1 /* 2 * Atmel MACB Ethernet Controller driver 3 * 4 * Copyright (C) 2004-2006 Atmel Corporation 5 * 6 * This program is free software; you can redistribute it and/or modify 7 * it under the terms of the GNU General Public License version 2 as 8 * published by the Free Software Foundation. 9 */ 10 #ifndef _MACB_H 11 #define _MACB_H 12 13 #define MACB_GREGS_NBR 16 14 #define MACB_GREGS_VERSION 2 15 #define MACB_MAX_QUEUES 8 16 17 /* MACB register offsets */ 18 #define MACB_NCR 0x0000 /* Network Control */ 19 #define MACB_NCFGR 0x0004 /* Network Config */ 20 #define MACB_NSR 0x0008 /* Network Status */ 21 #define MACB_TAR 0x000c /* AT91RM9200 only */ 22 #define MACB_TCR 0x0010 /* AT91RM9200 only */ 23 #define MACB_TSR 0x0014 /* Transmit Status */ 24 #define MACB_RBQP 0x0018 /* RX Q Base Address */ 25 #define MACB_TBQP 0x001c /* TX Q Base Address */ 26 #define MACB_RSR 0x0020 /* Receive Status */ 27 #define MACB_ISR 0x0024 /* Interrupt Status */ 28 #define MACB_IER 0x0028 /* Interrupt Enable */ 29 #define MACB_IDR 0x002c /* Interrupt Disable */ 30 #define MACB_IMR 0x0030 /* Interrupt Mask */ 31 #define MACB_MAN 0x0034 /* PHY Maintenance */ 32 #define MACB_PTR 0x0038 33 #define MACB_PFR 0x003c 34 #define MACB_FTO 0x0040 35 #define MACB_SCF 0x0044 36 #define MACB_MCF 0x0048 37 #define MACB_FRO 0x004c 38 #define MACB_FCSE 0x0050 39 #define MACB_ALE 0x0054 40 #define MACB_DTF 0x0058 41 #define MACB_LCOL 0x005c 42 #define MACB_EXCOL 0x0060 43 #define MACB_TUND 0x0064 44 #define MACB_CSE 0x0068 45 #define MACB_RRE 0x006c 46 #define MACB_ROVR 0x0070 47 #define MACB_RSE 0x0074 48 #define MACB_ELE 0x0078 49 #define MACB_RJA 0x007c 50 #define MACB_USF 0x0080 51 #define MACB_STE 0x0084 52 #define MACB_RLE 0x0088 53 #define MACB_TPF 0x008c 54 #define MACB_HRB 0x0090 55 #define MACB_HRT 0x0094 56 #define MACB_SA1B 0x0098 57 #define MACB_SA1T 0x009c 58 #define MACB_SA2B 0x00a0 59 #define MACB_SA2T 0x00a4 60 #define MACB_SA3B 0x00a8 61 #define MACB_SA3T 0x00ac 62 #define MACB_SA4B 0x00b0 63 #define MACB_SA4T 0x00b4 64 #define MACB_TID 0x00b8 65 #define MACB_TPQ 0x00bc 66 #define MACB_USRIO 0x00c0 67 #define MACB_WOL 0x00c4 68 #define MACB_MID 0x00fc 69 70 /* GEM register offsets. */ 71 #define GEM_NCFGR 0x0004 /* Network Config */ 72 #define GEM_USRIO 0x000c /* User IO */ 73 #define GEM_DMACFG 0x0010 /* DMA Configuration */ 74 #define GEM_HRB 0x0080 /* Hash Bottom */ 75 #define GEM_HRT 0x0084 /* Hash Top */ 76 #define GEM_SA1B 0x0088 /* Specific1 Bottom */ 77 #define GEM_SA1T 0x008C /* Specific1 Top */ 78 #define GEM_SA2B 0x0090 /* Specific2 Bottom */ 79 #define GEM_SA2T 0x0094 /* Specific2 Top */ 80 #define GEM_SA3B 0x0098 /* Specific3 Bottom */ 81 #define GEM_SA3T 0x009C /* Specific3 Top */ 82 #define GEM_SA4B 0x00A0 /* Specific4 Bottom */ 83 #define GEM_SA4T 0x00A4 /* Specific4 Top */ 84 #define GEM_OTX 0x0100 /* Octets transmitted */ 85 #define GEM_OCTTXL 0x0100 /* Octets transmitted [31:0] */ 86 #define GEM_OCTTXH 0x0104 /* Octets transmitted [47:32] */ 87 #define GEM_TXCNT 0x0108 /* Frames Transmitted counter */ 88 #define GEM_TXBCCNT 0x010c /* Broadcast Frames counter */ 89 #define GEM_TXMCCNT 0x0110 /* Multicast Frames counter */ 90 #define GEM_TXPAUSECNT 0x0114 /* Pause Frames Transmitted Counter */ 91 #define GEM_TX64CNT 0x0118 /* 64 byte Frames TX counter */ 92 #define GEM_TX65CNT 0x011c /* 65-127 byte Frames TX counter */ 93 #define GEM_TX128CNT 0x0120 /* 128-255 byte Frames TX counter */ 94 #define GEM_TX256CNT 0x0124 /* 256-511 byte Frames TX counter */ 95 #define GEM_TX512CNT 0x0128 /* 512-1023 byte Frames TX counter */ 96 #define GEM_TX1024CNT 0x012c /* 1024-1518 byte Frames TX counter */ 97 #define GEM_TX1519CNT 0x0130 /* 1519+ byte Frames TX counter */ 98 #define GEM_TXURUNCNT 0x0134 /* TX under run error counter */ 99 #define GEM_SNGLCOLLCNT 0x0138 /* Single Collision Frame Counter */ 100 #define