drivers/net/fec_mpc52xx.h

   1 /*
   2  * drivers/drivers/net/fec_mpc52xx/fec.h
   3  *
   4  * Driver for the MPC5200 Fast Ethernet Controller
   5  *
   6  * Author: Dale Farnsworth <dfarnsworth@mvista.com>
   7  *
   8  * 2003-2004 (c) MontaVista, Software, Inc.  This file is licensed under
   9  * the terms of the GNU General Public License version 2.  This program
  10  * is licensed "as is" without any warranty of any kind, whether express
  11  * or implied.
  12  */
  13
  14 #ifndef __DRIVERS_NET_MPC52XX_FEC_H__
  15 #define __DRIVERS_NET_MPC52XX_FEC_H__
  16
  17 #include <linux/phy.h>
  18
  19 /* Tunable constant */
  20 /* FEC_RX_BUFFER_SIZE includes 4 bytes for CRC32 */
  21 #define FEC_RX_BUFFER_SIZE      1522    /* max receive packet size */
  22 #define FEC_RX_NUM_BD           256
  23 #define FEC_TX_NUM_BD           64
  24
  25 #define FEC_RESET_DELAY         50      /* uS */
  26
  27 #define FEC_WATCHDOG_TIMEOUT    ((400*HZ)/1000)
  28
  29 /* ======================================================================== */
  30 /* Hardware register sets & bits                                            */
  31 /* ======================================================================== */
  32
  33 struct mpc52xx_fec {
  34         u32 fec_id;                     /* FEC + 0x000 */
  35         u32 ievent;                     /* FEC + 0x004 */
  36         u32 imask;                      /* FEC + 0x008 */
  37
  38         u32 reserved0[1];               /* FEC + 0x00C */
  39         u32 r_des_active;               /* FEC + 0x010 */
  40         u32 x_des_active;               /* FEC + 0x014 */
  41         u32 r_des_active_cl;            /* FEC + 0x018 */
  42         u32 x_des_active_cl;            /* FEC + 0x01C */
  43         u32 ivent_set;                  /* FEC + 0x020 */
  44         u32 ecntrl;                     /* FEC + 0x024 */
  45
  46         u32 reserved1[6];               /* FEC + 0x028-03C */
  47         u32 mii_data;                   /* FEC + 0x040 */
  48         u32 mii_speed;                  /* FEC + 0x044 */
  49         u32 mii_status;                 /* FEC + 0x048 */
  50
  51         u32 reserved2[5];               /* FEC + 0x04C-05C */
  52         u32 mib_data;                   /* FEC + 0x060 */
  53         u32 mib_control;                /* FEC + 0x064 */
  54
  55         u32 reserved3[6];               /* FEC + 0x068-7C */
  56         u32 r_activate;                 /* FEC + 0x080 */
  57         u32 r_cntrl;                    /* FEC + 0x084 */
  58         u32 r_hash;                     /* FEC + 0x088 */
  59         u32 r_data;                     /* FEC + 0x08C */
  60         u32 ar_done;                    /* FEC + 0x090 */
  61         u32 r_test;                     /* FEC + 0x094 */
  62         u32 r_mib;                      /* FEC + 0x098 */
  63         u32 r_da_low;                   /* FEC + 0x09C */
  64         u32 r_da_high;                  /* FEC + 0x0A0 */
  65
  66         u32 reserved4[7];               /* FEC + 0x0A4-0BC */
  67         u32 x_activate;                 /* FEC + 0x0C0 */
  68         u32 x_cntrl;                    /* FEC + 0x0C4 */
  69         u32 backoff;                    /* FEC + 0x0C8 */
  70         u32 x_data;                     /* FEC + 0x0CC */
  71         u32 x_status;                   /* FEC + 0x0D0 */
  72         u32 x_mib;                      /* FEC + 0x0D4 */
  73         u32 x_test;                     /* FEC + 0x0D8 */
  74         u32 fdxfc_da1;                  /* FEC + 0x0DC */
  75         u32 fdxfc_da2;                  /* FEC + 0x0E0 */
  76         u32 paddr1;                     /* FEC + 0x0E4 */
  77         u32 paddr2;                     /* FEC + 0x0E8 */
  78         u32 op_pause;                   /* FEC + 0x0EC */
  79
  80         u32 reserved5[4];               /* FEC + 0x0F0-0FC */
