arch/mips/include/asm/sn/ioc3.h

   1 /* SPDX-License-Identifier: GPL-2.0 */
   2 /*
   3  * Copyright (C) 1999, 2000 Ralf Baechle
   4  * Copyright (C) 1999, 2000 Silicon Graphics, Inc.
   5  */
   6 #ifndef _IOC3_H
   7 #define _IOC3_H
   8
   9 #include <linux/types.h>
  10
  11 /* SUPERIO uart register map */
  12 typedef volatile struct ioc3_uartregs {
  13         union {
  14                 volatile u8     rbr;    /* read only, DLAB == 0 */
  15                 volatile u8     thr;    /* write only, DLAB == 0 */
  16                 volatile u8     dll;    /* DLAB == 1 */
  17         } u1;
  18         union {
  19                 volatile u8     ier;    /* DLAB == 0 */
  20                 volatile u8     dlm;    /* DLAB == 1 */
  21         } u2;
  22         union {
  23                 volatile u8     iir;    /* read only */
  24                 volatile u8     fcr;    /* write only */
  25         } u3;
  26         volatile u8         iu_lcr;
  27         volatile u8         iu_mcr;
  28         volatile u8         iu_lsr;
  29         volatile u8         iu_msr;
  30         volatile u8         iu_scr;
  31 } ioc3_uregs_t;
  32
  33 #define iu_rbr u1.rbr
  34 #define iu_thr u1.thr
  35 #define iu_dll u1.dll
  36 #define iu_ier u2.ier
  37 #define iu_dlm u2.dlm
  38 #define iu_iir u3.iir
  39 #define iu_fcr u3.fcr
  40
  41 struct ioc3_sioregs {
  42         volatile u8             fill[0x141];    /* starts at 0x141 */
  43
  44         volatile u8             uartc;
  45         volatile u8             kbdcg;
  46
  47         volatile u8             fill0[0x150 - 0x142 - 1];
  48
  49         volatile u8             pp_data;
  50         volatile u8             pp_dsr;
  51         volatile u8             pp_dcr;
  52
  53         volatile u8             fill1[0x158 - 0x152 - 1];
  54
  55         volatile u8             pp_fifa;
  56         volatile u8             pp_cfgb;
  57         volatile u8             pp_ecr;
  58
  59         volatile u8             fill2[0x168 - 0x15a - 1];
  60
  61         volatile u8             rtcad;
  62         volatile u8             rtcdat;
  63
  64         volatile u8             fill3[0x170 - 0x169 - 1];
  65
  66         struct ioc3_uartregs    uartb;  /* 0x20170  */
  67         struct ioc3_uartregs    uarta;  /* 0x20178  */
  68 };
  69
  70 /* Register layout of IOC3 in configuration space.  */
  71 struct ioc3 {
  72         volatile u32    pad0[7];        /* 0x00000  */
  73         volatile u32    sio_ir;         /* 0x0001c  */
  74         volatile u32    sio_ies;        /* 0x00020  */
  75         volatile u32    sio_iec;        /* 0x00024  */
  76         volatile u32    sio_cr;         /* 0x00028  */
  77         volatile u32    int_out;        /* 0x0002c  */
  78         volatile u32    mcr;            /* 0x00030  */
  79
  80         /* General Purpose I/O registers  */
  81         volatile u32    gpcr_s;         /* 0x00034  */
  82         volatile u32    gpcr_c;         /* 0x00038  */
  83         volatile u32    gpdr;           /* 0x0003c  */
  84         volatile u32    gppr_0;         /* 0x00040  */
  85         volatile u32    gppr_1;         /* 0x00044  */
  86         volatile u32    gppr_2;         /* 0x00048  */
  87         volatile u32    gppr_3;         /* 0x0004c  */
  88         volatile u32    gppr_4;         /* 0x00050  */
  89         volatile u32    gppr_5;         /* 0x00054  */
  90         volatile u32    gppr_6;         /* 0x00058  */
  91         volatile u32    gppr_7;         /* 0x0005c  */
  92         volatile u32    gppr_8;         /* 0x00060  */
  93         volatile u32    gppr_9;         /* 0x00064  */
  94         volatile u32    gppr_10;        /* 0x00068  */
  95         volatile u32    gppr_11;        /* 0x0006c  */
  96         volatile u32    gppr_12;        /* 0x00070  */
  97         volatile u32    gppr_13;        /* 0x00074  */
  98         volatile u32    gppr_14;        /* 0x00078  */
  99         volatile u32    gppr_15;        /* 0x0007c  */
 100
 101         /* Parallel Port Registers  */
 102         volatile u32    ppbr_h_a;       /* 0x00080  */
 103         volatile u32    ppbr_l_a;       /* 0x00084  */
