ARM: dts: at91: sama5d27_wlsom1: add SAMA5D27 wlsom1 and wlsom1-ek

This is the addition of a new Evaluation Kit the SAMA5D27-WLSOM1-EK.
It's based on the Microchip WireLess SoM which contains the
SAMA5D27 LPDDR2 2Gbits SiP.

[nicolas.ferre@microchip.com]: initial implementation
Signed-off-by: Nicolas Ferre <nicolas.ferre@microchip.com>
[eugen.hristev@microchip.com]: ported to new kernel version,
[eugen.hristev@microchip.com]: addition of peripherals (adc, pmic, qspi, uart)
Signed-off-by: Eugen Hristev <eugen.hristev@microchip.com>
Link: https://lore.kernel.org/r/1573543139-8533-4-git-send-email-eugen.hristev@microchip.comSigned-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>

arch/arm/boot/dts/Makefile

@@ -49,6 +49,7 @@ dtb-$(CONFIG_SOC_SAM_V7) += \
 	at91-kizbox3-hs.dtb \
 	at91-nattis-2-natte-2.dtb \
 	at91-sama5d27_som1_ek.dtb \
+	at91-sama5d27_wlsom1_ek.dtb \
 	at91-sama5d2_ptc_ek.dtb \
 	at91-sama5d2_xplained.dtb \
 	at91-sama5d3_xplained.dtb \

arch/arm/boot/dts/at91-sama5d27_wlsom1.dtsi

+// SPDX-License-Identifier: (GPL-2.0+ OR MIT)
+/*
+ * at91-sama5d27_wlsom1.dtsi - Device Tree file for SAMA5D27 WLSOM1
+ *
+ * Copyright (C) 2019 Microchip Technology Inc. and its subsidiaries
+ *
+ * Author: Nicolas Ferre <nicolas.ferre@microcihp.com>
+ * Author: Eugen Hristev <eugen.hristev@microcihp.com>
+ */
+#include "sama5d2.dtsi"
+#include "sama5d2-pinfunc.h"
+#include <dt-bindings/gpio/gpio.h>
+#include <dt-bindings/mfd/atmel-flexcom.h>
+#include <dt-bindings/pinctrl/at91.h>
+
+/ {
+	model = "Microchip SAMA5D27 WLSOM1";
+	compatible = "microchip,sama5d27-wlsom1", "atmel,sama5d27", "atmel,sama5d2", "atmel,sama5";
+
+	clocks {
+		slow_xtal {
+			clock-frequency = <32768>;
+		};
+
+		main_xtal {
+			clock-frequency = <24000000>;
+		};
+	};
+};
+
+&flx1 {
+	atmel,flexcom-mode = <ATMEL_FLEXCOM_MODE_USART>;
+
+	uart6: serial@200 {
+		compatible = "atmel,at91sam9260-usart";
+		reg = <0x200 0x200>;
+		interrupts = <20 IRQ_TYPE_LEVEL_HIGH 7>;
+		dmas = <&dma0
+			(AT91_XDMAC_DT_MEM_IF(0) | AT91_XDMAC_DT_PER_IF(1) |
+			 AT91_XDMAC_DT_PERID(13))>,
+		       <&dma0
+			(AT91_XDMAC_DT_MEM_IF(0) | AT91_XDMAC_DT_PER_IF(1) |
+			 AT91_XDMAC_DT_PERID(14))>;
+		dma-names = "tx", "rx";
+		clocks = <&pmc PMC_TYPE_PERIPHERAL 20>;
+		clock-names = "usart";
+		pinctrl-0 = <&pinctrl_flx1_default>;
+		pinctrl-names = "default";
+	};
+};
+
+&i2c0 {
+	pinctrl-0 = <&pinctrl_i2c0_default>;
+	pinctrl-names = "default";
+	status = "okay";
+};
+
+&i2c1 {
+	dmas = <0>, <0>;
+	pinctrl-names = "default";
+	pinctrl-0 = <&pinctrl_i2c1_default>;
+	status = "okay";
+
+	mcp16502@5b {
+		compatible = "microchip,mcp16502";
+		reg = <0x5b>;
