root/drivers/net/ethernet/sis/sis900.h

INCLUDED FROM

   1 /* SPDX-License-Identifier: GPL-2.0 */
   2 /* sis900.h Definitions for SiS ethernet controllers including 7014/7016 and 900
   3  * Copyright 1999 Silicon Integrated System Corporation
   4  * References:
   5  *   SiS 7016 Fast Ethernet PCI Bus 10/100 Mbps LAN Controller with OnNow Support,
   6  *      preliminary Rev. 1.0 Jan. 14, 1998
   7  *   SiS 900 Fast Ethernet PCI Bus 10/100 Mbps LAN Single Chip with OnNow Support,
   8  *      preliminary Rev. 1.0 Nov. 10, 1998
   9  *   SiS 7014 Single Chip 100BASE-TX/10BASE-T Physical Layer Solution,
  10  *      preliminary Rev. 1.0 Jan. 18, 1998
  11  *   http://www.sis.com.tw/support/databook.htm
  12  */
  13 
  14 /*
  15  * SiS 7016 and SiS 900 ethernet controller registers
  16  */
  17 
  18 /* The I/O extent, SiS 900 needs 256 bytes of io address */
  19 #define SIS900_TOTAL_SIZE 0x100
  20 
  21 /* Symbolic offsets to registers. */
  22 enum sis900_registers {
  23         cr=0x0,                 //Command Register
  24         cfg=0x4,                //Configuration Register
  25         mear=0x8,               //EEPROM Access Register
  26         ptscr=0xc,              //PCI Test Control Register
  27         isr=0x10,               //Interrupt Status Register
  28         imr=0x14,               //Interrupt Mask Register
  29         ier=0x18,               //Interrupt Enable Register
  30         epar=0x18,              //Enhanced PHY Access Register
  31         txdp=0x20,              //Transmit Descriptor Pointer Register
  32         txcfg=0x24,             //Transmit Configuration Register
  33         rxdp=0x30,              //Receive Descriptor Pointer Register
  34         rxcfg=0x34,             //Receive Configuration Register
  35         flctrl=0x38,            //Flow Control Register
  36         rxlen=0x3c,             //Receive Packet Length Register
  37         rfcr=0x48,              //Receive Filter Control Register
  38         rfdr=0x4C,              //Receive Filter Data Register
  39         pmctrl=0xB0,            //Power Management Control Register
  40         pmer=0xB4               //Power Management Wake-up Event Register
  41 };
  42 
  43 /* Symbolic names for bits in various registers */
  44 enum sis900_command_register_bits {
  45         RELOAD  = 0x00000400, ACCESSMODE = 0x00000200,/* ET */
  46         RESET   = 0x00000100, SWI = 0x00000080, RxRESET = 0x00000020,
  47         TxRESET = 0x00000010, RxDIS = 0x00000008, RxENA = 0x00000004,
  48         TxDIS   = 0x00000002, TxENA = 0x00000001
  49 };
  50 
  51 enum sis900_configuration_register_bits {
  52         DESCRFMT = 0x00000100 /* 7016 specific */, REQALG = 0x00000080,
  53         SB    = 0x00000040, POW = 0x00000020, EXD = 0x00000010,
  54         PESEL = 0x00000008, LPM = 0x00000004, BEM = 0x00000001,
  55         /* 635 & 900B Specific */
  56         RND_CNT = 0x00000400, FAIR_BACKOFF = 0x00000200,
  57         EDB_MASTER_EN = 0x00002000
  58 };
  59 
  60 enum sis900_eeprom_access_register_bits {
  61         MDC  = 0x00000040, MDDIR = 0x00000020, MDIO = 0x00000010, /* 7016 specific */
  62         EECS = 0x00000008, EECLK = 0x00000004, EEDO = 0x00000002,
  63         EEDI = 0x00000001
  64 };
  65 
  66 enum sis900_interrupt_register_bits {
  67         WKEVT  = 0x10000000, TxPAUSEEND = 0x08000000, TxPAUSE = 0x04000000,
  68         TxRCMP = 0x02000000, RxRCMP = 0x01000000, DPERR = 0x00800000,
  69         SSERR  = 0x00400000, RMABT  = 0x00200000, RTABT = 0x00100000,
  70         RxSOVR = 0x00010000, HIBERR = 0x00008000, SWINT = 0x00001000,
