1/* SPDX-License-Identifier: GPL-2.0-or-later */ 2/*------------------------------------------------------------------------ 3 . smc91x.h - macros for SMSC's 91C9x/91C1xx single-chip Ethernet device. 4 . 5 . Copyright (C) 1996 by Erik Stahlman 6 . Copyright (C) 2001 Standard Microsystems Corporation 7 . Developed by Simple Network Magic Corporation 8 . Copyright (C) 2003 Monta Vista Software, Inc. 9 . Unified SMC91x driver by Nicolas Pitre 10 . 11 . 12 . Information contained in this file was obtained from the LAN91C111 13 . manual from SMC. To get a copy, if you really want one, you can find 14 . information under www.smsc.com. 15 . 16 . Authors 17 . Erik Stahlman <erik@vt.edu> 18 . Daris A Nevil <dnevil@snmc.com> 19 . Nicolas Pitre <nico@fluxnic.net> 20 . 21 ---------------------------------------------------------------------------*/ 22#ifndef _SMC91X_H_ 23#define _SMC91X_H_ 24 25#include <linux/dmaengine.h> 26#include <linux/smc91x.h> 27 28/* 29 * Any 16-bit access is performed with two 8-bit accesses if the hardware 30 * can't do it directly. Most registers are 16-bit so those are mandatory. 31 */ 32#define SMC_outw_b(x, a, r) \ 33 do { \ 34 unsigned int __val16 = (x); \ 35 unsigned int __reg = (r); \ 36 SMC_outb(__val16, a, __reg); \ 37 SMC_outb(__val16 >> 8, a, __reg + (1 << SMC_IO_SHIFT)); \ 38 } while (0) 39 40#define SMC_inw_b(a, r) \ 41 ({ \ 42 unsigned int __val16; \ 43 unsigned int __reg = r; \ 44 __val16 = SMC_inb(a, __reg); \ 45 __val16 |= SMC_inb(a, __reg + (1 << SMC_IO_SHIFT)) << 8; \ 46 __val16; \ 47 }) 48 49/* 50 * Define your architecture specific bus configuration parameters here. 51 */ 52 53#if defined(CONFIG_ARM) 54 55#include <asm/mach-types.h> 56 57/* Now the bus width is specified in the platform data 58 * pretend here to support all I/O access types 59 */ 60#define SMC_CAN_USE_8BIT 1 61#define SMC_CAN_USE_16BIT 1 62#define SMC_CAN_USE_32BIT 1 63#define SMC_NOWAIT 1 64 65#define SMC_IO_SHIFT (lp->io_shift) 66 67#define SMC_inb(a, r) readb((a) + (r)) 68#define SMC_inw(a, r) \ 69 ({ \ 70 unsigned int __smc_r = r; \ 71 SMC_16BIT(lp) ? readw((a) + __smc_r) : \ 72 SMC_8BIT(lp) ? SMC_inw_b(a, __smc_r) : \ 73 ({ BUG(); 0; }); \ 74 }) 75 76#define SMC_inl(a, r) readl((a) + (r)) 77#define SMC_outb(v, a, r) writeb(v, (a) + (r)) 78#define SMC_outw(lp, v, a, r) \ 79 do { \ 80 unsigned int __v = v, __smc_r = r; \ 81 if (SMC_16BIT(lp)) \ 82 __SMC_outw(lp, __v, a, __smc_r); \ 83 else if (SMC_8BIT(lp)) \ 84 SMC_outw_b(__v, a, __smc_r); \ 85 else \ 86 BUG(); \ 87 } while (0) 88 89#define SMC_outl(v, a, r) writel(v, (a) + (r)) 90#define SMC_insb(a, r, p, l) readsb((a) + (r), p, l) 91#define SMC_outsb(a, r, p, l) writesb((a) + (r), p, l) 92#define SMC_insw(a, r, p, l) readsw((a) + (r), p, l) 93#define SMC_outsw(a, r, p, l) writesw((a) + (r), p, l) 94#define SMC_insl(a, r, p, l) readsl((a) + (r), p, l) 95#define SMC_outsl(a, r, p, l) writesl((a) + (r), p, l) 96#define SMC_IRQ_FLAGS (-1) /* from resource */ 97 98/* We actually can't write halfwords properly if not word aligned */ 99static inline void _SMC_outw_align4(u16 val, void __iomem *ioaddr, int reg, 100 bool use_align4_workaround) 101{ 102 if (use_align4_workaround) { 103 unsigned int v = val << 16; 104 v |= readl(ioaddr + (reg & ~2)) & 0xffff; 105 writel(v, ioaddr + (reg & ~2)); 106 } else { 107 writew(val, ioaddr + reg); 108 } 109} 110 111#define __SMC_outw(lp, v, a, r) \ 112 _SMC_outw_align4((v), (a), (r), \ 113 IS_BUILTIN(CONFIG_ARCH_PXA) && ((r) & 2) && \ 114 (lp)->cfg.pxa_u16_align4) 115 116 117#elif defined(CONFIG_SH_SH4202_MICRODEV) 118 119#define SMC_CAN_USE_8BIT 0 120#define SMC_CAN_USE_16BIT 1 121#define SMC_CAN_USE_32BIT 0 122 123#define SMC_inb(a, r) inb((a) + (r) - 0xa0000000) 124#define SMC_inw(a, r) inw((a) + (r) - 0xa0000000) 125#define SMC_inl(a, r) inl((a) + (r) - 0xa0000000) 126#define SMC_outb(v, a, r) outb(v, (a) + (r) - 0xa0000000) 127#define SMC_outw(lp, v, a, r) outw(v, (a) + (r) - 0xa0000000) 128#define SMC_outl(v, a, r) outl(v, (a) + (r) - 0xa0000000) 129#define SMC_insl(a, r, p, l) insl((a) + (r) - 0xa0000000, p, l) 130#define SMC_outsl(a, r, p, l) outsl((a) + (r) - 0xa0000000, p, l) 131#define SMC_insw(a, r, p, l) insw((a) + (r) - 0xa0000000, p, l) 132#define SMC_outsw(a, r, p, l) outsw((a) + (r) - 0xa0000000, p, l) 133 134#define SMC_IRQ_FLAGS (0) 135 136#elif defined(CONFIG_ATARI) 137 138#define SMC_CAN_USE_8BIT 1 139#define SMC_CAN_USE_16BIT 1 140#define