drivers/net/bmac.h

   1 /*
   2  * mace.h - definitions for the registers in the "Big Mac"
   3  *  Ethernet controller found in PowerMac G3 models.
   4  *
   5  * Copyright (C) 1998 Randy Gobbel.
   6  *
   7  * This program is free software; you can redistribute it and/or
   8  * modify it under the terms of the GNU General Public License
   9  * as published by the Free Software Foundation; either version
  10  * 2 of the License, or (at your option) any later version.
  11  */
  12
  13 /* The "Big MAC" appears to have some parts in common with the Sun "Happy Meal"
  14  * (HME) controller.  See sunhme.h
  15  */
  16
  17
  18 /* register offsets */
  19
  20 /* global status and control */
  21 #define XIFC            0x000   /* low-level interface control */
  22 #       define  TxOutputEnable  0x0001 /* output driver enable */
  23 #       define  XIFLoopback     0x0002 /* Loopback-mode XIF enable */
  24 #       define  MIILoopback     0x0004 /* Loopback-mode MII enable */
  25 #       define  MIILoopbackBits 0x0006
  26 #       define  MIIBuffDisable  0x0008 /* MII receive buffer disable */
  27 #       define  SQETestEnable   0x0010 /* SQE test enable */
  28 #       define  SQETimeWindow   0x03e0 /* SQE time window */
  29 #       define  XIFLanceMode    0x0010 /* Lance mode enable */
  30 #       define  XIFLanceIPG0    0x03e0 /* Lance mode IPG0 */
  31 #define TXFIFOCSR       0x100   /* transmit FIFO control */
  32 #       define  TxFIFOEnable    0x0001
  33 #define TXTH            0x110   /* transmit threshold */
  34 #       define  TxThreshold     0x0004
  35 #define RXFIFOCSR       0x120   /* receive FIFO control */
  36 #       define  RxFIFOEnable    0x0001
  37 #define MEMADD          0x130   /* memory address, unknown function */
  38 #define MEMDATAHI       0x140   /* memory data high, presently unused in driver */
  39 #define MEMDATALO       0x150   /* memory data low, presently unused in driver */
  40 #define XCVRIF          0x160   /* transceiver interface control */
  41 #       define  COLActiveLow    0x0002
  42 #       define  SerialMode      0x0004
  43 #       define  ClkBit          0x0008
  44 #       define  LinkStatus      0x0100
  45 #define CHIPID          0x170   /* chip ID */
  46 #define MIFCSR          0x180   /* ??? */
  47 #define SROMCSR         0x190   /* SROM control */
  48 #       define  ChipSelect      0x0001
  49 #       define  Clk             0x0002
  50 #define TXPNTR          0x1a0   /* transmit pointer */
  51 #define RXPNTR          0x1b0   /* receive pointer */
  52 #define STATUS          0x200   /* status--reading this clears it */
  53 #define INTDISABLE      0x210   /* interrupt enable/disable control */
  54 /* bits below are the same in both STATUS and INTDISABLE registers */
  55 #       define  FrameReceived   0x00000001 /* Received a frame */
  56 #       define  RxFrameCntExp   0x00000002 /* Receive frame counter expired */
  57 #       define  RxAlignCntExp   0x00000004 /* Align-error counter expired */
  58 #       define  RxCRCCntExp     0x00000008 /* CRC-error counter expired */
  59 #       define  RxLenCntExp     0x00000010 /* Length-error counter expired */
  60 #       define  RxOverFlow      0x00000020 /* Receive FIFO overflow */
  61 #       define  RxCodeViolation 0x00000040 /* Code-violation counter expired */
  62 #       define  SQETestError    0x00000080 /* Test error in XIF for SQE */
  63 #       define  FrameSent       0x00000100 /* Transmitted a frame */
  64 #       define  TxUnderrun      0x00000200 /* Transmit FIFO underrun */
  65 #       define  TxMaxSizeError  0x00000400 /* Max-packet size error */
  66 #       define  TxNormalCollExp 0x00000800 /* Normal-collision counter expired */
  67 #       define  TxExcessCollExp 0x00001000 /* Excess-collision counter expired */
  68 #       define  TxLateCollExp   0x00002000 /* Late-collision counter expired */
  69 #       define  TxNetworkCollExp 0x00004000 /* First-collision counter expired */
  70 #       define  TxDeferTimerExp 0x00008000 /* Defer-timer expired */
  71 #       define  RxFIFOToHost    0x00010000 /* Data moved from FIFO to host */
  72 #       define  RxNoDescriptors 0x00020000 /* No more receive descriptors */
  73 #       define  RxDMAError      0x00040000 /* Error during receive DMA */
  74 #       define  RxDMALateErr    0x00080000 /* Receive DMA, data late */
  75 #       define  RxParityErr     0x00100000 /* Parity error during receive DMA */
  76 #       define  RxTagError      0x00200000 /* Tag error during receive DMA */
  77 #       define  TxEOPError      0x00400000 /* Tx descriptor did not have EOP set */
  78 #       define  MIFIntrEvent    0x00800000 /* MIF is signaling an interrupt */
  79 #       define  TxHostToFIFO    0x01000000 /* Data moved from host to FIFO  */
  80 #       define  TxFIFOAllSent   0x02000000 /* Transmitted all packets in FIFO */
  81 #       define  TxDMAError      0x04000000 /* Error during transmit DMA */
  82 #       define  TxDMALateError  0x08000000 /* Late error during transmit DMA */
  83 #       define  TxParityError   0x10000000 /* Parity error during transmit DMA */
