projects / mirror_ubuntu-zesty-kernel.git / blame
| Commit | Line | Data |
|---|---|---|
| 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 |