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
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
|
/*
* Setup pointers to hardware-dependent routines.
*
* This file is subject to the terms and conditions of the GNU General Public
* License. See the file "COPYING" in the main directory of this archive
* for more details.
*
* Copyright (C) 1996, 97, 98, 2000, 03, 04, 06 Ralf Baechle (ralf@linux-mips.org)
*/
#include <linux/eisa.h>
#include <linux/hdreg.h>
#include <linux/ioport.h>
#include <linux/sched.h>
#include <linux/init.h>
#include <linux/interrupt.h>
#include <linux/mc146818rtc.h>
#include <linux/pm.h>
#include <linux/pci.h>
#include <linux/console.h>
#include <linux/fb.h>
#include <linux/screen_info.h>
#ifdef CONFIG_ARC
#include <asm/arc/types.h>
#include <asm/sgialib.h>
#endif
#include <asm/bcache.h>
#include <asm/bootinfo.h>
#include <asm/io.h>
#include <asm/irq.h>
#include <asm/mc146818-time.h>
#include <asm/processor.h>
#include <asm/ptrace.h>
#include <asm/reboot.h>
#include <asm/sni.h>
#include <asm/time.h>
#include <asm/traps.h>
extern void sni_machine_restart(char *command);
extern void sni_machine_halt(void);
extern void sni_machine_power_off(void);
static void __init sni_rm200_pci_timer_setup(struct irqaction *irq)
{
/* set the clock to 100 Hz */
outb_p(0x34,0x43); /* binary, mode 2, LSB/MSB, ch 0 */
outb_p(LATCH & 0xff , 0x40); /* LSB */
outb(LATCH >> 8 , 0x40); /* MSB */
setup_irq(0, irq);
}
/*
* A bit more gossip about the iron we're running on ...
*/
static inline void sni_pcimt_detect(void)
{
char boardtype[80];
unsigned char csmsr;
char *p = boardtype;
unsigned int asic;
csmsr = *(volatile unsigned char *)PCIMT_CSMSR;
p += sprintf(p, "%s PCI", (csmsr & 0x80) ? "RM200" : "RM300");
if ((csmsr & 0x80) == 0)
p += sprintf(p, ", board revision %s",
(csmsr & 0x20) ? "D" : "C");
asic = csmsr & 0x80;
asic = (csmsr & 0x08) ? asic : !asic;
p += sprintf(p, ", ASIC PCI Rev %s", asic ? "1.0" : "1.1");
printk("%s.\n", boardtype);
}
static void __init sni_display_setup(void)
{
#if defined(CONFIG_VT) && defined(CONFIG_VGA_CONSOLE) && defined(CONFIG_ARC)
struct screen_info *si = &screen_info;
DISPLAY_STATUS *di;
di = ArcGetDisplayStatus(1);
if (di) {
si->orig_x = di->CursorXPosition;
si->orig_y = di->CursorYPosition;
si->orig_video_cols = di->CursorMaxXPosition;
si->orig_video_lines = di->CursorMaxYPosition;
si->orig_video_isVGA = VIDEO_TYPE_VGAC;
si->orig_video_points = 16;
}
#endif
}
static struct resource sni_io_resource = {
.start = 0x00001000UL,
.end = 0x03bfffffUL,
.name = "PCIMT IO MEM",
.flags = IORESOURCE_IO,
};
static struct resource pcimt_io_resources[] = {
{
.start = 0x00,
.end = 0x1f,
.name = "dma1",
.flags = IORESOURCE_BUSY
}, {
.start = 0x40,
.end = 0x5f,
.name = "timer",
.flags = IORESOURCE_BUSY
}, {
.start = 0x60,
.end = 0x6f,
.name = "keyboard",
.flags = IORESOURCE_BUSY
}, {
.start = 0x80,
.end = 0x8f,
.name = "dma page reg",
.flags = IORESOURCE_BUSY
}, {
.start = 0xc0,
.end = 0xdf,
.name = "dma2",
.flags = IORESOURCE_BUSY
}, {
.start = 0xcfc,
.end = 0xcff,
.name = "PCI config data",
.flags = IORESOURCE_BUSY
}
};
static struct resource sni_mem_resource = {
.start = 0x10000000UL,
.end = 0xffffffffUL,
.name = "PCIMT PCI MEM",
.flags = IORESOURCE_MEM
};
/*
* The RM200/RM300 has a few holes in it's PCI/EISA memory address space used
* for other purposes. Be paranoid and allocate all of the before the PCI
* code gets a chance to to map anything else there ...
