1 /*------------------------------------------------------------------------
2 . smc91x.h - macros for SMSC's 91C9x/91C1xx single-chip Ethernet device.
4 . Copyright (C) 1996 by Erik Stahlman
5 . Copyright (C) 2001 Standard Microsystems Corporation
6 . Developed by Simple Network Magic Corporation
7 . Copyright (C) 2003 Monta Vista Software, Inc.
8 . Unified SMC91x driver by Nicolas Pitre
10 . This program is free software; you can redistribute it and/or modify
11 . it under the terms of the GNU General Public License as published by
12 . the Free Software Foundation; either version 2 of the License, or
13 . (at your option) any later version.
15 . This program is distributed in the hope that it will be useful,
16 . but WITHOUT ANY WARRANTY; without even the implied warranty of
17 . MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
18 . GNU General Public License for more details.
20 . You should have received a copy of the GNU General Public License
21 . along with this program; if not, write to the Free Software
22 . Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
24 . Information contained in this file was obtained from the LAN91C111
25 . manual from SMC. To get a copy, if you really want one, you can find
26 . information under www.smsc.com.
29 . Erik Stahlman <erik@vt.edu>
30 . Daris A Nevil <dnevil@snmc.com>
31 . Nicolas Pitre <nico@cam.org>
33 ---------------------------------------------------------------------------*/
39 * Define your architecture specific bus configuration parameters here.
42 #if defined(CONFIG_ARCH_LUBBOCK)
44 /* We can only do 16-bit reads and writes in the static memory space. */
45 #define SMC_CAN_USE_8BIT 0
46 #define SMC_CAN_USE_16BIT 1
47 #define SMC_CAN_USE_32BIT 0
50 /* The first two address lines aren't connected... */
51 #define SMC_IO_SHIFT 2
53 #define SMC_inw(a, r) readw((a) + (r))
54 #define SMC_outw(v, a, r) writew(v, (a) + (r))
55 #define SMC_insw(a, r, p, l) readsw((a) + (r), p, l)
56 #define SMC_outsw(a, r, p, l) writesw((a) + (r), p, l)
58 #elif defined(CONFIG_REDWOOD_5) || defined(CONFIG_REDWOOD_6)
60 /* We can only do 16-bit reads and writes in the static memory space. */
61 #define SMC_CAN_USE_8BIT 0
62 #define SMC_CAN_USE_16BIT 1
63 #define SMC_CAN_USE_32BIT 0
66 #define SMC_IO_SHIFT 0
68 #define SMC_inw(a, r) in_be16((volatile u16 *)((a) + (r)))
69 #define SMC_outw(v, a, r) out_be16((volatile u16 *)((a) + (r)), v)
70 #define SMC_insw(a, r, p, l) \
72 unsigned long __port = (a) + (r); \
73 u16 *__p = (u16 *)(p); \
75 insw(__port, __p, __l); \
77 *__p = swab16(*__p); \
82 #define SMC_outsw(a, r, p, l) \
84 unsigned long __port = (a) + (r); \
85 u16 *__p = (u16 *)(p); \
88 /* Believe it or not, the swab isn't needed. */ \
89 outw( /* swab16 */ (*__p++), __port); \
93 #define SMC_IRQ_FLAGS (0)
95 #elif defined(CONFIG_SA1100_PLEB)
96 /* We can only do 16-bit reads and writes in the static memory space. */
97 #define SMC_CAN_USE_8BIT 1
98 #define SMC_CAN_USE_16BIT 1
99 #define SMC_CAN_USE_32BIT 0
100 #define SMC_IO_SHIFT 0
103 #define SMC_inb(a, r) readb((a) + (r))
104 #define SMC_insb(a, r, p, l) readsb((a) + (r), p, (l))
105 #define SMC_inw(a, r) readw((a) + (r))
106 #define SMC_insw(a, r, p, l) readsw((a) + (r), p, l)
107 #define SMC_outb(v, a, r) writeb(v, (a) + (r))
108 #define SMC_outsb(a, r, p, l) writesb((a) + (r), p, (l))
109 #define SMC_outw(v, a, r) writew(v, (a) + (r))
110 #define SMC_outsw(a, r, p, l) writesw((a) + (r), p, l)
112 #define SMC_IRQ_FLAGS (0)
114 #elif defined(CONFIG_SA1100_ASSABET)
116 #include <asm/arch/neponset.h>
118 /* We can only do 8-bit reads and writes in the static memory space. */
119 #define SMC_CAN_USE_8BIT 1
120 #define SMC_CAN_USE_16BIT 0
121 #define SMC_CAN_USE_32BIT 0
124 /* The first two address lines aren't connected... */
125 #define SMC_IO_SHIFT 2
127 #define SMC_inb(a, r) readb((a) + (r))
128 #define SMC_outb(v, a, r) writeb(v, (a) + (r))
129 #define SMC_insb(a, r, p, l) readsb((a) + (r), p, (l))
130 #define SMC_outsb(a, r, p, l) writesb((a) + (r), p, (l))
132 #elif defined(CONFIG_MACH_LOGICPD_PXA270)
134 #define SMC_CAN_USE_8BIT 0
135 #define SMC_CAN_USE_16BIT 1
136 #define SMC_CAN_USE_32BIT 0
137 #define SMC_IO_SHIFT 0
140 #define SMC_inw(a, r) readw((a) + (r))
141 #define SMC_outw(v, a, r) writew(v, (a) + (r))
142 #define SMC_insw(a, r, p, l) readsw((a) + (r), p, l)
143 #define SMC_outsw(a, r, p, l) writesw((a) + (r), p, l)
145 #elif defined(CONFIG_ARCH_INNOKOM) || \
146 defined(CONFIG_MACH_MAINSTONE) || \
147 defined(CONFIG_ARCH_PXA_IDP) || \
148 defined(CONFIG_ARCH_RAMSES)
150 #define SMC_CAN_USE_8BIT 1
151 #define SMC_CAN_USE_16BIT 1
