1 /*------------------------------------------------------------------------
3 * This is a driver for SMSC's LAN91C96 single-chip Ethernet device, based
4 * on the SMC91111 driver from U-boot.
7 * Sysgo Real-Time Solutions, GmbH <www.elinos.com>
8 * Rolf Offermanns <rof@sysgo.de>
10 * Copyright (C) 2001 Standard Microsystems Corporation (SMSC)
11 * Developed by Simple Network Magic Corporation (SNMC)
12 * Copyright (C) 1996 by Erik Stahlman (ES)
14 * This program is free software; you can redistribute it and/or modify
15 * it under the terms of the GNU General Public License as published by
16 * the Free Software Foundation; either version 2 of the License, or
17 * (at your option) any later version.
19 * This program is distributed in the hope that it will be useful,
20 * but WITHOUT ANY WARRANTY; without even the implied warranty of
21 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
22 * GNU General Public License for more details.
24 * You should have received a copy of the GNU General Public License
25 * along with this program; if not, write to the Free Software
26 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
28 * Information contained in this file was obtained from the LAN91C96
29 * manual from SMC. To get a copy, if you really want one, you can find
30 * information under www.smsc.com.
33 * "Features" of the SMC chip:
34 * 6144 byte packet memory. ( for the 91C96 )
35 * EEPROM for configuration
36 * AUI/TP selection ( mine has 10Base2/10BaseT select )
39 * io = for the base address
43 * Erik Stahlman ( erik@vt.edu )
44 * Daris A Nevil ( dnevil@snmc.com )
47 * Hardware multicast code from Peter Cammaert ( pc@denkart.be )
50 * o SMSC LAN91C96 databook (www.smsc.com)
51 * o smc91111.c (u-boot driver)
52 * o smc9194.c (linux kernel driver)
53 * o lan91c96.c (Intel Diagnostic Manager driver)
56 * 04/30/03 Mathijs Haarman Modified smc91111.c (u-boot version)
58 *---------------------------------------------------------------------------
66 /*------------------------------------------------------------------------
68 * Configuration options, for the experienced user to change.
70 -------------------------------------------------------------------------*/
72 /* Use power-down feature of the chip */
76 * Wait time for memory to be free. This probably shouldn't be
77 * tuned that much, as waiting for this means nothing else happens
80 #define MEMORY_WAIT_TIME 16
85 #define PRINTK3(args...) printf(args)
87 #define PRINTK3(args...)
91 #define PRINTK2(args...) printf(args)
93 #define PRINTK2(args...)
97 #define PRINTK(args...) printf(args)
99 #define PRINTK(args...)
103 /*------------------------------------------------------------------------
105 * The internal workings of the driver. If you are changing anything
106 * here with the SMC stuff, you should have the datasheet and know
107 * what you are doing.
109 *------------------------------------------------------------------------
111 #define CARDNAME "LAN91C96"
113 #define SMC_BASE_ADDRESS CONFIG_LAN91C96_BASE
115 #define SMC_DEV_NAME "LAN91C96"
116 #define SMC_ALLOC_MAX_TRY 5
117 #define SMC_TX_TIMEOUT 30
121 #ifdef CONFIG_LAN91C96_USE_32_BIT
127 /*-----------------------------------------------------------------
129 * The driver can be entered at any of the following entry points.
131 *-----------------------------------------------------------------
134 extern int eth_init (bd_t
* bd
);
135 extern void eth_halt (void);
136 extern int eth_rx (void);
137 extern int eth_send (volatile void *packet
, int length
);
139 static int smc_hw_init (void);
143 * This is called by register_netdev(). It is responsible for
144 * checking the portlist for the SMC9000 series chipset. If it finds
145 * one, then it will initialize the device, find the hardware information,
146 * and sets up the appropriate device parameters.
147 * NOTE: Interrupts are *OFF* when this procedure is called.
149 * NB:This shouldn't be static since it is referred to externally.
154 * This is called by unregister_netdev(). It is responsible for
155 * cleaning up before the driver is finally unregistered and discarded.
157 void smc_destructor (void);
160 * The kernel calls this function when someone wants to use the device,
161 * typically 'ifconfig ethX up'.
163 static int smc_open (bd_t
*bd
);
167 * This is called by the kernel in response to 'ifconfig ethX down'. It
168 * is responsible for cleaning up everything that the open routine
169 * does, and maybe putting the card into a powerdown state.
171 static int smc_close (void);
174 * This is a separate procedure to handle the receipt of a packet, to
175 * leave the interrupt code looking slightly cleaner
177 static int smc_rcv (void);
179 /* See if a MAC address is defined in the current environment. If so use it. If not
180 . print a warning and set the environment and other globals with the default.
