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
|
/*
* linux/arch/arm/mach-footbridge/cats-hw.c
*
* CATS machine fixup
*
* Copyright (C) 1998, 1999 Russell King, Phil Blundell
*/
#include <linux/ioport.h>
#include <linux/kernel.h>
#include <linux/init.h>
#include <linux/screen_info.h>
#include <linux/io.h>
#include <linux/spinlock.h>
#include <asm/hardware/dec21285.h>
#include <asm/mach-types.h>
#include <asm/setup.h>
#include <asm/mach/arch.h>
#include "common.h"
#define CFG_PORT 0x370
#define INDEX_PORT (CFG_PORT)
#define DATA_PORT (CFG_PORT + 1)
static int __init cats_hw_init(void)
{
if (machine_is_cats()) {
/* Set Aladdin to CONFIGURE mode */
outb(0x51, CFG_PORT);
outb(0x23, CFG_PORT);
/* Select logical device 3 */
outb(0x07, INDEX_PORT);
outb(0x03, DATA_PORT);
/* Set parallel port to DMA channel 3, ECP+EPP1.9,
enable EPP timeout */
outb(0x74, INDEX_PORT);
outb(0x03, DATA_PORT);
outb(0xf0, INDEX_PORT);
outb(0x0f, DATA_PORT);
outb(0xf1, INDEX_PORT);
outb(0x07, DATA_PORT);
/* Select logical device 4 */
outb(0x07, INDEX_PORT);
outb(0x04, DATA_PORT);
/* UART1 high speed mode */
outb(0xf0, INDEX_PORT);
outb(0x02, DATA_PORT);
/* Select logical device 5 */
outb(0x07, INDEX_PORT);
outb(0x05, DATA_PORT);
/* UART2 high speed mode */
outb(0xf0, INDEX_PORT);
outb(0x02, DATA_PORT);
/* Set Aladdin to RUN mode */
outb(0xbb, CFG_PORT);
}
return 0;
}
__initcall(cats_hw_init);
/*
* CATS uses soft-reboot by default, since
* hard reboots fail on early boards.
*/
static void __init
fixup_cats(struct tag *tags, char **cmdline)
{
#if defined(CONFIG_VGA_CONSOLE) || defined(CONFIG_DUMMY_CONSOLE)
screen_info.orig_video_lines = 25;
screen_info.orig_video_points = 16;
screen_info.orig_y = 24;
#endif
}
MACHINE_START(CATS, "Chalice-CATS")
/* Maintainer: Philip Blundell */
.atag_offset = 0x100,
.reboot_mode = REBOOT_SOFT,
.fixup = fixup_cats,
.map_io = footbridge_map_io,
.init_irq = footbridge_init_irq,
.init_time = isa_timer_init,
.restart = footbridge_restart,
MACHINE_END
|