+		status = "okay";
+		lpm-gpios = <&pioBU 0 GPIO_ACTIVE_LOW>;
+
+		regulators {
+			vdd_3v3: VDD_IO {
+				regulator-name = "VDD_IO";
+				regulator-min-microvolt = <1200000>;
+				regulator-max-microvolt = <3700000>;
+				regulator-initial-mode = <2>;
+				regulator-allowed-modes = <2>, <4>;
+				regulator-always-on;
+
+				regulator-state-standby {
+					regulator-on-in-suspend;
+					regulator-mode = <4>;
+				};
+
+				regulator-state-mem {
+					regulator-off-in-suspend;
+					regulator-mode = <4>;
+				};
+			};
+
+			vddio_ddr: VDD_DDR {
+				regulator-name = "VDD_DDR";
+				regulator-min-microvolt = <600000>;
+				regulator-max-microvolt = <1850000>;
+				regulator-initial-mode = <2>;
+				regulator-allowed-modes = <2>, <4>;
+				regulator-always-on;
+
+				regulator-state-standby {
+					regulator-on-in-suspend;
+					regulator-suspend-microvolt = <1200000>;
+					regulator-changeable-in-suspend;
+					regulator-mode = <4>;
+				};
+
+				regulator-state-mem {
+					regulator-on-in-suspend;
+					regulator-suspend-microvolt = <1200000>;
+					regulator-changeable-in-suspend;
+					regulator-mode = <4>;
+				};
+			};
+
+			vdd_core: VDD_CORE {
+				regulator-name = "VDD_CORE";
+				regulator-min-microvolt = <600000>;
+				regulator-max-microvolt = <1850000>;
+				regulator-initial-mode = <2>;
+				regulator-allowed-modes = <2>, <4>;
+				regulator-always-on;
+
+				regulator-state-standby {
+					regulator-on-in-suspend;
+					regulator-mode = <4>;
+				};
+
+				regulator-state-mem {
+					regulator-off-in-suspend;
+					regulator-mode = <4>;
+				};
+			};
+
+			vdd_ddr: VDD_OTHER {
+				regulator-name = "VDD_OTHER";
+				regulator-min-microvolt = <1800000>;
+				regulator-max-microvolt = <1800000>;
+				regulator-initial-mode = <2>;
+				regulator-allowed-modes = <2>, <4>;
+				regulator-always-on;
+
+				regulator-state-standby {
+					regulator-on-in-suspend;
+					regulator-suspend-microvolt = <1800000>;
+					regulator-changeable-in-suspend;
+					regulator-mode = <4>;
+				};
+
+				regulator-state-mem {
+					regulator-on-in-suspend;
+					regulator-suspend-microvolt = <1800000>;
+					regulator-changeable-in-suspend;
+					regulator-mode = <4>;
+				};
+			};
+
+			LDO1 {
+				regulator-name = "LDO1";
+				regulator-min-microvolt = <1200000>;
+				regulator-max-microvolt = <3700000>;
+				regulator-always-on;
+
+				regulator-state-standby {
+					regulator-on-in-suspend;
+				};
+
+				regulator-state-mem {
+					regulator-off-in-suspend;
+				};
+			};
+
+			LDO2 {
+				regulator-name = "LDO2";
+				regulator-min-microvolt = <1200000>;
+				regulator-max-microvolt = <3700000>;
