1 #ifdef ALLMULTI
2 #error multicast support is not yet implemented
3 #endif
4 /**************************************************************************
5 Etherboot - BOOTP/TFTP Bootstrap Program
6 Intel EEPRO/10 NIC driver for Etherboot
7 Adapted from Linux eepro.c from kernel 2.2.17
8
9 This board accepts a 32 pin EEPROM (29C256), however a test with a
10 27C010 shows that this EPROM also works in the socket, but it's not clear
11 how repeatably. The two top address pins appear to be held low, thus
12 the bottom 32kB of the 27C010 is visible in the CPU's address space.
13 To be sure you could put 4 copies of the code in the 27C010, then
14 it doesn't matter whether the extra lines are held low or high, just
15 hopefully not floating as CMOS chips don't like floating inputs.
16
17 Be careful with seating the EPROM as the socket on my board actually
18 has 34 pins, the top row of 2 are not used.
19 ***************************************************************************/
20
21 /*
22
23 timlegge 2005-05-18 remove the relocation changes cards that
24 write directly to the hardware don't need it
25 */
26
27 /*
28 * This program is free software; you can redistribute it and/or
29 * modify it under the terms of the GNU General Public License as
30 * published by the Free Software Foundation; either version 2 of the
31 * License, or (at your option) any later version.
32 *
33 * This program is distributed in the hope that it will be useful, but
34 * WITHOUT ANY WARRANTY; without even the implied warranty of
35 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
36 * General Public License for more details.
37 *
38 * You should have received a copy of the GNU General Public License
39 * along with this program; if not, write to the Free Software
40 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
41 * 02110-1301, USA.
42 */
43
44 FILE_LICENCE ( GPL2_OR_LATER );
45
46 #include "etherboot.h"
47 #include <errno.h>
48 #include "nic.h"
49 #include <ipxe/isa.h>
50 #include <ipxe/ethernet.h>
51
52 /* Different 82595 chips */
53 #define LAN595 0
54 #define LAN595TX 1
55 #define LAN595FX 2
56 #define LAN595FX_10ISA 3
57
58 #define SLOW_DOWN inb(0x80);
59
60 /* The station (ethernet) address prefix, used for IDing the board. */
61 #define SA_ADDR0 0x00 /* Etherexpress Pro/10 */
62 #define SA_ADDR1 0xaa
63 #define SA_ADDR2 0x00
64
65 #define GetBit(x,y) ((x & (1<<y))>>y)
66
67 /* EEPROM Word 0: */
68 #define ee_PnP 0 /* Plug 'n Play enable bit */
69 #define ee_Word1 1 /* Word 1? */
70 #define ee_BusWidth 2 /* 8/16 bit */
71 #define ee_FlashAddr 3 /* Flash Address */
72 #define ee_FlashMask 0x7 /* Mask */
73 #define ee_AutoIO 6 /* */
74 #define ee_reserved0 7 /* =0! */
75 #define ee_Flash 8 /* Flash there? */
76 #define ee_AutoNeg 9 /* Auto Negotiation enabled? */
77 #define ee_IO0 10 /* IO Address LSB */
78 #define ee_IO0Mask 0x /*...*/
79 #define ee_IO1 15 /* IO MSB */
80
81 /* EEPROM Word 1: */
82 #define ee_IntSel 0 /* Interrupt */
83 #define ee_IntMask 0x7
84 #define ee_LI 3 /* Link Integrity 0= enabled */
85 #define ee_PC 4 /* Polarity Correction 0= enabled */
86 #define ee_TPE_AUI 5 /* PortSelection 1=TPE */
87 #define ee_Jabber 6 /* Jabber prevention 0= enabled */
88 #define ee_AutoPort 7 /* Auto Port Selection 1= Disabled */
89 #define ee_SMOUT 8 /* SMout Pin Control 0= Input */
90 #define ee_PROM 9 /* Flash EPROM / PROM 0=Flash */
91 #define ee_reserved1 10 /* .. 12 =0! */
