[PATCH] powerpc: Add arch-dependent copy_oldmem_page
[linux-2.6] / arch / arm / mach-clps711x / p720t.c
1 /*
2  *  linux/arch/arm/mach-clps711x/p720t.c
3  *
4  *  Copyright (C) 2000-2001 Deep Blue Solutions Ltd
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/config.h>
21 #include <linux/kernel.h>
22 #include <linux/init.h>
23 #include <linux/types.h>
24 #include <linux/string.h>
25 #include <linux/mm.h>
26
27 #include <asm/hardware.h>
28 #include <asm/io.h>
29 #include <asm/pgtable.h>
30 #include <asm/page.h>
31 #include <asm/setup.h>
32 #include <asm/sizes.h>
33 #include <asm/mach-types.h>
34 #include <asm/mach/arch.h>
35 #include <asm/mach/map.h>
36 #include <asm/arch/syspld.h>
37
38 #include "common.h"
39
40 /*
41  * Map the P720T system PLD.  It occupies two address spaces:
42  *  SYSPLD_PHYS_BASE and SYSPLD_PHYS_BASE + 0x00400000
43  * We map both here.
44  */
45 static struct map_desc p720t_io_desc[] __initdata = {
46         {
47                 .virtual        = SYSPLD_VIRT_BASE,
48                 .pfn            = __phys_to_pfn(SYSPLD_PHYS_BASE),
49                 .length         = SZ_1M,
50                 .type           = MT_DEVICE
51         }, {
52                 .virtual        = 0xfe400000,
53                 .pfn            = __phys_to_pfn(0x10400000),
54                 .length         = SZ_1M,
55                 .type           = MT_DEVICE
56         }
57 };
58
59 static void __init
60 fixup_p720t(struct machine_desc *desc, struct tag *tag,
61             char **cmdline, struct meminfo *mi)
62 {
63         /*
64          * Our bootloader doesn't setup any tags (yet).
65          */
66         if (tag->hdr.tag != ATAG_CORE) {
67                 tag->hdr.tag = ATAG_CORE;
68                 tag->hdr.size = tag_size(tag_core);
69                 tag->u.core.flags = 0;
70                 tag->u.core.pagesize = PAGE_SIZE;
71                 tag->u.core.rootdev = 0x0100;
72
73                 tag = tag_next(tag);
74                 tag->hdr.tag = ATAG_MEM;
75                 tag->hdr.size = tag_size(tag_mem32);
76                 tag->u.mem.size = 4096;
77                 tag->u.mem.start = PHYS_OFFSET;
78
79                 tag = tag_next(tag);
80                 tag->hdr.tag = ATAG_NONE;
81                 tag->hdr.size = 0;
82         }
83 }
84
85 static void __init p720t_map_io(void)
86 {
87         clps711x_map_io();
88         iotable_init(p720t_io_desc, ARRAY_SIZE(p720t_io_desc));
89 }
90
91 MACHINE_START(P720T, "ARM-Prospector720T")
92         /* Maintainer: ARM Ltd/Deep Blue Solutions Ltd */
93         .phys_ram       = 0xc0000000,
94         .phys_io        = 0x80000000,
95         .io_pg_offst    = ((0xff000000) >> 18) & 0xfffc,
96         .boot_params    = 0xc0000100,
97         .fixup          = fixup_p720t,
98         .map_io         = p720t_map_io,
99         .init_irq       = clps711x_init_irq,
100         .timer          = &clps711x_timer,
101 MACHINE_END
102
103 static int p720t_hw_init(void)
104 {
105         /*
106          * Power down as much as possible in case we don't
107          * have the drivers loaded.
108          */
109         PLD_LCDEN = 0;
110         PLD_PWR  &= ~(PLD_S4_ON|PLD_S3_ON|PLD_S2_ON|PLD_S1_ON);
111
112         PLD_KBD   = 0;
113         PLD_IO    = 0;
114         PLD_IRDA  = 0;
115         PLD_CODEC = 0;
116         PLD_TCH   = 0;
117         PLD_SPI   = 0;
118 #ifndef CONFIG_DEBUG_LL
119         PLD_COM2  = 0;
120         PLD_COM1  = 0;
121 #endif
122
123         return 0;
124 }
125
126 __initcall(p720t_hw_init);
127