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
139 #define SMC_USE_PXA_DMA 1
141 #define SMC_inb(a, r) readb((a) + (r))
142 #define SMC_inw(a, r) readw((a) + (r))
143 #define SMC_inl(a, r) readl((a) + (r))
144 #define SMC_outb(v, a, r) writeb(v, (a) + (r))
145 #define SMC_outw(v, a, r) writew(v, (a) + (r))
146 #define SMC_outl(v, a, r) writel(v, (a) + (r))
147 #define SMC_insw(a, r, p, l) readsw((a) + (r), p, l)
148 #define SMC_outsw(a, r, p, l) writesw((a) + (r), p, l)
150 #elif defined(CONFIG_ARCH_INNOKOM) || \
151 defined(CONFIG_MACH_MAINSTONE) || \
152 defined(CONFIG_ARCH_PXA_IDP) || \
153 defined(CONFIG_ARCH_RAMSES)
155 #define SMC_CAN_USE_8BIT 1
156 #define SMC_CAN_USE_16BIT 1
157 #define SMC_CAN_USE_32BIT 1
158 #define SMC_IO_SHIFT 0
160 #define SMC_USE_PXA_DMA 1
162 #define SMC_inb(a, r) readb((a) + (r))
163 #define SMC_inw(a, r) readw((a) + (r))
164 #define SMC_inl(a, r) readl((a) + (r))
165 #define SMC_outb(v, a, r) writeb(v, (a) + (r))
166 #define SMC_outl(v, a, r) writel(v, (a) + (r))
167 #define SMC_insl(a, r, p, l) readsl((a) + (r), p, l)
168 #define SMC_outsl(a, r, p, l) writesl((a) + (r), p, l)
170 /* We actually can't write halfwords properly if not word aligned */
172 SMC_outw(u16 val, void __iomem *ioaddr, int reg)
175 unsigned int v = val << 16;
176 v |= readl(ioaddr + (reg & ~2)) & 0xffff;
177 writel(v, ioaddr + (reg & ~2));
179 writew(val, ioaddr + reg);
183 #elif defined(CONFIG_ARCH_OMAP)
185 /* We can only do 16-bit reads and writes in the static memory space. */
186 #define SMC_CAN_USE_8BIT 0
187 #define SMC_CAN_USE_16BIT 1
188 #define SMC_CAN_USE_32BIT 0
189 #define SMC_IO_SHIFT 0
192 #define SMC_inb(a, r) readb((a) + (r))
193 #define SMC_outb(v, a, r) writeb(v, (a) + (r))
194 #define SMC_inw(a, r) readw((a) + (r))
195 #define SMC_outw(v, a, r) writew(v, (a) + (r))
196 #define SMC_insw(a, r, p, l) readsw((a) + (r), p, l)
197 #define SMC_outsw(a, r, p, l) writesw((a) + (r), p, l)
198 #define SMC_inl(a, r) readl((a) + (r))
199 #define SMC_outl(v, a, r) writel(v, (a) + (r))
200 #define SMC_insl(a, r, p, l) readsl((a) + (r), p, l)
201 #define SMC_outsl(a, r, p, l) writesl((a) + (r), p, l)
203 #include <asm/mach-types.h>
204 #include <asm/arch/cpu.h>
206 #define SMC_IRQ_FLAGS (( \
207 machine_is_omap_h2() \
208 || machine_is_omap_h3() \
209 || machine_is_omap_h4() \
210 || (machine_is_omap_innovator() && !cpu_is_omap1510()) \
211 ) ? IRQF_TRIGGER_FALLING : IRQF_TRIGGER_RISING)
214 #elif defined(CONFIG_SH_SH4202_MICRODEV)
216 #define SMC_CAN_USE_8BIT 0
217 #define SMC_CAN_USE_16BIT 1
218 #define SMC_CAN_USE_32BIT 0
220 #define SMC_inb(a, r) inb((a) + (r) - 0xa0000000)
221 #define SMC_inw(a, r) inw((a) + (r) - 0xa0000000)
222 #define SMC_inl(a, r) inl((a) + (r) - 0xa0000000)
223 #define SMC_outb(v, a, r) outb(v, (a) + (r) - 0xa0000000)
224 #define SMC_outw(v, a, r) outw(v, (a) + (r) - 0xa0000000)
225 #define SMC_outl(v, a, r) outl(v, (a) + (r) - 0xa0000000)
226 #define SMC_insl(a, r, p, l) insl((a) + (r) - 0xa0000000, p, l)
227 #define SMC_outsl(a, r, p, l) outsl((a) + (r) - 0xa0000000, p, l)
228 #define SMC_insw(a, r, p, l) insw((a) + (r) - 0xa0000000, p, l)
229 #define SMC_outsw(a, r, p, l) outsw((a) + (r) - 0xa0000000, p, l)
231 #define SMC_IRQ_FLAGS (0)
233 #elif defined(CONFIG_ISA)
235 #define SMC_CAN_USE_8BIT 1
236 #define SMC_CAN_USE_16BIT 1
237 #define SMC_CAN_USE_32BIT 0
239 #define SMC_inb(a, r) inb((a) + (r))
240 #define SMC_inw(a, r) inw((a) + (r))
241 #define SMC_outb(v, a, r) outb(v, (a) + (r))
242 #define SMC_outw(v, a, r) outw(v, (a) + (r))
243 #define SMC_insw(a, r, p, l) insw((a) + (r), p, l)
244 #define SMC_outsw(a, r, p, l) outsw((a) + (r), p, l)
246 #elif defined(CONFIG_M32R)
248 #define SMC_CAN_USE_8BIT 0
249 #define SMC_CAN_USE_16BIT 1
250 #define SMC_CAN_USE_32BIT 0
252 #define SMC_inb(a, r) inb((u32)a) + (r))
253 #define SMC_inw(a, r) inw(((u32)a) + (r))
254 #define SMC_outb(v, a, r) outb(v, ((u32)a) + (r))
255 #define SMC_outw(v, a, r) outw(v, ((u32)a) + (r))
256 #define SMC_insw(a, r, p, l) insw(((u32)a) + (r), p, l)
257 #define SMC_outsw(a, r, p, l) outsw(((u32)a) + (r), p, l)
259 #define SMC_IRQ_FLAGS (0)
261 #define RPC_LSA_DEFAULT RPC_LED_TX_RX
262 #define RPC_LSB_DEFAULT RPC_LED_100_10
