Commit | Line | Data |
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1da177e4 LT |
1 | /* |
2 | * init.c, Common initialization routines for NEC VR4100 series. | |
3 | * | |
66a0f0f2 | 4 | * Copyright (C) 2003-2009 Yoichi Yuasa <yuasa@linux-mips.org> |
1da177e4 LT |
5 | * |
6 | * This program is free software; you can redistribute it and/or modify | |
7 | * it under the terms of the GNU General Public License as published by | |
8 | * the Free Software Foundation; either version 2 of the License, or | |
9 | * (at your option) any later version. | |
10 | * | |
11 | * This program is distributed in the hope that it will be useful, | |
12 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
13 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
14 | * GNU General Public License for more details. | |
15 | * | |
16 | * You should have received a copy of the GNU General Public License | |
17 | * along with this program; if not, write to the Free Software | |
18 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA | |
19 | */ | |
20 | #include <linux/init.h> | |
21 | #include <linux/ioport.h> | |
22 | #include <linux/irq.h> | |
23 | #include <linux/string.h> | |
24 | ||
25 | #include <asm/bootinfo.h> | |
26 | #include <asm/time.h> | |
66151bbd | 27 | #include <asm/vr41xx/irq.h> |
1da177e4 LT |
28 | #include <asm/vr41xx/vr41xx.h> |
29 | ||
30 | #define IO_MEM_RESOURCE_START 0UL | |
31 | #define IO_MEM_RESOURCE_END 0x1fffffffUL | |
32 | ||
33 | static void __init iomem_resource_init(void) | |
34 | { | |
35 | iomem_resource.start = IO_MEM_RESOURCE_START; | |
36 | iomem_resource.end = IO_MEM_RESOURCE_END; | |
37 | } | |
38 | ||
4b550488 | 39 | void __init plat_time_init(void) |
1da177e4 LT |
40 | { |
41 | unsigned long tclock; | |
42 | ||
991f8b6a YY |
43 | vr41xx_calculate_clock_frequency(); |
44 | ||
1da177e4 LT |
45 | tclock = vr41xx_get_tclock_frequency(); |
46 | if (current_cpu_data.processor_id == PRID_VR4131_REV2_0 || | |
47 | current_cpu_data.processor_id == PRID_VR4131_REV2_1) | |
48 | mips_hpt_frequency = tclock / 2; | |
49 | else | |
50 | mips_hpt_frequency = tclock / 4; | |
51 | } | |
52 | ||
2925aba4 | 53 | void __init plat_mem_setup(void) |
c83cfc9c | 54 | { |
c83cfc9c | 55 | iomem_resource_init(); |
fc3f341b YY |
56 | |
57 | vr41xx_siu_setup(); | |
c83cfc9c RB |
58 | } |
59 | ||
1da177e4 LT |
60 | void __init prom_init(void) |
61 | { | |
62 | int argc, i; | |
63 | char **argv; | |
64 | ||
65 | argc = fw_arg0; | |
66 | argv = (char **)fw_arg1; | |
67 | ||
68 | for (i = 1; i < argc; i++) { | |
66a0f0f2 | 69 | strlcat(arcs_cmdline, argv[i], COMMAND_LINE_SIZE); |
1da177e4 | 70 | if (i < (argc - 1)) |
66a0f0f2 | 71 | strlcat(arcs_cmdline, " ", COMMAND_LINE_SIZE); |
1da177e4 | 72 | } |
1da177e4 LT |
73 | } |
74 | ||
c44e8d5e | 75 | void __init prom_free_prom_memory(void) |
1da177e4 | 76 | { |
1da177e4 | 77 | } |