 104         volatile u32    ppcr_a;         /* 0x00088  */
 105         volatile u32    ppcr;           /* 0x0008c  */
 106         volatile u32    ppbr_h_b;       /* 0x00090  */
 107         volatile u32    ppbr_l_b;       /* 0x00094  */
 108         volatile u32    ppcr_b;         /* 0x00098  */
 109
 110         /* Keyboard and Mouse Registers  */
 111         volatile u32    km_csr;         /* 0x0009c  */
 112         volatile u32    k_rd;           /* 0x000a0  */
 113         volatile u32    m_rd;           /* 0x000a4  */
 114         volatile u32    k_wd;           /* 0x000a8  */
 115         volatile u32    m_wd;           /* 0x000ac  */
 116
 117         /* Serial Port Registers  */
 118         volatile u32    sbbr_h;         /* 0x000b0  */
 119         volatile u32    sbbr_l;         /* 0x000b4  */
 120         volatile u32    sscr_a;         /* 0x000b8  */
 121         volatile u32    stpir_a;        /* 0x000bc  */
 122         volatile u32    stcir_a;        /* 0x000c0  */
 123         volatile u32    srpir_a;        /* 0x000c4  */
 124         volatile u32    srcir_a;        /* 0x000c8  */
 125         volatile u32    srtr_a;         /* 0x000cc  */
 126         volatile u32    shadow_a;       /* 0x000d0  */
 127         volatile u32    sscr_b;         /* 0x000d4  */
 128         volatile u32    stpir_b;        /* 0x000d8  */
 129         volatile u32    stcir_b;        /* 0x000dc  */
 130         volatile u32    srpir_b;        /* 0x000e0  */
 131         volatile u32    srcir_b;        /* 0x000e4  */
 132         volatile u32    srtr_b;         /* 0x000e8  */
 133         volatile u32    shadow_b;       /* 0x000ec  */
 134
 135         /* Ethernet Registers  */
 136         volatile u32    emcr;           /* 0x000f0  */
 137         volatile u32    eisr;           /* 0x000f4  */
 138         volatile u32    eier;           /* 0x000f8  */
 139         volatile u32    ercsr;          /* 0x000fc  */
 140         volatile u32    erbr_h;         /* 0x00100  */
 141         volatile u32    erbr_l;         /* 0x00104  */
 142         volatile u32    erbar;          /* 0x00108  */
 143         volatile u32    ercir;          /* 0x0010c  */
 144         volatile u32    erpir;          /* 0x00110  */
 145         volatile u32    ertr;           /* 0x00114  */
 146         volatile u32    etcsr;          /* 0x00118  */
 147         volatile u32    ersr;           /* 0x0011c  */
 148         volatile u32    etcdc;          /* 0x00120  */
 149         volatile u32    ebir;           /* 0x00124  */
 150         volatile u32    etbr_h;         /* 0x00128  */
 151         volatile u32    etbr_l;         /* 0x0012c  */
 152         volatile u32    etcir;          /* 0x00130  */
 153         volatile u32    etpir;          /* 0x00134  */
 154         volatile u32    emar_h;         /* 0x00138  */
 155         volatile u32    emar_l;         /* 0x0013c  */
 156         volatile u32    ehar_h;         /* 0x00140  */
 157         volatile u32    ehar_l;         /* 0x00144  */
 158         volatile u32    micr;           /* 0x00148  */
 159         volatile u32    midr_r;         /* 0x0014c  */
 160         volatile u32    midr_w;         /* 0x00150  */
 161         volatile u32    pad1[(0x20000 - 0x00154) / 4];
 162
 163         /* SuperIO Registers  XXX */
 164         struct ioc3_sioregs     sregs;  /* 0x20000 */
 165         volatile u32    pad2[(0x40000 - 0x20180) / 4];
 166
 167         /* SSRAM Diagnostic Access */
 168         volatile u32    ssram[(0x80000 - 0x40000) / 4];
 169
 170         /* Bytebus device offsets
 171            0x80000 -   Access to the generic devices selected with   DEV0
 172            0x9FFFF     bytebus DEV_SEL_0
 173            0xA0000 -   Access to the generic devices selected with   DEV1
 174            0xBFFFF     bytebus DEV_SEL_1
 175            0xC0000 -   Access to the generic devices selected with   DEV2
 176            0xDFFFF     bytebus DEV_SEL_2
 177            0xE0000 -   Access to the generic devices selected with   DEV3
 178            0xFFFFF     bytebus DEV_SEL_3  */
 179 };
 180
 181 /*
 182  * Ethernet RX Buffer
 183  */
 184 struct ioc3_erxbuf {
 185         u32     w0;                     /* first word (valid,bcnt,cksum) */