152 #define SMC_CAN_USE_32BIT 1
153 #define SMC_IO_SHIFT 0
155 #define SMC_USE_PXA_DMA 1
157 #define SMC_inb(a, r) readb((a) + (r))
158 #define SMC_inw(a, r) readw((a) + (r))
159 #define SMC_inl(a, r) readl((a) + (r))
160 #define SMC_outb(v, a, r) writeb(v, (a) + (r))
161 #define SMC_outl(v, a, r) writel(v, (a) + (r))
162 #define SMC_insl(a, r, p, l) readsl((a) + (r), p, l)
163 #define SMC_outsl(a, r, p, l) writesl((a) + (r), p, l)
165 /* We actually can't write halfwords properly if not word aligned */
167 SMC_outw(u16 val, void __iomem *ioaddr, int reg)
170 unsigned int v = val << 16;
171 v |= readl(ioaddr + (reg & ~2)) & 0xffff;
172 writel(v, ioaddr + (reg & ~2));
174 writew(val, ioaddr + reg);
178 #elif defined(CONFIG_ARCH_OMAP)
180 /* We can only do 16-bit reads and writes in the static memory space. */
181 #define SMC_CAN_USE_8BIT 0
182 #define SMC_CAN_USE_16BIT 1
183 #define SMC_CAN_USE_32BIT 0
184 #define SMC_IO_SHIFT 0
187 #define SMC_inb(a, r) readb((a) + (r))
188 #define SMC_outb(v, a, r) writeb(v, (a) + (r))
189 #define SMC_inw(a, r) readw((a) + (r))
190 #define SMC_outw(v, a, r) writew(v, (a) + (r))
191 #define SMC_insw(a, r, p, l) readsw((a) + (r), p, l)
192 #define SMC_outsw(a, r, p, l) writesw((a) + (r), p, l)
193 #define SMC_inl(a, r) readl((a) + (r))
194 #define SMC_outl(v, a, r) writel(v, (a) + (r))
195 #define SMC_insl(a, r, p, l) readsl((a) + (r), p, l)
196 #define SMC_outsl(a, r, p, l) writesl((a) + (r), p, l)
198 #include <asm/mach-types.h>
199 #include <asm/arch/cpu.h>
201 #define SMC_IRQ_FLAGS (( \
202 machine_is_omap_h2() \
203 || machine_is_omap_h3() \
204 || (machine_is_omap_innovator() && !cpu_is_omap1510()) \
205 ) ? IRQF_TRIGGER_FALLING : IRQF_TRIGGER_RISING)
208 #elif defined(CONFIG_SH_SH4202_MICRODEV)
210 #define SMC_CAN_USE_8BIT 0
211 #define SMC_CAN_USE_16BIT 1
212 #define SMC_CAN_USE_32BIT 0
214 #define SMC_inb(a, r) inb((a) + (r) - 0xa0000000)
215 #define SMC_inw(a, r) inw((a) + (r) - 0xa0000000)
216 #define SMC_inl(a, r) inl((a) + (r) - 0xa0000000)
217 #define SMC_outb(v, a, r) outb(v, (a) + (r) - 0xa0000000)
218 #define SMC_outw(v, a, r) outw(v, (a) + (r) - 0xa0000000)
219 #define SMC_outl(v, a, r) outl(v, (a) + (r) - 0xa0000000)
220 #define SMC_insl(a, r, p, l) insl((a) + (r) - 0xa0000000, p, l)
221 #define SMC_outsl(a, r, p, l) outsl((a) + (r) - 0xa0000000, p, l)
222 #define SMC_insw(a, r, p, l) insw((a) + (r) - 0xa0000000, p, l)
223 #define SMC_outsw(a, r, p, l) outsw((a) + (r) - 0xa0000000, p, l)
225 #define SMC_IRQ_FLAGS (0)
227 #elif defined(CONFIG_ISA)
229 #define SMC_CAN_USE_8BIT 1
230 #define SMC_CAN_USE_16BIT 1
231 #define SMC_CAN_USE_32BIT 0
233 #define SMC_inb(a, r) inb((a) + (r))
234 #define SMC_inw(a, r) inw((a) + (r))
235 #define SMC_outb(v, a, r) outb(v, (a) + (r))
236 #define SMC_outw(v, a, r) outw(v, (a) + (r))
237 #define SMC_insw(a, r, p, l) insw((a) + (r), p, l)
238 #define SMC_outsw(a, r, p, l) outsw((a) + (r), p, l)
240 #elif defined(CONFIG_M32R)
242 #define SMC_CAN_USE_8BIT 0
243 #define SMC_CAN_USE_16BIT 1
244 #define SMC_CAN_USE_32BIT 0
246 #define SMC_inb(a, r) inb((u32)a) + (r))
247 #define SMC_inw(a, r) inw(((u32)a) + (r))
248 #define SMC_outb(v, a, r) outb(v, ((u32)a) + (r))
249 #define SMC_outw(v, a, r) outw(v, ((u32)a) + (r))
250 #define SMC_insw(a, r, p, l) insw(((u32)a) + (r), p, l)
251 #define SMC_outsw(a, r, p, l) outsw(((u32)a) + (r), p, l)
253 #define SMC_IRQ_FLAGS (0)
255 #define RPC_LSA_DEFAULT RPC_LED_TX_RX
256 #define RPC_LSB_DEFAULT RPC_LED_100_10
258 #elif defined(CONFIG_MACH_LPD79520) \
259 || defined(CONFIG_MACH_LPD7A400) \
260 || defined(CONFIG_MACH_LPD7A404)
262 /* The LPD7X_IOBARRIER is necessary to overcome a mismatch between the
263 * way that the CPU handles chip selects and the way that the SMC chip
264 * expects the chip select to operate. Refer to
265 * Documentation/arm/Sharp-LH/IOBarrier for details. The read from
266 * IOBARRIER is a byte, in order that we read the least-common
267 * denominator. It would be wasteful to read 32 bits from an 8-bit
270 * There is no explicit protection against interrupts intervening
271 * between the writew and the IOBARRIER. In SMC ISR there is a
272 * preamble that performs an IOBARRIER in the extremely unlikely event
273 * that the driver interrupts itself between a writew to the chip an
274 * the IOBARRIER that follows *and* the cache is large enough that the
275 * first off-chip access while handing the interrupt is to the SMC
276 * chip. Other devices in the same address space as the SMC chip must
277 * be aware of the potential for trouble and perform a similar
278 * IOBARRIER on entry to their ISR.
