include/hw/net/imx_fec.h

   1 /*
   2  * i.MX FEC/ENET Ethernet Controller emulation.
   3  *
   4  * Copyright (c) 2013 Jean-Christophe Dubois. <jcd@tribudubois.net>
   5  *
   6  * Based on Coldfire Fast Ethernet Controller emulation.
   7  *
   8  * Copyright (c) 2007 CodeSourcery.
   9  *
  10  *  This program is free software; you can redistribute it and/or modify it
  11  *  under the terms of the GNU General Public License as published by the
  12  *  Free Software Foundation; either version 2 of the License, or
  13  *  (at your option) any later version.
  14  *
  15  *  This program is distributed in the hope that it will be useful, but WITHOUT
  16  *  ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  17  *  FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
  18  *  for more details.
  19  *
  20  *  You should have received a copy of the GNU General Public License along
  21  *  with this program; if not, see <http://www.gnu.org/licenses/>.
  22  */
  23
  24 #ifndef IMX_FEC_H
  25 #define IMX_FEC_H
  26
  27 #define TYPE_IMX_FEC "imx.fec"
  28 #define IMX_FEC(obj) OBJECT_CHECK(IMXFECState, (obj), TYPE_IMX_FEC)
  29
  30 #define TYPE_IMX_ENET "imx.enet"
  31
  32 #include "hw/sysbus.h"
  33 #include "net/net.h"
  34
  35 #define ENET_EIR               1
  36 #define ENET_EIMR              2
  37 #define ENET_RDAR              4
  38 #define ENET_TDAR              5
  39 #define ENET_ECR               9
  40 #define ENET_MMFR              16
  41 #define ENET_MSCR              17
  42 #define ENET_MIBC              25
  43 #define ENET_RCR               33
  44 #define ENET_TCR               49
  45 #define ENET_PALR              57
  46 #define ENET_PAUR              58
  47 #define ENET_OPD               59
  48 #define ENET_IAUR              70
  49 #define ENET_IALR              71
  50 #define ENET_GAUR              72
  51 #define ENET_GALR              73
  52 #define ENET_TFWR              81
  53 #define ENET_FRBR              83
  54 #define ENET_FRSR              84
  55 #define ENET_TDSR1             89
  56 #define ENET_TDSR2             92
  57 #define ENET_RDSR              96
  58 #define ENET_TDSR              97
  59 #define ENET_MRBR              98
  60 #define ENET_RSFL              100
  61 #define ENET_RSEM              101
  62 #define ENET_RAEM              102
  63 #define ENET_RAFL              103
  64 #define ENET_TSEM              104
  65 #define ENET_TAEM              105
  66 #define ENET_TAFL              106
  67 #define ENET_TIPG              107
  68 #define ENET_FTRL              108
  69 #define ENET_TACC              112
  70 #define ENET_RACC              113
  71 #define ENET_TDAR1             121
  72 #define ENET_TDAR2             123
  73 #define ENET_MIIGSK_CFGR       192
  74 #define ENET_MIIGSK_ENR        194
  75 #define ENET_ATCR              256
  76 #define ENET_ATVR              257
  77 #define ENET_ATOFF             258
  78 #define ENET_ATPER             259
  79 #define ENET_ATCOR             260
  80 #define ENET_ATINC             261
  81 #define ENET_ATSTMP            262
  82 #define ENET_TGSR              385
  83 #define ENET_TCSR0             386
  84 #define ENET_TCCR0             387
  85 #define ENET_TCSR1             388
  86 #define ENET_TCCR1             389
  87 #define ENET_TCSR2             390
  88 #define ENET_TCCR2             391
  89 #define ENET_TCSR3             392