SMC_CAN_USE_32BIT 1 141#define SMC_NOWAIT 1 142 143#define SMC_inb(a, r) readb((a) + (r)) 144#define SMC_inw(a, r) readw((a) + (r)) 145#define SMC_inl(a, r) readl((a) + (r)) 146#define SMC_outb(v, a, r) writeb(v, (a) + (r)) 147#define SMC_outw(lp, v, a, r) writew(v, (a) + (r)) 148#define SMC_outl(v, a, r) writel(v, (a) + (r)) 149#define SMC_insw(a, r, p, l) readsw((a) + (r), p, l) 150#define SMC_outsw(a, r, p, l) writesw((a) + (r), p, l) 151#define SMC_insl(a, r, p, l) readsl((a) + (r), p, l) 152#define SMC_outsl(a, r, p, l) writesl((a) + (r), p, l) 153 154#define RPC_LSA_DEFAULT RPC_LED_100_10 155#define RPC_LSB_DEFAULT RPC_LED_TX_RX 156 157#elif defined(CONFIG_COLDFIRE) 158 159#define SMC_CAN_USE_8BIT 0 160#define SMC_CAN_USE_16BIT 1 161#define SMC_CAN_USE_32BIT 0 162#define SMC_NOWAIT 1 163 164static inline void mcf_insw(void *a, unsigned char *p, int l) 165{ 166 u16 *wp = (u16 *) p; 167 while (l-- > 0) 168 *wp++ = readw(a); 169} 170 171static inline void mcf_outsw(void *a, unsigned char *p, int l) 172{ 173 u16 *wp = (u16 *) p; 174 while (l-- > 0) 175 writew(*wp++, a); 176} 177 178#define SMC_inw(a, r) _swapw(readw((a) + (r))) 179#define SMC_outw(lp, v, a, r) writew(_swapw(v), (a) + (r)) 180#define SMC_insw(a, r, p, l) mcf_insw(a + r, p, l) 181#define SMC_outsw(a, r, p, l) mcf_outsw(a + r, p, l) 182 183#define SMC_IRQ_FLAGS 0 184 185#elif defined(CONFIG_H8300) 186#define SMC_CAN_USE_8BIT 1 187#define SMC_CAN_USE_16BIT 0 188#define SMC_CAN_USE_32BIT 0 189#define SMC_NOWAIT 0 190 191#define SMC_inb(a, r) ioread8((a) + (r)) 192#define SMC_outb(v, a, r) iowrite8(v, (a) + (r)) 193#define SMC_insb(a, r, p, l) ioread8_rep((a) + (r), p, l) 194#define SMC_outsb(a, r, p, l) iowrite8_rep((a) + (r), p, l) 195 196#else 197 198/* 199 * Default configuration 200 */ 201 202#define SMC_CAN_USE_8BIT 1 203#define SMC_CAN_USE_16BIT 1 204#define SMC_CAN_USE_32BIT 1 205#define SMC_NOWAIT 1 206 207#define SMC_IO_SHIFT (lp->io_shift) 208 209#define SMC_inb(a, r) ioread8((a) + (r)) 210#define SMC_inw(a, r) ioread16((a) + (r)) 211#define SMC_inl(a, r) ioread32((a) + (r)) 212#define SMC_outb(v, a, r) iowrite8(v, (a) + (r)) 213#define SMC_outw(lp, v, a, r) iowrite16(v, (a) + (r)) 214#define SMC_outl(v, a, r) iowrite32(v, (a) + (r)) 215#define SMC_insw(a, r, p, l) ioread16_rep((a) + (r), p, l) 216#define SMC_outsw(a, r, p, l) iowrite16_rep((a) + (r), p, l) 217#define SMC_insl(a, r, p, l) ioread32_rep((a) + (r), p, l) 218#define SMC_outsl(a, r, p, l) iowrite32_rep((a) + (r), p, l) 219 220#define RPC_LSA_DEFAULT RPC_LED_100_10 221#define RPC_LSB_DEFAULT RPC_LED_TX_RX 222 223#endif 224 225 226/* store this information for the driver.. */ 227struct smc_local { 228 /* 229 * If I have to wait until memory is available to send a 230 * packet, I will store the skbuff here, until I get the 231 * desired memory. Then, I'll send it out and free it. 232 */ 233 struct sk_buff *pending_tx_skb; 234 struct tasklet_struct tx_task; 235 236 struct gpio_desc *power_gpio; 237 struct gpio_desc *reset_gpio; 238 239 /* version/revision of the SMC91x chip */ 240 int version; 241 242 /* Contains the current active transmission mode */ 243 int tcr_cur_mode; 244 245 /* Contains the current active receive mode */ 246 int rcr_cur_mode; 247 248 /* Contains the current active receive/phy mode */ 249 int rpc_cur_mode; 250 int ctl_rfduplx; 251 int ctl_rspeed; 252 253 u32 msg_enable; 254 u32 phy_type; 255 struct mii_if_info mii; 256 257 /* work queue */ 258 struct work_struct phy_configure; 259 struct net_device *dev; 260 int work_pending; 261 262 spinlock_t lock; 263 264#ifdef CONFIG_ARCH_PXA 265 /* DMA needs the physical address of the chip */ 266 u_long physaddr; 267 struct device *device; 268#endif 269 struct dma_chan *dma_chan; 270 void __iomem *base; 271 void __iomem *datacs; 272 273 /* the low address lines on some platforms aren't connected... */ 274 int io_shift; 275 /* on some platforms a u16 write must be 4-bytes aligned */ 276 bool half_word_align4; 277 278 struct smc91x_platdata cfg; 279}; 280 281#define SMC_8BIT(p) ((p)->cfg.flags & SMC91X_USE_8BIT) 282#define SMC_16BIT(p) ((p)->cfg.flags & SMC91X_USE_16BIT) 283#define SMC_32BIT(p) ((p)->cfg.flags & SMC91X_USE_32BIT) 284 285#ifdef CONFIG_ARCH_PXA 286/* 287 * Let's use the DMA engine on the XScale PXA2xx for RX packets. This is 288 * always happening in irq context so no need to worry about races. TX is 289 * different and probably not worth it for that reason, and not as critical 290 * as RX which can overrun memory and lose packets. 