projects / linux.git / blame
| Commit | Line | Data |
|---|---|---|
| 31e4001d TF |
1 | /* |
| 2 | * Samsung's S3C64XX flattened device tree enabled machine | |
| 3 | * | |
| 4 | * Copyright (c) 2013 Tomasz Figa <[email protected]> | |
| 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 <linux/of_platform.h> |
| 12 | ||
| 13 | #include <asm/mach/arch.h> | |
| 14 | #include <asm/mach/map.h> | |
| 15 | #include <asm/system_misc.h> | |
| 16 | ||
| 17 | #include <plat/cpu.h> | |
| 31e4001d TF |
18 | #include <mach/map.h> |
| 19 | ||
| 20 | #include "common.h" | |
| 96bc024c | 21 | #include "watchdog-reset.h" |
| 31e4001d TF |
22 | |
| 23 | /* | |
| 24 | * IO mapping for shared system controller IP. | |
| 25 | * | |
| 26 | * FIXME: Make remaining drivers use dynamic mapping. | |
| 27 | */ | |
| 28 | static struct map_desc s3c64xx_dt_iodesc[] __initdata = { | |
| 29 | { | |
| 30 | .virtual = (unsigned long)S3C_VA_SYS, | |
| 31 | .pfn = __phys_to_pfn(S3C64XX_PA_SYSCON), | |
| 32 | .length = SZ_4K, | |
| 33 | .type = MT_DEVICE, | |
| 34 | }, | |
| 35 | }; | |
| 36 | ||
| 37 | static void __init s3c64xx_dt_map_io(void) | |
| 38 | { | |
| 39 | debug_ll_io_init(); | |
| 40 | iotable_init(s3c64xx_dt_iodesc, ARRAY_SIZE(s3c64xx_dt_iodesc)); | |
| 41 | ||
| 42 | s3c64xx_init_cpu(); | |
| 43 | ||
| 44 | if (!soc_is_s3c64xx()) | |
| 45 | panic("SoC is not S3C64xx!"); | |
| 46 | } | |
| 47 | ||
| 31e4001d TF |
48 | static void __init s3c64xx_dt_init_machine(void) |
| 49 | { | |
| cb120572 | 50 | samsung_wdt_reset_of_init(); |
| 31e4001d TF |
51 | of_platform_populate(NULL, of_default_bus_match_table, NULL, NULL); |
| 52 | } | |
| 53 | ||
| 54 | static void s3c64xx_dt_restart(enum reboot_mode mode, const char *cmd) | |
| 55 | { | |
| 56 | if (mode != REBOOT_SOFT) | |
| 57 | samsung_wdt_reset(); | |
| 58 | ||
| 59 | /* if all else fails, or mode was for soft, jump to 0 */ | |
| 60 | soft_restart(0); | |
| 61 | } | |
| 62 | ||
| 19c233b7 | 63 | static const char *const s3c64xx_dt_compat[] __initconst = { |
| 31e4001d TF |
64 | "samsung,s3c6400", |
| 65 | "samsung,s3c6410", | |
| 66 | NULL | |
| 67 | }; | |
| 68 | ||
| 69 | DT_MACHINE_START(S3C6400_DT, "Samsung S3C64xx (Flattened Device Tree)") | |
| 70 | /* Maintainer: Tomasz Figa <[email protected]> */ | |
| 71 | .dt_compat = s3c64xx_dt_compat, | |
| 72 | .map_io = s3c64xx_dt_map_io, | |
| 31e4001d TF |
73 | .init_machine = s3c64xx_dt_init_machine, |
| 74 | .restart = s3c64xx_dt_restart, | |
| 75 | MACHINE_END |