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,