drivers/net/fec.h

   1 /****************************************************************************/
   2
   3 /*
   4  *      fec.h  --  Fast Ethernet Controller for Motorola ColdFire SoC
   5  *                 processors.
   6  *
   7  *      (C) Copyright 2000-2005, Greg Ungerer (gerg@snapgear.com)
   8  *      (C) Copyright 2000-2001, Lineo (www.lineo.com)
   9  */
  10
  11 /****************************************************************************/
  12 #ifndef FEC_H
  13 #define FEC_H
  14 /****************************************************************************/
  15
  16 #if defined(CONFIG_M523x) || defined(CONFIG_M527x) || defined(CONFIG_M528x) || \
  17     defined(CONFIG_M520x) || defined(CONFIG_M532x) || defined(CONFIG_ARCH_MXC)
  18 /*
  19  *      Just figures, Motorola would have to change the offsets for
  20  *      registers in the same peripheral device on different models
  21  *      of the ColdFire!
  22  */
  23 #define FEC_IEVENT              0x004 /* Interrupt event reg */
  24 #define FEC_IMASK               0x008 /* Interrupt mask reg */
  25 #define FEC_R_DES_ACTIVE        0x010 /* Receive descriptor reg */
  26 #define FEC_X_DES_ACTIVE        0x014 /* Transmit descriptor reg */
  27 #define FEC_ECNTRL              0x024 /* Ethernet control reg */
  28 #define FEC_MII_DATA            0x040 /* MII manage frame reg */
  29 #define FEC_MII_SPEED           0x044 /* MII speed control reg */
  30 #define FEC_MIB_CTRLSTAT        0x064 /* MIB control/status reg */
  31 #define FEC_R_CNTRL             0x084 /* Receive control reg */
  32 #define FEC_X_CNTRL             0x0c4 /* Transmit Control reg */
  33 #define FEC_ADDR_LOW            0x0e4 /* Low 32bits MAC address */
  34 #define FEC_ADDR_HIGH           0x0e8 /* High 16bits MAC address */
  35 #define FEC_OPD                 0x0ec /* Opcode + Pause duration */
  36 #define FEC_HASH_TABLE_HIGH     0x118 /* High 32bits hash table */
  37 #define FEC_HASH_TABLE_LOW      0x11c /* Low 32bits hash table */
  38 #define FEC_GRP_HASH_TABLE_HIGH 0x120 /* High 32bits hash table */
  39 #define FEC_GRP_HASH_TABLE_LOW  0x124 /* Low 32bits hash table */
  40 #define FEC_X_WMRK              0x144 /* FIFO transmit water mark */
  41 #define FEC_R_BOUND             0x14c /* FIFO receive bound reg */
  42 #define FEC_R_FSTART            0x150 /* FIFO receive start reg */
  43 #define FEC_R_DES_START         0x180 /* Receive descriptor ring */
  44 #define FEC_X_DES_START         0x184 /* Transmit descriptor ring */
  45 #define FEC_R_BUFF_SIZE         0x188 /* Maximum receive buff size */
  46
  47 #else
  48
  49 #define FEC_ECNTRL              0x000 /* Ethernet control reg */
  50 #define FEC_IEVENT              0x004 /* Interrupt even reg */
  51 #define FEC_IMASK               0x008 /* Interrupt mask reg */
  52 #define FEC_IVEC                0x00c /* Interrupt vec status reg */
  53 #define FEC_R_DES_ACTIVE        0x010 /* Receive descriptor reg */
  54 #define FEC_X_DES_ACTIVE        0x014 /* Transmit descriptor reg */
  55 #define FEC_MII_DATA            0x040 /* MII manage frame reg */
  56 #define FEC_MII_SPEED           0x044 /* MII speed control reg */
  57 #define FEC_R_BOUND             0x08c /* FIFO receive bound reg */
  58 #define FEC_R_FSTART            0x090 /* FIFO receive start reg */
  59 #define FEC_X_WMRK              0x0a4 /* FIFO transmit water mark */
  60 #define FEC_X_FSTART            0x0ac /* FIFO transmit start reg */
  61 #define FEC_R_CNTRL             0x104 /* Receive control reg */
  62 #define FEC_MAX_FRM_LEN         0x108 /* Maximum frame length reg */
  63 #define FEC_X_CNTRL             0x144 /* Transmit Control reg */
  64 #define FEC_ADDR_LOW            0x3c0 /* Low 32bits MAC address */
  65 #define FEC_ADDR_HIGH           0x3c4 /* High 16bits MAC address */
  66 #define FEC_GRP_HASH_TABLE_HIGH 0x3c8 /* High 32bits hash table */
  67 #define FEC_GRP_HASH_TABLE_LOW  0x3cc /* Low 32bits hash table */
  68 #define FEC_R_DES_START         0x3d0 /* Receive descriptor ring */
  69 #define FEC_X_DES_START         0x3d4 /* Transmit descriptor ring */
  70 #define FEC_R_BUFF_SIZE         0x3d8 /* Maximum receive buff size */
  71 #define FEC_FIFO_RAM            0x400 /* FIFO RAM buffer */
  72
  73 #endif /* CONFIG_M5272 */
  74
  75
  76 /*
  77  *      Define the buffer descriptor structure.
