linux/arch/arm/mach-s5pv210/s5pv210.c
Uwe Kleine-König 543c5040f5 ARM: make arrays containing machine compatible strings const
The definition

	static const char *axxia_dt_match[] __initconst = {
		...

defines a changable array of constant strings. That is you must not do:

	*axxia_dt_match[0] = 'k';

but

	axxia_dt_match[0] = "different string";

is fine. So the annotation __initconst is wrong and yields a compiler
error when other really const variables are added with __initconst.

As the struct machine_desc member dt_compat is declared as

	const char *const *dt_compat;

making the arrays const is the better alternative over changing all
annotations to __initdata.

Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2015-02-19 09:44:17 +01:00

78 lines
1.8 KiB
C

/*
* 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 "common.h"
#include "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 void __init s5pv210_dt_init_late(void)
{
platform_device_register_simple("s5pv210-cpufreq", -1, NULL, 0);
s5pv210_pm_init();
}
static char const *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,
.init_late = s5pv210_dt_init_late,
MACHINE_END