1 /* 2 * Copyright (c) 2014 Broadcom Corporation 3 * 4 * This program is free software; you can redistribute it and/or modify 5 * it under the terms of the GNU General Public License version 2 as 6 * published by the Free Software Foundation. 7 */ 8 9 #ifndef __BCMGENET_H__ 10 #define __BCMGENET_H__ 11 12 #include <linux/skbuff.h> 13 #include <linux/netdevice.h> 14 #include <linux/spinlock.h> 15 #include <linux/clk.h> 16 #include <linux/mii.h> 17 #include <linux/if_vlan.h> 18 #include <linux/phy.h> 19 20 /* total number of Buffer Descriptors, same for Rx/Tx */ 21 #define TOTAL_DESC 256 22 23 /* which ring is descriptor based */ 24 #define DESC_INDEX 16 25 26 /* Body(1500) + EH_SIZE(14) + VLANTAG(4) + BRCMTAG(6) + FCS(4) = 1528. 27 * 1536 is multiple of 256 bytes 28 */ 29 #define ENET_BRCM_TAG_LEN 6 30 #define ENET_PAD 8 31 #define ENET_MAX_MTU_SIZE (ETH_DATA_LEN + ETH_HLEN + VLAN_HLEN + \ 32 ENET_BRCM_TAG_LEN + ETH_FCS_LEN + ENET_PAD) 33 #define DMA_MAX_BURST_LENGTH 0x10 34 35 /* misc. configuration */ 36 #define CLEAR_ALL_HFB 0xFF 37 #define DMA_FC_THRESH_HI (TOTAL_DESC >> 4) 38 #define DMA_FC_THRESH_LO 5 39 40 /* 64B receive/transmit status block */ 41 struct status_64 { 42 u32 length_status; /* length and peripheral status */ 43 u32 ext_status; /* Extended status*/ 44 u32 rx_csum; /* partial rx checksum */ 45 u32 unused1[9]; /* unused */ 46 u32 tx_csum_info; /* Tx checksum info. */ 47 u32 unused2[3]; /* unused */ 48 }; 49 50 /* Rx status bits */ 51 #define STATUS_RX_EXT_MASK 0x1FFFFF 52 #define STATUS_RX_CSUM_MASK 0xFFFF 53 #define STATUS_RX_CSUM_OK 0x10000 54 #define STATUS_RX_CSUM_FR 0x20000 55 #define STATUS_RX_PROTO_TCP 0 56 #define STATUS_RX_PROTO_UDP 1 57 #define STATUS_RX_PROTO_ICMP 2 58 #define STATUS_RX_PROTO_OTHER 3 59 #define STATUS_RX_PROTO_MASK 3 60 #define STATUS_RX_PROTO_SHIFT 18 61 #define STATUS_FILTER_INDEX_MASK 0xFFFF 62 /* Tx status bits */ 63 #define STATUS_TX_CSUM_START_MASK 0X7FFF 64 #define STATUS_TX_CSUM_START_SHIFT 16 65 #define STATUS_TX_CSUM_PROTO_UDP 0x8000 66 #define STATUS_TX_CSUM_OFFSET_MASK 0x7FFF 67 #define STATUS_TX_CSUM_LV 0x80000000 68 69 /* DMA Descriptor */ 70 #define DMA_DESC_LENGTH_STATUS 0x00 /* in bytes of data in buffer */ 71 #define DMA_DESC_ADDRESS_LO 0x04 /* lower bits of PA */ 72 #define DMA_DESC_ADDRESS_HI 0x08 /* upper 32 bits of PA, GENETv4+ */ 73 74 /* Rx/Tx common counter group */ 75 struct bcmgenet_pkt_counters { 76 u32 cnt_64; /* RO Received/Transmited 64 bytes packet */ 77 u32 cnt_127; /* RO Rx/Tx 127 bytes packet */ 78 u32 cnt_255; /* RO Rx/Tx 65-255 bytes packet */ 79 u32 cnt_511; /* RO Rx/Tx 256-511 bytes packet */ 80 u32 cnt_1023; /* RO Rx/Tx 512-1023 bytes packet */ 81 u32 cnt_1518; /* RO Rx/Tx 1024-1518 bytes packet */ 82 u32 