~ [ source navigation ] ~ [ diff markup ] ~ [ identifier search ] ~

TOMOYO Linux Cross Reference
Linux/arch/m68k/kernel/setup_no.c

Version: ~ [ linux-5.2-rc4 ] ~ [ linux-5.1.9 ] ~ [ linux-5.0.21 ] ~ [ linux-4.20.17 ] ~ [ linux-4.19.50 ] ~ [ linux-4.18.20 ] ~ [ linux-4.17.19 ] ~ [ linux-4.16.18 ] ~ [ linux-4.15.18 ] ~ [ linux-4.14.125 ] ~ [ linux-4.13.16 ] ~ [ linux-4.12.14 ] ~ [ linux-4.11.12 ] ~ [ linux-4.10.17 ] ~ [ linux-4.9.181 ] ~ [ linux-4.8.17 ] ~ [ linux-4.7.10 ] ~ [ linux-4.6.7 ] ~ [ linux-4.5.7 ] ~ [ linux-4.4.181 ] ~ [ linux-4.3.6 ] ~ [ linux-4.2.8 ] ~ [ linux-4.1.52 ] ~ [ linux-4.0.9 ] ~ [ linux-3.19.8 ] ~ [ linux-3.18.140 ] ~ [ linux-3.17.8 ] ~ [ linux-3.16.68 ] ~ [ linux-3.15.10 ] ~ [ linux-3.14.79 ] ~ [ linux-3.13.11 ] ~ [ linux-3.12.74 ] ~ [ linux-3.11.10 ] ~ [ linux-3.10.108 ] ~ [ linux-3.9.11 ] ~ [ linux-3.8.13 ] ~ [ linux-3.7.10 ] ~ [ linux-3.6.11 ] ~ [ linux-3.5.7 ] ~ [ linux-3.4.113 ] ~ [ linux-3.3.8 ] ~ [ linux-3.2.102 ] ~ [ linux-3.1.10 ] ~ [ linux-3.0.101 ] ~ [ linux-2.6.39.4 ] ~ [ linux-2.6.38.8 ] ~ [ linux-2.6.37.6 ] ~ [ linux-2.6.36.4 ] ~ [ linux-2.6.35.14 ] ~ [ linux-2.6.34.15 ] ~ [ linux-2.6.33.20 ] ~ [ linux-2.6.32.71 ] ~ [ linux-2.6.0 ] ~ [ linux-2.4.37.11 ] ~ [ unix-v6-master ] ~ [ ccs-tools-1.8.5 ] ~ [ policy-sample ] ~
Architecture: ~ [ i386 ] ~ [ alpha ] ~ [ m68k ] ~ [ mips ] ~ [ ppc ] ~ [ sparc ] ~ [ sparc64 ] ~