281 #include <asm/arch/constants.h> /* IOBARRIER_VIRT */
283 #define SMC_CAN_USE_8BIT 0
284 #define SMC_CAN_USE_16BIT 1
285 #define SMC_CAN_USE_32BIT 0
287 #define LPD7X_IOBARRIER readb (IOBARRIER_VIRT)
289 #define SMC_inw(a,r)\
290 ({ unsigned short v = readw ((void*) ((a) + (r))); LPD7X_IOBARRIER; v; })
291 #define SMC_outw(v,a,r) ({ writew ((v), (a) + (r)); LPD7X_IOBARRIER; })
293 #define SMC_insw LPD7_SMC_insw
294 static inline void LPD7_SMC_insw (unsigned char* a, int r,
295 unsigned char* p, int l)
297 unsigned short* ps = (unsigned short*) p;
299 *ps++ = readw (a + r);
304 #define SMC_outsw LPD7_SMC_outsw
305 static inline void LPD7_SMC_outsw (unsigned char* a, int r,
306 unsigned char* p, int l)
308 unsigned short* ps = (unsigned short*) p;
310 writew (*ps++, a + r);
315 #define SMC_INTERRUPT_PREAMBLE LPD7X_IOBARRIER
317 #define RPC_LSA_DEFAULT RPC_LED_TX_RX
318 #define RPC_LSB_DEFAULT RPC_LED_100_10
320 #elif defined(CONFIG_SOC_AU1X00)
324 /* We can only do 16-bit reads and writes in the static memory space. */
325 #define SMC_CAN_USE_8BIT 0
326 #define SMC_CAN_USE_16BIT 1
327 #define SMC_CAN_USE_32BIT 0
328 #define SMC_IO_SHIFT 0
331 #define SMC_inw(a, r) au_readw((unsigned long)((a) + (r)))
332 #define SMC_insw(a, r, p, l) \
334 unsigned long _a = (unsigned long)((a) + (r)); \
336 u16 *_p = (u16 *)(p); \
338 *_p++ = au_readw(_a); \
340 #define SMC_outw(v, a, r) au_writew(v, (unsigned long)((a) + (r)))
341 #define SMC_outsw(a, r, p, l) \
343 unsigned long _a = (unsigned long)((a) + (r)); \
345 const u16 *_p = (const u16 *)(p); \
347 au_writew(*_p++ , _a); \
350 #define SMC_IRQ_FLAGS (0)
352 #elif defined(CONFIG_ARCH_VERSATILE)
354 #define SMC_CAN_USE_8BIT 1
355 #define SMC_CAN_USE_16BIT 1
356 #define SMC_CAN_USE_32BIT 1
359 #define SMC_inb(a, r) readb((a) + (r))
360 #define SMC_inw(a, r) readw((a) + (r))
361 #define SMC_inl(a, r) readl((a) + (r))
362 #define SMC_outb(v, a, r) writeb(v, (a) + (r))
363 #define SMC_outw(v, a, r) writew(v, (a) + (r))
364 #define SMC_outl(v, a, r) writel(v, (a) + (r))
365 #define SMC_insl(a, r, p, l) readsl((a) + (r), p, l)
366 #define SMC_outsl(a, r, p, l) writesl((a) + (r), p, l)
368 #define SMC_IRQ_FLAGS (0)
372 #define SMC_CAN_USE_8BIT 1
373 #define SMC_CAN_USE_16BIT 1
374 #define SMC_CAN_USE_32BIT 1
377 #define SMC_inb(a, r) readb((a) + (r))
378 #define SMC_inw(a, r) readw((a) + (r))
379 #define SMC_inl(a, r) readl((a) + (r))
380 #define SMC_outb(v, a, r) writeb(v, (a) + (r))
381 #define SMC_outw(v, a, r) writew(v, (a) + (r))
382 #define SMC_outl(v, a, r) writel(v, (a) + (r))
383 #define SMC_insl(a, r, p, l) readsl((a) + (r), p, l)
384 #define SMC_outsl(a, r, p, l) writesl((a) + (r), p, l)
386 #define RPC_LSA_DEFAULT RPC_LED_100_10
387 #define RPC_LSB_DEFAULT RPC_LED_TX_RX
391 #ifdef SMC_USE_PXA_DMA
393 * Let's use the DMA engine on the XScale PXA2xx for RX packets. This is
394 * always happening in irq context so no need to worry about races. TX is
395 * different and probably not worth it for that reason, and not as critical
396 * as RX which can overrun memory and lose packets.
398 #include <linux/dma-mapping.h>
400 #include <asm/arch/pxa-regs.h>
404 #define SMC_insl(a, r, p, l) \
405 smc_pxa_dma_insl(a, lp->physaddr, r, dev->dma, p, l)
407 smc_pxa_dma_insl(void __iomem *ioaddr, u_long physaddr, int reg, int dma,
408 u_char *buf, int len)
412 /* fallback if no DMA available */
413 if (dma == (unsigned char)-1) {
414 readsl(ioaddr + reg, buf, len);
418 /* 64 bit alignment is required for memory to memory DMA */
420 *((u32 *)buf) = SMC_inl(ioaddr, reg);
426 dmabuf = dma_map_single(NULL, buf, len, DMA_FROM_DEVICE);
427 DCSR(dma) = DCSR_NODESC;
429 DSADR(dma) = physaddr + reg;
430 DCMD(dma) = (DCMD_INCTRGADDR | DCMD_BURST32 |
431 DCMD_WIDTH4 | (DCMD_LENGTH & len));
432 DCSR(dma) = DCSR_NODESC | DCSR_RUN;
433 while (!(DCSR(dma) & DCSR_STOPSTATE))
436 dma_unmap_single(NULL, dmabuf, len, DMA_FROM_DEVICE);
442 #define SMC_insw(a, r, p, l) \
443 smc_pxa_dma_insw(a, lp->physaddr, r, dev->dma, p, l)
445 smc_pxa_dma_insw(void __iomem *ioaddr, u_long physaddr, int reg, int dma,
446 u_char *buf, int len)
450 /* fallback if no DMA available */
451 if (dma == (unsigned char)-1) {
452 readsw(ioaddr + reg, buf, len);
456 /* 64 bit alignment is required for memory to memory DMA */
457 while ((long)buf & 6) {
458 *((u16 *)buf) = SMC_inw(ioaddr, reg);
464 dmabuf = dma_map_single(NULL, buf, len, DMA_FROM_DEVICE);
465 DCSR(dma) = DCSR_NODESC;
467 DSADR(dma) = physaddr + reg;
468 DCMD(dma) = (DCMD_INCTRGADDR | DCMD_BURST32 |
469 DCMD_WIDTH2 | (DCMD_LENGTH & len));
470 DCSR(dma) = DCSR_NODESC | DCSR_RUN;
471 while (!(DCSR(dma) & DCSR_STOPSTATE))
474 dma_unmap_single(NULL, dmabuf, len, DMA_FROM_DEVICE);
479 smc_pxa_dma_irq(int dma, void *dummy, struct pt_regs *regs)
483 #endif /* SMC_USE_PXA_DMA */
487 * Everything a particular hardware setup needs should have been defined
488 * at this point. Add stubs for the undefined cases, mainly to avoid
489 * compilation warnings since they'll be optimized away, or to prevent buggy
493 #if ! SMC_CAN_USE_32BIT
494 #define SMC_inl(ioaddr, reg) ({ BUG(); 0; })
495 #define SMC_outl(x, ioaddr, reg) BUG()
496 #define SMC_insl(a, r, p, l) BUG()
497 #define SMC_outsl(a, r, p, l) BUG()
500 #if !defined(SMC_insl) || !defined(SMC_outsl)
501 #define SMC_insl(a, r, p, l) BUG()
502 #define SMC_outsl(a, r, p, l) BUG()
505 #if ! SMC_CAN_USE_16BIT
508 * Any 16-bit access is performed with two 8-bit accesses if the hardware
509 * can't do it directly. Most registers are 16-bit so those are mandatory.