264 #elif defined(CONFIG_MACH_LPD79520) \
265 || defined(CONFIG_MACH_LPD7A400) \
266 || defined(CONFIG_MACH_LPD7A404)
268 /* The LPD7X_IOBARRIER is necessary to overcome a mismatch between the
269 * way that the CPU handles chip selects and the way that the SMC chip
270 * expects the chip select to operate. Refer to
271 * Documentation/arm/Sharp-LH/IOBarrier for details. The read from
272 * IOBARRIER is a byte, in order that we read the least-common
273 * denominator. It would be wasteful to read 32 bits from an 8-bit
276 * There is no explicit protection against interrupts intervening
277 * between the writew and the IOBARRIER. In SMC ISR there is a
278 * preamble that performs an IOBARRIER in the extremely unlikely event
279 * that the driver interrupts itself between a writew to the chip an
280 * the IOBARRIER that follows *and* the cache is large enough that the
281 * first off-chip access while handing the interrupt is to the SMC
282 * chip. Other devices in the same address space as the SMC chip must
283 * be aware of the potential for trouble and perform a similar
284 * IOBARRIER on entry to their ISR.
287 #include <asm/arch/constants.h> /* IOBARRIER_VIRT */
289 #define SMC_CAN_USE_8BIT 0
290 #define SMC_CAN_USE_16BIT 1
291 #define SMC_CAN_USE_32BIT 0
293 #define LPD7X_IOBARRIER readb (IOBARRIER_VIRT)
295 #define SMC_inw(a,r)\
296 ({ unsigned short v = readw ((void*) ((a) + (r))); LPD7X_IOBARRIER; v; })
297 #define SMC_outw(v,a,r) ({ writew ((v), (a) + (r)); LPD7X_IOBARRIER; })
299 #define SMC_insw LPD7_SMC_insw
300 static inline void LPD7_SMC_insw (unsigned char* a, int r,
301 unsigned char* p, int l)
303 unsigned short* ps = (unsigned short*) p;
305 *ps++ = readw (a + r);
310 #define SMC_outsw LPD7_SMC_outsw
311 static inline void LPD7_SMC_outsw (unsigned char* a, int r,
312 unsigned char* p, int l)
314 unsigned short* ps = (unsigned short*) p;
316 writew (*ps++, a + r);
321 #define SMC_INTERRUPT_PREAMBLE LPD7X_IOBARRIER
323 #define RPC_LSA_DEFAULT RPC_LED_TX_RX
324 #define RPC_LSB_DEFAULT RPC_LED_100_10
326 #elif defined(CONFIG_SOC_AU1X00)
330 /* We can only do 16-bit reads and writes in the static memory space. */
331 #define SMC_CAN_USE_8BIT 0
332 #define SMC_CAN_USE_16BIT 1
333 #define SMC_CAN_USE_32BIT 0
334 #define SMC_IO_SHIFT 0
337 #define SMC_inw(a, r) au_readw((unsigned long)((a) + (r)))
338 #define SMC_insw(a, r, p, l) \
340 unsigned long _a = (unsigned long)((a) + (r)); \
342 u16 *_p = (u16 *)(p); \
344 *_p++ = au_readw(_a); \
346 #define SMC_outw(v, a, r) au_writew(v, (unsigned long)((a) + (r)))
347 #define SMC_outsw(a, r, p, l) \
349 unsigned long _a = (unsigned long)((a) + (r)); \
351 const u16 *_p = (const u16 *)(p); \
353 au_writew(*_p++ , _a); \
356 #define SMC_IRQ_FLAGS (0)
358 #elif defined(CONFIG_ARCH_VERSATILE)
360 #define SMC_CAN_USE_8BIT 1
361 #define SMC_CAN_USE_16BIT 1
362 #define SMC_CAN_USE_32BIT 1
365 #define SMC_inb(a, r) readb((a) + (r))
366 #define SMC_inw(a, r) readw((a) + (r))
367 #define SMC_inl(a, r) readl((a) + (r))
368 #define SMC_outb(v, a, r) writeb(v, (a) + (r))
369 #define SMC_outw(v, a, r) writew(v, (a) + (r))
370 #define SMC_outl(v, a, r) writel(v, (a) + (r))
371 #define SMC_insl(a, r, p, l) readsl((a) + (r), p, l)
372 #define SMC_outsl(a, r, p, l) writesl((a) + (r), p, l)
374 #define SMC_IRQ_FLAGS (0)
378 #define SMC_CAN_USE_8BIT 1
379 #define SMC_CAN_USE_16BIT 1
380 #define SMC_CAN_USE_32BIT 1
383 #define SMC_inb(a, r) readb((a) + (r))
384 #define SMC_inw(a, r) readw((a) + (r))
385 #define SMC_inl(a, r) readl((a) + (r))
386 #define SMC_outb(v, a, r) writeb(v, (a) + (r))
387 #define SMC_outw(v, a, r) writew(v, (a) + (r))
388 #define SMC_outl(v, a, r) writel(v, (a) + (r))
389 #define SMC_insl(a, r, p, l) readsl((a) + (r), p, l)
390 #define SMC_outsl(a, r, p, l) writesl((a) + (r), p, l)
392 #define RPC_LSA_DEFAULT RPC_LED_100_10
393 #define RPC_LSB_DEFAULT RPC_LED_TX_RX
397 #ifdef SMC_USE_PXA_DMA
399 * Let's use the DMA engine on the XScale PXA2xx for RX packets. This is
400 * always happening in irq context so no need to worry about races. TX is
401 * different and probably not worth it for that reason, and not as critical
402 * as RX which can overrun memory and lose packets.
