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 set_irq_type(irq, type)
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 set_irq_type(irq, type) do {} while (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_ARCH_INNOKOM) || \
133 defined(CONFIG_MACH_MAINSTONE) || \
134 defined(CONFIG_ARCH_PXA_IDP) || \
135 defined(CONFIG_ARCH_RAMSES)
137 #define SMC_CAN_USE_8BIT 1
138 #define SMC_CAN_USE_16BIT 1
139 #define SMC_CAN_USE_32BIT 1
140 #define SMC_IO_SHIFT 0
142 #define SMC_USE_PXA_DMA 1
144 #define SMC_inb(a, r) readb((a) + (r))
145 #define SMC_inw(a, r) readw((a) + (r))
146 #define SMC_inl(a, r) readl((a) + (r))
147 #define SMC_outb(v, a, r) writeb(v, (a) + (r))
148 #define SMC_outl(v, a, r) writel(v, (a) + (r))
149 #define SMC_insl(a, r, p, l) readsl((a) + (r), p, l)
150 #define SMC_outsl(a, r, p, l) writesl((a) + (r), p, l)
152 /* We actually can't write halfwords properly if not word aligned */
154 SMC_outw(u16 val, void __iomem *ioaddr, int reg)
157 unsigned int v = val << 16;
158 v |= readl(ioaddr + (reg & ~2)) & 0xffff;
159 writel(v, ioaddr + (reg & ~2));
161 writew(val, ioaddr + reg);
165 #elif defined(CONFIG_ARCH_OMAP)
167 /* We can only do 16-bit reads and writes in the static memory space. */
168 #define SMC_CAN_USE_8BIT 0
169 #define SMC_CAN_USE_16BIT 1
170 #define SMC_CAN_USE_32BIT 0
171 #define SMC_IO_SHIFT 0
174 #define SMC_inb(a, r) readb((a) + (r))
175 #define SMC_outb(v, a, r) writeb(v, (a) + (r))
176 #define SMC_inw(a, r) readw((a) + (r))
177 #define SMC_outw(v, a, r) writew(v, (a) + (r))
178 #define SMC_insw(a, r, p, l) readsw((a) + (r), p, l)
179 #define SMC_outsw(a, r, p, l) writesw((a) + (r), p, l)
180 #define SMC_inl(a, r) readl((a) + (r))
181 #define SMC_outl(v, a, r) writel(v, (a) + (r))
182 #define SMC_insl(a, r, p, l) readsl((a) + (r), p, l)
183 #define SMC_outsl(a, r, p, l) writesl((a) + (r), p, l)
185 #include <asm/mach-types.h>
186 #include <asm/arch/cpu.h>
188 #define SMC_IRQ_TRIGGER_TYPE (( \
189 machine_is_omap_h2() \
190 || machine_is_omap_h3() \
191 || (machine_is_omap_innovator() && !cpu_is_omap1510()) \
192 ) ? IRQT_FALLING : IRQT_RISING)
195 #elif defined(CONFIG_SH_SH4202_MICRODEV)
197 #define SMC_CAN_USE_8BIT 0
198 #define SMC_CAN_USE_16BIT 1
199 #define SMC_CAN_USE_32BIT 0
201 #define SMC_inb(a, r) inb((a) + (r) - 0xa0000000)
202 #define SMC_inw(a, r) inw((a) + (r) - 0xa0000000)
203 #define SMC_inl(a, r) inl((a) + (r) - 0xa0000000)
204 #define SMC_outb(v, a, r) outb(v, (a) + (r) - 0xa0000000)
205 #define SMC_outw(v, a, r) outw(v, (a) + (r) - 0xa0000000)
206 #define SMC_outl(v, a, r) outl(v, (a) + (r) - 0xa0000000)
207 #define SMC_insl(a, r, p, l) insl((a) + (r) - 0xa0000000, p, l)
208 #define SMC_outsl(a, r, p, l) outsl((a) + (r) - 0xa0000000, p, l)
209 #define SMC_insw(a, r, p, l) insw((a) + (r) - 0xa0000000, p, l)
210 #define SMC_outsw(a, r, p, l) outsw((a) + (r) - 0xa0000000, p, l)
212 #define set_irq_type(irq, type) do {} while(0)
214 #elif defined(CONFIG_ISA)
216 #define SMC_CAN_USE_8BIT 1
217 #define SMC_CAN_USE_16BIT 1
218 #define SMC_CAN_USE_32BIT 0
220 #define SMC_inb(a, r) inb((a) + (r))
221 #define SMC_inw(a, r) inw((a) + (r))
222 #define SMC_outb(v, a, r) outb(v, (a) + (r))
223 #define SMC_outw(v, a, r) outw(v, (a) + (r))
224 #define SMC_insw(a, r, p, l) insw((a) + (r), p, l)
225 #define SMC_outsw(a, r, p, l) outsw((a) + (r), p, l)
227 #elif defined(CONFIG_M32R)
229 #define SMC_CAN_USE_8BIT 0
230 #define SMC_CAN_USE_16BIT 1
231 #define SMC_CAN_USE_32BIT 0
233 #define SMC_inb(a, r) inb((u32)a) + (r))
234 #define SMC_inw(a, r) inw(((u32)a) + (r))
235 #define SMC_outb(v, a, r) outb(v, ((u32)a) + (r))
236 #define SMC_outw(v, a, r) outw(v, ((u32)a) + (r))
237 #define SMC_insw(a, r, p, l) insw(((u32)a) + (r), p, l)
238 #define SMC_outsw(a, r, p, l) outsw(((u32)a) + (r), p, l)
240 #define set_irq_type(irq, type) do {} while(0)
242 #define RPC_LSA_DEFAULT RPC_LED_TX_RX
243 #define RPC_LSB_DEFAULT RPC_LED_100_10
245 #elif defined(CONFIG_MACH_LPD7A400) || defined(CONFIG_MACH_LPD7A404)
247 /* The LPD7A40X_IOBARRIER is necessary to overcome a mismatch between
248 * the way that the CPU handles chip selects and the way that the SMC
249 * chip expects the chip select to operate. Refer to
250 * Documentation/arm/Sharp-LH/IOBarrier for details. The read from
251 * IOBARRIER is a byte as a least-common denominator of possible
252 * regions to use as the barrier. It would be wasteful to read 32
253 * bits from a byte oriented region.