511 #define SMC_outw(x, ioaddr, reg) \
513 unsigned int __val16 = (x); \
514 SMC_outb( __val16, ioaddr, reg ); \
515 SMC_outb( __val16 >> 8, ioaddr, reg + (1 << SMC_IO_SHIFT));\
517 #define SMC_inw(ioaddr, reg) \
519 unsigned int __val16; \
520 __val16 = SMC_inb( ioaddr, reg ); \
521 __val16 |= SMC_inb( ioaddr, reg + (1 << SMC_IO_SHIFT)) << 8; \
525 #define SMC_insw(a, r, p, l) BUG()
526 #define SMC_outsw(a, r, p, l) BUG()
530 #if !defined(SMC_insw) || !defined(SMC_outsw)
531 #define SMC_insw(a, r, p, l) BUG()
532 #define SMC_outsw(a, r, p, l) BUG()
535 #if ! SMC_CAN_USE_8BIT
536 #define SMC_inb(ioaddr, reg) ({ BUG(); 0; })
537 #define SMC_outb(x, ioaddr, reg) BUG()
538 #define SMC_insb(a, r, p, l) BUG()
539 #define SMC_outsb(a, r, p, l) BUG()
542 #if !defined(SMC_insb) || !defined(SMC_outsb)
543 #define SMC_insb(a, r, p, l) BUG()
544 #define SMC_outsb(a, r, p, l) BUG()
547 #ifndef SMC_CAN_USE_DATACS
548 #define SMC_CAN_USE_DATACS 0
552 #define SMC_IO_SHIFT 0
555 #ifndef SMC_IRQ_FLAGS
556 #define SMC_IRQ_FLAGS IRQF_TRIGGER_RISING
559 #ifndef SMC_INTERRUPT_PREAMBLE
560 #define SMC_INTERRUPT_PREAMBLE
564 /* Because of bank switching, the LAN91x uses only 16 I/O ports */
565 #define SMC_IO_EXTENT (16 << SMC_IO_SHIFT)
566 #define SMC_DATA_EXTENT (4)
569 . Bank Select Register:
571 . yyyy yyyy 0000 00xx
573 . yyyy yyyy = 0x33, for identification purposes.
575 #define BANK_SELECT (14 << SMC_IO_SHIFT)
578 // Transmit Control Register
580 #define TCR_REG SMC_REG(0x0000, 0)
581 #define TCR_ENABLE 0x0001 // When 1 we can transmit
582 #define TCR_LOOP 0x0002 // Controls output pin LBK
583 #define TCR_FORCOL 0x0004 // When 1 will force a collision
584 #define TCR_PAD_EN 0x0080 // When 1 will pad tx frames < 64 bytes w/0
585 #define TCR_NOCRC 0x0100 // When 1 will not append CRC to tx frames
586 #define TCR_MON_CSN 0x0400 // When 1 tx monitors carrier
587 #define TCR_FDUPLX 0x0800 // When 1 enables full duplex operation
588 #define TCR_STP_SQET 0x1000 // When 1 stops tx if Signal Quality Error
589 #define TCR_EPH_LOOP 0x2000 // When 1 enables EPH block loopback
590 #define TCR_SWFDUP 0x8000 // When 1 enables Switched Full Duplex mode
592 #define TCR_CLEAR 0 /* do NOTHING */
593 /* the default settings for the TCR register : */
594 #define TCR_DEFAULT (TCR_ENABLE | TCR_PAD_EN)
597 // EPH Status Register
599 #define EPH_STATUS_REG SMC_REG(0x0002, 0)
600 #define ES_TX_SUC 0x0001 // Last TX was successful
601 #define ES_SNGL_COL 0x0002 // Single collision detected for last tx
602 #define ES_MUL_COL 0x0004 // Multiple collisions detected for last tx
603 #define ES_LTX_MULT 0x0008 // Last tx was a multicast
604 #define ES_16COL 0x0010 // 16 Collisions Reached
605 #define ES_SQET 0x0020 // Signal Quality Error Test
606 #define ES_LTXBRD 0x0040 // Last tx was a broadcast
607 #define ES_TXDEFR 0x0080 // Transmit Deferred
608 #define ES_LATCOL 0x0200 // Late collision detected on last tx
609 #define ES_LOSTCARR 0x0400 // Lost Carrier Sense
610 #define ES_EXC_DEF 0x0800 // Excessive Deferral
611 #define ES_CTR_ROL 0x1000 // Counter Roll Over indication
612 #define ES_LINK_OK 0x4000 // Driven by inverted value of nLNK pin
613 #define ES_TXUNRN 0x8000 // Tx Underrun
616 // Receive Control Register
618 #define RCR_REG SMC_REG(0x0004, 0)
619 #define RCR_RX_ABORT 0x0001 // Set if a rx frame was aborted
620 #define RCR_PRMS 0x0002 // Enable promiscuous mode
621 #define RCR_ALMUL 0x0004 // When set accepts all multicast frames
622 #define RCR_RXEN 0x0100 // IFF this is set, we can receive packets
623 #define RCR_STRIP_CRC 0x0200 // When set strips CRC from rx packets
624 #define RCR_ABORT_ENB 0x0200 // When set will abort rx on collision
625 #define RCR_FILT_CAR 0x0400 // When set filters leading 12 bit s of carrier
626 #define RCR_SOFTRST 0x8000 // resets the chip
628 /* the normal settings for the RCR register : */
629 #define RCR_DEFAULT (RCR_STRIP_CRC | RCR_RXEN)
630 #define RCR_CLEAR 0x0 // set it to a base state
635 #define COUNTER_REG SMC_REG(0x0006, 0)
638 // Memory Information Register
640 #define MIR_REG SMC_REG(0x0008, 0)
643 // Receive/Phy Control Register
645 #define RPC_REG SMC_REG(0x000A, 0)
646 #define RPC_SPEED 0x2000 // When 1 PHY is in 100Mbps mode.
