projects / deliverable / linux.git / blame
| Commit | Line | Data |
|---|---|---|
| b4af9a55 FF |
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. | |
| 5e811b39 FF |
7 | */ |
| 8 | ||
| b4af9a55 FF |
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; | |
| 44c8bc3c FF |
146 | u32 alloc_rx_buff_failed; |
| 147 | u32 rx_dma_failed; | |
| 148 | u32 tx_dma_failed; | |
| b4af9a55 FF |
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 | ||
| d0a6db8d FF |
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 | ||
| b4af9a55 FF |
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 | ||
| d0a6db8d FF |
250 | #define RBUF_ENERGY_CTRL 0x9c |
| 251 | #define RBUF_EEE_EN (1 << 0) | |
| 252 | #define RBUF_PM_EN (1 << 1) | |
| 253 | ||
| b4af9a55 FF |
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 | |
| d0a6db8d FF |
269 | #define TBUF_ENERGY_CTRL 0x14 |
| 270 | #define TBUF_EEE_EN (1 << 0) | |
| 271 | #define TBUF_PM_EN (1 << 1) | |
| b4af9a55 FF |
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_UMAC (1 << 6) | |
| 297 | #define UMAC_IRQ_UMAC_TSV (1 << 7) | |
| 298 | #define UMAC_IRQ_TBUF_UNDERRUN (1 << 8) | |
| 299 | #define UMAC_IRQ_RBUF_OVERFLOW (1 << 9) | |
| 300 | #define UMAC_IRQ_HFB_SM (1 << 10) | |
| 301 | #define UMAC_IRQ_HFB_MM (1 << 11) | |
| 302 | #define UMAC_IRQ_MPD_R (1 << 12) | |
| 303 | #define UMAC_IRQ_RXDMA_MBDONE (1 << 13) | |
| 304 | #define UMAC_IRQ_RXDMA_PDONE (1 << 14) | |
| 305 | #define UMAC_IRQ_RXDMA_BDONE (1 << 15) | |
| 306 | #define UMAC_IRQ_TXDMA_MBDONE (1 << 16) | |
| 307 | #define UMAC_IRQ_TXDMA_PDONE (1 << 17) | |
| 308 | #define UMAC_IRQ_TXDMA_BDONE (1 << 18) | |
| 309 | /* Only valid for GENETv3+ */ | |
| 310 | #define UMAC_IRQ_MDIO_DONE (1 << 23) | |
| 311 | #define UMAC_IRQ_MDIO_ERROR (1 << 24) | |
| 312 | ||
| 313 | /* Register block offsets */ | |
| 314 | #define GENET_SYS_OFF 0x0000 | |
| 315 | #define GENET_GR_BRIDGE_OFF 0x0040 | |
| 316 | #define GENET_EXT_OFF 0x0080 | |
| 317 | #define GENET_INTRL2_0_OFF 0x0200 | |
| 318 | #define GENET_INTRL2_1_OFF 0x0240 | |
| 319 | #define GENET_RBUF_OFF 0x0300 | |
| 320 | #define GENET_UMAC_OFF 0x0800 | |
| 321 | ||
| 322 | /* SYS block offsets and register definitions */ | |
| 323 | #define SYS_REV_CTRL 0x00 | |
| 324 | #define SYS_PORT_CTRL 0x04 | |
| 325 | #define PORT_MODE_INT_EPHY 0 | |
| 326 | #define PORT_MODE_INT_GPHY 1 | |
| 327 | #define PORT_MODE_EXT_EPHY 2 | |
| 328 | #define PORT_MODE_EXT_GPHY 3 | |
| 329 | #define PORT_MODE_EXT_RVMII_25 (4 | BIT(4)) | |
| 330 | #define PORT_MODE_EXT_RVMII_50 4 | |
