sys/arch/acorn26/podulebus/if_ehreg.h

   1 /*      $NetBSD: if_ehreg.h,v 1.5 2000/12/22 22:21:37 bjh21 Exp $       */
   2
   3 /*
   4  * This file is in the public domain
   5  */
   6
   7 #ifndef _IF_EHREG_H
   8 #define _IF_EHREG_H
   9
  10 /*
  11  * Register definitions for i-cubed EtherLan 100-, 200-, and 500-series cards.
  12  */
  13
  14 /*
  15  * Addr         r/w     Descr
  16  * SYNC+0x0000  r       ROM data
  17  * SYNC+0x0000  w       ROM page latch
  18  * FAST+0x0800  r/w     AUX1
  19  * FAST+0x2800  r/w     AUX2
  20  * MEMC+0x0000  r/w     MX98902A registers
  21  * MEMC+0x0200  r/w     MX98902A data
  22  *
  23  * AUX1 bits:
  24  * 0 r Interrupt status
  25  * 0 w Interrupt enable
  26  * 1 r (E100) Link beat (0 = link, 1 = no link)
  27  * 1 w (E100) Media select (0 = 10b2, 1 = 10bT)
  28  * 1 r (E200) MAU ID input (from MAU)
  29  * 1 w (E200) MAU ID output (to MAU)
  30  *
  31  * AUX2 bits:
  32  * 0 r Media sense (0 = 10bT, 1 = 10b2)
  33  */
  34
  35 /* Loosely derived from Linux drivers/acorn/net/etherh.c. */
  36
  37 /* All offsets in bus_size units */
  38 #define EH_DP8390       0x000   /* MEMC space */
  39 #define EH_DATA         0x200   /* MEMC space */
  40 #define EH_CTRL         0x200   /* FAST space */
  41 #define EH_CTRL2        0xa00   /* FAST space */
  42
  43 /* Bits of the control register */
  44 #define EH_CTRL_IE      0x01    /* Interrupt enable (W) */
  45 #define EH_CTRL_IS      0x01    /* Interrupt status (R) */
  46 #define EH_CTRL_MEDIA   0x02    /* Media select (0 = 10b2, 1 = 10bT) (W) */
  47 #define EH_CTRL_NOLINK  0x02    /* Link beat detect (R) */
  48
  49 /*
  50  * The EtherLan 200 is strange.  A write to AUX1 following another write has
  51  * the effect described above, but a write following a read affects this:
  52  */
  53 #define EH200_CTRL_MAU  0x02    /* MAU input/output */
  54
  55 /* Bits of control register 2 */
  56 #define EH_CTRL2_10B2   0x01    /* Media sense (0 = 10bT, 1 = 10b2) (R) */
  57
  58 /* EtherLan 200 MAU types */
  59 #define EH200_MAUID_10_T        2
  60 #define EH200_MAUID_10_2        3
  61 #define EH200_MAUID_10_5        4
  62 #endif