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Message-ID: <53206284.2000002@atmel.com>
Date: Wed, 12 Mar 2014 14:35:00 +0100
From: Nicolas Ferre <nicolas.ferre@...el.com>
To: Jean-Jacques Hiblot <jjhiblot@...phandler.com>
CC: Alexandre Belloni <alexandre.belloni@...e-electrons.com>,
<plagnioj@...osoft.com>, <b.brezillon@...rkiz.com>,
<linux-kernel@...r.kernel.org>,
<linux-arm-kernel@...ts.infradead.org>,
<gregory.clement@...e-electrons.com>, <devicetree@...r.kernel.org>,
<thomas.petazzoni@...e-electrons.com>
Subject: Re: [PATCH v5 6/9] at91: dt: sam9261: Device Tree support for the
at91sam9261ek
On 03/03/2014 19:38, Alexandre Belloni :
> On 03/03/2014 at 11:05:59 +0100, Jean-Jacques Hiblot wrote :
>> 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@...phandler.com>
>> ---
>> 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.dts
>>
>> diff --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.dtb
>> diff --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@...phandler.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@0 {
>> + compatible = "atmel,osc", "fixed-clock";
>> + clock-frequency = <18432000>;
>> + };
>> + };
>> +
>> + ahb {
>> + usb0: ohci@...00000 {
>> + status = "okay";
>> + };
>> +
>> + fb0: fb@...0600000 {
>> + 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@...00000 {
>> + nand-bus-width = <8>;
>> + nand-ecc-mode = "soft";
>> + nand-on-flash-bbt;
>> + status = "okay";
>> +
>> + at91bootstrap@0 {
>> + label = "at91bootstrap";
>> + reg = <0x0 0x40000>;
>> + };
>> +
>> + bootloader@...00 {
>> + label = "bootloader";
>> + reg = <0x40000 0x80000>;
>> + };
>> +
>> + bootloaderenv@...00 {
>> + label = "bootloader env";
>> + reg = <0xc0000 0xc0000>;
>> + };
>> +
>> + dtb@...000 {
>> + label = "device tree";
>> + reg = <0x180000 0x80000>;
>> + };
>> +
>> + kernel@...000 {
>> + label = "kernel";
>> + reg = <0x200000 0x600000>;
>> + };
>> +
>> + rootfs@...000 {
>> + label = "rootfs";
>> + reg = <0x800000 0x0f800000>;
>> + };
>> + };
>> +
>> + apb {
>> + usb1: gadget@...a4000 {
>> + atmel,vbus-gpio = <&pioB 29 GPIO_ACTIVE_HIGH>;
>> + status = "okay";
>> + };
>
> Nit: add a white line between nodes please, same for a few nodes below.
Done while including in the at91-3.15-cleanup branch.
>
>> + spi0: spi@...c8000 {
>> + cs-gpios = <&pioA 3 0>, <0>, <&pioA 28 0>, <0>;
>> + status = "okay";
>> +
>> + mtd_dataflash@0 {
>> + compatible = "atmel,at45", "atmel,dataflash";
>> + reg = <0>;
>> + spi-max-frequency = <15000000>;
>> + };
>> + tsc2046@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@...ff200 {
>> + status = "okay";
>> + };
>> +
>> + watchdog@...ffd40 {
>> + 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
>>
>
--
Nicolas Ferre
--
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