291 */ 292#include <linux/dma-mapping.h> 293 294#ifdef SMC_insl 295#undef SMC_insl 296#define SMC_insl(a, r, p, l) \ 297 smc_pxa_dma_insl(a, lp, r, dev->dma, p, l) 298static inline void 299smc_pxa_dma_inpump(struct smc_local *lp, u_char *buf, int len) 300{ 301 dma_addr_t dmabuf; 302 struct dma_async_tx_descriptor *tx; 303 dma_cookie_t cookie; 304 enum dma_status status; 305 struct dma_tx_state state; 306 307 dmabuf = dma_map_single(lp->device, buf, len, DMA_FROM_DEVICE); 308 tx = dmaengine_prep_slave_single(lp->dma_chan, dmabuf, len, 309 DMA_DEV_TO_MEM, 0); 310 if (tx) { 311 cookie = dmaengine_submit(tx); 312 dma_async_issue_pending(lp->dma_chan); 313 do { 314 status = dmaengine_tx_status(lp->dma_chan, cookie, 315 &state); 316 cpu_relax(); 317 } while (status != DMA_COMPLETE && status != DMA_ERROR && 318 state.residue); 319 dmaengine_terminate_all(lp->dma_chan); 320 } 321 dma_unmap_single(lp->device, dmabuf, len, DMA_FROM_DEVICE); 322} 323 324static inline void 325smc_pxa_dma_insl(void __iomem *ioaddr, struct smc_local *lp, int reg, int dma, 326 u_char *buf, int len) 327{ 328 struct dma_slave_config config; 329 int ret; 330 331 /* fallback if no DMA available */ 332 if (!lp->dma_chan) { 333 readsl(ioaddr + reg, buf, len); 334 return; 335 } 336 337 /* 64 bit alignment is required for memory to memory DMA */ 338 if ((long)buf & 4) { 339 *((u32 *)buf) = SMC_inl(ioaddr, reg); 340 buf += 4; 341 len--; 342 } 343 344 memset(&config, 0, sizeof(config)); 345 config.src_addr_width = DMA_SLAVE_BUSWIDTH_4_BYTES; 346 config.dst_addr_width = DMA_SLAVE_BUSWIDTH_4_BYTES; 347 config.src_addr = lp->physaddr + reg; 348 config.dst_addr = lp->physaddr + reg; 349 config.src_maxburst = 32; 350 config.dst_maxburst = 32; 351 ret = dmaengine_slave_config(lp->dma_chan, &config); 352 if (ret) { 353 dev_err(lp->device, "dma channel configuration failed: %d\n", 354 ret); 355 return; 356 } 357 358 len *= 4; 359 smc_pxa_dma_inpump(lp, buf, len); 360} 361#endif 362 363#ifdef SMC_insw 364#undef SMC_insw 365#define SMC_insw(a, r, p, l) \ 366 smc_pxa_dma_insw(a, lp, r, dev->dma, p, l) 367static inline void 368smc_pxa_dma_insw(void __iomem *ioaddr, struct smc_local *lp, int reg, int dma, 369 u_char *buf, int len) 370{ 371 struct dma_slave_config config; 372 int ret; 373 374 /* fallback if no DMA available */ 375 if (!lp->dma_chan) { 376 readsw(ioaddr + reg, buf, len); 377 return; 378 } 379 380 /* 64 bit alignment is required for memory to memory DMA */ 381 while ((long)buf & 6) { 382 *((u16 *)buf) = SMC_inw(ioaddr, reg); 383 buf += 2; 384 len--; 385 } 386 387 memset(&config, 0, sizeof(config)); 388 config.src_addr_width = DMA_SLAVE_BUSWIDTH_2_BYTES; 389 config.dst_addr_width = DMA_SLAVE_BUSWIDTH_2_BYTES; 390 config.src_addr = lp->physaddr + reg; 391 config.dst_addr = lp->physaddr + reg; 392 config.src_maxburst = 32; 393 config.dst_maxburst = 32; 394 ret = dmaengine_slave_config(lp->dma_chan, &config); 395 if (ret) { 396 dev_err(lp->device, "dma channel configuration failed: %d\n", 397 ret); 398 return; 399 } 400 401 len *= 2; 402 smc_pxa_dma_inpump(lp, buf, len); 403} 404#endif 405 406#endif /* CONFIG_ARCH_PXA */ 407 408 409/* 410 * Everything a particular hardware setup needs should have been defined 411 * at this point. Add stubs for the undefined cases, mainly to avoid 412 * compilation warnings since they'll be optimized away, or to prevent buggy 413 * use of them. 414 */ 415 416#if ! SMC_CAN_USE_32BIT 417#define SMC_inl(ioaddr, reg) ({ BUG(); 0; }) 418#define SMC_outl(x, ioaddr, reg) BUG() 419#define SMC_insl(a, r, p, l) BUG() 420#define SMC_outsl(a, r, p, l) BUG() 421#endif 422 423#if !defined(SMC_insl) || !defined(SMC_outsl) 424#define SMC_insl(a, r, p, l) BUG() 425#define SMC_outsl(a, r, p, l) BUG() 426#endif 427 428#if ! SMC_CAN_USE_16BIT 429 430#define SMC_outw(lp, x, ioaddr, reg) SMC_outw_b(x, ioaddr, reg) 431#define SMC_inw(ioaddr, reg) SMC_inw_b(ioaddr, reg) 432#define SMC_insw(a, r, p, l) BUG() 433#define SMC_outsw(a, r, p, l) BUG() 434 435#endif 436 437#if !defined(SMC_insw) || !defined(SMC_outsw) 438#define SMC_insw(a, r, p, l) BUG() 439#define SMC_outsw(a, r, p, l) BUG() 440#endif 441 442#if ! SMC_CAN_USE_8BIT 443#undef SMC_inb 444#define SMC_inb(ioaddr, reg) ({ BUG(); 0; }) 445#undef SMC_outb 446#define SMC_outb(x, ioaddr, reg) BUG() 447#define SMC_insb(a, r, p, l) BUG() 448#define