404 #include <linux/dma-mapping.h>
406 #include <asm/arch/pxa-regs.h>
410 #define SMC_insl(a, r, p, l) \
411 smc_pxa_dma_insl(a, lp->physaddr, r, dev->dma, p, l)
413 smc_pxa_dma_insl(void __iomem *ioaddr, u_long physaddr, int reg, int dma,
414 u_char *buf, int len)
418 /* fallback if no DMA available */
419 if (dma == (unsigned char)-1) {
420 readsl(ioaddr + reg, buf, len);
424 /* 64 bit alignment is required for memory to memory DMA */
426 *((u32 *)buf) = SMC_inl(ioaddr, reg);
432 dmabuf = dma_map_single(NULL, buf, len, DMA_FROM_DEVICE);
433 DCSR(dma) = DCSR_NODESC;
435 DSADR(dma) = physaddr + reg;
436 DCMD(dma) = (DCMD_INCTRGADDR | DCMD_BURST32 |
437 DCMD_WIDTH4 | (DCMD_LENGTH & len));
438 DCSR(dma) = DCSR_NODESC | DCSR_RUN;
439 while (!(DCSR(dma) & DCSR_STOPSTATE))
442 dma_unmap_single(NULL, dmabuf, len, DMA_FROM_DEVICE);
448 #define SMC_insw(a, r, p, l) \
449 smc_pxa_dma_insw(a, lp->physaddr, r, dev->dma, p, l)
451 smc_pxa_dma_insw(void __iomem *ioaddr, u_long physaddr, int reg, int dma,
452 u_char *buf, int len)
456 /* fallback if no DMA available */
457 if (dma == (unsigned char)-1) {
458 readsw(ioaddr + reg, buf, len);
462 /* 64 bit alignment is required for memory to memory DMA */
463 while ((long)buf & 6) {
464 *((u16 *)buf) = SMC_inw(ioaddr, reg);
470 dmabuf = dma_map_single(NULL, buf, len, DMA_FROM_DEVICE);
471 DCSR(dma) = DCSR_NODESC;
473 DSADR(dma) = physaddr + reg;
474 DCMD(dma) = (DCMD_INCTRGADDR | DCMD_BURST32 |
475 DCMD_WIDTH2 | (DCMD_LENGTH & len));
476 DCSR(dma) = DCSR_NODESC | DCSR_RUN;
477 while (!(DCSR(dma) & DCSR_STOPSTATE))
480 dma_unmap_single(NULL, dmabuf, len, DMA_FROM_DEVICE);
485 smc_pxa_dma_irq(int dma, void *dummy, struct pt_regs *regs)
489 #endif /* SMC_USE_PXA_DMA */
493 * Everything a particular hardware setup needs should have been defined
494 * at this point. Add stubs for the undefined cases, mainly to avoid
495 * compilation warnings since they'll be optimized away, or to prevent buggy
499 #if ! SMC_CAN_USE_32BIT
500 #define SMC_inl(ioaddr, reg) ({ BUG(); 0; })
501 #define SMC_outl(x, ioaddr, reg) BUG()
502 #define SMC_insl(a, r, p, l) BUG()
503 #define SMC_outsl(a, r, p, l) BUG()
506 #if !defined(SMC_insl) || !defined(SMC_outsl)
507 #define SMC_insl(a, r, p, l) BUG()
508 #define SMC_outsl(a, r, p, l) BUG()
511 #if ! SMC_CAN_USE_16BIT
514 * Any 16-bit access is performed with two 8-bit accesses if the hardware
515 * can't do it directly. Most registers are 16-bit so those are mandatory.
517 #define SMC_outw(x, ioaddr, reg) \
519 unsigned int __val16 = (x); \
520 SMC_outb( __val16, ioaddr, reg ); \
521 SMC_outb( __val16 >> 8, ioaddr, reg + (1 << SMC_IO_SHIFT));\
523 #define SMC_inw(ioaddr, reg) \
525 unsigned int __val16; \
526 __val16 = SMC_inb( ioaddr, reg ); \
527 __val16 |= SMC_inb( ioaddr, reg + (1 << SMC_IO_SHIFT)) << 8; \
531 #define SMC_insw(a, r, p, l) BUG()
532 #define SMC_outsw(a, r, p, l) BUG()
536 #if !defined(SMC_insw) || !defined(SMC_outsw)
537 #define SMC_insw(a, r, p, l) BUG()
538 #define SMC_outsw(a, r, p, l) BUG()
541 #if ! SMC_CAN_USE_8BIT
542 #define SMC_inb(ioaddr, reg) ({ BUG(); 0; })
543 #define SMC_outb(x, ioaddr, reg) BUG()
544 #define SMC_insb(a, r, p, l) BUG()
545 #define SMC_outsb(a, r, p, l) BUG()
548 #if !defined(SMC_insb) || !defined(SMC_outsb)
549 #define SMC_insb(a, r, p, l) BUG()
550 #define SMC_outsb(a, r, p, l) BUG()
553 #ifndef SMC_CAN_USE_DATACS
554 #define SMC_CAN_USE_DATACS 0
558 #define SMC_IO_SHIFT 0
561 #ifndef SMC_IRQ_FLAGS
562 #define SMC_IRQ_FLAGS IRQF_TRIGGER_RISING
565 #ifndef SMC_INTERRUPT_PREAMBLE
566 #define SMC_INTERRUPT_PREAMBLE
570 /* Because of bank switching, the LAN91x uses only 16 I/O ports */
571 #define SMC_IO_EXTENT (16 << SMC_IO_SHIFT)
572 #define SMC_DATA_EXTENT (4)
575 . Bank Select Register:
577 . yyyy yyyy 0000 00xx
579 . yyyy yyyy = 0x33, for identification purposes.