92 #define ee_AltReady 13 /* Alternate Ready, 0=normal */
93 #define ee_reserved2 14 /* =0! */
94 #define ee_Duplex 15
95
96 /* Word2,3,4: */
97 #define ee_IA5 0 /*bit start for individual Addr Byte 5 */
98 #define ee_IA4 8 /*bit start for individual Addr Byte 5 */
99 #define ee_IA3 0 /*bit start for individual Addr Byte 5 */
100 #define ee_IA2 8 /*bit start for individual Addr Byte 5 */
101 #define ee_IA1 0 /*bit start for individual Addr Byte 5 */
102 #define ee_IA0 8 /*bit start for individual Addr Byte 5 */
103
104 /* Word 5: */
105 #define ee_BNC_TPE 0 /* 0=TPE */
106 #define ee_BootType 1 /* 00=None, 01=IPX, 10=ODI, 11=NDIS */
107 #define ee_BootTypeMask 0x3
108 #define ee_NumConn 3 /* Number of Connections 0= One or Two */
109 #define ee_FlashSock 4 /* Presence of Flash Socket 0= Present */
110 #define ee_PortTPE 5
111 #define ee_PortBNC 6
112 #define ee_PortAUI 7
113 #define ee_PowerMgt 10 /* 0= disabled */
114 #define ee_CP 13 /* Concurrent Processing */
115 #define ee_CPMask 0x7
116
117 /* Word 6: */
118 #define ee_Stepping 0 /* Stepping info */
119 #define ee_StepMask 0x0F
120 #define ee_BoardID 4 /* Manucaturer Board ID, reserved */
121 #define ee_BoardMask 0x0FFF
122
123 /* Word 7: */
124 #define ee_INT_TO_IRQ 0 /* int to IRQ Mapping = 0x1EB8 for Pro/10+ */
125 #define ee_FX_INT2IRQ 0x1EB8 /* the _only_ mapping allowed for FX chips */
126
127 /*..*/
128 #define ee_SIZE 0x40 /* total EEprom Size */
129 #define ee_Checksum 0xBABA /* initial and final value for adding checksum */
130
131
132 /* Card identification via EEprom: */
133 #define ee_addr_vendor 0x10 /* Word offset for EISA Vendor ID */
134 #define ee_addr_id 0x11 /* Word offset for Card ID */
135 #define ee_addr_SN 0x12 /* Serial Number */
136 #define ee_addr_CRC_8 0x14 /* CRC over last thee Bytes */
137
138
139 #define ee_vendor_intel0 0x25 /* Vendor ID Intel */
140 #define ee_vendor_intel1 0xD4
141 #define ee_id_eepro10p0 0x10 /* ID for eepro/10+ */
142 #define ee_id_eepro10p1 0x31
143
144 /* now this section could be used by both boards: the oldies and the ee10:
145 * ee10 uses tx buffer before of rx buffer and the oldies the inverse.
146 * (aris)
147 */
148 #define RAM_SIZE 0x8000
149
150 #define RCV_HEADER 8
151 #define RCV_DEFAULT_RAM 0x6000
152 #define RCV_RAM rcv_ram
153
154 static unsigned rcv_ram = RCV_DEFAULT_RAM;
155
156 #define XMT_HEADER 8
157 #define XMT_RAM (RAM_SIZE - RCV_RAM)
158
159 #define XMT_START ((rcv_start + RCV_RAM) % RAM_SIZE)
160
161 #define RCV_LOWER_LIMIT (rcv_start >> 8)
162 #define RCV_UPPER_LIMIT (((rcv_start + RCV_RAM) - 2) >> 8)
163 #define XMT_LOWER_LIMIT (XMT_START >> 8)
164 #define XMT_UPPER_LIMIT (((XMT_START + XMT_RAM) - 2) >> 8)
165
166 #define RCV_START_PRO 0x00
167 #define RCV_START_10 XMT_RAM
168 /* by default the old driver */
169 static unsigned rcv_start = RCV_START_PRO;
170
171 #define RCV_DONE 0x0008
172 #define RX_OK 0x2000
173 #define RX_ERROR 0x0d81
174
175 #define TX_DONE_BIT 0x0080
176 #define CHAIN_BIT 0x8000
177 #define XMT_STATUS 0x02
178 #define XMT_CHAIN 0x04
179 #define XMT_COUNT 0x06
180
181 #define BANK0_SELECT 0x00
182 #define BANK1_SELECT 0x40
183 #define BANK2_SELECT 0x80
184
185 /* Bank 0 registers */
186 #define COMMAND_REG 0x00 /* Register 0 */
187 #define MC_SETUP 0x03
188 #define XMT_CMD 0x04
189 #define DIAGNOSE_CMD 0x07
190 #define RCV_ENABLE_CMD 0x08
191 #define RCV_DISABLE_CMD 0x0a
192 #define STOP_RCV_CMD 0x0b
