/* * Samsung's S5PC110/S5PV210 flattened device tree enabled machine. * * Copyright (c) 2013-2014 Samsung Electronics Co., Ltd. * Mateusz Krawczuk * Tomasz Figa * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License version 2 as * published by the Free Software Foundation. */ #include #include #include #include #include #include #include "common.h" #include "regs-clock.h" static int __init s5pv210_fdt_map_sys(unsigned long node, const char *uname, int depth, void *data) { struct map_desc iodesc; const __be32 *reg; int len; if (!of_flat_dt_is_compatible(node, "samsung,s5pv210-clock")) return 0; reg = of_get_flat_dt_prop(node, "reg", &len); if (reg == NULL || len != (sizeof(unsigned long) * 2)) return 0; iodesc.pfn = __phys_to_pfn(be32_to_cpu(reg[0])); iodesc.length = be32_to_cpu(reg[1]) - 1; iodesc.virtual = (unsigned long)S3C_VA_SYS; iodesc.type = MT_DEVICE; iotable_init(&iodesc, 1); return 1; } static void __init s5pv210_dt_map_io(void) { debug_ll_io_init(); of_scan_flat_dt(s5pv210_fdt_map_sys, NULL); } static void s5pv210_dt_restart(enum reboot_mode mode, const char *cmd) { __raw_writel(0x1, S5P_SWRESET); } static void __init s5pv210_dt_init_late(void) { platform_device_register_simple("s5pv210-cpufreq", -1, NULL, 0); s5pv210_pm_init(); } static char const *const s5pv210_dt_compat[] __initconst = { "samsung,s5pc110", "samsung,s5pv210", NULL }; DT_MACHINE_START(S5PV210_DT, "Samsung S5PC110/S5PV210-based board") .dt_compat = s5pv210_dt_compat, .map_io = s5pv210_dt_map_io, .restart = s5pv210_dt_restart, .init_late = s5pv210_dt_init_late, MACHINE_END