  81         u32 instr_reg;                  /* FEC + 0x100 */
  82         u32 context_reg;                /* FEC + 0x104 */
  83         u32 test_cntrl;                 /* FEC + 0x108 */
  84         u32 acc_reg;                    /* FEC + 0x10C */
  85         u32 ones;                       /* FEC + 0x110 */
  86         u32 zeros;                      /* FEC + 0x114 */
  87         u32 iaddr1;                     /* FEC + 0x118 */
  88         u32 iaddr2;                     /* FEC + 0x11C */
  89         u32 gaddr1;                     /* FEC + 0x120 */
  90         u32 gaddr2;                     /* FEC + 0x124 */
  91         u32 random;                     /* FEC + 0x128 */
  92         u32 rand1;                      /* FEC + 0x12C */
  93         u32 tmp;                        /* FEC + 0x130 */
  94
  95         u32 reserved6[3];               /* FEC + 0x134-13C */
  96         u32 fifo_id;                    /* FEC + 0x140 */
  97         u32 x_wmrk;                     /* FEC + 0x144 */
  98         u32 fcntrl;                     /* FEC + 0x148 */
  99         u32 r_bound;                    /* FEC + 0x14C */
 100         u32 r_fstart;                   /* FEC + 0x150 */
 101         u32 r_count;                    /* FEC + 0x154 */
 102         u32 r_lag;                      /* FEC + 0x158 */
 103         u32 r_read;                     /* FEC + 0x15C */
 104         u32 r_write;                    /* FEC + 0x160 */
 105         u32 x_count;                    /* FEC + 0x164 */
 106         u32 x_lag;                      /* FEC + 0x168 */
 107         u32 x_retry;                    /* FEC + 0x16C */
 108         u32 x_write;                    /* FEC + 0x170 */
 109         u32 x_read;                     /* FEC + 0x174 */
 110
 111         u32 reserved7[2];               /* FEC + 0x178-17C */
 112         u32 fm_cntrl;                   /* FEC + 0x180 */
 113         u32 rfifo_data;                 /* FEC + 0x184 */
 114         u32 rfifo_status;               /* FEC + 0x188 */
 115         u32 rfifo_cntrl;                /* FEC + 0x18C */
 116         u32 rfifo_lrf_ptr;              /* FEC + 0x190 */
 117         u32 rfifo_lwf_ptr;              /* FEC + 0x194 */
 118         u32 rfifo_alarm;                /* FEC + 0x198 */
 119         u32 rfifo_rdptr;                /* FEC + 0x19C */
 120         u32 rfifo_wrptr;                /* FEC + 0x1A0 */
 121         u32 tfifo_data;                 /* FEC + 0x1A4 */
 122         u32 tfifo_status;               /* FEC + 0x1A8 */
 123         u32 tfifo_cntrl;                /* FEC + 0x1AC */
 124         u32 tfifo_lrf_ptr;              /* FEC + 0x1B0 */
 125         u32 tfifo_lwf_ptr;              /* FEC + 0x1B4 */
 126         u32 tfifo_alarm;                /* FEC + 0x1B8 */
 127         u32 tfifo_rdptr;                /* FEC + 0x1BC */
 128         u32 tfifo_wrptr;                /* FEC + 0x1C0 */
 129
 130         u32 reset_cntrl;                /* FEC + 0x1C4 */
 131         u32 xmit_fsm;                   /* FEC + 0x1C8 */
 132
 133         u32 reserved8[3];               /* FEC + 0x1CC-1D4 */
 134         u32 rdes_data0;                 /* FEC + 0x1D8 */
 135         u32 rdes_data1;                 /* FEC + 0x1DC */
 136         u32 r_length;                   /* FEC + 0x1E0 */
 137         u32 x_length;                   /* FEC + 0x1E4 */
 138         u32 x_addr;                     /* FEC + 0x1E8 */
 139         u32 cdes_data;                  /* FEC + 0x1EC */
 140         u32 status;                     /* FEC + 0x1F0 */
 141         u32 dma_control;                /* FEC + 0x1F4 */
 142         u32 des_cmnd;                   /* FEC + 0x1F8 */
 143         u32 data;                       /* FEC + 0x1FC */
 144
 145         u32 rmon_t_drop;                /* FEC + 0x200 */
