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1da177e4 LT |
1 | /* |
2 | * linux/arch/m68knommu/kernel/setup.c | |
3 | * | |
2f75d109 GU |
4 | * Copyright (C) 1999-2007 Greg Ungerer (gerg@snapgear.com) |
5 | * Copyright (C) 1998,1999 D. Jeff Dionne <jeff@uClinux.org> | |
1da177e4 LT |
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 | |
e6070a17 | 9 | * Copyright (C) 2000 Lineo Inc. (www.lineo.com) |
1da177e4 LT |
10 | * Copyright (C) 2001 Lineo, Inc. <www.lineo.com> |
11 | * | |
12 | * 68VZ328 Fixes/support Evan Stawnyczy <e@lineo.ca> | |
13 | */ | |
14 | ||
15 | /* | |
16 | * This file handles the architecture-dependent parts of system setup | |
17 | */ | |
18 | ||
1da177e4 LT |
19 | #include <linux/kernel.h> |
20 | #include <linux/sched.h> | |
21 | #include <linux/delay.h> | |
22 | #include <linux/interrupt.h> | |
1da177e4 | 23 | #include <linux/fb.h> |
e6070a17 | 24 | #include <linux/module.h> |
1da177e4 | 25 | #include <linux/console.h> |
1da177e4 LT |
26 | #include <linux/errno.h> |
27 | #include <linux/string.h> | |
1da177e4 LT |
28 | #include <linux/bootmem.h> |
29 | #include <linux/seq_file.h> | |
1da177e4 LT |
30 | #include <linux/init.h> |
31 | ||
32 | #include <asm/setup.h> | |
33 | #include <asm/irq.h> | |
34 | #include <asm/machdep.h> | |
1da177e4 | 35 | #include <asm/pgtable.h> |
1da177e4 | 36 | |
1da177e4 LT |
37 | unsigned long memory_start; |
38 | unsigned long memory_end; | |
39 | ||
e6070a17 GU |
40 | EXPORT_SYMBOL(memory_start); |
41 | EXPORT_SYMBOL(memory_end); | |
42 | ||
f2a09e19 | 43 | char __initdata command_line[COMMAND_LINE_SIZE]; |
1da177e4 | 44 | |
1da177e4 | 45 | /* machine dependent timer functions */ |
2f75d109 GU |
46 | void (*mach_gettod)(int*, int*, int*, int*, int*, int*); |
47 | int (*mach_set_clock_mmss)(unsigned long); | |
2f75d109 GU |
48 | |
49 | /* machine dependent reboot functions */ | |
50 | void (*mach_reset)(void); | |
51 | void (*mach_halt)(void); | |
52 | void (*mach_power_off)(void); | |
1da177e4 LT |
53 | |
54 | ||
55 | #ifdef CONFIG_M68000 | |
56 | #define CPU "MC68000" | |
57 | #endif | |
58 | #ifdef CONFIG_M68328 | |
59 | #define CPU "MC68328" | |
60 | #endif | |
61 | #ifdef CONFIG_M68EZ328 | |
62 | #define CPU "MC68EZ328" | |
63 | #endif | |
64 | #ifdef CONFIG_M68VZ328 | |
65 | #define CPU "MC68VZ328" | |
66 | #endif | |
1da177e4 LT |
67 | #ifdef CONFIG_M68360 |
68 | #define CPU "MC68360" | |
69 | #endif | |
70 | #if defined(CONFIG_M5206) | |
71 | #define CPU "COLDFIRE(m5206)" | |
72 | #endif | |
73 | #if defined(CONFIG_M5206e) | |
74 | #define CPU "COLDFIRE(m5206e)" | |
75 | #endif | |
54b03d13 GU |
76 | #if defined(CONFIG_M520x) |
77 | #define CPU "COLDFIRE(m520x)" | |
78 | #endif | |
e6070a17 GU |
79 | #if defined(CONFIG_M523x) |
80 | #define CPU "COLDFIRE(m523x)" | |
81 | #endif | |
1da177e4 LT |
82 | #if defined(CONFIG_M5249) |
83 | #define CPU "COLDFIRE(m5249)" | |
84 | #endif | |
e6070a17 GU |
85 | #if defined(CONFIG_M5271) |
86 | #define CPU "COLDFIRE(m5270/5271)" | |
1da177e4 LT |
87 | #endif |
88 | #if defined(CONFIG_M5272) | |
89 | #define CPU "COLDFIRE(m5272)" | |
90 | #endif | |
e6070a17 GU |
91 | #if defined(CONFIG_M5275) |
92 | #define CPU "COLDFIRE(m5274/5275)" | |
93 | #endif | |
1da177e4 LT |
94 | #if defined(CONFIG_M528x) |
95 | #define CPU "COLDFIRE(m5280/5282)" | |