| 331 | #define LED_ACT_SOURCE_MAC (1 << 9) | |
| 332 | ||
| 333 | #define SYS_RBUF_FLUSH_CTRL 0x08 | |
| 334 | #define SYS_TBUF_FLUSH_CTRL 0x0C | |
| 335 | #define RBUF_FLUSH_CTRL_V1 0x04 | |
| 336 | ||
| 337 | /* Ext block register offsets and definitions */ | |
| 338 | #define EXT_EXT_PWR_MGMT 0x00 | |
| 339 | #define EXT_PWR_DOWN_BIAS (1 << 0) | |
| 340 | #define EXT_PWR_DOWN_DLL (1 << 1) | |
| 341 | #define EXT_PWR_DOWN_PHY (1 << 2) | |
| 342 | #define EXT_PWR_DN_EN_LD (1 << 3) | |
| 343 | #define EXT_ENERGY_DET (1 << 4) | |
| 344 | #define EXT_IDDQ_FROM_PHY (1 << 5) | |
| 345 | #define EXT_PHY_RESET (1 << 8) | |
| 346 | #define EXT_ENERGY_DET_MASK (1 << 12) | |
| 347 | ||
| 348 | #define EXT_RGMII_OOB_CTRL 0x0C | |
| b4af9a55 FF |
349 | #define RGMII_LINK (1 << 4) |
| 350 | #define OOB_DISABLE (1 << 5) | |
| 5a680fad | 351 | #define RGMII_MODE_EN (1 << 6) |
| b4af9a55 FF |
352 | #define ID_MODE_DIS (1 << 16) |
| 353 | ||
| 354 | #define EXT_GPHY_CTRL 0x1C | |
| 355 | #define EXT_CFG_IDDQ_BIAS (1 << 0) | |
| 356 | #define EXT_CFG_PWR_DOWN (1 << 1) | |
| 357 | #define EXT_GPHY_RESET (1 << 5) | |
| 358 | ||
| 359 | /* DMA rings size */ | |
| 360 | #define DMA_RING_SIZE (0x40) | |
| 361 | #define DMA_RINGS_SIZE (DMA_RING_SIZE * (DESC_INDEX + 1)) | |
| 362 | ||
| 363 | /* DMA registers common definitions */ | |
| 364 | #define DMA_RW_POINTER_MASK 0x1FF | |
| 365 | #define DMA_P_INDEX_DISCARD_CNT_MASK 0xFFFF | |
| 366 | #define DMA_P_INDEX_DISCARD_CNT_SHIFT 16 | |
| 367 | #define DMA_BUFFER_DONE_CNT_MASK 0xFFFF | |
| 368 | #define DMA_BUFFER_DONE_CNT_SHIFT 16 | |
| 369 | #define DMA_P_INDEX_MASK 0xFFFF | |
| 370 | #define DMA_C_INDEX_MASK 0xFFFF | |
| 371 | ||
| 372 | /* DMA ring size register */ | |
| 373 | #define DMA_RING_SIZE_MASK 0xFFFF | |
| 374 | #define DMA_RING_SIZE_SHIFT 16 | |
| 375 | #define DMA_RING_BUFFER_SIZE_MASK 0xFFFF | |
| 376 | ||
| 377 | /* DMA interrupt threshold register */ | |
| 378 | #define DMA_INTR_THRESHOLD_MASK 0x00FF | |
| 379 | ||
| 380 | /* DMA XON/XOFF register */ | |
| 381 | #define DMA_XON_THREHOLD_MASK 0xFFFF | |
| 382 | #define DMA_XOFF_THRESHOLD_MASK 0xFFFF | |
| 383 | #define DMA_XOFF_THRESHOLD_SHIFT 16 | |
| 384 | ||
| 385 | /* DMA flow period register */ | |
| 386 | #define DMA_FLOW_PERIOD_MASK 0xFFFF | |
| 387 | #define DMA_MAX_PKT_SIZE_MASK 0xFFFF | |
| 388 | #define DMA_MAX_PKT_SIZE_SHIFT 16 | |
| 389 | ||
| 390 | ||
| 391 | /* DMA control register */ | |
| 392 | #define DMA_EN (1 << 0) | |
| 393 | #define DMA_RING_BUF_EN_SHIFT 0x01 | |
| 394 | #define DMA_RING_BUF_EN_MASK 0xFFFF | |