+				regulator-always-on;
+
+				regulator-state-standby {
+					regulator-on-in-suspend;
+				};
+
+				regulator-state-mem {
+					regulator-off-in-suspend;
+				};
+			};
+		};
+	};
+};
+
+&macb0 {
+	pinctrl-names = "default";
+	pinctrl-0 = <&pinctrl_macb0_default>;
+	phy-mode = "rmii";
+
+	ethernet-phy@0 {
+		reg = <0x0>;
+		interrupt-parent = <&pioA>;
+		interrupts = <PIN_PB24 IRQ_TYPE_LEVEL_LOW>;
+		pinctrl-names = "default";
+		pinctrl-0 = <&pinctrl_macb0_phy_irq>;
+	};
+};
+
+&pmc {
+	atmel,osc-bypass;
+};
+
+&qspi1 {
+	pinctrl-names = "default";
+	pinctrl-0 = <&pinctrl_qspi1_default>;
+	status = "disabled";
+
+	qspi1_flash: spi_flash@0 {
+		#address-cells = <1>;
+		#size-cells = <1>;
+		compatible = "jedec,spi-nor";
+		reg = <0>;
+		spi-max-frequency = <80000000>;
+		spi-rx-bus-width = <4>;
+		spi-tx-bus-width = <4>;
+		m25p,fast-read;
+		status = "disabled";
+
+		at91bootstrap@0 {
+			label = "at91bootstrap";
+			reg = <0x0 0x40000>;
+		};
+
+		bootloader@40000 {
+			label = "bootloader";
+			reg = <0x40000 0xc0000>;
+		};
+
+		bootloaderenvred@100000 {
+			label = "bootloader env redundant";
+			reg = <0x100000 0x40000>;
+		};
+
+		bootloaderenv@140000 {
+			label = "bootloader env";
+			reg = <0x140000 0x40000>;
+		};
+
+		dtb@180000 {
+			label = "device tree";
+			reg = <0x180000 0x80000>;
+		};
+
+		kernel@200000 {
+			label = "kernel";
+			reg = <0x200000 0x600000>;
+		};
+	};
+};
+
+&pioA {
+	pinctrl_flx1_default: flx1_usart_default {
+		pinmux = <PIN_PA24__FLEXCOM1_IO0>,
+			 <PIN_PA23__FLEXCOM1_IO1>,
+			 <PIN_PA25__FLEXCOM1_IO3>,
+			 <PIN_PA26__FLEXCOM1_IO4>;
+		bias-disable;
+	};
+
+	pinctrl_i2c0_default: i2c0_default {
+		pinmux = <PIN_PD21__TWD0>,
+			 <PIN_PD22__TWCK0>;
+		bias-disable;
+	};
+
+	pinctrl_i2c1_default: i2c1_default {
+		pinmux = <PIN_PD19__TWD1>,
+			 <PIN_PD20__TWCK1>;
+		bias-disable;
+	};
+
+	pinctrl_macb0_default: macb0_default {
+		pinmux = <PIN_PB14__GTXCK>,
+			 <PIN_PB15__GTXEN>,
+			 <PIN_PB16__GRXDV>,
+			 <PIN_PB17__GRXER>,
+			 <PIN_PB18__GRX0>,
+			 <PIN_PB19__GRX1>,
+			 <PIN_PB20__GTX0>,
+			 <PIN_PB21__GTX1>,
+			 <PIN_PB22__GMDC>,
+			 <PIN_PB23__GMDIO>;
+		bias-disable;
+	};
+
+	pinctrl_macb0_phy_irq: macb0_phy_irq {
+		pinmux = <PIN_PB24__GPIO>;
+		bias-disable;
+	};
+
+	pinctrl_qspi1_default: qspi1_default {
+		pinmux = <PIN_PB5__QSPI1_SCK>,
+			 <PIN_PB6__QSPI1_CS>,
+			 <PIN_PB7__QSPI1_IO0>,
+			 <PIN_PB8__QSPI1_IO1>,
+			 <PIN_PB9__QSPI1_IO2>,
+			 <PIN_PB10__QSPI1_IO3>;
+		bias-pull-up;
+	};
+};
+

arch/arm/boot/dts/at91-sama5d27_wlsom1_ek.dts

+// SPDX-License-Identifier: (GPL-2.0+ OR MIT)
+/*
+ * at91-sama5d27_wlsom1_ek.dts - Device Tree file for SAMA5D27 WLSOM1 EK
