208584&state=*

I now have time to allocate for this, I'll study all and come up with a proposal
in one or two weeks.

Cheers,
ta

Re: [PATCH 1/4] dt-bindings: at25: add Fujitsu MB85RS4MT

[Tim Harvey]

On Tue, Mar 9, 2021 at 2:59 PM Michael Walle <michael@walle.cc> wrote:
>
> Hi Tim,
>
> Am 2021-03-09 23:00, schrieb Tim Harvey:
> > Document the compatible value for the Fujitsu MB85RS4MT SPI
> > FRAM EEPROM device so that it can be used in DTS files.
> >
> > This is a 512KiB FRAM EEPROM.
> >
> > Signed-off-by: Tim Harvey <tharvey@gateworks.com>
> > ---
> >  Documentation/devicetree/bindings/eeprom/at25.yaml | 1 +
> >  1 file changed, 1 insertion(+)
> >
> > diff --git a/Documentation/devicetree/bindings/eeprom/at25.yaml
> > b/Documentation/devicetree/bindings/eeprom/at25.yaml
> > index 6a2dc8b3ed14..f594db72b711 100644
> > --- a/Documentation/devicetree/bindings/eeprom/at25.yaml
> > +++ b/Documentation/devicetree/bindings/eeprom/at25.yaml
> > @@ -26,6 +26,7 @@ properties:
> >                - anvo,anv32e61w
> >                - atmel,at25256B
> >                - fujitsu,mb85rs1mt
> > +              - fujitsu,mb85rs4mt
> >                - fujitsu,mb85rs64
> >                - microchip,at25160bn
> >                - microchip,25lc040
>
> Hm, the driver is spi-nor but this is for the at25 driver. Is
> this correct? Doesn't it work if you just add the ID to
> spi-nor/fujitsu.c and use 'compatible = "jedec,spi-nor' ?
>

Michael,

Yes it works just fine as 'compatible = "jedec,spi-nor"' and that
makes sense. I'll drop this patch and update my device-tree
accordingly.

Thanks,

Tim

Re: [PATCH 1/4] dt-bindings: at25: add Fujitsu MB85RS4MT

[Tim Harvey]

'On Tue, Mar 9, 2021 at 9:34 PM <Tudor.Ambarus@microchip.com> wrote:
>
> On 3/10/21 12:59 AM, Michael Walle wrote:
> > EXTERNAL EMAIL: Do not click links or open attachments unless you know the content is safe
> >
> > Hi Tim,
> >
> > Am 2021-03-09 23:00, schrieb Tim Harvey:
> >> Document the compatible value for the Fujitsu MB85RS4MT SPI
> >> FRAM EEPROM device so that it can be used in DTS files.
> >>
> >> This is a 512KiB FRAM EEPROM.
> >>
> >> Signed-off-by: Tim Harvey <tharvey@gateworks.com>
> >> ---
> >>  Documentation/devicetree/bindings/eeprom/at25.yaml | 1 +
> >>  1 file changed, 1 insertion(+)
> >>
> >> diff --git a/Documentation/devicetree/bindings/eeprom/at25.yaml
> >> b/Documentation/devicetree/bindings/eeprom/at25.yaml
> >> index 6a2dc8b3ed14..f594db72b711 100644
> >> --- a/Documentation/devicetree/bindings/eeprom/at25.yaml
> >> +++ b/Documentation/devicetree/bindings/eeprom/at25.yaml
> >> @@ -26,6 +26,7 @@ properties:
> >>                - anvo,anv32e61w
> >>                - atmel,at25256B
> >>                - fujitsu,mb85rs1mt
> >> +              - fujitsu,mb85rs4mt
> >>                - fujitsu,mb85rs64
> >>                - microchip,at25160bn
> >>                - microchip,25lc040
> >
> > Hm, the driver is spi-nor but this is for the at25 driver. Is
> > this correct? Doesn't it work if you just add the ID to
> > spi-nor/fujitsu.c and use 'compatible = "jedec,spi-nor' ?
> >
>
> Tim,
>
> Can you try and see if you can work with this flash by setting "atmel,at25"
> compatible?

It does not work with 'atmel,at25'. I was fooled into adding it to
at25.yaml because that is where the mb85rs1mt compatible was. I
suppose at some time the drivers were split as mb85rs1mt is clearly in
the spi-nor driver now.

I will drop the patch to at25.yaml and now that I realize all I need
is 'jedec,spi-nor' I won't need any bindings patch.

>
> There are some SPI NOR-like flashes MRAMs, FRAMs, even EEPROMs, that share
> a part of opcodes of SPI NORs, but have slightly different characteristics
> (ex. no erase, no wait times for writes on FRAMs).
> See the patch series submitted by Richard, that I have stalled:
> https://patchwork.ozlabs.org/project/linux-mtd/list/?series=208584&state=*
>

This series makes sense to me. I tested it and indeed it provides a
vast performance improvement. Richards patch would collide with my
patch that adds the mb85rs4mt detection. Let me know what you're going
to do there and if you need me to rebase 'mtd: spi-nor: fujitsu: add
support for MB85RS4MT' on top of it.

Best regards,

Tim

Re: [PATCH 3/4] dt-bindings: arm: imx: add imx8mm gw7901 support

[Rob Herring]

On Tue, 09 Mar 2021 14:00:13 -0800, Tim Harvey wrote:
> The Gateworks GW7901 is an ARM based single board computer (SBC)
> featuring:
>  - i.MX8M Mini SoC
>  - LPDDR4 DRAM
>  - eMMC FLASH
>  - SPI FRAM
>  - Gateworks System Controller (GSC)
>  - Atmel ATECC Crypto Authentication
>  - USB 2.0
>  - Microchip GbE Switch
>  - Multiple multi-protocol RS232/RS485/RS422 Serial ports
>  - onboard 802.11ac WiFi / BT
>  - microSD socket
>  - miniPCIe socket with PCIe, USB 2.0 and dual SIM sockets
>  - Wide range DC power input
>  - 802.3at PoE
> 
> Signed-off-by: Tim Harvey <tharvey@gateworks.com>
> ---
>  Documentation/devicetree/bindings/arm/fsl.yaml | 1 +
>  1 file changed, 1 insertion(+)
> 

Acked-by: Rob Herring <robh@kernel.org>