96 | #endif | |
97 | #if defined(CONFIG_M5307) | |
98 | #define CPU "COLDFIRE(m5307)" | |
99 | #endif | |
7877d01e GU |
100 | #if defined(CONFIG_M532x) |
101 | #define CPU "COLDFIRE(m532x)" | |
102 | #endif | |
1da177e4 LT |
103 | #if defined(CONFIG_M5407) |
104 | #define CPU "COLDFIRE(m5407)" | |
105 | #endif | |
106 | #ifndef CPU | |
54b03d13 | 107 | #define CPU "UNKNOWN" |
1da177e4 LT |
108 | #endif |
109 | ||
1da177e4 LT |
110 | extern int _stext, _etext, _sdata, _edata, _sbss, _ebss, _end; |
111 | extern int _ramstart, _ramend; | |
112 | ||
1d2842e0 | 113 | void __init setup_arch(char **cmdline_p) |
1da177e4 LT |
114 | { |
115 | int bootmap_size; | |
116 | ||
1da177e4 | 117 | memory_start = PAGE_ALIGN(_ramstart); |
2f75d109 | 118 | memory_end = _ramend; |
1da177e4 LT |
119 | |
120 | init_mm.start_code = (unsigned long) &_stext; | |
121 | init_mm.end_code = (unsigned long) &_etext; | |
122 | init_mm.end_data = (unsigned long) &_edata; | |
e6070a17 | 123 | init_mm.brk = (unsigned long) 0; |
1da177e4 LT |
124 | |
125 | config_BSP(&command_line[0], sizeof(command_line)); | |
126 | ||
bc72450a GU |
127 | #if defined(CONFIG_BOOTPARAM) |
128 | strncpy(&command_line[0], CONFIG_BOOTPARAM_STRING, sizeof(command_line)); | |
129 | command_line[sizeof(command_line) - 1] = 0; | |
130 | #endif | |
131 | ||
1da177e4 LT |
132 | printk(KERN_INFO "\x0F\r\n\nuClinux/" CPU "\n"); |
133 | ||
134 | #ifdef CONFIG_UCDIMM | |
135 | printk(KERN_INFO "uCdimm by Lineo, Inc. <www.lineo.com>\n"); | |
136 | #endif | |
137 | #ifdef CONFIG_M68VZ328 | |
138 | printk(KERN_INFO "M68VZ328 support by Evan Stawnyczy <e@lineo.ca>\n"); | |
139 | #endif | |
140 | #ifdef CONFIG_COLDFIRE | |
141 | printk(KERN_INFO "COLDFIRE port done by Greg Ungerer, gerg@snapgear.com\n"); | |
142 | #ifdef CONFIG_M5307 | |
143 | printk(KERN_INFO "Modified for M5307 by Dave Miller, dmiller@intellistor.com\n"); | |
144 | #endif | |
145 | #ifdef CONFIG_ELITE | |
146 | printk(KERN_INFO "Modified for M5206eLITE by Rob Scott, rscott@mtrob.fdns.net\n"); | |
e6070a17 | 147 | #endif |
1da177e4 LT |
148 | #endif |
149 | printk(KERN_INFO "Flat model support (C) 1998,1999 Kenneth Albanowski, D. Jeff Dionne\n"); | |
150 | ||
151 | #if defined( CONFIG_PILOT ) && defined( CONFIG_M68328 ) | |
152 | printk(KERN_INFO "TRG SuperPilot FLASH card support <info@trgnet.com>\n"); | |
153 | #endif | |
1da177e4 LT |
154 | #if defined( CONFIG_PILOT ) && defined( CONFIG_M68EZ328 ) |
155 | printk(KERN_INFO "PalmV support by Lineo Inc. <jeff@uclinux.com>\n"); | |
156 | #endif | |
1da177e4 LT |
157 | #if defined (CONFIG_M68360) |
158 | printk(KERN_INFO "QUICC port done by SED Systems <hamilton@sedsystems.ca>,\n"); | |
159 | printk(KERN_INFO "based on 2.0.38 port by Lineo Inc. <mleslie@lineo.com>.\n"); | |
160 | #endif | |
161 | #ifdef CONFIG_DRAGEN2 | |
162 | printk(KERN_INFO "DragonEngine II board support by Georges Menie\n"); | |
163 | #endif | |
e6070a17 GU |
164 | #ifdef CONFIG_M5235EVB |
165 | printk(KERN_INFO "Motorola M5235EVB support (C)2005 Syn-tech Systems, Inc. (Jate Sujjavanich)"); | |
166 | #endif | |
1da177e4 LT |
167 | |
168 | #ifdef DEBUG | |
169 | printk(KERN_DEBUG "KERNEL -> TEXT=0x%06x-0x%06x DATA=0x%06x-0x%06x " | |
170 | "BSS=0x%06x-0x%06x\n", (int) &_stext, (int) &_etext, | |
