summaryrefslogtreecommitdiffstats
path: root/arch/m68knommu/kernel/setup.c
blob: 99d038e9ab31919d55588e28575488d2bd469ffc (plain)
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
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
/*
 *  linux/arch/m68knommu/kernel/setup.c
 *
 *  Copyright (C) 1999-2004  Greg Ungerer (gerg@snapgear.com)
 *  Copyright (C) 1998,1999  D. Jeff Dionne <jeff@lineo.ca>
 *  Copyleft  ()) 2000       James D. Schettine {james@telos-systems.com}
 *  Copyright (C) 1998       Kenneth Albanowski <kjahds@kjahds.com>
 *  Copyright (C) 1995       Hamish Macdonald
 *  Copyright (C) 2000       Lineo Inc. (www.lineo.com)
 *  Copyright (C) 2001 	     Lineo, Inc. <www.lineo.com>
 *
 *  68VZ328 Fixes/support    Evan Stawnyczy <e@lineo.ca>
 */

/*
 * This file handles the architecture-dependent parts of system setup
 */

#include <linux/config.h>
#include <linux/kernel.h>
#include <linux/sched.h>
#include <linux/delay.h>
#include <linux/interrupt.h>
#include <linux/fs.h>
#include <linux/fb.h>
#include <linux/module.h>
#include <linux/console.h>
#include <linux/genhd.h>
#include <linux/errno.h>
#include <linux/string.h>
#include <linux/major.h>
#include <linux/bootmem.h>
#include <linux/seq_file.h>
#include <linux/root_dev.h>
#include <linux/init.h>

#include <asm/setup.h>
#include <asm/irq.h>
#include <asm/machdep.h>

#ifdef CONFIG_BLK_DEV_INITRD
#include <asm/pgtable.h>
#endif

unsigned long memory_start;
unsigned long memory_end;

EXPORT_SYMBOL(memory_start);
EXPORT_SYMBOL(memory_end);

char command_line[COMMAND_LINE_SIZE];

/* setup some dummy routines */
static void dummy_waitbut(void)
{
}

void (*mach_sched_init) (irqreturn_t (*handler)(int, void *, struct pt_regs *));
void (*mach_tick)( void );
/* machine dependent keyboard functions */
int (*mach_keyb_init) (void);
int (*mach_kbdrate) (struct kbd_repeat *);
void (*mach_kbd_leds) (unsigned int);
/* machine dependent irq functions */
void (*mach_init_IRQ) (void);
irqreturn_t (*(*mach_default_handler)[]) (int, void *, struct pt_regs *);
int (*mach_get_irq_list) (struct seq_file *, void *);
void (*mach_process_int) (int irq, struct pt_regs *fp);
void (*mach_trap_init) (void);
/* machine dependent timer functions */
unsigned long (*mach_gettimeoffset) (void);
void (*mach_gettod) (int*, int*, int*, int*, int*, int*);
int (*mach_hwclk) (int, struct hwclk_time*);
int (*mach_set_clock_mmss) (unsigned long);
void (*mach_mksound)( unsigned int count, unsigned int ticks );
void (*mach_reset)( void );
void (*waitbut)(void) = dummy_waitbut;
void (*mach_debug_init)(void);
void (*mach_halt)( void );
void (*mach_power_off)( void );


#ifdef CONFIG_M68000
	#define CPU "MC68000"
#endif
#ifdef CONFIG_M68328
	#define CPU "MC68328"
#endif
#ifdef CONFIG_M68EZ328
	#define CPU "MC68EZ328"
#endif
#ifdef CONFIG_M68VZ328
	#define CPU "MC68VZ328"
#endif
#ifdef CONFIG_M68332
	#define CPU "MC68332"
#endif
#ifdef CONFIG_M68360
	#define CPU "MC68360"
#endif
#if defined(CONFIG_M5206)
	#define	CPU "COLDFIRE(m5206)"
#endif
#if defined(CONFIG_M5206e)
	#define	CPU "COLDFIRE(m5206e)"
#endif
#if defined(CONFIG_M520x)
	#define CPU "COLDFIRE(m520x)"
#endif
#if defined(CONFIG_M523x)
	#define CPU "COLDFIRE(m523x)"
#endif
#if defined(CONFIG_M5249)
	#define CPU "COLDFIRE(m5249)"
#endif
#if defined(CONFIG_M5271)
	#define CPU "COLDFIRE(m5270/5271)"
#endif
#if defined(CONFIG_M5272)
	#define CPU "COLDFIRE(m5272)"
#endif
#if defined(CONFIG_M5275)
	#define CPU "COLDFIRE(m5274/5275)"
#endif
#if defined(CONFIG_M528x)
	#define CPU "COLDFIRE(m5280/5282)"
#endif
#if defined(CONFIG_M5307)
	#define	CPU "COLDFIRE(m5307)"
#endif
#if defined(CONFIG_M532x)
	#define	CPU "COLDFIRE(m532x)"
#endif
#if defined(CONFIG_M5407)
	#define	CPU "COLDFIRE(m5407)"
#endif
#ifndef CPU
	#define	CPU "UNKNOWN"
#endif