GEM_MULTICOLLCNT 0x013c /* Multiple Collision Frame Counter */ 101 #define GEM_EXCESSCOLLCNT 0x0140 /* Excessive Collision Frame Counter */ 102 #define GEM_LATECOLLCNT 0x0144 /* Late Collision Frame Counter */ 103 #define GEM_TXDEFERCNT 0x0148 /* Deferred Transmission Frame Counter */ 104 #define GEM_TXCSENSECNT 0x014c /* Carrier Sense Error Counter */ 105 #define GEM_ORX 0x0150 /* Octets received */ 106 #define GEM_OCTRXL 0x0150 /* Octets received [31:0] */ 107 #define GEM_OCTRXH 0x0154 /* Octets received [47:32] */ 108 #define GEM_RXCNT 0x0158 /* Frames Received Counter */ 109 #define GEM_RXBROADCNT 0x015c /* Broadcast Frames Received Counter */ 110 #define GEM_RXMULTICNT 0x0160 /* Multicast Frames Received Counter */ 111 #define GEM_RXPAUSECNT 0x0164 /* Pause Frames Received Counter */ 112 #define GEM_RX64CNT 0x0168 /* 64 byte Frames RX Counter */ 113 #define GEM_RX65CNT 0x016c /* 65-127 byte Frames RX Counter */ 114 #define GEM_RX128CNT 0x0170 /* 128-255 byte Frames RX Counter */ 115 #define GEM_RX256CNT 0x0174 /* 256-511 byte Frames RX Counter */ 116 #define GEM_RX512CNT 0x0178 /* 512-1023 byte Frames RX Counter */ 117 #define GEM_RX1024CNT 0x017c /* 1024-1518 byte Frames RX Counter */ 118 #define GEM_RX1519CNT 0x0180 /* 1519+ byte Frames RX Counter */ 119 #define GEM_RXUNDRCNT 0x0184 /* Undersize Frames Received Counter */ 120 #define GEM_RXOVRCNT 0x0188 /* Oversize Frames Received Counter */ 121 #define GEM_RXJABCNT 0x018c /* Jabbers Received Counter */ 122 #define GEM_RXFCSCNT 0x0190 /* Frame Check Sequence Error Counter */ 123 #define GEM_RXLENGTHCNT 0x0194 /* Length Field Error Counter */ 124 #define GEM_RXSYMBCNT 0x0198 /* Symbol Error Counter */ 125 #define GEM_RXALIGNCNT 0x019c /* Alignment Error Counter */ 126 #define GEM_RXRESERRCNT 0x01a0 /* Receive Resource Error Counter */ 127 #define GEM_RXORCNT 0x01a4 /* Receive Overrun Counter */ 128 #define GEM_RXIPCCNT 0x01a8 /* IP header Checksum Error Counter */ 129 #define GEM_RXTCPCCNT 0x01ac /* TCP Checksum Error Counter */ 130 #define GEM_RXUDPCCNT 0x01b0 /* UDP Checksum Error Counter */ 131 #define GEM_DCFG1 0x0280 /* Design Config 1 */ 132 #define GEM_DCFG2 0x0284 /* Design Config 2 */ 133 #define GEM_DCFG3 0x0288 /* Design Config 3 */ 134 #define GEM_DCFG4 0x028c /* Design Config 4 */ 135 #define GEM_DCFG5 0x0290 /* Design Config 5 */ 136 #define GEM_DCFG6 0x0294 /* Design Config 6 */ 137 #define GEM_DCFG7 0x0298 /* Design Config 7 */ 138 139 #define GEM_ISR(hw_q) (0x0400 + ((hw_q) << 2)) 140 #define GEM_TBQP(hw_q) (0x0440 + ((hw_q) << 2)) 141 #define GEM_RBQP(hw_q) (0x0480 + ((hw_q) << 2)) 142 #define GEM_IER(hw_q) (0x0600 + ((hw_q) << 2)) 143 #define GEM_IDR(hw_q) (0x0620 + ((hw_q) << 2)) 144 #define GEM_IMR(hw_q) (0x0640 + ((hw_q) << 2)) 145 146 /* Bitfields in NCR */ 147 #define MACB_LB_OFFSET 0 /* reserved */ 148 #define MACB_LB_SIZE 1 149 #define MACB_LLB_OFFSET 1 /* Loop back local */ 150 #define MACB_LLB_SIZE 1 151 #define MACB_RE_OFFSET 2 /* Receive enable */ 152 #define MACB_RE_SIZE 1 153 #define MACB_TE_OFFSET 3 /* Transmit enable */ 154 #define MACB_TE_SIZE 1 155 #define MACB_MPE_OFFSET 4 /* Management port enable */ 156 #define MACB_MPE_SIZE 1 157 #define MACB_CLRSTAT_OFFSET 5 /* Clear stats regs */ 158 #define MACB_CLRSTAT_SIZE 1 159 #define MACB_INCSTAT_OFFSET 6 /* Incremental stats regs */ 160 #define MACB_INCSTAT_SIZE 1 161 #define MACB_WESTAT_OFFSET 7 /* Write enable stats regs */ 162 #define MACB_WESTAT_SIZE 1 163 #define MACB_BP_OFFSET 8 /* Back pressure */ 164 #define MACB_BP_SIZE 1 165 #define MACB_TSTART_OFFSET 9 /* Start transmission */ 166 #define MACB_TSTART_SIZE 1 167 #define MACB_THALT_OFFSET 10 /* Transmit halt */ 168 #define MACB_THALT_SIZE 1 169 #define MACB_NCR_TPF_OFFSET 11 /* Transmit pause frame */ 170 #define MACB_NCR_TPF_SIZE 1 171 #define MACB_TZQ_OFFSET 12 /* Transmit zero quantum pause frame */ 