255 * There is no explicit protection against interrupts intervening
256 * between the writew and the IOBARRIER. In SMC ISR there is a
257 * preamble that performs an IOBARRIER in the extremely unlikely event
258 * that the driver interrupts itself between a writew to the chip an
259 * the IOBARRIER that follows *and* the cache is large enough that the
260 * first off-chip access while handing the interrupt is to the SMC
261 * chip. Other devices in the same address space as the SMC chip must
262 * be aware of the potential for trouble and perform a similar
263 * IOBARRIER on entry to their ISR.
266 #include <asm/arch/constants.h> /* IOBARRIER_VIRT */
268 #define SMC_CAN_USE_8BIT 0
269 #define SMC_CAN_USE_16BIT 1
270 #define SMC_CAN_USE_32BIT 0
272 #define LPD7A40X_IOBARRIER readb (IOBARRIER_VIRT)
274 #define SMC_inw(a,r) readw ((void*) ((a) + (r)))
275 #define SMC_insw(a,r,p,l) readsw ((void*) ((a) + (r)), p, l)
276 #define SMC_outw(v,a,r) ({ writew ((v), (a) + (r)); LPD7A40X_IOBARRIER; })
278 static inline void SMC_outsw (unsigned long a, int r, unsigned char* p, int l)
280 unsigned short* ps = (unsigned short*) p;
282 writew (*ps++, a + r);
287 #define SMC_INTERRUPT_PREAMBLE LPD7A40X_IOBARRIER
289 #define RPC_LSA_DEFAULT RPC_LED_TX_RX
290 #define RPC_LSB_DEFAULT RPC_LED_100_10
292 #elif defined(CONFIG_SOC_AU1X00)
296 /* We can only do 16-bit reads and writes in the static memory space. */
297 #define SMC_CAN_USE_8BIT 0
298 #define SMC_CAN_USE_16BIT 1
299 #define SMC_CAN_USE_32BIT 0
300 #define SMC_IO_SHIFT 0
303 #define SMC_inw(a, r) au_readw((unsigned long)((a) + (r)))
304 #define SMC_insw(a, r, p, l) \
306 unsigned long _a = (unsigned long)((a) + (r)); \
308 u16 *_p = (u16 *)(p); \
310 *_p++ = au_readw(_a); \
312 #define SMC_outw(v, a, r) au_writew(v, (unsigned long)((a) + (r)))
313 #define SMC_outsw(a, r, p, l) \
315 unsigned long _a = (unsigned long)((a) + (r)); \
317 const u16 *_p = (const u16 *)(p); \
319 au_writew(*_p++ , _a); \
322 #define set_irq_type(irq, type) do {} while (0)
326 #define SMC_CAN_USE_8BIT 1
327 #define SMC_CAN_USE_16BIT 1
328 #define SMC_CAN_USE_32BIT 1
331 #define SMC_inb(a, r) readb((a) + (r))
332 #define SMC_inw(a, r) readw((a) + (r))
333 #define SMC_inl(a, r) readl((a) + (r))
334 #define SMC_outb(v, a, r) writeb(v, (a) + (r))
335 #define SMC_outw(v, a, r) writew(v, (a) + (r))
336 #define SMC_outl(v, a, r) writel(v, (a) + (r))
337 #define SMC_insl(a, r, p, l) readsl((a) + (r), p, l)
338 #define SMC_outsl(a, r, p, l) writesl((a) + (r), p, l)
340 #define RPC_LSA_DEFAULT RPC_LED_100_10
341 #define RPC_LSB_DEFAULT RPC_LED_TX_RX
345 #ifndef SMC_IRQ_TRIGGER_TYPE
346 #define SMC_IRQ_TRIGGER_TYPE IRQT_RISING
349 #ifdef SMC_USE_PXA_DMA
351 * Let's use the DMA engine on the XScale PXA2xx for RX packets. This is
352 * always happening in irq context so no need to worry about races. TX is
353 * different and probably not worth it for that reason, and not as critical
354 * as RX which can overrun memory and lose packets.
