mirror of https://gitee.com/openkylin/linux.git
ARM: at91: dt: sam9261: Device Tree support for the at91sam9261ek
This patch implements a DTS to boot a at91sam9261ek with a dt-enabled kernel (at91_dt_defconfig). supported features are: * dbgu * lcdc * usb host * usb gadget, * spi dataflash * nand flash * touchscreen * leds * user buttons In the TODO list: * dm9000 (ethernet) * audio * mmc Signed-off-by: Jean-Jacques Hiblot <jjhiblot@traphandler.com> Acked-by: Alexandre Belloni <alexandre.belloni@free-electrons.com> Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>
This commit is contained in:
Jean-Jacques Hiblot
Nicolas Ferre
parent
2f5c1ac72a
commit
109364af15
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@ -12,6 +12,8 @@ dtb-$(CONFIG_ARCH_AT91) += ethernut5.dtb
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dtb-$(CONFIG_ARCH_AT91) += evk-pro3.dtb
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dtb-$(CONFIG_ARCH_AT91) += tny_a9260.dtb
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dtb-$(CONFIG_ARCH_AT91) += usb_a9260.dtb
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# sam9261
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dtb-$(CONFIG_ARCH_AT91) += at91sam9261ek.dtb
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# sam9263
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dtb-$(CONFIG_ARCH_AT91) += at91sam9263ek.dtb
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dtb-$(CONFIG_ARCH_AT91) += tny_a9263.dtb
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@ -0,0 +1,211 @@
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/*
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* at91sam9261ek.dts - Device Tree file for Atmel at91sam9261 reference board
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*
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* Copyright (C) 2013 Jean-Jacques Hiblot <jjhiblot@traphandler.com>
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*
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* Licensed under GPLv2 only.
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*/
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/dts-v1/;
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#include "at91sam9261.dtsi"
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/ {
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model = "Atmel at91sam9261ek";
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compatible = "atmel,at91sam9261ek", "atmel,at91sam9261", "atmel,at91sam9";
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chosen {
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bootargs = "console=ttyS0,115200 rootfstype=ubifs ubi.mtd=5 root=ubi0:rootfs rw";
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};
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memory {
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reg = <0x20000000 0x4000000>;
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};
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clocks {
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#address-cells = <1>;
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#size-cells = <1>;
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ranges;
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main_clock: clock@0 {
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compatible = "atmel,osc", "fixed-clock";
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clock-frequency = <18432000>;
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};
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};
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ahb {
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usb0: ohci@00500000 {
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status = "okay";
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};
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fb0: fb@0x00600000 {
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display = <&display0>;
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atmel,power-control-gpio = <&pioA 12 GPIO_ACTIVE_LOW>;
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status = "okay";
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display0: display {
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bits-per-pixel = <16>;
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atmel,lcdcon-backlight;
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atmel,dmacon = <0x1>;
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atmel,lcdcon2 = <0x80008002>;
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atmel,guard-time = <1>;
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atmel,lcd-wiring-mode = "BRG";
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display-timings {
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native-mode = <&timing0>;
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timing0: timing0 {
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clock-frequency = <4965000>;
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hactive = <240>;
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vactive = <320>;
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hback-porch = <1>;
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hfront-porch = <33>;
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vback-porch = <1>;
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vfront-porch = <0>;
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hsync-len = <5>;
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vsync-len = <1>;
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hsync-active = <1>;
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vsync-active = <1>;
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};
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};
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};
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};
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nand0: nand@40000000 {
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nand-bus-width = <8>;
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nand-ecc-mode = "soft";
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nand-on-flash-bbt;
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status = "okay";
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at91bootstrap@0 {
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label = "at91bootstrap";
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reg = <0x0 0x40000>;
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};
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bootloader@40000 {
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label = "bootloader";
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reg = <0x40000 0x80000>;
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};
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bootloaderenv@c0000 {
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label = "bootloader env";
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reg = <0xc0000 0xc0000>;
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};
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dtb@180000 {
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label = "device tree";
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reg = <0x180000 0x80000>;
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};
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kernel@200000 {
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label = "kernel";
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reg = <0x200000 0x600000>;
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};
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rootfs@800000 {
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label = "rootfs";
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reg = <0x800000 0x0f800000>;
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};
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};
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apb {
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usb1: gadget@fffa4000 {
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atmel,vbus-gpio = <&pioB 29 GPIO_ACTIVE_HIGH>;
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status = "okay";
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};
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spi0: spi@fffc8000 {
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cs-gpios = <&pioA 3 0>, <0>, <&pioA 28 0>, <0>;
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status = "okay";
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mtd_dataflash@0 {
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compatible = "atmel,at45", "atmel,dataflash";
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reg = <0>;
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spi-max-frequency = <15000000>;
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};
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tsc2046@0 {
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reg = <2>;
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compatible = "ti,ads7843";
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interrupts-extended = <&pioC 2 IRQ_TYPE_EDGE_BOTH>;
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spi-max-frequency = <3000000>;
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pendown-gpio = <&pioC 2 GPIO_ACTIVE_HIGH>;
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ti,x-min = /bits/ 16 <150>;
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ti,x-max = /bits/ 16 <3830>;
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ti,y-min = /bits/ 16 <190>;
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ti,y-max = /bits/ 16 <3830>;
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ti,vref-delay-usecs = /bits/ 16 <450>;
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ti,x-plate-ohms = /bits/ 16 <450>;
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ti,y-plate-ohms = /bits/ 16 <250>;
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ti,pressure-max = /bits/ 16 <15000>;
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ti,debounce-rep = /bits/ 16 <0>;
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ti,debounce-tol = /bits/ 16 <65535>;
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ti,debounce-max = /bits/ 16 <1>;
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linux,wakeup;
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};
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};
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dbgu: serial@fffff200 {
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status = "okay";
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};
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watchdog@fffffd40 {
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status = "okay";
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};
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};
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};
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leds {
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compatible = "gpio-leds";
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ds8 {
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label = "ds8";
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gpios = <&pioA 13 GPIO_ACTIVE_LOW>;
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linux,default-trigger = "none";
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};
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ds7 {
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label = "ds7";
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gpios = <&pioA 14 GPIO_ACTIVE_LOW>;
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linux,default-trigger = "nand-disk";
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};
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ds1 {
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label = "ds1";
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gpios = <&pioA 23 GPIO_ACTIVE_LOW>;
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linux,default-trigger = "heartbeat";
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};
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};
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gpio_keys {
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compatible = "gpio-keys";
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button_0 {
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label = "button_0";
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gpios = <&pioA 27 GPIO_ACTIVE_LOW>;
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linux,code = <256>;
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gpio-key,wakeup;
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};
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button_1 {
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label = "button_1";
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gpios = <&pioA 26 GPIO_ACTIVE_LOW>;
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linux,code = <257>;
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gpio-key,wakeup;
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};
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button_2 {
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label = "button_2";
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gpios = <&pioA 25 GPIO_ACTIVE_LOW>;
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linux,code = <258>;
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gpio-key,wakeup;
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};
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button_3 {
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label = "button_3";
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gpios = <&pioA 24 GPIO_ACTIVE_LOW>;
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linux,code = <259>;
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gpio-key,wakeup;
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};
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};
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};
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