Mateusz Krawczuk | adbd1ad | 2013-09-28 18:25:28 +0200 | [diff] [blame] | 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> |
Mateusz Krawczuk | adbd1ad | 2013-09-28 18:25:28 +0200 | [diff] [blame] | 21 | |
Tomasz Figa | 0a90d4d | 2014-07-02 19:37:45 +0200 | [diff] [blame] | 22 | #include "common.h" |
Kukjin Kim | 9740bdd | 2014-08-01 03:22:04 +0900 | [diff] [blame] | 23 | #include "regs-clock.h" |
Tomasz Figa | 0a90d4d | 2014-07-02 19:37:45 +0200 | [diff] [blame] | 24 | |
Mateusz Krawczuk | adbd1ad | 2013-09-28 18:25:28 +0200 | [diff] [blame] | 25 | static int __init s5pv210_fdt_map_sys(unsigned long node, const char *uname, |
| 26 | int depth, void *data) |
| 27 | { |
| 28 | struct map_desc iodesc; |
| 29 | const __be32 *reg; |
| 30 | int len; |
| 31 | |
| 32 | if (!of_flat_dt_is_compatible(node, "samsung,s5pv210-clock")) |
| 33 | return 0; |
| 34 | |
| 35 | reg = of_get_flat_dt_prop(node, "reg", &len); |
| 36 | if (reg == NULL || len != (sizeof(unsigned long) * 2)) |
| 37 | return 0; |
| 38 | |
| 39 | iodesc.pfn = __phys_to_pfn(be32_to_cpu(reg[0])); |
| 40 | iodesc.length = be32_to_cpu(reg[1]) - 1; |
| 41 | iodesc.virtual = (unsigned long)S3C_VA_SYS; |
| 42 | iodesc.type = MT_DEVICE; |
| 43 | iotable_init(&iodesc, 1); |
| 44 | |
| 45 | return 1; |
| 46 | } |
| 47 | |
| 48 | static void __init s5pv210_dt_map_io(void) |
| 49 | { |
| 50 | debug_ll_io_init(); |
| 51 | |
| 52 | of_scan_flat_dt(s5pv210_fdt_map_sys, NULL); |
| 53 | } |
| 54 | |
| 55 | static void s5pv210_dt_restart(enum reboot_mode mode, const char *cmd) |
| 56 | { |
| 57 | __raw_writel(0x1, S5P_SWRESET); |
| 58 | } |
| 59 | |
Tomasz Figa | 0a90d4d | 2014-07-02 19:37:45 +0200 | [diff] [blame] | 60 | static void __init s5pv210_dt_init_late(void) |
| 61 | { |
Tomasz Figa | 7d6764b | 2014-07-03 17:48:48 +0200 | [diff] [blame] | 62 | platform_device_register_simple("s5pv210-cpufreq", -1, NULL, 0); |
Tomasz Figa | 0a90d4d | 2014-07-02 19:37:45 +0200 | [diff] [blame] | 63 | s5pv210_pm_init(); |
| 64 | } |
| 65 | |
Mateusz Krawczuk | adbd1ad | 2013-09-28 18:25:28 +0200 | [diff] [blame] | 66 | static char const *s5pv210_dt_compat[] __initconst = { |
| 67 | "samsung,s5pc110", |
| 68 | "samsung,s5pv210", |
| 69 | NULL |
| 70 | }; |
| 71 | |
| 72 | DT_MACHINE_START(S5PV210_DT, "Samsung S5PC110/S5PV210-based board") |
| 73 | .dt_compat = s5pv210_dt_compat, |
| 74 | .map_io = s5pv210_dt_map_io, |
| 75 | .restart = s5pv210_dt_restart, |
Tomasz Figa | 0a90d4d | 2014-07-02 19:37:45 +0200 | [diff] [blame] | 76 | .init_late = s5pv210_dt_init_late, |
Mateusz Krawczuk | adbd1ad | 2013-09-28 18:25:28 +0200 | [diff] [blame] | 77 | MACHINE_END |