181 . If an EEPROM is present it really should be consulted.
183 int smc_get_ethaddr(bd_t
*bd
);
184 int get_rom_mac(unsigned char *v_rom_mac
);
186 /* ------------------------------------------------------------
188 * ------------------------------------------------------------
191 static unsigned char smc_mac_addr
[] = { 0xc0, 0x00, 0x00, 0x1b, 0x62, 0x9c };
194 * This function must be called before smc_open() if you want to override
195 * the default mac address.
198 void smc_set_mac_addr (const unsigned char *addr
)
202 for (i
= 0; i
< sizeof (smc_mac_addr
); i
++) {
203 smc_mac_addr
[i
] = addr
[i
];
208 * smc_get_macaddr is no longer used. If you want to override the default
209 * mac address, call smc_get_mac_addr as a part of the board initialisation.
213 void smc_get_macaddr (byte
* addr
)
215 /* MAC ADDRESS AT FLASHBLOCK 1 / OFFSET 0x10 */
216 unsigned char *dnp1110_mac
= (unsigned char *) (0xE8000000 + 0x20010);
220 for (i
= 0; i
< 6; i
++) {
221 addr
[0] = *(dnp1110_mac
+ 0);
222 addr
[1] = *(dnp1110_mac
+ 1);
223 addr
[2] = *(dnp1110_mac
+ 2);
224 addr
[3] = *(dnp1110_mac
+ 3);
225 addr
[4] = *(dnp1110_mac
+ 4);
226 addr
[5] = *(dnp1110_mac
+ 5);
231 /***********************************************
232 * Show available memory *
233 ***********************************************/
234 void dump_memory_info (void)
239 old_bank
= SMC_inw (LAN91C96_BANK_SELECT
) & 0xF;
242 mem_info
= SMC_inw (LAN91C96_MIR
);
243 PRINTK2 ("Memory: %4d available\n", (mem_info
>> 8) * 2048);
245 SMC_SELECT_BANK (old_bank
);
249 * A rather simple routine to print out a packet for debugging purposes.
252 static void print_packet (byte
*, int);
255 /* #define tx_done(dev) 1 */
258 /* this does a soft reset on the device */
259 static void smc_reset (void);
261 /* Enable Interrupts, Receive, and Transmit */
262 static void smc_enable (void);
264 /* this puts the device in an inactive state */
265 static void smc_shutdown (void);
268 static int poll4int (byte mask
, int timeout
)
270 int tmo
= get_timer (0) + timeout
* CONFIG_SYS_HZ
;
272 word old_bank
= SMC_inw (LAN91C96_BANK_SELECT
);
274 PRINTK2 ("Polling...\n");
276 while ((SMC_inw (LAN91C96_INT_STATS
) & mask
) == 0) {
277 if (get_timer (0) >= tmo
) {
283 /* restore old bank selection */
284 SMC_SELECT_BANK (old_bank
);
293 * Function: smc_reset( void )
295 * This sets the SMC91111 chip to its normal state, hopefully from whatever
296 * mess that any other DOS driver has put it in.
298 * Maybe I should reset more registers to defaults in here? SOFTRST should
302 * 1. send a SOFT RESET
303 * 2. wait for it to finish
304 * 3. enable autorelease mode
305 * 4. reset the memory management unit
306 * 5. clear all interrupts
309 static void smc_reset (void)
311 PRINTK2 ("%s:smc_reset\n", SMC_DEV_NAME
);
313 /* This resets the registers mostly to defaults, but doesn't
314 affect EEPROM. That seems unnecessary */
316 SMC_outw (LAN91C96_RCR_SOFT_RST
, LAN91C96_RCR
);
320 /* Disable transmit and receive functionality */
321 SMC_outw (0, LAN91C96_RCR
);
322 SMC_outw (0, LAN91C96_TCR
);
324 /* set the control register */
326 SMC_outw (SMC_inw (LAN91C96_CONTROL
) | LAN91C96_CTR_BIT_8
,
329 /* Disable all interrupts */
330 SMC_outb (0, LAN91C96_INT_MASK
);
334 * Function: smc_enable
335 * Purpose: let the chip talk to the outside work
337 * 1. Initialize the Memory Configuration Register
338 * 2. Enable the transmitter
339 * 3. Enable the receiver
341 static void smc_enable ()
343 PRINTK2 ("%s:smc_enable\n", SMC_DEV_NAME
);
346 /* Initialize the Memory Configuration Register. See page
347 49 of the LAN91C96 data sheet for details. */
348 SMC_outw (LAN91C96_MCR_TRANSMIT_PAGES
, LAN91C96_MCR
);
350 /* Initialize the Transmit Control Register */
351 SMC_outw (LAN91C96_TCR_TXENA
, LAN91C96_TCR
);
352 /* Initialize the Receive Control Register
354 * The promiscuous bit set because I could not receive ARP reply
355 * packets from the server when I send a ARP request. It only works
356 * when I set the promiscuous bit
358 SMC_outw (LAN91C96_RCR_RXEN
| LAN91C96_RCR_PRMS
, LAN91C96_RCR
);
362 * Function: smc_shutdown
363 * Purpose: closes down the SMC91xxx chip.
