[PATCH v5 6/9] at91: dt: sam9261: Device Tree support for the at91sam9261ek
From: Alexandre Belloni <hidden>
Date: 2014-03-03 18:38:06
Also in:
linux-devicetree, lkml
On 03/03/2014 at 11:05:59 +0100, Jean-Jacques Hiblot wrote :
quoted hunk ↗ jump to hunk
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 <redacted> --- arch/arm/boot/dts/Makefile | 2 + arch/arm/boot/dts/at91sam9261ek.dts | 204 ++++++++++++++++++++++++++++++++++++ 2 files changed, 206 insertions(+) create mode 100644 arch/arm/boot/dts/at91sam9261ek.dtsdiff --git a/arch/arm/boot/dts/Makefile b/arch/arm/boot/dts/Makefile index 0320303..f496473 100644 --- a/arch/arm/boot/dts/Makefile +++ b/arch/arm/boot/dts/Makefile@@ -12,6 +12,8 @@ dtb-$(CONFIG_ARCH_AT91) += ethernut5.dtb dtb-$(CONFIG_ARCH_AT91) += evk-pro3.dtb dtb-$(CONFIG_ARCH_AT91) += tny_a9260.dtb dtb-$(CONFIG_ARCH_AT91) += usb_a9260.dtb +# sam9261 +dtb-$(CONFIG_ARCH_AT91) += at91sam9261ek.dtb # sam9263 dtb-$(CONFIG_ARCH_AT91) += at91sam9263ek.dtb dtb-$(CONFIG_ARCH_AT91) += tny_a9263.dtbdiff --git a/arch/arm/boot/dts/at91sam9261ek.dts b/arch/arm/boot/dts/at91sam9261ek.dts new file mode 100644 index 0000000..03adb7f --- /dev/null +++ b/arch/arm/boot/dts/at91sam9261ek.dts@@ -0,0 +1,204 @@ +/* + * at91sam9261ek.dts - Device Tree file for Atmel at91sam9261 reference board + * + * Copyright (C) 2013 Jean-Jacques Hiblot <jjhiblot@traphandler.com> + * + * Licensed under GPLv2 only. + */ +/dts-v1/; +#include "at91sam9261.dtsi" + +/ { + model = "Atmel at91sam9261ek"; + compatible = "atmel,at91sam9261ek", "atmel,at91sam9261", "atmel,at91sam9"; + + chosen { + bootargs = "console=ttyS0,115200 rootfstype=ubifs ubi.mtd=5 root=ubi0:rootfs rw"; + }; + + memory { + reg = <0x20000000 0x4000000>; + }; + + clocks { + #address-cells = <1>; + #size-cells = <1>; + ranges; + + main_clock: clock at 0 { + compatible = "atmel,osc", "fixed-clock"; + clock-frequency = <18432000>; + }; + }; + + ahb { + usb0: ohci at 00500000 { + status = "okay"; + }; + + fb0: fb at 0x00600000 { + display = <&display0>; + atmel,power-control-gpio = <&pioA 12 GPIO_ACTIVE_LOW>; + status = "okay"; + + display0: display { + bits-per-pixel = <16>; + atmel,lcdcon-backlight; + atmel,dmacon = <0x1>; + atmel,lcdcon2 = <0x80008002>; + atmel,guard-time = <1>; + atmel,lcd-wiring-mode = "BRG"; + + display-timings { + native-mode = <&timing0>; + timing0: timing0 { + clock-frequency = <4965000>; + hactive = <240>; + vactive = <320>; + hback-porch = <1>; + hfront-porch = <33>; + vback-porch = <1>; + vfront-porch = <0>; + hsync-len = <5>; + vsync-len = <1>; + hsync-active = <1>; + vsync-active = <1>; + }; + }; + }; + }; + + nand0: nand at 40000000 { + nand-bus-width = <8>; + nand-ecc-mode = "soft"; + nand-on-flash-bbt; + status = "okay"; + + at91bootstrap at 0 { + label = "at91bootstrap"; + reg = <0x0 0x40000>; + }; + + bootloader at 40000 { + label = "bootloader"; + reg = <0x40000 0x80000>; + }; + + bootloaderenv at c0000 { + label = "bootloader env"; + reg = <0xc0000 0xc0000>; + }; + + dtb at 180000 { + label = "device tree"; + reg = <0x180000 0x80000>; + }; + + kernel at 200000 { + label = "kernel"; + reg = <0x200000 0x600000>; + }; + + rootfs at 800000 { + label = "rootfs"; + reg = <0x800000 0x0f800000>; + }; + }; + + apb { + usb1: gadget at fffa4000 { + atmel,vbus-gpio = <&pioB 29 GPIO_ACTIVE_HIGH>; + status = "okay"; + };
Nit: add a white line between nodes please, same for a few nodes below.