cnt_mgv; /* RO Rx/Tx 1519-1522 good VLAN packet */ 83 u32 cnt_2047; /* RO Rx/Tx 1522-2047 bytes packet*/ 84 u32 cnt_4095; /* RO Rx/Tx 2048-4095 bytes packet*/ 85 u32 cnt_9216; /* RO Rx/Tx 4096-9216 bytes packet*/ 86 }; 87 88 /* RSV, Receive Status Vector */ 89 struct bcmgenet_rx_counters { 90 struct bcmgenet_pkt_counters pkt_cnt; 91 u32 pkt; /* RO (0x428) Received pkt count*/ 92 u32 bytes; /* RO Received byte count */ 93 u32 mca; /* RO # of Received multicast pkt */ 94 u32 bca; /* RO # of Receive broadcast pkt */ 95 u32 fcs; /* RO # of Received FCS error */ 96 u32 cf; /* RO # of Received control frame pkt*/ 97 u32 pf; /* RO # of Received pause frame pkt */ 98 u32 uo; /* RO # of unknown op code pkt */ 99 u32 aln; /* RO # of alignment error count */ 100 u32 flr; /* RO # of frame length out of range count */ 101 u32 cde; /* RO # of code error pkt */ 102 u32 fcr; /* RO # of carrier sense error pkt */ 103 u32 ovr; /* RO # of oversize pkt*/ 104 u32 jbr; /* RO # of jabber count */ 105 u32 mtue; /* RO # of MTU error pkt*/ 106 u32 pok; /* RO # of Received good pkt */ 107 u32 uc; /* RO # of unicast pkt */ 108 u32 ppp; /* RO # of PPP pkt */ 109 u32 rcrc; /* RO (0x470),# of CRC match pkt */ 110 }; 111 112 /* TSV, Transmit Status Vector */ 113 struct bcmgenet_tx_counters { 114 struct bcmgenet_pkt_counters pkt_cnt; 115 u32 pkts; /* RO (0x4a8) Transmited pkt */ 116 u32 mca; /* RO # of xmited multicast pkt */ 117 u32 bca; /* RO # of xmited broadcast pkt */ 118 u32 pf; /* RO # of xmited pause frame count */ 119 u32 cf; /* RO # of xmited control frame count */ 120 u32 fcs; /* RO # of xmited FCS error count */ 121 u32 ovr; /* RO # of xmited oversize pkt */ 122 u32 drf; /* RO # of xmited deferral pkt */ 123 u32 edf; /* RO # of xmited Excessive deferral pkt*/ 124 u32 scl; /* RO # of xmited single collision pkt */ 125 u32 mcl; /* RO # of xmited multiple collision pkt*/ 126 u32 lcl; /* RO # of xmited late collision pkt */ 127 u32 ecl; /* RO # of xmited excessive collision pkt*/ 128 u32 frg; /* RO # of xmited fragments pkt*/ 129 u32 ncl; /* RO # of xmited total collision count */ 130 u32 jbr; /* RO # of xmited jabber count*/ 131 u32 bytes; /* RO # of xmited byte count */ 132 u32 pok; /* RO # of xmited good pkt */ 133 u32 uc; /* RO (0x0x4f0)# of xmited unitcast pkt */ 134 }; 135 136 struct bcmgenet_mib_counters { 137 struct bcmgenet_rx_counters rx; 138 struct bcmgenet_tx_counters tx; 139 u32 rx_runt_cnt; 140 u32 rx_runt_fcs; 141 u32 rx_runt_fcs_align; 142 u32 rx_runt_bytes; 143 u32 rbuf_ovflow_cnt; 144 u32 rbuf_err_cnt; 145 u32 mdf_err_cnt; 146 u32 alloc_rx_buff_failed; 147 u32 rx_dma_failed; 148 u32 tx_dma_failed; 149 }; 150 151 #define UMAC_HD_BKP_CTRL 0x004 152 #define HD_FC_EN (1 << 0) 153 #define HD_FC_BKOFF_OK (1 << 1) 154 #define IPG_CONFIG_RX_SHIFT 2 155 #define IPG_CONFIG_RX_MASK 0x1F 156 157 #define UMAC_CMD 0x008 158 #define CMD_TX_EN (1 << 0) 159 #define CMD_RX_EN (1 << 1) 160 #define UMAC_SPEED_10 0 161 #define UMAC_SPEED_100 1 162 #define UMAC_SPEED_1000 2 163 #define UMAC_SPEED_2500 3 164 #define CMD_SPEED_SHIFT 2 165 #define CMD_SPEED_MASK 3 166 #define CMD_PROMISC (1 << 4) 167 #define CMD_PAD_EN (1 << 5) 168 #define CMD_CRC_FWD (1 << 6) 169 #define CMD_PAUSE_FWD (1 << 7) 170 #define CMD_RX_PAUSE_IGNORE (1 << 8) 171 #define CMD_TX_ADDR_INS (1 << 9) 172 #define CMD_HD_EN (1 << 10) 173 #define CMD_SW_RESET (1 << 13) 174 #define CMD_LCL_LOOP_EN (1 << 15) 175 #define CMD_AUTO_CONFIG (1 << 22) 176 #define CMD_CNTL_FRM_EN (1 << 23) 177 #define CMD_NO_LEN_CHK (1 << 24) 178 #define CMD_RMT_LOOP_EN (1 << 25) 179 #define CMD_PRBL_EN (1 << 27) 180 #define CMD_TX_PAUSE_IGNORE (1 << 28) 181 #define CMD_TX_RX_EN (1 << 29) 182 #define CMD_RUNT_FILTER_DIS (1 << 30) 183 184 #define UMAC_MAC0 0x00C 185 #define UMAC_MAC1 0x010 186 #define UMAC_MAX_FRAME_LEN 0x014 187 188 #define UMAC_EEE_CTRL 0x064 189 #define EN_LPI_RX_PAUSE (1 << 0) 190 #define EN_LPI_TX_PFC (1 << 1) 191 #define EN_LPI_TX_PAUSE (1 << 2) 192 #define EEE_EN (1 << 3) 193 #define RX_FIFO_CHECK (1 << 4) 194 #define EEE_TX_CLK_DIS (1 << 5) 195 #define DIS_EEE_10M (1 << 6) 196 #define LP_IDLE_PREDICTION_MODE (1 << 7) 197 198 #define UMAC_EEE_LPI_TIMER 0x068 199 #define UMAC_EEE_WAKE_TIMER 0x06C 200 #define UMAC_EEE_REF_COUNT 0x070 201 #define EEE_REFERENCE_COUNT_MASK 0xffff 202 203 #define UMAC_TX_FLUSH 0x334 204 205 #define UMAC_MIB_START 0x400 206 207 #define UMAC_MDIO_CMD 0x614 208 #define MDIO_START_BUSY (1 << 29) 209 #define MDIO_READ_FAIL (1 << 28) 210 #define MDIO_RD (2 << 26) 211 #define MDIO_WR (1 << 26) 212 #define MDIO_PMD_SHIFT 21 213 #define MDIO_PMD_MASK 0x1F 214 #define MDIO_REG_SHIFT 16 215 #define MDIO_REG_MASK 0x1F 216 217 #define UMAC_RBUF_OVFL_CNT 0x61C 218 219 #define UMAC_MPD_CTRL 0x620 220 #define MPD_EN (1 << 0) 221 #define MPD_PW_EN (1 << 27) 222 #define MPD_MSEQ_LEN_SHIFT 16 223 #define MPD_MSEQ_LEN_MASK 0xFF 224 225 #define UMAC_MPD_PW_MS 0x624 226 #define UMAC_MPD_PW_LS 0x628 227 #define UMAC_RBUF_ERR_CNT 0x634 228 #define UMAC_MDF_ERR_CNT 0x638 229 #define UMAC_MDF_CTRL 0x650 230 #define UMAC_MDF_ADDR 0x654 231 #define UMAC_MIB_CTRL 0x580 232 #define MIB_RESET_RX (1 << 0) 233 #define MIB_RESET_RUNT (1 << 1) 234 #define MIB_RESET_TX (1 << 2) 235 236 #define RBUF_CTRL 0x00 237 #define RBUF_64B_EN (1 << 0) 238 #define RBUF_ALIGN_2B (1 << 1) 239 #define RBUF_BAD_DIS (1 << 2) 240 241 #define RBUF_STATUS 0x0C 242 #define RBUF_STATUS_WOL (1 << 0) 243 #define RBUF_STATUS_MPD_INTR_ACTIVE (1 << 1) 244 #define RBUF_STATUS_ACPI_INTR_ACTIVE (1 << 2) 245 246 #define RBUF_CHK_CTRL 0x14 247 #define RBUF_RXCHK_EN (1 << 0) 248 #define RBUF_SKIP_FCS (1 << 4) 249 250 #define RBUF_ENERGY_CTRL 0x9c 251 #define RBUF_EEE_EN (1 << 0) 252 #define RBUF_PM_EN (1 << 1) 253 254 #define RBUF_TBUF_SIZE_CTRL 0xb4 255 256 #define RBUF_HFB_CTRL_V1 0x38 257 #define RBUF_HFB_FILTER_EN_SHIFT 16 258 #define RBUF_HFB_FILTER_EN_MASK 0xffff0000 259 #define RBUF_HFB_EN (1 << 0) 260 #define RBUF_HFB_256B (1 << 1) 261 #define RBUF_ACPI_EN (1 << 2) 262 263 #define RBUF_HFB_LEN_V1 0x3C 264 #define RBUF_FLTR_LEN_MASK 0xFF 265 #define RBUF_FLTR_LEN_SHIFT 8 266 267 #define TBUF_CTRL 0x00 268 #define TBUF_BP_MC 0x0C 269 #define TBUF_ENERGY_CTRL 0x14 270 #define TBUF_EEE_EN (1 << 0) 271 #define TBUF_PM_EN (1 << 1) 272 273 #define TBUF_CTRL_V1 0x80 274 #define TBUF_BP_MC_V1 0xA0 275 276 #define HFB_CTRL 0x00 277 #define HFB_FLT_ENABLE_V3PLUS 0x04 278 #define HFB_FLT_LEN_V2 0x04 279 #define HFB_FLT_LEN_V3PLUS 0x1C 280 281 /* uniMac intrl2 registers */ 282 #define INTRL2_CPU_STAT 0x00 283 #define INTRL2_CPU_SET 0x04 284 #define INTRL2_CPU_CLEAR 0x08 285 #define INTRL2_CPU_MASK_STATUS 0x0C 286 #define INTRL2_CPU_MASK_SET 0x10 287 #define INTRL2_CPU_MASK_CLEAR 0x14 288 289 /* INTRL2 instance 0 definitions */ 290 #define UMAC_IRQ_SCB (1 << 0) 291 #define UMAC_IRQ_EPHY (1 << 1) 292 #define UMAC_IRQ_PHY_DET_R (1 << 2) 293 #define UMAC_IRQ_PHY_DET_F (1 << 3) 294 #define UMAC_IRQ_LINK_UP (1 << 4) 295 #define UMAC_IRQ_LINK_DOWN (1 << 5) 296 #define UMAC_IRQ_LINK_EVENT (UMAC_IRQ_LINK_UP | UMAC_IRQ_LINK_DOWN) 297 #define UMAC_IRQ_UMAC (1 << 6) 298 #define UMAC_IRQ_UMAC_TSV (1 << 7) 299 #define UMAC_IRQ_TBUF_UNDERRUN (1 << 8) 300 #define UMAC_IRQ_RBUF_OVERFLOW (1 << 9) 301 #define UMAC_IRQ_HFB_SM (1 << 10) 302 #define UMAC_IRQ_HFB_MM (1 << 11) 303 #define UMAC_IRQ_MPD_R (1 << 12) 304 #define UMAC_IRQ_RXDMA_MBDONE (1 << 13) 305 #define UMAC_IRQ_RXDMA_PDONE (1 << 14) 306 #define UMAC_IRQ_RXDMA_BDONE (1 << 15) 307 #define UMAC_IRQ_RXDMA_DONE (UMAC_IRQ_RXDMA_PDONE | \ 308 UMAC_IRQ_RXDMA_BDONE) 309 #define UMAC_IRQ_TXDMA_MBDONE (1 << 16) 310 #define UMAC_IRQ_TXDMA_PDONE (1 << 17) 311 #define UMAC_IRQ_TXDMA_BDONE (1 << 18) 312 #define UMAC_IRQ_TXDMA_DONE (UMAC_IRQ_TXDMA_PDONE | \ 313 UMAC_IRQ_TXDMA_BDONE) 314 /* Only valid for GENETv3+ */ 315 #define UMAC_IRQ_MDIO_DONE (1 << 23) 316 #define UMAC_IRQ_MDIO_ERROR (1 << 24) 317 318 /* INTRL2 instance 1 definitions */ 319 #define UMAC_IRQ1_TX_INTR_MASK 0xFFFF 320 #define UMAC_IRQ1_RX_INTR_MASK 0xFFFF 321 #define UMAC_IRQ1_RX_INTR_SHIFT 16 322 323 /* Register block offsets */ 324 #define GENET_SYS_OFF 0x0000 325 #define GENET_GR_BRIDGE_OFF 0x0040 326 #define GENET_EXT_OFF 0x0080 327 #define GENET_INTRL2_0_OFF 0x0200 328 #define GENET_INTRL2_1_OFF 0x0240 