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ARM: S5PV210: Add board file for boot using Device Tree 

This patch adds board file that will be used to boot S5PV210/S5PC110-based
boards using Device Tree.

Signed-off-by: Mateusz Krawczuk <m.krawczuk@partner.samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
[t.figa: Rebased and cleaned-up a bit.]
Signed-off-by: Tomasz Figa <t.figa@samsung.com>
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
This commit is contained in:
Mateusz Krawczuk 2013-09-28 18:25:28 +02:00 committed by Kukjin Kim
parent 949ccc3a93
commit adbd1ad139
3 changed files with 83 additions and 1 deletions
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14
arch/arm/mach-s5pv210/Kconfig
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@ -194,6 +194,20 @@ config MACH_TORBRECK
help
Machine support for aESOP Torbreck
config MACH_S5PV210_DT
bool "Samsung S5PV210/S5PC110 machine using Device Tree"
select CLKSRC_OF
select CPU_S5PV210
select PINCTRL
select PINCTRL_EXYNOS
select USE_OF
help
Machine support for Samsung S5PV210/S5PC110 machines with Device Tree
enabled.
Select this if a fdt blob is available for your S5PV210 SoC based
board.
Note: This is under development and not all peripherals can be
supported with this machine file.
endmenu
endif

2
arch/arm/mach-s5pv210/Makefile
View File

@ -24,7 +24,7 @@ obj-$(CONFIG_MACH_GONI) += mach-goni.o
obj-$(CONFIG_MACH_SMDKC110) += mach-smdkc110.o
obj-$(CONFIG_MACH_SMDKV210) += mach-smdkv210.o
obj-$(CONFIG_MACH_TORBRECK) += mach-torbreck.o
obj-$(CONFIG_MACH_S5PV210_DT) += s5pv210.o
# device support
obj-y += dev-audio.o

68
arch/arm/mach-s5pv210/s5pv210.c Normal file
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@ -0,0 +1,68 @@
/*
* Samsung's S5PC110/S5PV210 flattened device tree enabled machine.
*
* Copyright (c) 2013-2014 Samsung Electronics Co., Ltd.
* Mateusz Krawczuk <m.krawczuk@partner.samsung.com>
* Tomasz Figa <t.figa@samsung.com>
*
* 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/of_fdt.h>
#include <linux/of_platform.h>
#include <asm/mach/arch.h>
#include <asm/mach/map.h>
#include <asm/system_misc.h>
#include <plat/map-base.h>
#include <mach/regs-clock.h>
static int __init s5pv210_fdt_map_sys(unsigned long node, const char *uname,
int depth, void *data)
{
struct map_desc iodesc;
const __be32 *reg;
int len;
if (!of_flat_dt_is_compatible(node, "samsung,s5pv210-clock"))
return 0;
reg = of_get_flat_dt_prop(node, "reg", &len);
if (reg == NULL || len != (sizeof(unsigned long) * 2))
return 0;
iodesc.pfn = __phys_to_pfn(be32_to_cpu(reg[0]));
iodesc.length = be32_to_cpu(reg[1]) - 1;
iodesc.virtual = (unsigned long)S3C_VA_SYS;
iodesc.type = MT_DEVICE;
iotable_init(&iodesc, 1);
return 1;
}
static void __init s5pv210_dt_map_io(void)
{
debug_ll_io_init();
of_scan_flat_dt(s5pv210_fdt_map_sys, NULL);
}
static void s5pv210_dt_restart(enum reboot_mode mode, const char *cmd)
{
__raw_writel(0x1, S5P_SWRESET);
}
static char const *s5pv210_dt_compat[] __initconst = {
"samsung,s5pc110",
"samsung,s5pv210",
NULL
};
DT_MACHINE_START(S5PV210_DT, "Samsung S5PC110/S5PV210-based board")
.dt_compat = s5pv210_dt_compat,
.map_io = s5pv210_dt_map_io,
.restart = s5pv210_dt_restart,
MACHINE_END