 146         u32 rmon_t_packets;             /* FEC + 0x204 */
 147         u32 rmon_t_bc_pkt;              /* FEC + 0x208 */
 148         u32 rmon_t_mc_pkt;              /* FEC + 0x20C */
 149         u32 rmon_t_crc_align;           /* FEC + 0x210 */
 150         u32 rmon_t_undersize;           /* FEC + 0x214 */
 151         u32 rmon_t_oversize;            /* FEC + 0x218 */
 152         u32 rmon_t_frag;                /* FEC + 0x21C */
 153         u32 rmon_t_jab;                 /* FEC + 0x220 */
 154         u32 rmon_t_col;                 /* FEC + 0x224 */
 155         u32 rmon_t_p64;                 /* FEC + 0x228 */
 156         u32 rmon_t_p65to127;            /* FEC + 0x22C */
 157         u32 rmon_t_p128to255;           /* FEC + 0x230 */
 158         u32 rmon_t_p256to511;           /* FEC + 0x234 */
 159         u32 rmon_t_p512to1023;          /* FEC + 0x238 */
 160         u32 rmon_t_p1024to2047;         /* FEC + 0x23C */
 161         u32 rmon_t_p_gte2048;           /* FEC + 0x240 */
 162         u32 rmon_t_octets;              /* FEC + 0x244 */
 163         u32 ieee_t_drop;                /* FEC + 0x248 */
 164         u32 ieee_t_frame_ok;            /* FEC + 0x24C */
 165         u32 ieee_t_1col;                /* FEC + 0x250 */
 166         u32 ieee_t_mcol;                /* FEC + 0x254 */
 167         u32 ieee_t_def;                 /* FEC + 0x258 */
 168         u32 ieee_t_lcol;                /* FEC + 0x25C */
 169         u32 ieee_t_excol;               /* FEC + 0x260 */
 170         u32 ieee_t_macerr;              /* FEC + 0x264 */
 171         u32 ieee_t_cserr;               /* FEC + 0x268 */
 172         u32 ieee_t_sqe;                 /* FEC + 0x26C */
 173         u32 t_fdxfc;                    /* FEC + 0x270 */
 174         u32 ieee_t_octets_ok;           /* FEC + 0x274 */
 175
 176         u32 reserved9[2];               /* FEC + 0x278-27C */
 177         u32 rmon_r_drop;                /* FEC + 0x280 */
 178         u32 rmon_r_packets;             /* FEC + 0x284 */
 179         u32 rmon_r_bc_pkt;              /* FEC + 0x288 */
 180         u32 rmon_r_mc_pkt;              /* FEC + 0x28C */
 181         u32 rmon_r_crc_align;           /* FEC + 0x290 */
 182         u32 rmon_r_undersize;           /* FEC + 0x294 */
 183         u32 rmon_r_oversize;            /* FEC + 0x298 */
 184         u32 rmon_r_frag;                /* FEC + 0x29C */
 185         u32 rmon_r_jab;                 /* FEC + 0x2A0 */
 186
 187         u32 rmon_r_resvd_0;             /* FEC + 0x2A4 */
 188
 189         u32 rmon_r_p64;                 /* FEC + 0x2A8 */
 190         u32 rmon_r_p65to127;            /* FEC + 0x2AC */
 191         u32 rmon_r_p128to255;           /* FEC + 0x2B0 */
 192         u32 rmon_r_p256to511;           /* FEC + 0x2B4 */
 193         u32 rmon_r_p512to1023;          /* FEC + 0x2B8 */
 194         u32 rmon_r_p1024to2047;         /* FEC + 0x2BC */
 195         u32 rmon_r_p_gte2048;           /* FEC + 0x2C0 */
 196         u32 rmon_r_octets;              /* FEC + 0x2C4 */
 197         u32 ieee_r_drop;                /* FEC + 0x2C8 */
 198         u32 ieee_r_frame_ok;            /* FEC + 0x2CC */
 199         u32 ieee_r_crc;                 /* FEC + 0x2D0 */
 200         u32 ieee_r_align;               /* FEC + 0x2D4 */
 201         u32 r_macerr;                   /* FEC + 0x2D8 */
 202         u32 r_fdxfc;                    /* FEC + 0x2DC */
 203         u32 ieee_r_octets_ok;           /* FEC + 0x2E0 */
 204
 205         u32 reserved10[7];              /* FEC + 0x2E4-2FC */
 206
 207         u32 reserved11[64];             /* FEC + 0x300-3FF */
 208 };
 209
 210 #define FEC_MIB_DISABLE                 0x80000000
 211
 212 #define FEC_IEVENT_HBERR                0x80000000
 213 #define FEC_IEVENT_BABR                 0x40000000
 214 #define FEC_IEVENT_BABT                 0x20000000
