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
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
|
/*
* Carsten Langgaard, carstenl@mips.com
* Copyright (C) 2000 MIPS Technologies, Inc. All rights reserved.
*
* This program is free software; you can distribute it and/or modify it
* under the terms of the GNU General Public License (Version 2) as
* published by the Free Software Foundation.
*
* This program is distributed in the hope 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/config.h>
#include <linux/init.h>
#include <linux/sched.h>
#include <linux/ioport.h>
#include <linux/pci.h>
#include <linux/tty.h>
#ifdef CONFIG_MTD
#include <linux/mtd/partitions.h>
#include <linux/mtd/physmap.h>
#include <linux/mtd/mtd.h>
#include <linux/mtd/map.h>
#endif
#include <asm/cpu.h>
#include <asm/bootinfo.h>
#include <asm/irq.h>
#include <asm/mips-boards/generic.h>
#include <asm/mips-boards/prom.h>
#include <asm/mips-boards/malta.h>
#include <asm/mips-boards/maltaint.h>
#include <asm/dma.h>
#include <asm/time.h>
#include <asm/traps.h>
#ifdef CONFIG_VT
#include <linux/console.h>
#endif
extern void mips_reboot_setup(void);
extern void mips_time_init(void);
extern void mips_timer_setup(struct irqaction *irq);
extern unsigned long mips_rtc_get_time(void);
#ifdef CONFIG_KGDB
extern void kgdb_config(void);
#endif
struct resource standard_io_resources[] = {
{ .name = "dma1", .start = 0x00, .end = 0x1f, .flags = IORESOURCE_BUSY },
{ .name = "timer", .start = 0x40, .end = 0x5f, .flags = IORESOURCE_BUSY },
{ .name = "keyboard", .start = 0x60, .end = 0x6f, .flags = IORESOURCE_BUSY },
{ .name = "dma page reg", .start = 0x80, .end = 0x8f, .flags = IORESOURCE_BUSY },
{ .name = "dma2", .start = 0xc0, .end = 0xdf, .flags = IORESOURCE_BUSY },
};
#ifdef CONFIG_MTD
static struct mtd_partition malta_mtd_partitions[] = {
{
.name = "YAMON",
.offset = 0x0,
.size = 0x100000,
.mask_flags = MTD_WRITEABLE
},
{
.name = "User FS",
.offset = 0x100000,
.size = 0x2e0000
},
{
.name = "Board Config",
.offset = 0x3e0000,
.size = 0x020000,
.mask_flags = MTD_WRITEABLE
}
};
#define number_partitions (sizeof(malta_mtd_partitions)/sizeof(struct mtd_partition))
#endif
const char *get_system_type(void)
{
return "MIPS Malta";
}
#ifdef CONFIG_BLK_DEV_FD
void __init fd_activate(void)
{
/*
* Activate Floppy Controller in the SMSC FDC37M817 Super I/O
* Controller.
* Done by YAMON 2.00 onwards
*/
/* Entering config state. */
SMSC_WRITE(SMSC_CONFIG_ENTER, SMSC_CONFIG_REG);
/* Activate floppy controller. */
SMSC_WRITE(SMSC_CONFIG_DEVNUM, SMSC_CONFIG_REG);
SMSC_WRITE(SMSC_CONFIG_DEVNUM_FLOPPY, SMSC_DATA_REG);
SMSC_WRITE(SMSC_CONFIG_ACTIVATE, SMSC_CONFIG_REG);
SMSC_WRITE(SMSC_CONFIG_ACTIVATE_ENABLE, SMSC_DATA_REG);
/* Exit config state. */
SMSC_WRITE(SMSC_CONFIG_EXIT, SMSC_CONFIG_REG);
}
#endif
void __init plat_mem_setup(void)
{
unsigned int i;
mips_pcibios_init();
/* Request I/O space for devices used on the Malta board. */
for (i = 0; i < ARRAY_SIZE(standard_io_resources); i++)
request_resource(&ioport_resource, standard_io_resources+i);
/*
* Enable DMA channel 4 (cascade channel) in the PIIX4 south bridge.