| 395 | #define DMA_TSB_SWAP_EN (1 << 20) | |
| 396 | ||
| 397 | /* DMA status register */ | |
| 398 | #define DMA_DISABLED (1 << 0) | |
| 399 | #define DMA_DESC_RAM_INIT_BUSY (1 << 1) | |
| 400 | ||
| 401 | /* DMA SCB burst size register */ | |
| 402 | #define DMA_SCB_BURST_SIZE_MASK 0x1F | |
| 403 | ||
| 404 | /* DMA activity vector register */ | |
| 405 | #define DMA_ACTIVITY_VECTOR_MASK 0x1FFFF | |
| 406 | ||
| 407 | /* DMA backpressure mask register */ | |
| 408 | #define DMA_BACKPRESSURE_MASK 0x1FFFF | |
| 409 | #define DMA_PFC_ENABLE (1 << 31) | |
| 410 | ||
| 411 | /* DMA backpressure status register */ | |
| 412 | #define DMA_BACKPRESSURE_STATUS_MASK 0x1FFFF | |
| 413 | ||
| 414 | /* DMA override register */ | |
| 415 | #define DMA_LITTLE_ENDIAN_MODE (1 << 0) | |
| 416 | #define DMA_REGISTER_MODE (1 << 1) | |
| 417 | ||
| 418 | /* DMA timeout register */ | |
| 419 | #define DMA_TIMEOUT_MASK 0xFFFF | |
| 420 | #define DMA_TIMEOUT_VAL 5000 /* micro seconds */ | |
| 421 | ||
| 422 | /* TDMA rate limiting control register */ | |
| 423 | #define DMA_RATE_LIMIT_EN_MASK 0xFFFF | |
| 424 | ||
| 425 | /* TDMA arbitration control register */ | |
| 426 | #define DMA_ARBITER_MODE_MASK 0x03 | |
| 427 | #define DMA_RING_BUF_PRIORITY_MASK 0x1F | |
| 428 | #define DMA_RING_BUF_PRIORITY_SHIFT 5 | |
| 37742166 PG |
429 | #define DMA_PRIO_REG_INDEX(q) ((q) / 6) |
| 430 | #define DMA_PRIO_REG_SHIFT(q) (((q) % 6) * DMA_RING_BUF_PRIORITY_SHIFT) | |
| b4af9a55 FF |
431 | #define DMA_RATE_ADJ_MASK 0xFF |
| 432 | ||
| 433 | /* Tx/Rx Dma Descriptor common bits*/ | |
| 434 | #define DMA_BUFLENGTH_MASK 0x0fff | |
| 435 | #define DMA_BUFLENGTH_SHIFT 16 | |
| 436 | #define DMA_OWN 0x8000 | |
| 437 | #define DMA_EOP 0x4000 | |
| 438 | #define DMA_SOP 0x2000 | |
| 439 | #define DMA_WRAP 0x1000 | |
| 440 | /* Tx specific Dma descriptor bits */ | |
| 441 | #define DMA_TX_UNDERRUN 0x0200 | |
| 442 | #define DMA_TX_APPEND_CRC 0x0040 | |
| 443 | #define DMA_TX_OW_CRC 0x0020 | |
| 444 | #define DMA_TX_DO_CSUM 0x0010 | |
| 445 | #define DMA_TX_QTAG_SHIFT 7 | |
| 446 | ||
| 447 | /* Rx Specific Dma descriptor bits */ | |
| 448 | #define DMA_RX_CHK_V3PLUS 0x8000 | |
| 449 | #define DMA_RX_CHK_V12 0x1000 | |
| 450 | #define DMA_RX_BRDCAST 0x0040 | |
| 451 | #define DMA_RX_MULT 0x0020 | |
| 452 | #define DMA_RX_LG 0x0010 | |
| 453 | #define DMA_RX_NO 0x0008 | |
| 454 | #define DMA_RX_RXER 0x0004 | |
| 455 | #define DMA_RX_CRC_ERROR 0x0002 | |
| 456 | #define DMA_RX_OV 0x0001 | |
| 457 | #define DMA_RX_FI_MASK 0x001F | |
