LXR linux/drivers/net/ethernet/atheros/atlx/atl2.h

   1/* atl2.h -- atl2 driver definitions
   2 *
   3 * Copyright(c) 2007 Atheros Corporation. All rights reserved.
   4 * Copyright(c) 2006 xiong huang <xiong.huang@atheros.com>
   5 * Copyright(c) 2007 Chris Snook <csnook@redhat.com>
   6 *
   7 * Derived from Intel e1000 driver
   8 * Copyright(c) 1999 - 2005 Intel Corporation. All rights reserved.
   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 Free
  12 * Software Foundation; either version 2 of the License, or (at your option)
  13 * 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 for
  18 * more details.
  19 *
  20 * You should have received a copy of the GNU General Public License along with
  21 * this program; if not, write to the Free Software Foundation, Inc., 59
  22 * Temple Place - Suite 330, Boston, MA  02111-1307, USA.
  23 */
  24
  25#ifndef _ATL2_H_
  26#define _ATL2_H_
  27
  28#include <linux/atomic.h>
  29#include <linux/netdevice.h>
  30
  31#ifndef _ATL2_HW_H_
  32#define _ATL2_HW_H_
  33
  34#ifndef _ATL2_OSDEP_H_
  35#define _ATL2_OSDEP_H_
  36
  37#include <linux/pci.h>
  38#include <linux/delay.h>
  39#include <linux/interrupt.h>
  40#include <linux/if_ether.h>
  41
  42#include "atlx.h"
  43
  44#ifdef ETHTOOL_OPS_COMPAT
  45int ethtool_ioctl(struct ifreq *ifr);
  46#endif
  47
  48#define PCI_COMMAND_REGISTER    PCI_COMMAND
  49#define CMD_MEM_WRT_INVALIDATE  PCI_COMMAND_INVALIDATE
  50
  51#define ATL2_WRITE_REG(a, reg, value) (iowrite32((value), \
  52        ((a)->hw_addr + (reg))))
  53
  54#define ATL2_WRITE_FLUSH(a) (ioread32((a)->hw_addr))
  55
  56#define ATL2_READ_REG(a, reg) (ioread32((a)->hw_addr + (reg)))
  57
  58#define ATL2_WRITE_REGB(a, reg, value) (iowrite8((value), \
  59        ((a)->hw_addr + (reg))))
  60
  61#define ATL2_READ_REGB(a, reg) (ioread8((a)->hw_addr + (reg)))
  62
  63#define ATL2_WRITE_REGW(a, reg, value) (iowrite16((value), \
  64        ((a)->hw_addr + (reg))))
  65
  66#define ATL2_READ_REGW(a, reg) (ioread16((a)->hw_addr + (reg)))
  67
  68#define ATL2_WRITE_REG_ARRAY(a, reg, offset, value) \
  69        (iowrite32((value), (((a)->hw_addr + (reg)) + ((offset) << 2))))
  70
  71#define ATL2_READ_REG_ARRAY(a, reg, offset) \
  72        (ioread32(((a)->hw_addr + (reg)) + ((offset) << 2)))
  73
  74#endif /* _ATL2_OSDEP_H_ */
  75
  76struct atl2_adapter;
  77struct atl2_hw;
  78
  79/* function prototype */
  80static s32 atl2_reset_hw(struct atl2_hw *hw);
  81static s32 atl2_read_mac_addr(struct atl2_hw *hw);
  82static s32 atl2_init_hw(struct atl2_hw *hw);
  83static s32 atl2_get_speed_and_duplex(struct atl2_hw *hw, u16 *speed,
  84        u16 *duplex);
  85static u32 atl2_hash_mc_addr(struct atl2_hw *hw, u8 *mc_addr);
  86static void atl2_hash_set(struct atl2_hw *hw, u32 hash_value);
  87static s32 atl2_read_phy_reg(struct atl2_hw *hw, u16 reg_addr, u16 *phy_data);
  88static s32 atl2_write_phy_reg(struct atl2_hw *hw, u32 reg_addr, u16 phy_data);
  89static void atl2_read_pci_cfg(struct atl2_hw *hw, u32 reg, u16 *value);
  90static void atl2_write_pci_cfg(struct atl2_hw *hw, u32 reg, u16 *value);
  91static void atl2_set_mac_addr(struct atl2_hw *hw);
  92static bool atl2_read_eeprom(struct atl2_hw *hw, u32 Offset, u32 *pValue);
  93static bool atl2_write_eeprom(struct atl2_hw *hw, u32 offset, u32 value);
  94static s32 atl2_phy_init(struct atl2_hw *hw);
  95static int atl2_check_eeprom_exist(struct atl2_hw *hw);
  96static void atl2_force_ps(struct atl2_hw *hw);
  97
  98/* register definition */
  99