 186         u32     err;                    /* second word various errors */
 187         /* next comes n bytes of padding */
 188         /* then the received ethernet frame itself */
 189 };
 190
 191 #define ERXBUF_IPCKSUM_MASK     0x0000ffff
 192 #define ERXBUF_BYTECNT_MASK     0x07ff0000
 193 #define ERXBUF_BYTECNT_SHIFT    16
 194 #define ERXBUF_V                0x80000000
 195
 196 #define ERXBUF_CRCERR           0x00000001      /* aka RSV15 */
 197 #define ERXBUF_FRAMERR          0x00000002      /* aka RSV14 */
 198 #define ERXBUF_CODERR           0x00000004      /* aka RSV13 */
 199 #define ERXBUF_INVPREAMB        0x00000008      /* aka RSV18 */
 200 #define ERXBUF_LOLEN            0x00007000      /* aka RSV2_0 */
 201 #define ERXBUF_HILEN            0x03ff0000      /* aka RSV12_3 */
 202 #define ERXBUF_MULTICAST        0x04000000      /* aka RSV16 */
 203 #define ERXBUF_BROADCAST        0x08000000      /* aka RSV17 */
 204 #define ERXBUF_LONGEVENT        0x10000000      /* aka RSV19 */
 205 #define ERXBUF_BADPKT           0x20000000      /* aka RSV20 */
 206 #define ERXBUF_GOODPKT          0x40000000      /* aka RSV21 */
 207 #define ERXBUF_CARRIER          0x80000000      /* aka RSV22 */
 208
 209 /*
 210  * Ethernet TX Descriptor
 211  */
 212 #define ETXD_DATALEN    104
 213 struct ioc3_etxd {
 214         u32     cmd;                            /* command field */
 215         u32     bufcnt;                         /* buffer counts field */
 216         u64     p1;                             /* buffer pointer 1 */
 217         u64     p2;                             /* buffer pointer 2 */
 218         u8      data[ETXD_DATALEN];             /* opt. tx data */
 219 };
 220
 221 #define ETXD_BYTECNT_MASK       0x000007ff      /* total byte count */
 222 #define ETXD_INTWHENDONE        0x00001000      /* intr when done */
 223 #define ETXD_D0V                0x00010000      /* data 0 valid */
 224 #define ETXD_B1V                0x00020000      /* buf 1 valid */
 225 #define ETXD_B2V                0x00040000      /* buf 2 valid */
 226 #define ETXD_DOCHECKSUM         0x00080000      /* insert ip cksum */
 227 #define ETXD_CHKOFF_MASK        0x07f00000      /* cksum byte offset */
 228 #define ETXD_CHKOFF_SHIFT       20
 229
 230 #define ETXD_D0CNT_MASK         0x0000007f
 231 #define ETXD_B1CNT_MASK         0x0007ff00
 232 #define ETXD_B1CNT_SHIFT        8
 233 #define ETXD_B2CNT_MASK         0x7ff00000
 234 #define ETXD_B2CNT_SHIFT        20
 235
 236 /*
 237  * Bytebus device space
 238  */
 239 #define IOC3_BYTEBUS_DEV0       0x80000L
 240 #define IOC3_BYTEBUS_DEV1       0xa0000L
 241 #define IOC3_BYTEBUS_DEV2       0xc0000L
 242 #define IOC3_BYTEBUS_DEV3       0xe0000L
 243
 244 /* ------------------------------------------------------------------------- */
 245
 246 /* Superio Registers (PIO Access) */
 247 #define IOC3_SIO_BASE           0x20000
 248 #define IOC3_SIO_UARTC          (IOC3_SIO_BASE+0x141)   /* UART Config */
 249 #define IOC3_SIO_KBDCG          (IOC3_SIO_BASE+0x142)   /* KBD Config */
 250 #define IOC3_SIO_PP_BASE        (IOC3_SIO_BASE+PP_BASE)         /* Parallel Port */
 251 #define IOC3_SIO_RTC_BASE       (IOC3_SIO_BASE+0x168)   /* Real Time Clock */
 252 #define IOC3_SIO_UB_BASE        (IOC3_SIO_BASE+UARTB_BASE)      /* UART B */
 253 #define IOC3_SIO_UA_BASE        (IOC3_SIO_BASE+UARTA_BASE)      /* UART A */
 254
 255 /* SSRAM Diagnostic Access */
 256 #define IOC3_SSRAM      IOC3_RAM_OFF    /* base of SSRAM diagnostic access */
 257 #define IOC3_SSRAM_LEN  0x40000 /* 256kb (address space size, may not be fully populated) */
 258 #define IOC3_SSRAM_DM   0x0000ffff      /* data mask */
 259 #define IOC3_SSRAM_PM   0x00010000      /* parity mask */
 260
 261 /* bitmasks for PCI_SCR */
 262 #define PCI_SCR_PAR_RESP_EN     0x00000040      /* enb PCI parity checking */
 263 #define PCI_SCR_SERR_EN         0x00000100      /* enable the SERR# driver */
 264 #define PCI_SCR_DROP_MODE_EN    0x00008000      /* drop pios on parity err */
 265 #define PCI_SCR_RX_SERR         (0x1 << 16)
 266 #define PCI_SCR_DROP_MODE       (0x1 << 17)
 267 #define PCI_SCR_SIG_PAR_ERR     (0x1 << 24)
 268 #define PCI_SCR_SIG_TAR_ABRT    (0x1 << 27)