*/
enable_dma(4);
#ifdef CONFIG_KGDB
kgdb_config ();
#endif
if ((mips_revision_corid == MIPS_REVISION_CORID_BONITO64) ||
(mips_revision_corid == MIPS_REVISION_CORID_CORE_20K) ||
(mips_revision_corid == MIPS_REVISION_CORID_CORE_EMUL_BON)) {
char *argptr;
argptr = prom_getcmdline();
if (strstr(argptr, "debug")) {
BONITO_BONGENCFG |= BONITO_BONGENCFG_DEBUGMODE;
printk ("Enabled Bonito debug mode\n");
}
else
BONITO_BONGENCFG &= ~BONITO_BONGENCFG_DEBUGMODE;
#ifdef CONFIG_DMA_COHERENT
if (BONITO_PCICACHECTRL & BONITO_PCICACHECTRL_CPUCOH_PRES) {
BONITO_PCICACHECTRL |= BONITO_PCICACHECTRL_CPUCOH_EN;
printk("Enabled Bonito CPU coherency\n");
argptr = prom_getcmdline();
if (strstr(argptr, "iobcuncached")) {
BONITO_PCICACHECTRL &= ~BONITO_PCICACHECTRL_IOBCCOH_EN;
BONITO_PCIMEMBASECFG = BONITO_PCIMEMBASECFG &
~(BONITO_PCIMEMBASECFG_MEMBASE0_CACHED |
BONITO_PCIMEMBASECFG_MEMBASE1_CACHED);
printk("Disabled Bonito IOBC coherency\n");
}
else {
BONITO_PCICACHECTRL |= BONITO_PCICACHECTRL_IOBCCOH_EN;
BONITO_PCIMEMBASECFG |=
(BONITO_PCIMEMBASECFG_MEMBASE0_CACHED |
BONITO_PCIMEMBASECFG_MEMBASE1_CACHED);
printk("Disabled Bonito IOBC coherency\n");
}
}
else
panic("Hardware DMA cache coherency not supported");
#endif
}
#ifdef CONFIG_DMA_COHERENT
else {
panic("Hardware DMA cache coherency not supported");
}
#endif
#ifdef CONFIG_BLK_DEV_IDE
/* Check PCI clock */
{
int jmpr = (*((volatile unsigned int *)ioremap(MALTA_JMPRS_REG, sizeof(unsigned int))) >> 2) & 0x07;
static const int pciclocks[] __initdata = {
33, 20, 25, 30, 12, 16, 37, 10
};
int pciclock = pciclocks[jmpr];
char *argptr = prom_getcmdline();
if (pciclock != 33 && !strstr (argptr, "idebus=")) {
printk("WARNING: PCI clock is %dMHz, setting idebus\n", pciclock);
argptr += strlen(argptr);
sprintf (argptr, " idebus=%d", pciclock);
if (pciclock < 20 || pciclock > 66)
printk ("WARNING: IDE timing calculations will be incorrect\n");
}
}
#endif
#ifdef CONFIG_BLK_DEV_FD
fd_activate ();
#endif
#ifdef CONFIG_VT
#if defined(CONFIG_VGA_CONSOLE)
screen_info = (struct screen_info) {
0, 25, /* orig-x, orig-y */
0, /* unused */
0, /* orig-video-page */
0, /* orig-video-mode */
80, /* orig-video-cols */
0,0,0, /* ega_ax, ega_bx, ega_cx */
25, /* orig-video-lines */
VIDEO_TYPE_VGAC, /* orig-video-isVGA */
16 /* orig-video-points */
};
#endif
#endif
#ifdef CONFIG_MTD
/*
* Support for MTD on Malta. Use the generic physmap driver
*/
physmap_configure(0x1e000000, 0x400000, 4, NULL);
physmap_set_partitions(malta_mtd_partitions, number_partitions);
#endif
mips_reboot_setup();
board_time_init = mips_time_init;
board_timer_setup = mips_timer_setup;
rtc_mips_get_time = mips_rtc_get_time;
}
|
