2 * linux/arch/m68knommu/kernel/setup.c
4 * Copyright (C) 1999-2007 Greg Ungerer (gerg@snapgear.com)
5 * Copyright (C) 1998,1999 D. Jeff Dionne <jeff@uClinux.org>
6 * Copyleft ()) 2000 James D. Schettine {james@telos-systems.com}
7 * Copyright (C) 1998 Kenneth Albanowski <kjahds@kjahds.com>
8 * Copyright (C) 1995 Hamish Macdonald
9 * Copyright (C) 2000 Lineo Inc. (www.lineo.com)
10 * Copyright (C) 2001 Lineo, Inc. <www.lineo.com>
12 * 68VZ328 Fixes/support Evan Stawnyczy <e@lineo.ca>
16 * This file handles the architecture-dependent parts of system setup
19 #include <linux/kernel.h>
20 #include <linux/sched.h>
21 #include <linux/delay.h>
22 #include <linux/interrupt.h>
24 #include <linux/module.h>
25 #include <linux/console.h>
26 #include <linux/errno.h>
27 #include <linux/string.h>
28 #include <linux/bootmem.h>
29 #include <linux/seq_file.h>
30 #include <linux/init.h>
32 #include <asm/setup.h>
34 #include <asm/machdep.h>
35 #include <asm/pgtable.h>
37 unsigned long memory_start
;
38 unsigned long memory_end
;
40 EXPORT_SYMBOL(memory_start
);
41 EXPORT_SYMBOL(memory_end
);
43 char __initdata command_line
[COMMAND_LINE_SIZE
];
45 /* machine dependent timer functions */
46 void (*mach_sched_init
)(irq_handler_t handler
);
47 void (*mach_tick
)(void);
48 void (*mach_gettod
)(int*, int*, int*, int*, int*, int*);
49 int (*mach_set_clock_mmss
)(unsigned long);
50 unsigned long (*mach_gettimeoffset
)(void);
52 /* machine dependent reboot functions */
53 void (*mach_reset
)(void);
54 void (*mach_halt
)(void);
55 void (*mach_power_off
)(void);
64 #ifdef CONFIG_M68EZ328
65 #define CPU "MC68EZ328"
67 #ifdef CONFIG_M68VZ328
68 #define CPU "MC68VZ328"
76 #if defined(CONFIG_M5206)
77 #define CPU "COLDFIRE(m5206)"
79 #if defined(CONFIG_M5206e)
80 #define CPU "COLDFIRE(m5206e)"
82 #if defined(CONFIG_M520x)
83 #define CPU "COLDFIRE(m520x)"
85 #if defined(CONFIG_M523x)
86 #define CPU "COLDFIRE(m523x)"
88 #if defined(CONFIG_M5249)
89 #define CPU "COLDFIRE(m5249)"
91 #if defined(CONFIG_M5271)
92 #define CPU "COLDFIRE(m5270/5271)"
94 #if defined(CONFIG_M5272)
95 #define CPU "COLDFIRE(m5272)"
97 #if defined(CONFIG_M5275)
98 #define CPU "COLDFIRE(m5274/5275)"
100 #if defined(CONFIG_M528x)
101 #define CPU "COLDFIRE(m5280/5282)"
103 #if defined(CONFIG_M5307)
104 #define CPU "COLDFIRE(m5307)"
106 #if defined(CONFIG_M532x)
107 #define CPU "COLDFIRE(m532x)"
109 #if defined(CONFIG_M5407)
110 #define CPU "COLDFIRE(m5407)"
113 #define CPU "UNKNOWN"
116 extern int _stext
, _etext
, _sdata
, _edata
, _sbss
, _ebss
, _end
;
117 extern int _ramstart
, _ramend
;
119 void setup_arch(char **cmdline_p
)
123 memory_start
= PAGE_ALIGN(_ramstart
);
124 memory_end
= _ramend
;
126 init_mm
.start_code
= (unsigned long) &_stext
;
127 init_mm
.end_code
= (unsigned long) &_etext
;
128 init_mm
.end_data
= (unsigned long) &_edata
;
129 init_mm
.brk
= (unsigned long) 0;
131 config_BSP(&command_line
[0], sizeof(command_line
));
133 #if defined(CONFIG_BOOTPARAM)
134 strncpy(&command_line
[0], CONFIG_BOOTPARAM_STRING
, sizeof(command_line
));
135 command_line
[sizeof(command_line
) - 1] = 0;
138 printk(KERN_INFO
"\x0F\r\n\nuClinux/" CPU
"\n");
141 printk(KERN_INFO
"uCdimm by Lineo, Inc. <www.lineo.com>\n");
143 #ifdef CONFIG_M68VZ328
144 printk(KERN_INFO
"M68VZ328 support by Evan Stawnyczy <e@lineo.ca>\n");
146 #ifdef CONFIG_COLDFIRE
147 printk(KERN_INFO