356 #include <linux/dma-mapping.h>
358 #include <asm/arch/pxa-regs.h>
362 #define SMC_insl(a, r, p, l) \
363 smc_pxa_dma_insl(a, lp->physaddr, r, dev->dma, p, l)
365 smc_pxa_dma_insl(void __iomem *ioaddr, u_long physaddr, int reg, int dma,
366 u_char *buf, int len)
370 /* fallback if no DMA available */
371 if (dma == (unsigned char)-1) {
372 readsl(ioaddr + reg, buf, len);
376 /* 64 bit alignment is required for memory to memory DMA */
378 *((u32 *)buf) = SMC_inl(ioaddr, reg);
384 dmabuf = dma_map_single(NULL, buf, len, DMA_FROM_DEVICE);
385 DCSR(dma) = DCSR_NODESC;
387 DSADR(dma) = physaddr + reg;
388 DCMD(dma) = (DCMD_INCTRGADDR | DCMD_BURST32 |
389 DCMD_WIDTH4 | (DCMD_LENGTH & len));
390 DCSR(dma) = DCSR_NODESC | DCSR_RUN;
391 while (!(DCSR(dma) & DCSR_STOPSTATE))
394 dma_unmap_single(NULL, dmabuf, len, DMA_FROM_DEVICE);
400 #define SMC_insw(a, r, p, l) \
401 smc_pxa_dma_insw(a, lp->physaddr, r, dev->dma, p, l)
403 smc_pxa_dma_insw(void __iomem *ioaddr, u_long physaddr, int reg, int dma,
404 u_char *buf, int len)
408 /* fallback if no DMA available */
409 if (dma == (unsigned char)-1) {
410 readsw(ioaddr + reg, buf, len);
414 /* 64 bit alignment is required for memory to memory DMA */
415 while ((long)buf & 6) {
416 *((u16 *)buf) = SMC_inw(ioaddr, reg);
422 dmabuf = dma_map_single(NULL, buf, len, DMA_FROM_DEVICE);
423 DCSR(dma) = DCSR_NODESC;
425 DSADR(dma) = physaddr + reg;
426 DCMD(dma) = (DCMD_INCTRGADDR | DCMD_BURST32 |
427 DCMD_WIDTH2 | (DCMD_LENGTH & len));
428 DCSR(dma) = DCSR_NODESC | DCSR_RUN;
429 while (!(DCSR(dma) & DCSR_STOPSTATE))
432 dma_unmap_single(NULL, dmabuf, len, DMA_FROM_DEVICE);
437 smc_pxa_dma_irq(int dma, void *dummy, struct pt_regs *regs)
441 #endif /* SMC_USE_PXA_DMA */
444 /* Because of bank switching, the LAN91x uses only 16 I/O ports */
446 #define SMC_IO_SHIFT 0
448 #define SMC_IO_EXTENT (16 << SMC_IO_SHIFT)
449 #define SMC_DATA_EXTENT (4)
452 . Bank Select Register:
454 . yyyy yyyy 0000 00xx
456 . yyyy yyyy = 0x33, for identification purposes.
458 #define BANK_SELECT (14 << SMC_IO_SHIFT)
461 // Transmit Control Register
463 #define TCR_REG SMC_REG(0x0000, 0)
464 #define TCR_ENABLE 0x0001 // When 1 we can transmit
465 #define TCR_LOOP 0x0002 // Controls output pin LBK
466 #define TCR_FORCOL 0x0004 // When 1 will force a collision
467 #define TCR_PAD_EN 0x0080 // When 1 will pad tx frames < 64 bytes w/0
468 #define TCR_NOCRC 0x0100 // When 1 will not append CRC to tx frames
469 #define TCR_MON_CSN 0x0400 // When 1 tx monitors carrier
470 #define TCR_FDUPLX 0x0800 // When 1 enables full duplex operation
471 #define TCR_STP_SQET 0x1000 // When 1 stops tx if Signal Quality Error
472 #define TCR_EPH_LOOP 0x2000 // When 1 enables EPH block loopback
473 #define TCR_SWFDUP 0x8000 // When 1 enables Switched Full Duplex mode
475 #define TCR_CLEAR 0 /* do NOTHING */
476 /* the default settings for the TCR register : */
477 #define TCR_DEFAULT (TCR_ENABLE | TCR_PAD_EN)
480 // EPH Status Register
482 #define EPH_STATUS_REG SMC_REG(0x0002, 0)
483 #define ES_TX_SUC 0x0001 // Last TX was successful
484 #define ES_SNGL_COL 0x0002 // Single collision detected for last tx
485 #define ES_MUL_COL 0x0004 // Multiple collisions detected for last tx
486 #define ES_LTX_MULT 0x0008 // Last tx was a multicast
487 #define ES_16COL 0x0010 // 16 Collisions Reached
488 #define ES_SQET 0x0020 // Signal Quality Error Test
489 #define ES_LTXBRD 0x0040 // Last tx was a broadcast
490 #define ES_TXDEFR 0x0080 // Transmit Deferred
491 #define ES_LATCOL 0x0200 // Late collision detected on last tx
492 #define ES_LOSTCARR 0x0400 // Lost Carrier Sense
493 #define ES_EXC_DEF 0x0800 // Excessive Deferral
494 #define ES_CTR_ROL 0x1000 // Counter Roll Over indication
495 #define ES_LINK_OK 0x4000 // Driven by inverted value of nLNK pin
496 #define ES_TXUNRN 0x8000 // Tx Underrun
499 // Receive Control Register
501 #define RCR_REG SMC_REG(0x0004, 0)
502 #define RCR_RX_ABORT 0x0001 // Set if a rx frame was aborted
503 #define RCR_PRMS 0x0002 // Enable promiscuous mode
504 #define RCR_ALMUL 0x0004 // When set accepts all multicast frames
505 #define RCR_RXEN 0x0100 // IFF this is set, we can receive packets
506 #define RCR_STRIP_CRC 0x0200 // When set strips CRC from rx packets
507 #define RCR_ABORT_ENB 0x0200 // When set will abort rx on collision
508 #define RCR_FILT_CAR 0x0400 // When set filters leading 12 bit s of carrier
509 #define RCR_SOFTRST 0x8000 // resets the chip
511 /* the normal settings for the RCR register : */
512 #define RCR_DEFAULT (RCR_STRIP_CRC | RCR_RXEN)
513 #define RCR_CLEAR 0x0 // set it to a base state
518 #define COUNTER_REG SMC_REG(0x0006, 0)
521 // Memory Information Register
523 #define MIR_REG SMC_REG(0x0008, 0)
526 // Receive/Phy Control Register
528 #define RPC_REG SMC_REG(0x000A, 0)
529 #define RPC_SPEED 0x2000 // When 1 PHY is in 100Mbps mode.