581 #define BANK_SELECT (14 << SMC_IO_SHIFT)
584 // Transmit Control Register
586 #define TCR_REG SMC_REG(0x0000, 0)
587 #define TCR_ENABLE 0x0001 // When 1 we can transmit
588 #define TCR_LOOP 0x0002 // Controls output pin LBK
589 #define TCR_FORCOL 0x0004 // When 1 will force a collision
590 #define TCR_PAD_EN 0x0080 // When 1 will pad tx frames < 64 bytes w/0
591 #define TCR_NOCRC 0x0100 // When 1 will not append CRC to tx frames
592 #define TCR_MON_CSN 0x0400 // When 1 tx monitors carrier
593 #define TCR_FDUPLX 0x0800 // When 1 enables full duplex operation
594 #define TCR_STP_SQET 0x1000 // When 1 stops tx if Signal Quality Error
595 #define TCR_EPH_LOOP 0x2000 // When 1 enables EPH block loopback
596 #define TCR_SWFDUP 0x8000 // When 1 enables Switched Full Duplex mode
598 #define TCR_CLEAR 0 /* do NOTHING */
599 /* the default settings for the TCR register : */
600 #define TCR_DEFAULT (TCR_ENABLE | TCR_PAD_EN)
603 // EPH Status Register
605 #define EPH_STATUS_REG SMC_REG(0x0002, 0)
606 #define ES_TX_SUC 0x0001 // Last TX was successful
607 #define ES_SNGL_COL 0x0002 // Single collision detected for last tx
608 #define ES_MUL_COL 0x0004 // Multiple collisions detected for last tx
609 #define ES_LTX_MULT 0x0008 // Last tx was a multicast
610 #define ES_16COL 0x0010 // 16 Collisions Reached
611 #define ES_SQET 0x0020 // Signal Quality Error Test
612 #define ES_LTXBRD 0x0040 // Last tx was a broadcast
613 #define ES_TXDEFR 0x0080 // Transmit Deferred
614 #define ES_LATCOL 0x0200 // Late collision detected on last tx
615 #define ES_LOSTCARR 0x0400 // Lost Carrier Sense
616 #define ES_EXC_DEF 0x0800 // Excessive Deferral
617 #define ES_CTR_ROL 0x1000 // Counter Roll Over indication
618 #define ES_LINK_OK 0x4000 // Driven by inverted value of nLNK pin
619 #define ES_TXUNRN 0x8000 // Tx Underrun
622 // Receive Control Register
624 #define RCR_REG SMC_REG(0x0004, 0)
625 #define RCR_RX_ABORT 0x0001 // Set if a rx frame was aborted
626 #define RCR_PRMS 0x0002 // Enable promiscuous mode
627 #define RCR_ALMUL 0x0004 // When set accepts all multicast frames
628 #define RCR_RXEN 0x0100 // IFF this is set, we can receive packets
629 #define RCR_STRIP_CRC 0x0200 // When set strips CRC from rx packets
630 #define RCR_ABORT_ENB 0x0200 // When set will abort rx on collision
631 #define RCR_FILT_CAR 0x0400 // When set filters leading 12 bit s of carrier
632 #define RCR_SOFTRST 0x8000 // resets the chip
634 /* the normal settings for the RCR register : */
635 #define RCR_DEFAULT (RCR_STRIP_CRC | RCR_RXEN)
636 #define RCR_CLEAR 0x0 // set it to a base state
641 #define COUNTER_REG SMC_REG(0x0006, 0)
644 // Memory Information Register
646 #define MIR_REG SMC_REG(0x0008, 0)
649 // Receive/Phy Control Register
651 #define RPC_REG SMC_REG(0x000A, 0)
652 #define RPC_SPEED 0x2000 // When 1 PHY is in 100Mbps mode.
653 #define RPC_DPLX 0x1000 // When 1 PHY is in Full-Duplex Mode
654 #define RPC_ANEG 0x0800 // When 1 PHY is in Auto-Negotiate Mode
655 #define RPC_LSXA_SHFT 5 // Bits to shift LS2A,LS1A,LS0A to lsb
656 #define RPC_LSXB_SHFT 2 // Bits to get LS2B,LS1B,LS0B to lsb
657 #define RPC_LED_100_10 (0x00) // LED = 100Mbps OR's with 10Mbps link detect
658 #define RPC_LED_RES (0x01) // LED = Reserved
659 #define RPC_LED_10 (0x02) // LED = 10Mbps link detect
660 #define RPC_LED_FD (0x03) // LED = Full Duplex Mode
661 #define RPC_LED_TX_RX (0x04) // LED = TX or RX packet occurred
662 #define RPC_LED_100 (0x05) // LED = 100Mbps link dectect
663 #define RPC_LED_TX (0x06) // LED = TX packet occurred
664 #define RPC_LED_RX (0x07) // LED = RX packet occurred
666 #ifndef RPC_LSA_DEFAULT
667 #define RPC_LSA_DEFAULT RPC_LED_100
669 #ifndef RPC_LSB_DEFAULT
670 #define RPC_LSB_DEFAULT RPC_LED_FD
673 #define RPC_DEFAULT (RPC_ANEG | (RPC_LSA_DEFAULT << RPC_LSXA_SHFT) | (RPC_LSB_DEFAULT << RPC_LSXB_SHFT) | RPC_SPEED | RPC_DPLX)
676 /* Bank 0 0x0C is reserved */
678 // Bank Select Register
680 #define BSR_REG 0x000E
685 #define CONFIG_REG SMC_REG(0x0000, 1)
686 #define CONFIG_EXT_PHY 0x0200 // 1=external MII, 0=internal Phy
687 #define CONFIG_GPCNTRL 0x0400 // Inverse value drives pin nCNTRL
688 #define CONFIG_NO_WAIT 0x1000 // When 1 no extra wait states on ISA bus
689 #define CONFIG_EPH_POWER_EN 0x8000 // When 0 EPH is placed into low power mode.
