ARM: dts: at91: add dts file for sama5d4ek

Add the device tree file for sama5d4ek board.

The dts file is copied from Linux-4.4, do the following changes.
 - add the "u-boot,dm-pre-reloc" property to determine which nodes
   which are needed by SPL and by the board_init_f stage.
 - fix the compilation warning.

Signed-off-by: Wenyou Yang <wenyou.yang@atmel.com>

2 files changed, 344 insertions, 0 deletions

diff --git a/arch/arm/dts/Makefile b/arch/arm/dts/Makefile
index a6f947cb70..6a1d9c2b08 100644
--- a/arch/arm/dts/Makefile
+++ b/arch/arm/dts/Makefile
@@ -358,6 +358,9 @@ dtb-$(CONFIG_TARGET_SAMA5D3XEK) += \
 dtb-$(CONFIG_TARGET_SAMA5D3_XPLAINED) += \
 	at91-sama5d3_xplained.dtb
 
+dtb-$(CONFIG_TARGET_SAMA5D4EK) += \
+	at91-sama5d4ek.dtb
+
 dtb-$(CONFIG_TARGET_SAMA5D4_XPLAINED) += \
 	at91-sama5d4_xplained.dtb
 
diff --git a/arch/arm/dts/at91-sama5d4ek.dts b/arch/arm/dts/at91-sama5d4ek.dts
new file mode 100644
index 0000000000..b965f5b39d
--- /dev/null
+++ b/arch/arm/dts/at91-sama5d4ek.dts
@@ -0,0 +1,341 @@
+/*
+ * at91-sama5d4ek.dts - Device Tree file for SAMA5D4 Evaluation Kit
+ *
+ *  Copyright (C) 2014 Atmel,
+ *                2014 Nicolas Ferre <nicolas.ferre@atmel.com>
+ *
+ * This file is dual-licensed: you can use it either under the terms
+ * of the GPL or the X11 license, at your option. Note that this dual
+ * licensing only applies to this file, and not this project as a
+ * whole.
+ *
+ *  a) This file is free software; you can redistribute it and/or
+ *     modify it under the terms of the GNU General Public License as
+ *     published by the Free Software Foundation; either version 2 of the
+ *     License, or (at your option) any later version.
+ *
+ *     This file is distributed in the hope that it will be useful,
+ *     but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *     GNU General Public License for more details.
+ *
+ * Or, alternatively,
+ *
+ *  b) Permission is hereby granted, free of charge, to any person
+ *     obtaining a copy of this software and associated documentation
+ *     files (the "Software"), to deal in the Software without
+ *     restriction, including without limitation the rights to use,
+ *     copy, modify, merge, publish, distribute, sublicense, and/or
+ *     sell copies of the Software, and to permit persons to whom the
+ *     Software is furnished to do so, subject to the following
+ *     conditions:
+ *
+ *     The above copyright notice and this permission notice shall be
+ *     included in all copies or substantial portions of the Software.
+ *
+ *     THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+ *     EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
+ *     OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+ *     NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
+ *     HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
+ *     WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ *     FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ *     OTHER DEALINGS IN THE SOFTWARE.
+ */
+/dts-v1/;
+#include "sama5d4.dtsi"
+
+/ {
+	model = "Atmel SAMA5D4-EK";
