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31e4001d TF |
1 | /* |
2 | * Samsung's S3C64XX flattened device tree enabled machine | |
3 | * | |
4 | * Copyright (c) 2013 Tomasz Figa <tomasz.figa@gmail.com> | |
5 | * | |
6 | * This program is free software; you can redistribute it and/or modify | |
7 | * it under the terms of the GNU General Public License version 2 as | |
8 | * published by the Free Software Foundation. | |
9 | */ | |
10 | ||
31e4001d TF |
11 | #include <asm/mach/arch.h> |
12 | #include <asm/mach/map.h> | |
13 | #include <asm/system_misc.h> | |
14 | ||
15 | #include <plat/cpu.h> | |
31e4001d TF |
16 | #include <mach/map.h> |
17 | ||
18 | #include "common.h" | |
96bc024c | 19 | #include "watchdog-reset.h" |
31e4001d TF |
20 | |
21 | /* | |
22 | * IO mapping for shared system controller IP. | |
23 | * | |
24 | * FIXME: Make remaining drivers use dynamic mapping. | |
25 | */ | |
26 | static struct map_desc s3c64xx_dt_iodesc[] __initdata = { | |
27 | { | |
28 | .virtual = (unsigned long)S3C_VA_SYS, | |
29 | .pfn = __phys_to_pfn(S3C64XX_PA_SYSCON), | |
30 | .length = SZ_4K, | |
31 | .type = MT_DEVICE, | |
32 | }, | |
33 | }; | |
34 | ||
35 | static void __init s3c64xx_dt_map_io(void) | |
36 | { | |
37 | debug_ll_io_init(); | |
38 | iotable_init(s3c64xx_dt_iodesc, ARRAY_SIZE(s3c64xx_dt_iodesc)); | |
39 | ||
40 | s3c64xx_init_cpu(); | |
41 | ||
42 | if (!soc_is_s3c64xx()) | |
43 | panic("SoC is not S3C64xx!"); | |
44 | } | |
45 | ||
31e4001d TF |
46 | static void __init s3c64xx_dt_init_machine(void) |
47 | { | |
cb120572 | 48 | samsung_wdt_reset_of_init(); |
31e4001d TF |
49 | } |
50 | ||
51 | static void s3c64xx_dt_restart(enum reboot_mode mode, const char *cmd) | |
52 | { | |
53 | if (mode != REBOOT_SOFT) | |
54 | samsung_wdt_reset(); | |
55 | ||
56 | /* if all else fails, or mode was for soft, jump to 0 */ | |
57 | soft_restart(0); | |
58 | } | |
59 | ||
19c233b7 | 60 | static const char *const s3c64xx_dt_compat[] __initconst = { |
31e4001d TF |
61 | "samsung,s3c6400", |
62 | "samsung,s3c6410", | |
63 | NULL | |
64 | }; | |
65 | ||
66 | DT_MACHINE_START(S3C6400_DT, "Samsung S3C64xx (Flattened Device Tree)") | |
67 | /* Maintainer: Tomasz Figa <tomasz.figa@gmail.com> */ | |
68 | .dt_compat = s3c64xx_dt_compat, | |
69 | .map_io = s3c64xx_dt_map_io, | |
31e4001d TF |
70 | .init_machine = s3c64xx_dt_init_machine, |
71 | .restart = s3c64xx_dt_restart, | |
72 | MACHINE_END |