  71         MIBINT = 0x00000800, TxURN  = 0x00000400, TxIDLE  = 0x00000200,
  72         TxERR  = 0x00000100, TxDESC = 0x00000080, TxOK  = 0x00000040,
  73         RxORN  = 0x00000020, RxIDLE = 0x00000010, RxEARLY = 0x00000008,
  74         RxERR  = 0x00000004, RxDESC = 0x00000002, RxOK  = 0x00000001
  75 };
  76 
  77 enum sis900_interrupt_enable_register_bits {
  78         IE = 0x00000001
  79 };
  80 
  81 /* maximum dma burst for transmission and receive */
  82 #define MAX_DMA_RANGE   7       /* actually 0 means MAXIMUM !! */
  83 #define TxMXDMA_shift           20
  84 #define RxMXDMA_shift    20
  85 
  86 enum sis900_tx_rx_dma{
  87         DMA_BURST_512 = 0,      DMA_BURST_64 = 5
  88 };
  89 
  90 /* transmit FIFO thresholds */
  91 #define TX_FILL_THRESH   16     /* 1/4 FIFO size */
  92 #define TxFILLT_shift           8
  93 #define TxDRNT_shift            0
  94 #define TxDRNT_100              48      /* 3/4 FIFO size */
  95 #define TxDRNT_10               16      /* 1/2 FIFO size */
  96 
  97 enum sis900_transmit_config_register_bits {
  98         TxCSI = 0x80000000, TxHBI = 0x40000000, TxMLB = 0x20000000,
  99         TxATP = 0x10000000, TxIFG = 0x0C000000, TxFILLT = 0x00003F00,
 100         TxDRNT = 0x0000003F
 101 };
 102 
 103 /* recevie FIFO thresholds */
 104 #define RxDRNT_shift     1
 105 #define RxDRNT_100      16      /* 1/2 FIFO size */
 106 #define RxDRNT_10               24      /* 3/4 FIFO size */
 107 
 108 enum sis900_reveive_config_register_bits {
 109         RxAEP  = 0x80000000, RxARP = 0x40000000, RxATX = 0x10000000,
 110         RxAJAB = 0x08000000, RxDRNT = 0x0000007F
 111 };
 112 
 113 #define RFAA_shift      28
 114 #define RFADDR_shift    16
 115 
 116 enum sis900_receive_filter_control_register_bits {
 117         RFEN  = 0x80000000, RFAAB = 0x40000000, RFAAM = 0x20000000,
 118         RFAAP = 0x10000000, RFPromiscuous = (RFAAB|RFAAM|RFAAP)
 119 };
 120 
 121 enum sis900_reveive_filter_data_mask {
 122         RFDAT =  0x0000FFFF
 123 };
 124 
 125 /* EEPROM Addresses */
 126 enum sis900_eeprom_address {
 127         EEPROMSignature = 0x00, EEPROMVendorID = 0x02, EEPROMDeviceID = 0x03,
 128         EEPROMMACAddr   = 0x08, EEPROMChecksum = 0x0b
 129 };
 130 
 131 /* The EEPROM commands include the alway-set leading bit. Refer to NM93Cxx datasheet */
 132 enum sis900_eeprom_command {
 133         EEread     = 0x0180, EEwrite    = 0x0140, EEerase = 0x01C0,
 134         EEwriteEnable = 0x0130, EEwriteDisable = 0x0100,
 135         EEeraseAll = 0x0120, EEwriteAll = 0x0110,
 136         EEaddrMask = 0x013F, EEcmdShift = 16
 137 };
 138 
 139 /* For SiS962 or SiS963, request the eeprom software access */
 140 enum sis96x_eeprom_command {
 141         EEREQ = 0x00000400, EEDONE = 0x00000200, EEGNT = 0x00000100
 142 };
 143 
 144 /* PCI Registers */
 145 enum sis900_pci_registers {
 146         CFGPMC   = 0x40,
 147         CFGPMCSR = 0x44
 148 };
 149 
 150 /* Power management capabilities bits */
 151 enum sis900_cfgpmc_register_bits {
 152         PMVER   = 0x00070000,
 153         DSI     = 0x00100000,
 154         PMESP   = 0xf8000000
 155 };
 156 
 157 enum sis900_pmesp_bits {
 158         PME_D0 = 0x1,
 159         PME_D1 = 0x2,
 160         PME_D2 = 0x4,
 161         PME_D3H = 0x8,
 162         PME_D3C = 0x10
 163 };
 164 
 165 /* Power management control/status bits */
 166 enum sis900_cfgpmcsr_register_bits {
 167         PMESTS = 0x00004000,
 168         PME_EN = 0x00000100, // Power management enable
 169         PWR_STA = 0x00000003 // Current power state
 170 };
 171 
 172 /* Wake-on-LAN support. */
