projects / deliverable / linux.git / blame
? search:
summary | shortlog | log | commit | commitdiff | tree
blob | blame (incremental) | history | HEAD
Merge branch 'acpi-lpss'
[deliverable/linux.git] / arch / m68k / kernel / setup_no.c
CommitLineData
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>
27ac792c 25#include <linux/mm.h>
1da177e4 26#include <linux/console.h>
1da177e4
LT		 27#include <linux/errno.h>
28#include <linux/string.h>
1da177e4
LT		 29#include <linux/bootmem.h>
30#include <linux/seq_file.h>
1da177e4 31#include <linux/init.h>
588baeac
LS		 32#include <linux/initrd.h>
33#include <linux/root_dev.h>
95177461 34#include <linux/rtc.h>
1da177e4
LT		 35
36#include <asm/setup.h>
37#include <asm/irq.h>
38#include <asm/machdep.h>
1da177e4 39#include <asm/pgtable.h>
c06e9bb4 40#include <asm/sections.h>
1da177e4 41
1da177e4
LT		 42unsigned long memory_start;
43unsigned long memory_end;
44
e6070a17
GU		 45EXPORT_SYMBOL(memory_start);
46EXPORT_SYMBOL(memory_end);
47
f2a09e19 48char __initdata command_line[COMMAND_LINE_SIZE];
1da177e4 49
1da177e4 50/* machine dependent timer functions */
35aefb26 51void (*mach_sched_init)(irq_handler_t handler) __initdata = NULL;
2f75d109 52int (*mach_set_clock_mmss)(unsigned long);
95177461 53int (*mach_hwclk) (int, struct rtc_time*);
2f75d109
GU		 54
55/* machine dependent reboot functions */
56void (*mach_reset)(void);
57void (*mach_halt)(void);
58void (*mach_power_off)(void);
1da177e4 59
1a62fe8d
LA		 60#ifdef CONFIG_M68000
61#define CPU_NAME "MC68000"
62#endif
1da177e4 63#ifdef CONFIG_M68328
7fc82b65 64#define CPU_NAME "MC68328"
1da177e4
LT		 65#endif
66#ifdef CONFIG_M68EZ328
7fc82b65 67#define CPU_NAME "MC68EZ328"
1da177e4
LT		 68#endif
69#ifdef CONFIG_M68VZ328
7fc82b65 70#define CPU_NAME "MC68VZ328"
1da177e4 71#endif
1da177e4 72#ifdef CONFIG_M68360
7fc82b65 73#define CPU_NAME "MC68360"
1da177e4 74#endif
7fc82b65
GU		 75#ifndef CPU_NAME
76#define CPU_NAME "UNKNOWN"
1da177e4
LT		 77#endif
78
733f31b7
GU		 79/*
80 * Different cores have different instruction execution timings.
81 * The old/traditional 68000 cores are basically all the same, at 16.
82 * The ColdFire cores vary a little, their values are defined in their
83 * headers. We default to the standard 68000 value here.
84 */
85#ifndef CPU_INSTR_PER_JIFFY
86#define CPU_INSTR_PER_JIFFY 16
87#endif
88
588baeac
LS		 89#if defined(CONFIG_UBOOT)
90/*
91 * parse_uboot_commandline
92 *
93 * Copies u-boot commandline arguments and store them in the proper linux
94 * variables.
95 *
96 * Assumes:
97 * _init_sp global contains the address in the stack pointer when the
98 * kernel starts (see head.S::_start)
99 *
100 * U-Boot calling convention:
101 * (*kernel) (kbd, initrd_start, initrd_end, cmd_start, cmd_end);
102 *
103 * _init_sp can be parsed as such
104 *
105 * _init_sp+00 = u-boot cmd after jsr into kernel (skip)
106 * _init_sp+04 = &kernel board_info (residual data)
107 * _init_sp+08 = &initrd_start
108 * _init_sp+12 = &initrd_end
109 * _init_sp+16 = &cmd_start
110 * _init_sp+20 = &cmd_end
111 *
112 * This also assumes that the memory locations pointed to are still
113 * unmodified. U-boot places them near the end of external SDRAM.
114 *
115 * Argument(s):
116 * commandp = the linux commandline arg container to fill.
117 * size = the sizeof commandp.