172 #define MACB_TZQ_SIZE 1 173 174 /* Bitfields in NCFGR */ 175 #define MACB_SPD_OFFSET 0 /* Speed */ 176 #define MACB_SPD_SIZE 1 177 #define MACB_FD_OFFSET 1 /* Full duplex */ 178 #define MACB_FD_SIZE 1 179 #define MACB_BIT_RATE_OFFSET 2 /* Discard non-VLAN frames */ 180 #define MACB_BIT_RATE_SIZE 1 181 #define MACB_JFRAME_OFFSET 3 /* reserved */ 182 #define MACB_JFRAME_SIZE 1 183 #define MACB_CAF_OFFSET 4 /* Copy all frames */ 184 #define MACB_CAF_SIZE 1 185 #define MACB_NBC_OFFSET 5 /* No broadcast */ 186 #define MACB_NBC_SIZE 1 187 #define MACB_NCFGR_MTI_OFFSET 6 /* Multicast hash enable */ 188 #define MACB_NCFGR_MTI_SIZE 1 189 #define MACB_UNI_OFFSET 7 /* Unicast hash enable */ 190 #define MACB_UNI_SIZE 1 191 #define MACB_BIG_OFFSET 8 /* Receive 1536 byte frames */ 192 #define MACB_BIG_SIZE 1 193 #define MACB_EAE_OFFSET 9 /* External address match enable */ 194 #define MACB_EAE_SIZE 1 195 #define MACB_CLK_OFFSET 10 196 #define MACB_CLK_SIZE 2 197 #define MACB_RTY_OFFSET 12 /* Retry test */ 198 #define MACB_RTY_SIZE 1 199 #define MACB_PAE_OFFSET 13 /* Pause enable */ 200 #define MACB_PAE_SIZE 1 201 #define MACB_RM9200_RMII_OFFSET 13 /* AT91RM9200 only */ 202 #define MACB_RM9200_RMII_SIZE 1 /* AT91RM9200 only */ 203 #define MACB_RBOF_OFFSET 14 /* Receive buffer offset */ 204 #define MACB_RBOF_SIZE 2 205 #define MACB_RLCE_OFFSET 16 /* Length field error frame discard */ 206 #define MACB_RLCE_SIZE 1 207 #define MACB_DRFCS_OFFSET 17 /* FCS remove */ 208 #define MACB_DRFCS_SIZE 1 209 #define MACB_EFRHD_OFFSET 18 210 #define MACB_EFRHD_SIZE 1 211 #define MACB_IRXFCS_OFFSET 19 212 #define MACB_IRXFCS_SIZE 1 213 214 /* GEM specific NCFGR bitfields. */ 215 #define GEM_GBE_OFFSET 10 /* Gigabit mode enable */ 216 #define GEM_GBE_SIZE 1 217 #define GEM_CLK_OFFSET 18 /* MDC clock division */ 218 #define GEM_CLK_SIZE 3 219 #define GEM_DBW_OFFSET 21 /* Data bus width */ 220 #define GEM_DBW_SIZE 2 221 #define GEM_RXCOEN_OFFSET 24 222 #define GEM_RXCOEN_SIZE 1 223 224 /* Constants for data bus width. */ 225 #define GEM_DBW32 0 /* 32 bit AMBA AHB data bus width */ 226 #define GEM_DBW64 1 /* 64 bit AMBA AHB data bus width */ 227 #define GEM_DBW128 2 /* 128 bit AMBA AHB data bus width */ 228 229 /* Bitfields in DMACFG. */ 230 #define GEM_FBLDO_OFFSET 0 /* fixed burst length for DMA */ 231 #define GEM_FBLDO_SIZE 5 232 #define GEM_ENDIA_DESC_OFFSET 6 /* endian swap mode for management descriptor access */ 233 #define GEM_ENDIA_DESC_SIZE 1 234 #define GEM_ENDIA_PKT_OFFSET 7 /* endian swap mode for packet data access */ 235 #define GEM_ENDIA_PKT_SIZE 1 236 #define GEM_RXBMS_OFFSET 8 /* RX packet buffer memory size select */ 237 #define GEM_RXBMS_SIZE 2 238 #define GEM_TXPBMS_OFFSET 10 /* TX packet buffer memory size select */ 239 #define GEM_TXPBMS_SIZE 1 240 #define GEM_TXCOEN_OFFSET 11 /* TX IP/TCP/UDP checksum gen offload */ 241 #define GEM_TXCOEN_SIZE 1 242 #define GEM_RXBS_OFFSET 16 /* DMA receive buffer size */ 243 #define GEM_RXBS_SIZE 8 244 #define GEM_DDRP_OFFSET 24 /* disc_when_no_ahb */ 245 #define GEM_DDRP_SIZE 1 246 247 248 /* Bitfields in NSR */ 249 #define MACB_NSR_LINK_OFFSET 0 /* pcs_link_state */ 250 #define MACB_NSR_LINK_SIZE 1 251 #define MACB_MDIO_OFFSET 1 /* status of the mdio_in pin */ 252 #define MACB_MDIO_SIZE 1 253 #define MACB_IDLE_OFFSET 2 /* The PHY management logic is idle */ 254 #define MACB_IDLE_SIZE 1 255 256 /* Bitfields in TSR */ 257 #define MACB_UBR_OFFSET 0 /* Used bit read */ 258 #define MACB_UBR_SIZE 1 259 #define MACB_COL_OFFSET 1 /* Collision occurred */ 260 #define MACB_COL_SIZE 1 261 #define MACB_TSR_RLE_OFFSET 2 /* Retry limit exceeded */ 262 #define MACB_TSR_RLE_SIZE 1 263 #define MACB_TGO_OFFSET 3 /* Transmit go */ 264 #define MACB_TGO_SIZE 1 265 #define MACB_BEX_OFFSET 4 /* TX frame corruption due to AHB error */ 266 #define MACB_BEX_SIZE 1 267 #define MACB_RM9200_BNQ_OFFSET 