691 // Default is powered-up, Internal Phy, Wait States, and pin nCNTRL=low
692 #define CONFIG_DEFAULT (CONFIG_EPH_POWER_EN)
695 // Base Address Register
697 #define BASE_REG SMC_REG(0x0002, 1)
700 // Individual Address Registers
702 #define ADDR0_REG SMC_REG(0x0004, 1)
703 #define ADDR1_REG SMC_REG(0x0006, 1)
704 #define ADDR2_REG SMC_REG(0x0008, 1)
707 // General Purpose Register
709 #define GP_REG SMC_REG(0x000A, 1)
714 #define CTL_REG SMC_REG(0x000C, 1)
715 #define CTL_RCV_BAD 0x4000 // When 1 bad CRC packets are received
716 #define CTL_AUTO_RELEASE 0x0800 // When 1 tx pages are released automatically
717 #define CTL_LE_ENABLE 0x0080 // When 1 enables Link Error interrupt
718 #define CTL_CR_ENABLE 0x0040 // When 1 enables Counter Rollover interrupt
719 #define CTL_TE_ENABLE 0x0020 // When 1 enables Transmit Error interrupt
720 #define CTL_EEPROM_SELECT 0x0004 // Controls EEPROM reload & store
721 #define CTL_RELOAD 0x0002 // When set reads EEPROM into registers
722 #define CTL_STORE 0x0001 // When set stores registers into EEPROM
725 // MMU Command Register
727 #define MMU_CMD_REG SMC_REG(0x0000, 2)
728 #define MC_BUSY 1 // When 1 the last release has not completed
729 #define MC_NOP (0<<5) // No Op
730 #define MC_ALLOC (1<<5) // OR with number of 256 byte packets
731 #define MC_RESET (2<<5) // Reset MMU to initial state
732 #define MC_REMOVE (3<<5) // Remove the current rx packet
733 #define MC_RELEASE (4<<5) // Remove and release the current rx packet
734 #define MC_FREEPKT (5<<5) // Release packet in PNR register
735 #define MC_ENQUEUE (6<<5) // Enqueue the packet for transmit
736 #define MC_RSTTXFIFO (7<<5) // Reset the TX FIFOs
739 // Packet Number Register
741 #define PN_REG SMC_REG(0x0002, 2)
744 // Allocation Result Register
746 #define AR_REG SMC_REG(0x0003, 2)
747 #define AR_FAILED 0x80 // Alocation Failed
750 // TX FIFO Ports Register
752 #define TXFIFO_REG SMC_REG(0x0004, 2)
753 #define TXFIFO_TEMPTY 0x80 // TX FIFO Empty
755 // RX FIFO Ports Register
757 #define RXFIFO_REG SMC_REG(0x0005, 2)
758 #define RXFIFO_REMPTY 0x80 // RX FIFO Empty
760 #define FIFO_REG SMC_REG(0x0004, 2)
764 #define PTR_REG SMC_REG(0x0006, 2)
765 #define PTR_RCV 0x8000 // 1=Receive area, 0=Transmit area
766 #define PTR_AUTOINC 0x4000 // Auto increment the pointer on each access
767 #define PTR_READ 0x2000 // When 1 the operation is a read
772 #define DATA_REG SMC_REG(0x0008, 2)
775 // Interrupt Status/Acknowledge Register
777 #define INT_REG SMC_REG(0x000C, 2)
780 // Interrupt Mask Register
782 #define IM_REG SMC_REG(0x000D, 2)
783 #define IM_MDINT 0x80 // PHY MI Register 18 Interrupt
784 #define IM_ERCV_INT 0x40 // Early Receive Interrupt
785 #define IM_EPH_INT 0x20 // Set by Ethernet Protocol Handler section
786 #define IM_RX_OVRN_INT 0x10 // Set by Receiver Overruns
787 #define IM_ALLOC_INT 0x08 // Set when allocation request is completed
788 #define IM_TX_EMPTY_INT 0x04 // Set if the TX FIFO goes empty
789 #define IM_TX_INT 0x02 // Transmit Interrupt
790 #define IM_RCV_INT 0x01 // Receive Interrupt
793 // Multicast Table Registers
795 #define MCAST_REG1 SMC_REG(0x0000, 3)
796 #define MCAST_REG2 SMC_REG(0x0002, 3)
797 #define MCAST_REG3 SMC_REG(0x0004, 3)
798 #define MCAST_REG4 SMC_REG(0x0006, 3)
801 // Management Interface Register (MII)
803 #define MII_REG SMC_REG(0x0008, 3)
804 #define MII_MSK_CRS100 0x4000 // Disables CRS100 detection during tx half dup
805 #define MII_MDOE 0x0008 // MII Output Enable
806 #define MII_MCLK 0x0004 // MII Clock, pin MDCLK
807 #define MII_MDI 0x0002 // MII Input, pin MDI
808 #define MII_MDO 0x0001 // MII Output, pin MDO
813 /* ( hi: chip id low: rev # ) */
814 #define REV_REG SMC_REG(0x000A, 3)
817 // Early RCV Register
819 /* this is NOT on SMC9192 */