 173 enum sis900_power_management_control_register_bits {
 174         LINKLOSS  = 0x00000001,
 175         LINKON    = 0x00000002,
 176         MAGICPKT  = 0x00000400,
 177         ALGORITHM = 0x00000800,
 178         FRM1EN    = 0x00100000,
 179         FRM2EN    = 0x00200000,
 180         FRM3EN    = 0x00400000,
 181         FRM1ACS   = 0x01000000,
 182         FRM2ACS   = 0x02000000,
 183         FRM3ACS   = 0x04000000,
 184         WAKEALL   = 0x40000000,
 185         GATECLK   = 0x80000000
 186 };
 187 
 188 /* Management Data I/O (mdio) frame */
 189 #define MIIread         0x6000
 190 #define MIIwrite        0x5002
 191 #define MIIpmdShift     7
 192 #define MIIregShift     2
 193 #define MIIcmdLen       16
 194 #define MIIcmdShift     16
 195 
 196 /* Buffer Descriptor Status*/
 197 enum sis900_buffer_status {
 198         OWN    = 0x80000000, MORE   = 0x40000000, INTR = 0x20000000,
 199         SUPCRC = 0x10000000, INCCRC = 0x10000000,
 200         OK     = 0x08000000, DSIZE  = 0x00000FFF
 201 };
 202 /* Status for TX Buffers */
 203 enum sis900_tx_buffer_status {
 204         ABORT   = 0x04000000, UNDERRUN = 0x02000000, NOCARRIER = 0x01000000,
 205         DEFERD  = 0x00800000, EXCDEFER = 0x00400000, OWCOLL    = 0x00200000,
 206         EXCCOLL = 0x00100000, COLCNT   = 0x000F0000
 207 };
 208 
 209 enum sis900_rx_buffer_status {
 210         OVERRUN = 0x02000000, DEST = 0x00800000,     BCAST = 0x01800000,
 211         MCAST   = 0x01000000, UNIMATCH = 0x00800000, TOOLONG = 0x00400000,
 212         RUNT    = 0x00200000, RXISERR  = 0x00100000, CRCERR  = 0x00080000,
 213         FAERR   = 0x00040000, LOOPBK   = 0x00020000, RXCOL   = 0x00010000
 214 };
 215 
 216 /* MII register offsets */
 217 enum mii_registers {
 218         MII_CONTROL = 0x0000, MII_STATUS = 0x0001, MII_PHY_ID0 = 0x0002,
 219         MII_PHY_ID1 = 0x0003, MII_ANADV  = 0x0004, MII_ANLPAR  = 0x0005,
 220         MII_ANEXT   = 0x0006
 221 };
 222 
 223 /* mii registers specific to SiS 900 */
 224 enum sis_mii_registers {
 225         MII_CONFIG1 = 0x0010, MII_CONFIG2 = 0x0011, MII_STSOUT = 0x0012,
 226         MII_MASK    = 0x0013, MII_RESV    = 0x0014
 227 };
 228 
 229 /* mii registers specific to ICS 1893 */
 230 enum ics_mii_registers {
 231         MII_EXTCTRL  = 0x0010, MII_QPDSTS = 0x0011, MII_10BTOP = 0x0012,
 232         MII_EXTCTRL2 = 0x0013
 233 };
 234 
 235 /* mii registers specific to AMD 79C901 */
 236 enum amd_mii_registers {
 237         MII_STATUS_SUMMARY = 0x0018
 238 };
 239 
 240 /* MII Control register bit definitions. */
 241 enum mii_control_register_bits {
 242         MII_CNTL_FDX     = 0x0100, MII_CNTL_RST_AUTO = 0x0200,
 243         MII_CNTL_ISOLATE = 0x0400, MII_CNTL_PWRDWN   = 0x0800,
 244         MII_CNTL_AUTO    = 0x1000, MII_CNTL_SPEED    = 0x2000,
 245         MII_CNTL_LPBK    = 0x4000, MII_CNTL_RESET    = 0x8000
 246 };
 247 
 248 /* MII Status register bit  */
 249 enum mii_status_register_bits {
 250         MII_STAT_EXT    = 0x0001, MII_STAT_JAB        = 0x0002,
 251         MII_STAT_LINK   = 0x0004, MII_STAT_CAN_AUTO   = 0x0008,
 252         MII_STAT_FAULT  = 0x0010, MII_STAT_AUTO_DONE  = 0x0020,
 253         MII_STAT_CAN_T  = 0x0800, MII_STAT_CAN_T_FDX  = 0x1000,
 254         MII_STAT_CAN_TX = 0x2000, MII_STAT_CAN_TX_FDX = 0x4000,
 255         MII_STAT_CAN_T4 = 0x8000
 256 };
 257 
 258 #define         MII_ID1_OUI_LO          0xFC00  /* low bits of OUI mask */
 259 #define         MII_ID1_MODEL           0x03F0  /* model number */
 260 #define         MII_ID1_REV             0x000F  /* model number */
 261 
 262 /* MII NWAY Register Bits ...
