1*4882a593Smuzhiyun // SPDX-License-Identifier: GPL-2.0
2*4882a593Smuzhiyun //
3*4882a593Smuzhiyun // Samsung's S5PC110/S5PV210 flattened device tree enabled machine.
4*4882a593Smuzhiyun //
5*4882a593Smuzhiyun // Copyright (c) 2013-2014 Samsung Electronics Co., Ltd.
6*4882a593Smuzhiyun // Mateusz Krawczuk <m.krawczuk@partner.samsung.com>
7*4882a593Smuzhiyun // Tomasz Figa <t.figa@samsung.com>
8*4882a593Smuzhiyun
9*4882a593Smuzhiyun #include <linux/of_fdt.h>
10*4882a593Smuzhiyun #include <linux/of_platform.h>
11*4882a593Smuzhiyun
12*4882a593Smuzhiyun #include <asm/mach/arch.h>
13*4882a593Smuzhiyun #include <asm/mach/map.h>
14*4882a593Smuzhiyun #include <asm/system_misc.h>
15*4882a593Smuzhiyun
16*4882a593Smuzhiyun #include "common.h"
17*4882a593Smuzhiyun #include "regs-clock.h"
18*4882a593Smuzhiyun
s5pv210_fdt_map_sys(unsigned long node,const char * uname,int depth,void * data)19*4882a593Smuzhiyun static int __init s5pv210_fdt_map_sys(unsigned long node, const char *uname,
20*4882a593Smuzhiyun int depth, void *data)
21*4882a593Smuzhiyun {
22*4882a593Smuzhiyun struct map_desc iodesc;
23*4882a593Smuzhiyun const __be32 *reg;
24*4882a593Smuzhiyun int len;
25*4882a593Smuzhiyun
26*4882a593Smuzhiyun if (!of_flat_dt_is_compatible(node, "samsung,s5pv210-clock"))
27*4882a593Smuzhiyun return 0;
28*4882a593Smuzhiyun
29*4882a593Smuzhiyun reg = of_get_flat_dt_prop(node, "reg", &len);
30*4882a593Smuzhiyun if (reg == NULL || len != (sizeof(unsigned long) * 2))
31*4882a593Smuzhiyun return 0;
32*4882a593Smuzhiyun
33*4882a593Smuzhiyun iodesc.pfn = __phys_to_pfn(be32_to_cpu(reg[0]));
34*4882a593Smuzhiyun iodesc.length = be32_to_cpu(reg[1]) - 1;
35*4882a593Smuzhiyun iodesc.virtual = (unsigned long)S3C_VA_SYS;
36*4882a593Smuzhiyun iodesc.type = MT_DEVICE;
37*4882a593Smuzhiyun iotable_init(&iodesc, 1);
38*4882a593Smuzhiyun
39*4882a593Smuzhiyun return 1;
40*4882a593Smuzhiyun }
41*4882a593Smuzhiyun
s5pv210_dt_map_io(void)42*4882a593Smuzhiyun static void __init s5pv210_dt_map_io(void)
43*4882a593Smuzhiyun {
44*4882a593Smuzhiyun debug_ll_io_init();
45*4882a593Smuzhiyun
46*4882a593Smuzhiyun of_scan_flat_dt(s5pv210_fdt_map_sys, NULL);
47*4882a593Smuzhiyun }
48*4882a593Smuzhiyun
s5pv210_dt_restart(enum reboot_mode mode,const char * cmd)49*4882a593Smuzhiyun static void s5pv210_dt_restart(enum reboot_mode mode, const char *cmd)
50*4882a593Smuzhiyun {
51*4882a593Smuzhiyun __raw_writel(0x1, S5P_SWRESET);
52*4882a593Smuzhiyun }
53*4882a593Smuzhiyun
s5pv210_dt_init_late(void)54*4882a593Smuzhiyun static void __init s5pv210_dt_init_late(void)
55*4882a593Smuzhiyun {
56*4882a593Smuzhiyun platform_device_register_simple("s5pv210-cpufreq", -1, NULL, 0);
57*4882a593Smuzhiyun s5pv210_pm_init();
58*4882a593Smuzhiyun }
59*4882a593Smuzhiyun
60*4882a593Smuzhiyun static char const *const s5pv210_dt_compat[] __initconst = {
61*4882a593Smuzhiyun "samsung,s5pc110",
62*4882a593Smuzhiyun "samsung,s5pv210",
63*4882a593Smuzhiyun NULL
64*4882a593Smuzhiyun };
65*4882a593Smuzhiyun
66*4882a593Smuzhiyun DT_MACHINE_START(S5PV210_DT, "Samsung S5PC110/S5PV210-based board")
67*4882a593Smuzhiyun .dt_compat = s5pv210_dt_compat,
68*4882a593Smuzhiyun .map_io = s5pv210_dt_map_io,
69*4882a593Smuzhiyun .restart = s5pv210_dt_restart,
70*4882a593Smuzhiyun .init_late = s5pv210_dt_init_late,
71*4882a593Smuzhiyun MACHINE_END
72