"COLDFIRE port done by Greg Ungerer, gerg@snapgear.com\n");
149 printk(KERN_INFO
"Modified for M5307 by Dave Miller, dmiller@intellistor.com\n");
152 printk(KERN_INFO
"Modified for M5206eLITE by Rob Scott, rscott@mtrob.fdns.net\n");
155 printk(KERN_INFO
"Flat model support (C) 1998,1999 Kenneth Albanowski, D. Jeff Dionne\n");
157 #if defined( CONFIG_PILOT ) && defined( CONFIG_M68328 )
158 printk(KERN_INFO
"TRG SuperPilot FLASH card support <info@trgnet.com>\n");
160 #if defined( CONFIG_PILOT ) && defined( CONFIG_M68EZ328 )
161 printk(KERN_INFO
"PalmV support by Lineo Inc. <jeff@uclinux.com>\n");
163 #if defined (CONFIG_M68360)
164 printk(KERN_INFO
"QUICC port done by SED Systems <hamilton@sedsystems.ca>,\n");
165 printk(KERN_INFO
"based on 2.0.38 port by Lineo Inc. <mleslie@lineo.com>.\n");
167 #ifdef CONFIG_DRAGEN2
168 printk(KERN_INFO
"DragonEngine II board support by Georges Menie\n");
170 #ifdef CONFIG_M5235EVB
171 printk(KERN_INFO
"Motorola M5235EVB support (C)2005 Syn-tech Systems, Inc. (Jate Sujjavanich)");
175 printk(KERN_DEBUG
"KERNEL -> TEXT=0x%06x-0x%06x DATA=0x%06x-0x%06x "
176 "BSS=0x%06x-0x%06x\n", (int) &_stext
, (int) &_etext
,
177 (int) &_sdata
, (int) &_edata
,
178 (int) &_sbss
, (int) &_ebss
);
179 printk(KERN_DEBUG
"MEMORY -> ROMFS=0x%06x-0x%06x MEM=0x%06x-0x%06x\n ",
180 (int) &_ebss
, (int) memory_start
,
181 (int) memory_start
, (int) memory_end
);
184 /* Keep a copy of command line */
185 *cmdline_p
= &command_line
[0];
186 memcpy(boot_command_line
, command_line
, COMMAND_LINE_SIZE
);
187 boot_command_line
[COMMAND_LINE_SIZE
-1] = 0;
190 if (strlen(*cmdline_p
))
191 printk(KERN_DEBUG
"Command line: '%s'\n", *cmdline_p
);
194 #if defined(CONFIG_FRAMEBUFFER_CONSOLE) && defined(CONFIG_DUMMY_CONSOLE)
195 conswitchp
= &dummy_con
;
199 * Give all the memory to the bootmap allocator, tell it to put the
200 * boot mem_map at the start of memory.
202 bootmap_size
= init_bootmem_node(
204 memory_start
>> PAGE_SHIFT
, /* map goes here */
205 PAGE_OFFSET
>> PAGE_SHIFT
, /* 0 on coldfire */
206 memory_end
>> PAGE_SHIFT
);
208 * Free the usable memory, we have to make sure we do not free
209 * the bootmem bitmap so we then reserve it after freeing it :-)
211 free_bootmem(memory_start
, memory_end
- memory_start
);
212 reserve_bootmem(memory_start
, bootmap_size
);
215 * Get kmalloc into gear.
221 * Get CPU information for use by the procfs.
223 static int show_cpuinfo(struct seq_file
*m
, void *v
)
225 char *cpu
, *mmu
, *fpu
;
232 #ifdef CONFIG_COLDFIRE
233 clockfreq
= (loops_per_jiffy
* HZ
) * 3;
235 clockfreq
= (loops_per_jiffy
* HZ
) * 16;
238 seq_printf(m
, "CPU:\t\t%s\n"
241 "Clocking:\t%lu.%1luMHz\n"
242 "BogoMips:\t%lu.%02lu\n"
243 "Calibration:\t%lu loops\n",
246 (clockfreq
/ 100000) % 10,
247 (loops_per_jiffy
* HZ
) / 500000,
248 ((loops_per_jiffy
* HZ
) / 5000) % 100,
249 (loops_per_jiffy
* HZ
));
254 static void *c_start(struct seq_file
*m
, loff_t
*pos
)
256 return *pos
< NR_CPUS
? ((void *) 0x12345678) : NULL
;
259 static void *c_next(struct seq_file
*m
, void *v
, loff_t
*pos
)
262 return c_start(m
, pos
);
265 static void c_stop(struct seq_file
*m
, void *v
)
269 struct seq_operations cpuinfo_op
= {
273 .show
= show_cpuinfo
,
276 void arch_gettod(int *year
, int *mon
, int *day
, int *hour
,
280 mach_gettod(year
, mon
, day
, hour
, min
, sec
);
282 *year
= *mon
= *day
= *hour
= *min
= *sec
= 0;