arch/sh/include/asm/bugs.h

   1 #ifndef __ASM_SH_BUGS_H
   2 #define __ASM_SH_BUGS_H
   3
   4 /*
   5  * This is included by init/main.c to check for architecture-dependent bugs.
   6  *
   7  * Needs:
   8  *      void check_bugs(void);
   9  */
  10
  11 /*
  12  * I don't know of any Super-H bugs yet.
  13  */
  14
  15 #include <asm/processor.h>
  16
  17 extern void select_idle_routine(void);
  18
  19 static void __init check_bugs(void)
  20 {
  21         extern unsigned long loops_per_jiffy;
  22         char *p = &init_utsname()->machine[2]; /* "sh" */
  23
  24         select_idle_routine();
  25
  26         current_cpu_data.loops_per_jiffy = loops_per_jiffy;
  27
  28         switch (current_cpu_data.family) {
  29         case CPU_FAMILY_SH2:
  30                 *p++ = '2';
  31                 break;
  32         case CPU_FAMILY_SH2A:
  33                 *p++ = '2';
  34                 *p++ = 'a';
  35                 break;
  36         case CPU_FAMILY_SH3:
  37                 *p++ = '3';
  38                 break;
  39         case CPU_FAMILY_SH4:
  40                 *p++ = '4';
  41                 break;
  42         case CPU_FAMILY_SH4A:
  43                 *p++ = '4';
  44                 *p++ = 'a';
  45                 break;
  46         case CPU_FAMILY_SH4AL_DSP:
  47                 *p++ = '4';
  48                 *p++ = 'a';
  49                 *p++ = 'l';
  50                 *p++ = '-';
  51                 *p++ = 'd';
  52                 *p++ = 's';
  53                 *p++ = 'p';
  54                 break;
  55         case CPU_FAMILY_SH5:
  56                 *p++ = '6';
  57                 *p++ = '4';
  58                 break;
  59         case CPU_FAMILY_UNKNOWN:
  60                 /*
  61                  * Specifically use CPU_FAMILY_UNKNOWN rather than
  62                  * default:, so we're able to have the compiler whine
  63                  * about unhandled enumerations.
  64                  */
  65                 break;
  66         }
  67
  68         printk("CPU: %s\n", get_cpu_subtype(&current_cpu_data));
  69
  70 #ifndef __LITTLE_ENDIAN__
  71         /* 'eb' means 'Endian Big' */
  72         *p++ = 'e';
  73         *p++ = 'b';
  74 #endif
  75         *p = '\0';
  76 }
  77 #endif /* __ASM_SH_BUGS_H */