  78  */
  79 #ifdef CONFIG_ARCH_MXC
  80 struct bufdesc {
  81         unsigned short cbd_datlen;      /* Data length */
  82         unsigned short cbd_sc;  /* Control and status info */
  83         unsigned long cbd_bufaddr;      /* Buffer address */
  84 };
  85 #else
  86 struct bufdesc {
  87         unsigned short  cbd_sc;                 /* Control and status info */
  88         unsigned short  cbd_datlen;             /* Data length */
  89         unsigned long   cbd_bufaddr;            /* Buffer address */
  90 };
  91 #endif
  92
  93 /*
  94  *      The following definitions courtesy of commproc.h, which where
  95  *      Copyright (c) 1997 Dan Malek (dmalek@jlc.net).
  96  */
  97 #define BD_SC_EMPTY     ((ushort)0x8000)        /* Recieve is empty */
  98 #define BD_SC_READY     ((ushort)0x8000)        /* Transmit is ready */
  99 #define BD_SC_WRAP      ((ushort)0x2000)        /* Last buffer descriptor */
 100 #define BD_SC_INTRPT    ((ushort)0x1000)        /* Interrupt on change */
 101 #define BD_SC_CM        ((ushort)0x0200)        /* Continous mode */
 102 #define BD_SC_ID        ((ushort)0x0100)        /* Rec'd too many idles */
 103 #define BD_SC_P         ((ushort)0x0100)        /* xmt preamble */
 104 #define BD_SC_BR        ((ushort)0x0020)        /* Break received */
 105 #define BD_SC_FR        ((ushort)0x0010)        /* Framing error */
 106 #define BD_SC_PR        ((ushort)0x0008)        /* Parity error */
 107 #define BD_SC_OV        ((ushort)0x0002)        /* Overrun */
 108 #define BD_SC_CD        ((ushort)0x0001)        /* ?? */
 109
 110 /* Buffer descriptor control/status used by Ethernet receive.
 111 */
 112 #define BD_ENET_RX_EMPTY        ((ushort)0x8000)
 113 #define BD_ENET_RX_WRAP         ((ushort)0x2000)
 114 #define BD_ENET_RX_INTR         ((ushort)0x1000)
 115 #define BD_ENET_RX_LAST         ((ushort)0x0800)
 116 #define BD_ENET_RX_FIRST        ((ushort)0x0400)
 117 #define BD_ENET_RX_MISS         ((ushort)0x0100)
 118 #define BD_ENET_RX_LG           ((ushort)0x0020)
 119 #define BD_ENET_RX_NO           ((ushort)0x0010)
 120 #define BD_ENET_RX_SH           ((ushort)0x0008)
 121 #define BD_ENET_RX_CR           ((ushort)0x0004)
 122 #define BD_ENET_RX_OV           ((ushort)0x0002)
 123 #define BD_ENET_RX_CL           ((ushort)0x0001)
 124 #define BD_ENET_RX_STATS        ((ushort)0x013f)        /* All status bits */
 125
 126 /* Buffer descriptor control/status used by Ethernet transmit.
 127 */
 128 #define BD_ENET_TX_READY        ((ushort)0x8000)
 129 #define BD_ENET_TX_PAD          ((ushort)0x4000)
 130 #define BD_ENET_TX_WRAP         ((ushort)0x2000)
 131 #define BD_ENET_TX_INTR         ((ushort)0x1000)
 132 #define BD_ENET_TX_LAST         ((ushort)0x0800)
 133 #define BD_ENET_TX_TC           ((ushort)0x0400)
 134 #define BD_ENET_TX_DEF          ((ushort)0x0200)
 135 #define BD_ENET_TX_HB           ((ushort)0x0100)
 136 #define BD_ENET_TX_LC           ((ushort)0x0080)
 137 #define BD_ENET_TX_RL           ((ushort)0x0040)
 138 #define BD_ENET_TX_RCMASK       ((ushort)0x003c)
 139 #define BD_ENET_TX_UN           ((ushort)0x0002)
 140 #define BD_ENET_TX_CSL          ((ushort)0x0001)
 141 #define BD_ENET_TX_STATS        ((ushort)0x03ff)        /* All status bits */
 142
 143
 144 /****************************************************************************/
 145 #endif /* FEC_H */