329 #define GENET_RBUF_OFF 0x0300 330 #define GENET_UMAC_OFF 0x0800 331 332 /* SYS block offsets and register definitions */ 333 #define SYS_REV_CTRL 0x00 334 #define SYS_PORT_CTRL 0x04 335 #define PORT_MODE_INT_EPHY 0 336 #define PORT_MODE_INT_GPHY 1 337 #define PORT_MODE_EXT_EPHY 2 338 #define PORT_MODE_EXT_GPHY 3 339 #define PORT_MODE_EXT_RVMII_25 (4 | BIT(4)) 340 #define PORT_MODE_EXT_RVMII_50 4 341 #define LED_ACT_SOURCE_MAC (1 << 9) 342 343 #define SYS_RBUF_FLUSH_CTRL 0x08 344 #define SYS_TBUF_FLUSH_CTRL 0x0C 345 #define RBUF_FLUSH_CTRL_V1 0x04 346 347 /* Ext block register offsets and definitions */ 348 #define EXT_EXT_PWR_MGMT 0x00 349 #define EXT_PWR_DOWN_BIAS (1 << 0) 350 #define EXT_PWR_DOWN_DLL (1 << 1) 351 #define EXT_PWR_DOWN_PHY (1 << 2) 352 #define EXT_PWR_DN_EN_LD (1 << 3) 353 #define EXT_ENERGY_DET (1 << 4) 354 #define EXT_IDDQ_FROM_PHY (1 << 5) 355 #define EXT_PHY_RESET (1 << 8) 356 #define EXT_ENERGY_DET_MASK (1 << 12) 357 358 #define EXT_RGMII_OOB_CTRL 0x0C 359 #define RGMII_LINK (1 << 4) 360 #define OOB_DISABLE (1 << 5) 361 #define RGMII_MODE_EN (1 << 6) 362 #define ID_MODE_DIS (1 << 16) 363 364 #define EXT_GPHY_CTRL 0x1C 365 #define EXT_CFG_IDDQ_BIAS (1 << 0) 366 #define EXT_CFG_PWR_DOWN (1 << 1) 367 #define EXT_CK25_DIS (1 << 4) 368 #define EXT_GPHY_RESET (1 << 5) 369 370 /* DMA rings size */ 371 #define DMA_RING_SIZE (0x40) 372 #define DMA_RINGS_SIZE (DMA_RING_SIZE * (DESC_INDEX + 1)) 373 374 /* DMA registers common definitions */ 375 #define DMA_RW_POINTER_MASK 0x1FF 376 #define DMA_P_INDEX_DISCARD_CNT_MASK 0xFFFF 377 #define DMA_P_INDEX_DISCARD_CNT_SHIFT 16 378 #define DMA_BUFFER_DONE_CNT_MASK 0xFFFF 379 #define DMA_BUFFER_DONE_CNT_SHIFT 16 380 #define DMA_P_INDEX_MASK 0xFFFF 381 #define DMA_C_INDEX_MASK 0xFFFF 382 383 /* DMA ring size register */ 384 #define DMA_RING_SIZE_MASK 0xFFFF 385 #define DMA_RING_SIZE_SHIFT 16 386 #define DMA_RING_BUFFER_SIZE_MASK 0xFFFF 387 388 /* DMA interrupt threshold register */ 389 #define DMA_INTR_THRESHOLD_MASK 0x00FF 390 391 /* DMA XON/XOFF register */ 392 #define DMA_XON_THREHOLD_MASK 0xFFFF 393 #define DMA_XOFF_THRESHOLD_MASK 0xFFFF 394 #define DMA_XOFF_THRESHOLD_SHIFT 16 395 396 /* DMA flow period register */ 397 #define DMA_FLOW_PERIOD_MASK 0xFFFF 398 #define DMA_MAX_PKT_SIZE_MASK 0xFFFF 399 #define DMA_MAX_PKT_SIZE_SHIFT 16 400 401 402 /* DMA control register */ 403 #define DMA_EN (1 << 0) 404 #define DMA_RING_BUF_EN_SHIFT 0x01 405 #define DMA_RING_BUF_EN_MASK 0xFFFF 406 #define DMA_TSB_SWAP_EN (1 << 20) 407 408 /* DMA status register */ 409 #define DMA_DISABLED (1 << 0) 410 #define DMA_DESC_RAM_INIT_BUSY (1 << 1) 411 412 /* DMA SCB burst size register */ 413 #define DMA_SCB_BURST_SIZE_MASK 0x1F 414 415 /* DMA activity vector