 263    valid for the ANAR (Auto-Negotiation Advertisement) and
 264    ANLPAR (Auto-Negotiation Link Partner) registers */
 265 enum mii_nway_register_bits {
 266         MII_NWAY_NODE_SEL = 0x001f, MII_NWAY_CSMA_CD = 0x0001,
 267         MII_NWAY_T        = 0x0020, MII_NWAY_T_FDX   = 0x0040,
 268         MII_NWAY_TX       = 0x0080, MII_NWAY_TX_FDX  = 0x0100,
 269         MII_NWAY_T4       = 0x0200, MII_NWAY_PAUSE   = 0x0400,
 270         MII_NWAY_RF       = 0x2000, MII_NWAY_ACK     = 0x4000,
 271         MII_NWAY_NP       = 0x8000
 272 };
 273 
 274 enum mii_stsout_register_bits {
 275         MII_STSOUT_LINK_FAIL = 0x4000,
 276         MII_STSOUT_SPD       = 0x0080, MII_STSOUT_DPLX = 0x0040
 277 };
 278 
 279 enum mii_stsics_register_bits {
 280         MII_STSICS_SPD  = 0x8000, MII_STSICS_DPLX = 0x4000,
 281         MII_STSICS_LINKSTS = 0x0001
 282 };
 283 
 284 enum mii_stssum_register_bits {
 285         MII_STSSUM_LINK = 0x0008, MII_STSSUM_DPLX = 0x0004,
 286         MII_STSSUM_AUTO = 0x0002, MII_STSSUM_SPD  = 0x0001
 287 };
 288 
 289 enum sis900_revision_id {
 290         SIS630A_900_REV = 0x80,         SIS630E_900_REV = 0x81,
 291         SIS630S_900_REV = 0x82,         SIS630EA1_900_REV = 0x83,
 292         SIS630ET_900_REV = 0x84,        SIS635A_900_REV = 0x90,
 293         SIS96x_900_REV = 0X91,          SIS900B_900_REV = 0x03
 294 };
 295 
 296 enum sis630_revision_id {
 297         SIS630A0    = 0x00, SIS630A1      = 0x01,
 298         SIS630B0    = 0x10, SIS630B1      = 0x11
 299 };
 300 
 301 #define FDX_CAPABLE_DUPLEX_UNKNOWN      0
 302 #define FDX_CAPABLE_HALF_SELECTED       1
 303 #define FDX_CAPABLE_FULL_SELECTED       2
 304 
 305 #define HW_SPEED_UNCONFIG               0
 306 #define HW_SPEED_HOME           1
 307 #define HW_SPEED_10_MBPS                10
 308 #define HW_SPEED_100_MBPS               100
 309 #define HW_SPEED_DEFAULT                (HW_SPEED_100_MBPS)
 310 
 311 #define CRC_SIZE                4
 312 #define MAC_HEADER_SIZE         14
 313 
 314 #if IS_ENABLED(CONFIG_VLAN_8021Q)
 315 #define MAX_FRAME_SIZE  (1518 + 4)
 316 #else
 317 #define MAX_FRAME_SIZE  1518
 318 #endif /* CONFIG_VLAN_802_1Q */
 319 
 320 #define TX_BUF_SIZE     (MAX_FRAME_SIZE+18)
 321 #define RX_BUF_SIZE     (MAX_FRAME_SIZE+18)
 322 
 323 #define NUM_TX_DESC     16              /* Number of Tx descriptor registers. */
 324 #define NUM_RX_DESC     16              /* Number of Rx descriptor registers. */
 325 #define TX_TOTAL_SIZE   NUM_TX_DESC*sizeof(BufferDesc)
 326 #define RX_TOTAL_SIZE   NUM_RX_DESC*sizeof(BufferDesc)
 327 
 328 /* PCI stuff, should be move to pci.h */
 329 #define SIS630_VENDOR_ID        0x1039
 330 #define SIS630_DEVICE_ID        0x0630