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ARM: hi3xxx: add board support with device tree

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Add board support with device tree for Hisilicon Hi3620 SoC platform.

Signed-off-by: Haojian Zhuang <haojian.zhuang@linaro.org>
[khilman: fix checkpatch errors]
[khilman: fold in patch which selects GPIO in Kconfig]
Signed-off-by: Kevin Hilman <khilman@linaro.org>
This commit is contained in:
Haojian Zhuang 2013-12-11 15:54:50 +08:00 committed by Kevin Hilman
parent 6ce4eac1f6
commit 2c7268c70f
6 changed files with 87 additions and 0 deletions
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6
Documentation/devicetree/bindings/arm/hisilicon/hisilicon.txt Normal file
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@ -0,0 +1,6 @@
Hisilicon Platforms Device Tree Bindings
----------------------------------------------------
Hi4511 Board
Required root node properties:
- compatible = "hisilicon,hi3620-hi4511";

2
arch/arm/Kconfig
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@ -925,6 +925,8 @@ source "arch/arm/mach-footbridge/Kconfig"
source "arch/arm/mach-gemini/Kconfig"
source "arch/arm/mach-hi3xxx/Kconfig"
source "arch/arm/mach-highbank/Kconfig"
source "arch/arm/mach-integrator/Kconfig"

1
arch/arm/Makefile
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@ -156,6 +156,7 @@ machine-$(CONFIG_ARCH_EBSA110) += ebsa110
machine-$(CONFIG_ARCH_EP93XX) += ep93xx
machine-$(CONFIG_ARCH_EXYNOS) += exynos
machine-$(CONFIG_ARCH_GEMINI) += gemini
machine-$(CONFIG_ARCH_HI3xxx) += hi3xxx
machine-$(CONFIG_ARCH_HIGHBANK) += highbank
machine-$(CONFIG_ARCH_INTEGRATOR) += integrator
machine-$(CONFIG_ARCH_IOP13XX) += iop13xx

13
arch/arm/mach-hi3xxx/Kconfig Normal file
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@ -0,0 +1,13 @@
config ARCH_HI3xxx
bool "Hisilicon Hi36xx/Hi37xx family" if ARCH_MULTI_V7
select ARM_AMBA
select ARM_GIC
select ARM_TIMER_SP804
select ARCH_WANT_OPTIONAL_GPIOLIB
select CACHE_L2X0
select CLKSRC_OF
select GENERIC_CLOCKEVENTS
select PINCTRL
select PINCTRL_SINGLE
help
Support for Hisilicon Hi36xx/Hi37xx processor family

5
arch/arm/mach-hi3xxx/Makefile Normal file
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@ -0,0 +1,5 @@
#
# Makefile for Hisilicon Hi36xx/Hi37xx processors line
#
obj-y += hi3xxx.o

60
arch/arm/mach-hi3xxx/hi3xxx.c Normal file
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@ -0,0 +1,60 @@
5/*
* (Hisilicon's Hi36xx/Hi37xx SoC based) flattened device tree enabled machine
*
* Copyright (c) 2012-2013 Hisilicon Ltd.
* Copyright (c) 2012-2013 Linaro Ltd.
*
* Author: Haojian Zhuang <haojian.zhuang@linaro.org>
*
* 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.
*/
#include <linux/clk-provider.h>
#include <linux/clocksource.h>
#include <linux/irqchip.h>
#include <linux/of_platform.h>
#include <asm/mach/arch.h>
#include <asm/mach/map.h>
/*
* This table is only for optimization. Since ioremap() could always share
* the same mapping if it's defined as static IO mapping.
*
* Without this table, system could also work. The cost is some virtual address
* spaces wasted since ioremap() may be called multi times for the same
* IO space.
*/
static struct map_desc hi3620_io_desc[] __initdata = {
{
.pfn = __phys_to_pfn(0xfc802000),
.virtual = 0xfe802000,
.length = 0x1000,
.type = MT_DEVICE,
},
};
static void __init hi3620_map_io(void)
{
debug_ll_io_init();
iotable_init(hi3620_io_desc, ARRAY_SIZE(hi3620_io_desc));
}
static void __init hi3xxx_timer_init(void)
{
of_clk_init(NULL);
clocksource_of_init();
}
static const char *hi3xxx_compat[] __initconst = {
"hisilicon,hi3620-hi4511",
NULL,
};
DT_MACHINE_START(HI3620, "Hisilicon Hi3620 (Flattened Device Tree)")
.map_io = hi3620_map_io,
.init_time = hi3xxx_timer_init,
.dt_compat = hi3xxx_compat,
MACHINE_END