4 /* AT91RM9200 only */ 268 #define MACB_RM9200_BNQ_SIZE 1 /* AT91RM9200 only */ 269 #define MACB_COMP_OFFSET 5 /* Trnasmit complete */ 270 #define MACB_COMP_SIZE 1 271 #define MACB_UND_OFFSET 6 /* Trnasmit under run */ 272 #define MACB_UND_SIZE 1 273 274 /* Bitfields in RSR */ 275 #define MACB_BNA_OFFSET 0 /* Buffer not available */ 276 #define MACB_BNA_SIZE 1 277 #define MACB_REC_OFFSET 1 /* Frame received */ 278 #define MACB_REC_SIZE 1 279 #define MACB_OVR_OFFSET 2 /* Receive overrun */ 280 #define MACB_OVR_SIZE 1 281 282 /* Bitfields in ISR/IER/IDR/IMR */ 283 #define MACB_MFD_OFFSET 0 /* Management frame sent */ 284 #define MACB_MFD_SIZE 1 285 #define MACB_RCOMP_OFFSET 1 /* Receive complete */ 286 #define MACB_RCOMP_SIZE 1 287 #define MACB_RXUBR_OFFSET 2 /* RX used bit read */ 288 #define MACB_RXUBR_SIZE 1 289 #define MACB_TXUBR_OFFSET 3 /* TX used bit read */ 290 #define MACB_TXUBR_SIZE 1 291 #define MACB_ISR_TUND_OFFSET 4 /* Enable TX buffer under run interrupt */ 292 #define MACB_ISR_TUND_SIZE 1 293 #define MACB_ISR_RLE_OFFSET 5 /* EN retry exceeded/late coll interrupt */ 294 #define MACB_ISR_RLE_SIZE 1 295 #define MACB_TXERR_OFFSET 6 /* EN TX frame corrupt from error interrupt */ 296 #define MACB_TXERR_SIZE 1 297 #define MACB_TCOMP_OFFSET 7 /* Enable transmit complete interrupt */ 298 #define MACB_TCOMP_SIZE 1 299 #define MACB_ISR_LINK_OFFSET 9 /* Enable link change interrupt */ 300 #define MACB_ISR_LINK_SIZE 1 301 #define MACB_ISR_ROVR_OFFSET 10 /* Enable receive overrun interrupt */ 302 #define MACB_ISR_ROVR_SIZE 1 303 #define MACB_HRESP_OFFSET 11 /* Enable hrsep not OK interrupt */ 304 #define MACB_HRESP_SIZE 1 305 #define MACB_PFR_OFFSET 12 /* Enable pause frame w/ quantum interrupt */ 306 #define MACB_PFR_SIZE 1 307 #define MACB_PTZ_OFFSET 13 /* Enable pause time zero interrupt */ 308 #define MACB_PTZ_SIZE 1 309 310 /* Bitfields in MAN */ 311 #define MACB_DATA_OFFSET 0 /* data */ 312 #define MACB_DATA_SIZE 16 313 #define MACB_CODE_OFFSET 16 /* Must be written to 10 */ 314 #define MACB_CODE_SIZE 2 315 #define MACB_REGA_OFFSET 18 /* Register address */ 316 #define MACB_REGA_SIZE 5 317 #define MACB_PHYA_OFFSET 23 /* PHY address */ 318 #define MACB_PHYA_SIZE 5 319 #define MACB_RW_OFFSET 28 /* Operation. 10 is read. 01 is write. */ 320 #define MACB_RW_SIZE 2 321 #define MACB_SOF_OFFSET 30 /* Must be written to 1 for Clause 22 */ 322 #define MACB_SOF_SIZE 2 323 324 /* Bitfields in USRIO (AVR32) */ 325 #define MACB_MII_OFFSET 0 326 #define MACB_MII_SIZE 1 327 #define MACB_EAM_OFFSET 1 328 #define MACB_EAM_SIZE 1 329 #define MACB_TX_PAUSE_OFFSET 2 330 #define MACB_TX_PAUSE_SIZE 1 331 #define MACB_TX_PAUSE_ZERO_OFFSET 3 332 #define MACB_TX_PAUSE_ZERO_SIZE 1 333 334 /* Bitfields in USRIO (AT91) */ 335 #define MACB_RMII_OFFSET 0 336 #define MACB_RMII_SIZE 1 337 #define GEM_RGMII_OFFSET 0 /* GEM gigabit mode */ 338 #define GEM_RGMII_SIZE 1 339 #define MACB_CLKEN_OFFSET 1 340 #define MACB_CLKEN_SIZE 1 341 342 /* Bitfields in WOL */ 343 #define MACB_IP_OFFSET 0 344 #define MACB_IP_SIZE 16 345 #define MACB_MAG_OFFSET 16 346 #define MACB_MAG_SIZE 1 347 #define MACB_ARP_OFFSET 17 348 #define MACB_ARP_SIZE 1 349 #define MACB_SA1_OFFSET 18 350 #define MACB_SA1_SIZE 1 351 #define MACB_WOL_MTI_OFFSET 19 352 #define MACB_WOL_MTI_SIZE 1 353 354 /* Bitfields in MID */ 355 #define MACB_IDNUM_OFFSET 16 356 #define MACB_IDNUM_SIZE 12 357 #define MACB_REV_OFFSET 0 358 #define MACB_REV_SIZE 16 359 360 /* Bitfields in DCFG1. */ 361 #define GEM_IRQCOR_OFFSET 23 362 #define GEM_IRQCOR_SIZE 1 363 #define GEM_DBWDEF_OFFSET 25 364 #define GEM_DBWDEF_SIZE 3 365 366 /* Bitfields in DCFG2. */ 367 #define GEM_RX_PKT_BUFF_OFFSET 20 368 #define GEM_RX_PKT_BUFF_SIZE 1 369 #define GEM_TX_PKT_BUFF_OFFSET 21 370 #define GEM_TX_PKT_BUFF_SIZE 1 371 372 /* Constants for CLK */ 373 #define MACB_CLK_DIV8 0 374 #define MACB_CLK_DIV16 