linuxdebug/arch/arm/mach-s3c/mach-s3c64xx-dt.c

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2024-07-16 15:50:57 +02:00
// SPDX-License-Identifier: GPL-2.0
//
// Samsung's S3C64XX flattened device tree enabled machine
//
// Copyright (c) 2013 Tomasz Figa <tomasz.figa@gmail.com>
#include <asm/mach/arch.h>
#include <asm/mach/map.h>
#include <asm/system_misc.h>
#include "cpu.h"
#include "map.h"
#include "s3c64xx.h"
/*
* IO mapping for shared system controller IP.
*
* FIXME: Make remaining drivers use dynamic mapping.
*/
static struct map_desc s3c64xx_dt_iodesc[] __initdata = {
{
.virtual = (unsigned long)S3C_VA_SYS,
.pfn = __phys_to_pfn(S3C64XX_PA_SYSCON),
.length = SZ_4K,
.type = MT_DEVICE,
},
};
static void __init s3c64xx_dt_map_io(void)
{
debug_ll_io_init();
iotable_init(s3c64xx_dt_iodesc, ARRAY_SIZE(s3c64xx_dt_iodesc));
s3c64xx_init_cpu();
if (!soc_is_s3c64xx())
panic("SoC is not S3C64xx!");
}
static const char *const s3c64xx_dt_compat[] __initconst = {
"samsung,s3c6400",
"samsung,s3c6410",
NULL
};
DT_MACHINE_START(S3C6400_DT, "Samsung S3C64xx (Flattened Device Tree)")
/* Maintainer: Tomasz Figa <tomasz.figa@gmail.com> */
.dt_compat = s3c64xx_dt_compat,
.map_io = s3c64xx_dt_map_io,
MACHINE_END