162306a36Sopenharmony_ci// SPDX-License-Identifier: GPL-2.0 262306a36Sopenharmony_ci// 362306a36Sopenharmony_ci// Samsung's S5PC110/S5PV210 flattened device tree enabled machine. 462306a36Sopenharmony_ci// 562306a36Sopenharmony_ci// Copyright (c) 2013-2014 Samsung Electronics Co., Ltd. 662306a36Sopenharmony_ci// Mateusz Krawczuk <m.krawczuk@partner.samsung.com> 762306a36Sopenharmony_ci// Tomasz Figa <t.figa@samsung.com> 862306a36Sopenharmony_ci 962306a36Sopenharmony_ci#include <linux/of_fdt.h> 1062306a36Sopenharmony_ci#include <linux/platform_device.h> 1162306a36Sopenharmony_ci 1262306a36Sopenharmony_ci#include <asm/mach/arch.h> 1362306a36Sopenharmony_ci#include <asm/mach/map.h> 1462306a36Sopenharmony_ci#include <asm/system_misc.h> 1562306a36Sopenharmony_ci 1662306a36Sopenharmony_ci#include "common.h" 1762306a36Sopenharmony_ci#include "regs-clock.h" 1862306a36Sopenharmony_ci 1962306a36Sopenharmony_cistatic int __init s5pv210_fdt_map_sys(unsigned long node, const char *uname, 2062306a36Sopenharmony_ci int depth, void *data) 2162306a36Sopenharmony_ci{ 2262306a36Sopenharmony_ci struct map_desc iodesc; 2362306a36Sopenharmony_ci const __be32 *reg; 2462306a36Sopenharmony_ci int len; 2562306a36Sopenharmony_ci 2662306a36Sopenharmony_ci if (!of_flat_dt_is_compatible(node, "samsung,s5pv210-clock")) 2762306a36Sopenharmony_ci return 0; 2862306a36Sopenharmony_ci 2962306a36Sopenharmony_ci reg = of_get_flat_dt_prop(node, "reg", &len); 3062306a36Sopenharmony_ci if (reg == NULL || len != (sizeof(unsigned long) * 2)) 3162306a36Sopenharmony_ci return 0; 3262306a36Sopenharmony_ci 3362306a36Sopenharmony_ci iodesc.pfn = __phys_to_pfn(be32_to_cpu(reg[0])); 3462306a36Sopenharmony_ci iodesc.length = be32_to_cpu(reg[1]) - 1; 3562306a36Sopenharmony_ci iodesc.virtual = (unsigned long)S3C_VA_SYS; 3662306a36Sopenharmony_ci iodesc.type = MT_DEVICE; 3762306a36Sopenharmony_ci iotable_init(&iodesc, 1); 3862306a36Sopenharmony_ci 3962306a36Sopenharmony_ci return 1; 4062306a36Sopenharmony_ci} 4162306a36Sopenharmony_ci 4262306a36Sopenharmony_cistatic void __init s5pv210_dt_map_io(void) 4362306a36Sopenharmony_ci{ 4462306a36Sopenharmony_ci debug_ll_io_init(); 4562306a36Sopenharmony_ci 4662306a36Sopenharmony_ci of_scan_flat_dt(s5pv210_fdt_map_sys, NULL); 4762306a36Sopenharmony_ci} 4862306a36Sopenharmony_ci 4962306a36Sopenharmony_cistatic void s5pv210_dt_restart(enum reboot_mode mode, const char *cmd) 5062306a36Sopenharmony_ci{ 5162306a36Sopenharmony_ci __raw_writel(0x1, S5P_SWRESET); 5262306a36Sopenharmony_ci} 5362306a36Sopenharmony_ci 5462306a36Sopenharmony_cistatic void __init s5pv210_dt_init_late(void) 5562306a36Sopenharmony_ci{ 5662306a36Sopenharmony_ci platform_device_register_simple("s5pv210-cpufreq", -1, NULL, 0); 5762306a36Sopenharmony_ci s5pv210_pm_init(); 5862306a36Sopenharmony_ci} 5962306a36Sopenharmony_ci 6062306a36Sopenharmony_cistatic char const *const s5pv210_dt_compat[] __initconst = { 6162306a36Sopenharmony_ci "samsung,s5pc110", 6262306a36Sopenharmony_ci "samsung,s5pv210", 6362306a36Sopenharmony_ci NULL 6462306a36Sopenharmony_ci}; 6562306a36Sopenharmony_ci 6662306a36Sopenharmony_ciDT_MACHINE_START(S5PV210_DT, "Samsung S5PC110/S5PV210-based board") 6762306a36Sopenharmony_ci .dt_compat = s5pv210_dt_compat, 6862306a36Sopenharmony_ci .map_io = s5pv210_dt_map_io, 6962306a36Sopenharmony_ci .restart = s5pv210_dt_restart, 7062306a36Sopenharmony_ci .init_late = s5pv210_dt_init_late, 7162306a36Sopenharmony_ciMACHINE_END 72