SMC_outsb(a, r, p, l) BUG() 449#endif 450 451#if !defined(SMC_insb) || !defined(SMC_outsb) 452#define SMC_insb(a, r, p, l) BUG() 453#define SMC_outsb(a, r, p, l) BUG() 454#endif 455 456#ifndef SMC_CAN_USE_DATACS 457#define SMC_CAN_USE_DATACS 0 458#endif 459 460#ifndef SMC_IO_SHIFT 461#define SMC_IO_SHIFT 0 462#endif 463 464#ifndef SMC_IRQ_FLAGS 465#define SMC_IRQ_FLAGS IRQF_TRIGGER_RISING 466#endif 467 468#ifndef SMC_INTERRUPT_PREAMBLE 469#define SMC_INTERRUPT_PREAMBLE 470#endif 471 472 473/* Because of bank switching, the LAN91x uses only 16 I/O ports */ 474#define SMC_IO_EXTENT (16 << SMC_IO_SHIFT) 475#define SMC_DATA_EXTENT (4) 476 477/* 478 . Bank Select Register: 479 . 480 . yyyy yyyy 0000 00xx 481 . xx = bank number 482 . yyyy yyyy = 0x33, for identification purposes. 483*/ 484#define BANK_SELECT (14 << SMC_IO_SHIFT) 485 486 487// Transmit Control Register 488/* BANK 0 */ 489#define TCR_REG(lp) SMC_REG(lp, 0x0000, 0) 490#define TCR_ENABLE 0x0001 // When 1 we can transmit 491#define TCR_LOOP 0x0002 // Controls output pin LBK 492#define TCR_FORCOL 0x0004 // When 1 will force a collision 493#define TCR_PAD_EN 0x0080 // When 1 will pad tx frames < 64 bytes w/0 494#define TCR_NOCRC 0x0100 // When 1 will not append CRC to tx frames 495#define TCR_MON_CSN 0x0400 // When 1 tx monitors carrier 496#define TCR_FDUPLX 0x0800 // When 1 enables full duplex operation 497#define TCR_STP_SQET 0x1000 // When 1 stops tx if Signal Quality Error 498#define TCR_EPH_LOOP 0x2000 // When 1 enables EPH block loopback 499#define TCR_SWFDUP 0x8000 // When 1 enables Switched Full Duplex mode 500 501#define TCR_CLEAR 0 /* do NOTHING */ 502/* the default settings for the TCR register : */ 503#define TCR_DEFAULT (TCR_ENABLE | TCR_PAD_EN) 504 505 506// EPH Status Register 507/* BANK 0 */ 508#define EPH_STATUS_REG(lp) SMC_REG(lp, 0x0002, 0) 509#define ES_TX_SUC 0x0001 // Last TX was successful 510#define ES_SNGL_COL 0x0002 // Single collision detected for last tx 511#define ES_MUL_COL 0x0004 // Multiple collisions detected for last tx 512#define ES_LTX_MULT 0x0008 // Last tx was a multicast 513#define ES_16COL 0x0010 // 16 Collisions Reached 514#define ES_SQET 0x0020 // Signal Quality Error Test 515#define ES_LTXBRD 0x0040 // Last tx was a broadcast 516#define ES_TXDEFR 0x0080 // Transmit Deferred 517#define ES_LATCOL 0x0200 // Late collision detected on last tx 518#define ES_LOSTCARR 0x0400 // Lost Carrier Sense 519#define ES_EXC_DEF 0x0800 // Excessive Deferral 520#define ES_CTR_ROL 0x1000 // Counter Roll Over indication 521#define ES_LINK_OK 0x4000 // Driven by inverted value of nLNK pin 522#define ES_TXUNRN 0x8000 // Tx Underrun 523 524 525// Receive Control Register 526/* BANK 0 */ 527#define RCR_REG(lp) SMC_REG(lp, 0x0004, 0) 528#define RCR_RX_ABORT 0x0001 // Set if a rx frame was aborted 529#define RCR_PRMS 0x0002 // Enable promiscuous mode 530#define RCR_ALMUL 0x0004 // When set accepts all multicast frames 531#define RCR_RXEN 0x0100 // IFF this is set, we can receive packets 532#define RCR_STRIP_CRC 0x0200 // When set strips CRC from rx packets 533#define RCR_ABORT_ENB 0x0200 // When set will abort rx on collision 534#define RCR_FILT_CAR 0x0400 // When set filters leading 12 bit s of carrier 535#define RCR_SOFTRST 0x8000 // resets the chip 536 537/* the normal settings for the RCR register : */ 538#define RCR_DEFAULT (RCR_STRIP_CRC | RCR_RXEN) 539#define RCR_CLEAR 0x0 // set it to a base state 540 541 542// Counter Register 543/* BANK 0 */ 544#define COUNTER_REG(lp) SMC_REG(lp, 0x0006, 0) 545 546 547// Memory Information Register 548/* BANK 0 */ 549#define MIR_REG(lp) SMC_REG(lp, 0x0008, 0) 550 551 552// Receive/Phy Control Register 553/* BANK 0 */ 554#define RPC_REG(lp) SMC_REG(lp, 0x000A, 0) 555#define RPC_SPEED 0x2000 // When 1 PHY is in 100Mbps mode. 556#define RPC_DPLX 0x1000 // When 1 PHY is in Full-Duplex Mode 557#define RPC_ANEG 0x0800 // When 1 PHY is in Auto-Negotiate Mode 558#define RPC_LSXA_SHFT 5 // Bits to shift LS2A,LS1A,LS0A to lsb 559#define RPC_LSXB_SHFT 2 // Bits to get LS2B,LS1B,LS0B to lsb 560 561#ifndef RPC_LSA_DEFAULT 562#define RPC_LSA_DEFAULT RPC_LED_100 563#endif 564#ifndef RPC_LSB_DEFAULT 565#define RPC_LSB_DEFAULT RPC_LED_FD 566#endif 567 568#define RPC_DEFAULT (RPC_ANEG | RPC_SPEED | RPC_DPLX) 569 570 571/* Bank 0 0x0C is reserved */ 572 573// Bank Select Register 574/* All Banks */ 575#define BSR_REG 0x000E 576 577 578// Configuration Reg 