530 #define RPC_DPLX 0x1000 // When 1 PHY is in Full-Duplex Mode
531 #define RPC_ANEG 0x0800 // When 1 PHY is in Auto-Negotiate Mode
532 #define RPC_LSXA_SHFT 5 // Bits to shift LS2A,LS1A,LS0A to lsb
533 #define RPC_LSXB_SHFT 2 // Bits to get LS2B,LS1B,LS0B to lsb
534 #define RPC_LED_100_10 (0x00) // LED = 100Mbps OR's with 10Mbps link detect
535 #define RPC_LED_RES (0x01) // LED = Reserved
536 #define RPC_LED_10 (0x02) // LED = 10Mbps link detect
537 #define RPC_LED_FD (0x03) // LED = Full Duplex Mode
538 #define RPC_LED_TX_RX (0x04) // LED = TX or RX packet occurred
539 #define RPC_LED_100 (0x05) // LED = 100Mbps link dectect
540 #define RPC_LED_TX (0x06) // LED = TX packet occurred
541 #define RPC_LED_RX (0x07) // LED = RX packet occurred
543 #ifndef RPC_LSA_DEFAULT
544 #define RPC_LSA_DEFAULT RPC_LED_100
546 #ifndef RPC_LSB_DEFAULT
547 #define RPC_LSB_DEFAULT RPC_LED_FD
550 #define RPC_DEFAULT (RPC_ANEG | (RPC_LSA_DEFAULT << RPC_LSXA_SHFT) | (RPC_LSB_DEFAULT << RPC_LSXB_SHFT) | RPC_SPEED | RPC_DPLX)
553 /* Bank 0 0x0C is reserved */
555 // Bank Select Register
557 #define BSR_REG 0x000E
562 #define CONFIG_REG SMC_REG(0x0000, 1)
563 #define CONFIG_EXT_PHY 0x0200 // 1=external MII, 0=internal Phy
564 #define CONFIG_GPCNTRL 0x0400 // Inverse value drives pin nCNTRL
565 #define CONFIG_NO_WAIT 0x1000 // When 1 no extra wait states on ISA bus
566 #define CONFIG_EPH_POWER_EN 0x8000 // When 0 EPH is placed into low power mode.
568 // Default is powered-up, Internal Phy, Wait States, and pin nCNTRL=low
569 #define CONFIG_DEFAULT (CONFIG_EPH_POWER_EN)
572 // Base Address Register
574 #define BASE_REG SMC_REG(0x0002, 1)
577 // Individual Address Registers
579 #define ADDR0_REG SMC_REG(0x0004, 1)
580 #define ADDR1_REG SMC_REG(0x0006, 1)
581 #define ADDR2_REG SMC_REG(0x0008, 1)
584 // General Purpose Register
586 #define GP_REG SMC_REG(0x000A, 1)
591 #define CTL_REG SMC_REG(0x000C, 1)
592 #define CTL_RCV_BAD 0x4000 // When 1 bad CRC packets are received
593 #define CTL_AUTO_RELEASE 0x0800 // When 1 tx pages are released automatically
594 #define CTL_LE_ENABLE 0x0080 // When 1 enables Link Error interrupt
595 #define CTL_CR_ENABLE 0x0040 // When 1 enables Counter Rollover interrupt
596 #define CTL_TE_ENABLE 0x0020 // When 1 enables Transmit Error interrupt
597 #define CTL_EEPROM_SELECT 0x0004 // Controls EEPROM reload & store
598 #define CTL_RELOAD 0x0002 // When set reads EEPROM into registers
599 #define CTL_STORE 0x0001 // When set stores registers into EEPROM
602 // MMU Command Register
604 #define MMU_CMD_REG SMC_REG(0x0000, 2)
605 #define MC_BUSY 1 // When 1 the last release has not completed
606 #define MC_NOP (0<<5) // No Op
607 #define MC_ALLOC (1<<5) // OR with number of 256 byte packets
608 #define MC_RESET (2<<5) // Reset MMU to initial state
609 #define MC_REMOVE (3<<5) // Remove the current rx packet
610 #define MC_RELEASE (4<<5) // Remove and release the current rx packet
611 #define MC_FREEPKT (5<<5) // Release packet in PNR register
612 #define MC_ENQUEUE (6<<5) // Enqueue the packet for transmit
613 #define MC_RSTTXFIFO (7<<5) // Reset the TX FIFOs