+	compatible = "atmel,sama5d4ek", "atmel,sama5d4", "atmel,sama5";
+
+	aliases {
+		spi0 = &spi0;
+	};
+
+	chosen {
+		u-boot,dm-pre-reloc;
+		stdout-path = &usart3;
+	};
+
+
+	memory {
+		reg = <0x20000000 0x20000000>;
+	};
+
+	clocks {
+		slow_xtal {
+			clock-frequency = <32768>;
+		};
+
+		main_xtal {
+			clock-frequency = <12000000>;
+		};
+	};
+
+	ahb {
+		apb {
+			adc0: adc@fc034000 {
+				pinctrl-names = "default";
+				pinctrl-0 = <
+					/* external trigger conflicts with USBA_VBUS */
+					&pinctrl_adc0_ad0
+					&pinctrl_adc0_ad1
+					&pinctrl_adc0_ad2
+					&pinctrl_adc0_ad3
+					&pinctrl_adc0_ad4
+					>;
+				/* The vref depends on JP22 of EK. If connect 1-2 then use 3.3V. connect 2-3 use 3.0V */
+				atmel,adc-vref = <3300>;
+				/*atmel,adc-ts-wires = <4>;*/	/* Set up ADC touch screen */
+				status = "okay";		/* Enable ADC IIO support */
+			};
+
+			mmc0: mmc@f8000000 {
+				pinctrl-names = "default";
+				pinctrl-0 = <&pinctrl_mmc0_clk_cmd_dat0 &pinctrl_mmc0_dat1_3 &pinctrl_mmc0_cd>;
+				slot@0 {
+					reg = <0>;
+					bus-width = <4>;
+					cd-gpios = <&pioE 5 0>;
+				};
+			};
+
+			ssc0: ssc@f8008000 {
+				status = "okay";
+			};
+
+			spi0: spi@f8010000 {
+				u-boot,dm-pre-reloc;
+				cs-gpios = <&pioC 3 0>, <0>, <0>, <0>;
+				status = "okay";
+				spi_flash@0 {
+					u-boot,dm-pre-reloc;
+					compatible = "spi-flash";
+					spi-max-frequency = <50000000>;
+					reg = <0>;
+				};
+			};
+
+			i2c0: i2c@f8014000 {
+				status = "okay";
+
+				wm8904: codec@1a {
+					compatible = "wlf,wm8904";
+					reg = <0x1a>;
+					clocks = <&pck2>;
+					clock-names = "mclk";
+				};
+
+				qt1070:keyboard@1b {
+					compatible = "qt1070";
+					reg = <0x1b>;
+					interrupt-parent = <&pioE>;
+					interrupts = <25 0x0>;
+					pinctrl-names = "default";
+					pinctrl-0 = <&pinctrl_qt1070_irq>;
+					wakeup-source;
+				};
+
+				atmel_mxt_ts@4c {
+					compatible = "atmel,atmel_mxt_ts";
+					reg = <0x4c>;
+					interrupt-parent = <&pioE>;
+					interrupts = <24 0x0>;
+					pinctrl-names = "default";
+					pinctrl-0 = <&pinctrl_mxt_ts>;
+				};
+			};
+
+			macb0: ethernet@f8020000 {
+				pinctrl-0 = <&pinctrl_macb0_rmii &pinctrl_macb0_phy_irq>;
+				phy-mode = "rmii";
+				status = "okay";
+
+				ethernet-phy@1 {
+					reg = <0x1>;
+					interrupt-parent = <&pioE>;
+					interrupts = <1 IRQ_TYPE_LEVEL_LOW>;
+				};
+			};
+
+			mmc1: mmc@fc000000 {
+				u-boot,dm-pre-reloc;
+				pinctrl-names = "default";
+				pinctrl-0 = <&pinctrl_mmc1_clk_cmd_dat0 &pinctrl_mmc1_dat1_3 &pinctrl_mmc1_cd>;
+				status = "okay";
+				slot@0 {
+					reg = <0>;
+					bus-width = <4>;
+					cd-gpios = <&pioE 6 0>;
+				};
+			};
+
+			usart2: serial@fc008000 {
+				status = "okay";
+			};
+
+			usart3: serial@fc00c000 {
+				u-boot,dm-pre-reloc;
+				status = "okay";
+			};
+
+			usart4: serial@fc010000 {
+				status = "okay";
+			};
+
+			watchdog@fc068640 {
+				status = "okay";
+			};
+
+			pinctrl@fc06a000 {
+				board {
+					u-boot,dm-pre-reloc;
+					pinctrl_macb0_phy_irq: macb0_phy_irq {
+						atmel,pins =
+							<AT91_PIOE 1 AT91_PERIPH_GPIO AT91_PINCTRL_NONE>;
+					};