 269 #define PCI_SCR_RX_TAR_ABRT     (0x1 << 28)
 270 #define PCI_SCR_SIG_MST_ABRT    (0x1 << 29)
 271 #define PCI_SCR_SIG_SERR        (0x1 << 30)
 272 #define PCI_SCR_PAR_ERR         (0x1 << 31)
 273
 274 /* bitmasks for IOC3_KM_CSR */
 275 #define KM_CSR_K_WRT_PEND 0x00000001    /* kbd port xmitting or resetting */
 276 #define KM_CSR_M_WRT_PEND 0x00000002    /* mouse port xmitting or resetting */
 277 #define KM_CSR_K_LCB      0x00000004    /* Line Cntrl Bit for last KBD write */
 278 #define KM_CSR_M_LCB      0x00000008    /* same for mouse */
 279 #define KM_CSR_K_DATA     0x00000010    /* state of kbd data line */
 280 #define KM_CSR_K_CLK      0x00000020    /* state of kbd clock line */
 281 #define KM_CSR_K_PULL_DATA 0x00000040   /* pull kbd data line low */
 282 #define KM_CSR_K_PULL_CLK 0x00000080    /* pull kbd clock line low */
 283 #define KM_CSR_M_DATA     0x00000100    /* state of ms data line */
 284 #define KM_CSR_M_CLK      0x00000200    /* state of ms clock line */
 285 #define KM_CSR_M_PULL_DATA 0x00000400   /* pull ms data line low */
 286 #define KM_CSR_M_PULL_CLK 0x00000800    /* pull ms clock line low */
 287 #define KM_CSR_EMM_MODE   0x00001000    /* emulation mode */
 288 #define KM_CSR_SIM_MODE   0x00002000    /* clock X8 */
 289 #define KM_CSR_K_SM_IDLE  0x00004000    /* Keyboard is idle */
 290 #define KM_CSR_M_SM_IDLE  0x00008000    /* Mouse is idle */
 291 #define KM_CSR_K_TO       0x00010000    /* Keyboard trying to send/receive */
 292 #define KM_CSR_M_TO       0x00020000    /* Mouse trying to send/receive */
 293 #define KM_CSR_K_TO_EN    0x00040000    /* KM_CSR_K_TO + KM_CSR_K_TO_EN = cause
 294                                            SIO_IR to assert */
 295 #define KM_CSR_M_TO_EN    0x00080000    /* KM_CSR_M_TO + KM_CSR_M_TO_EN = cause
 296                                            SIO_IR to assert */
 297 #define KM_CSR_K_CLAMP_ONE      0x00100000      /* Pull K_CLK low after rec. one char */
 298 #define KM_CSR_M_CLAMP_ONE      0x00200000      /* Pull M_CLK low after rec. one char */
 299 #define KM_CSR_K_CLAMP_THREE    0x00400000      /* Pull K_CLK low after rec. three chars */
 300 #define KM_CSR_M_CLAMP_THREE    0x00800000      /* Pull M_CLK low after rec. three char */
 301
 302 /* bitmasks for IOC3_K_RD and IOC3_M_RD */
 303 #define KM_RD_DATA_2    0x000000ff      /* 3rd char recvd since last read */
 304 #define KM_RD_DATA_2_SHIFT 0
 305 #define KM_RD_DATA_1    0x0000ff00      /* 2nd char recvd since last read */
 306 #define KM_RD_DATA_1_SHIFT 8
 307 #define KM_RD_DATA_0    0x00ff0000      /* 1st char recvd since last read */
 308 #define KM_RD_DATA_0_SHIFT 16
 309 #define KM_RD_FRAME_ERR_2 0x01000000    /*  framing or parity error in byte 2 */
 310 #define KM_RD_FRAME_ERR_1 0x02000000    /* same for byte 1 */
 311 #define KM_RD_FRAME_ERR_0 0x04000000    /* same for byte 0 */
 312
 313 #define KM_RD_KBD_MSE   0x08000000      /* 0 if from kbd, 1 if from mouse */
 314 #define KM_RD_OFLO      0x10000000      /* 4th char recvd before this read */
 315 #define KM_RD_VALID_2   0x20000000      /* DATA_2 valid */
 316 #define KM_RD_VALID_1   0x40000000      /* DATA_1 valid */
 317 #define KM_RD_VALID_0   0x80000000      /* DATA_0 valid */
 318 #define KM_RD_VALID_ALL (KM_RD_VALID_0|KM_RD_VALID_1|KM_RD_VALID_2)
 319
 320 /* bitmasks for IOC3_K_WD & IOC3_M_WD */
 321 #define KM_WD_WRT_DATA  0x000000ff      /* write to keyboard/mouse port */
 322 #define KM_WD_WRT_DATA_SHIFT 0
 323
 324 /* bitmasks for serial RX status byte */
 325 #define RXSB_OVERRUN    0x01    /* char(s) lost */
 326 #define RXSB_PAR_ERR    0x02    /* parity error */
 327 #define RXSB_FRAME_ERR  0x04    /* framing error */
 328 #define RXSB_BREAK      0x08    /* break character */
 329 #define RXSB_CTS        0x10    /* state of CTS */
 330 #define RXSB_DCD        0x20    /* state of DCD */
 331 #define RXSB_MODEM_VALID 0x40   /* DCD, CTS and OVERRUN are valid */
 332 #define RXSB_DATA_VALID 0x80    /* data byte, FRAME_ERR PAR_ERR & BREAK valid */
 333
 334 /* bitmasks for serial TX control byte */
 335 #define TXCB_INT_WHEN_DONE 0x20 /* interrupt after this byte is sent */
 336 #define TXCB_INVALID    0x00    /* byte is invalid */