/* (es) */
/* note: why is this defined here?  the must be a better place to put this */
#if defined( CONFIG_TELOS) || defined( CONFIG_UCDIMM ) || defined( CONFIG_UCSIMM ) || defined(CONFIG_DRAGEN2) || (defined( CONFIG_PILOT ) && defined( CONFIG_M68328 ))
#define CAT_ROMARRAY
#endif
/* (/es) */

extern int _stext, _etext, _sdata, _edata, _sbss, _ebss, _end;
extern int _ramstart, _ramend;

void setup_arch(char **cmdline_p)
{
	int bootmap_size;

#if defined(CAT_ROMARRAY) && defined(DEBUG)
	extern int __data_rom_start;
	extern int __data_start;
	int *romarray = (int *)((int) &__data_rom_start +
			      (int)&_edata - (int)&__data_start);
#endif

	memory_start = PAGE_ALIGN(_ramstart);
	memory_end = _ramend; /* by now the stack is part of the init task */

	init_mm.start_code = (unsigned long) &_stext;
	init_mm.end_code = (unsigned long) &_etext;
	init_mm.end_data = (unsigned long) &_edata;
	init_mm.brk = (unsigned long) 0;

	config_BSP(&command_line[0], sizeof(command_line));

	printk(KERN_INFO "\x0F\r\n\nuClinux/" CPU "\n");

#ifdef CONFIG_UCDIMM
	printk(KERN_INFO "uCdimm by Lineo, Inc. <www.lineo.com>\n");
#endif
#ifdef CONFIG_M68VZ328
	printk(KERN_INFO "M68VZ328 support by Evan Stawnyczy <e@lineo.ca>\n");
#endif
#ifdef CONFIG_COLDFIRE
	printk(KERN_INFO "COLDFIRE port done by Greg Ungerer, gerg@snapgear.com\n");
#ifdef CONFIG_M5307
	printk(KERN_INFO "Modified for M5307 by Dave Miller, dmiller@intellistor.com\n");
#endif
#ifdef CONFIG_ELITE
	printk(KERN_INFO "Modified for M5206eLITE by Rob Scott, rscott@mtrob.fdns.net\n");
#endif
#ifdef CONFIG_TELOS
	printk(KERN_INFO "Modified for Omnia ToolVox by James D. Schettine, james@telos-systems.com\n");
#endif
#endif
	printk(KERN_INFO "Flat model support (C) 1998,1999 Kenneth Albanowski, D. Jeff Dionne\n");

#if defined( CONFIG_PILOT ) && defined( CONFIG_M68328 )
	printk(KERN_INFO "TRG SuperPilot FLASH card support <info@trgnet.com>\n");
#endif

#if defined( CONFIG_PILOT ) && defined( CONFIG_M68EZ328 )
	printk(KERN_INFO "PalmV support by Lineo Inc. <jeff@uclinux.com>\n");
#endif

#ifdef CONFIG_M68EZ328ADS
	printk(KERN_INFO "M68EZ328ADS board support (C) 1999 Vladimir Gurevich <vgurevic@cisco.com>\n");
#endif

#ifdef CONFIG_ALMA_ANS
	printk(KERN_INFO "Alma Electronics board support (C) 1999 Vladimir Gurevich <vgurevic@cisco.com>\n");
#endif
#if defined (CONFIG_M68360)
	printk(KERN_INFO "QUICC port done by SED Systems <hamilton@sedsystems.ca>,\n");
	printk(KERN_INFO "based on 2.0.38 port by Lineo Inc. <mleslie@lineo.com>.\n");
#endif
#ifdef CONFIG_DRAGEN2
	printk(KERN_INFO "DragonEngine II board support by Georges Menie\n");
#endif
#ifdef CONFIG_M5235EVB
	printk(KERN_INFO "Motorola M5235EVB support (C)2005 Syn-tech Systems, Inc. (Jate Sujjavanich)");
#endif