616 // Packet Number Register
618 #define PN_REG SMC_REG(0x0002, 2)
621 // Allocation Result Register
623 #define AR_REG SMC_REG(0x0003, 2)
624 #define AR_FAILED 0x80 // Alocation Failed
627 // TX FIFO Ports Register
629 #define TXFIFO_REG SMC_REG(0x0004, 2)
630 #define TXFIFO_TEMPTY 0x80 // TX FIFO Empty
632 // RX FIFO Ports Register
634 #define RXFIFO_REG SMC_REG(0x0005, 2)
635 #define RXFIFO_REMPTY 0x80 // RX FIFO Empty
637 #define FIFO_REG SMC_REG(0x0004, 2)
641 #define PTR_REG SMC_REG(0x0006, 2)
642 #define PTR_RCV 0x8000 // 1=Receive area, 0=Transmit area
643 #define PTR_AUTOINC 0x4000 // Auto increment the pointer on each access
644 #define PTR_READ 0x2000 // When 1 the operation is a read
649 #define DATA_REG SMC_REG(0x0008, 2)
652 // Interrupt Status/Acknowledge Register
654 #define INT_REG SMC_REG(0x000C, 2)
657 // Interrupt Mask Register
659 #define IM_REG SMC_REG(0x000D, 2)
660 #define IM_MDINT 0x80 // PHY MI Register 18 Interrupt
661 #define IM_ERCV_INT 0x40 // Early Receive Interrupt
662 #define IM_EPH_INT 0x20 // Set by Ethernet Protocol Handler section
663 #define IM_RX_OVRN_INT 0x10 // Set by Receiver Overruns
664 #define IM_ALLOC_INT 0x08 // Set when allocation request is completed
665 #define IM_TX_EMPTY_INT 0x04 // Set if the TX FIFO goes empty
666 #define IM_TX_INT 0x02 // Transmit Interrupt
667 #define IM_RCV_INT 0x01 // Receive Interrupt
670 // Multicast Table Registers
672 #define MCAST_REG1 SMC_REG(0x0000, 3)
673 #define MCAST_REG2 SMC_REG(0x0002, 3)
674 #define MCAST_REG3 SMC_REG(0x0004, 3)
675 #define MCAST_REG4 SMC_REG(0x0006, 3)
678 // Management Interface Register (MII)
680 #define MII_REG SMC_REG(0x0008, 3)
681 #define MII_MSK_CRS100 0x4000 // Disables CRS100 detection during tx half dup
682 #define MII_MDOE 0x0008 // MII Output Enable
683 #define MII_MCLK 0x0004 // MII Clock, pin MDCLK
684 #define MII_MDI 0x0002 // MII Input, pin MDI
685 #define MII_MDO 0x0001 // MII Output, pin MDO
690 /* ( hi: chip id low: rev # ) */
691 #define REV_REG SMC_REG(0x000A, 3)
694 // Early RCV Register
696 /* this is NOT on SMC9192 */
697 #define ERCV_REG SMC_REG(0x000C, 3)
698 #define ERCV_RCV_DISCRD 0x0080 // When 1 discards a packet being received
699 #define ERCV_THRESHOLD 0x001F // ERCV Threshold Mask
704 #define EXT_REG SMC_REG(0x0000, 7)
712 #define CHIP_91100FD 8
713 #define CHIP_91111FD 9
715 static const char * chip_ids[ 16 ] = {
717 /* 3 */ "SMC91C90/91C92",
722 /* 8 */ "SMC91C100FD",
723 /* 9 */ "SMC91C11xFD",
729 . Receive status bits
731 #define RS_ALGNERR 0x8000
732 #define RS_BRODCAST 0x4000
733 #define RS_BADCRC 0x2000
734 #define RS_ODDFRAME 0x1000
735 #define RS_TOOLONG 0x0800
736 #define RS_TOOSHORT 0x0400
737 #define RS_MULTICAST 0x0001
738 #define RS_ERRORS (RS_ALGNERR | RS_BADCRC | RS_TOOLONG | RS_TOOSHORT)
743 * LAN83C183 == LAN91C111 Internal PHY
745 #define PHY_LAN83C183 0x0016f840
746 #define PHY_LAN83C180 0x02821c50
749 * PHY Register Addresses (LAN91C111 Internal PHY)
751 * Generic PHY registers can be found in <linux/mii.h>
753 * These phy registers are specific to our on-board phy.
