1 // SPDX-License-Identifier: GPL-2.0
2 //
3 // Samsung's S3C64XX flattened device tree enabled machine
4 //
5 // Copyright (c) 2013 Tomasz Figa <tomasz.figa@gmail.com>
6 
7 #include <asm/mach/arch.h>
8 #include <asm/mach/map.h>
9 #include <asm/system_misc.h>
10 
11 #include "cpu.h"
12 #include "map.h"
13 
14 #include "s3c64xx.h"
15 
16 /*
17  * IO mapping for shared system controller IP.
18  *
19  * FIXME: Make remaining drivers use dynamic mapping.
20  */
21 static struct map_desc s3c64xx_dt_iodesc[] __initdata = {
22 	{
23 		.virtual	= (unsigned long)S3C_VA_SYS,
24 		.pfn		= __phys_to_pfn(S3C64XX_PA_SYSCON),
25 		.length		= SZ_4K,
26 		.type		= MT_DEVICE,
27 	},
28 };
29 
s3c64xx_dt_map_io(void)30 static void __init s3c64xx_dt_map_io(void)
31 {
32 	debug_ll_io_init();
33 	iotable_init(s3c64xx_dt_iodesc, ARRAY_SIZE(s3c64xx_dt_iodesc));
34 
35 	s3c64xx_init_cpu();
36 
37 	if (!soc_is_s3c64xx())
38 		panic("SoC is not S3C64xx!");
39 }
40 
41 static const char *const s3c64xx_dt_compat[] __initconst = {
42 	"samsung,s3c6400",
43 	"samsung,s3c6410",
44 	NULL
45 };
46 
47 DT_MACHINE_START(S3C6400_DT, "Samsung S3C64xx (Flattened Device Tree)")
48 	/* Maintainer: Tomasz Figa <tomasz.figa@gmail.com> */
49 	.dt_compat	= s3c64xx_dt_compat,
50 	.map_io		= s3c64xx_dt_map_io,
51 MACHINE_END
52