 215 #define FEC_IEVENT_GRA                  0x10000000
 216 #define FEC_IEVENT_TFINT                0x08000000
 217 #define FEC_IEVENT_MII                  0x00800000
 218 #define FEC_IEVENT_LATE_COL             0x00200000
 219 #define FEC_IEVENT_COL_RETRY_LIM        0x00100000
 220 #define FEC_IEVENT_XFIFO_UN             0x00080000
 221 #define FEC_IEVENT_XFIFO_ERROR          0x00040000
 222 #define FEC_IEVENT_RFIFO_ERROR          0x00020000
 223
 224 #define FEC_IMASK_HBERR                 0x80000000
 225 #define FEC_IMASK_BABR                  0x40000000
 226 #define FEC_IMASK_BABT                  0x20000000
 227 #define FEC_IMASK_GRA                   0x10000000
 228 #define FEC_IMASK_MII                   0x00800000
 229 #define FEC_IMASK_LATE_COL              0x00200000
 230 #define FEC_IMASK_COL_RETRY_LIM         0x00100000
 231 #define FEC_IMASK_XFIFO_UN              0x00080000
 232 #define FEC_IMASK_XFIFO_ERROR           0x00040000
 233 #define FEC_IMASK_RFIFO_ERROR           0x00020000
 234
 235 /* all but MII, which is enabled separately */
 236 #define FEC_IMASK_ENABLE        (FEC_IMASK_HBERR | FEC_IMASK_BABR | \
 237                 FEC_IMASK_BABT | FEC_IMASK_GRA | FEC_IMASK_LATE_COL | \
 238                 FEC_IMASK_COL_RETRY_LIM | FEC_IMASK_XFIFO_UN | \
 239                 FEC_IMASK_XFIFO_ERROR | FEC_IMASK_RFIFO_ERROR)
 240
 241 #define FEC_RCNTRL_MAX_FL_SHIFT         16
 242 #define FEC_RCNTRL_LOOP                 0x01
 243 #define FEC_RCNTRL_DRT                  0x02
 244 #define FEC_RCNTRL_MII_MODE             0x04
 245 #define FEC_RCNTRL_PROM                 0x08
 246 #define FEC_RCNTRL_BC_REJ               0x10
 247 #define FEC_RCNTRL_FCE                  0x20
 248
 249 #define FEC_TCNTRL_GTS                  0x00000001
 250 #define FEC_TCNTRL_HBC                  0x00000002
 251 #define FEC_TCNTRL_FDEN                 0x00000004
 252 #define FEC_TCNTRL_TFC_PAUSE            0x00000008
 253 #define FEC_TCNTRL_RFC_PAUSE            0x00000010
 254
 255 #define FEC_ECNTRL_RESET                0x00000001
 256 #define FEC_ECNTRL_ETHER_EN             0x00000002
 257
 258 #define FEC_MII_DATA_ST                 0x40000000      /* Start frame */
 259 #define FEC_MII_DATA_OP_RD              0x20000000      /* Perform read */
 260 #define FEC_MII_DATA_OP_WR              0x10000000      /* Perform write */
 261 #define FEC_MII_DATA_PA_MSK             0x0f800000      /* PHY Address mask */
 262 #define FEC_MII_DATA_RA_MSK             0x007c0000      /* PHY Register mask */
 263 #define FEC_MII_DATA_TA                 0x00020000      /* Turnaround */
 264 #define FEC_MII_DATA_DATAMSK            0x0000ffff      /* PHY data mask */
 265
 266 #define FEC_MII_READ_FRAME      (FEC_MII_DATA_ST | FEC_MII_DATA_OP_RD | FEC_MII_DATA_TA)
 267 #define FEC_MII_WRITE_FRAME     (FEC_MII_DATA_ST | FEC_MII_DATA_OP_WR | FEC_MII_DATA_TA)
 268
 269 #define FEC_MII_DATA_RA_SHIFT           0x12            /* MII reg addr bits */
 270 #define FEC_MII_DATA_PA_SHIFT           0x17            /* MII PHY addr bits */
 271
 272 #define FEC_PADDR2_TYPE                 0x8808
 273
 274 #define FEC_OP_PAUSE_OPCODE             0x00010000
 275
 276 #define FEC_FIFO_WMRK_256B              0x3
 277
 278 #define FEC_FIFO_STATUS_ERR             0x00400000
 279 #define FEC_FIFO_STATUS_UF              0x00200000
 280 #define FEC_FIFO_STATUS_OF              0x00100000
 281
 282 #define FEC_FIFO_CNTRL_FRAME            0x08000000
 283 #define FEC_FIFO_CNTRL_LTG_7            0x07000000
 284
 285 #define FEC_RESET_CNTRL_RESET_FIFO      0x02000000
 286 #define FEC_RESET_CNTRL_ENABLE_IS_RESET 0x01000000
 287
 288 #define FEC_XMIT_FSM_APPEND_CRC         0x02000000
 289 #define FEC_XMIT_FSM_ENABLE_CRC         0x01000000
 290
 291
 292 extern struct of_platform_driver mpc52xx_fec_mdio_driver;
 293
 294 #endif  /* __DRIVERS_NET_MPC52XX_FEC_H__ */