| 458 | #define DMA_RX_FI_SHIFT 0x0007 | |
| 459 | #define DMA_DESC_ALLOC_MASK 0x00FF | |
| 460 | ||
| 461 | #define DMA_ARBITER_RR 0x00 | |
| 462 | #define DMA_ARBITER_WRR 0x01 | |
| 463 | #define DMA_ARBITER_SP 0x02 | |
| 464 | ||
| 465 | struct enet_cb { | |
| 466 | struct sk_buff *skb; | |
| 467 | void __iomem *bd_addr; | |
| 468 | DEFINE_DMA_UNMAP_ADDR(dma_addr); | |
| 469 | DEFINE_DMA_UNMAP_LEN(dma_len); | |
| 470 | }; | |
| 471 | ||
| 472 | /* power management mode */ | |
| 473 | enum bcmgenet_power_mode { | |
| 474 | GENET_POWER_CABLE_SENSE = 0, | |
| 475 | GENET_POWER_PASSIVE, | |
| c51de7f3 | 476 | GENET_POWER_WOL_MAGIC, |
| b4af9a55 FF |
477 | }; |
| 478 | ||
| 479 | struct bcmgenet_priv; | |
| 480 | ||
| 481 | /* We support both runtime GENET detection and compile-time | |
| 482 | * to optimize code-paths for a given hardware | |
| 483 | */ | |
| 484 | enum bcmgenet_version { | |
| 485 | GENET_V1 = 1, | |
| 486 | GENET_V2, | |
| 487 | GENET_V3, | |
| 488 | GENET_V4 | |
| 489 | }; | |
| 490 | ||
| 491 | #define GENET_IS_V1(p) ((p)->version == GENET_V1) | |
| 492 | #define GENET_IS_V2(p) ((p)->version == GENET_V2) | |
| 493 | #define GENET_IS_V3(p) ((p)->version == GENET_V3) | |
| 494 | #define GENET_IS_V4(p) ((p)->version == GENET_V4) | |
| 495 | ||
| 496 | /* Hardware flags */ | |
| 497 | #define GENET_HAS_40BITS (1 << 0) | |
| 498 | #define GENET_HAS_EXT (1 << 1) | |
| 499 | #define GENET_HAS_MDIO_INTR (1 << 2) | |
| 500 | ||
| 501 | /* BCMGENET hardware parameters, keep this structure nicely aligned | |
| 502 | * since it is going to be used in hot paths | |
| 503 | */ | |
| 504 | struct bcmgenet_hw_params { | |
| 505 | u8 tx_queues; | |
| 506 | u8 rx_queues; | |
| 507 | u8 bds_cnt; | |
| 508 | u8 bp_in_en_shift; | |
| 509 | u32 bp_in_mask; | |
| 510 | u8 hfb_filter_cnt; | |
| 511 | u8 qtag_mask; | |
| 512 | u16 tbuf_offset; | |
| 513 | u32 hfb_offset; | |
| 514 | u32 hfb_reg_offset; | |
| 515 | u32 rdma_offset; | |
| 516 | u32 tdma_offset; | |
| 517 | u32 words_per_bd; | |
| 518 | u32 flags; | |
| 519 | }; | |
| 520 | ||
| 521 | struct bcmgenet_tx_ring { | |
| 522 | spinlock_t lock; /* ring lock */ | |
| 523 | unsigned int index; /* ring index */ | |
| 524 | unsigned int queue; /* queue index */ | |
| 525 | struct enet_cb *cbs; /* tx ring buffer control block*/ | |
| 526 | unsigned int size; /* size of each tx ring */ | |
| 527 | unsigned int c_index; /* last consumer index of each ring*/ | |
| 528 | unsigned int free_bds; /* # of free bds for each ring */ | |