820 #define ERCV_REG SMC_REG(0x000C, 3)
821 #define ERCV_RCV_DISCRD 0x0080 // When 1 discards a packet being received
822 #define ERCV_THRESHOLD 0x001F // ERCV Threshold Mask
827 #define EXT_REG SMC_REG(0x0000, 7)
835 #define CHIP_91100FD 8
836 #define CHIP_91111FD 9
838 static const char * chip_ids[ 16 ] = {
840 /* 3 */ "SMC91C90/91C92",
845 /* 8 */ "SMC91C100FD",
846 /* 9 */ "SMC91C11xFD",
852 . Receive status bits
854 #define RS_ALGNERR 0x8000
855 #define RS_BRODCAST 0x4000
856 #define RS_BADCRC 0x2000
857 #define RS_ODDFRAME 0x1000
858 #define RS_TOOLONG 0x0800
859 #define RS_TOOSHORT 0x0400
860 #define RS_MULTICAST 0x0001
861 #define RS_ERRORS (RS_ALGNERR | RS_BADCRC | RS_TOOLONG | RS_TOOSHORT)
866 * LAN83C183 == LAN91C111 Internal PHY
868 #define PHY_LAN83C183 0x0016f840
869 #define PHY_LAN83C180 0x02821c50
872 * PHY Register Addresses (LAN91C111 Internal PHY)
874 * Generic PHY registers can be found in <linux/mii.h>
876 * These phy registers are specific to our on-board phy.
879 // PHY Configuration Register 1
880 #define PHY_CFG1_REG 0x10
881 #define PHY_CFG1_LNKDIS 0x8000 // 1=Rx Link Detect Function disabled
882 #define PHY_CFG1_XMTDIS 0x4000 // 1=TP Transmitter Disabled
883 #define PHY_CFG1_XMTPDN 0x2000 // 1=TP Transmitter Powered Down
884 #define PHY_CFG1_BYPSCR 0x0400 // 1=Bypass scrambler/descrambler
885 #define PHY_CFG1_UNSCDS 0x0200 // 1=Unscramble Idle Reception Disable
886 #define PHY_CFG1_EQLZR 0x0100 // 1=Rx Equalizer Disabled
887 #define PHY_CFG1_CABLE 0x0080 // 1=STP(150ohm), 0=UTP(100ohm)
888 #define PHY_CFG1_RLVL0 0x0040 // 1=Rx Squelch level reduced by 4.5db
889 #define PHY_CFG1_TLVL_SHIFT 2 // Transmit Output Level Adjust
890 #define PHY_CFG1_TLVL_MASK 0x003C
891 #define PHY_CFG1_TRF_MASK 0x0003 // Transmitter Rise/Fall time
894 // PHY Configuration Register 2
895 #define PHY_CFG2_REG 0x11
896 #define PHY_CFG2_APOLDIS 0x0020 // 1=Auto Polarity Correction disabled
897 #define PHY_CFG2_JABDIS 0x0010 // 1=Jabber disabled
898 #define PHY_CFG2_MREG 0x0008 // 1=Multiple register access (MII mgt)
899 #define PHY_CFG2_INTMDIO 0x0004 // 1=Interrupt signaled with MDIO pulseo
901 // PHY Status Output (and Interrupt status) Register
902 #define PHY_INT_REG 0x12 // Status Output (Interrupt Status)
903 #define PHY_INT_INT 0x8000 // 1=bits have changed since last read
904 #define PHY_INT_LNKFAIL 0x4000 // 1=Link Not detected
905 #define PHY_INT_LOSSSYNC 0x2000 // 1=Descrambler has lost sync
906 #define PHY_INT_CWRD 0x1000 // 1=Invalid 4B5B code detected on rx
907 #define PHY_INT_SSD 0x0800 // 1=No Start Of Stream detected on rx
908 #define PHY_INT_ESD 0x0400 // 1=No End Of Stream detected on rx
909 #define PHY_INT_RPOL 0x0200 // 1=Reverse Polarity detected
910 #define PHY_INT_JAB 0x0100 // 1=Jabber detected
911 #define PHY_INT_SPDDET 0x0080 // 1=100Base-TX mode, 0=10Base-T mode
912 #define PHY_INT_DPLXDET 0x0040 // 1=Device in Full Duplex
914 // PHY Interrupt/Status Mask Register
915 #define PHY_MASK_REG 0x13 // Interrupt Mask
916 // Uses the same bit definitions as PHY_INT_REG
920 * SMC91C96 ethernet config and status registers.
921 * These are in the "attribute" space.
924 #define ECOR_RESET 0x80
925 #define ECOR_LEVEL_IRQ 0x40
926 #define ECOR_WR_ATTRIB 0x04
927 #define ECOR_ENABLE 0x01
930 #define ECSR_IOIS8 0x20
931 #define ECSR_PWRDWN 0x04
932 #define ECSR_INT 0x02
934 #define ATTRIB_SIZE ((64*1024) << SMC_IO_SHIFT)
938 * Macros to abstract register access according to the data bus
939 * capabilities. Please use those and not the in/out primitives.
940 * Note: the following macros do *not* select the bank -- this must
941 * be done separately as needed in the main code. The SMC_REG() macro
942 * only uses the bank argument for debugging purposes (when enabled).