756 // PHY Configuration Register 1
757 #define PHY_CFG1_REG 0x10
758 #define PHY_CFG1_LNKDIS 0x8000 // 1=Rx Link Detect Function disabled
759 #define PHY_CFG1_XMTDIS 0x4000 // 1=TP Transmitter Disabled
760 #define PHY_CFG1_XMTPDN 0x2000 // 1=TP Transmitter Powered Down
761 #define PHY_CFG1_BYPSCR 0x0400 // 1=Bypass scrambler/descrambler
762 #define PHY_CFG1_UNSCDS 0x0200 // 1=Unscramble Idle Reception Disable
763 #define PHY_CFG1_EQLZR 0x0100 // 1=Rx Equalizer Disabled
764 #define PHY_CFG1_CABLE 0x0080 // 1=STP(150ohm), 0=UTP(100ohm)
765 #define PHY_CFG1_RLVL0 0x0040 // 1=Rx Squelch level reduced by 4.5db
766 #define PHY_CFG1_TLVL_SHIFT 2 // Transmit Output Level Adjust
767 #define PHY_CFG1_TLVL_MASK 0x003C
768 #define PHY_CFG1_TRF_MASK 0x0003 // Transmitter Rise/Fall time
771 // PHY Configuration Register 2
772 #define PHY_CFG2_REG 0x11
773 #define PHY_CFG2_APOLDIS 0x0020 // 1=Auto Polarity Correction disabled
774 #define PHY_CFG2_JABDIS 0x0010 // 1=Jabber disabled
775 #define PHY_CFG2_MREG 0x0008 // 1=Multiple register access (MII mgt)
776 #define PHY_CFG2_INTMDIO 0x0004 // 1=Interrupt signaled with MDIO pulseo
778 // PHY Status Output (and Interrupt status) Register
779 #define PHY_INT_REG 0x12 // Status Output (Interrupt Status)
780 #define PHY_INT_INT 0x8000 // 1=bits have changed since last read
781 #define PHY_INT_LNKFAIL 0x4000 // 1=Link Not detected
782 #define PHY_INT_LOSSSYNC 0x2000 // 1=Descrambler has lost sync
783 #define PHY_INT_CWRD 0x1000 // 1=Invalid 4B5B code detected on rx
784 #define PHY_INT_SSD 0x0800 // 1=No Start Of Stream detected on rx
785 #define PHY_INT_ESD 0x0400 // 1=No End Of Stream detected on rx
786 #define PHY_INT_RPOL 0x0200 // 1=Reverse Polarity detected
787 #define PHY_INT_JAB 0x0100 // 1=Jabber detected
788 #define PHY_INT_SPDDET 0x0080 // 1=100Base-TX mode, 0=10Base-T mode
789 #define PHY_INT_DPLXDET 0x0040 // 1=Device in Full Duplex
791 // PHY Interrupt/Status Mask Register
792 #define PHY_MASK_REG 0x13 // Interrupt Mask
793 // Uses the same bit definitions as PHY_INT_REG
797 * SMC91C96 ethernet config and status registers.
798 * These are in the "attribute" space.
801 #define ECOR_RESET 0x80
802 #define ECOR_LEVEL_IRQ 0x40
803 #define ECOR_WR_ATTRIB 0x04
804 #define ECOR_ENABLE 0x01
807 #define ECSR_IOIS8 0x20
808 #define ECSR_PWRDWN 0x04
809 #define ECSR_INT 0x02
811 #define ATTRIB_SIZE ((64*1024) << SMC_IO_SHIFT)
815 * Macros to abstract register access according to the data bus
816 * capabilities. Please use those and not the in/out primitives.
817 * Note: the following macros do *not* select the bank -- this must
818 * be done separately as needed in the main code. The SMC_REG() macro
819 * only uses the bank argument for debugging purposes (when enabled).
823 #define SMC_REG(reg, bank) \
825 int __b = SMC_CURRENT_BANK(); \
826 if (unlikely((__b & ~0xf0) != (0x3300 | bank))) { \
827 printk( "%s: bank reg screwed (0x%04x)\n", \
834 #define SMC_REG(reg, bank) (reg<<SMC_IO_SHIFT)
838 #define SMC_GET_PN() SMC_inb( ioaddr, PN_REG )
839 #define SMC_SET_PN(x) SMC_outb( x, ioaddr, PN_REG )
840 #define SMC_GET_AR() SMC_inb( ioaddr, AR_REG )
841 #define SMC_GET_TXFIFO() SMC_inb( ioaddr, TXFIFO_REG )
842 #define SMC_GET_RXFIFO() SMC_inb( ioaddr, RXFIFO_REG )
843 #define SMC_GET_INT() SMC_inb( ioaddr, INT_REG )
844 #define SMC_ACK_INT(x) SMC_outb( x, ioaddr, INT_REG )
845 #define SMC_GET_INT_MASK() SMC_inb( ioaddr, IM_REG )