365 * 1. zero the interrupt mask
366 * 2. clear the enable receive flag
367 * 3. clear the enable xmit flags
370 * (1) maybe utilize power down mode.
371 * Why not yet? Because while the chip will go into power down mode,
372 * the manual says that it will wake up in response to any I/O requests
373 * in the register space. Empirical results do not show this working.
375 static void smc_shutdown ()
377 PRINTK2 (CARDNAME
":smc_shutdown\n");
379 /* no more interrupts for me */
381 SMC_outb (0, LAN91C96_INT_MASK
);
383 /* and tell the card to stay away from that nasty outside world */
385 SMC_outb (0, LAN91C96_RCR
);
386 SMC_outb (0, LAN91C96_TCR
);
391 * Function: smc_hardware_send_packet(struct net_device * )
393 * This sends the actual packet to the SMC9xxx chip.
396 * First, see if a saved_skb is available.
397 * ( this should NOT be called if there is no 'saved_skb'
398 * Now, find the packet number that the chip allocated
399 * Point the data pointers at it in memory
400 * Set the length word in the chip's memory
401 * Dump the packet to chip memory
402 * Check if a last byte is needed ( odd length packet )
403 * if so, set the control flag right
404 * Tell the card to send it
405 * Enable the transmit interrupt, so I know if it failed
406 * Free the kernel data if I actually sent it.
408 static int smc_send_packet (volatile void *packet
, int packet_length
)
411 unsigned long ioaddr
;
420 PRINTK3 ("%s:smc_hardware_send_packet\n", SMC_DEV_NAME
);
422 length
= ETH_ZLEN
< packet_length
? packet_length
: ETH_ZLEN
;
425 ** The MMU wants the number of pages to be the number of 256 bytes
426 ** 'pages', minus 1 ( since a packet can't ever have 0 pages :) )
428 ** The 91C111 ignores the size bits, but the code is left intact
429 ** for backwards and future compatibility.
431 ** Pkt size for allocating is data length +6 (for additional status
432 ** words, length and ctl!)
434 ** If odd size then last byte is included in this header.
436 numPages
= ((length
& 0xfffe) + 6);
437 numPages
>>= 8; /* Divide by 256 */
440 printf ("%s: Far too big packet error. \n", SMC_DEV_NAME
);
444 /* now, try to allocate the memory */
447 SMC_outw (LAN91C96_MMUCR_ALLOC_TX
| numPages
, LAN91C96_MMU
);
451 time_out
= MEMORY_WAIT_TIME
;
453 status
= SMC_inb (LAN91C96_INT_STATS
);
454 if (status
& LAN91C96_IST_ALLOC_INT
) {
456 SMC_outb (LAN91C96_IST_ALLOC_INT
, LAN91C96_INT_STATS
);
459 } while (--time_out
);
462 PRINTK2 ("%s: memory allocation, try %d failed ...\n",
464 if (try < SMC_ALLOC_MAX_TRY
)
470 PRINTK2 ("%s: memory allocation, try %d succeeded ...\n",
473 /* I can send the packet now.. */
475 ioaddr
= SMC_BASE_ADDRESS
;
477 buf
= (byte
*) packet
;
479 /* If I get here, I _know_ there is a packet slot waiting for me */
480 packet_no
= SMC_inb (LAN91C96_ARR
);
481 if (packet_no
& LAN91C96_ARR_FAILED
) {
482 /* or isn't there? BAD CHIP! */
483 printf ("%s: Memory allocation failed. \n", SMC_DEV_NAME
);
487 /* we have a packet address, so tell the card to use it */
488 SMC_outb (packet_no
, LAN91C96_PNR
);
490 /* point to the beginning of the packet */
491 SMC_outw (LAN91C96_PTR_AUTO_INCR
, LAN91C96_POINTER
);
493 PRINTK3 ("%s: Trying to xmit packet of length %x\n",
494 SMC_DEV_NAME
, length
);
497 printf ("Transmitting Packet\n");
498 print_packet (buf
, length
);
501 /* send the packet length ( +6 for status, length and ctl byte )
502 and the status word ( set to zeros ) */
504 SMC_outl ((length
+ 6) << 16, LAN91C96_DATA_HIGH
);
506 SMC_outw (0, LAN91C96_DATA_HIGH
);
507 /* send the packet length ( +6 for status words, length, and ctl */
508 SMC_outw ((length
+ 6), LAN91C96_DATA_HIGH
);
509 #endif /* USE_32_BIT */
511 /* send the actual data
512 * I _think_ it's faster to send the longs first, and then
513 * mop up by sending the last word. It depends heavily
514 * on alignment, at least on the 486. Maybe it would be
515 * a good idea to check which is optimal? But that could take
516 * almost as much time as is saved?