 337 #define TXCB_VALID      0x40    /* byte is valid */
 338 #define TXCB_MCR        0x80    /* data<7:0> to modem control register */
 339 #define TXCB_DELAY      0xc0    /* delay data<7:0> mSec */
 340
 341 /* bitmasks for IOC3_SBBR_L */
 342 #define SBBR_L_SIZE     0x00000001      /* 0 == 1KB rings, 1 == 4KB rings */
 343 #define SBBR_L_BASE     0xfffff000      /* lower serial ring base addr */
 344
 345 /* bitmasks for IOC3_SSCR_<A:B> */
 346 #define SSCR_RX_THRESHOLD 0x000001ff    /* hiwater mark */
 347 #define SSCR_TX_TIMER_BUSY 0x00010000   /* TX timer in progress */
 348 #define SSCR_HFC_EN     0x00020000      /* hardware flow control enabled */
 349 #define SSCR_RX_RING_DCD 0x00040000     /* post RX record on delta-DCD */
 350 #define SSCR_RX_RING_CTS 0x00080000     /* post RX record on delta-CTS */
 351 #define SSCR_HIGH_SPD   0x00100000      /* 4X speed */
 352 #define SSCR_DIAG       0x00200000      /* bypass clock divider for sim */
 353 #define SSCR_RX_DRAIN   0x08000000      /* drain RX buffer to memory */
 354 #define SSCR_DMA_EN     0x10000000      /* enable ring buffer DMA */
 355 #define SSCR_DMA_PAUSE  0x20000000      /* pause DMA */
 356 #define SSCR_PAUSE_STATE 0x40000000     /* sets when PAUSE takes effect */
 357 #define SSCR_RESET      0x80000000      /* reset DMA channels */
 358
 359 /* all producer/consumer pointers are the same bitfield */
 360 #define PROD_CONS_PTR_4K 0x00000ff8     /* for 4K buffers */
 361 #define PROD_CONS_PTR_1K 0x000003f8     /* for 1K buffers */
 362 #define PROD_CONS_PTR_OFF 3
 363
 364 /* bitmasks for IOC3_SRCIR_<A:B> */
 365 #define SRCIR_ARM       0x80000000      /* arm RX timer */
 366
 367 /* bitmasks for IOC3_SRPIR_<A:B> */
 368 #define SRPIR_BYTE_CNT  0x07000000      /* bytes in packer */
 369 #define SRPIR_BYTE_CNT_SHIFT 24
 370
 371 /* bitmasks for IOC3_STCIR_<A:B> */
 372 #define STCIR_BYTE_CNT  0x0f000000      /* bytes in unpacker */
 373 #define STCIR_BYTE_CNT_SHIFT 24
 374
 375 /* bitmasks for IOC3_SHADOW_<A:B> */
 376 #define SHADOW_DR       0x00000001      /* data ready */
 377 #define SHADOW_OE       0x00000002      /* overrun error */
 378 #define SHADOW_PE       0x00000004      /* parity error */
 379 #define SHADOW_FE       0x00000008      /* framing error */
 380 #define SHADOW_BI       0x00000010      /* break interrupt */
 381 #define SHADOW_THRE     0x00000020      /* transmit holding register empty */
 382 #define SHADOW_TEMT     0x00000040      /* transmit shift register empty */
 383 #define SHADOW_RFCE     0x00000080      /* char in RX fifo has an error */
 384 #define SHADOW_DCTS     0x00010000      /* delta clear to send */
 385 #define SHADOW_DDCD     0x00080000      /* delta data carrier detect */
 386 #define SHADOW_CTS      0x00100000      /* clear to send */
 387 #define SHADOW_DCD      0x00800000      /* data carrier detect */
 388 #define SHADOW_DTR      0x01000000      /* data terminal ready */
 389 #define SHADOW_RTS      0x02000000      /* request to send */
 390 #define SHADOW_OUT1     0x04000000      /* 16550 OUT1 bit */
 391 #define SHADOW_OUT2     0x08000000      /* 16550 OUT2 bit */
 392 #define SHADOW_LOOP     0x10000000      /* loopback enabled */
 393
 394 /* bitmasks for IOC3_SRTR_<A:B> */
 395 #define SRTR_CNT        0x00000fff      /* reload value for RX timer */
 396 #define SRTR_CNT_VAL    0x0fff0000      /* current value of RX timer */
 397 #define SRTR_CNT_VAL_SHIFT 16
 398 #define SRTR_HZ         16000   /* SRTR clock frequency */
 399
 400 /* bitmasks for IOC3_SIO_IR, IOC3_SIO_IEC and IOC3_SIO_IES  */
 401 #define SIO_IR_SA_TX_MT         0x00000001      /* Serial port A TX empty */
 402 #define SIO_IR_SA_RX_FULL       0x00000002      /* port A RX buf full */
 403 #define SIO_IR_SA_RX_HIGH       0x00000004      /* port A RX hiwat */
 404 #define SIO_IR_SA_RX_TIMER      0x00000008      /* port A RX timeout */
 405 #define SIO_IR_SA_DELTA_DCD     0x00000010      /* port A delta DCD */
 406 #define SIO_IR_SA_DELTA_CTS     0x00000020      /* port A delta CTS */
 407 #define SIO_IR_SA_INT           0x00000040      /* port A pass-thru intr */
 408 #define SIO_IR_SA_TX_EXPLICIT   0x00000080      /* port A explicit TX thru */