 100/* Block IDLE Status Register */
 101#define IDLE_STATUS_RXMAC       1       /* 1: RXMAC is non-IDLE */
 102#define IDLE_STATUS_TXMAC       2       /* 1: TXMAC is non-IDLE */
 103#define IDLE_STATUS_DMAR        8       /* 1: DMAR is non-IDLE */
 104#define IDLE_STATUS_DMAW        4       /* 1: DMAW is non-IDLE */
 105
 106/* MDIO Control Register */
 107#define MDIO_WAIT_TIMES         10
 108
 109/* MAC Control Register */
 110#define MAC_CTRL_DBG_TX_BKPRESURE       0x100000        /* 1: TX max backoff */
 111#define MAC_CTRL_MACLP_CLK_PHY          0x8000000       /* 1: 25MHz from phy */
 112#define MAC_CTRL_HALF_LEFT_BUF_SHIFT    28
 113#define MAC_CTRL_HALF_LEFT_BUF_MASK     0xF             /* MAC retry buf x32B */
 114
 115/* Internal SRAM Partition Register */
 116#define REG_SRAM_TXRAM_END      0x1500  /* Internal tail address of TXRAM
 117                                         * default: 2byte*1024 */
 118#define REG_SRAM_RXRAM_END      0x1502  /* Internal tail address of RXRAM
 119                                         * default: 2byte*1024 */
 120
 121/* Descriptor Control register */
 122#define REG_TXD_BASE_ADDR_LO    0x1544  /* The base address of the Transmit
 123                                         * Data Mem low 32-bit(dword align) */
 124#define REG_TXD_MEM_SIZE        0x1548  /* Transmit Data Memory size(by
 125                                         * double word , max 256KB) */
 126#define REG_TXS_BASE_ADDR_LO    0x154C  /* The base address of the Transmit
 127                                         * Status Memory low 32-bit(dword word
 128                                         * align) */
 129#define REG_TXS_MEM_SIZE        0x1550  /* double word unit, max 4*2047
 130                                         * bytes. */
 131#define REG_RXD_BASE_ADDR_LO    0x1554  /* The base address of the Transmit
 132                                         * Status Memory low 32-bit(unit 8
 133                                         * bytes) */
 134#define REG_RXD_BUF_NUM         0x1558  /* Receive Data & Status Memory buffer
 135                                         * number (unit 1536bytes, max
 136                                         * 1536*2047) */
 137
 138/* DMAR Control Register */
 139#define REG_DMAR        0x1580
 140#define     DMAR_EN     0x1     /* 1: Enable DMAR */
 141
 142/* TX Cur-Through (early tx threshold) Control Register */
 143#define REG_TX_CUT_THRESH       0x1590  /* TxMac begin transmit packet
 144                                         * threshold(unit word) */
 145
 146/* DMAW Control Register */
 147#define REG_DMAW        0x15A0
 148#define     DMAW_EN     0x1
 149
 150/* Flow control register */
 151#define REG_PAUSE_ON_TH         0x15A8  /* RXD high watermark of overflow
 152                                         * threshold configuration register */
 153#define REG_PAUSE_OFF_TH        0x15AA  /* RXD lower watermark of overflow
 154                                         * threshold configuration register */
 155
 156/* Mailbox Register */
 157#define REG_MB_TXD_WR_IDX       0x15f0  /* double word align */
 158#define REG_MB_RXD_RD_IDX       0x15F4  /* RXD Read index (unit: 1536byets) */
 159
 160/* Interrupt Status Register */
 161#define ISR_TIMER       1       /* Interrupt when Timer counts down to zero */
 162#define ISR_MANUAL      2       /* Software manual interrupt, for debug. Set
 163                                 * when SW_MAN_INT_EN is set in Table 51
 164                                 * Selene Master Control Register