193 #define RESET_CMD 0x0e
194 #define POWER_DOWN_CMD 0x18
195 #define RESUME_XMT_CMD 0x1c
196 #define SEL_RESET_CMD 0x1e
197 #define STATUS_REG 0x01 /* Register 1 */
198 #define RX_INT 0x02
199 #define TX_INT 0x04
200 #define EXEC_STATUS 0x30
201 #define ID_REG 0x02 /* Register 2 */
202 #define R_ROBIN_BITS 0xc0 /* round robin counter */
203 #define ID_REG_MASK 0x2c
204 #define ID_REG_SIG 0x24
205 #define AUTO_ENABLE 0x10
206 #define INT_MASK_REG 0x03 /* Register 3 */
207 #define RX_STOP_MASK 0x01
208 #define RX_MASK 0x02
209 #define TX_MASK 0x04
210 #define EXEC_MASK 0x08
211 #define ALL_MASK 0x0f
212 #define IO_32_BIT 0x10
213 #define RCV_BAR 0x04 /* The following are word (16-bit) registers */
214 #define RCV_STOP 0x06
215
216 #define XMT_BAR_PRO 0x0a
217 #define XMT_BAR_10 0x0b
218 static unsigned xmt_bar = XMT_BAR_PRO;
219
220 #define HOST_ADDRESS_REG 0x0c
221 #define IO_PORT 0x0e
222 #define IO_PORT_32_BIT 0x0c
223
224 /* Bank 1 registers */
225 #define REG1 0x01
226 #define WORD_WIDTH 0x02
227 #define INT_ENABLE 0x80
228 #define INT_NO_REG 0x02
229 #define RCV_LOWER_LIMIT_REG 0x08
230 #define RCV_UPPER_LIMIT_REG 0x09
231
232 #define XMT_LOWER_LIMIT_REG_PRO 0x0a
233 #define XMT_UPPER_LIMIT_REG_PRO 0x0b
234 #define XMT_LOWER_LIMIT_REG_10 0x0b
235 #define XMT_UPPER_LIMIT_REG_10 0x0a
236 static unsigned xmt_lower_limit_reg = XMT_LOWER_LIMIT_REG_PRO;
237 static unsigned xmt_upper_limit_reg = XMT_UPPER_LIMIT_REG_PRO;
238
239 /* Bank 2 registers */
240 #define XMT_Chain_Int 0x20 /* Interrupt at the end of the transmit chain */
241 #define XMT_Chain_ErrStop 0x40 /* Interrupt at the end of the chain even if there are errors */
242 #define RCV_Discard_BadFrame 0x80 /* Throw bad frames away, and continue to receive others */
243 #define REG2 0x02
244 #define PRMSC_Mode 0x01
245 #define Multi_IA 0x20
246 #define REG3 0x03
247 #define TPE_BIT 0x04
248 #define BNC_BIT 0x20
249 #define REG13 0x0d
250 #define FDX 0x00
251 #define A_N_ENABLE 0x02
252
253 #define I_ADD_REG0 0x04
254 #define I_ADD_REG1 0x05
255 #define I_ADD_REG2 0x06
256 #define I_ADD_REG3 0x07
257 #define I_ADD_REG4 0x08
258 #define I_ADD_REG5 0x09
259
260 #define EEPROM_REG_PRO 0x0a
261 #define EEPROM_REG_10 0x0b
262 static unsigned eeprom_reg = EEPROM_REG_PRO;
263
264 #define EESK 0x01
265 #define EECS 0x02
266 #define EEDI 0x04
267 #define EEDO 0x08
268
269 /* The horrible routine to read a word from the serial EEPROM. */
270 /* IMPORTANT - the 82595 will be set to Bank 0 after the eeprom is read */
271
272 /* The delay between EEPROM clock transitions. */
273 #define eeprom_delay() { udelay(40); }
274 #define EE_READ_CMD (6 << 6)
275
276 /* do a full reset; data sheet asks for 250us delay */
277 #define eepro_full_reset(ioaddr) outb(RESET_CMD, ioaddr); udelay(255);
278
279 /* do a nice reset */
280 #define eepro_sel_reset(ioaddr) \
281 do { \
282 outb ( SEL_RESET_CMD, ioaddr ); \
283 (void) SLOW_DOWN; \
284 (void) SLOW_DOWN; \
285 } while (0)
286
287 /* clear all interrupts */
288 #define eepro_clear_int(ioaddr) outb(ALL_MASK, ioaddr + STATUS_REG)
289
290 /* enable rx */
291 #define eepro_en_rx(ioaddr) outb(RCV_ENABLE_CMD, ioaddr)
292
293 /* disable rx */
294 #define eepro_dis_rx(ioaddr) outb(RCV_DISABLE_CMD, ioaddr)
295
296 /* switch bank */
297 #define eepro_sw2bank0(ioaddr) outb(BANK0_SELECT, ioaddr)
298 #define eepro_sw2bank1(ioaddr) outb(BANK1_SELECT, ioaddr)
