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
|
/*
* linux/arch/ppc/kernel/setup.c
*
* Copyright (C) 1995 Linus Torvalds
* Adapted from 'alpha' version by Gary Thomas
* Modified by Cort Dougan (cort@cs.nmt.edu)
*/
/*
* bootup setup stuff..
*/
#include <linux/config.h>
#include <linux/module.h>
#include <linux/errno.h>
#include <linux/sched.h>
#include <linux/kernel.h>
#include <linux/mm.h>
#include <linux/stddef.h>
#include <linux/unistd.h>
#include <linux/ptrace.h>
#include <linux/malloc.h>
#include <linux/user.h>
#include <linux/a.out.h>
#include <linux/tty.h>
#include <linux/major.h>
#include <linux/interrupt.h>
#include <linux/reboot.h>
#include <linux/init.h>
#include <linux/blk.h>
#include <linux/ioport.h>
#include <linux/console.h>
#include <asm/mmu.h>
#include <asm/processor.h>
#include <asm/residual.h>
#include <asm/io.h>
#include <asm/pgtable.h>
#include <asm/ide.h>
#include <asm/cache.h>
#if defined(CONFIG_SOUND) || defined(CONFIG_SOUND_MODULE)
#include <../drivers/sound/sound_config.h>
#include <../drivers/sound/dev_table.h>
#endif
/* for the mac fs */
kdev_t boot_dev;
/* used in nasty hack for sound - see prep_setup_arch() -- Cort */
long ppc_cs4232_dma, ppc_cs4232_dma2;
unsigned long empty_zero_page[1024];
extern PTE *Hash, *Hash_end;
extern unsigned long Hash_size, Hash_mask;
extern int probingmem;
extern unsigned long loops_per_sec;
extern unsigned char aux_device_present;
#ifdef CONFIG_BLK_DEV_RAM
extern int rd_doload; /* 1 = load ramdisk, 0 = don't load */
extern int rd_prompt; /* 1 = prompt for ramdisk, 0 = don't prompt */
extern int rd_image_start; /* starting block # of image */
#endif
__prep
int
prep_get_cpuinfo(char *buffer)
{
extern char *Motherboard_map_name;
int len, i;
#ifdef __SMP__
#define CD(X) (cpu_data[n].X)
#else
#define CD(X) (X)
#endif
len = sprintf(buffer,"machine\t\t: PReP %s\n",Motherboard_map_name);
switch ( _prep_type )
{
case _PREP_IBM:
if ((*(unsigned char *)0x8000080c) & (1<<6))
len += sprintf(buffer+len,"Upgrade CPU\n");
len += sprintf(buffer+len,"L2\t\t: ");
if ((*(unsigned char *)0x8000080c) & (1<<7))
{
len += sprintf(buffer+len,"not present\n");
goto no_l2;
}
len += sprintf(buffer+len,"%sKb,",
(((*(unsigned char *)0x8000080d)>>2)&1)?"512":"256");
len += sprintf(buffer+len,"%sync\n",
((*(unsigned char *)0x8000080d)>>7) ? "":"a");
break;
case _PREP_Motorola:
len += sprintf(buffer+len,"L2\t\t: ");
switch(*((unsigned char *)CACHECRBA) & L2CACHE_MASK)
{
case L2CACHE_512KB:
len += sprintf(buffer+len,"512Kb");
break;
case L2CACHE_256KB:
len += sprintf(buffer+len,"256Kb");
break;
case L2CACHE_1MB:
len += sprintf(buffer+len,"1MB");
break;
case L2CACHE_NONE:
len += sprintf(buffer+len,"none\n");
goto no_l2;
break;
default:
len += sprintf(buffer+len, "%x\n",
*((unsigned char *)CACHECRBA));
}
len += sprintf(buffer+len,",parity %s",
(*((unsigned char *)CACHECRBA) & L2CACHE_PARITY) ?
