diff options
Diffstat (limited to 'arch/arm/mach-s5pv210/s5pv210.c')
| -rw-r--r-- | arch/arm/mach-s5pv210/s5pv210.c | 71 |
1 files changed, 71 insertions, 0 deletions
diff --git a/arch/arm/mach-s5pv210/s5pv210.c b/arch/arm/mach-s5pv210/s5pv210.c new file mode 100644 index 000000000..a21ed3bb9 --- /dev/null +++ b/arch/arm/mach-s5pv210/s5pv210.c @@ -0,0 +1,71 @@ +// 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 |