i386/linux-2.3.21/arch/mips/dec/prom/prom.h

   1 /*
   2  * Miscellaneous definitions used to call the routines contained in the boot
   3  * PROMs on various models of DECSTATION's.
   4  * the rights to redistribute these changes.
   5  */
   6
   7 #ifndef __ASM_DEC_PROM_H
   8 #define __ASM_DEC_PROM_H
   9
  10 /*
  11  * PMAX/3MAX PROM entry points for DS2100/3100's and DS5000/2xx's.  Many of
  12  * these will work for MIPSen as well!
  13  */
  14 #define VEC_RESET               0xBFC00000              /* Prom base address */
  15 #define PMAX_PROM_ENTRY(x)      (VEC_RESET+((x)*8))     /* Prom jump table */
  16
  17 #define PMAX_PROM_HALT          PMAX_PROM_ENTRY(2)      /* valid on MIPSen */
  18 #define PMAX_PROM_AUTOBOOT      PMAX_PROM_ENTRY(5)      /* valid on MIPSen */
  19 #define PMAX_PROM_OPEN          PMAX_PROM_ENTRY(6)
  20 #define PMAX_PROM_READ          PMAX_PROM_ENTRY(7)
  21 #define PMAX_PROM_CLOSE         PMAX_PROM_ENTRY(10)
  22 #define PMAX_PROM_LSEEK         PMAX_PROM_ENTRY(11)
  23 #define PMAX_PROM_GETCHAR       PMAX_PROM_ENTRY(12)
  24 #define PMAX_PROM_PUTCHAR       PMAX_PROM_ENTRY(13)     /* 12 on MIPSen */
  25 #define PMAX_PROM_GETS          PMAX_PROM_ENTRY(15)
  26 #define PMAX_PROM_PRINTF        PMAX_PROM_ENTRY(17)
  27 #define PMAX_PROM_GETENV        PMAX_PROM_ENTRY(33)     /* valid on MIPSen */
  28
  29 /*
  30  * Magic number indicating REX PROM available on DECSTATION.  Found in
  31  * register a2 on transfer of control to program from PROM.
  32  */
  33 #define REX_PROM_MAGIC          0x30464354
  34
  35 /*
  36  * 3MIN/MAXINE PROM entry points for DS5000/1xx's, DS5000/xx's, and
  37  * DS5000/2x0.
  38  */
  39 #define REX_PROM_GETBITMAP      0x84/4  /* get mem bitmap */
  40 #define REX_PROM_GETCHAR        0x24/4  /* getch() */
  41 #define REX_PROM_GETENV         0x64/4  /* get env. variable */
  42 #define REX_PROM_GETSYSID       0x80/4  /* get system id */
  43 #define REX_PROM_GETTCINFO      0xa4/4
  44 #define REX_PROM_PRINTF         0x30/4  /* printf() */
  45 #define REX_PROM_SLOTADDR       0x6c/4  /* slotaddr */
  46 #define REX_PROM_BOOTINIT       0x54/4  /* open() */
  47 #define REX_PROM_BOOTREAD       0x58/4  /* read() */
  48 #define REX_PROM_CLEARCACHE     0x7c/4
  49
  50 #endif /* __ASM_DEC_PROM_H */
  51