118 *
119 * Returns:
120 */
121void parse_uboot_commandline(char *commandp, int size)
122{
123 extern unsigned long _init_sp;
124 unsigned long *sp;
125 unsigned long uboot_kbd;
126 unsigned long uboot_initrd_start, uboot_initrd_end;
127 unsigned long uboot_cmd_start, uboot_cmd_end;
128
129
130 sp = (unsigned long *)_init_sp;
131 uboot_kbd = sp[1];
132 uboot_initrd_start = sp[2];
133 uboot_initrd_end = sp[3];
134 uboot_cmd_start = sp[4];
135 uboot_cmd_end = sp[5];
136
137 if (uboot_cmd_start && uboot_cmd_end)
138 strncpy(commandp, (const char *)uboot_cmd_start, size);
139#if defined(CONFIG_BLK_DEV_INITRD)
140 if (uboot_initrd_start && uboot_initrd_end &&
141 (uboot_initrd_end > uboot_initrd_start)) {
142 initrd_start = uboot_initrd_start;
143 initrd_end = uboot_initrd_end;
144 ROOT_DEV = Root_RAM0;
145 printk(KERN_INFO "initrd at 0x%lx:0x%lx\n",
146 initrd_start, initrd_end);
147 }
148#endif /* if defined(CONFIG_BLK_DEV_INITRD) */
149}
150#endif /* #if defined(CONFIG_UBOOT) */
151
1d2842e0 152void __init setup_arch(char **cmdline_p)
1da177e4
LT		 153{
154 int bootmap_size;
155
1da177e4 156 memory_start = PAGE_ALIGN(_ramstart);
2f75d109 157 memory_end = _ramend;
1da177e4
LT		 158
159 init_mm.start_code = (unsigned long) &_stext;
160 init_mm.end_code = (unsigned long) &_etext;
161 init_mm.end_data = (unsigned long) &_edata;
e6070a17 162 init_mm.brk = (unsigned long) 0;
1da177e4
LT		 163
164 config_BSP(&command_line[0], sizeof(command_line));
165
bc72450a
GU		 166#if defined(CONFIG_BOOTPARAM)
167 strncpy(&command_line[0], CONFIG_BOOTPARAM_STRING, sizeof(command_line));
168 command_line[sizeof(command_line) - 1] = 0;
588baeac
LS		 169#endif /* CONFIG_BOOTPARAM */
170
171#if defined(CONFIG_UBOOT)
172 /* CONFIG_UBOOT and CONFIG_BOOTPARAM defined, concatenate cmdline */
173 #if defined(CONFIG_BOOTPARAM)
174 /* Add the whitespace separator */
175 command_line[strlen(CONFIG_BOOTPARAM_STRING)] = ' ';
176 /* Parse uboot command line into the rest of the buffer */
177 parse_uboot_commandline(
178 &command_line[(strlen(CONFIG_BOOTPARAM_STRING)+1)],
179 (sizeof(command_line) -
180 (strlen(CONFIG_BOOTPARAM_STRING)+1)));
181 /* Only CONFIG_UBOOT defined, create cmdline */
182 #else
183 parse_uboot_commandline(&command_line[0], sizeof(command_line));
184 #endif /* CONFIG_BOOTPARAM */
185 command_line[sizeof(command_line) - 1] = 0;
186#endif /* CONFIG_UBOOT */
bc72450a 187
7fc82b65 188 printk(KERN_INFO "\x0F\r\n\nuClinux/" CPU_NAME "\n");
1da177e4
LT		 189
190#ifdef CONFIG_UCDIMM
191 printk(KERN_INFO "uCdimm by Lineo, Inc. <www.lineo.com>\n");
192#endif
193#ifdef CONFIG_M68VZ328
194 printk(KERN_INFO "M68VZ328 support by Evan Stawnyczy <e@lineo.ca>\n");
195#endif
196#ifdef CONFIG_COLDFIRE
197 printk(KERN_INFO "COLDFIRE port done by Greg Ungerer, gerg@snapgear.com\n");
198#ifdef CONFIG_M5307
199 printk(KERN_INFO "Modified for M5307 by Dave Miller, dmiller@intellistor.com\n");
200#endif
201#ifdef CONFIG_ELITE
202 printk(KERN_INFO "Modified for M5206eLITE by Rob Scott, rscott@mtrob.fdns.net\n");
e6070a17 203#endif
1da177e4
LT		 204#endif
205 printk(KERN_INFO "Flat model support (C) 1998,1999 Kenneth Albanowski, D. Jeff Dionne\n");
206
207#if defined( CONFIG_PILOT ) && defined( CONFIG_M68328 )
208 printk(KERN_INFO "TRG SuperPilot FLASH card support <info@trgnet.com>\n");
209#endif
1da177e4
LT		 210#if defined( CONFIG_PILOT ) && defined( CONFIG_M68EZ328 )
211 printk(KERN_INFO "PalmV support by Lineo Inc. <jeff@uclinux.com>\n");
212#endif
1da177e4
