projects / linux-2.6-block.git / blame
| Commit | Line | Data |
|---|---|---|
| adbd1ad1 MK |
1 | /* |
| 2 | * Samsung's S5PC110/S5PV210 flattened device tree enabled machine. | |
| 3 | * | |
| 4 | * Copyright (c) 2013-2014 Samsung Electronics Co., Ltd. | |
| 5 | * Mateusz Krawczuk <m.krawczuk@partner.samsung.com> | |
| 6 | * Tomasz Figa <t.figa@samsung.com> | |
| 7 | * | |
| 8 | * This program is free software; you can redistribute it and/or modify | |
| 9 | * it under the terms of the GNU General Public License version 2 as | |
| 10 | * published by the Free Software Foundation. | |
| 11 | */ | |
| 12 | ||
| 13 | #include <linux/of_fdt.h> | |
| 14 | #include <linux/of_platform.h> | |
| 15 | ||
| 16 | #include <asm/mach/arch.h> | |
| 17 | #include <asm/mach/map.h> | |
| 18 | #include <asm/system_misc.h> | |
| 19 | ||
| 20 | #include <plat/map-base.h> | |
| 21 | #include <mach/regs-clock.h> | |
| 22 | ||
| 23 | static int __init s5pv210_fdt_map_sys(unsigned long node, const char *uname, | |
| 24 | int depth, void *data) | |
| 25 | { | |
| 26 | struct map_desc iodesc; | |
| 27 | const __be32 *reg; | |
| 28 | int len; | |
| 29 | ||
| 30 | if (!of_flat_dt_is_compatible(node, "samsung,s5pv210-clock")) | |
| 31 | return 0; | |
| 32 | ||
| 33 | reg = of_get_flat_dt_prop(node, "reg", &len); | |
| 34 | if (reg == NULL || len != (sizeof(unsigned long) * 2)) | |
| 35 | return 0; | |
| 36 | ||
| 37 | iodesc.pfn = __phys_to_pfn(be32_to_cpu(reg[0])); | |
| 38 | iodesc.length = be32_to_cpu(reg[1]) - 1; | |
| 39 | iodesc.virtual = (unsigned long)S3C_VA_SYS; | |
| 40 | iodesc.type = MT_DEVICE; | |
| 41 | iotable_init(&iodesc, 1); | |
| 42 | ||
| 43 | return 1; | |
| 44 | } | |
| 45 | ||
| 46 | static void __init s5pv210_dt_map_io(void) | |
| 47 | { | |
| 48 | debug_ll_io_init(); | |
| 49 | ||
| 50 | of_scan_flat_dt(s5pv210_fdt_map_sys, NULL); | |
| 51 | } | |
| 52 | ||
| 53 | static void s5pv210_dt_restart(enum reboot_mode mode, const char *cmd) | |
| 54 | { | |
| 55 | __raw_writel(0x1, S5P_SWRESET); | |
| 56 | } | |
| 57 | ||
| 58 | static char const *s5pv210_dt_compat[] __initconst = { | |
| 59 | "samsung,s5pc110", | |
| 60 | "samsung,s5pv210", | |
| 61 | NULL | |
| 62 | }; | |
| 63 | ||
| 64 | DT_MACHINE_START(S5PV210_DT, "Samsung S5PC110/S5PV210-based board") | |
| 65 | .dt_compat = s5pv210_dt_compat, | |
| 66 | .map_io = s5pv210_dt_map_io, | |
| 67 | .restart = s5pv210_dt_restart, | |
| 68 | MACHINE_END |