+ *
+ * Copyright (C) 2019 Microchip Technology Inc. and its subsidiaries
+ *
+ * Author: Nicolas Ferre <nicolas.ferre@microcihp.com>
+ */
+/dts-v1/;
+#include "at91-sama5d27_wlsom1.dtsi"
+
+/ {
+	model = "Microchip SAMA5D27 WLSOM1 EK";
+	compatible = "microchip,sama5d27-wlsom1-ek", "microchip,sama5d27-wlsom1", "atmel,sama5d27", "atmel,sama5d2", "atmel,sama5";
+
+	aliases {
+		serial0 = &uart0;	/* DBGU */
+		serial1 = &uart6;	/* BT */
+		serial2 = &uart5;	/* mikro BUS 2 */
+		serial3 = &uart3;	/* mikro BUS 1 */
+		i2c1	= &i2c1;
+	};
+
+	chosen {
+		stdout-path = "serial0:115200n8";
+	};
+
+	gpio_keys {
+		compatible = "gpio-keys";
+
+		pinctrl-names = "default";
+		pinctrl-0 = <&pinctrl_key_gpio_default>;
+		status = "okay";
+
+		sw4 {
+			label = "USER BUTTON";
+			gpios = <&pioA PIN_PB2 GPIO_ACTIVE_LOW>;
+			linux,code = <0x104>;
+			wakeup-source;
+		};
+	};
+
+	leds {
+		compatible = "gpio-leds";
+		pinctrl-names = "default";
+		pinctrl-0 = <&pinctrl_led_gpio_default>;
+		status = "okay";
+
+		red {
+			label = "red";
+			gpios = <&pioA PIN_PA6 GPIO_ACTIVE_HIGH>;
+		};
+
+		green {
+			label = "green";
+			gpios = <&pioA PIN_PA7 GPIO_ACTIVE_HIGH>;
+		};
+
+		blue {
+			label = "blue";
+			gpios = <&pioA PIN_PA8 GPIO_ACTIVE_HIGH>;
+			linux,default-trigger = "heartbeat";
+		};
+	};
+};
+
+&adc {
+	vddana-supply = <&vdd_3v3>;
+	vref-supply = <&vdd_3v3>;
+	pinctrl-names = "default";
+	pinctrl-0 = <&pinctrl_adc_default>;
+	status = "okay";
+};
+
+&flx0 {
+	atmel,flexcom-mode = <ATMEL_FLEXCOM_MODE_USART>;
+	status = "okay";
+
+	uart5: serial@200 {
+		compatible = "atmel,at91sam9260-usart";
+		reg = <0x200 0x200>;
+		interrupts = <19 IRQ_TYPE_LEVEL_HIGH 7>;
+		dmas = <&dma0
+			(AT91_XDMAC_DT_MEM_IF(0) | AT91_XDMAC_DT_PER_IF(1) |
+			 AT91_XDMAC_DT_PERID(11))>,
+		       <&dma0
+			(AT91_XDMAC_DT_MEM_IF(0) | AT91_XDMAC_DT_PER_IF(1) |
+			 AT91_XDMAC_DT_PERID(12))>;
+		dma-names = "tx", "rx";
+		clocks = <&pmc PMC_TYPE_PERIPHERAL 19>;
+		clock-names = "usart";
+		pinctrl-0 = <&pinctrl_flx0_default>;
+		pinctrl-names = "default";
+		atmel,use-dma-rx;
+		atmel,use-dma-tx;
+		status = "okay";
+	};
+};
+
+&flx1 {
+	status = "okay";
+
+	uart6: serial@200 {
+		atmel,use-dma-rx;
+		atmel,use-dma-tx;
+		status = "okay";
+	};
+};
+
+&macb0 {
+	status = "okay";
+};
+
+&pioA {
+	/*
+	 * There is no real pinmux for ADC, if the pin
+	 * is not requested by another peripheral then
+	 * the muxing is done when channel is enabled.
+	 * Requesting pins for ADC is GPIO is
+	 * encouraged to prevent conflicts and to
+	 * disable bias in order to be in the same
+	 * state when the pin is not muxed to the adc.