1 375 #define MACB_CLK_DIV32 2 376 #define MACB_CLK_DIV64 3 377 378 /* GEM specific constants for CLK. */ 379 #define GEM_CLK_DIV8 0 380 #define GEM_CLK_DIV16 1 381 #define GEM_CLK_DIV32 2 382 #define GEM_CLK_DIV48 3 383 #define GEM_CLK_DIV64 4 384 #define GEM_CLK_DIV96 5 385 386 /* Constants for MAN register */ 387 #define MACB_MAN_SOF 1 388 #define MACB_MAN_WRITE 1 389 #define MACB_MAN_READ 2 390 #define MACB_MAN_CODE 2 391 392 /* Capability mask bits */ 393 #define MACB_CAPS_ISR_CLEAR_ON_WRITE 0x00000001 394 #define MACB_CAPS_USRIO_HAS_CLKEN 0x00000002 395 #define MACB_CAPS_USRIO_DEFAULT_IS_MII 0x00000004 396 #define MACB_CAPS_FIFO_MODE 0x10000000 397 #define MACB_CAPS_GIGABIT_MODE_AVAILABLE 0x20000000 398 #define MACB_CAPS_SG_DISABLED 0x40000000 399 #define MACB_CAPS_MACB_IS_GEM 0x80000000 400 401 /* Bit manipulation macros */ 402 #define MACB_BIT(name) \ 403 (1 << MACB_##name##_OFFSET) 404 #define MACB_BF(name,value) \ 405 (((value) & ((1 << MACB_##name##_SIZE) - 1)) \ 406 << MACB_##name##_OFFSET) 407 #define MACB_BFEXT(name,value)\ 408 (((value) >> MACB_##name##_OFFSET) \ 409 & ((1 << MACB_##name##_SIZE) - 1)) 410 #define MACB_BFINS(name,value,old) \ 411 (((old) & ~(((1 << MACB_##name##_SIZE) - 1) \ 412 << MACB_##name##_OFFSET)) \ 413 | MACB_BF(name,value)) 414 415 #define GEM_BIT(name) \ 416 (1 << GEM_##name##_OFFSET) 417 #define GEM_BF(name, value) \ 418 (((value) & ((1 << GEM_##name##_SIZE) - 1)) \ 419 << GEM_##name##_OFFSET) 420 #define GEM_BFEXT(name, value)\ 421 (((value) >> GEM_##name##_OFFSET) \ 422 & ((1 << GEM_##name##_SIZE) - 1)) 423 #define GEM_BFINS(name, value, old) \ 424 (((old) & ~(((1 << GEM_##name##_SIZE) - 1) \ 425 << GEM_##name##_OFFSET)) \ 426 | GEM_BF(name, value)) 427 428 /* Register access macros */ 429 #define macb_readl(port,reg) \ 430 readl_relaxed((port)->regs + MACB_##reg) 431 #define macb_writel(port,reg,value) \ 432 writel_relaxed((value), (port)->regs + MACB_##reg) 433 #define gem_readl(port, reg) \ 434 readl_relaxed((port)->regs + GEM_##reg) 435 #define gem_writel(port, reg, value) \ 436 writel_relaxed((value), (port)->regs + GEM_##reg) 437 #define queue_readl(queue, reg) \ 438 readl_relaxed((queue)->bp->regs + (queue)->reg) 439 #define queue_writel(queue, reg, value) \ 440 writel_relaxed((value), (queue)->bp->regs + (queue)->reg) 441 442 /* Conditional GEM/MACB macros. These perform the operation to the correct 443 * register dependent on whether the device is a GEM or a MACB. For registers 444 * and bitfields that are common across both devices, use macb_{read,write}l 445 * to avoid the cost of the conditional. 446 */ 447 #define macb_or_gem_writel(__bp, __reg, __value) \ 448 ({ \ 449 if (macb_is_gem((__bp))) \ 450 gem_writel((__bp), __reg, __value); \ 451 else \ 452 macb_writel((__bp), __reg, __value); \ 453 }) 454 455 #define macb_or_gem_readl(__bp, __reg) \ 456 ({ \ 457 u32 __v; \ 458 if (macb_is_gem((__bp))) \ 459 __v = gem_readl((__bp), __reg); \ 460 else \ 461 __v = macb_readl((__bp), __reg); \ 462 __v; \ 463 }) 464 465 /* struct macb_dma_desc - Hardware DMA descriptor 466 * @addr: DMA address of data buffer 467 * @ctrl: Control and status bits 468 */ 469 struct macb_dma_desc { 470 u32 addr; 471 u32 ctrl; 472 }; 473 474 /* DMA descriptor bitfields */ 475 #define MACB_RX_USED_OFFSET 0 476 #define MACB_RX_USED_SIZE 1 477 #define MACB_RX_WRAP_OFFSET 1 478 #define MACB_RX_WRAP_SIZE 1 479 #define MACB_RX_WADDR_OFFSET 2 480 #define MACB_RX_WADDR_SIZE 30 481 482 #define MACB_RX_FRMLEN_OFFSET 0 483 #define MACB_RX_FRMLEN_SIZE 12 484 #define MACB_RX_OFFSET_OFFSET 12 485 #define MACB_RX_OFFSET_SIZE 2 486 #define MACB_RX_SOF_OFFSET 14 487 #define MACB_RX_SOF_SIZE 1 488 #define MACB_RX_EOF_OFFSET 15 489 #define MACB_RX_EOF_SIZE 1 490 #define MACB_RX_CFI_OFFSET 16 491 #define MACB_RX_CFI_SIZE 1 492 #define MACB_RX_VLAN_PRI_OFFSET 17 493 #define MACB_RX_VLAN_PRI_SIZE 