  90 #define ENET_TCCR3             393
  91 #define ENET_MAX               400
  92
  93
  94 /* EIR and EIMR */
  95 #define ENET_INT_HB            (1 << 31)
  96 #define ENET_INT_BABR          (1 << 30)
  97 #define ENET_INT_BABT          (1 << 29)
  98 #define ENET_INT_GRA           (1 << 28)
  99 #define ENET_INT_TXF           (1 << 27)
 100 #define ENET_INT_TXB           (1 << 26)
 101 #define ENET_INT_RXF           (1 << 25)
 102 #define ENET_INT_RXB           (1 << 24)
 103 #define ENET_INT_MII           (1 << 23)
 104 #define ENET_INT_EBERR         (1 << 22)
 105 #define ENET_INT_LC            (1 << 21)
 106 #define ENET_INT_RL            (1 << 20)
 107 #define ENET_INT_UN            (1 << 19)
 108 #define ENET_INT_PLR           (1 << 18)
 109 #define ENET_INT_WAKEUP        (1 << 17)
 110 #define ENET_INT_TS_AVAIL      (1 << 16)
 111 #define ENET_INT_TS_TIMER      (1 << 15)
 112 #define ENET_INT_TXF2          (1 <<  7)
 113 #define ENET_INT_TXB2          (1 <<  6)
 114 #define ENET_INT_TXF1          (1 <<  3)
 115 #define ENET_INT_TXB1          (1 <<  2)
 116
 117 #define ENET_INT_MAC           (ENET_INT_HB | ENET_INT_BABR | ENET_INT_BABT | \
 118                                 ENET_INT_GRA | ENET_INT_TXF | ENET_INT_TXB | \
 119                                 ENET_INT_RXF | ENET_INT_RXB | ENET_INT_MII | \
 120                                 ENET_INT_EBERR | ENET_INT_LC | ENET_INT_RL | \
 121                                 ENET_INT_UN | ENET_INT_PLR | ENET_INT_WAKEUP | \
 122                                 ENET_INT_TS_AVAIL | ENET_INT_TXF1 | \
 123                                 ENET_INT_TXB1 | ENET_INT_TXF2 | ENET_INT_TXB2)
 124
 125 /* RDAR */
 126 #define ENET_RDAR_RDAR         (1 << 24)
 127
 128 /* TDAR */
 129 #define ENET_TDAR_TDAR         (1 << 24)
 130
 131 /* ECR */
 132 #define ENET_ECR_RESET         (1 << 0)
 133 #define ENET_ECR_ETHEREN       (1 << 1)
 134 #define ENET_ECR_MAGICEN       (1 << 2)
 135 #define ENET_ECR_SLEEP         (1 << 3)
 136 #define ENET_ECR_EN1588        (1 << 4)
 137 #define ENET_ECR_SPEED         (1 << 5)
 138 #define ENET_ECR_DBGEN         (1 << 6)
 139 #define ENET_ECR_STOPEN        (1 << 7)
 140 #define ENET_ECR_DSBWP         (1 << 8)
 141
 142 /* MIBC */
 143 #define ENET_MIBC_MIB_DIS      (1 << 31)
 144 #define ENET_MIBC_MIB_IDLE     (1 << 30)
 145 #define ENET_MIBC_MIB_CLEAR    (1 << 29)
 146
 147 /* RCR */
 148 #define ENET_RCR_LOOP          (1 << 0)
 149 #define ENET_RCR_DRT           (1 << 1)
 150 #define ENET_RCR_MII_MODE      (1 << 2)
 151 #define ENET_RCR_PROM          (1 << 3)
 152 #define ENET_RCR_BC_REJ        (1 << 4)
 153 #define ENET_RCR_FCE           (1 << 5)
 154 #define ENET_RCR_RGMII_EN      (1 << 6)
 155 #define ENET_RCR_RMII_MODE     (1 << 8)
 156 #define ENET_RCR_RMII_10T      (1 << 9)
 157 #define ENET_RCR_PADEN         (1 << 12)
 158 #define ENET_RCR_PAUFWD        (1 << 13)
 159 #define ENET_RCR_CRCFWD        (1 << 14)
 160 #define ENET_RCR_CFEN          (1 << 15)
 161 #define ENET_RCR_MAX_FL_SHIFT  (16)
 162 #define ENET_RCR_MAX_FL_LENGTH (14)
 163 #define ENET_RCR_NLC           (1 << 30)
 164 #define ENET_RCR_GRS           (1 << 31)
 165
 166 #define ENET_MAX_FRAME_SIZE    (1 << ENET_RCR_MAX_FL_LENGTH)
 167
 168 /* TCR */
 169 #define ENET_TCR_GTS           (1 << 0)
 170 #define ENET_TCR_FDEN          (1 << 2)
 171 #define ENET_TCR_TFC_PAUSE     (1 << 3)
