| // SPDX-License-Identifier: GPL-2.0 |
| // |
| // Samsung's S5PC110/S5PV210 flattened device tree enabled machine. |
| // |
| // Copyright (c) 2013-2014 Samsung Electronics Co., Ltd. |
| // Mateusz Krawczuk <m.krawczuk@partner.samsung.com> |
| // Tomasz Figa <t.figa@samsung.com> |
| |
| #include <linux/of_fdt.h> |
| #include <linux/of_platform.h> |
| |
| #include <asm/mach/arch.h> |
| #include <asm/mach/map.h> |
| #include <asm/system_misc.h> |
| |
| #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 |