299 #define eepro_sw2bank2(ioaddr) outb(BANK2_SELECT, ioaddr)
300
301 static unsigned int rx_start, tx_start;
302 static int tx_last;
303 static unsigned int tx_end;
304 static int eepro = 0;
305 static unsigned int mem_start, mem_end = RCV_DEFAULT_RAM / 1024;
306
307 /**************************************************************************
308 RESET - Reset adapter
309 ***************************************************************************/
eepro_reset(struct nic * nic)310 static void eepro_reset(struct nic *nic)
311 {
312 int temp_reg, i;
313
314 /* put the card in its initial state */
315 eepro_sw2bank2(nic->ioaddr); /* be careful, bank2 now */
316 temp_reg = inb(nic->ioaddr + eeprom_reg);
317 DBG("Stepping %d\n", temp_reg >> 5);
318 if (temp_reg & 0x10) /* check the TurnOff Enable bit */
319 outb(temp_reg & 0xEF, nic->ioaddr + eeprom_reg);
320 for (i = 0; i < ETH_ALEN; i++) /* fill the MAC address */
321 outb(nic->node_addr[i], nic->ioaddr + I_ADD_REG0 + i);
322 temp_reg = inb(nic->ioaddr + REG1);
323 /* setup Transmit Chaining and discard bad RCV frames */
324 outb(temp_reg | XMT_Chain_Int | XMT_Chain_ErrStop
325 | RCV_Discard_BadFrame, nic->ioaddr + REG1);
326 temp_reg = inb(nic->ioaddr + REG2); /* match broadcast */
327 outb(temp_reg | 0x14, nic->ioaddr + REG2);
328 temp_reg = inb(nic->ioaddr + REG3);
329 outb(temp_reg & 0x3F, nic->ioaddr + REG3); /* clear test mode */
330 /* set the receiving mode */
331 eepro_sw2bank1(nic->ioaddr); /* be careful, bank1 now */
332 /* initialise the RCV and XMT upper and lower limits */
333 outb(RCV_LOWER_LIMIT, nic->ioaddr + RCV_LOWER_LIMIT_REG);
334 outb(RCV_UPPER_LIMIT, nic->ioaddr + RCV_UPPER_LIMIT_REG);
335 outb(XMT_LOWER_LIMIT, nic->ioaddr + xmt_lower_limit_reg);
336 outb(XMT_UPPER_LIMIT, nic->ioaddr + xmt_upper_limit_reg);
337 eepro_sw2bank0(nic->ioaddr); /* Switch back to bank 0 */
338 eepro_clear_int(nic->ioaddr);
339 /* Initialise RCV */
340 outw(rx_start = (RCV_LOWER_LIMIT << 8), nic->ioaddr + RCV_BAR);
341 outw(((RCV_UPPER_LIMIT << 8) | 0xFE), nic->ioaddr + RCV_STOP);
342 /* Make sure 1st poll won't find a valid packet header */
343 outw((RCV_LOWER_LIMIT << 8), nic->ioaddr + HOST_ADDRESS_REG);
344 outw(0, nic->ioaddr + IO_PORT);
345 /* Intialise XMT */
346 outw((XMT_LOWER_LIMIT << 8), nic->ioaddr + xmt_bar);
347 eepro_sel_reset(nic->ioaddr);
348 tx_start = tx_end = (unsigned int) (XMT_LOWER_LIMIT << 8);
349 tx_last = 0;
350 eepro_en_rx(nic->ioaddr);
351 }
352
353 /**************************************************************************
354 POLL - Wait for a frame
355 ***************************************************************************/
eepro_poll(struct nic * nic,int retrieve)356 static int eepro_poll(struct nic *nic, int retrieve)
357 {
358 unsigned int rcv_car = rx_start;
359 unsigned int rcv_event, rcv_status, rcv_next_frame, rcv_size;
360
361 /* return true if there's an ethernet packet ready to read */
362 /* nic->packet should contain data on return */
363 /* nic->packetlen should contain length of data */
364 #if 0
365 if ((inb(nic->ioaddr + STATUS_REG) & 0x40) == 0)
366 return (0);
367 outb(0x40, nic->ioaddr + STATUS_REG);
368 #endif
369 outw(rcv_car, nic->ioaddr + HOST_ADDRESS_REG);
370 rcv_event = inw(nic->ioaddr + IO_PORT);
371 if (rcv_event != RCV_DONE)
372 return (0);
373
374 /* FIXME: I'm guessing this might not work with this card, since
375 it looks like once a rcv_event is started it must be completed.