*
* This leaves the following areas available:
*
* 0x10000000 - 0x1009ffff (640kB) PCI/EISA/ISA Bus Memory
* 0x10100000 - 0x13ffffff ( 15MB) PCI/EISA/ISA Bus Memory
* 0x18000000 - 0x1fbfffff (124MB) PCI/EISA Bus Memory
* 0x1ff08000 - 0x1ffeffff (816kB) PCI/EISA Bus Memory
* 0xa0000000 - 0xffffffff (1.5GB) PCI/EISA Bus Memory
*/
static struct resource pcimt_mem_resources[] = {
{
.start = 0x100a0000,
.end = 0x100bffff,
.name = "Video RAM area",
.flags = IORESOURCE_BUSY
}, {
.start = 0x100c0000,
.end = 0x100fffff,
.name = "ISA Reserved",
.flags = IORESOURCE_BUSY
}, {
.start = 0x14000000,
.end = 0x17bfffff,
.name = "PCI IO",
.flags = IORESOURCE_BUSY
}, {
.start = 0x17c00000,
.end = 0x17ffffff,
.name = "Cache Replacement Area",
.flags = IORESOURCE_BUSY
}, {
.start = 0x1a000000,
.end = 0x1a000003,
.name = "PCI INT Acknowledge",
.flags = IORESOURCE_BUSY
}, {
.start = 0x1fc00000,
.end = 0x1fc7ffff,
.name = "Boot PROM",
.flags = IORESOURCE_BUSY
}, {
.start = 0x1fc80000,
.end = 0x1fcfffff,
.name = "Diag PROM",
.flags = IORESOURCE_BUSY
}, {
.start = 0x1fd00000,
.end = 0x1fdfffff,
.name = "X-Bus",
.flags = IORESOURCE_BUSY
}, {
.start = 0x1fe00000,
.end = 0x1fefffff,
.name = "BIOS map",
.flags = IORESOURCE_BUSY
}, {
.start = 0x1ff00000,
.end = 0x1ff7ffff,
.name = "NVRAM / EEPROM",
.flags = IORESOURCE_BUSY
}, {
.start = 0x1fff0000,
.end = 0x1fffefff,
.name = "ASIC PCI",
.flags = IORESOURCE_BUSY
}, {
.start = 0x1ffff000,
.end = 0x1fffffff,
.name = "MP Agent",
.flags = IORESOURCE_BUSY
}, {
.start = 0x20000000,
.end = 0x9fffffff,
.name = "Main Memory",
.flags = IORESOURCE_BUSY
}
};
static void __init sni_resource_init(void)
{
int i;
/* request I/O space for devices used on all i[345]86 PCs */
for (i = 0; i < ARRAY_SIZE(pcimt_io_resources); i++)
request_resource(&ioport_resource, pcimt_io_resources + i);
/* request mem space for pcimt-specific devices */
for (i = 0; i < ARRAY_SIZE(pcimt_mem_resources); i++)
request_resource(&sni_mem_resource, pcimt_mem_resources + i);
ioport_resource.end = sni_io_resource.end;
}
extern struct pci_ops sni_pci_ops;
static struct pci_controller sni_controller = {
.pci_ops = &sni_pci_ops,
.mem_resource = &sni_mem_resource,
.mem_offset = 0x10000000UL,
.io_resource = &sni_io_resource,
.io_offset = 0x00000000UL
};
static inline void sni_pcimt_time_init(void)
{
rtc_mips_get_time = mc146818_get_cmos_time;
rtc_mips_set_time = mc146818_set_rtc_mmss;
}
void __init plat_mem_setup(void)
{
sni_pcimt_detect();
sni_pcimt_sc_init();
sni_pcimt_time_init();
set_io_port_base(SNI_PORT_BASE);
ioport_resource.end = sni_io_resource.end;
/*
* Setup (E)ISA I/O memory access stuff
*/
isa_slot_offset = 0xb0000000;
#ifdef CONFIG_EISA
EISA_bus = 1;
#endif
sni_resource_init();
board_timer_setup = sni_rm200_pci_timer_setup;
_machine_restart = sni_machine_restart;
_machine_halt = sni_machine_halt;
pm_power_off = sni_machine_power_off;
sni_display_setup();
#ifdef CONFIG_PCI
register_pci_controller(&sni_controller);
#endif
}
|