 165                                 * (Offset 0x1400). */
 166#define ISR_RXF_OV      4       /* RXF overflow interrupt */
 167#define ISR_TXF_UR      8       /* TXF underrun interrupt */
 168#define ISR_TXS_OV      0x10    /* Internal transmit status buffer full
 169                                 * interrupt */
 170#define ISR_RXS_OV      0x20    /* Internal receive status buffer full
 171                                 * interrupt */
 172#define ISR_LINK_CHG    0x40    /* Link Status Change Interrupt */
 173#define ISR_HOST_TXD_UR 0x80
 174#define ISR_HOST_RXD_OV 0x100   /* Host rx data memory full , one pulse */
 175#define ISR_DMAR_TO_RST 0x200   /* DMAR op timeout interrupt. SW should
 176                                 * do Reset */
 177#define ISR_DMAW_TO_RST 0x400
 178#define ISR_PHY         0x800   /* phy interrupt */
 179#define ISR_TS_UPDATE   0x10000 /* interrupt after new tx pkt status written
 180                                 * to host */
 181#define ISR_RS_UPDATE   0x20000 /* interrupt ater new rx pkt status written
 182                                 * to host. */
 183#define ISR_TX_EARLY    0x40000 /* interrupt when txmac begin transmit one
 184                                 * packet */
 185
 186#define ISR_TX_EVENT (ISR_TXF_UR | ISR_TXS_OV | ISR_HOST_TXD_UR |\
 187        ISR_TS_UPDATE | ISR_TX_EARLY)
 188#define ISR_RX_EVENT (ISR_RXF_OV | ISR_RXS_OV | ISR_HOST_RXD_OV |\
 189         ISR_RS_UPDATE)
 190
 191#define IMR_NORMAL_MASK         (\
 192        /*ISR_LINK_CHG          |*/\
 193        ISR_MANUAL              |\
 194        ISR_DMAR_TO_RST         |\
 195        ISR_DMAW_TO_RST         |\
 196        ISR_PHY                 |\
 197        ISR_PHY_LINKDOWN        |\
 198        ISR_TS_UPDATE           |\
 199        ISR_RS_UPDATE)
 200
 201/* Receive MAC Statistics Registers */
 202#define REG_STS_RX_PAUSE        0x1700  /* Num pause packets received */
 203#define REG_STS_RXD_OV          0x1704  /* Num frames dropped due to RX
 204                                         * FIFO overflow */
 205#define REG_STS_RXS_OV          0x1708  /* Num frames dropped due to RX
 206                                         * Status Buffer Overflow */
 207#define REG_STS_RX_FILTER       0x170C  /* Num packets dropped due to
 208                                         * address filtering */
 209
 210/* MII definitions */
 211
 212/* PHY Common Register */
 213#define MII_SMARTSPEED  0x14
 214#define MII_DBG_ADDR    0x1D
 215#define MII_DBG_DATA    0x1E
 216
 217/* PCI Command Register Bit Definitions */
 218#define PCI_REG_COMMAND         0x04
 219#define CMD_IO_SPACE            0x0001
 220#define CMD_MEMORY_SPACE        0x0002
 221#define CMD_BUS_MASTER          0x0004
 222
 223#define MEDIA_TYPE_100M_FULL    1
 224#define MEDIA_TYPE_100M_HALF    2
 225#define MEDIA_TYPE_10M_FULL     3
 226#define MEDIA_TYPE_10M_HALF     4
 227
 228#define AUTONEG_ADVERTISE_SPEED_DEFAULT 0x000F  /* Everything */
 229
 230/* The size (in bytes) of a ethernet packet */
 231#define MAXIMUM_ETHERNET_FRAME_SIZE     1518    /* with FCS */
 232#define MINIMUM_ETHERNET_FRAME_SIZE     64      /* with FCS */
 233#define MAX_JUMBO_FRAME_SIZE            0x2000
 234
 235struct tx_pkt_header {
 236        unsigned pkt_size:11;
 237        unsigned:4;                     /* reserved */
 238        unsigned ins_vlan:1;            /* txmac should insert vlan */
 239        unsigned short vlan;            /* vlan tag */
 240};
 241/* FIXME: replace above bitfields with MASK/SHIFT defines below */
