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arm: add basic support for Mediatek MT6589 boards

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This adds a generic devicetree board file and a dtsi for boards
based on MT6589 SoCs from Mediatek.

Apart from the generic parts (gic, clocks) the only component
currently supported are the timers.

Signed-off-by: Matthias Brugger <matthias.bgg@gmail.com>
This commit is contained in:
Matthias Brugger 2014-05-13 01:06:13 +02:00
parent 7171511eae
commit f682a21854
6 changed files with 131 additions and 0 deletions
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2
arch/arm/Kconfig
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@ -978,6 +978,8 @@ source "arch/arm/mach-mv78xx0/Kconfig"
source "arch/arm/mach-imx/Kconfig"
source "arch/arm/mach-mediatek/Kconfig"
source "arch/arm/mach-mxs/Kconfig"
source "arch/arm/mach-netx/Kconfig"

1
arch/arm/Makefile
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@ -172,6 +172,7 @@ machine-$(CONFIG_ARCH_MSM) += msm
machine-$(CONFIG_ARCH_MV78XX0) += mv78xx0
machine-$(CONFIG_ARCH_MVEBU) += mvebu
machine-$(CONFIG_ARCH_MXC) += imx
machine-$(CONFIG_ARCH_MEDIATEK) += mediatek
machine-$(CONFIG_ARCH_MXS) += mxs
machine-$(CONFIG_ARCH_NETX) += netx
machine-$(CONFIG_ARCH_NOMADIK) += nomadik

94
arch/arm/boot/dts/mt6589.dtsi Normal file
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@ -0,0 +1,94 @@
/*
* Copyright (c) 2014 MundoReader S.L.
* Author: Matthias Brugger <matthias.bgg@gmail.com>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*/
#include <dt-bindings/interrupt-controller/irq.h>
#include <dt-bindings/interrupt-controller/arm-gic.h>
#include "skeleton.dtsi"
/ {
compatible = "mediatek,mt6589";
interrupt-parent = <&gic>;
cpus {
#address-cells = <1>;
#size-cells = <0>;
cpu@0 {
device_type = "cpu";
compatible = "arm,cortex-a7";
reg = <0x0>;
};
cpu@1 {
device_type = "cpu";
compatible = "arm,cortex-a7";
reg = <0x1>;
};
cpu@2 {
device_type = "cpu";
compatible = "arm,cortex-a7";
reg = <0x2>;
};
cpu@3 {
device_type = "cpu";
compatible = "arm,cortex-a7";
reg = <0x3>;
};
};
clocks {
#address-cells = <1>;
#size-cells = <1>;
compatible = "simple-bus";
ranges;
system_clk: dummy13m {
compatible = "fixed-clock";
clock-frequency = <13000000>;
#clock-cells = <0>;
};
rtc_clk: dummy32k {
compatible = "fixed-clock";
clock-frequency = <32000>;
#clock-cells = <0>;
};
};
soc {
#address-cells = <1>;
#size-cells = <1>;
compatible = "simple-bus";
ranges;
timer: timer@10008000 {
compatible = "mediatek,mt6577-timer";
reg = <0x10008000 0x80>;
interrupts = <GIC_SPI 113 IRQ_TYPE_EDGE_RISING>;
clocks = <&system_clk>, <&rtc_clk>;
clock-names = "system-clk", "rtc-clk";
};
gic: interrupt-controller@10212000 {
compatible = "arm,cortex-a15-gic";
interrupt-controller;
#interrupt-cells = <3>;
reg = <0x10211000 0x1000>,
<0x10212000 0x1000>,
<0x10214000 0x2000>,
<0x10216000 0x2000>;
};
};
};

6
arch/arm/mach-mediatek/Kconfig Normal file
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@ -0,0 +1,6 @@
config ARCH_MEDIATEK
bool "Mediatek MT6589 SoC" if ARCH_MULTI_V7
select ARM_GIC
select MTK_TIMER
help
Support for Mediatek Cortex-A7 Quad-Core-SoC MT6589.

1
arch/arm/mach-mediatek/Makefile Normal file
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@ -0,0 +1 @@
obj-$(CONFIG_ARCH_MEDIATEK) += mediatek.o

27
arch/arm/mach-mediatek/mediatek.c Normal file
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@ -0,0 +1,27 @@
/*
* Device Tree support for Mediatek SoCs
*
* Copyright (c) 2014 MundoReader S.L.
* Author: Matthias Brugger <matthias.bgg@gmail.com>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*/
#include <linux/init.h>
#include <asm/mach/arch.h>
static const char * const mediatek_board_dt_compat[] = {
"mediatek,mt6589",
NULL,
};
DT_MACHINE_START(MEDIATEK_DT, "Mediatek Cortex-A7 (Device Tree)")
.dt_compat = mediatek_board_dt_compat,
MACHINE_END