| 529 | unsigned int write_ptr; /* Tx ring write pointer SW copy */ | |
| 530 | unsigned int prod_index; /* Tx ring producer index SW copy */ | |
| 531 | unsigned int cb_ptr; /* Tx ring initial CB ptr */ | |
| 532 | unsigned int end_ptr; /* Tx ring end CB ptr */ | |
| 533 | void (*int_enable)(struct bcmgenet_priv *priv, | |
| c91b7f66 | 534 | struct bcmgenet_tx_ring *); |
| b4af9a55 | 535 | void (*int_disable)(struct bcmgenet_priv *priv, |
| c91b7f66 | 536 | struct bcmgenet_tx_ring *); |
| b4af9a55 FF |
537 | }; |
| 538 | ||
| 539 | /* device context */ | |
| 540 | struct bcmgenet_priv { | |
| 541 | void __iomem *base; | |
| 542 | enum bcmgenet_version version; | |
| 543 | struct net_device *dev; | |
| b4af9a55 FF |
544 | u32 int0_mask; |
| 545 | u32 int1_mask; | |
| 546 | ||
| 547 | /* NAPI for descriptor based rx */ | |
| 548 | struct napi_struct napi ____cacheline_aligned; | |
| 549 | ||
| 550 | /* transmit variables */ | |
| 551 | void __iomem *tx_bds; | |
| 552 | struct enet_cb *tx_cbs; | |
| 553 | unsigned int num_tx_bds; | |
| 554 | ||
| 555 | struct bcmgenet_tx_ring tx_rings[DESC_INDEX + 1]; | |
| 556 | ||
| 557 | /* receive variables */ | |
| 558 | void __iomem *rx_bds; | |
| 559 | void __iomem *rx_bd_assign_ptr; | |
| 560 | int rx_bd_assign_index; | |
| 561 | struct enet_cb *rx_cbs; | |
| 562 | unsigned int num_rx_bds; | |
| 563 | unsigned int rx_buf_len; | |
| 564 | unsigned int rx_read_ptr; | |
| 565 | unsigned int rx_c_index; | |
| 566 | ||
| 567 | /* other misc variables */ | |
| 568 | struct bcmgenet_hw_params *hw_params; | |
| 569 | ||
| 570 | /* MDIO bus variables */ | |
| 571 | wait_queue_head_t wq; | |
| 572 | struct phy_device *phydev; | |
| 573 | struct device_node *phy_dn; | |
| 574 | struct mii_bus *mii_bus; | |
| 487320c5 | 575 | u16 gphy_rev; |
| 6ef398ea FF |
576 | struct clk *clk_eee; |
| 577 | bool clk_eee_enabled; | |
| b4af9a55 FF |
578 | |
| 579 | /* PHY device variables */ | |
| b4af9a55 | 580 | int old_link; |
| 5ad6e6c5 PG |
581 | int old_speed; |
| 582 | int old_duplex; | |
| b4af9a55 FF |
583 | int old_pause; |
| 584 | phy_interface_t phy_interface; | |
| 585 | int phy_addr; | |
| 586 | int ext_phy; | |
| 587 | ||
| 588 | /* Interrupt variables */ | |
| 589 | struct work_struct bcmgenet_irq_work; | |
| 590 | int irq0; | |
| 591 | int irq1; | |
| 592 | unsigned int irq0_stat; | |
| 593 | unsigned int irq1_stat; | |
| 8562056f FF |
594 | int wol_irq; |
| 595 | bool wol_irq_disabled; | |
| b4af9a55 FF |
596 | |
| 597 | /* HW descriptors/checksum variables */ | |
| 598 | bool desc_64b_en; | |
| 599 | bool desc_rxchk_en; | |
