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ARM: shmobile: silk: initial device tree 

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.

Based on the original patch by Vladimir Barinov
<vladimir.barinov@cogentembedded.com>.

Signed-off-by: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
This commit is contained in:
Sergei Shtylyov 2015-07-29 01:14:59 +03:00 committed by Simon Horman
parent fd1683c18c
commit a42fc57a9e
2 changed files with 52 additions and 0 deletions
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1
arch/arm/boot/dts/Makefile
View File

@ -518,6 +518,7 @@ dtb-$(CONFIG_ARCH_SHMOBILE_MULTI) += \
r8a7791-koelsch.dtb \
r8a7793-gose.dtb \
r8a7794-alt.dtb \
r8a7794-silk.dtb \
sh73a0-kzm9g.dtb
dtb-$(CONFIG_ARCH_SOCFPGA) += \
socfpga_arria5_socdk.dtb \

51
arch/arm/boot/dts/r8a7794-silk.dts Normal file
View File

@ -0,0 +1,51 @@
/*
* 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 = "ignore_loglevel";
stdout-path = &scif2;
};
memory@40000000 {
device_type = "memory";
reg = <0 0x40000000 0 0x40000000>;
};
};
&extal_clk {
clock-frequency = <20000000>;
};
&pfc {
scif2_pins: serial2 {
renesas,groups = "scif2_data";
renesas,function = "scif2";
};
};
&scif2 {
pinctrl-0 = <&scif2_pins>;
pinctrl-names = "default";
status = "okay";
};