Re: [PATCH 3/3] ARM: at91: dt: sam9rl: Device Tree for the at91sam9rlek

From: Nicolas Ferre
Date: Mon Feb 17 2014 - 05:31:11 EST


On 15/02/2014 02:14, Alexandre Belloni :
> Add a device tree for the at91sam9rl-ek. For now it supports:
> - MMC
> - dbgu
> - usart1
> - watchdog
> - nand
> - leds
> - buttons
>
> Signed-off-by: Alexandre Belloni <alexandre.belloni@xxxxxxxxxxxxxxxxxx>
> ---
> arch/arm/boot/dts/Makefile | 2 +
> arch/arm/boot/dts/at91sam9rlek.dts | 151 +++++++++++++++++++++++++++++++++++++
> 2 files changed, 153 insertions(+)
> create mode 100644 arch/arm/boot/dts/at91sam9rlek.dts
>
> diff --git a/arch/arm/boot/dts/Makefile b/arch/arm/boot/dts/Makefile
> index d57c1a65b24f..bb28e65d17ee 100644
> --- a/arch/arm/boot/dts/Makefile
> +++ b/arch/arm/boot/dts/Makefile
> @@ -28,6 +28,8 @@ dtb-$(CONFIG_ARCH_AT91) += at91sam9m10g45ek.dtb
> dtb-$(CONFIG_ARCH_AT91) += pm9g45.dtb
> # sam9n12
> dtb-$(CONFIG_ARCH_AT91) += at91sam9n12ek.dtb
> +# sam9rl
> +dtb-$(CONFIG_ARCH_AT91) += at91sam9rlek.dtb
> # sam9x5
> dtb-$(CONFIG_ARCH_AT91) += at91-ariag25.dtb
> dtb-$(CONFIG_ARCH_AT91) += at91sam9g15ek.dtb
> diff --git a/arch/arm/boot/dts/at91sam9rlek.dts b/arch/arm/boot/dts/at91sam9rlek.dts
> new file mode 100644
> index 000000000000..5ec9589613a1
> --- /dev/null
> +++ b/arch/arm/boot/dts/at91sam9rlek.dts
> @@ -0,0 +1,151 @@
> +/*
> + * at91sam9rlek.dts - Device Tree file for Atmel at91sam9rl reference board
> + *
> + * Copyright (C) 2014 Alexandre Belloni <alexandre.belloni@xxxxxxxxxxxxxxxxxx>
> + *
> + * Licensed under GPLv2 only
> + */
> +/dts-v1/;
> +#include "at91sam9rl.dtsi"
> +
> +/ {
> + model = "Atmel at91sam9rlek";
> + compatible = "atmel,at91sam9rlek", "atmel,at91sam9rl", "atmel,at91sam9";
> +
> + chosen {
> + bootargs = "console=ttyS0,115200 rootfstype=ubifs root=ubi0:rootfs ubi.mtd=7 rw";

Isn't it ubi.mtd=5 according to the NAND layer below?

> + };
> +
> + memory {
> + reg = <0x20000000 0x4000000>;
> + };
> +
> + clocks {
> + #address-cells = <1>;
> + #size-cells = <1>;
> + ranges;
> +
> + main_clock: clock@0 {
> + compatible = "atmel,osc", "fixed-clock";
> + clock-frequency = <12000000>;
> + };
> + };
> +
> + ahb {
> + apb {
> + mmc0: mmc@fffa4000 {

Use address ascending order, even for the board, please.

> + pinctrl-0 = <
> + &pinctrl_board_mmc0
> + &pinctrl_mmc0_clk
> + &pinctrl_mmc0_slot0_cmd_dat0
> + &pinctrl_mmc0_slot0_dat1_3>;
> + status = "okay";
> + slot@0 {
> + reg = <0>;
> + bus-width = <4>;
> + cd-gpios = <&pioA 15 GPIO_ACTIVE_HIGH>;
> + };
> + };
> +
> + dbgu: serial@fffff200 {
> + status = "okay";
> + };
> +
> + usart0: serial@fffb0000 {
> + pinctrl-0 = <
> + &pinctrl_usart0
> + &pinctrl_usart0_rts
> + &pinctrl_usart0_cts>;
> + status = "okay";
> + };
> +
> + pinctrl@fffff400 {
> + mmc0 {
> + pinctrl_board_mmc0: mmc0-board {
> + atmel,pins =
> + <AT91_PIOA 15 AT91_PERIPH_GPIO AT91_PINCTRL_PULL_UP_DEGLITCH>;
> + };
> + };
> + };
> +
> + watchdog@fffffd40 {
> + status = "okay";
> + };
> + };
> +
> + nand0: nand@40000000 {
> + nand-bus-width = <8>;
> + nand-ecc-mode = "soft";
> + nand-on-flash-bbt = <1>;
> + 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>;
> + };
> + };
> + };
> +
> + leds {
> + compatible = "gpio-leds";
> +
> + ds1 {
> + label = "ds1";
> + gpios = <&pioD 15 GPIO_ACTIVE_LOW>;
> + };
> +
> + ds2 {
> + label = "ds2";
> + gpios = <&pioD 16 GPIO_ACTIVE_LOW>;
> + };
> +
> + ds3 {
> + label = "ds3";
> + gpios = <&pioD 14 GPIO_ACTIVE_HIGH>;
> + linux,default-trigger = "heartbeat";
> + };
> + };
> +
> + gpio_keys {
> + compatible = "gpio-keys";
> +
> + right_click {
> + label = "right_click";
> + gpios = <&pioB 0 GPIO_ACTIVE_LOW>;
> + linux,code = <273>;
> + gpio-key,wakeup;
> + };
> +
> + left_click {
> + label = "left_click";
> + gpios = <&pioB 1 GPIO_ACTIVE_LOW>;
> + linux,code = <272>;
> + gpio-key,wakeup;
> + };
> + };
> +};
>

Otherwise, seems okay:

when corrected, you can add my:

Acked-by: Nicolas Ferre <nicolas.ferre@xxxxxxxxx>

--
Nicolas Ferre
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