579/* BANK 1 */ 580#define CONFIG_REG(lp) SMC_REG(lp, 0x0000, 1) 581#define CONFIG_EXT_PHY 0x0200 // 1=external MII, 0=internal Phy 582#define CONFIG_GPCNTRL 0x0400 // Inverse value drives pin nCNTRL 583#define CONFIG_NO_WAIT 0x1000 // When 1 no extra wait states on ISA bus 584#define CONFIG_EPH_POWER_EN 0x8000 // When 0 EPH is placed into low power mode. 585 586// Default is powered-up, Internal Phy, Wait States, and pin nCNTRL=low 587#define CONFIG_DEFAULT (CONFIG_EPH_POWER_EN) 588 589 590// Base Address Register 591/* BANK 1 */ 592#define BASE_REG(lp) SMC_REG(lp, 0x0002, 1) 593 594 595// Individual Address Registers 596/* BANK 1 */ 597#define ADDR0_REG(lp) SMC_REG(lp, 0x0004, 1) 598#define ADDR1_REG(lp) SMC_REG(lp, 0x0006, 1) 599#define ADDR2_REG(lp) SMC_REG(lp, 0x0008, 1) 600 601 602// General Purpose Register 603/* BANK 1 */ 604#define GP_REG(lp) SMC_REG(lp, 0x000A, 1) 605 606 607// Control Register 608/* BANK 1 */ 609#define CTL_REG(lp) SMC_REG(lp, 0x000C, 1) 610#define CTL_RCV_BAD 0x4000 // When 1 bad CRC packets are received 611#define CTL_AUTO_RELEASE 0x0800 // When 1 tx pages are released automatically 612#define CTL_LE_ENABLE 0x0080 // When 1 enables Link Error interrupt 613#define CTL_CR_ENABLE 0x0040 // When 1 enables Counter Rollover interrupt 614#define CTL_TE_ENABLE 0x0020 // When 1 enables Transmit Error interrupt 615#define CTL_EEPROM_SELECT 0x0004 // Controls EEPROM reload & store 616#define CTL_RELOAD 0x0002 // When set reads EEPROM into registers 617#define CTL_STORE 0x0001 // When set stores registers into EEPROM 618 619 620// MMU Command Register 621/* BANK 2 */ 622#define MMU_CMD_REG(lp) SMC_REG(lp, 0x0000, 2) 623#define MC_BUSY 1 // When 1 the last release has not completed 624#define MC_NOP (0<<5) // No Op 625#define MC_ALLOC (1<<5) // OR with number of 256 byte packets 626#define MC_RESET (2<<5) // Reset MMU to initial state 627#define MC_REMOVE (3<<5) // Remove the current rx packet 628#define MC_RELEASE (4<<5) // Remove and release the current rx packet 629#define MC_FREEPKT (5<<5) // Release packet in PNR register 630#define MC_ENQUEUE (6<<5) // Enqueue the packet for transmit 631#define MC_RSTTXFIFO (7<<5) // Reset the TX FIFOs 632 633 634// Packet Number Register 635/* BANK 2 */ 636#define PN_REG(lp) SMC_REG(lp, 0x0002, 2) 637 638 639// Allocation Result Register 640/* BANK 2 */ 641#define AR_REG(lp) SMC_REG(lp, 0x0003, 2) 642#define AR_FAILED 0x80 // Alocation Failed 643 644 645// TX FIFO Ports Register 646/* BANK 2 */ 647#define TXFIFO_REG(lp) SMC_REG(lp, 0x0004, 2) 648#define TXFIFO_TEMPTY 0x80 // TX FIFO Empty 649 650// RX FIFO Ports Register 651/* BANK 2 */ 652#define RXFIFO_REG(lp) SMC_REG(lp, 0x0005, 2) 653#define RXFIFO_REMPTY 0x80 // RX FIFO Empty 654 655#define FIFO_REG(lp) SMC_REG(lp, 0x0004, 2) 656 657// Pointer Register 658/* BANK 2 */ 659#define PTR_REG(lp) SMC_REG(lp, 0x0006, 2) 660#define PTR_RCV 0x8000 // 1=Receive area, 0=Transmit area 661#define PTR_AUTOINC 0x4000 // Auto increment the pointer on each access 662#define PTR_READ 0x2000 // When 1 the operation is a read 663 664 665// Data Register 666/* BANK 2 */ 667#define DATA_REG(lp) SMC_REG(lp, 0x0008, 2) 668 669 670// Interrupt Status/Acknowledge Register 671/* BANK 2 */ 672#define INT_REG(lp) SMC_REG(lp, 0x000C, 2) 673 674 675// Interrupt Mask Register 676/* BANK 2 */ 677#define IM_REG(lp) SMC_REG(lp, 0x000D, 2) 678#define IM_MDINT 0x80 // PHY MI Register 18 Interrupt 679#define IM_ERCV_INT 0x40 // Early Receive Interrupt 680#define IM_EPH_INT 0x20 // Set by Ethernet Protocol Handler section 681#define IM_RX_OVRN_INT 0x10 // Set by Receiver Overruns 682#define IM_ALLOC_INT 0x08 // Set when allocation request is completed 683#define IM_TX_EMPTY_INT 0x04 // Set if the TX FIFO goes empty 684#define IM_TX_INT 0x02 // Transmit Interrupt 685#define IM_RCV_INT 0x01 // Receive Interrupt 686 687 688// Multicast Table Registers 689/* BANK 3 */ 690#define MCAST_REG1(lp) SMC_REG(lp, 0x0000, 3) 691#define MCAST_REG2(lp) SMC_REG(lp, 0x0002, 3) 692#define MCAST_REG3(lp) SMC_REG(lp, 0x0004, 3) 693#define MCAST_REG4(lp) SMC_REG(lp, 0x0006, 3) 694 695 696// Management Interface Register (MII) 697/* BANK 3 */ 698#define MII_REG(lp) SMC_REG(lp, 0x0008, 3) 699#define MII_MSK_CRS100 0x4000 // Disables CRS100 detection during tx half dup 700#define MII_MDOE 0x0008 // MII Output Enable 701#define MII_MCLK 0x0004 // MII Clock, pin MDCLK 702#define MII_MDI 0x0002 // MII