376 maybe there's another way. */
377 if ( ! retrieve ) return 1;
378
379 rcv_status = inw(nic->ioaddr + IO_PORT);
380 rcv_next_frame = inw(nic->ioaddr + IO_PORT);
381 rcv_size = inw(nic->ioaddr + IO_PORT);
382 #if 0
383 printf("%hX %hX %d %hhX\n", rcv_status, rcv_next_frame, rcv_size,
384 inb(nic->ioaddr + STATUS_REG));
385 #endif
386 if ((rcv_status & (RX_OK|RX_ERROR)) != RX_OK) {
387 printf("Receive error %hX\n", rcv_status);
388 return (0);
389 }
390 rcv_size &= 0x3FFF;
391 insw(nic->ioaddr + IO_PORT, nic->packet, ((rcv_size + 3) >> 1));
392 #if 0
393 {
394 int i;
395 for (i = 0; i < 48; i++) {
396 printf("%hhX", nic->packet[i]);
397 putchar(i % 16 == 15 ? '\n' : ' ');
398 }
399 }
400 #endif
401 nic->packetlen = rcv_size;
402 rcv_car = (rx_start + RCV_HEADER + rcv_size);
403 rx_start = rcv_next_frame;
404 /*
405 hex_dump(rcv_car, nic->packetlen);
406 */
407
408 if (rcv_car == 0)
409 rcv_car = ((RCV_UPPER_LIMIT << 8) | 0xff);
410 outw(rcv_car - 1, nic->ioaddr + RCV_STOP);
411 return (1);
412 }
413
414 /**************************************************************************
415 TRANSMIT - Transmit a frame
416 ***************************************************************************/
eepro_transmit(struct nic * nic,const char * d,unsigned int t,unsigned int s,const char * p)417 static void eepro_transmit(
418 struct nic *nic,
419 const char *d, /* Destination */
420 unsigned int t, /* Type */
421 unsigned int s, /* size */
422 const char *p) /* Packet */
423 {
424 unsigned int status, tx_available, last, end, length;
425 unsigned short type;
426 int boguscount = 20;
427
428 length = s + ETH_HLEN;
429 if (tx_end > tx_start)
430 tx_available = XMT_RAM - (tx_end - tx_start);
431 else if (tx_end < tx_start)
432 tx_available = tx_start - tx_end;
433 else
434 tx_available = XMT_RAM;
435 assert ( length <= tx_available );
436 last = tx_end;
437 end = last + (((length + 3) >> 1) << 1) + XMT_HEADER;
438 if (end >= (XMT_UPPER_LIMIT << 8)) {
439 last = (XMT_LOWER_LIMIT << 8);
440 end = last + (((length + 3) >> 1) << 1) + XMT_HEADER;
441 }
442 outw(last, nic->ioaddr + HOST_ADDRESS_REG);
443 outw(XMT_CMD, nic->ioaddr + IO_PORT);
444 outw(0, nic->ioaddr + IO_PORT);
445 outw(end, nic->ioaddr + IO_PORT);
446 outw(length, nic->ioaddr + IO_PORT);
447 outsw(nic->ioaddr + IO_PORT, d, ETH_ALEN / 2);
448 outsw(nic->ioaddr + IO_PORT, nic->node_addr, ETH_ALEN / 2);
449 type = htons(t);
450 outsw(nic->ioaddr + IO_PORT, &type, sizeof(type) / 2);
451 outsw(nic->ioaddr + IO_PORT, p, (s + 3) >> 1);
452 /* A dummy read to flush the DRAM write pipeline */
453 status = inw(nic->ioaddr + IO_PORT);
454 outw(last, nic->ioaddr + xmt_bar);
455 outb(XMT_CMD, nic->ioaddr);
456 tx_start = last;
457 tx_last = last;
458 tx_end = end;
459 #if 0
460 printf("%d %d\n", tx_start, tx_end);
461 #endif
462 while (boguscount > 0) {
463 if (((status = inw(nic->ioaddr + IO_PORT)) & TX_DONE_BIT) == 0) {
464 udelay(40);
465 boguscount--;