647 #define RPC_DPLX 0x1000 // When 1 PHY is in Full-Duplex Mode
648 #define RPC_ANEG 0x0800 // When 1 PHY is in Auto-Negotiate Mode
649 #define RPC_LSXA_SHFT 5 // Bits to shift LS2A,LS1A,LS0A to lsb
650 #define RPC_LSXB_SHFT 2 // Bits to get LS2B,LS1B,LS0B to lsb
651 #define RPC_LED_100_10 (0x00) // LED = 100Mbps OR's with 10Mbps link detect
652 #define RPC_LED_RES (0x01) // LED = Reserved
653 #define RPC_LED_10 (0x02) // LED = 10Mbps link detect
654 #define RPC_LED_FD (0x03) // LED = Full Duplex Mode
655 #define RPC_LED_TX_RX (0x04) // LED = TX or RX packet occurred
656 #define RPC_LED_100 (0x05) // LED = 100Mbps link dectect
657 #define RPC_LED_TX (0x06) // LED = TX packet occurred
658 #define RPC_LED_RX (0x07) // LED = RX packet occurred
660 #ifndef RPC_LSA_DEFAULT
661 #define RPC_LSA_DEFAULT RPC_LED_100
663 #ifndef RPC_LSB_DEFAULT
664 #define RPC_LSB_DEFAULT RPC_LED_FD
667 #define RPC_DEFAULT (RPC_ANEG | (RPC_LSA_DEFAULT << RPC_LSXA_SHFT) | (RPC_LSB_DEFAULT << RPC_LSXB_SHFT) | RPC_SPEED | RPC_DPLX)
670 /* Bank 0 0x0C is reserved */
672 // Bank Select Register
674 #define BSR_REG 0x000E
679 #define CONFIG_REG SMC_REG(0x0000, 1)
680 #define CONFIG_EXT_PHY 0x0200 // 1=external MII, 0=internal Phy
681 #define CONFIG_GPCNTRL 0x0400 // Inverse value drives pin nCNTRL
682 #define CONFIG_NO_WAIT 0x1000 // When 1 no extra wait states on ISA bus
683 #define CONFIG_EPH_POWER_EN 0x8000 // When 0 EPH is placed into low power mode.
685 // Default is powered-up, Internal Phy, Wait States, and pin nCNTRL=low
686 #define CONFIG_DEFAULT (CONFIG_EPH_POWER_EN)
689 // Base Address Register
691 #define BASE_REG SMC_REG(0x0002, 1)
694 // Individual Address Registers
696 #define ADDR0_REG SMC_REG(0x0004, 1)
697 #define ADDR1_REG SMC_REG(0x0006, 1)
698 #define ADDR2_REG SMC_REG(0x0008, 1)
701 // General Purpose Register
703 #define GP_REG SMC_REG(0x000A, 1)
708 #define CTL_REG SMC_REG(0x000C, 1)
709 #define CTL_RCV_BAD 0x4000 // When 1 bad CRC packets are received
710 #define CTL_AUTO_RELEASE 0x0800 // When 1 tx pages are released automatically
711 #define CTL_LE_ENABLE 0x0080 // When 1 enables Link Error interrupt
712 #define CTL_CR_ENABLE 0x0040 // When 1 enables Counter Rollover interrupt
713 #define CTL_TE_ENABLE 0x0020 // When 1 enables Transmit Error interrupt
714 #define CTL_EEPROM_SELECT 0x0004 // Controls EEPROM reload & store
715 #define CTL_RELOAD 0x0002 // When set reads EEPROM into registers
716 #define CTL_STORE 0x0001 // When set stores registers into EEPROM
719 // MMU Command Register
721 #define MMU_CMD_REG SMC_REG(0x0000, 2)
722 #define MC_BUSY 1 // When 1 the last release has not completed
723 #define MC_NOP (0<<5) // No Op
724 #define MC_ALLOC (1<<5) // OR with number of 256 byte packets
725 #define MC_RESET (2<<5) // Reset MMU to initial state
726 #define MC_REMOVE (3<<5) // Remove the current rx packet
727 #define MC_RELEASE (4<<5) // Remove and release the current rx packet
728 #define MC_FREEPKT (5<<5) // Release packet in PNR register
729 #define MC_ENQUEUE (6<<5) // Enqueue the packet for transmit
730 #define MC_RSTTXFIFO (7<<5) // Reset the TX FIFOs
733 // Packet Number Register
735 #define PN_REG SMC_REG(0x0002, 2)
738 // Allocation Result Register
740 #define AR_REG SMC_REG(0x0003, 2)
741 #define AR_FAILED 0x80 // Alocation Failed
744 // TX FIFO Ports Register
746 #define TXFIFO_REG SMC_REG(0x0004, 2)
747 #define TXFIFO_TEMPTY 0x80 // TX FIFO Empty
749 // RX FIFO Ports Register
751 #define RXFIFO_REG SMC_REG(0x0005, 2)
752 #define RXFIFO_REMPTY 0x80 // RX FIFO Empty
754 #define FIFO_REG SMC_REG(0x0004, 2)
758 #define PTR_REG SMC_REG(0x0006, 2)
759 #define PTR_RCV 0x8000 // 1=Receive area, 0=Transmit area
760 #define PTR_AUTOINC 0x4000 // Auto increment the pointer on each access
761 #define PTR_READ 0x2000 // When 1 the operation is a read
766 #define DATA_REG SMC_REG(0x0008, 2)
769 // Interrupt Status/Acknowledge Register
771 #define INT_REG SMC_REG(0x000C, 2)
774 // Interrupt Mask Register
776 #define IM_REG SMC_REG(0x000D, 2)
777 #define IM_MDINT 0x80 // PHY MI Register 18 Interrupt
778 #define IM_ERCV_INT 0x40 // Early Receive Interrupt