Input, pin MDI 703#define MII_MDO 0x0001 // MII Output, pin MDO 704 705 706// Revision Register 707/* BANK 3 */ 708/* ( hi: chip id low: rev # ) */ 709#define REV_REG(lp) SMC_REG(lp, 0x000A, 3) 710 711 712// Early RCV Register 713/* BANK 3 */ 714/* this is NOT on SMC9192 */ 715#define ERCV_REG(lp) SMC_REG(lp, 0x000C, 3) 716#define ERCV_RCV_DISCRD 0x0080 // When 1 discards a packet being received 717#define ERCV_THRESHOLD 0x001F // ERCV Threshold Mask 718 719 720// External Register 721/* BANK 7 */ 722#define EXT_REG(lp) SMC_REG(lp, 0x0000, 7) 723 724 725#define CHIP_9192 3 726#define CHIP_9194 4 727#define CHIP_9195 5 728#define CHIP_9196 6 729#define CHIP_91100 7 730#define CHIP_91100FD 8 731#define CHIP_91111FD 9 732 733static const char * chip_ids[ 16 ] = { 734 NULL, NULL, NULL, 735 /* 3 */ "SMC91C90/91C92", 736 /* 4 */ "SMC91C94", 737 /* 5 */ "SMC91C95", 738 /* 6 */ "SMC91C96", 739 /* 7 */ "SMC91C100", 740 /* 8 */ "SMC91C100FD", 741 /* 9 */ "SMC91C11xFD", 742 NULL, NULL, NULL, 743 NULL, NULL, NULL}; 744 745 746/* 747 . Receive status bits 748*/ 749#define RS_ALGNERR 0x8000 750#define RS_BRODCAST 0x4000 751#define RS_BADCRC 0x2000 752#define RS_ODDFRAME 0x1000 753#define RS_TOOLONG 0x0800 754#define RS_TOOSHORT 0x0400 755#define RS_MULTICAST 0x0001 756#define RS_ERRORS (RS_ALGNERR | RS_BADCRC | RS_TOOLONG | RS_TOOSHORT) 757 758 759/* 760 * PHY IDs 761 * LAN83C183 == LAN91C111 Internal PHY 762 */ 763#define PHY_LAN83C183 0x0016f840 764#define PHY_LAN83C180 0x02821c50 765 766/* 767 * PHY Register Addresses (LAN91C111 Internal PHY) 768 * 769 * Generic PHY registers can be found in <linux/mii.h> 770 * 771 * These phy registers are specific to our on-board phy. 772 */ 773 774// PHY Configuration Register 1 775#define PHY_CFG1_REG 0x10 776#define PHY_CFG1_LNKDIS 0x8000 // 1=Rx Link Detect Function disabled 777#define PHY_CFG1_XMTDIS 0x4000 // 1=TP Transmitter Disabled 778#define PHY_CFG1_XMTPDN 0x2000 // 1=TP Transmitter Powered Down 779#define PHY_CFG1_BYPSCR 0x0400 // 1=Bypass scrambler/descrambler 780#define PHY_CFG1_UNSCDS 0x0200 // 1=Unscramble Idle Reception Disable 781#define PHY_CFG1_EQLZR 0x0100 // 1=Rx Equalizer Disabled 782#define PHY_CFG1_CABLE 0x0080 // 1=STP(150ohm), 0=UTP(100ohm) 783#define PHY_CFG1_RLVL0 0x0040 // 1=Rx Squelch level reduced by 4.5db 784#define PHY_CFG1_TLVL_SHIFT 2 // Transmit Output Level Adjust 785#define PHY_CFG1_TLVL_MASK 0x003C 786#define PHY_CFG1_TRF_MASK 0x0003 // Transmitter Rise/Fall time 787 788 789// PHY Configuration Register 2 790#define PHY_CFG2_REG 0x11 791#define PHY_CFG2_APOLDIS 0x0020 // 1=Auto Polarity Correction disabled 792#define PHY_CFG2_JABDIS 0x0010 // 1=Jabber disabled 793#define PHY_CFG2_MREG 0x0008 // 1=Multiple register access (MII mgt) 794#define PHY_CFG2_INTMDIO 0x0004 // 1=Interrupt signaled with MDIO pulseo 795 796// PHY Status Output (and Interrupt status) Register 797#define PHY_INT_REG 0x12 // Status Output (Interrupt Status) 798#define PHY_INT_INT 0x8000 // 1=bits have changed since last read 799#define PHY_INT_LNKFAIL 0x4000 // 1=Link Not detected 800#define PHY_INT_LOSSSYNC 0x2000 // 1=Descrambler has lost sync 801#define PHY_INT_CWRD 0x1000 // 1=Invalid 4B5B code detected on rx 802#define PHY_INT_SSD 0x0800 // 1=No Start Of Stream detected on rx 803#define PHY_INT_ESD 0x0400 // 1=No End Of Stream detected on rx 804#define PHY_INT_RPOL 0x0200 // 1=Reverse Polarity detected 805#define PHY_INT_JAB 0x0100 // 1=Jabber detected 806#define PHY_INT_SPDDET 0x0080 // 1=100Base-TX mode, 0=10Base-T mode 807#define PHY_INT_DPLXDET 0x0040 // 1=Device in Full Duplex 808 809// PHY Interrupt/Status Mask Register 810#define PHY_MASK_REG 0x13 // Interrupt Mask 811// Uses the same bit definitions as PHY_INT_REG 812 813 814/* 815 * SMC91C96 ethernet config and status registers. 816 * These are in the "attribute" space. 817 */ 818#define ECOR 0x8000 819#define ECOR_RESET 0x80 820#define ECOR_LEVEL_IRQ 0x40 821#define ECOR_WR_ATTRIB 0x04 822#define ECOR_ENABLE 0x01 823 824#define ECSR 0x8002 825#define ECSR_IOIS8 0x20 826#define ECSR_PWRDWN 0x04 827#define ECSR_INT 0x02 828 829#define ATTRIB_SIZE ((64*1024) << SMC_IO_SHIFT) 830 831 832/* 833 * Macros to abstract register access according to the data bus 834 * capabilities. Please use those and not the in/out primitives. 835 * Note: the following macros do *not* select the bank -- this must 836 * be done separately as needed in the main code. The SMC_REG() macro 837 * only uses the bank argument for debugging purposes (when enabled). 