"enabled" : "disabled");
len += sprintf(buffer+len, " SRAM:");
switch ( ((*((unsigned char *)CACHECRBA) & 0xf0) >> 4) & ~(0x3) )
{
case 1: len += sprintf(buffer+len,
"synchronous,parity,flow-through\n");
break;
case 2: len += sprintf(buffer+len,"asynchronous,no parity\n");
break;
case 3: len += sprintf(buffer+len,"asynchronous,parity\n");
break;
default:len += sprintf(buffer+len,
"synchronous,pipelined,no parity\n");
break;
}
break;
}
no_l2:
if ( res->ResidualLength == 0 )
return len;
/* print info about SIMMs */
len += sprintf(buffer+len,"simms\t\t: ");
for ( i = 0 ; (res->ActualNumMemories) && (i < MAX_MEMS) ; i++ )
{
if ( res->Memories[i].SIMMSize != 0 )
len += sprintf(buffer+len,"%d:%ldM ",i,
(res->Memories[i].SIMMSize > 1024) ?
res->Memories[i].SIMMSize>>20 :
res->Memories[i].SIMMSize);
}
len += sprintf(buffer+len,"\n");
return len;
}
__initfunc(void
prep_setup_arch(unsigned long * memory_start_p, unsigned long * memory_end_p))
{
extern char cmd_line[];
unsigned char reg;
/* init to some ~sane value until calibrate_delay() runs */
loops_per_sec = 50000000;
aux_device_present = 0xaa;
/* Set up floppy in PS/2 mode */
outb(0x09, SIO_CONFIG_RA);
reg = inb(SIO_CONFIG_RD);
reg = (reg & 0x3F) | 0x40;
outb(reg, SIO_CONFIG_RD);
outb(reg, SIO_CONFIG_RD); /* Have to write twice to change! */
/* we should determine this according to what we find! -- Cort */
switch ( _prep_type )
{
case _PREP_IBM:
ROOT_DEV = to_kdev_t(0x0301); /* hda1 */
break;
case _PREP_Motorola:
ROOT_DEV = to_kdev_t(0x0801); /* sda1 */
break;
}
/* Enable L2. Assume we don't need to flush -- Cort*/
*(unsigned char *)(0x8000081c) = *(unsigned char *)(0x8000081c)|3;
printk("Boot arguments: %s\n", cmd_line);
#ifdef CONFIG_SOUND_CS4232
/*
* setup proper values for the cs4232 driver so we don't have
* to recompile for the motorola or ibm workstations sound systems.
* This is a really nasty hack, but unless we change the driver
* it's the only way to support both addrs from one binary.
* -- Cort
*/
if ( is_prep )
{
extern struct card_info snd_installed_cards[];
struct card_info *snd_ptr;
for ( snd_ptr = snd_installed_cards;
snd_ptr < &snd_installed_cards[num_sound_cards];
snd_ptr++ )
{
if ( snd_ptr->card_type == SNDCARD_CS4232 )
{
if ( _prep_type == _PREP_Motorola )
{
snd_ptr->config.io_base = 0x830;
snd_ptr->config.irq = 10;
snd_ptr->config.dma = ppc_cs4232_dma = 6;
snd_ptr->config.dma2 = ppc_cs4232_dma2 = 7;
}
if ( _prep_type == _PREP_IBM )
{
snd_ptr->config.io_base = 0x530;
snd_ptr->config.irq = 5;
snd_ptr->config.dma = ppc_cs4232_dma = 1;
/* this is wrong - but leave it for now */
snd_ptr->config.dma2 = ppc_cs4232_dma2 = 7;
}
}
}
}
#endif /* CONFIG_SOUND_CS4232 */
/*print_residual_device_info();*/
request_region(0x20,0x20,"pic1");
request_region(0xa0,0x20,"pic2");
request_region(0x00,0x20,"dma1");
request_region(0x40,0x20,"timer");
request_region(0x80,0x10,"dma page reg");
request_region(0xc0,0x20,"dma2");
#ifdef CONFIG_VGA_CONSOLE
conswitchp = &vga_con;
#endif
}
__initfunc(void prep_ide_init_hwif_ports (ide_ioreg_t *p, ide_ioreg_t base, int *irq))
{
ide_ioreg_t port = base;
int i = 8;
while (i--)
*p++ = port++;
*p++ = base + 0x206;
if (irq != NULL)
*irq = 0;
}
#ifdef CONFIG_SOUND_MODULE
EXPORT_SYMBOL(ppc_cs4232_dma);
EXPORT_SYMBOL(ppc_cs4232_dma2);
#endif
|