846 #define SMC_SET_INT_MASK(x) SMC_outb( x, ioaddr, IM_REG )
848 #define SMC_GET_PN() (SMC_inw( ioaddr, PN_REG ) & 0xFF)
849 #define SMC_SET_PN(x) SMC_outw( x, ioaddr, PN_REG )
850 #define SMC_GET_AR() (SMC_inw( ioaddr, PN_REG ) >> 8)
851 #define SMC_GET_TXFIFO() (SMC_inw( ioaddr, TXFIFO_REG ) & 0xFF)
852 #define SMC_GET_RXFIFO() (SMC_inw( ioaddr, TXFIFO_REG ) >> 8)
853 #define SMC_GET_INT() (SMC_inw( ioaddr, INT_REG ) & 0xFF)
854 #define SMC_ACK_INT(x) \
856 unsigned long __flags; \
858 local_irq_save(__flags); \
859 __mask = SMC_inw( ioaddr, INT_REG ) & ~0xff; \
860 SMC_outw( __mask | (x), ioaddr, INT_REG ); \
861 local_irq_restore(__flags); \
863 #define SMC_GET_INT_MASK() (SMC_inw( ioaddr, INT_REG ) >> 8)
864 #define SMC_SET_INT_MASK(x) SMC_outw( (x) << 8, ioaddr, INT_REG )
867 #define SMC_CURRENT_BANK() SMC_inw( ioaddr, BANK_SELECT )
868 #define SMC_SELECT_BANK(x) SMC_outw( x, ioaddr, BANK_SELECT )
869 #define SMC_GET_BASE() SMC_inw( ioaddr, BASE_REG )
870 #define SMC_SET_BASE(x) SMC_outw( x, ioaddr, BASE_REG )
871 #define SMC_GET_CONFIG() SMC_inw( ioaddr, CONFIG_REG )
872 #define SMC_SET_CONFIG(x) SMC_outw( x, ioaddr, CONFIG_REG )
873 #define SMC_GET_COUNTER() SMC_inw( ioaddr, COUNTER_REG )
874 #define SMC_GET_CTL() SMC_inw( ioaddr, CTL_REG )
875 #define SMC_SET_CTL(x) SMC_outw( x, ioaddr, CTL_REG )
876 #define SMC_GET_MII() SMC_inw( ioaddr, MII_REG )
877 #define SMC_SET_MII(x) SMC_outw( x, ioaddr, MII_REG )
878 #define SMC_GET_MIR() SMC_inw( ioaddr, MIR_REG )
879 #define SMC_SET_MIR(x) SMC_outw( x, ioaddr, MIR_REG )
880 #define SMC_GET_MMU_CMD() SMC_inw( ioaddr, MMU_CMD_REG )
881 #define SMC_SET_MMU_CMD(x) SMC_outw( x, ioaddr, MMU_CMD_REG )
882 #define SMC_GET_FIFO() SMC_inw( ioaddr, FIFO_REG )
883 #define SMC_GET_PTR() SMC_inw( ioaddr, PTR_REG )
884 #define SMC_SET_PTR(x) SMC_outw( x, ioaddr, PTR_REG )
885 #define SMC_GET_EPH_STATUS() SMC_inw( ioaddr, EPH_STATUS_REG )
886 #define SMC_GET_RCR() SMC_inw( ioaddr, RCR_REG )
887 #define SMC_SET_RCR(x) SMC_outw( x, ioaddr, RCR_REG )
888 #define SMC_GET_REV() SMC_inw( ioaddr, REV_REG )
889 #define SMC_GET_RPC() SMC_inw( ioaddr, RPC_REG )
890 #define SMC_SET_RPC(x) SMC_outw( x, ioaddr, RPC_REG )
891 #define SMC_GET_TCR() SMC_inw( ioaddr, TCR_REG )
892 #define SMC_SET_TCR(x) SMC_outw( x, ioaddr, TCR_REG )
894 #ifndef SMC_GET_MAC_ADDR
895 #define SMC_GET_MAC_ADDR(addr) \
898 __v = SMC_inw( ioaddr, ADDR0_REG ); \
899 addr[0] = __v; addr[1] = __v >> 8; \
900 __v = SMC_inw( ioaddr, ADDR1_REG ); \
901 addr[2] = __v; addr[3] = __v >> 8; \
902 __v = SMC_inw( ioaddr, ADDR2_REG ); \
903 addr[4] = __v; addr[5] = __v >> 8; \
907 #define SMC_SET_MAC_ADDR(addr) \
909 SMC_outw( addr[0]|(addr[1] << 8), ioaddr, ADDR0_REG ); \
910 SMC_outw( addr[2]|(addr[3] << 8), ioaddr, ADDR1_REG ); \
911 SMC_outw( addr[4]|(addr[5] << 8), ioaddr, ADDR2_REG ); \
914 #define SMC_SET_MCAST(x) \
916 const unsigned char *mt = (x); \
917 SMC_outw( mt[0] | (mt[1] << 8), ioaddr, MCAST_REG1 ); \
918 SMC_outw( mt[2] | (mt[3] << 8), ioaddr, MCAST_REG2 ); \
919 SMC_outw( mt[4] | (mt[5] << 8), ioaddr, MCAST_REG3 ); \
920 SMC_outw( mt[6] | (mt[7] << 8), ioaddr, MCAST_REG4 ); \
923 #if SMC_CAN_USE_32BIT
925 * Some setups just can't write 8 or 16 bits reliably when not aligned
926 * to a 32 bit boundary. I tell you that exists!
927 * We re-do the ones here that can be easily worked around if they can have
928 * their low parts written to 0 without adverse effects.