838 * 839 * Note: despite inline functions being safer, everything leading to this 840 * should preferably be macros to let BUG() display the line number in 841 * the core source code since we're interested in the top call site 842 * not in any inline function location. 843 */ 844 845#if SMC_DEBUG > 0 846#define SMC_REG(lp, reg, bank) \ 847 ({ \ 848 int __b = SMC_CURRENT_BANK(lp); \ 849 if (unlikely((__b & ~0xf0) != (0x3300 | bank))) { \ 850 pr_err("%s: bank reg screwed (0x%04x)\n", \ 851 CARDNAME, __b); \ 852 BUG(); \ 853 } \ 854 reg<<SMC_IO_SHIFT; \ 855 }) 856#else 857#define SMC_REG(lp, reg, bank) (reg<<SMC_IO_SHIFT) 858#endif 859 860/* 861 * Hack Alert: Some setups just can't write 8 or 16 bits reliably when not 862 * aligned to a 32 bit boundary. I tell you that does exist! 863 * Fortunately the affected register accesses can be easily worked around 864 * since we can write zeroes to the preceding 16 bits without adverse 865 * effects and use a 32-bit access. 866 * 867 * Enforce it on any 32-bit capable setup for now. 868 */ 869#define SMC_MUST_ALIGN_WRITE(lp) SMC_32BIT(lp) 870 871#define SMC_GET_PN(lp) \ 872 (SMC_8BIT(lp) ? (SMC_inb(ioaddr, PN_REG(lp))) \ 873 : (SMC_inw(ioaddr, PN_REG(lp)) & 0xFF)) 874 875#define SMC_SET_PN(lp, x) \ 876 do { \ 877 if (SMC_MUST_ALIGN_WRITE(lp)) \ 878 SMC_outl((x)<<16, ioaddr, SMC_REG(lp, 0, 2)); \ 879 else if (SMC_8BIT(lp)) \ 880 SMC_outb(x, ioaddr, PN_REG(lp)); \ 881 else \ 882 SMC_outw(lp, x, ioaddr, PN_REG(lp)); \ 883 } while (0) 884 885#define SMC_GET_AR(lp) \ 886 (SMC_8BIT(lp) ? (SMC_inb(ioaddr, AR_REG(lp))) \ 887 : (SMC_inw(ioaddr, PN_REG(lp)) >> 8)) 888 889#define SMC_GET_TXFIFO(lp) \ 890 (SMC_8BIT(lp) ? (SMC_inb(ioaddr, TXFIFO_REG(lp))) \ 891 : (SMC_inw(ioaddr, TXFIFO_REG(lp)) & 0xFF)) 892 893#define SMC_GET_RXFIFO(lp) \ 894 (SMC_8BIT(lp) ? (SMC_inb(ioaddr, RXFIFO_REG(lp))) \ 895 : (SMC_inw(ioaddr, TXFIFO_REG(lp)) >> 8)) 896 897#define SMC_GET_INT(lp) \ 898 (SMC_8BIT(lp) ? (SMC_inb(ioaddr, INT_REG(lp))) \ 899 : (SMC_inw(ioaddr, INT_REG(lp)) & 0xFF)) 900 901#define SMC_ACK_INT(lp, x) \ 902 do { \ 903 if (SMC_8BIT(lp)) \ 904 SMC_outb(x, ioaddr, INT_REG(lp)); \ 905 else { \ 906 unsigned long __flags; \ 907 int __mask; \ 908 local_irq_save(__flags); \ 909 __mask = SMC_inw(ioaddr, INT_REG(lp)) & ~0xff; \ 910 SMC_outw(lp, __mask | (x), ioaddr, INT_REG(lp)); \ 911 local_irq_restore(__flags); \ 912 } \ 913 } while (0) 914 915#define SMC_GET_INT_MASK(lp) \ 916 (SMC_8BIT(lp) ? (SMC_inb(ioaddr, IM_REG(lp))) \ 917 : (SMC_inw(ioaddr, INT_REG(lp)) >> 8)) 918 919#define SMC_SET_INT_MASK(lp, x) \ 920 do { \ 921 if (SMC_8BIT(lp)) \ 922 SMC_outb(x, ioaddr, IM_REG(lp)); \ 923 else \ 924 SMC_outw(lp, (x) << 8, ioaddr, INT_REG(lp)); \ 925 } while (0) 926 927#define SMC_CURRENT_BANK(lp) SMC_inw(ioaddr, BANK_SELECT) 928 929#define SMC_SELECT_BANK(lp, x) \ 930 do { \ 931 if (SMC_MUST_ALIGN_WRITE(lp)) \ 932 SMC_outl((x)<<16, ioaddr, 12<<SMC_IO_SHIFT); \ 933 else \ 934 SMC_outw(lp, x, ioaddr, BANK_SELECT); \ 935 } while (0) 936 937#define SMC_GET_BASE(lp) SMC_inw(ioaddr, BASE_REG(lp)) 938 939#define SMC_SET_BASE(lp, x) SMC_outw(lp, x, ioaddr, BASE_REG(lp)) 940 941#define SMC_GET_CONFIG(lp) SMC_inw(ioaddr, CONFIG_REG(lp)) 942 943#define SMC_SET_CONFIG(lp, x) SMC_outw(lp, x, ioaddr, CONFIG_REG(lp)) 944 945#define SMC_GET_COUNTER(lp) SMC_inw(ioaddr, COUNTER_REG(lp)) 946 947#define SMC_GET_CTL(lp) SMC_inw(ioaddr, CTL_REG(lp)) 948 949#define SMC_SET_CTL(lp, x) SMC_outw(lp, x, ioaddr, CTL_REG(lp)) 950 951#define SMC_GET_MII(lp) SMC_inw(ioaddr, MII_REG(lp)) 952 953#define SMC_GET_GP(lp) SMC_inw(ioaddr, GP_REG(lp)) 954 955#define SMC_SET_GP(lp, x) \ 956 do { \ 957 if (SMC_MUST_ALIGN_WRITE(lp)) \ 958 SMC_outl((x)<<16, ioaddr, SMC_REG(lp, 8, 1)); \ 959 else \ 960 SMC_outw(lp, x, ioaddr, GP_REG(lp)); \ 961 } while (0) 962 963#define SMC_SET_MII(lp, x) SMC_outw(lp, x, ioaddr, MII_REG(lp)) 964 965#define SMC_GET_MIR(lp) SMC_inw(ioaddr, MIR_REG(lp)) 966 967#define SMC_SET_MIR(lp, x) SMC_outw(lp, x, ioaddr, MIR_REG(lp)) 968 969#define SMC_GET_MMU_CMD(lp) SMC_inw(ioaddr, MMU_CMD_REG(lp)) 970 971#define SMC_SET_MMU_CMD(lp, x) SMC_outw(lp, x, ioaddr, MMU_CMD_REG(lp)) 972 973#define SMC_GET_FIFO(lp) SMC_inw(ioaddr, FIFO_REG(lp)) 974 975#define SMC_GET_PTR(lp) SMC_inw(ioaddr, PTR_REG(lp)) 976 977#define SMC_SET_PTR(lp, x) \ 978 do { \ 979 if (SMC_MUST_ALIGN_WRITE(lp)) \ 