72 lines
1.6 KiB
C
72 lines
1.6 KiB
C
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// SPDX-License-Identifier: GPL-2.0
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//
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// Samsung's S5PC110/S5PV210 flattened device tree enabled machine.
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//
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// Copyright (c) 2013-2014 Samsung Electronics Co., Ltd.
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// Mateusz Krawczuk <m.krawczuk@partner.samsung.com>
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// Tomasz Figa <t.figa@samsung.com>
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#include <linux/of_fdt.h>
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#include <linux/of_platform.h>
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#include <asm/mach/arch.h>
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#include <asm/mach/map.h>
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#include <asm/system_misc.h>
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#include "common.h"
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#include "regs-clock.h"
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static int __init s5pv210_fdt_map_sys(unsigned long node, const char *uname,
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int depth, void *data)
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{
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struct map_desc iodesc;
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const __be32 *reg;
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int len;
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if (!of_flat_dt_is_compatible(node, "samsung,s5pv210-clock"))
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return 0;
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reg = of_get_flat_dt_prop(node, "reg", &len);
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if (reg == NULL || len != (sizeof(unsigned long) * 2))
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return 0;
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iodesc.pfn = __phys_to_pfn(be32_to_cpu(reg[0]));
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iodesc.length = be32_to_cpu(reg[1]) - 1;
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iodesc.virtual = (unsigned long)S3C_VA_SYS;
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iodesc.type = MT_DEVICE;
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iotable_init(&iodesc, 1);
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return 1;
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}
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static void __init s5pv210_dt_map_io(void)
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{
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debug_ll_io_init();
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of_scan_flat_dt(s5pv210_fdt_map_sys, NULL);
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}
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static void s5pv210_dt_restart(enum reboot_mode mode, const char *cmd)
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{
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__raw_writel(0x1, S5P_SWRESET);
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}
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static void __init s5pv210_dt_init_late(void)
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{
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platform_device_register_simple("s5pv210-cpufreq", -1, NULL, 0);
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s5pv210_pm_init();
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}
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static char const *const s5pv210_dt_compat[] __initconst = {
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"samsung,s5pc110",
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"samsung,s5pv210",
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NULL
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};
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DT_MACHINE_START(S5PV210_DT, "Samsung S5PC110/S5PV210-based board")
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.dt_compat = s5pv210_dt_compat,
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.map_io = s5pv210_dt_map_io,
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.restart = s5pv210_dt_restart,
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.init_late = s5pv210_dt_init_late,
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MACHINE_END
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