930 #undef SMC_SELECT_BANK
931 #define SMC_SELECT_BANK(x) SMC_outl( (x)<<16, ioaddr, 12<<SMC_IO_SHIFT )
933 #define SMC_SET_RPC(x) SMC_outl( (x)<<16, ioaddr, SMC_REG(8, 0) )
935 #define SMC_SET_PN(x) SMC_outl( (x)<<16, ioaddr, SMC_REG(0, 2) )
937 #define SMC_SET_PTR(x) SMC_outl( (x)<<16, ioaddr, SMC_REG(4, 2) )
940 #if SMC_CAN_USE_32BIT
941 #define SMC_PUT_PKT_HDR(status, length) \
942 SMC_outl( (status) | (length) << 16, ioaddr, DATA_REG )
943 #define SMC_GET_PKT_HDR(status, length) \
945 unsigned int __val = SMC_inl( ioaddr, DATA_REG ); \
946 (status) = __val & 0xffff; \
947 (length) = __val >> 16; \
950 #define SMC_PUT_PKT_HDR(status, length) \
952 SMC_outw( status, ioaddr, DATA_REG ); \
953 SMC_outw( length, ioaddr, DATA_REG ); \
955 #define SMC_GET_PKT_HDR(status, length) \
957 (status) = SMC_inw( ioaddr, DATA_REG ); \
958 (length) = SMC_inw( ioaddr, DATA_REG ); \
962 #if SMC_CAN_USE_32BIT
963 #define _SMC_PUSH_DATA(p, l) \
967 if (__len >= 2 && (unsigned long)__ptr & 2) { \
969 SMC_outw( *(u16 *)__ptr, ioaddr, DATA_REG ); \
972 SMC_outsl( ioaddr, DATA_REG, __ptr, __len >> 2); \
974 __ptr += (__len & ~3); \
975 SMC_outw( *((u16 *)__ptr), ioaddr, DATA_REG ); \
978 #define _SMC_PULL_DATA(p, l) \
982 if ((unsigned long)__ptr & 2) { \
984 * We want 32bit alignment here. \
985 * Since some buses perform a full 32bit \
986 * fetch even for 16bit data we can't use \
987 * SMC_inw() here. Back both source (on chip \
988 * and destination) pointers of 2 bytes. \
992 SMC_SET_PTR( 2|PTR_READ|PTR_RCV|PTR_AUTOINC ); \
995 SMC_insl( ioaddr, DATA_REG, __ptr, __len >> 2); \
997 #elif SMC_CAN_USE_16BIT
998 #define _SMC_PUSH_DATA(p, l) SMC_outsw( ioaddr, DATA_REG, p, (l) >> 1 )
999 #define _SMC_PULL_DATA(p, l) SMC_insw ( ioaddr, DATA_REG, p, (l) >> 1 )
1000 #elif SMC_CAN_USE_8BIT
1001 #define _SMC_PUSH_DATA(p, l) SMC_outsb( ioaddr, DATA_REG, p, l )
1002 #define _SMC_PULL_DATA(p, l) SMC_insb ( ioaddr, DATA_REG, p, l )
1005 #if ! SMC_CAN_USE_16BIT
1006 #define SMC_outw(x, ioaddr, reg) \
1008 unsigned int __val16 = (x); \
1009 SMC_outb( __val16, ioaddr, reg ); \
1010 SMC_outb( __val16 >> 8, ioaddr, reg + (1 << SMC_IO_SHIFT));\
1012 #define SMC_inw(ioaddr, reg) \
1014 unsigned int __val16; \
1015 __val16 = SMC_inb( ioaddr, reg ); \
1016 __val16 |= SMC_inb( ioaddr, reg + (1 << SMC_IO_SHIFT)) << 8; \
1021 #ifdef SMC_CAN_USE_DATACS
1022 #define SMC_PUSH_DATA(p, l) \
1023 if ( lp->datacs ) { \
1024 unsigned char *__ptr = (p); \
1026 if (__len >= 2 && (unsigned long)__ptr & 2) { \
1028 SMC_outw( *((u16 *)__ptr), ioaddr, DATA_REG ); \
1031 outsl(lp->datacs, __ptr, __len >> 2); \
1033 __ptr += (__len & ~3); \
1034 SMC_outw( *((u16 *)__ptr), ioaddr, DATA_REG ); \
1037 _SMC_PUSH_DATA(p, l); \
1040 #define SMC_PULL_DATA(p, l) \
1041 if ( lp->datacs ) { \
1042 unsigned char *__ptr = (p); \
1044 if ((unsigned long)__ptr & 2) { \
1046 * We want 32bit alignment here. \
1047 * Since some buses perform a full 32bit \
1048 * fetch even for 16bit data we can't use \
1049 * SMC_inw() here. Back both source (on chip \
1050 * and destination) pointers of 2 bytes. \
1054 SMC_SET_PTR( 2|PTR_READ|PTR_RCV|PTR_AUTOINC ); \
1057 insl( lp->datacs, __ptr, __len >> 2); \
1059 _SMC_PULL_DATA(p, l); \
1062 #define SMC_PUSH_DATA(p, l) _SMC_PUSH_DATA(p, l)
1063 #define SMC_PULL_DATA(p, l) _SMC_PULL_DATA(p, l)
1066 #if !defined (SMC_INTERRUPT_PREAMBLE)
1067 # define SMC_INTERRUPT_PREAMBLE
1070 #endif /* _SMC91X_H_ */