944 * Note: despite inline functions being safer, everything leading to this
945 * should preferably be macros to let BUG() display the line number in
946 * the core source code since we're interested in the top call site
947 * not in any inline function location.
951 #define SMC_REG(reg, bank) \
953 int __b = SMC_CURRENT_BANK(); \
954 if (unlikely((__b & ~0xf0) != (0x3300 | bank))) { \
955 printk( "%s: bank reg screwed (0x%04x)\n", \
962 #define SMC_REG(reg, bank) (reg<<SMC_IO_SHIFT)
966 * Hack Alert: Some setups just can't write 8 or 16 bits reliably when not
967 * aligned to a 32 bit boundary. I tell you that does exist!
968 * Fortunately the affected register accesses can be easily worked around
969 * since we can write zeroes to the preceeding 16 bits without adverse
970 * effects and use a 32-bit access.
972 * Enforce it on any 32-bit capable setup for now.
974 #define SMC_MUST_ALIGN_WRITE SMC_CAN_USE_32BIT
976 #define SMC_GET_PN() \
977 ( SMC_CAN_USE_8BIT ? (SMC_inb(ioaddr, PN_REG)) \
978 : (SMC_inw(ioaddr, PN_REG) & 0xFF) )
980 #define SMC_SET_PN(x) \
982 if (SMC_MUST_ALIGN_WRITE) \
983 SMC_outl((x)<<16, ioaddr, SMC_REG(0, 2)); \
984 else if (SMC_CAN_USE_8BIT) \
985 SMC_outb(x, ioaddr, PN_REG); \
987 SMC_outw(x, ioaddr, PN_REG); \
990 #define SMC_GET_AR() \
991 ( SMC_CAN_USE_8BIT ? (SMC_inb(ioaddr, AR_REG)) \
992 : (SMC_inw(ioaddr, PN_REG) >> 8) )
994 #define SMC_GET_TXFIFO() \
995 ( SMC_CAN_USE_8BIT ? (SMC_inb(ioaddr, TXFIFO_REG)) \
996 : (SMC_inw(ioaddr, TXFIFO_REG) & 0xFF) )
998 #define SMC_GET_RXFIFO() \
999 ( SMC_CAN_USE_8BIT ? (SMC_inb(ioaddr, RXFIFO_REG)) \
1000 : (SMC_inw(ioaddr, TXFIFO_REG) >> 8) )
1002 #define SMC_GET_INT() \
1003 ( SMC_CAN_USE_8BIT ? (SMC_inb(ioaddr, INT_REG)) \
1004 : (SMC_inw(ioaddr, INT_REG) & 0xFF) )
1006 #define SMC_ACK_INT(x) \
1008 if (SMC_CAN_USE_8BIT) \
1009 SMC_outb(x, ioaddr, INT_REG); \
1011 unsigned long __flags; \
1013 local_irq_save(__flags); \
1014 __mask = SMC_inw( ioaddr, INT_REG ) & ~0xff; \
1015 SMC_outw( __mask | (x), ioaddr, INT_REG ); \
1016 local_irq_restore(__flags); \
1020 #define SMC_GET_INT_MASK() \
1021 ( SMC_CAN_USE_8BIT ? (SMC_inb(ioaddr, IM_REG)) \
1022 : (SMC_inw( ioaddr, INT_REG ) >> 8) )
1024 #define SMC_SET_INT_MASK(x) \
1026 if (SMC_CAN_USE_8BIT) \
1027 SMC_outb(x, ioaddr, IM_REG); \
1029 SMC_outw((x) << 8, ioaddr, INT_REG); \
1032 #define SMC_CURRENT_BANK() SMC_inw(ioaddr, BANK_SELECT)
1034 #define SMC_SELECT_BANK(x) \
1036 if (SMC_MUST_ALIGN_WRITE) \
1037 SMC_outl((x)<<16, ioaddr, 12<<SMC_IO_SHIFT); \
1039 SMC_outw(x, ioaddr, BANK_SELECT); \
1042 #define SMC_GET_BASE() SMC_inw(ioaddr, BASE_REG)
1044 #define SMC_SET_BASE(x) SMC_outw(x, ioaddr, BASE_REG)
1046 #define SMC_GET_CONFIG() SMC_inw(ioaddr, CONFIG_REG)
1048 #define SMC_SET_CONFIG(x) SMC_outw(x, ioaddr, CONFIG_REG)
1050 #define SMC_GET_COUNTER() SMC_inw(ioaddr, COUNTER_REG)
1052 #define SMC_GET_CTL() SMC_inw(ioaddr, CTL_REG)
1054 #define SMC_SET_CTL(x) SMC_outw(x, ioaddr, CTL_REG)
1056 #define SMC_GET_MII() SMC_inw(ioaddr, MII_REG)
1058 #define SMC_SET_MII(x) SMC_outw(x, ioaddr, MII_REG)
1060 #define SMC_GET_MIR() SMC_inw(ioaddr, MIR_REG)
1062 #define SMC_SET_MIR(x) SMC_outw(x, ioaddr, MIR_REG)
1064 #define SMC_GET_MMU_CMD() SMC_inw(ioaddr, MMU_CMD_REG)
1066 #define SMC_SET_MMU_CMD(x) SMC_outw(x, ioaddr, MMU_CMD_REG)
1068 #define SMC_GET_FIFO() SMC_inw(ioaddr, FIFO_REG)
1070 #define SMC_GET_PTR() SMC_inw(ioaddr, PTR_REG)
1072 #define SMC_SET_PTR(x) \
1074 if (SMC_MUST_ALIGN_WRITE) \
1075 SMC_outl((x)<<16, ioaddr, SMC_REG(4, 2)); \