 409 #define SIO_IR_SA_MEMERR        0x00000100      /* port A PCI error */
 410 #define SIO_IR_SB_TX_MT         0x00000200      /* */
 411 #define SIO_IR_SB_RX_FULL       0x00000400      /* */
 412 #define SIO_IR_SB_RX_HIGH       0x00000800      /* */
 413 #define SIO_IR_SB_RX_TIMER      0x00001000      /* */
 414 #define SIO_IR_SB_DELTA_DCD     0x00002000      /* */
 415 #define SIO_IR_SB_DELTA_CTS     0x00004000      /* */
 416 #define SIO_IR_SB_INT           0x00008000      /* */
 417 #define SIO_IR_SB_TX_EXPLICIT   0x00010000      /* */
 418 #define SIO_IR_SB_MEMERR        0x00020000      /* */
 419 #define SIO_IR_PP_INT           0x00040000      /* P port pass-thru intr */
 420 #define SIO_IR_PP_INTA          0x00080000      /* PP context A thru */
 421 #define SIO_IR_PP_INTB          0x00100000      /* PP context B thru */
 422 #define SIO_IR_PP_MEMERR        0x00200000      /* PP PCI error */
 423 #define SIO_IR_KBD_INT          0x00400000      /* kbd/mouse intr */
 424 #define SIO_IR_RT_INT           0x08000000      /* RT output pulse */
 425 #define SIO_IR_GEN_INT1         0x10000000      /* RT input pulse */
 426 #define SIO_IR_GEN_INT_SHIFT    28
 427
 428 /* per device interrupt masks */
 429 #define SIO_IR_SA               (SIO_IR_SA_TX_MT | SIO_IR_SA_RX_FULL | \
 430                                  SIO_IR_SA_RX_HIGH | SIO_IR_SA_RX_TIMER | \
 431                                  SIO_IR_SA_DELTA_DCD | SIO_IR_SA_DELTA_CTS | \
 432                                  SIO_IR_SA_INT | SIO_IR_SA_TX_EXPLICIT | \
 433                                  SIO_IR_SA_MEMERR)
 434 #define SIO_IR_SB               (SIO_IR_SB_TX_MT | SIO_IR_SB_RX_FULL | \
 435                                  SIO_IR_SB_RX_HIGH | SIO_IR_SB_RX_TIMER | \
 436                                  SIO_IR_SB_DELTA_DCD | SIO_IR_SB_DELTA_CTS | \
 437                                  SIO_IR_SB_INT | SIO_IR_SB_TX_EXPLICIT | \
 438                                  SIO_IR_SB_MEMERR)
 439 #define SIO_IR_PP               (SIO_IR_PP_INT | SIO_IR_PP_INTA | \
 440                                  SIO_IR_PP_INTB | SIO_IR_PP_MEMERR)
 441 #define SIO_IR_RT               (SIO_IR_RT_INT | SIO_IR_GEN_INT1)
 442
 443 /* macro to load pending interrupts */
 444 #define IOC3_PENDING_INTRS(mem) (PCI_INW(&((mem)->sio_ir)) & \
 445                                  PCI_INW(&((mem)->sio_ies_ro)))
 446
 447 /* bitmasks for SIO_CR */
 448 #define SIO_CR_SIO_RESET        0x00000001      /* reset the SIO */
 449 #define SIO_CR_SER_A_BASE       0x000000fe      /* DMA poll addr port A */
 450 #define SIO_CR_SER_A_BASE_SHIFT 1
 451 #define SIO_CR_SER_B_BASE       0x00007f00      /* DMA poll addr port B */
 452 #define SIO_CR_SER_B_BASE_SHIFT 8
 453 #define SIO_SR_CMD_PULSE        0x00078000      /* byte bus strobe length */
 454 #define SIO_CR_CMD_PULSE_SHIFT  15
 455 #define SIO_CR_ARB_DIAG         0x00380000      /* cur !enet PCI requet (ro) */
 456 #define SIO_CR_ARB_DIAG_TXA     0x00000000
 457 #define SIO_CR_ARB_DIAG_RXA     0x00080000
 458 #define SIO_CR_ARB_DIAG_TXB     0x00100000
 459 #define SIO_CR_ARB_DIAG_RXB     0x00180000
 460 #define SIO_CR_ARB_DIAG_PP      0x00200000
 461 #define SIO_CR_ARB_DIAG_IDLE    0x00400000      /* 0 -> active request (ro) */
 462
 463 /* bitmasks for INT_OUT */
 464 #define INT_OUT_COUNT   0x0000ffff      /* pulse interval timer */
 465 #define INT_OUT_MODE    0x00070000      /* mode mask */
 466 #define INT_OUT_MODE_0  0x00000000      /* set output to 0 */
 467 #define INT_OUT_MODE_1  0x00040000      /* set output to 1 */
 468 #define INT_OUT_MODE_1PULSE 0x00050000  /* send 1 pulse */
 469 #define INT_OUT_MODE_PULSES 0x00060000  /* send 1 pulse every interval */
 470 #define INT_OUT_MODE_SQW 0x00070000     /* toggle output every interval */
 471 #define INT_OUT_DIAG    0x40000000      /* diag mode */
 472 #define INT_OUT_INT_OUT 0x80000000      /* current state of INT_OUT */
 473
 474 /* time constants for INT_OUT */
 475 #define INT_OUT_NS_PER_TICK (30 * 260)  /* 30 ns PCI clock, divisor=260 */
 476 #define INT_OUT_TICKS_PER_PULSE 3       /* outgoing pulse lasts 3 ticks */
 477 #define INT_OUT_US_TO_COUNT(x)          /* convert uS to a count value */ \
