linux-kernel - Re: [PATCH] ARM: dts: add board dts file for EXYNOS4412 based TINY4412 board

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Date:	Fri, 15 Nov 2013 21:13:20 +0800
From:	kasim ling <kasimling@...il.com>
To:	Rob Herring <rob.herring@...xeda.com>, mark.rutland@....com,
	linux@....linux.org.uk, Stephen Warren <swarren@...dotorg.org>,
	ijc+devicetree@...lion.org.uk, kgene.kim@...sung.com,
	devicetree@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
	linux-kernel@...r.kernel.org, linux-samsung-soc@...r.kernel.org
Cc:	Alex Ling <kasimling@...il.com>
Subject: Re: [PATCH] ARM: dts: add board dts file for EXYNOS4412 based
 TINY4412 board

The board compatible string will be documented after the coresponding
documentation is specified.


Regards,
Alex

On Fri, Nov 15, 2013 at 9:09 PM, Alex Ling <kasimling@...il.com> wrote:
> Add a minimal board dts file for EXYNOS4412 based FriendlyARM's
> TINY4412 board. This patch including adds the node to support
> peripherals like UART, SD card on SDMMC2 port, and this patch
> adds GPIO connected LEDS and configure its properties like
> following:
> LED1: use 'heartbeat' trigger, blinking while the board is running.
> LED4: use 'mmc0' trigger, on when mmc0 is accessing.
> LED2 and LED3 can be controlled from userspace.
>
> Signed-off-by: Alex Ling <kasimling@...il.com>
> ---
>  arch/arm/boot/dts/Makefile                |    1 +
>  arch/arm/boot/dts/exynos4412-tiny4412.dts |   89 +++++++++++++++++++++++++++++
>  2 files changed, 90 insertions(+)
>  create mode 100644 arch/arm/boot/dts/exynos4412-tiny4412.dts
>
> diff --git a/arch/arm/boot/dts/Makefile b/arch/arm/boot/dts/Makefile
> index 802720e..91671a2 100644
> --- a/arch/arm/boot/dts/Makefile
> +++ b/arch/arm/boot/dts/Makefile
> @@ -59,6 +59,7 @@ dtb-$(CONFIG_ARCH_EXYNOS) += exynos4210-origen.dtb \
>         exynos4412-odroidx.dtb \
>         exynos4412-origen.dtb \
>         exynos4412-smdk4412.dtb \
> +       exynos4412-tiny4412.dtb \
>         exynos4412-trats2.dtb \
>         exynos5250-arndale.dtb \
>         exynos5250-smdk5250.dtb \
> diff --git a/arch/arm/boot/dts/exynos4412-tiny4412.dts b/arch/arm/boot/dts/exynos4412-tiny4412.dts
> new file mode 100644
> index 0000000..78ace14
> --- /dev/null
> +++ b/arch/arm/boot/dts/exynos4412-tiny4412.dts
> @@ -0,0 +1,89 @@
> +/*
> + * FriendlyARM's Exynos4412 based TINY4412 board device tree source
> + *
> + * Copyright (c) 2013 Alex Ling <kasimling@...il.com>
> + *
> + * Device tree source file for FriendlyARM's TINY4412 board which is based on
> + * Samsung's Exynos4412 SoC.
> + *
> + * This program is free software; you can redistribute it and/or modify
> + * it under the terms of the GNU General Public License version 2 as
> + * published by the Free Software Foundation.
> +*/
> +
> +/dts-v1/;
> +#include "exynos4412.dtsi"
> +
> +/ {
> +       model = "FriendlyARM TINY4412 board based on Exynos4412";
> +       compatible = "friendlyarm,tiny4412", "samsung,exynos4412";
> +
> +       memory {
> +               reg = <0x40000000 0x40000000>;
> +       };
> +
> +       leds {
> +               compatible = "gpio-leds";
> +               led1 {
> +                       label = "led1:heart";
> +                       gpios = <&gpm4 0 1>;
> +                       default-state = "off";
> +                       linux,default-trigger = "heartbeat";
> +               };
> +               led2 {
> +                       label = "led2";
> +                       gpios = <&gpm4 1 1>;
> +                       default-state = "off";
> +               };
> +               led3 {
> +                       label = "led3";
> +                       gpios = <&gpm4 2 1>;
> +                       default-state = "off";
> +               };
> +               led4 {
> +                       label = "led4:mmc0";
> +                       gpios = <&gpm4 3 1>;
> +                       default-state = "off";
> +                       linux,default-trigger = "mmc0";
> +               };
> +       };
> +
> +       rtc@...70000 {
> +               status = "okay";
> +       };
> +
> +       sdhci@...30000 {
> +               bus-width = <4>;
> +               pinctrl-0 = <&sd2_clk &sd2_cmd &sd2_cd &sd2_bus4>;
> +               pinctrl-names = "default";
> +               status = "okay";
> +       };
> +
> +       serial@...00000 {
> +               status = "okay";
> +       };
> +
> +       serial@...10000 {
> +               status = "okay";
> +       };
> +
> +       serial@...20000 {
> +               status = "okay";
> +       };
> +
> +       serial@...30000 {
> +               status = "okay";
> +       };
> +
> +       fixed-rate-clocks {
> +               xxti {
> +                       compatible = "samsung,clock-xxti";
> +                       clock-frequency = <0>;
> +               };
> +
> +               xusbxti {
> +                       compatible = "samsung,clock-xusbxti";
> +                       clock-frequency = <24000000>;
> +               };
> +       };
> +};
> --
> 1.7.9.5
>
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