  1 /*
  2  *  linux/arch/m68knommu/kernel/setup.c
  3  *
  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>
 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 
 19 #include <linux/kernel.h>
 20 #include <linux/sched.h>
 21 #include <linux/delay.h>
 22 #include <linux/interrupt.h>
 23 #include <linux/fb.h>
 24 #include <linux/module.h>
 25 #include <linux/mm.h>
 26 #include <linux/console.h>
 27 #include <linux/errno.h>
 28 #include <linux/string.h>
 29 #include <linux/bootmem.h>
 30 #include <linux/seq_file.h>
 31 #include <linux/init.h>
 32 #include <linux/initrd.h>
 33 #include <linux/root_dev.h>
 34 #include <linux/rtc.h>
 35 
 36 #include <asm/setup.h>
 37 #include <asm/bootinfo.h>
 38 #include <asm/irq.h>
 39 #include <asm/machdep.h>
 40 #include <asm/pgtable.h>
 41 #include <asm/sections.h>
 42 
 43 unsigned long memory_start;
 44 unsigned long memory_end;
 45 
 46 EXPORT_SYMBOL(memory_start);
 47 EXPORT_SYMBOL(memory_end);
 48 
 49 char __initdata command_line[COMMAND_LINE_SIZE];
 50 
 51 /* machine dependent timer functions */
 52 void (*mach_sched_init)(irq_handler_t handler) __initdata = NULL;
 53 int (*mach_set_clock_mmss)(unsigned long);
 54 int (*mach_hwclk) (int, struct rtc_time*);
 55 
 56 /* machine dependent reboot functions */
 57 void (*mach_reset)(void);
 58 void (*mach_halt)(void);
 59 void (*mach_power_off)(void);
 60 
 61 #ifdef CONFIG_M68000
 62 #if defined(CONFIG_M68328)
 63 #define CPU_NAME        "MC68328"
 64 #elif defined(CONFIG_M68EZ328)
 65 #define CPU_NAME        "MC68EZ328"
 66 #elif defined(CONFIG_M68VZ328)
 67 #define CPU_NAME        "MC68VZ328"
 68 #else
 69 #define CPU_NAME        "MC68000"
 70 #endif
 71 #endif /* CONFIG_M68000 */
 72 #ifndef CPU_NAME
 73 #define CPU_NAME        "UNKNOWN"
 74 #endif
 75 
 76 /*
 77  * Different cores have different instruction execution timings.
 78  * The old/traditional 68000 cores are basically all the same, at 16.
 79  * The ColdFire cores vary a little, their values are defined in their
 80  * headers. We default to the standard 68000 value here.
 81  */
 82 #ifndef CPU_INSTR_PER_JIFFY
 83 #define CPU_INSTR_PER_JIFFY     16
 84 #endif
 85 
 86 void __init setup_arch(char **cmdline_p)
 87 {
 88         int bootmap_size;
 89 
 90         memory_start = PAGE_ALIGN(_ramstart);
 91         memory_end = _ramend;
 92 
 93         init_mm.start_code = (unsigned long) &_stext;
 94         init_mm.end_code = (unsigned long) &_etext;
 95         init_mm.end_data = (unsigned long) &_edata;
 96         init_mm.brk = (unsigned long) 0;
 97 
 98         config_BSP(&command_line[0], sizeof(command_line));
 99 
100 #if defined(CONFIG_BOOTPARAM)
101         strncpy(&command_line[0], CONFIG_BOOTPARAM_STRING, sizeof(command_line));
102         command_line[sizeof(command_line) - 1] = 0;
103 #endif /* CONFIG_BOOTPARAM */
104 
105         process_uboot_commandline(&command_line[0], sizeof(command_line));
106 
107         pr_info("uClinux with CPU " CPU_NAME "\n");
108 
109 #ifdef CONFIG_UCDIMM
110         pr_info("uCdimm by Lineo, Inc. <www.lineo.com>\n");
111 #endif
112 #ifdef CONFIG_M68VZ328
113         pr_info("M68VZ328 support by Evan Stawnyczy <e@lineo.ca>\n");
114 #endif
115 #ifdef CONFIG_COLDFIRE
116         pr_info("COLDFIRE port done by Greg Ungerer, gerg@snapgear.com\n");
117 #ifdef CONFIG_M5307
118         pr_info("Modified for M5307 by Dave Miller, dmiller@intellistor.com\n");
119 #endif
120 #ifdef CONFIG_ELITE
121         pr_info("Modified for M5206eLITE by Rob Scott, rscott@mtrob.fdns.net\n");
122 #endif
123 #endif
124         pr_info("Flat model support (C) 1998,1999 Kenneth Albanowski, D. Jeff Dionne\n");
125 
126 #if defined( CONFIG_PILOT ) && defined( CONFIG_M68328 )
127         pr_info("TRG SuperPilot FLASH card support <info@trgnet.com>\n");
128 #endif
129 #if defined( CONFIG_PILOT ) && defined( CONFIG_M68EZ328 )
130         pr_info("PalmV support by Lineo Inc. <jeff@uclinux.com>\n");
131 #endif
132 #ifdef CONFIG_DRAGEN2
133         pr_info("DragonEngine II board support by Georges Menie\n");