 478         (((x) * 10 + INT_OUT_NS_PER_TICK / 200) *       \
 479          100 / INT_OUT_NS_PER_TICK - 1)
 480 #define INT_OUT_COUNT_TO_US(x)          /* convert count value to uS */ \
 481         (((x) + 1) * INT_OUT_NS_PER_TICK / 1000)
 482 #define INT_OUT_MIN_TICKS 3     /* min period is width of pulse in "ticks" */
 483 #define INT_OUT_MAX_TICKS INT_OUT_COUNT         /* largest possible count */
 484
 485 /* bitmasks for GPCR */
 486 #define GPCR_DIR        0x000000ff      /* tristate pin input or output */
 487 #define GPCR_DIR_PIN(x) (1<<(x))        /* access one of the DIR bits */
 488 #define GPCR_EDGE       0x000f0000      /* extint edge or level sensitive */
 489 #define GPCR_EDGE_PIN(x) (1<<((x)+15))  /* access one of the EDGE bits */
 490
 491 /* values for GPCR */
 492 #define GPCR_INT_OUT_EN 0x00100000      /* enable INT_OUT to pin 0 */
 493 #define GPCR_MLAN_EN    0x00200000      /* enable MCR to pin 8 */
 494 #define GPCR_DIR_SERA_XCVR 0x00000080   /* Port A Transceiver select enable */
 495 #define GPCR_DIR_SERB_XCVR 0x00000040   /* Port B Transceiver select enable */
 496 #define GPCR_DIR_PHY_RST   0x00000020   /* ethernet PHY reset enable */
 497
 498 /* defs for some of the generic I/O pins */
 499 #define GPCR_PHY_RESET          0x20    /* pin is output to PHY reset */
 500 #define GPCR_UARTB_MODESEL      0x40    /* pin is output to port B mode sel */
 501 #define GPCR_UARTA_MODESEL      0x80    /* pin is output to port A mode sel */
 502
 503 #define GPPR_PHY_RESET_PIN      5       /* GIO pin controlling phy reset */
 504 #define GPPR_UARTB_MODESEL_PIN  6       /* GIO pin controlling uart b mode select */
 505 #define GPPR_UARTA_MODESEL_PIN  7       /* GIO pin controlling uart a mode select */
 506
 507 #define EMCR_DUPLEX             0x00000001
 508 #define EMCR_PROMISC            0x00000002
 509 #define EMCR_PADEN              0x00000004
 510 #define EMCR_RXOFF_MASK         0x000001f8
 511 #define EMCR_RXOFF_SHIFT        3
 512 #define EMCR_RAMPAR             0x00000200
 513 #define EMCR_BADPAR             0x00000800
 514 #define EMCR_BUFSIZ             0x00001000
 515 #define EMCR_TXDMAEN            0x00002000
 516 #define EMCR_TXEN               0x00004000
 517 #define EMCR_RXDMAEN            0x00008000
 518 #define EMCR_RXEN               0x00010000
 519 #define EMCR_LOOPBACK           0x00020000
 520 #define EMCR_ARB_DIAG           0x001c0000
 521 #define EMCR_ARB_DIAG_IDLE      0x00200000
 522 #define EMCR_RST                0x80000000
 523
 524 #define EISR_RXTIMERINT         0x00000001
 525 #define EISR_RXTHRESHINT        0x00000002
 526 #define EISR_RXOFLO             0x00000004
 527 #define EISR_RXBUFOFLO          0x00000008
 528 #define EISR_RXMEMERR           0x00000010
 529 #define EISR_RXPARERR           0x00000020
 530 #define EISR_TXEMPTY            0x00010000
 531 #define EISR_TXRTRY             0x00020000
 532 #define EISR_TXEXDEF            0x00040000
 533 #define EISR_TXLCOL             0x00080000
 534 #define EISR_TXGIANT            0x00100000
 535 #define EISR_TXBUFUFLO          0x00200000
 536 #define EISR_TXEXPLICIT         0x00400000
 537 #define EISR_TXCOLLWRAP         0x00800000
 538 #define EISR_TXDEFERWRAP        0x01000000
 539 #define EISR_TXMEMERR           0x02000000
 540 #define EISR_TXPARERR           0x04000000
 541
 542 #define ERCSR_THRESH_MASK       0x000001ff      /* enet RX threshold */
 543 #define ERCSR_RX_TMR            0x40000000      /* simulation only */
 544 #define ERCSR_DIAG_OFLO         0x80000000      /* simulation only */
 545
 546 #define ERBR_ALIGNMENT          4096
 547 #define ERBR_L_RXRINGBASE_MASK  0xfffff000
 548
 549 #define ERBAR_BARRIER_BIT       0x0100
 550 #define ERBAR_RXBARR_MASK       0xffff0000
 551 #define ERBAR_RXBARR_SHIFT      16
 552
 553 #define ERCIR_RXCONSUME_MASK    0x00000fff
 554
 555 #define ERPIR_RXPRODUCE_MASK    0x00000fff
 556 #define ERPIR_ARM               0x80000000
 557
 558 #define ERTR_CNT_MASK           0x000007ff
 559
 560 #define ETCSR_IPGT_MASK         0x0000007f
 561 #define ETCSR_IPGR1_MASK        0x00007f00
 562 #define ETCSR_IPGR1_SHIFT       8
 563 #define ETCSR_IPGR2_MASK        0x007f0000
 564 #define ETCSR_IPGR2_SHIFT       16