| 600 | bool crc_fwd_en; | |
| 601 | ||
| 602 | unsigned int dma_rx_chk_bit; | |
| 603 | ||
| 604 | u32 msg_enable; | |
| 605 | ||
| 606 | struct clk *clk; | |
| 607 | struct platform_device *pdev; | |
| 608 | ||
| 609 | /* WOL */ | |
| b4af9a55 FF |
610 | struct clk *clk_wol; |
| 611 | u32 wolopts; | |
| 612 | ||
| 613 | struct bcmgenet_mib_counters mib; | |
| 6ef398ea FF |
614 | |
| 615 | struct ethtool_eee eee; | |
| b4af9a55 FF |
616 | }; |
| 617 | ||
| 618 | #define GENET_IO_MACRO(name, offset) \ | |
| 619 | static inline u32 bcmgenet_##name##_readl(struct bcmgenet_priv *priv, \ | |
| 620 | u32 off) \ | |
| 621 | { \ | |
| 622 | return __raw_readl(priv->base + offset + off); \ | |
| 623 | } \ | |
| 624 | static inline void bcmgenet_##name##_writel(struct bcmgenet_priv *priv, \ | |
| 625 | u32 val, u32 off) \ | |
| 626 | { \ | |
| 627 | __raw_writel(val, priv->base + offset + off); \ | |
| 628 | } | |
| 629 | ||
| 630 | GENET_IO_MACRO(ext, GENET_EXT_OFF); | |
| 631 | GENET_IO_MACRO(umac, GENET_UMAC_OFF); | |
| 632 | GENET_IO_MACRO(sys, GENET_SYS_OFF); | |
| 633 | ||
| 634 | /* interrupt l2 registers accessors */ | |
| 635 | GENET_IO_MACRO(intrl2_0, GENET_INTRL2_0_OFF); | |
| 636 | GENET_IO_MACRO(intrl2_1, GENET_INTRL2_1_OFF); | |
| 637 | ||
| 638 | /* HFB register accessors */ | |
| 639 | GENET_IO_MACRO(hfb, priv->hw_params->hfb_offset); | |
| 640 | ||
| 641 | /* GENET v2+ HFB control and filter len helpers */ | |
| 642 | GENET_IO_MACRO(hfb_reg, priv->hw_params->hfb_reg_offset); | |
| 643 | ||
| 644 | /* RBUF register accessors */ | |
| 645 | GENET_IO_MACRO(rbuf, GENET_RBUF_OFF); | |
| 646 | ||
| 647 | /* MDIO routines */ | |
| 648 | int bcmgenet_mii_init(struct net_device *dev); | |
| dbd479db | 649 | int bcmgenet_mii_config(struct net_device *dev, bool init); |
| b4af9a55 FF |
650 | void bcmgenet_mii_exit(struct net_device *dev); |
| 651 | void bcmgenet_mii_reset(struct net_device *dev); | |
| c96e731c | 652 | void bcmgenet_mii_setup(struct net_device *dev); |
| b4af9a55 | 653 | |
| c51de7f3 FF |
654 | /* Wake-on-LAN routines */ |
| 655 | void bcmgenet_get_wol(struct net_device *dev, struct ethtool_wolinfo *wol); | |
| 656 | int bcmgenet_set_wol(struct net_device *dev, struct ethtool_wolinfo *wol); | |
| 657 | int bcmgenet_wol_power_down_cfg(struct bcmgenet_priv *priv, | |
| 658 | enum bcmgenet_power_mode mode); | |
| 659 | void bcmgenet_wol_power_up_cfg(struct bcmgenet_priv *priv, | |
| 660 | enum bcmgenet_power_mode mode); | |
| 661 | ||
| b4af9a55 | 662 | #endif /* __BCMGENET_H__ */ |