980 SMC_outl((x)<<16, ioaddr, SMC_REG(lp, 4, 2)); \ 981 else \ 982 SMC_outw(lp, x, ioaddr, PTR_REG(lp)); \ 983 } while (0) 984 985#define SMC_GET_EPH_STATUS(lp) SMC_inw(ioaddr, EPH_STATUS_REG(lp)) 986 987#define SMC_GET_RCR(lp) SMC_inw(ioaddr, RCR_REG(lp)) 988 989#define SMC_SET_RCR(lp, x) SMC_outw(lp, x, ioaddr, RCR_REG(lp)) 990 991#define SMC_GET_REV(lp) SMC_inw(ioaddr, REV_REG(lp)) 992 993#define SMC_GET_RPC(lp) SMC_inw(ioaddr, RPC_REG(lp)) 994 995#define SMC_SET_RPC(lp, x) \ 996 do { \ 997 if (SMC_MUST_ALIGN_WRITE(lp)) \ 998 SMC_outl((x)<<16, ioaddr, SMC_REG(lp, 8, 0)); \ 999 else \ 1000 SMC_outw(lp, x, ioaddr, RPC_REG(lp)); \ 1001 } while (0) 1002 1003#define SMC_GET_TCR(lp) SMC_inw(ioaddr, TCR_REG(lp)) 1004 1005#define SMC_SET_TCR(lp, x) SMC_outw(lp, x, ioaddr, TCR_REG(lp)) 1006 1007#ifndef SMC_GET_MAC_ADDR 1008#define SMC_GET_MAC_ADDR(lp, addr) \ 1009 do { \ 1010 unsigned int __v; \ 1011 __v = SMC_inw(ioaddr, ADDR0_REG(lp)); \ 1012 addr[0] = __v; addr[1] = __v >> 8; \ 1013 __v = SMC_inw(ioaddr, ADDR1_REG(lp)); \ 1014 addr[2] = __v; addr[3] = __v >> 8; \ 1015 __v = SMC_inw(ioaddr, ADDR2_REG(lp)); \ 1016 addr[4] = __v; addr[5] = __v >> 8; \ 1017 } while (0) 1018#endif 1019 1020#define SMC_SET_MAC_ADDR(lp, addr) \ 1021 do { \ 1022 SMC_outw(lp, addr[0] | (addr[1] << 8), ioaddr, ADDR0_REG(lp)); \ 1023 SMC_outw(lp, addr[2] | (addr[3] << 8), ioaddr, ADDR1_REG(lp)); \ 1024 SMC_outw(lp, addr[4] | (addr[5] << 8), ioaddr, ADDR2_REG(lp)); \ 1025 } while (0) 1026 1027#define SMC_SET_MCAST(lp, x) \ 1028 do { \ 1029 const unsigned char *mt = (x); \ 1030 SMC_outw(lp, mt[0] | (mt[1] << 8), ioaddr, MCAST_REG1(lp)); \ 1031 SMC_outw(lp, mt[2] | (mt[3] << 8), ioaddr, MCAST_REG2(lp)); \ 1032 SMC_outw(lp, mt[4] | (mt[5] << 8), ioaddr, MCAST_REG3(lp)); \ 1033 SMC_outw(lp, mt[6] | (mt[7] << 8), ioaddr, MCAST_REG4(lp)); \ 1034 } while (0) 1035 1036#define SMC_PUT_PKT_HDR(lp, status, length) \ 1037 do { \ 1038 if (SMC_32BIT(lp)) \ 1039 SMC_outl((status) | (length)<<16, ioaddr, \ 1040 DATA_REG(lp)); \ 1041 else { \ 1042 SMC_outw(lp, status, ioaddr, DATA_REG(lp)); \ 1043 SMC_outw(lp, length, ioaddr, DATA_REG(lp)); \ 1044 } \ 1045 } while (0) 1046 1047#define SMC_GET_PKT_HDR(lp, status, length) \ 1048 do { \ 1049 if (SMC_32BIT(lp)) { \ 1050 unsigned int __val = SMC_inl(ioaddr, DATA_REG(lp)); \ 1051 (status) = __val & 0xffff; \ 1052 (length) = __val >> 16; \ 1053 } else { \ 1054 (status) = SMC_inw(ioaddr, DATA_REG(lp)); \ 1055 (length) = SMC_inw(ioaddr, DATA_REG(lp)); \ 1056 } \ 1057 } while (0) 1058 1059#define SMC_PUSH_DATA(lp, p, l) \ 1060 do { \ 1061 if (SMC_32BIT(lp)) { \ 1062 void *__ptr = (p); \ 1063 int __len = (l); \ 1064 void __iomem *__ioaddr = ioaddr; \ 1065 if (__len >= 2 && (unsigned long)__ptr & 2) { \ 1066 __len -= 2; \ 1067 SMC_outsw(ioaddr, DATA_REG(lp), __ptr, 1); \ 1068 __ptr += 2; \ 1069 } \ 1070 if (SMC_CAN_USE_DATACS && lp->datacs) \ 1071 __ioaddr = lp->datacs; \ 1072 SMC_outsl(__ioaddr, DATA_REG(lp), __ptr, __len>>2); \ 1073 if (__len & 2) { \ 1074 __ptr += (__len & ~3); \ 1075 SMC_outsw(ioaddr, DATA_REG(lp), __ptr, 1); \ 1076 } \ 1077 } else if (SMC_16BIT(lp)) \ 1078 SMC_outsw(ioaddr, DATA_REG(lp), p, (l) >> 1); \ 1079 else if (SMC_8BIT(lp)) \ 1080 SMC_outsb(ioaddr, DATA_REG(lp), p, l); \ 1081 } while (0) 1082 1083#define SMC_PULL_DATA(lp, p, l) \ 1084 do { \ 1085 if (SMC_32BIT(lp)) { \ 1086 void *__ptr = (p); \ 1087 int __len = (l); \ 1088 void __iomem *__ioaddr = ioaddr; \ 1089 if ((unsigned long)__ptr & 2) { \ 1090 /* \ 1091 * We want 32bit alignment here. \ 1092 * Since some buses perform a full \ 1093 * 32bit fetch even for 16bit data \ 1094 * we can't use SMC_inw() here. \ 1095 * Back both source (on-chip) and \ 1096 * destination pointers of 2 bytes. \ 1097 * This is possible since the call to \ 1098 * SMC_GET_PKT_HDR() already advanced \ 1099 * the source pointer of 4 bytes, and \ 1100 * the skb_reserve(skb, 2) advanced \ 1101 * the destination pointer of 2 bytes. \ 1102 */ \ 1103 __ptr -= 2; \ 1104 __len += 2; \ 1105 SMC_SET_PTR(lp, \ 1106 2|PTR_READ|PTR_RCV|PTR_AUTOINC); \ 1107 } \ 1108 if (SMC_CAN_USE_DATACS && lp->datacs) \ 1109 __ioaddr = lp->datacs; \ 1110 __len += 2; \ 1111 SMC_insl(__ioaddr, DATA_REG(lp), __ptr, __len>>2); \ 1112 } else if (SMC_16BIT(lp)) \ 1113 SMC_insw(ioaddr, DATA_REG(lp), p, (l) >> 1); \ 1114 else if (SMC_8BIT(lp)) \ 1115 SMC_insb(ioaddr, DATA_REG(lp), p, l); \ 1116 } while (0) 1117 1118#endif /* _SMC91X_H_ */ 1119