+					pinctrl_mmc0_cd: mmc0_cd {
+						atmel,pins =
+							<AT91_PIOE 5 AT91_PERIPH_GPIO AT91_PINCTRL_PULL_UP_DEGLITCH>;
+					};
+					pinctrl_mmc1_cd: mmc1_cd {
+						u-boot,dm-pre-reloc;
+						atmel,pins =
+							<AT91_PIOE 6 AT91_PERIPH_GPIO AT91_PINCTRL_PULL_UP_DEGLITCH>;
+					};
+					pinctrl_pck2_as_audio_mck: pck2_as_audio_mck {
+						atmel,pins =
+							<AT91_PIOB 10 AT91_PERIPH_B AT91_PINCTRL_NONE>;
+					};
+					pinctrl_usba_vbus: usba_vbus {
+						atmel,pins =
+							<AT91_PIOE 31 AT91_PERIPH_GPIO AT91_PINCTRL_DEGLITCH>;
+					};
+					pinctrl_key_gpio: key_gpio_0 {
+						atmel,pins =
+							<AT91_PIOE 13 AT91_PERIPH_GPIO AT91_PINCTRL_PULL_UP_DEGLITCH>; /* PE13 gpio */
+					};
+					pinctrl_qt1070_irq: qt1070_irq {
+						atmel,pins =
+							<AT91_PIOE 25 AT91_PERIPH_GPIO AT91_PINCTRL_PULL_UP_DEGLITCH>;
+					};
+					pinctrl_mxt_ts: mxt_irq {
+						atmel,pins =
+							<AT91_PIOE 24 AT91_PERIPH_GPIO AT91_PINCTRL_PULL_UP_DEGLITCH>;
+					};
+				};
+			};
+		};
+
+		usb0: gadget@00400000 {
+			atmel,vbus-gpio = <&pioE 31 GPIO_ACTIVE_HIGH>;
+			pinctrl-names = "default";
+			pinctrl-0 = <&pinctrl_usba_vbus>;
+			status = "okay";
+		};
+
+		usb1: ohci@00500000 {
+			num-ports = <3>;
+			atmel,vbus-gpio = <0 /* &pioE 10 GPIO_ACTIVE_LOW */
+					   &pioE 11 GPIO_ACTIVE_LOW
+					   &pioE 12 GPIO_ACTIVE_LOW
+					  >;
+			status = "okay";
+		};
+
+		usb2: ehci@00600000 {
+			status = "okay";
+		};
+
+		nand0: nand@80000000 {
+			nand-bus-width = <8>;
+			nand-ecc-mode = "hw";
+			nand-on-flash-bbt;
+			atmel,has-pmecc;
+			status = "okay";
+
+			at91bootstrap@0 {
+				label = "at91bootstrap";
+				reg = <0x0 0x40000>;
+			};
+
+			bootloader@40000 {
+				label = "bootloader";
+				reg = <0x40000 0x80000>;
+			};
+
+			bootloaderenv@c0000 {
+				label = "bootloader env";
+				reg = <0xc0000 0xc0000>;
+			};
+
+			dtb@180000 {
+				label = "device tree";
+				reg = <0x180000 0x80000>;
+			};
+
+			kernel@200000 {
+				label = "kernel";
+				reg = <0x200000 0x600000>;
+			};
+
+			rootfs@800000 {
+				label = "rootfs";
+				reg = <0x800000 0x0f800000>;
+			};
+		};
+	};
+
+	gpio_keys {
+		compatible = "gpio-keys";
+
+		pinctrl-names = "default";
+		pinctrl-0 = <&pinctrl_key_gpio>;
+
+		pb_user1 {
+			label = "pb_user1";
+			gpios = <&pioE 13 GPIO_ACTIVE_HIGH>;
+			linux,code = <0x100>;
+			wakeup-source;
+		};
+	};
+
+	leds {
+		compatible = "gpio-leds";
+		status = "okay";
+
+		d8 {
+			label = "d8";
+			/* PE28, conflicts with usart4 rts pin */
+			gpios = <&pioE 28 GPIO_ACTIVE_LOW>;
+		};
+
+		d9 {
+			label = "d9";
+			gpios = <&pioE 9 GPIO_ACTIVE_HIGH>;
+		};
+
+		d10 {
+			label = "d10";
+			gpios = <&pioE 8 GPIO_ACTIVE_LOW>;
+			linux,default-trigger = "heartbeat";
+		};
+	};
+
+	sound {
+		compatible = "atmel,asoc-wm8904";
+		pinctrl-names = "default";
+		pinctrl-0 = <&pinctrl_pck2_as_audio_mck>;
+
+		atmel,model = "wm8904 @ SAMA5D4EK";
+		atmel,audio-routing =
+			"Headphone Jack", "HPOUTL",
+			"Headphone Jack", "HPOUTR",
+			"IN1L", "Line In Jack",
+			"IN1R", "Line In Jack";
+
+		atmel,ssc-controller = <&ssc0>;
+		atmel,audio-codec = <&wm8904>;
+	};
+};