779 #define IM_EPH_INT 0x20 // Set by Ethernet Protocol Handler section
780 #define IM_RX_OVRN_INT 0x10 // Set by Receiver Overruns
781 #define IM_ALLOC_INT 0x08 // Set when allocation request is completed
782 #define IM_TX_EMPTY_INT 0x04 // Set if the TX FIFO goes empty
783 #define IM_TX_INT 0x02 // Transmit Interrupt
784 #define IM_RCV_INT 0x01 // Receive Interrupt
787 // Multicast Table Registers
789 #define MCAST_REG1 SMC_REG(0x0000, 3)
790 #define MCAST_REG2 SMC_REG(0x0002, 3)
791 #define MCAST_REG3 SMC_REG(0x0004, 3)
792 #define MCAST_REG4 SMC_REG(0x0006, 3)
795 // Management Interface Register (MII)
797 #define MII_REG SMC_REG(0x0008, 3)
798 #define MII_MSK_CRS100 0x4000 // Disables CRS100 detection during tx half dup
799 #define MII_MDOE 0x0008 // MII Output Enable
800 #define MII_MCLK 0x0004 // MII Clock, pin MDCLK
801 #define MII_MDI 0x0002 // MII Input, pin MDI
802 #define MII_MDO 0x0001 // MII Output, pin MDO
807 /* ( hi: chip id low: rev # ) */
808 #define REV_REG SMC_REG(0x000A, 3)
811 // Early RCV Register
813 /* this is NOT on SMC9192 */
814 #define ERCV_REG SMC_REG(0x000C, 3)
815 #define ERCV_RCV_DISCRD 0x0080 // When 1 discards a packet being received
816 #define ERCV_THRESHOLD 0x001F // ERCV Threshold Mask
821 #define EXT_REG SMC_REG(0x0000, 7)
829 #define CHIP_91100FD 8
830 #define CHIP_91111FD 9
832 static const char * chip_ids[ 16 ] = {
834 /* 3 */ "SMC91C90/91C92",
839 /* 8 */ "SMC91C100FD",
840 /* 9 */ "SMC91C11xFD",
846 . Receive status bits
848 #define RS_ALGNERR 0x8000
849 #define RS_BRODCAST 0x4000
850 #define RS_BADCRC 0x2000
851 #define RS_ODDFRAME 0x1000
852 #define RS_TOOLONG 0x0800
853 #define RS_TOOSHORT 0x0400
854 #define RS_MULTICAST 0x0001
855 #define RS_ERRORS (RS_ALGNERR | RS_BADCRC | RS_TOOLONG | RS_TOOSHORT)
860 * LAN83C183 == LAN91C111 Internal PHY
862 #define PHY_LAN83C183 0x0016f840
863 #define PHY_LAN83C180 0x02821c50
866 * PHY Register Addresses (LAN91C111 Internal PHY)
868 * Generic PHY registers can be found in <linux/mii.h>
870 * These phy registers are specific to our on-board phy.
873 // PHY Configuration Register 1
874 #define PHY_CFG1_REG 0x10
875 #define PHY_CFG1_LNKDIS 0x8000 // 1=Rx Link Detect Function disabled
876 #define PHY_CFG1_XMTDIS 0x4000 // 1=TP Transmitter Disabled
877 #define PHY_CFG1_XMTPDN 0x2000 // 1=TP Transmitter Powered Down
878 #define PHY_CFG1_BYPSCR 0x0400 // 1=Bypass scrambler/descrambler
879 #define PHY_CFG1_UNSCDS 0x0200 // 1=Unscramble Idle Reception Disable
880 #define PHY_CFG1_EQLZR 0x0100 // 1=Rx Equalizer Disabled
881 #define PHY_CFG1_CABLE 0x0080 // 1=STP(150ohm), 0=UTP(100ohm)
882 #define PHY_CFG1_RLVL0 0x0040 // 1=Rx Squelch level reduced by 4.5db
883 #define PHY_CFG1_TLVL_SHIFT 2 // Transmit Output Level Adjust
884 #define PHY_CFG1_TLVL_MASK 0x003C
885 #define PHY_CFG1_TRF_MASK 0x0003 // Transmitter Rise/Fall time
888 // PHY Configuration Register 2
889 #define PHY_CFG2_REG 0x11
890 #define PHY_CFG2_APOLDIS 0x0020 // 1=Auto Polarity Correction disabled
891 #define PHY_CFG2_JABDIS 0x0010 // 1=Jabber disabled
892 #define PHY_CFG2_MREG 0x0008 // 1=Multiple register access (MII mgt)
893 #define PHY_CFG2_INTMDIO 0x0004 // 1=Interrupt signaled with MDIO pulseo
895 // PHY Status Output (and Interrupt status) Register
896 #define PHY_INT_REG 0x12 // Status Output (Interrupt Status)
897 #define PHY_INT_INT 0x8000 // 1=bits have changed since last read
898 #define PHY_INT_LNKFAIL 0x4000 // 1=Link Not detected
899 #define PHY_INT_LOSSSYNC 0x2000 // 1=Descrambler has lost sync
900 #define PHY_INT_CWRD 0x1000 // 1=Invalid 4B5B code detected on rx
901 #define PHY_INT_SSD 0x0800 // 1=No Start Of Stream detected on rx
902 #define PHY_INT_ESD 0x0400 // 1=No End Of Stream detected on rx
903 #define PHY_INT_RPOL 0x0200 // 1=Reverse Polarity detected
904 #define PHY_INT_JAB 0x0100 // 1=Jabber detected
905 #define PHY_INT_SPDDET 0x0080 // 1=100Base-TX mode, 0=10Base-T mode
906 #define PHY_INT_DPLXDET 0x0040 // 1=Device in Full Duplex
908 // PHY Interrupt/Status Mask Register
909 #define PHY_MASK_REG 0x13 // Interrupt Mask
910 // Uses the same bit definitions as PHY_INT_REG
914 * SMC91C96 ethernet config and status registers.