 172 #define ENET_TCR_RFC_PAUSE     (1 << 4)
 173 #define ENET_TCR_ADDSEL_SHIFT  (5)
 174 #define ENET_TCR_ADDSEL_LENGTH (3)
 175 #define ENET_TCR_CRCFWD        (1 << 9)
 176
 177 /* RDSR */
 178 #define ENET_TWFR_TFWR_SHIFT   (0)
 179 #define ENET_TWFR_TFWR_LENGTH  (6)
 180 #define ENET_TWFR_STRFWD       (1 << 8)
 181
 182 #define ENET_RACC_SHIFT16      BIT(7)
 183
 184 /* Buffer Descriptor.  */
 185 typedef struct {
 186     uint16_t length;
 187     uint16_t flags;
 188     uint32_t data;
 189 } IMXFECBufDesc;
 190
 191 #define ENET_BD_R              (1 << 15)
 192 #define ENET_BD_E              (1 << 15)
 193 #define ENET_BD_O1             (1 << 14)
 194 #define ENET_BD_W              (1 << 13)
 195 #define ENET_BD_O2             (1 << 12)
 196 #define ENET_BD_L              (1 << 11)
 197 #define ENET_BD_TC             (1 << 10)
 198 #define ENET_BD_ABC            (1 << 9)
 199 #define ENET_BD_M              (1 << 8)
 200 #define ENET_BD_BC             (1 << 7)
 201 #define ENET_BD_MC             (1 << 6)
 202 #define ENET_BD_LG             (1 << 5)
 203 #define ENET_BD_NO             (1 << 4)
 204 #define ENET_BD_CR             (1 << 2)
 205 #define ENET_BD_OV             (1 << 1)
 206 #define ENET_BD_TR             (1 << 0)
 207
 208 typedef struct {
 209     uint16_t length;
 210     uint16_t flags;
 211     uint32_t data;
 212     uint16_t status;
 213     uint16_t option;
 214     uint16_t checksum;
 215     uint16_t head_proto;
 216     uint32_t last_buffer;
 217     uint32_t timestamp;
 218     uint32_t reserved[2];
 219 } IMXENETBufDesc;
 220
 221 #define ENET_BD_ME             (1 << 15)
 222 #define ENET_BD_TX_INT         (1 << 14)
 223 #define ENET_BD_TS             (1 << 13)
 224 #define ENET_BD_PINS           (1 << 12)
 225 #define ENET_BD_IINS           (1 << 11)
 226 #define ENET_BD_PE             (1 << 10)
 227 #define ENET_BD_CE             (1 << 9)
 228 #define ENET_BD_UC             (1 << 8)
 229 #define ENET_BD_RX_INT         (1 << 7)
 230
 231 #define ENET_BD_TXE            (1 << 15)
 232 #define ENET_BD_UE             (1 << 13)
 233 #define ENET_BD_EE             (1 << 12)
 234 #define ENET_BD_FE             (1 << 11)
 235 #define ENET_BD_LCE            (1 << 10)
 236 #define ENET_BD_OE             (1 << 9)
 237 #define ENET_BD_TSE            (1 << 8)
 238 #define ENET_BD_ICE            (1 << 5)
 239 #define ENET_BD_PCR            (1 << 4)
 240 #define ENET_BD_VLAN           (1 << 2)
 241 #define ENET_BD_IPV6           (1 << 1)
 242 #define ENET_BD_FRAG           (1 << 0)
 243
 244 #define ENET_BD_BDU            (1 << 31)
 245
 246 #define ENET_TX_RING_NUM       3
 247
 248 #define FSL_IMX25_FEC_SIZE      0x4000
 249
 250 typedef struct IMXFECState {
 251     /*< private >*/
 252     SysBusDevice parent_obj;
 253
 254     /*< public >*/
 255     NICState *nic;
 256     NICConf conf;
 257     qemu_irq irq[2];
 258     MemoryRegion iomem;
 259
 260     uint32_t regs[ENET_MAX];
 261     uint32_t rx_descriptor;
 262
 263     uint32_t tx_descriptor[ENET_TX_RING_NUM];
 264     uint32_t tx_ring_num;
 265
 266     uint32_t phy_status;
 267     uint32_t phy_control;
 268     uint32_t phy_advertise;
 269     uint32_t phy_int;
 270     uint32_t phy_int_mask;
 271     uint32_t phy_num;
 272
 273     bool is_fec;
 274
 275     /* Buffer used to assemble a Tx frame */
 276     uint8_t frame[ENET_MAX_FRAME_SIZE];
 277 } IMXFECState;
 278
 279 #endif