466 continue;
467 }
468 if ((status & 0x2000) == 0) {
469 DBG("Transmit status %hX\n", status);
470 }
471 }
472 }
473
474 /**************************************************************************
475 DISABLE - Turn off ethernet interface
476 ***************************************************************************/
eepro_disable(struct nic * nic,struct isa_device * isa __unused)477 static void eepro_disable ( struct nic *nic, struct isa_device *isa __unused ) {
478 eepro_sw2bank0(nic->ioaddr); /* Switch to bank 0 */
479 /* Flush the Tx and disable Rx */
480 outb(STOP_RCV_CMD, nic->ioaddr);
481 tx_start = tx_end = (XMT_LOWER_LIMIT << 8);
482 tx_last = 0;
483 /* Reset the 82595 */
484 eepro_full_reset(nic->ioaddr);
485 }
486
487 /**************************************************************************
488 DISABLE - Enable, Disable, or Force interrupts
489 ***************************************************************************/
eepro_irq(struct nic * nic __unused,irq_action_t action __unused)490 static void eepro_irq(struct nic *nic __unused, irq_action_t action __unused)
491 {
492 switch ( action ) {
493 case DISABLE :
494 break;
495 case ENABLE :
496 break;
497 case FORCE :
498 break;
499 }
500 }
501
read_eeprom(uint16_t ioaddr,int location)502 static int read_eeprom(uint16_t ioaddr, int location)
503 {
504 int i;
505 unsigned short retval = 0;
506 int ee_addr = ioaddr + eeprom_reg;
507 int read_cmd = location | EE_READ_CMD;
508 int ctrl_val = EECS;
509
510 if (eepro == LAN595FX_10ISA) {
511 eepro_sw2bank1(ioaddr);
512 outb(0x00, ioaddr + STATUS_REG);
513 }
514 eepro_sw2bank2(ioaddr);
515 outb(ctrl_val, ee_addr);
516 /* shift the read command bits out */
517 for (i = 8; i >= 0; i--) {
518 short outval = (read_cmd & (1 << i)) ? ctrl_val | EEDI : ctrl_val;
519 outb(outval, ee_addr);
520 outb(outval | EESK, ee_addr); /* EEPROM clock tick */
521 eeprom_delay();
522 outb(outval, ee_addr); /* finish EEPROM clock tick */
523 eeprom_delay();
524 }
525 outb(ctrl_val, ee_addr);
526 for (i = 16; i > 0; i--) {
527 outb(ctrl_val | EESK, ee_addr);
528 eeprom_delay();
529 retval = (retval << 1) | ((inb(ee_addr) & EEDO) ? 1 : 0);
530 outb(ctrl_val, ee_addr);
531 eeprom_delay();
532 }
533 /* terminate the EEPROM access */
534 ctrl_val &= ~EECS;
535 outb(ctrl_val | EESK, ee_addr);
536 eeprom_delay();
537 outb(ctrl_val, ee_addr);
538 eeprom_delay();
539 eepro_sw2bank0(ioaddr);
540 return (retval);
541 }
542
eepro_probe1(isa_probe_addr_t ioaddr)543 static int eepro_probe1 ( isa_probe_addr_t ioaddr ) {
544 int id, counter;
545
546 id = inb(ioaddr + ID_REG);
547 if ((id & ID_REG_MASK) != ID_REG_SIG)
548 return (0);
549 counter = id & R_ROBIN_BITS;
550 if (((id = inb(ioaddr + ID_REG)) & R_ROBIN_BITS) != (counter + 0x40))
551 return (0);
552 /* yes the 82595 has been found */
553 return (1);
554 }
555
556 static struct nic_operations eepro_operations = {
557 .connect = dummy_connect,
558 .poll = eepro_poll,