915 * These are in the "attribute" space.
918 #define ECOR_RESET 0x80
919 #define ECOR_LEVEL_IRQ 0x40
920 #define ECOR_WR_ATTRIB 0x04
921 #define ECOR_ENABLE 0x01
924 #define ECSR_IOIS8 0x20
925 #define ECSR_PWRDWN 0x04
926 #define ECSR_INT 0x02
928 #define ATTRIB_SIZE ((64*1024) << SMC_IO_SHIFT)
932 * Macros to abstract register access according to the data bus
933 * capabilities. Please use those and not the in/out primitives.
934 * Note: the following macros do *not* select the bank -- this must
935 * be done separately as needed in the main code. The SMC_REG() macro
936 * only uses the bank argument for debugging purposes (when enabled).
938 * Note: despite inline functions being safer, everything leading to this
939 * should preferably be macros to let BUG() display the line number in
940 * the core source code since we're interested in the top call site
941 * not in any inline function location.
945 #define SMC_REG(reg, bank) \
947 int __b = SMC_CURRENT_BANK(); \
948 if (unlikely((__b & ~0xf0) != (0x3300 | bank))) { \
949 printk( "%s: bank reg screwed (0x%04x)\n", \
956 #define SMC_REG(reg, bank) (reg<<SMC_IO_SHIFT)
960 * Hack Alert: Some setups just can't write 8 or 16 bits reliably when not
961 * aligned to a 32 bit boundary. I tell you that does exist!
962 * Fortunately the affected register accesses can be easily worked around
963 * since we can write zeroes to the preceeding 16 bits without adverse
964 * effects and use a 32-bit access.
966 * Enforce it on any 32-bit capable setup for now.
968 #define SMC_MUST_ALIGN_WRITE SMC_CAN_USE_32BIT
970 #define SMC_GET_PN() \
971 ( SMC_CAN_USE_8BIT ? (SMC_inb(ioaddr, PN_REG)) \
972 : (SMC_inw(ioaddr, PN_REG) & 0xFF) )
974 #define SMC_SET_PN(x) \
976 if (SMC_MUST_ALIGN_WRITE) \
977 SMC_outl((x)<<16, ioaddr, SMC_REG(0, 2)); \
978 else if (SMC_CAN_USE_8BIT) \
979 SMC_outb(x, ioaddr, PN_REG); \
981 SMC_outw(x, ioaddr, PN_REG); \
984 #define SMC_GET_AR() \
985 ( SMC_CAN_USE_8BIT ? (SMC_inb(ioaddr, AR_REG)) \
986 : (SMC_inw(ioaddr, PN_REG) >> 8) )
988 #define SMC_GET_TXFIFO() \
989 ( SMC_CAN_USE_8BIT ? (SMC_inb(ioaddr, TXFIFO_REG)) \
990 : (SMC_inw(ioaddr, TXFIFO_REG) & 0xFF) )
992 #define SMC_GET_RXFIFO() \
993 ( SMC_CAN_USE_8BIT ? (SMC_inb(ioaddr, RXFIFO_REG)) \
994 : (SMC_inw(ioaddr, TXFIFO_REG) >> 8) )
996 #define SMC_GET_INT() \
997 ( SMC_CAN_USE_8BIT ? (SMC_inb(ioaddr, INT_REG)) \
998 : (SMC_inw(ioaddr, INT_REG) & 0xFF) )
1000 #define SMC_ACK_INT(x) \
1002 if (SMC_CAN_USE_8BIT) \
1003 SMC_outb(x, ioaddr, INT_REG); \
1005 unsigned long __flags; \
1007 local_irq_save(__flags); \
1008 __mask = SMC_inw( ioaddr, INT_REG ) & ~0xff; \
1009 SMC_outw( __mask | (x), ioaddr, INT_REG ); \
1010 local_irq_restore(__flags); \
1014 #define SMC_GET_INT_MASK() \
1015 ( SMC_CAN_USE_8BIT ? (SMC_inb(ioaddr, IM_REG)) \
1016 : (SMC_inw( ioaddr, INT_REG ) >> 8) )
1018 #define SMC_SET_INT_MASK(x) \
1020 if (SMC_CAN_USE_8BIT) \
1021 SMC_outb(x, ioaddr, IM_REG); \
1023 SMC_outw((x) << 8, ioaddr, INT_REG); \
1026 #define SMC_CURRENT_BANK() SMC_inw(ioaddr, BANK_SELECT)
1028 #define SMC_SELECT_BANK(x) \
1030 if (SMC_MUST_ALIGN_WRITE) \
1031 SMC_outl((x)<<16, ioaddr, 12<<SMC_IO_SHIFT); \
1033 SMC_outw(x, ioaddr, BANK_SELECT); \
1036 #define SMC_GET_BASE() SMC_inw(ioaddr, BASE_REG)
1038 #define SMC_SET_BASE(x) SMC_outw(x, ioaddr, BASE_REG)
1040 #define SMC_GET_CONFIG() SMC_inw(ioaddr, CONFIG_REG)
1042 #define SMC_SET_CONFIG(x) SMC_outw(x, ioaddr, CONFIG_REG)
1044 #define SMC_GET_COUNTER() SMC_inw(ioaddr, COUNTER_REG)
1046 #define SMC_GET_CTL() SMC_inw(ioaddr, CTL_REG)
1048 #define SMC_SET_CTL(x) SMC_outw(x, ioaddr, CTL_REG)
1050 #define SMC_GET_MII() SMC_inw(ioaddr, MII_REG)
1052 #define SMC_SET_MII(x) SMC_outw(x, ioaddr, MII_REG)
1054 #define SMC_GET_MIR() SMC_inw(ioaddr, MIR_REG)
1056 #define SMC_SET_MIR(x) SMC_outw(x, ioaddr, MIR_REG)