 242#define TX_PKT_HEADER_SIZE_MASK         0x7FF
 243#define TX_PKT_HEADER_SIZE_SHIFT        0
 244#define TX_PKT_HEADER_INS_VLAN_MASK     0x1
 245#define TX_PKT_HEADER_INS_VLAN_SHIFT    15
 246#define TX_PKT_HEADER_VLAN_TAG_MASK     0xFFFF
 247#define TX_PKT_HEADER_VLAN_TAG_SHIFT    16
 248
 249struct tx_pkt_status {
 250        unsigned pkt_size:11;
 251        unsigned:5;             /* reserved */
 252        unsigned ok:1;          /* current packet transmitted without error */
 253        unsigned bcast:1;       /* broadcast packet */
 254        unsigned mcast:1;       /* multicast packet */
 255        unsigned pause:1;       /* transmiited a pause frame */
 256        unsigned ctrl:1;
 257        unsigned defer:1;       /* current packet is xmitted with defer */
 258        unsigned exc_defer:1;
 259        unsigned single_col:1;
 260        unsigned multi_col:1;
 261        unsigned late_col:1;
 262        unsigned abort_col:1;
 263        unsigned underun:1;     /* current packet is aborted
 264                                 * due to txram underrun */
 265        unsigned:3;             /* reserved */
 266        unsigned update:1;      /* always 1'b1 in tx_status_buf */
 267};
 268/* FIXME: replace above bitfields with MASK/SHIFT defines below */
 269#define TX_PKT_STATUS_SIZE_MASK         0x7FF
 270#define TX_PKT_STATUS_SIZE_SHIFT        0
 271#define TX_PKT_STATUS_OK_MASK           0x1
 272#define TX_PKT_STATUS_OK_SHIFT          16
 273#define TX_PKT_STATUS_BCAST_MASK        0x1
 274#define TX_PKT_STATUS_BCAST_SHIFT       17
 275#define TX_PKT_STATUS_MCAST_MASK        0x1
 276#define TX_PKT_STATUS_MCAST_SHIFT       18
 277#define TX_PKT_STATUS_PAUSE_MASK        0x1
 278#define TX_PKT_STATUS_PAUSE_SHIFT       19
 279#define TX_PKT_STATUS_CTRL_MASK         0x1
 280#define TX_PKT_STATUS_CTRL_SHIFT        20
 281#define TX_PKT_STATUS_DEFER_MASK        0x1
 282#define TX_PKT_STATUS_DEFER_SHIFT       21
 283#define TX_PKT_STATUS_EXC_DEFER_MASK    0x1
 284#define TX_PKT_STATUS_EXC_DEFER_SHIFT   22
 285#define TX_PKT_STATUS_SINGLE_COL_MASK   0x1
 286#define TX_PKT_STATUS_SINGLE_COL_SHIFT  23
 287#define TX_PKT_STATUS_MULTI_COL_MASK    0x1
 288#define TX_PKT_STATUS_MULTI_COL_SHIFT   24
 289#define TX_PKT_STATUS_LATE_COL_MASK     0x1
 290#define TX_PKT_STATUS_LATE_COL_SHIFT    25
 291#define TX_PKT_STATUS_ABORT_COL_MASK    0x1
 292#define TX_PKT_STATUS_ABORT_COL_SHIFT   26
 293#define TX_PKT_STATUS_UNDERRUN_MASK     0x1
 294#define TX_PKT_STATUS_UNDERRUN_SHIFT    27
 295#define TX_PKT_STATUS_UPDATE_MASK       0x1
 296#define TX_PKT_STATUS_UPDATE_SHIFT      31
 297
 298struct rx_pkt_status {
 299        unsigned pkt_size:11;   /* packet size, max 2047 bytes */
 300        unsigned:5;             /* reserved */
 301        unsigned ok:1;          /* current packet received ok without error */
 302        unsigned bcast:1;       /* current packet is broadcast */
 303        unsigned mcast:1;       /* current packet is multicast */
 304        unsigned pause:1;
 305        unsigned ctrl:1;
 306        unsigned crc:1;         /* received a packet with crc error */
 307        unsigned code:1;        /* received a packet with code error */
 308        unsigned runt:1;        /* received a packet less than 64 bytes
 309                                 * with good crc */
 310        unsigned frag:1;        /* received a packet less than 64 bytes
 311                                 * with bad crc */
 312        unsigned trunc:1;       /* current frame truncated due to rxram full */