  84 #       define  TxTagError      0x20000000 /* Tag error during transmit DMA */
  85 #       define  PIOError        0x40000000 /* PIO access got an error */
  86 #       define  PIOParityError  0x80000000 /* PIO access got a parity error  */
  87 #       define  DisableAll      0xffffffff
  88 #       define  EnableAll       0x00000000
  89 /* #    define  NormalIntEvents ~(FrameReceived | FrameSent | TxUnderrun) */
  90 #       define  EnableNormal    ~(FrameReceived | FrameSent)
  91 #       define  EnableErrors    (FrameReceived | FrameSent)
  92 #       define  RxErrorMask     (RxFrameCntExp | RxAlignCntExp | RxCRCCntExp | \
  93                                  RxLenCntExp | RxOverFlow | RxCodeViolation)
  94 #       define  TxErrorMask     (TxUnderrun | TxMaxSizeError | TxExcessCollExp | \
  95                                  TxLateCollExp | TxNetworkCollExp | TxDeferTimerExp)
  96
  97 /* transmit control */
  98 #define TXRST           0x420   /* transmit reset */
  99 #       define  TxResetBit      0x0001
 100 #define TXCFG           0x430   /* transmit configuration control*/
 101 #       define  TxMACEnable     0x0001 /* output driver enable */
 102 #       define  TxSlowMode      0x0020 /* enable slow mode */
 103 #       define  TxIgnoreColl    0x0040 /* ignore transmit collisions */
 104 #       define  TxNoFCS         0x0080 /* do not emit FCS */
 105 #       define  TxNoBackoff     0x0100 /* no backoff in case of collisions */
 106 #       define  TxFullDuplex    0x0200 /* enable full-duplex */
 107 #       define  TxNeverGiveUp   0x0400 /* don't give up on transmits */
 108 #define IPG1            0x440   /* Inter-packet gap 1 */
 109 #define IPG2            0x450   /* Inter-packet gap 2 */
 110 #define ALIMIT          0x460   /* Transmit attempt limit */
 111 #define SLOT            0x470   /* Transmit slot time */
 112 #define PALEN           0x480   /* Size of transmit preamble */
 113 #define PAPAT           0x490   /* Pattern for transmit preamble */
 114 #define TXSFD           0x4a0   /* Transmit frame delimiter */
 115 #define JAM             0x4b0   /* Jam size */
 116 #define TXMAX           0x4c0   /* Transmit max pkt size */
 117 #define TXMIN           0x4d0   /* Transmit min pkt size */
 118 #define PAREG           0x4e0   /* Count of transmit peak attempts */
 119 #define DCNT            0x4f0   /* Transmit defer timer */
 120 #define NCCNT           0x500   /* Transmit normal-collision counter */
 121 #define NTCNT           0x510   /* Transmit first-collision counter */
 122 #define EXCNT           0x520   /* Transmit excess-collision counter */
 123 #define LTCNT           0x530   /* Transmit late-collision counter */
 124 #define RSEED           0x540   /* Transmit random number seed */
 125 #define TXSM            0x550   /* Transmit state machine */
 126
 127 /* receive control */
 128 #define RXRST           0x620   /* receive reset */
 129 #       define  RxResetValue    0x0000
 130 #define RXCFG           0x630   /* receive configuration control */
 131 #       define  RxMACEnable     0x0001 /* receiver overall enable */
 132 #       define  RxCFGReserved   0x0004
 133 #       define  RxPadStripEnab  0x0020 /* enable pad byte stripping */
 134 #       define  RxPromiscEnable 0x0040 /* turn on promiscuous mode */
 135 #       define  RxNoErrCheck    0x0080 /* disable receive error checking */
 136 #       define  RxCRCNoStrip    0x0100 /* disable auto-CRC-stripping */
 137 #       define  RxRejectOwnPackets 0x0200 /* don't receive our own packets */
 138 #       define  RxGrpPromisck   0x0400 /* enable group promiscuous mode */
 139 #       define  RxHashFilterEnable 0x0800 /* enable hash filter */
 140 #       define  RxAddrFilterEnable 0x1000 /* enable address filter */
 141 #define RXMAX           0x640   /* Max receive packet size */
 142 #define RXMIN           0x650   /* Min receive packet size */
 143 #define MADD2           0x660   /* our enet address, high part */
 144 #define MADD1           0x670   /* our enet address, middle part */
 145 #define MADD0           0x680   /* our enet address, low part */
 146 #define FRCNT           0x690   /* receive frame counter */
 147 #define LECNT           0x6a0   /* Receive excess length error counter */
 148 #define AECNT           0x6b0   /* Receive misaligned error counter */
 149 #define FECNT           0x6c0   /* Receive CRC error counter */
 150 #define RXSM            0x6d0   /* Receive state machine */
 151 #define RXCV            0x6e0   /* Receive code violation */
 152
 153 #define BHASH3          0x700   /* multicast hash register */
 154 #define BHASH2          0x710   /* multicast hash register */
 155 #define BHASH1          0x720   /* multicast hash register */
 156 #define BHASH0          0x730   /* multicast hash register */
 157
 158 #define AFR2            0x740   /* address filtering setup? */
 159 #define AFR1            0x750   /* address filtering setup? */
 160 #define AFR0            0x760   /* address filtering setup? */
 161 #define AFCR            0x770   /* address filter compare register? */
 162 #       define  EnableAllCompares 0x0fff
 163
 164 /* bits in XIFC */