1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
|
/*
* linux/arch/arm/mach-clps711x/p720t.c
*
* Copyright (C) 2000-2001 Deep Blue Solutions Ltd
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#include <linux/kernel.h>
#include <linux/init.h>
#include <linux/types.h>
#include <linux/string.h>
#include <linux/mm.h>
#include <linux/io.h>
#include <mach/hardware.h>
#include <asm/pgtable.h>
#include <asm/page.h>
#include <asm/setup.h>
#include <asm/sizes.h>
#include <asm/mach-types.h>
#include <asm/mach/arch.h>
#include <asm/mach/map.h>
#include <mach/syspld.h>
#include "common.h"
/*
* Map the P720T system PLD. It occupies two address spaces:
* SYSPLD_PHYS_BASE and SYSPLD_PHYS_BASE + 0x00400000
* We map both here.
*/
static struct map_desc p720t_io_desc[] __initdata = {
{
.virtual = SYSPLD_VIRT_BASE,
.pfn = __phys_to_pfn(SYSPLD_PHYS_BASE),
.length = SZ_1M,
.type = MT_DEVICE
}, {
.virtual = 0xfe400000,
.pfn = __phys_to_pfn(0x10400000),
.length = SZ_1M,
.type = MT_DEVICE
}
};
static void __init
fixup_p720t(struct tag *tag, char **cmdline, struct meminfo *mi)
{
/*
* Our bootloader doesn't setup any tags (yet).
*/
if (tag->hdr.tag != ATAG_CORE) {
tag->hdr.tag = ATAG_CORE;
tag->hdr.size = tag_size(tag_core);
tag->u.core.flags = 0;
tag->u.core.pagesize = PAGE_SIZE;
tag->u.core.rootdev = 0x0100;
tag = tag_next(tag);
tag->hdr.tag = ATAG_MEM;
tag->hdr.size = tag_size(tag_mem32);
tag->u.mem.size = 4096;
tag->u.mem.start = PHYS_OFFSET;
tag = tag_next(tag);
tag->hdr.tag = ATAG_NONE;
tag->hdr.size = 0;
}
}
static void __init p720t_map_io(void)
{
clps711x_map_io();
iotable_init(p720t_io_desc, ARRAY_SIZE(p720t_io_desc));
}
MACHINE_START(P720T, "ARM-Prospector720T")
/* Maintainer: ARM Ltd/Deep Blue Solutions Ltd */
.atag_offset = 0x100,
.fixup = fixup_p720t,
.map_io = p720t_map_io,
.init_irq = clps711x_init_irq,
.timer = &clps711x_timer,
MACHINE_END
static int p720t_hw_init(void)
{
/*
* Power down as much as possible in case we don't
* have the drivers loaded.
*/
PLD_LCDEN = 0;
PLD_PWR &= ~(PLD_S4_ON|PLD_S3_ON|PLD_S2_ON|PLD_S1_ON);
PLD_KBD = 0;
PLD_IO = 0;
PLD_IRDA = 0;
PLD_CODEC = 0;
PLD_TCH = 0;
PLD_SPI = 0;
#ifndef CONFIG_DEBUG_LL
PLD_COM2 = 0;
PLD_COM1 = 0;
#endif
return 0;
}
__initcall(p720t_hw_init);
|