register */ 416 #define DMA_ACTIVITY_VECTOR_MASK 0x1FFFF 417 418 /* DMA backpressure mask register */ 419 #define DMA_BACKPRESSURE_MASK 0x1FFFF 420 #define DMA_PFC_ENABLE (1 << 31) 421 422 /* DMA backpressure status register */ 423 #define DMA_BACKPRESSURE_STATUS_MASK 0x1FFFF 424 425 /* DMA override register */ 426 #define DMA_LITTLE_ENDIAN_MODE (1 << 0) 427 #define DMA_REGISTER_MODE (1 << 1) 428 429 /* DMA timeout register */ 430 #define DMA_TIMEOUT_MASK 0xFFFF 431 #define DMA_TIMEOUT_VAL 5000 /* micro seconds */ 432 433 /* TDMA rate limiting control register */ 434 #define DMA_RATE_LIMIT_EN_MASK 0xFFFF 435 436 /* TDMA arbitration control register */ 437 #define DMA_ARBITER_MODE_MASK 0x03 438 #define DMA_RING_BUF_PRIORITY_MASK 0x1F 439 #define DMA_RING_BUF_PRIORITY_SHIFT 5 440 #define DMA_PRIO_REG_INDEX(q) ((q) / 6) 441 #define DMA_PRIO_REG_SHIFT(q) (((q) % 6) * DMA_RING_BUF_PRIORITY_SHIFT) 442 #define DMA_RATE_ADJ_MASK 0xFF 443 444 /* Tx/Rx Dma Descriptor common bits*/ 445 #define DMA_BUFLENGTH_MASK 0x0fff 446 #define DMA_BUFLENGTH_SHIFT 16 447 #define DMA_OWN 0x8000 448 #define DMA_EOP 0x4000 449 #define DMA_SOP 0x2000 450 #define DMA_WRAP 0x1000 451 /* Tx specific Dma descriptor bits */ 452 #define DMA_TX_UNDERRUN 0x0200 453 #define DMA_TX_APPEND_CRC 0x0040 454 #define DMA_TX_OW_CRC 0x0020 455 #define DMA_TX_DO_CSUM 0x0010 456 #define DMA_TX_QTAG_SHIFT 7 457 458 /* Rx Specific Dma descriptor bits */ 459 #define DMA_RX_CHK_V3PLUS 0x8000 460 #define DMA_RX_CHK_V12 0x1000 461 #define DMA_RX_BRDCAST 0x0040 462 #define DMA_RX_MULT 0x0020 463 #define DMA_RX_LG 0x0010 464 #define DMA_RX_NO 0x0008 465 #define DMA_RX_RXER 0x0004 466 #define DMA_RX_CRC_ERROR 0x0002 467 #define DMA_RX_OV 0x0001 468 #define DMA_RX_FI_MASK 0x001F 469 #define DMA_RX_FI_SHIFT 0x0007 470 #define DMA_DESC_ALLOC_MASK 0x00FF 471 472 #define DMA_ARBITER_RR 0x00 473 #define DMA_ARBITER_WRR 0x01 474 #define DMA_ARBITER_SP 0x02 475 476 struct enet_cb { 477 struct sk_buff *skb; 478 void __iomem *bd_addr; 479 DEFINE_DMA_UNMAP_ADDR(dma_addr); 480 DEFINE_DMA_UNMAP_LEN(dma_len); 481 }; 482 483 /* power management mode */ 484 enum bcmgenet_power_mode { 485 GENET_POWER_CABLE_SENSE = 0, 486 GENET_POWER_PASSIVE, 487 GENET_POWER_WOL_MAGIC, 488 }; 489 490 struct bcmgenet_priv; 491 492 /* We support both runtime GENET detection and compile-time 493 * to optimize code-paths for a given hardware 494 */ 495 enum bcmgenet_version { 496 GENET_V1 = 1, 497 GENET_V2, 498 GENET_V3, 499 GENET_V4 500 }; 501 502 #define GENET_IS_V1(p) ((p)->version == GENET_V1) 503 #define GENET_IS_V2(p) ((p)->version == GENET_V2) 504 #define GENET_IS_V3(p) ((p)->version == GENET_V3) 505 #define GENET_IS_V4(p) ((p)->version == GENET_V4) 506 507 /* Hardware flags */ 508 #define