 313        unsigned align:1;       /* this packet is alignment error */
 314        unsigned vlan:1;        /* this packet has vlan */
 315        unsigned:3;             /* reserved */
 316        unsigned update:1;
 317        unsigned short vtag;    /* vlan tag */
 318        unsigned:16;
 319};
 320/* FIXME: replace above bitfields with MASK/SHIFT defines below */
 321#define RX_PKT_STATUS_SIZE_MASK         0x7FF
 322#define RX_PKT_STATUS_SIZE_SHIFT        0
 323#define RX_PKT_STATUS_OK_MASK           0x1
 324#define RX_PKT_STATUS_OK_SHIFT          16
 325#define RX_PKT_STATUS_BCAST_MASK        0x1
 326#define RX_PKT_STATUS_BCAST_SHIFT       17
 327#define RX_PKT_STATUS_MCAST_MASK        0x1
 328#define RX_PKT_STATUS_MCAST_SHIFT       18
 329#define RX_PKT_STATUS_PAUSE_MASK        0x1
 330#define RX_PKT_STATUS_PAUSE_SHIFT       19
 331#define RX_PKT_STATUS_CTRL_MASK         0x1
 332#define RX_PKT_STATUS_CTRL_SHIFT        20
 333#define RX_PKT_STATUS_CRC_MASK          0x1
 334#define RX_PKT_STATUS_CRC_SHIFT         21
 335#define RX_PKT_STATUS_CODE_MASK         0x1
 336#define RX_PKT_STATUS_CODE_SHIFT        22
 337#define RX_PKT_STATUS_RUNT_MASK         0x1
 338#define RX_PKT_STATUS_RUNT_SHIFT        23
 339#define RX_PKT_STATUS_FRAG_MASK         0x1
 340#define RX_PKT_STATUS_FRAG_SHIFT        24
 341#define RX_PKT_STATUS_TRUNK_MASK        0x1
 342#define RX_PKT_STATUS_TRUNK_SHIFT       25
 343#define RX_PKT_STATUS_ALIGN_MASK        0x1
 344#define RX_PKT_STATUS_ALIGN_SHIFT       26
 345#define RX_PKT_STATUS_VLAN_MASK         0x1
 346#define RX_PKT_STATUS_VLAN_SHIFT        27
 347#define RX_PKT_STATUS_UPDATE_MASK       0x1
 348#define RX_PKT_STATUS_UPDATE_SHIFT      31
 349#define RX_PKT_STATUS_VLAN_TAG_MASK     0xFFFF
 350#define RX_PKT_STATUS_VLAN_TAG_SHIFT    32
 351
 352struct rx_desc {
 353        struct rx_pkt_status    status;
 354        unsigned char           packet[1536-sizeof(struct rx_pkt_status)];
 355};
 356
 357enum atl2_speed_duplex {
 358        atl2_10_half = 0,
 359        atl2_10_full = 1,
 360        atl2_100_half = 2,
 361        atl2_100_full = 3
 362};
 363
 364struct atl2_spi_flash_dev {
 365        const char *manu_name;  /* manufacturer id */
 366        /* op-code */
 367        u8 cmdWRSR;
 368        u8 cmdREAD;
 369        u8 cmdPROGRAM;
 370        u8 cmdWREN;
 371        u8 cmdWRDI;
 372        u8 cmdRDSR;
 373        u8 cmdRDID;
 374        u8 cmdSECTOR_ERASE;
 375        u8 cmdCHIP_ERASE;
 376};
 377
 378/* Structure containing variables used by the shared code (atl2_hw.c) */
 379struct atl2_hw {
 380        u8 __iomem *hw_addr;
 381        void *back;
 382
 383        u8 preamble_len;
 384        u8 max_retry;          /* Retransmission maximum, afterwards the
 385                                * packet will be discarded. */
 386        u8 jam_ipg;            /* IPG to start JAM for collision based flow
 387                                * control in half-duplex mode. In unit of
 388                                * 8-bit time. */
 389        u8 ipgt;               /* Desired back to back inter-packet gap. The
 390                                * default is 96-bit time. */
 391        u8 min_ifg;            /* Minimum number of IFG to enforce in between
 392                                * RX frames. Frame gap below such IFP is
 393                                * dropped. */
 394        u8 ipgr1;              /* 64bit Carrier-Sense window */
 395        u8 ipgr2;              /* 96-bit IPG window */