3 494 #define MACB_RX_PRI_TAG_OFFSET 20 495 #define MACB_RX_PRI_TAG_SIZE 1 496 #define MACB_RX_VLAN_TAG_OFFSET 21 497 #define MACB_RX_VLAN_TAG_SIZE 1 498 #define MACB_RX_TYPEID_MATCH_OFFSET 22 499 #define MACB_RX_TYPEID_MATCH_SIZE 1 500 #define MACB_RX_SA4_MATCH_OFFSET 23 501 #define MACB_RX_SA4_MATCH_SIZE 1 502 #define MACB_RX_SA3_MATCH_OFFSET 24 503 #define MACB_RX_SA3_MATCH_SIZE 1 504 #define MACB_RX_SA2_MATCH_OFFSET 25 505 #define MACB_RX_SA2_MATCH_SIZE 1 506 #define MACB_RX_SA1_MATCH_OFFSET 26 507 #define MACB_RX_SA1_MATCH_SIZE 1 508 #define MACB_RX_EXT_MATCH_OFFSET 28 509 #define MACB_RX_EXT_MATCH_SIZE 1 510 #define MACB_RX_UHASH_MATCH_OFFSET 29 511 #define MACB_RX_UHASH_MATCH_SIZE 1 512 #define MACB_RX_MHASH_MATCH_OFFSET 30 513 #define MACB_RX_MHASH_MATCH_SIZE 1 514 #define MACB_RX_BROADCAST_OFFSET 31 515 #define MACB_RX_BROADCAST_SIZE 1 516 517 /* RX checksum offload disabled: bit 24 clear in NCFGR */ 518 #define GEM_RX_TYPEID_MATCH_OFFSET 22 519 #define GEM_RX_TYPEID_MATCH_SIZE 2 520 521 /* RX checksum offload enabled: bit 24 set in NCFGR */ 522 #define GEM_RX_CSUM_OFFSET 22 523 #define GEM_RX_CSUM_SIZE 2 524 525 #define MACB_TX_FRMLEN_OFFSET 0 526 #define MACB_TX_FRMLEN_SIZE 11 527 #define MACB_TX_LAST_OFFSET 15 528 #define MACB_TX_LAST_SIZE 1 529 #define MACB_TX_NOCRC_OFFSET 16 530 #define MACB_TX_NOCRC_SIZE 1 531 #define MACB_TX_BUF_EXHAUSTED_OFFSET 27 532 #define MACB_TX_BUF_EXHAUSTED_SIZE 1 533 #define MACB_TX_UNDERRUN_OFFSET 28 534 #define MACB_TX_UNDERRUN_SIZE 1 535 #define MACB_TX_ERROR_OFFSET 29 536 #define MACB_TX_ERROR_SIZE 1 537 #define MACB_TX_WRAP_OFFSET 30 538 #define MACB_TX_WRAP_SIZE 1 539 #define MACB_TX_USED_OFFSET 31 540 #define MACB_TX_USED_SIZE 1 541 542 #define GEM_TX_FRMLEN_OFFSET 0 543 #define GEM_TX_FRMLEN_SIZE 14 544 545 /* Buffer descriptor constants */ 546 #define GEM_RX_CSUM_NONE 0 547 #define GEM_RX_CSUM_IP_ONLY 1 548 #define GEM_RX_CSUM_IP_TCP 2 549 #define GEM_RX_CSUM_IP_UDP 3 550 551 /* limit RX checksum offload to TCP and UDP packets */ 552 #define GEM_RX_CSUM_CHECKED_MASK 2 553 554 /* struct macb_tx_skb - data about an skb which is being transmitted 555 * @skb: skb currently being transmitted, only set for the last buffer 556 * of the frame 557 * @mapping: DMA address of the skb's fragment buffer 558 * @size: size of the DMA mapped buffer 559 * @mapped_as_page: true when buffer was mapped with skb_frag_dma_map(), 560 * false when buffer was mapped with dma_map_single() 561 */ 562 struct macb_tx_skb { 563 struct sk_buff *skb; 564 dma_addr_t mapping; 565 size_t size; 566 bool mapped_as_page; 567 }; 568 569 /* Hardware-collected statistics. Used when updating the network 570 * device stats by a periodic timer. 571 */ 572 struct macb_stats { 573 u32 rx_pause_frames; 574 u32 tx_ok; 575 u32 tx_single_cols; 576 u32 tx_multiple_cols; 577 u32 rx_ok; 578 u32 rx_fcs_errors; 579 u32 rx_align_errors; 580 u32 tx_deferred; 581 u32 tx_late_cols; 582 u32 tx_excessive_cols; 583 u32 tx_underruns; 584 u32 tx_carrier_errors; 585 u32 rx_resource_errors; 586 u32 rx_overruns; 587 u32 rx_symbol_errors; 588 u32 rx_oversize_pkts; 589 u32 rx_jabbers; 590 u32 rx_undersize_pkts; 591 u32 sqe_test_errors; 592 u32 rx_length_mismatch; 593 u32 tx_pause_frames; 594 }; 595 596 struct gem_stats { 597 u32 tx_octets_31_0; 598 u32 tx_octets_47_32; 599 u32 tx_frames; 600 u32 tx_broadcast_frames; 601 u32 tx_multicast_frames; 602 u32 tx_pause_frames; 603 u32 tx_64_byte_frames; 604 u32 tx_65_127_byte_frames; 605 u32 tx_128_255_byte_frames; 606 u32 tx_256_511_byte_frames; 607 u32 tx_512_1023_byte_frames; 608 u32 tx_1024_1518_byte_frames; 609 u32 tx_greater_than_1518_byte_frames; 610 u32 tx_underrun; 611 u32 tx_single_collision_frames; 612 u32 tx_multiple_collision_frames; 613 u32 tx_excessive_collisions; 614 u32 tx_late_collisions; 615 u32 tx_deferred_frames; 616 u32 tx_carrier_sense_errors; 617 u32 