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)
  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 typedef struct fec {
  24         unsigned long   fec_reserved0;
  25         unsigned long   fec_ievent;             /* Interrupt event reg */
  26         unsigned long   fec_imask;              /* Interrupt mask reg */
  27         unsigned long   fec_reserved1;
  28         unsigned long   fec_r_des_active;       /* Receive descriptor reg */
  29         unsigned long   fec_x_des_active;       /* Transmit descriptor reg */
  30         unsigned long   fec_reserved2[3];
  31         unsigned long   fec_ecntrl;             /* Ethernet control reg */
  32         unsigned long   fec_reserved3[6];
  33         unsigned long   fec_mii_data;           /* MII manage frame reg */
  34         unsigned long   fec_mii_speed;          /* MII speed control reg */
  35         unsigned long   fec_reserved4[7];
  36         unsigned long   fec_mib_ctrlstat;       /* MIB control/status reg */
  37         unsigned long   fec_reserved5[7];
  38         unsigned long   fec_r_cntrl;            /* Receive control reg */
  39         unsigned long   fec_reserved6[15];
  40         unsigned long   fec_x_cntrl;            /* Transmit Control reg */
  41         unsigned long   fec_reserved7[7];
  42         unsigned long   fec_addr_low;           /* Low 32bits MAC address */
  43         unsigned long   fec_addr_high;          /* High 16bits MAC address */
  44         unsigned long   fec_opd;                /* Opcode + Pause duration */
  45         unsigned long   fec_reserved8[10];
  46         unsigned long   fec_hash_table_high;    /* High 32bits hash table */
  47         unsigned long   fec_hash_table_low;     /* Low 32bits hash table */
  48         unsigned long   fec_grp_hash_table_high;/* High 32bits hash table */
  49         unsigned long   fec_grp_hash_table_low; /* Low 32bits hash table */
  50         unsigned long   fec_reserved9[7];
  51         unsigned long   fec_x_wmrk;             /* FIFO transmit water mark */
  52         unsigned long   fec_reserved10;
  53         unsigned long   fec_r_bound;            /* FIFO receive bound reg */
  54         unsigned long   fec_r_fstart;           /* FIFO receive start reg */
  55         unsigned long   fec_reserved11[11];
  56         unsigned long   fec_r_des_start;        /* Receive descriptor ring */
  57         unsigned long   fec_x_des_start;        /* Transmit descriptor ring */
  58         unsigned long   fec_r_buff_size;        /* Maximum receive buff size */
  59 } fec_t;
  60
  61 #else
  62
  63 /*
  64  *      Define device register set address map.
  65  */
  66 typedef struct fec {
  67         unsigned long   fec_ecntrl;             /* Ethernet control reg */
  68         unsigned long   fec_ievent;             /* Interrupt even reg */
  69         unsigned long   fec_imask;              /* Interrupt mask reg */
  70         unsigned long   fec_ivec;               /* Interrupt vec status reg */
  71         unsigned long   fec_r_des_active;       /* Receive descriptor reg */
  72         unsigned long   fec_x_des_active;       /* Transmit descriptor reg */
  73         unsigned long   fec_reserved1[10];
  74         unsigned long   fec_mii_data;           /* MII manage frame reg */
  75         unsigned long   fec_mii_speed;          /* MII speed control reg */
  76         unsigned long   fec_reserved2[17];
  77         unsigned long   fec_r_bound;            /* FIFO receive bound reg */
  78         unsigned long   fec_r_fstart;           /* FIFO receive start reg */
  79         unsigned long   fec_reserved3[4];
  80         unsigned long   fec_x_wmrk;             /* FIFO transmit water mark */
  81         unsigned long   fec_reserved4;
  82         unsigned long   fec_x_fstart;           /* FIFO transmit start reg */
  83         unsigned long   fec_reserved5[21];
  84         unsigned long   fec_r_cntrl;            /* Receive control reg */
  85         unsigned long   fec_max_frm_len;        /* Maximum frame length reg */
  86         unsigned long   fec_reserved6[14];
  87         unsigned long   fec_x_cntrl;            /* Transmit Control reg */
  88         unsigned long   fec_reserved7[158];
  89         unsigned long   fec_addr_low;           /* Low 32bits MAC address */
  90         unsigned long   fec_addr_high;          /* High 16bits MAC address */
  91         unsigned long   fec_hash_table_high;    /* High 32bits hash table */
  92         unsigned long   fec_hash_table_low;     /* Low 32bits hash table */
  93         unsigned long   fec_r_des_start;        /* Receive descriptor ring */
  94         unsigned long   fec_x_des_start;        /* Transmit descriptor ring */
  95         unsigned long   fec_r_buff_size;        /* Maximum receive buff size */
  96         unsigned long   reserved8[9];
  97         unsigned long   fec_fifo_ram[112];      /* FIFO RAM buffer */
  98 } fec_t;
  99
 100 #endif /* CONFIG_M5272 */
 101
 102
 103 /*
 104  *      Define the buffer descriptor structure.