+ spi0: spi at fffc8000 {
+ cs-gpios = <&pioA 3 0>, <0>, <&pioA 28 0>, <0>;
+ status = "okay";
+
+ mtd_dataflash at 0 {
+ compatible = "atmel,at45", "atmel,dataflash";
+ reg = <0>;
+ spi-max-frequency = <15000000>;
+ };
+ tsc2046 at 0 {
+ reg = <2>;
+ compatible = "ti,ads7843";
+ interrupts-extended = <&pioC 2 IRQ_TYPE_EDGE_BOTH>;
+ spi-max-frequency = <3000000>;
+ pendown-gpio = <&pioC 2 GPIO_ACTIVE_HIGH>;
+
+ ti,x-min = /bits/ 16 <150>;
+ ti,x-max = /bits/ 16 <3830>;
+ ti,y-min = /bits/ 16 <190>;
+ ti,y-max = /bits/ 16 <3830>;
+ ti,vref-delay-usecs = /bits/ 16 <450>;
+ ti,x-plate-ohms = /bits/ 16 <450>;
+ ti,y-plate-ohms = /bits/ 16 <250>;
+ ti,pressure-max = /bits/ 16 <15000>;
+ ti,debounce-rep = /bits/ 16 <0>;
+ ti,debounce-tol = /bits/ 16 <65535>;
+ ti,debounce-max = /bits/ 16 <1>;
+
+ linux,wakeup;
+ };
+ };
+
+ dbgu: serial at fffff200 {
+ status = "okay";
+ };
+
+ watchdog at fffffd40 {
+ status = "okay";
+ };
+
+ };
+ };
+
+ leds {
+ compatible = "gpio-leds";
+
+ ds8 {
+ label = "ds8";
+ gpios = <&pioA 13 GPIO_ACTIVE_LOW>;
+ linux,default-trigger = "none";
+ };
+ ds7 {
+ label = "ds7";
+ gpios = <&pioA 14 GPIO_ACTIVE_LOW>;
+ linux,default-trigger = "nand-disk";
+ };
+ ds1 {
+ label = "ds1";
+ gpios = <&pioA 23 GPIO_ACTIVE_LOW>;
+ linux,default-trigger = "heartbeat";
+ };
+ };
+
+ gpio_keys {
+ compatible = "gpio-keys";
+
+ button_0 {
+ label = "button_0";
+ gpios = <&pioA 27 GPIO_ACTIVE_LOW>;
+ linux,code = <256>;
+ gpio-key,wakeup;
+ };
+ button_1 {
+ label = "button_1";
+ gpios = <&pioA 26 GPIO_ACTIVE_LOW>;
+ linux,code = <257>;
+ gpio-key,wakeup;
+ };
+ button_2 {
+ label = "button_2";
+ gpios = <&pioA 25 GPIO_ACTIVE_LOW>;
+ linux,code = <258>;
+ gpio-key,wakeup;
+ };
+ button_3 {
+ label = "button_3";
+ gpios = <&pioA 24 GPIO_ACTIVE_LOW>;
+ linux,code = <259>;
+ gpio-key,wakeup;
+ };
+ };
+};
--
1.9.0-- Alexandre Belloni, Free Electrons Embedded Linux, Kernel and Android engineering http://free-electrons.com