1077 SMC_outw(x, ioaddr, PTR_REG); \
1080 #define SMC_GET_EPH_STATUS() SMC_inw(ioaddr, EPH_STATUS_REG)
1082 #define SMC_GET_RCR() SMC_inw(ioaddr, RCR_REG)
1084 #define SMC_SET_RCR(x) SMC_outw(x, ioaddr, RCR_REG)
1086 #define SMC_GET_REV() SMC_inw(ioaddr, REV_REG)
1088 #define SMC_GET_RPC() SMC_inw(ioaddr, RPC_REG)
1090 #define SMC_SET_RPC(x) \
1092 if (SMC_MUST_ALIGN_WRITE) \
1093 SMC_outl((x)<<16, ioaddr, SMC_REG(8, 0)); \
1095 SMC_outw(x, ioaddr, RPC_REG); \
1098 #define SMC_GET_TCR() SMC_inw(ioaddr, TCR_REG)
1100 #define SMC_SET_TCR(x) SMC_outw(x, ioaddr, TCR_REG)
1102 #ifndef SMC_GET_MAC_ADDR
1103 #define SMC_GET_MAC_ADDR(addr) \
1106 __v = SMC_inw( ioaddr, ADDR0_REG ); \
1107 addr[0] = __v; addr[1] = __v >> 8; \
1108 __v = SMC_inw( ioaddr, ADDR1_REG ); \
1109 addr[2] = __v; addr[3] = __v >> 8; \
1110 __v = SMC_inw( ioaddr, ADDR2_REG ); \
1111 addr[4] = __v; addr[5] = __v >> 8; \
1115 #define SMC_SET_MAC_ADDR(addr) \
1117 SMC_outw( addr[0]|(addr[1] << 8), ioaddr, ADDR0_REG ); \
1118 SMC_outw( addr[2]|(addr[3] << 8), ioaddr, ADDR1_REG ); \
1119 SMC_outw( addr[4]|(addr[5] << 8), ioaddr, ADDR2_REG ); \
1122 #define SMC_SET_MCAST(x) \
1124 const unsigned char *mt = (x); \
1125 SMC_outw( mt[0] | (mt[1] << 8), ioaddr, MCAST_REG1 ); \
1126 SMC_outw( mt[2] | (mt[3] << 8), ioaddr, MCAST_REG2 ); \
1127 SMC_outw( mt[4] | (mt[5] << 8), ioaddr, MCAST_REG3 ); \
1128 SMC_outw( mt[6] | (mt[7] << 8), ioaddr, MCAST_REG4 ); \
1131 #define SMC_PUT_PKT_HDR(status, length) \
1133 if (SMC_CAN_USE_32BIT) \
1134 SMC_outl((status) | (length)<<16, ioaddr, DATA_REG); \
1136 SMC_outw(status, ioaddr, DATA_REG); \
1137 SMC_outw(length, ioaddr, DATA_REG); \
1141 #define SMC_GET_PKT_HDR(status, length) \
1143 if (SMC_CAN_USE_32BIT) { \
1144 unsigned int __val = SMC_inl(ioaddr, DATA_REG); \
1145 (status) = __val & 0xffff; \
1146 (length) = __val >> 16; \
1148 (status) = SMC_inw(ioaddr, DATA_REG); \
1149 (length) = SMC_inw(ioaddr, DATA_REG); \
1153 #define SMC_PUSH_DATA(p, l) \
1155 if (SMC_CAN_USE_32BIT) { \
1156 void *__ptr = (p); \
1158 void *__ioaddr = ioaddr; \
1159 if (__len >= 2 && (unsigned long)__ptr & 2) { \
1161 SMC_outw(*(u16 *)__ptr, ioaddr, DATA_REG); \
1164 if (SMC_CAN_USE_DATACS && lp->datacs) \
1165 __ioaddr = lp->datacs; \
1166 SMC_outsl(__ioaddr, DATA_REG, __ptr, __len>>2); \
1168 __ptr += (__len & ~3); \
1169 SMC_outw(*((u16 *)__ptr), ioaddr, DATA_REG); \
1171 } else if (SMC_CAN_USE_16BIT) \
1172 SMC_outsw(ioaddr, DATA_REG, p, (l) >> 1); \
1173 else if (SMC_CAN_USE_8BIT) \
1174 SMC_outsb(ioaddr, DATA_REG, p, l); \
1177 #define SMC_PULL_DATA(p, l) \
1179 if (SMC_CAN_USE_32BIT) { \
1180 void *__ptr = (p); \
1182 void *__ioaddr = ioaddr; \
1183 if ((unsigned long)__ptr & 2) { \
1185 * We want 32bit alignment here. \
1186 * Since some buses perform a full \
1187 * 32bit fetch even for 16bit data \
1188 * we can't use SMC_inw() here. \
1189 * Back both source (on-chip) and \
1190 * destination pointers of 2 bytes. \
1191 * This is possible since the call to \
1192 * SMC_GET_PKT_HDR() already advanced \
1193 * the source pointer of 4 bytes, and \
1194 * the skb_reserve(skb, 2) advanced \
1195 * the destination pointer of 2 bytes. \
1199 SMC_SET_PTR(2|PTR_READ|PTR_RCV|PTR_AUTOINC); \
1201 if (SMC_CAN_USE_DATACS && lp->datacs) \
1202 __ioaddr = lp->datacs; \
1204 SMC_insl(__ioaddr, DATA_REG, __ptr, __len>>2); \
1205 } else if (SMC_CAN_USE_16BIT) \
1206 SMC_insw(ioaddr, DATA_REG, p, (l) >> 1); \
1207 else if (SMC_CAN_USE_8BIT) \
1208 SMC_insb(ioaddr, DATA_REG, p, l); \
1211 #endif /* _SMC91X_H_ */