+	 */
+	pinctrl_adc_default: adc_default {
+		pinmux = <PIN_PD25__GPIO>,
+			 <PIN_PD26__GPIO>;
+		bias-disable;
+	};
+
+	pinctrl_flx0_default: flx0_usart_default {
+		pinmux = <PIN_PB28__FLEXCOM0_IO0>,
+			 <PIN_PB29__FLEXCOM0_IO1>;
+		bias-disable;
+	};
+
+	pinctrl_key_gpio_default: key_gpio_default {
+		pinmux = <PIN_PB2__GPIO>;
+		bias-pull-up;
+	};
+
+	pinctrl_led_gpio_default: led_gpio_default {
+		pinmux = <PIN_PA6__GPIO>,
+			 <PIN_PA7__GPIO>,
+			 <PIN_PA8__GPIO>;
+		bias-pull-down;
+	};
+
+	pinctrl_sdmmc0_default: sdmmc0_default {
+		cmd_data {
+			pinmux = <PIN_PA1__SDMMC0_CMD>,
+				 <PIN_PA2__SDMMC0_DAT0>,
+				 <PIN_PA3__SDMMC0_DAT1>,
+				 <PIN_PA4__SDMMC0_DAT2>,
+				 <PIN_PA5__SDMMC0_DAT3>;
+			bias-disable;
+		};
+
+		ck_cd_vddsel {
+			pinmux = <PIN_PA0__SDMMC0_CK>,
+				 <PIN_PA11__SDMMC0_VDDSEL>,
+				 <PIN_PA12__SDMMC0_WP>,
+				 <PIN_PA13__SDMMC0_CD>;
+			bias-disable;
+		};
+	};
+
+	pinctrl_uart0_default: uart0_default {
+		pinmux = <PIN_PB26__URXD0>,
+			 <PIN_PB27__UTXD0>;
+		bias-disable;
+	};
+
+	pinctrl_uart3_default: uart3_default {
+		pinmux = <PIN_PB11__URXD3>,
+			 <PIN_PB12__UTXD3>;
+		bias-disable;
+	};
+
+	pinctrl_pwm0_default: pwm0_default {
+		pinmux = <PIN_PA31__PWML0>,
+			 <PIN_PA30__PWMH0>;
+		bias-disable;
+	};
+
+	pinctrl_usb_default: usb_default {
+		pinmux = <PIN_PA10__GPIO>;
+		bias-disable;
+	};
+};
+
+&pwm0 {
+	pinctrl-names = "default";
+	pinctrl-0 = <&pinctrl_pwm0_default>;
+	status = "okay";
+};
+
+&qspi1 {
+	status = "okay";
+
+	qspi1_flash: spi_flash@0 {
+		status = "okay";
+	};
+};
+
+&sdmmc0 {
+	bus-width = <4>;
+	mmc-ddr-3_3v;
+	pinctrl-names = "default";
+	pinctrl-0 = <&pinctrl_sdmmc0_default>;
+	status = "okay";
+};
+
+&shutdown_controller {
+	atmel,shdwc-debouncer = <976>;
+	atmel,wakeup-rtc-timer;
+
+	input@0 {
+		reg = <0>;
+		atmel,wakeup-type = "low";
+	};
+};
+
+&tcb0 {
+	timer0: timer@0 {
+		compatible = "atmel,tcb-timer";
+		reg = <0>;
+	};
+
+	timer1: timer@1 {
+		compatible = "atmel,tcb-timer";
+		reg = <1>;
+	};
+};
+
+&uart0 {
+	pinctrl-names = "default";
+	pinctrl-0 = <&pinctrl_uart0_default>;
+	atmel,use-dma-rx;
+	atmel,use-dma-tx;
+	status = "okay";
+};
+
+&uart3 {
+	pinctrl-names = "default";
+	pinctrl-0 = <&pinctrl_uart3_default>;
+	atmel,use-dma-rx;
+	atmel,use-dma-tx;
+	status = "okay";
+};
+
+&usb1 {
+	num-ports = <3>;
+	atmel,vbus-gpio = <0
+			   &pioA PIN_PA10 GPIO_ACTIVE_HIGH
+			   0
+			  >;
+	pinctrl-names = "default";
+	pinctrl-0 = <&pinctrl_usb_default>;
+	status = "okay";
+};
+
+&usb2 {
+	phy_type = "hsic";
+	status = "okay";
+};
+
+&watchdog {
+	status = "okay";
+};
+