171 | (int) &_sdata, (int) &_edata, | |
172 | (int) &_sbss, (int) &_ebss); | |
775ecf87 | 173 | printk(KERN_DEBUG "MEMORY -> ROMFS=0x%06x-0x%06x MEM=0x%06x-0x%06x\n ", |
1da177e4 | 174 | (int) &_ebss, (int) memory_start, |
775ecf87 | 175 | (int) memory_start, (int) memory_end); |
1da177e4 LT |
176 | #endif |
177 | ||
178 | /* Keep a copy of command line */ | |
179 | *cmdline_p = &command_line[0]; | |
f2a09e19 ABL |
180 | memcpy(boot_command_line, command_line, COMMAND_LINE_SIZE); |
181 | boot_command_line[COMMAND_LINE_SIZE-1] = 0; | |
1da177e4 LT |
182 | |
183 | #ifdef DEBUG | |
e6070a17 | 184 | if (strlen(*cmdline_p)) |
1da177e4 LT |
185 | printk(KERN_DEBUG "Command line: '%s'\n", *cmdline_p); |
186 | #endif | |
187 | ||
188 | #if defined(CONFIG_FRAMEBUFFER_CONSOLE) && defined(CONFIG_DUMMY_CONSOLE) | |
189 | conswitchp = &dummy_con; | |
190 | #endif | |
191 | ||
192 | /* | |
193 | * Give all the memory to the bootmap allocator, tell it to put the | |
194 | * boot mem_map at the start of memory. | |
195 | */ | |
196 | bootmap_size = init_bootmem_node( | |
197 | NODE_DATA(0), | |
198 | memory_start >> PAGE_SHIFT, /* map goes here */ | |
199 | PAGE_OFFSET >> PAGE_SHIFT, /* 0 on coldfire */ | |
200 | memory_end >> PAGE_SHIFT); | |
201 | /* | |
202 | * Free the usable memory, we have to make sure we do not free | |
203 | * the bootmem bitmap so we then reserve it after freeing it :-) | |
204 | */ | |
205 | free_bootmem(memory_start, memory_end - memory_start); | |
206 | reserve_bootmem(memory_start, bootmap_size); | |
207 | ||
208 | /* | |
209 | * Get kmalloc into gear. | |
210 | */ | |
211 | paging_init(); | |
212 | } | |
213 | ||
1da177e4 LT |
214 | /* |
215 | * Get CPU information for use by the procfs. | |
216 | */ | |
1da177e4 LT |
217 | static int show_cpuinfo(struct seq_file *m, void *v) |
218 | { | |
22982a56 GU |
219 | char *cpu, *mmu, *fpu; |
220 | u_long clockfreq; | |
1da177e4 | 221 | |
22982a56 GU |
222 | cpu = CPU; |
223 | mmu = "none"; | |
224 | fpu = "none"; | |
1da177e4 LT |
225 | |
226 | #ifdef CONFIG_COLDFIRE | |
22982a56 | 227 | clockfreq = (loops_per_jiffy * HZ) * 3; |
1da177e4 | 228 | #else |
22982a56 GU |
229 | clockfreq = (loops_per_jiffy * HZ) * 16; |
230 | #endif | |
231 | ||
232 | seq_printf(m, "CPU:\t\t%s\n" | |
233 | "MMU:\t\t%s\n" | |
234 | "FPU:\t\t%s\n" | |
235 | "Clocking:\t%lu.%1luMHz\n" | |
236 | "BogoMips:\t%lu.%02lu\n" | |
237 | "Calibration:\t%lu loops\n", | |
238 | cpu, mmu, fpu, | |
239 | clockfreq / 1000000, | |
240 | (clockfreq / 100000) % 10, | |
241 | (loops_per_jiffy * HZ) / 500000, | |
242 | ((loops_per_jiffy * HZ) / 5000) % 100, | |
243 | (loops_per_jiffy * HZ)); | |
1da177e4 LT |
244 | |
245 | return 0; | |
246 | } | |
247 | ||
248 | static void *c_start(struct seq_file *m, loff_t *pos) | |
249 | { | |
250 | return *pos < NR_CPUS ? ((void *) 0x12345678) : NULL; | |
251 | } | |
252 | ||
253 | static void *c_next(struct seq_file *m, void *v, loff_t *pos) | |
254 | { | |
255 | ++*pos; | |
256 | return c_start(m, pos); | |
257 | } | |
258 | ||
259 | static void c_stop(struct seq_file *m, void *v) | |
260 | { | |
261 | } | |
262 | ||
263 | struct seq_operations cpuinfo_op = { | |
264 | .start = c_start, | |
265 | .next = c_next, | |
266 | .stop = c_stop, | |
267 | .show = show_cpuinfo, | |
268 | }; | |
269 |