134 #endif
135 #ifdef CONFIG_M5235EVB
136         pr_info("Motorola M5235EVB support (C)2005 Syn-tech Systems, Inc. (Jate Sujjavanich)\n");
137 #endif
138 
139         pr_debug("KERNEL -> TEXT=0x%p-0x%p DATA=0x%p-0x%p BSS=0x%p-0x%p\n",
140                  _stext, _etext, _sdata, _edata, __bss_start, __bss_stop);
141         pr_debug("MEMORY -> ROMFS=0x%p-0x%06lx MEM=0x%06lx-0x%06lx\n ",
142                  __bss_stop, memory_start, memory_start, memory_end);
143 
144         /* Keep a copy of command line */
145         *cmdline_p = &command_line[0];
146         memcpy(boot_command_line, command_line, COMMAND_LINE_SIZE);
147         boot_command_line[COMMAND_LINE_SIZE-1] = 0;
148 
149 #if defined(CONFIG_FRAMEBUFFER_CONSOLE) && defined(CONFIG_DUMMY_CONSOLE)
150         conswitchp = &dummy_con;
151 #endif
152 
153         /*
154          * Give all the memory to the bootmap allocator, tell it to put the
155          * boot mem_map at the start of memory.
156          */
157         min_low_pfn = PFN_DOWN(memory_start);
158         max_pfn = max_low_pfn = PFN_DOWN(memory_end);
159 
160         bootmap_size = init_bootmem_node(
161                         NODE_DATA(0),
162                         min_low_pfn,            /* map goes here */
163                         PFN_DOWN(PAGE_OFFSET),
164                         max_pfn);
165         /*
166          * Free the usable memory, we have to make sure we do not free
167          * the bootmem bitmap so we then reserve it after freeing it :-)
168          */
169         free_bootmem(memory_start, memory_end - memory_start);
170         reserve_bootmem(memory_start, bootmap_size, BOOTMEM_DEFAULT);
171 
172 #if defined(CONFIG_UBOOT) && defined(CONFIG_BLK_DEV_INITRD)
173         if ((initrd_start > 0) && (initrd_start < initrd_end) &&
174                         (initrd_end < memory_end))
175                 reserve_bootmem(initrd_start, initrd_end - initrd_start,
176                                  BOOTMEM_DEFAULT);
177 #endif /* if defined(CONFIG_BLK_DEV_INITRD) */
178 
179         /*
180          * Get kmalloc into gear.
181          */
182         paging_init();
183 }
184 
185 /*
186  *      Get CPU information for use by the procfs.
187  */
188 static int show_cpuinfo(struct seq_file *m, void *v)
189 {
190         char *cpu, *mmu, *fpu;
191         u_long clockfreq;
192 
193         cpu = CPU_NAME;
194         mmu = "none";
195         fpu = "none";
196         clockfreq = (loops_per_jiffy * HZ) * CPU_INSTR_PER_JIFFY;
197 
198         seq_printf(m, "CPU:\t\t%s\n"
199                       "MMU:\t\t%s\n"
200                       "FPU:\t\t%s\n"
201                       "Clocking:\t%lu.%1luMHz\n"
202                       "BogoMips:\t%lu.%02lu\n"
203                       "Calibration:\t%lu loops\n",
204                       cpu, mmu, fpu,
205                       clockfreq / 1000000,
206                       (clockfreq / 100000) % 10,
207                       (loops_per_jiffy * HZ) / 500000,
208                       ((loops_per_jiffy * HZ) / 5000) % 100,
209                       (loops_per_jiffy * HZ));
210 
211         return 0;
212 }
213 
214 static void *c_start(struct seq_file *m, loff_t *pos)
215 {
216         return *pos < NR_CPUS ? ((void *) 0x12345678) : NULL;
217 }
218 
219 static void *c_next(struct seq_file *m, void *v, loff_t *pos)
220 {
221         ++*pos;
222         return c_start(m, pos);
223 }
224 
225 static void c_stop(struct seq_file *m, void *v)
226 {
227 }
228 
229 const struct seq_operations cpuinfo_op = {
230         .start  = c_start,
231         .next   = c_next,
232         .stop   = c_stop,
233         .show   = show_cpuinfo,
234 };
235 
236 

~ [ source navigation ] ~ [ diff markup ] ~ [ identifier search ] ~

kernel.org | git.kernel.org | LWN.net | Project Home | Wiki (Japanese) | Wiki (English) | SVN repository | Mail admin

Linux® is a registered trademark of Linus Torvalds in the United States and other countries.
TOMOYO® is a registered trademark of NTT DATA CORPORATION.

osdn.jp