 396        u8 retry_buf;          /* When half-duplex mode, should hold some
 397                                * bytes for mac retry . (8*4bytes unit) */
 398
 399        u16 fc_rxd_hi;
 400        u16 fc_rxd_lo;
 401        u16 lcol;              /* Collision Window */
 402        u16 max_frame_size;
 403
 404        u16 MediaType;
 405        u16 autoneg_advertised;
 406        u16 pci_cmd_word;
 407
 408        u16 mii_autoneg_adv_reg;
 409
 410        u32 mem_rang;
 411        u32 txcw;
 412        u32 mc_filter_type;
 413        u32 num_mc_addrs;
 414        u32 collision_delta;
 415        u32 tx_packet_delta;
 416        u16 phy_spd_default;
 417
 418        u16 device_id;
 419        u16 vendor_id;
 420        u16 subsystem_id;
 421        u16 subsystem_vendor_id;
 422        u8 revision_id;
 423
 424        /* spi flash */
 425        u8 flash_vendor;
 426
 427        u8 dma_fairness;
 428        u8 mac_addr[ETH_ALEN];
 429        u8 perm_mac_addr[ETH_ALEN];
 430
 431        /* FIXME */
 432        /* bool phy_preamble_sup; */
 433        bool phy_configured;
 434};
 435
 436#endif /* _ATL2_HW_H_ */
 437
 438struct atl2_ring_header {
 439    /* pointer to the descriptor ring memory */
 440    void *desc;
 441    /* physical address of the descriptor ring */
 442    dma_addr_t dma;
 443    /* length of descriptor ring in bytes */
 444    unsigned int size;
 445};
 446
 447/* board specific private data structure */
 448struct atl2_adapter {
 449        /* OS defined structs */
 450        struct net_device *netdev;
 451        struct pci_dev *pdev;
 452        u32 wol;
 453        u16 link_speed;
 454        u16 link_duplex;
 455
 456        spinlock_t stats_lock;
 457
 458        struct work_struct reset_task;
 459        struct work_struct link_chg_task;
 460        struct timer_list watchdog_timer;
 461        struct timer_list phy_config_timer;
 462
 463        unsigned long cfg_phy;
 464        bool mac_disabled;
 465
 466        /* All Descriptor memory */
 467        dma_addr_t      ring_dma;
 468        void            *ring_vir_addr;
 469        int             ring_size;
 470
 471        struct tx_pkt_header    *txd_ring;
 472        dma_addr_t      txd_dma;
 473
 474        struct tx_pkt_status    *txs_ring;
 475        dma_addr_t      txs_dma;
 476
 477        struct rx_desc  *rxd_ring;
 478        dma_addr_t      rxd_dma;
 479
 480        u32 txd_ring_size;         /* bytes per unit */
 481        u32 txs_ring_size;         /* dwords per unit */
 482        u32 rxd_ring_size;         /* 1536 bytes per unit */
 483
 484        /* read /write ptr: */
 485        /* host */
 486        u32 txd_write_ptr;
 487        u32 txs_next_clear;
 488        u32 rxd_read_ptr;
 489
 490        /* nic */
 491        atomic_t txd_read_ptr;
 492        atomic_t txs_write_ptr;
 493        u32 rxd_write_ptr;
 494
 495        /* Interrupt Moderator timer ( 2us resolution) */
 496        u16 imt;
 497        /* Interrupt Clear timer (2us resolution) */
 498        u16 ict;
 499
 500        unsigned long flags;
 501        /* structs defined in atl2_hw.h */
 502        u32 bd_number;     /* board number */
 503        bool pci_using_64;
 504        bool have_msi;
 505        struct atl2_hw hw;
 506
 507        u32 usr_cmd;
 508        /* FIXME */
 509        /* u32 regs_buff[ATL2_REGS_LEN]; */
 510        u32 pci_state[16];
 511
 512        u32 *config_space;
 513};
 514
 515enum atl2_state_t {
 516        __ATL2_TESTING,
 517        __ATL2_RESETTING,
 518        __ATL2_DOWN
 519};
 520
 521#endif /* _ATL2_H_ */
 522