GENET_HAS_40BITS (1 << 0) 509 #define GENET_HAS_EXT (1 << 1) 510 #define GENET_HAS_MDIO_INTR (1 << 2) 511 #define GENET_HAS_MOCA_LINK_DET (1 << 3) 512 513 /* BCMGENET hardware parameters, keep this structure nicely aligned 514 * since it is going to be used in hot paths 515 */ 516 struct bcmgenet_hw_params { 517 u8 tx_queues; 518 u8 tx_bds_per_q; 519 u8 rx_queues; 520 u8 rx_bds_per_q; 521 u8 bp_in_en_shift; 522 u32 bp_in_mask; 523 u8 hfb_filter_cnt; 524 u8 hfb_filter_size; 525 u8 qtag_mask; 526 u16 tbuf_offset; 527 u32 hfb_offset; 528 u32 hfb_reg_offset; 529 u32 rdma_offset; 530 u32 tdma_offset; 531 u32 words_per_bd; 532 u32 flags; 533 }; 534 535 struct bcmgenet_tx_ring { 536 spinlock_t lock; /* ring lock */ 537 struct napi_struct napi; /* NAPI per tx queue */ 538 unsigned int index; /* ring index */ 539 unsigned int queue; /* queue index */ 540 struct enet_cb *cbs; /* tx ring buffer control block*/ 541 unsigned int size; /* size of each tx ring */ 542 unsigned int clean_ptr; /* Tx ring clean pointer */ 543 unsigned int c_index; /* last consumer index of each ring*/ 544 unsigned int free_bds; /* # of free bds for each ring */ 545 unsigned int write_ptr; /* Tx ring write pointer SW copy */ 546 unsigned int prod_index; /* Tx ring producer index SW copy */ 547 unsigned int cb_ptr; /* Tx ring initial CB ptr */ 548 unsigned int end_ptr; /* Tx ring end CB ptr */ 549 void (*int_enable)(struct bcmgenet_tx_ring *); 550 void (*int_disable)(struct bcmgenet_tx_ring *); 551 struct bcmgenet_priv *priv; 552 }; 553 554 struct bcmgenet_rx_ring { 555 struct napi_struct napi; /* Rx NAPI struct */ 556 unsigned int index; /* Rx ring index */ 557 struct enet_cb *cbs; /* Rx ring buffer control block */ 558 unsigned int size; /* Rx ring size */ 559 unsigned int c_index; /* Rx last consumer index */ 560 unsigned int read_ptr; /* Rx ring read pointer */ 561 unsigned int cb_ptr; /* Rx ring initial CB ptr */ 562 unsigned int end_ptr; /* Rx ring end CB ptr */ 563 unsigned int old_discards; 564 void (*int_enable)(struct bcmgenet_rx_ring *); 565 void (*int_disable)(struct bcmgenet_rx_ring *); 566 struct bcmgenet_priv *priv; 567 }; 568 569 /* device context */ 570 struct bcmgenet_priv { 571 void __iomem *base; 572 enum bcmgenet_version version; 573 struct net_device *dev; 574 575 /* transmit variables */ 576 void __iomem *tx_bds; 577 struct enet_cb *tx_cbs; 578 unsigned int num_tx_bds; 579 580 struct bcmgenet_tx_ring tx_rings[DESC_INDEX + 1]; 581 582 /* receive variables */ 583 void __iomem *rx_bds; 584 struct enet_cb *rx_cbs; 585 unsigned int num_rx_bds; 586 unsigned int rx_buf_len; 587 588 struct bcmgenet_rx_ring rx_rings[DESC_INDEX + 1]; 589 590 /* other misc variables */ 591 struct bcmgenet_hw_params *hw_params; 592 593 /* MDIO bus variables */ 594 wait_queue_head_t wq; 595 struct phy_device *phydev; 596 struct device_node *phy_dn; 597 struct device_node *mdio_dn; 598 struct mii_bus *mii_bus; 599 u16 gphy_rev; 600 struct clk *clk_eee; 601 bool clk_eee_enabled; 602 603 /* PHY device variables */ 604 int old_link; 605 int old_speed; 606 int old_duplex; 607 int old_pause; 608 phy_interface_t phy_interface; 609 int phy_addr; 610 int ext_phy; 611 612 /* Interrupt variables */ 613 struct work_struct bcmgenet_irq_work; 614 int irq0; 615 int irq1; 616 unsigned int irq0_stat; 617 unsigned int irq1_stat; 618 int wol_irq; 619 bool wol_irq_disabled; 620 621 /* HW descriptors/checksum variables */ 622 bool desc_64b_en; 623 bool desc_rxchk_en; 624 bool crc_fwd_en; 625 626 unsigned int dma_rx_chk_bit; 627 628 u32 msg_enable; 629 630 struct clk *clk; 631 struct platform_device *pdev; 632 633 /* WOL */ 634 struct clk *clk_wol; 635 u32 wolopts; 636 637 struct bcmgenet_mib_counters mib; 638 639 struct ethtool_eee eee; 640 }; 641 642 #define GENET_IO_MACRO(name, offset) \ 643 static inline u32 bcmgenet_##name##_readl(struct bcmgenet_priv *priv, \ 644 u32 off) \ 645 { \ 646 return __raw_readl(priv->base + offset + off); \ 647 } \ 648 static inline void bcmgenet_##name##_writel(struct bcmgenet_priv *priv, \ 649 u32 val, u32 off) \ 650 { \ 651 __raw_writel(val, priv->base + offset + off); \ 652 } 653 654 GENET_IO_MACRO(ext, GENET_EXT_OFF); 655 GENET_IO_MACRO(umac, GENET_UMAC_OFF); 656 GENET_IO_MACRO(sys, GENET_SYS_OFF); 657 658 /* interrupt l2 registers accessors */ 659 GENET_IO_MACRO(intrl2_0, GENET_INTRL2_0_OFF); 660 GENET_IO_MACRO(intrl2_1, GENET_INTRL2_1_OFF); 661 662 /* HFB register accessors */ 663 GENET_IO_MACRO(hfb, priv->hw_params->hfb_offset); 664 665 /* GENET v2+ HFB control and filter len helpers */ 666 GENET_IO_MACRO(hfb_reg, priv->hw_params->hfb_reg_offset); 667 668 /* RBUF register accessors */ 669 GENET_IO_MACRO(rbuf, GENET_RBUF_OFF); 670 671 /* MDIO routines */ 672 int bcmgenet_mii_init(struct net_device *dev); 673 int bcmgenet_mii_config(struct net_device *dev, bool init); 674 void bcmgenet_mii_exit(struct net_device *dev); 675 void bcmgenet_phy_power_set(struct net_device *dev, bool enable); 676 void bcmgenet_mii_setup(struct net_device *dev); 677 678 /* Wake-on-LAN routines */ 679 void bcmgenet_get_wol(struct net_device *dev, struct ethtool_wolinfo *wol); 680 int bcmgenet_set_wol(struct net_device *dev, struct ethtool_wolinfo *wol); 681 int bcmgenet_wol_power_down_cfg(struct bcmgenet_priv *priv, 682 enum bcmgenet_power_mode mode); 683 void bcmgenet_wol_power_up_cfg(struct bcmgenet_priv *priv, 684 enum bcmgenet_power_mode mode); 685 686 #endif /* __BCMGENET_H__ */ 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