1058 #define SMC_GET_MMU_CMD() SMC_inw(ioaddr, MMU_CMD_REG)
1060 #define SMC_SET_MMU_CMD(x) SMC_outw(x, ioaddr, MMU_CMD_REG)
1062 #define SMC_GET_FIFO() SMC_inw(ioaddr, FIFO_REG)
1064 #define SMC_GET_PTR() SMC_inw(ioaddr, PTR_REG)
1066 #define SMC_SET_PTR(x) \
1068 if (SMC_MUST_ALIGN_WRITE) \
1069 SMC_outl((x)<<16, ioaddr, SMC_REG(4, 2)); \
1071 SMC_outw(x, ioaddr, PTR_REG); \
1074 #define SMC_GET_EPH_STATUS() SMC_inw(ioaddr, EPH_STATUS_REG)
1076 #define SMC_GET_RCR() SMC_inw(ioaddr, RCR_REG)
1078 #define SMC_SET_RCR(x) SMC_outw(x, ioaddr, RCR_REG)
1080 #define SMC_GET_REV() SMC_inw(ioaddr, REV_REG)
1082 #define SMC_GET_RPC() SMC_inw(ioaddr, RPC_REG)
1084 #define SMC_SET_RPC(x) \
1086 if (SMC_MUST_ALIGN_WRITE) \
1087 SMC_outl((x)<<16, ioaddr, SMC_REG(8, 0)); \
1089 SMC_outw(x, ioaddr, RPC_REG); \
1092 #define SMC_GET_TCR() SMC_inw(ioaddr, TCR_REG)
1094 #define SMC_SET_TCR(x) SMC_outw(x, ioaddr, TCR_REG)
1096 #ifndef SMC_GET_MAC_ADDR
1097 #define SMC_GET_MAC_ADDR(addr) \
1100 __v = SMC_inw( ioaddr, ADDR0_REG ); \
1101 addr[0] = __v; addr[1] = __v >> 8; \
1102 __v = SMC_inw( ioaddr, ADDR1_REG ); \
1103 addr[2] = __v; addr[3] = __v >> 8; \
1104 __v = SMC_inw( ioaddr, ADDR2_REG ); \
1105 addr[4] = __v; addr[5] = __v >> 8; \
1109 #define SMC_SET_MAC_ADDR(addr) \
1111 SMC_outw( addr[0]|(addr[1] << 8), ioaddr, ADDR0_REG ); \
1112 SMC_outw( addr[2]|(addr[3] << 8), ioaddr, ADDR1_REG ); \
1113 SMC_outw( addr[4]|(addr[5] << 8), ioaddr, ADDR2_REG ); \
1116 #define SMC_SET_MCAST(x) \
1118 const unsigned char *mt = (x); \
1119 SMC_outw( mt[0] | (mt[1] << 8), ioaddr, MCAST_REG1 ); \
1120 SMC_outw( mt[2] | (mt[3] << 8), ioaddr, MCAST_REG2 ); \
1121 SMC_outw( mt[4] | (mt[5] << 8), ioaddr, MCAST_REG3 ); \
1122 SMC_outw( mt[6] | (mt[7] << 8), ioaddr, MCAST_REG4 ); \
1125 #define SMC_PUT_PKT_HDR(status, length) \
1127 if (SMC_CAN_USE_32BIT) \
1128 SMC_outl((status) | (length)<<16, ioaddr, DATA_REG); \
1130 SMC_outw(status, ioaddr, DATA_REG); \
1131 SMC_outw(length, ioaddr, DATA_REG); \
1135 #define SMC_GET_PKT_HDR(status, length) \
1137 if (SMC_CAN_USE_32BIT) { \
1138 unsigned int __val = SMC_inl(ioaddr, DATA_REG); \
1139 (status) = __val & 0xffff; \
1140 (length) = __val >> 16; \
1142 (status) = SMC_inw(ioaddr, DATA_REG); \
1143 (length) = SMC_inw(ioaddr, DATA_REG); \
1147 #define SMC_PUSH_DATA(p, l) \
1149 if (SMC_CAN_USE_32BIT) { \
1150 void *__ptr = (p); \
1152 void *__ioaddr = ioaddr; \
1153 if (__len >= 2 && (unsigned long)__ptr & 2) { \
1155 SMC_outw(*(u16 *)__ptr, ioaddr, DATA_REG); \
1158 if (SMC_CAN_USE_DATACS && lp->datacs) \
1159 __ioaddr = lp->datacs; \
1160 SMC_outsl(__ioaddr, DATA_REG, __ptr, __len>>2); \
1162 __ptr += (__len & ~3); \
1163 SMC_outw(*((u16 *)__ptr), ioaddr, DATA_REG); \
1165 } else if (SMC_CAN_USE_16BIT) \
1166 SMC_outsw(ioaddr, DATA_REG, p, (l) >> 1); \
1167 else if (SMC_CAN_USE_8BIT) \
1168 SMC_outsb(ioaddr, DATA_REG, p, l); \
1171 #define SMC_PULL_DATA(p, l) \
1173 if (SMC_CAN_USE_32BIT) { \
1174 void *__ptr = (p); \
1176 void *__ioaddr = ioaddr; \
1177 if ((unsigned long)__ptr & 2) { \
1179 * We want 32bit alignment here. \
1180 * Since some buses perform a full \
1181 * 32bit fetch even for 16bit data \
1182 * we can't use SMC_inw() here. \
1183 * Back both source (on-chip) and \
1184 * destination pointers of 2 bytes. \
1185 * This is possible since the call to \
1186 * SMC_GET_PKT_HDR() already advanced \
1187 * the source pointer of 4 bytes, and \
1188 * the skb_reserve(skb, 2) advanced \
1189 * the destination pointer of 2 bytes. \
1193 SMC_SET_PTR(2|PTR_READ|PTR_RCV|PTR_AUTOINC); \
1195 if (SMC_CAN_USE_DATACS && lp->datacs) \
1196 __ioaddr = lp->datacs; \
1198 SMC_insl(__ioaddr, DATA_REG, __ptr, __len>>2); \
1199 } else if (SMC_CAN_USE_16BIT) \
1200 SMC_insw(ioaddr, DATA_REG, p, (l) >> 1); \
1201 else if (SMC_CAN_USE_8BIT) \
1202 SMC_insb(ioaddr, DATA_REG, p, l); \
1205 #endif /* _SMC91X_H_ */