 105  */
 106 typedef struct bufdesc {
 107         unsigned short  cbd_sc;                 /* Control and status info */
 108         unsigned short  cbd_datlen;             /* Data length */
 109         unsigned long   cbd_bufaddr;            /* Buffer address */
 110 } cbd_t;
 111
 112
 113 /*
 114  *      The following definitions courtesy of commproc.h, which where
 115  *      Copyright (c) 1997 Dan Malek (dmalek@jlc.net).
 116  */
 117 #define BD_SC_EMPTY     ((ushort)0x8000)        /* Recieve is empty */
 118 #define BD_SC_READY     ((ushort)0x8000)        /* Transmit is ready */
 119 #define BD_SC_WRAP      ((ushort)0x2000)        /* Last buffer descriptor */
 120 #define BD_SC_INTRPT    ((ushort)0x1000)        /* Interrupt on change */
 121 #define BD_SC_CM        ((ushort)0x0200)        /* Continous mode */
 122 #define BD_SC_ID        ((ushort)0x0100)        /* Rec'd too many idles */
 123 #define BD_SC_P         ((ushort)0x0100)        /* xmt preamble */
 124 #define BD_SC_BR        ((ushort)0x0020)        /* Break received */
 125 #define BD_SC_FR        ((ushort)0x0010)        /* Framing error */
 126 #define BD_SC_PR        ((ushort)0x0008)        /* Parity error */
 127 #define BD_SC_OV        ((ushort)0x0002)        /* Overrun */
 128 #define BD_SC_CD        ((ushort)0x0001)        /* ?? */
 129
 130 /* Buffer descriptor control/status used by Ethernet receive.
 131 */
 132 #define BD_ENET_RX_EMPTY        ((ushort)0x8000)
 133 #define BD_ENET_RX_WRAP         ((ushort)0x2000)
 134 #define BD_ENET_RX_INTR         ((ushort)0x1000)
 135 #define BD_ENET_RX_LAST         ((ushort)0x0800)
 136 #define BD_ENET_RX_FIRST        ((ushort)0x0400)
 137 #define BD_ENET_RX_MISS         ((ushort)0x0100)
 138 #define BD_ENET_RX_LG           ((ushort)0x0020)
 139 #define BD_ENET_RX_NO           ((ushort)0x0010)
 140 #define BD_ENET_RX_SH           ((ushort)0x0008)
 141 #define BD_ENET_RX_CR           ((ushort)0x0004)
 142 #define BD_ENET_RX_OV           ((ushort)0x0002)
 143 #define BD_ENET_RX_CL           ((ushort)0x0001)
 144 #define BD_ENET_RX_STATS        ((ushort)0x013f)        /* All status bits */
 145
 146 /* Buffer descriptor control/status used by Ethernet transmit.
 147 */
 148 #define BD_ENET_TX_READY        ((ushort)0x8000)
 149 #define BD_ENET_TX_PAD          ((ushort)0x4000)
 150 #define BD_ENET_TX_WRAP         ((ushort)0x2000)
 151 #define BD_ENET_TX_INTR         ((ushort)0x1000)
 152 #define BD_ENET_TX_LAST         ((ushort)0x0800)
 153 #define BD_ENET_TX_TC           ((ushort)0x0400)
 154 #define BD_ENET_TX_DEF          ((ushort)0x0200)
 155 #define BD_ENET_TX_HB           ((ushort)0x0100)
 156 #define BD_ENET_TX_LC           ((ushort)0x0080)
 157 #define BD_ENET_TX_RL           ((ushort)0x0040)
 158 #define BD_ENET_TX_RCMASK       ((ushort)0x003c)
 159 #define BD_ENET_TX_UN           ((ushort)0x0002)
 160 #define BD_ENET_TX_CSL          ((ushort)0x0001)
 161 #define BD_ENET_TX_STATS        ((ushort)0x03ff)        /* All status bits */
 162
 163
 164 /****************************************************************************/
 165 #endif /* FEC_H */