559 .transmit = eepro_transmit,
560 .irq = eepro_irq,
561
562 };
563
564 /**************************************************************************
565 PROBE - Look for an adapter, this routine's visible to the outside
566 ***************************************************************************/
eepro_probe(struct nic * nic,struct isa_device * isa)567 static int eepro_probe ( struct nic *nic, struct isa_device *isa ) {
568
569 int i, l_eepro = 0;
570 union {
571 unsigned char caddr[ETH_ALEN];
572 unsigned short saddr[ETH_ALEN/2];
573 } station_addr;
574 const char *name;
575
576 nic->irqno = 0;
577 nic->ioaddr = isa->ioaddr;
578
579 station_addr.saddr[2] = read_eeprom(nic->ioaddr,2);
580 if ( ( station_addr.saddr[2] == 0x0000 ) ||
581 ( station_addr.saddr[2] == 0xFFFF ) ) {
582 l_eepro = 3;
583 eepro = LAN595FX_10ISA;
584 eeprom_reg= EEPROM_REG_10;
585 rcv_start = RCV_START_10;
586 xmt_lower_limit_reg = XMT_LOWER_LIMIT_REG_10;
587 xmt_upper_limit_reg = XMT_UPPER_LIMIT_REG_10;
588 station_addr.saddr[2] = read_eeprom(nic->ioaddr,2);
589 }
590 station_addr.saddr[1] = read_eeprom(nic->ioaddr,3);
591 station_addr.saddr[0] = read_eeprom(nic->ioaddr,4);
592 if (l_eepro)
593 name = "Intel EtherExpress 10 ISA";
594 else if (read_eeprom(nic->ioaddr,7) == ee_FX_INT2IRQ) {
595 name = "Intel EtherExpress Pro/10+ ISA";
596 l_eepro = 2;
597 } else if (station_addr.saddr[0] == SA_ADDR1) {
598 name = "Intel EtherExpress Pro/10 ISA";
599 l_eepro = 1;
600 } else {
601 l_eepro = 0;
602 name = "Intel 82595-based LAN card";
603 }
604 station_addr.saddr[0] = bswap_16(station_addr.saddr[0]);
605 station_addr.saddr[1] = bswap_16(station_addr.saddr[1]);
606 station_addr.saddr[2] = bswap_16(station_addr.saddr[2]);
607 for (i = 0; i < ETH_ALEN; i++) {
608 nic->node_addr[i] = station_addr.caddr[i];
609 }
610
611 DBG ( "%s ioaddr %#hX, addr %s", name, nic->ioaddr, eth_ntoa ( nic->node_addr ) );
612
613 mem_start = RCV_LOWER_LIMIT << 8;
614 if ((mem_end & 0x3F) < 3 || (mem_end & 0x3F) > 29)
615 mem_end = RCV_UPPER_LIMIT << 8;
616 else {
617 mem_end = mem_end * 1024 + (RCV_LOWER_LIMIT << 8);
618 rcv_ram = mem_end - (RCV_LOWER_LIMIT << 8);
619 }
620 printf(", Rx mem %dK, if %s\n", (mem_end - mem_start) >> 10,
621 GetBit(read_eeprom(nic->ioaddr,5), ee_BNC_TPE) ? "BNC" : "TP");
622
623 eepro_reset(nic);
624
625 /* point to NIC specific routines */
626 nic->nic_op = &eepro_operations;
627 return 1;
628 }
629
630 static isa_probe_addr_t eepro_probe_addrs[] = {
631 0x300, 0x210, 0x240, 0x280, 0x2C0, 0x200, 0x320, 0x340, 0x360,
632 };
633
634 ISA_DRIVER ( eepro_driver, eepro_probe_addrs, eepro_probe1,
635 GENERIC_ISAPNP_VENDOR, 0x828a );
636
637 DRIVER ( "eepro", nic_driver, isa_driver, eepro_driver,
638 eepro_probe, eepro_disable );
639
640 ISA_ROM ( "eepro", "Intel Etherexpress Pro/10" );
641
642 /*
643 * Local variables:
644 * c-basic-offset: 8
645 * c-indent-level: 8
646 * tab-width: 8
647 * End:
648 */
649