LT		 213#if defined (CONFIG_M68360)
214 printk(KERN_INFO "QUICC port done by SED Systems <hamilton@sedsystems.ca>,\n");
215 printk(KERN_INFO "based on 2.0.38 port by Lineo Inc. <mleslie@lineo.com>.\n");
216#endif
217#ifdef CONFIG_DRAGEN2
218 printk(KERN_INFO "DragonEngine II board support by Georges Menie\n");
219#endif
e6070a17 220#ifdef CONFIG_M5235EVB
008150f5 221 printk(KERN_INFO "Motorola M5235EVB support (C)2005 Syn-tech Systems, Inc. (Jate Sujjavanich)\n");
e6070a17 222#endif
1da177e4 223
54503b1d 224 pr_debug("KERNEL -> TEXT=0x%p-0x%p DATA=0x%p-0x%p BSS=0x%p-0x%p\n",
dc061051 225 _stext, _etext, _sdata, _edata, __bss_start, __bss_stop);
54503b1d 226 pr_debug("MEMORY -> ROMFS=0x%p-0x%06lx MEM=0x%06lx-0x%06lx\n ",
dc061051 227 __bss_stop, memory_start, memory_start, memory_end);
1da177e4
LT		 228
229 /* Keep a copy of command line */
230 *cmdline_p = &command_line[0];
f2a09e19
ABL		 231 memcpy(boot_command_line, command_line, COMMAND_LINE_SIZE);
232 boot_command_line[COMMAND_LINE_SIZE-1] = 0;
1da177e4 233
1da177e4
LT		 234#if defined(CONFIG_FRAMEBUFFER_CONSOLE) && defined(CONFIG_DUMMY_CONSOLE)
235 conswitchp = &dummy_con;
236#endif
237
238 /*
239 * Give all the memory to the bootmap allocator, tell it to put the
240 * boot mem_map at the start of memory.
241 */
242 bootmap_size = init_bootmem_node(
243 NODE_DATA(0),
244 memory_start >> PAGE_SHIFT, /* map goes here */
245 PAGE_OFFSET >> PAGE_SHIFT, /* 0 on coldfire */
246 memory_end >> PAGE_SHIFT);
247 /*
248 * Free the usable memory, we have to make sure we do not free
249 * the bootmem bitmap so we then reserve it after freeing it :-)
250 */
251 free_bootmem(memory_start, memory_end - memory_start);
72a7fe39 252 reserve_bootmem(memory_start, bootmap_size, BOOTMEM_DEFAULT);
1da177e4 253
588baeac
LS		 254#if defined(CONFIG_UBOOT) && defined(CONFIG_BLK_DEV_INITRD)
255 if ((initrd_start > 0) && (initrd_start < initrd_end) &&
256 (initrd_end < memory_end))
257 reserve_bootmem(initrd_start, initrd_end - initrd_start,
258 BOOTMEM_DEFAULT);
259#endif /* if defined(CONFIG_BLK_DEV_INITRD) */
260
1da177e4
LT		 261 /*
262 * Get kmalloc into gear.
263 */
264 paging_init();
265}
266
1da177e4
LT		 267/*
268 * Get CPU information for use by the procfs.
269 */
1da177e4
LT		 270static int show_cpuinfo(struct seq_file *m, void *v)
271{
22982a56
GU		 272 char *cpu, *mmu, *fpu;
273 u_long clockfreq;
1da177e4 274
7fc82b65 275 cpu = CPU_NAME;
22982a56
GU		 276 mmu = "none";
277 fpu = "none";
733f31b7 278 clockfreq = (loops_per_jiffy * HZ) * CPU_INSTR_PER_JIFFY;
22982a56
GU		 279
280 seq_printf(m, "CPU:\t\t%s\n"
281 "MMU:\t\t%s\n"
282 "FPU:\t\t%s\n"
283 "Clocking:\t%lu.%1luMHz\n"
284 "BogoMips:\t%lu.%02lu\n"
285 "Calibration:\t%lu loops\n",
286 cpu, mmu, fpu,
287 clockfreq / 1000000,
288 (clockfreq / 100000) % 10,
289 (loops_per_jiffy * HZ) / 500000,
290 ((loops_per_jiffy * HZ) / 5000) % 100,
291 (loops_per_jiffy * HZ));
1da177e4
LT		 292
293 return 0;
294}
295
296static void *c_start(struct seq_file *m, loff_t *pos)
297{
298 return *pos < NR_CPUS ? ((void *) 0x12345678) : NULL;
299}
300
301static void *c_next(struct seq_file *m, void *v, loff_t *pos)
302{
303 ++*pos;
304 return c_start(m, pos);
305}
306
307static void c_stop(struct seq_file *m, void *v)
308{
309}
310
03a44825 311const struct seq_operations cpuinfo_op = {
1da177e4
LT		 312 .start = c_start,
313 .next = c_next,
314 .stop = c_stop,
315 .show = show_cpuinfo,
316};
317
Linux kernel - Deliverables
This page took 0.937902 seconds and 5 git commands to generate.