 565 #define ETCSR_NOTXCLK           0x80000000
 566
 567 #define ETCDC_COLLCNT_MASK      0x0000ffff
 568 #define ETCDC_DEFERCNT_MASK     0xffff0000
 569 #define ETCDC_DEFERCNT_SHIFT    16
 570
 571 #define ETBR_ALIGNMENT          (64*1024)
 572 #define ETBR_L_RINGSZ_MASK      0x00000001
 573 #define ETBR_L_RINGSZ128        0
 574 #define ETBR_L_RINGSZ512        1
 575 #define ETBR_L_TXRINGBASE_MASK  0xffffc000
 576
 577 #define ETCIR_TXCONSUME_MASK    0x0000ffff
 578 #define ETCIR_IDLE              0x80000000
 579
 580 #define ETPIR_TXPRODUCE_MASK    0x0000ffff
 581
 582 #define EBIR_TXBUFPROD_MASK     0x0000001f
 583 #define EBIR_TXBUFCONS_MASK     0x00001f00
 584 #define EBIR_TXBUFCONS_SHIFT    8
 585 #define EBIR_RXBUFPROD_MASK     0x007fc000
 586 #define EBIR_RXBUFPROD_SHIFT    14
 587 #define EBIR_RXBUFCONS_MASK     0xff800000
 588 #define EBIR_RXBUFCONS_SHIFT    23
 589
 590 #define MICR_REGADDR_MASK       0x0000001f
 591 #define MICR_PHYADDR_MASK       0x000003e0
 592 #define MICR_PHYADDR_SHIFT      5
 593 #define MICR_READTRIG           0x00000400
 594 #define MICR_BUSY               0x00000800
 595
 596 #define MIDR_DATA_MASK          0x0000ffff
 597
 598 #define ERXBUF_IPCKSUM_MASK     0x0000ffff
 599 #define ERXBUF_BYTECNT_MASK     0x07ff0000
 600 #define ERXBUF_BYTECNT_SHIFT    16
 601 #define ERXBUF_V                0x80000000
 602
 603 #define ERXBUF_CRCERR           0x00000001      /* aka RSV15 */
 604 #define ERXBUF_FRAMERR          0x00000002      /* aka RSV14 */
 605 #define ERXBUF_CODERR           0x00000004      /* aka RSV13 */
 606 #define ERXBUF_INVPREAMB        0x00000008      /* aka RSV18 */
 607 #define ERXBUF_LOLEN            0x00007000      /* aka RSV2_0 */
 608 #define ERXBUF_HILEN            0x03ff0000      /* aka RSV12_3 */
 609 #define ERXBUF_MULTICAST        0x04000000      /* aka RSV16 */
 610 #define ERXBUF_BROADCAST        0x08000000      /* aka RSV17 */
 611 #define ERXBUF_LONGEVENT        0x10000000      /* aka RSV19 */
 612 #define ERXBUF_BADPKT           0x20000000      /* aka RSV20 */
 613 #define ERXBUF_GOODPKT          0x40000000      /* aka RSV21 */
 614 #define ERXBUF_CARRIER          0x80000000      /* aka RSV22 */
 615
 616 #define ETXD_BYTECNT_MASK       0x000007ff      /* total byte count */
 617 #define ETXD_INTWHENDONE        0x00001000      /* intr when done */
 618 #define ETXD_D0V                0x00010000      /* data 0 valid */
 619 #define ETXD_B1V                0x00020000      /* buf 1 valid */
 620 #define ETXD_B2V                0x00040000      /* buf 2 valid */
 621 #define ETXD_DOCHECKSUM         0x00080000      /* insert ip cksum */
 622 #define ETXD_CHKOFF_MASK        0x07f00000      /* cksum byte offset */
 623 #define ETXD_CHKOFF_SHIFT       20
 624
 625 #define ETXD_D0CNT_MASK         0x0000007f
 626 #define ETXD_B1CNT_MASK         0x0007ff00
 627 #define ETXD_B1CNT_SHIFT        8
 628 #define ETXD_B2CNT_MASK         0x7ff00000
 629 #define ETXD_B2CNT_SHIFT        20
 630
 631 typedef enum ioc3_subdevs_e {
 632     ioc3_subdev_ether,
 633     ioc3_subdev_generic,
 634     ioc3_subdev_nic,
 635     ioc3_subdev_kbms,
 636     ioc3_subdev_ttya,
 637     ioc3_subdev_ttyb,
 638     ioc3_subdev_ecpp,
 639     ioc3_subdev_rt,
 640     ioc3_nsubdevs
 641 } ioc3_subdev_t;
 642
 643 /* subdevice disable bits,
 644  * from the standard INFO_LBL_SUBDEVS
 645  */
 646 #define IOC3_SDB_ETHER          (1<<ioc3_subdev_ether)
 647 #define IOC3_SDB_GENERIC        (1<<ioc3_subdev_generic)
 648 #define IOC3_SDB_NIC            (1<<ioc3_subdev_nic)
 649 #define IOC3_SDB_KBMS           (1<<ioc3_subdev_kbms)
 650 #define IOC3_SDB_TTYA           (1<<ioc3_subdev_ttya)
 651 #define IOC3_SDB_TTYB           (1<<ioc3_subdev_ttyb)
 652 #define IOC3_SDB_ECPP           (1<<ioc3_subdev_ecpp)
 653 #define IOC3_SDB_RT             (1<<ioc3_subdev_rt)
 654
 655 #define IOC3_ALL_SUBDEVS        ((1<<ioc3_nsubdevs)-1)
 656
 657 #define IOC3_SDB_SERIAL         (IOC3_SDB_TTYA|IOC3_SDB_TTYB)
 658
 659 #define IOC3_STD_SUBDEVS        IOC3_ALL_SUBDEVS
 660
 661 #define IOC3_INTA_SUBDEVS       IOC3_SDB_ETHER
 662 #define IOC3_INTB_SUBDEVS       (IOC3_SDB_GENERIC|IOC3_SDB_KBMS|IOC3_SDB_SERIAL|IOC3_SDB_ECPP|IOC3_SDB_RT)
 663
 664 #endif /* _IOC3_H */