[PATCH] ARM: shmobile: silk: initial device tree

Simon Horman horms at verge.net.au
Fri Jan 30 20:21:43 PST 2015


On Sat, Jan 31, 2015 at 01:52:16AM +0300, Sergei Shtylyov wrote:
> Add the initial device tree for the R8A7794 SoC based SILK low cost board.
> SCIF2 serial port support is included, so that the serial console can work.
> 
> Signed-off-by: Sergei Shtylyov <sergei.shtylyov at cogentembedded.com>
> 
> ---
> This patch is against the 'renesas-devel-20150129-v3.19-rc6' tag of Simon
> Horman's 'renesas.git' repo.
> 
>  arch/arm/boot/dts/Makefile         |    1 
>  arch/arm/boot/dts/r8a7794-silk.dts |   41 +++++++++++++++++++++++++++++++++++++
>  2 files changed, 42 insertions(+)
> 
> Index: renesas/arch/arm/boot/dts/Makefile
> ===================================================================
> --- renesas.orig/arch/arm/boot/dts/Makefile
> +++ renesas/arch/arm/boot/dts/Makefile
> @@ -421,6 +421,7 @@ dtb-$(CONFIG_ARCH_SHMOBILE_MULTI) += eme
>  	r8a7791-koelsch.dtb \
>  	r8a7791-porter.dtb \
>  	r8a7794-alt.dtb \
> +	r8a7794-silk.dtb \
>  	sh73a0-kzm9g.dtb
>  dtb-$(CONFIG_ARCH_SOCFPGA) += socfpga_arria5_socdk.dtb \
>  	socfpga_arria10_socdk.dtb \
> Index: renesas/arch/arm/boot/dts/r8a7794-silk.dts
> ===================================================================
> --- /dev/null
> +++ renesas/arch/arm/boot/dts/r8a7794-silk.dts
> @@ -0,0 +1,41 @@
> +/*
> + * Device Tree Source for the SILK board
> + *
> + * Copyright (C) 2014 Renesas Electronics Corporation
> + * Copyright (C) 2014-2015 Renesas Solutions Corp.
> + * Copyright (C) 2014-2015 Cogent Embedded, Inc.
> + *
> + * This file is licensed under the terms of the GNU General Public License
> + * version 2.  This program is licensed "as is" without any warranty of any
> + * kind, whether express or implied.
> + */
> +
> +/dts-v1/;
> +#include "r8a7794.dtsi"
> +
> +/ {
> +	model = "SILK";
> +	compatible = "renesas,silk", "renesas,r8a7794";
> +
> +	aliases {
> +		serial0 = &scif2;
> +	};
> +
> +	chosen {
> +		bootargs = "console=ttySC0,38400 ignore_loglevel";

Please remove console= for consistency with other boards
based on Renesas SoCs.

> +		stdout-path = &scif2;
> +	};
> +
> +	memory at 40000000 {
> +		device_type = "memory";
> +		reg = <0 0x40000000 0 0x40000000>;
> +	};
> +};
> +
> +&extal_clk {
> +	clock-frequency = <20000000>;
> +};
> +
> +&scif2 {
> +	status = "okay";
> +};
> 
> --
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