#ifdef DEBUG
	printk(KERN_DEBUG "KERNEL -> TEXT=0x%06x-0x%06x DATA=0x%06x-0x%06x "
		"BSS=0x%06x-0x%06x\n", (int) &_stext, (int) &_etext,
		(int) &_sdata, (int) &_edata,
		(int) &_sbss, (int) &_ebss);
	printk(KERN_DEBUG "KERNEL -> ROMFS=0x%06x-0x%06x MEM=0x%06x-0x%06x "
		"STACK=0x%06x-0x%06x\n",
#ifdef CAT_ROMARRAY
		(int) romarray, ((int) romarray) + romarray[2],
#else
		(int) &_ebss, (int) memory_start,
#endif
		(int) memory_start, (int) memory_end,
		(int) memory_end, (int) _ramend);
#endif

	/* Keep a copy of command line */
	*cmdline_p = &command_line[0];
	memcpy(saved_command_line, command_line, COMMAND_LINE_SIZE);
	saved_command_line[COMMAND_LINE_SIZE-1] = 0;

#ifdef DEBUG
	if (strlen(*cmdline_p))
		printk(KERN_DEBUG "Command line: '%s'\n", *cmdline_p);
#endif

#if defined(CONFIG_FRAMEBUFFER_CONSOLE) && defined(CONFIG_DUMMY_CONSOLE)
	conswitchp = &dummy_con;
#endif

	/*
	 * Give all the memory to the bootmap allocator, tell it to put the
	 * boot mem_map at the start of memory.
	 */
	bootmap_size = init_bootmem_node(
			NODE_DATA(0),
			memory_start >> PAGE_SHIFT, /* map goes here */
			PAGE_OFFSET >> PAGE_SHIFT,	/* 0 on coldfire */
			memory_end >> PAGE_SHIFT);
	/*
	 * Free the usable memory, we have to make sure we do not free
	 * the bootmem bitmap so we then reserve it after freeing it :-)
	 */
	free_bootmem(memory_start, memory_end - memory_start);
	reserve_bootmem(memory_start, bootmap_size);

	/*
	 * Get kmalloc into gear.
	 */
	paging_init();
}

/*
 *	Get CPU information for use by the procfs.
 */

static int show_cpuinfo(struct seq_file *m, void *v)
{
    char *cpu, *mmu, *fpu;
    u_long clockfreq;

    cpu = CPU;
    mmu = "none";
    fpu = "none";

#ifdef CONFIG_COLDFIRE
    clockfreq = (loops_per_jiffy*HZ)*3;
#else
    clockfreq = (loops_per_jiffy*HZ)*16;
#endif

    seq_printf(m, "CPU:\t\t%s\n"
		   "MMU:\t\t%s\n"
		   "FPU:\t\t%s\n"
		   "Clocking:\t%lu.%1luMHz\n"
		   "BogoMips:\t%lu.%02lu\n"
		   "Calibration:\t%lu loops\n",
		   cpu, mmu, fpu,
		   clockfreq/1000000,(clockfreq/100000)%10,
		   (loops_per_jiffy*HZ)/500000,((loops_per_jiffy*HZ)/5000)%100,
		   (loops_per_jiffy*HZ));

	return 0;
}

static void *c_start(struct seq_file *m, loff_t *pos)
{
	return *pos < NR_CPUS ? ((void *) 0x12345678) : NULL;
}

static void *c_next(struct seq_file *m, void *v, loff_t *pos)
{
	++*pos;
	return c_start(m, pos);
}

static void c_stop(struct seq_file *m, void *v)
{
}

struct seq_operations cpuinfo_op = {
	.start	= c_start,
	.next	= c_next,
	.stop	= c_stop,
	.show	= show_cpuinfo,
};

void arch_gettod(int *year, int *mon, int *day, int *hour,
		 int *min, int *sec)
{
	if (mach_gettod)
		mach_gettod(year, mon, day, hour, min, sec);
	else
		*year = *mon = *day = *hour = *min = *sec = 0;
}