rx_octets_31_0; 618 u32 rx_octets_47_32; 619 u32 rx_frames; 620 u32 rx_broadcast_frames; 621 u32 rx_multicast_frames; 622 u32 rx_pause_frames; 623 u32 rx_64_byte_frames; 624 u32 rx_65_127_byte_frames; 625 u32 rx_128_255_byte_frames; 626 u32 rx_256_511_byte_frames; 627 u32 rx_512_1023_byte_frames; 628 u32 rx_1024_1518_byte_frames; 629 u32 rx_greater_than_1518_byte_frames; 630 u32 rx_undersized_frames; 631 u32 rx_oversize_frames; 632 u32 rx_jabbers; 633 u32 rx_frame_check_sequence_errors; 634 u32 rx_length_field_frame_errors; 635 u32 rx_symbol_errors; 636 u32 rx_alignment_errors; 637 u32 rx_resource_errors; 638 u32 rx_overruns; 639 u32 rx_ip_header_checksum_errors; 640 u32 rx_tcp_checksum_errors; 641 u32 rx_udp_checksum_errors; 642 }; 643 644 /* Describes the name and offset of an individual statistic register, as 645 * returned by `ethtool -S`. Also describes which net_device_stats statistics 646 * this register should contribute to. 647 */ 648 struct gem_statistic { 649 char stat_string[ETH_GSTRING_LEN]; 650 int offset; 651 u32 stat_bits; 652 }; 653 654 /* Bitfield defs for net_device_stat statistics */ 655 #define GEM_NDS_RXERR_OFFSET 0 656 #define GEM_NDS_RXLENERR_OFFSET 1 657 #define GEM_NDS_RXOVERERR_OFFSET 2 658 #define GEM_NDS_RXCRCERR_OFFSET 3 659 #define GEM_NDS_RXFRAMEERR_OFFSET 4 660 #define GEM_NDS_RXFIFOERR_OFFSET 5 661 #define GEM_NDS_TXERR_OFFSET 6 662 #define GEM_NDS_TXABORTEDERR_OFFSET 7 663 #define GEM_NDS_TXCARRIERERR_OFFSET 8 664 #define GEM_NDS_TXFIFOERR_OFFSET 9 665 #define GEM_NDS_COLLISIONS_OFFSET 10 666 667 #define GEM_STAT_TITLE(name, title) GEM_STAT_TITLE_BITS(name, title, 0) 668 #define GEM_STAT_TITLE_BITS(name, title, bits) { \ 669 .stat_string = title, \ 670 .offset = GEM_##name, \ 671 .stat_bits = bits \ 672 } 673 674 /* list of gem statistic registers. The names MUST match the 675 * corresponding GEM_* definitions. 676 */ 677 static const struct gem_statistic gem_statistics[] = { 678 GEM_STAT_TITLE(OCTTXL, "tx_octets"), /* OCTTXH combined with OCTTXL */ 679 GEM_STAT_TITLE(TXCNT, "tx_frames"), 680 GEM_STAT_TITLE(TXBCCNT, "tx_broadcast_frames"), 681 GEM_STAT_TITLE(TXMCCNT, "tx_multicast_frames"), 682 GEM_STAT_TITLE(TXPAUSECNT, "tx_pause_frames"), 683 GEM_STAT_TITLE(TX64CNT, "tx_64_byte_frames"), 684 GEM_STAT_TITLE(TX65CNT, "tx_65_127_byte_frames"), 685 GEM_STAT_TITLE(TX128CNT, "tx_128_255_byte_frames"), 686 GEM_STAT_TITLE(TX256CNT, "tx_256_511_byte_frames"), 687 GEM_STAT_TITLE(TX512CNT, "tx_512_1023_byte_frames"), 688 GEM_STAT_TITLE(TX1024CNT, "tx_1024_1518_byte_frames"), 689 GEM_STAT_TITLE(TX1519CNT, "tx_greater_than_1518_byte_frames"), 690 GEM_STAT_TITLE_BITS(TXURUNCNT, "tx_underrun", 691 GEM_BIT(NDS_TXERR)|GEM_BIT(NDS_TXFIFOERR)), 692 GEM_STAT_TITLE_BITS(SNGLCOLLCNT, "tx_single_collision_frames", 693 GEM_BIT(NDS_TXERR)|GEM_BIT(NDS_COLLISIONS)), 694 GEM_STAT_TITLE_BITS(MULTICOLLCNT, "tx_multiple_collision_frames", 695 GEM_BIT(NDS_TXERR)|GEM_BIT(NDS_COLLISIONS)), 696 GEM_STAT_TITLE_BITS(EXCESSCOLLCNT, "tx_excessive_collisions", 697 GEM_BIT(NDS_TXERR)| 698 GEM_BIT(NDS_TXABORTEDERR)| 699 GEM_BIT(NDS_COLLISIONS)), 700 GEM_STAT_TITLE_BITS(LATECOLLCNT, "tx_late_collisions", 701 GEM_BIT(NDS_TXERR)|GEM_BIT(NDS_COLLISIONS)), 702 GEM_STAT_TITLE(TXDEFERCNT, "tx_deferred_frames"), 703 GEM_STAT_TITLE_BITS(TXCSENSECNT, "tx_carrier_sense_errors", 704 GEM_BIT(NDS_TXERR)|GEM_BIT(NDS_COLLISIONS)), 705 GEM_STAT_TITLE(OCTRXL, "rx_octets"), /* OCTRXH combined with OCTRXL */ 706 GEM_STAT_TITLE(RXCNT, "rx_frames"), 707 GEM_STAT_TITLE(RXBROADCNT, "rx_broadcast_frames"), 708 GEM_STAT_TITLE(RXMULTICNT, "rx_multicast_frames"), 709 GEM_STAT_TITLE(RXPAUSECNT, "rx_pause_frames"), 710 GEM_STAT_TITLE(RX64CNT, "rx_64_byte_frames"), 711 GEM_STAT_TITLE(RX65CNT, "rx_65_127_byte_frames"), 712 GEM_STAT_TITLE(RX128CNT, "rx_128_255_byte_frames"), 713 GEM_STAT_TITLE(RX256CNT, "rx_256_511_byte_frames"), 714 GEM_STAT_TITLE(RX512CNT, "rx_512_1023_byte_frames"), 715 GEM_STAT_TITLE(RX1024CNT, "rx_1024_1518_byte_frames"), 716 GEM_STAT_TITLE(RX1519CNT, "rx_greater_than_1518_byte_frames"), 717 GEM_STAT_TITLE_BITS(RXUNDRCNT, "rx_undersized_frames", 718 GEM_BIT(NDS_RXERR)|GEM_BIT(NDS_RXLENERR)), 719 GEM_STAT_TITLE_BITS(RXOVRCNT, "rx_oversize_frames", 720 GEM_BIT(NDS_RXERR)|GEM_BIT(NDS_RXLENERR)), 721 GEM_STAT_TITLE_BITS(RXJABCNT, "rx_jabbers", 722 GEM_BIT(NDS_RXERR)|GEM_BIT(NDS_RXLENERR)), 723 GEM_STAT_TITLE_BITS(RXFCSCNT, "rx_frame_check_sequence_errors", 724 GEM_BIT(NDS_RXERR)|GEM_BIT(NDS_RXCRCERR)), 725 GEM_STAT_TITLE_BITS(RXLENGTHCNT, "rx_length_field_frame_errors", 726 GEM_BIT(NDS_RXERR)), 727 GEM_STAT_TITLE_BITS(RXSYMBCNT, "rx_symbol_errors", 728 GEM_BIT(NDS_RXERR)|GEM_BIT(NDS_RXFRAMEERR)), 729 GEM_STAT_TITLE_BITS(RXALIGNCNT, "rx_alignment_errors", 730 GEM_BIT(NDS_RXERR)|GEM_BIT(NDS_RXOVERERR)), 731 GEM_STAT_TITLE_BITS(RXRESERRCNT, "rx_resource_errors", 732 GEM_BIT(NDS_RXERR)|GEM_BIT(NDS_RXOVERERR)), 733 GEM_STAT_TITLE_BITS(RXORCNT, "rx_overruns", 734 GEM_BIT(NDS_RXERR)|GEM_BIT(NDS_RXFIFOERR)), 735 GEM_STAT_TITLE_BITS(RXIPCCNT, "rx_ip_header_checksum_errors", 736 GEM_BIT(NDS_RXERR)), 737 GEM_STAT_TITLE_BITS(RXTCPCCNT, "rx_tcp_checksum_errors", 738 GEM_BIT(NDS_RXERR)), 739 GEM_STAT_TITLE_BITS(RXUDPCCNT, "rx_udp_checksum_errors", 740 GEM_BIT(NDS_RXERR)), 741 }; 742 743 #define GEM_STATS_LEN ARRAY_SIZE(gem_statistics) 744 745 struct macb; 746 747 struct macb_or_gem_ops { 748 int (*mog_alloc_rx_buffers)(struct macb *bp); 749 void (*mog_free_rx_buffers)(struct macb *bp); 750 void (*mog_init_rings)(struct macb *bp); 751 int (*mog_rx)(struct macb *bp, int budget); 752 }; 753 754 struct macb_config { 755 u32 caps; 756 unsigned int dma_burst_length; 757 int (*clk_init)(struct platform_device *pdev, struct clk **pclk, 758 struct clk **hclk, struct clk **tx_clk); 759 int (*init)(struct platform_device *pdev); 760 }; 761 762 struct macb_queue { 763 struct macb *bp; 764 int irq; 765 766 unsigned int ISR; 767 unsigned int IER; 768 unsigned int IDR; 769 unsigned int IMR; 770 unsigned int TBQP; 771 772 unsigned int tx_head, tx_tail; 773 struct macb_dma_desc *tx_ring; 774 struct macb_tx_skb *tx_skb; 775 dma_addr_t tx_ring_dma; 776 struct work_struct tx_error_task; 777 }; 778 779 struct macb { 780 void __iomem *regs; 781 782 unsigned int rx_tail; 783 unsigned int rx_prepared_head; 784 struct macb_dma_desc *rx_ring; 785 struct sk_buff **rx_skbuff; 786 void *rx_buffers; 787 size_t rx_buffer_size; 788 789 unsigned int num_queues; 790 unsigned int queue_mask; 791 struct macb_queue queues[MACB_MAX_QUEUES]; 792 793 spinlock_t lock; 794 struct platform_device *pdev; 795 struct clk *pclk; 796 struct clk *hclk; 797 struct clk *tx_clk; 798 struct net_device *dev; 799 struct napi_struct napi; 800 struct net_device_stats stats; 801 union { 802 struct macb_stats macb; 803 struct gem_stats gem; 804 } hw_stats; 805 806 dma_addr_t rx_ring_dma; 807 dma_addr_t rx_buffers_dma; 808 809 struct macb_or_gem_ops macbgem_ops; 810 811 struct mii_bus *mii_bus; 812 struct phy_device *phy_dev; 813 unsigned int link; 814 unsigned int speed; 815 unsigned int duplex; 816 817 u32 caps; 818 unsigned int dma_burst_length; 819 820 phy_interface_t phy_interface; 821 822 /* AT91RM9200 transmit */ 823 struct sk_buff *skb; /* holds skb until xmit interrupt completes */ 824 dma_addr_t skb_physaddr; /* phys addr from pci_map_single */ 825 int skb_length; /* saved skb length for pci_unmap_single */ 826 unsigned int max_tx_length; 827 828 u64 ethtool_stats[GEM_STATS_LEN]; 829 }; 830 831 static inline bool macb_is_gem(struct macb *bp) 832 { 833 return !!(bp->caps & MACB_CAPS_MACB_IS_GEM); 834 } 835 836 static inline bool macb_is_gem_hw(void __iomem *addr) 837 { 838 return !!(MACB_BFEXT(IDNUM, readl_relaxed(addr + MACB_MID)) >= 0x2); 839 } 840 841 #endif /* _MACB_H */ 842