519 SMC_outsl (LAN91C96_DATA_HIGH
, buf
, length
>> 2);
521 SMC_outw (*((word
*) (buf
+ (length
& 0xFFFFFFFC))),
524 SMC_outsw (LAN91C96_DATA_HIGH
, buf
, (length
) >> 1);
525 #endif /* USE_32_BIT */
527 /* Send the last byte, if there is one. */
528 if ((length
& 1) == 0) {
529 SMC_outw (0, LAN91C96_DATA_HIGH
);
531 SMC_outw (buf
[length
- 1] | 0x2000, LAN91C96_DATA_HIGH
);
534 /* and let the chipset deal with it */
535 SMC_outw (LAN91C96_MMUCR_ENQUEUE
, LAN91C96_MMU
);
537 /* poll for TX INT */
538 if (poll4int (LAN91C96_MSK_TX_INT
, SMC_TX_TIMEOUT
)) {
540 PRINTK2 ("%s: TX timeout, sending failed...\n", SMC_DEV_NAME
);
543 SMC_outw (LAN91C96_MMUCR_RELEASE_TX
, LAN91C96_MMU
);
545 /* wait for MMU getting ready (low) */
546 while (SMC_inw (LAN91C96_MMU
) & LAN91C96_MMUCR_NO_BUSY
) {
550 PRINTK2 ("MMU ready\n");
556 SMC_outw (LAN91C96_IST_TX_INT
, LAN91C96_INT_STATS
);
558 PRINTK2 ("%s: Sent packet of length %d \n", SMC_DEV_NAME
, length
);
561 SMC_outw (LAN91C96_MMUCR_RELEASE_TX
, LAN91C96_MMU
);
563 /* wait for MMU getting ready (low) */
564 while (SMC_inw (LAN91C96_MMU
) & LAN91C96_MMUCR_NO_BUSY
) {
568 PRINTK2 ("MMU ready\n");
574 /*-------------------------------------------------------------------------
575 * smc_destructor( struct net_device * dev )
577 * dev, pointer to the device structure
581 *--------------------------------------------------------------------------
583 void smc_destructor ()
585 PRINTK2 (CARDNAME
":smc_destructor\n");
590 * Open and Initialize the board
592 * Set up everything, reset the card, etc ..
595 static int smc_open (bd_t
*bd
)
597 int i
, err
; /* used to set hw ethernet address */
599 PRINTK2 ("%s:smc_open\n", SMC_DEV_NAME
);
601 /* reset the hardware */
608 err
= smc_get_ethaddr (bd
); /* set smc_mac_addr, and sync it with u-boot globals */
610 memset (bd
->bi_enetaddr
, 0, 6); /* hack to make error stick! upper code will abort if not set */
611 return (-1); /* upper code ignores this, but NOT bi_enetaddr */
614 for (i
= 0; i
< 6; i
+= 2) {
617 address
= smc_mac_addr
[i
+ 1] << 8;
618 address
|= smc_mac_addr
[i
];
619 SMC_outw (address
, LAN91C96_IA0
+ i
);
622 for (i
= 0; i
< 6; i
++)
623 SMC_outb (smc_mac_addr
[i
], LAN91C96_IA0
+ i
);
628 /*-------------------------------------------------------------
630 * smc_rcv - receive a packet from the card
632 * There is ( at least ) a packet waiting to be read from
636 * o If an error, record it
637 * o otherwise, read in the packet
638 *-------------------------------------------------------------
640 static int smc_rcv ()
653 packet_number
= SMC_inw (LAN91C96_FIFO
);
655 if (packet_number
& LAN91C96_FIFO_RXEMPTY
) {
659 PRINTK3 ("%s:smc_rcv\n", SMC_DEV_NAME
);
660 /* start reading from the start of the packet */
661 SMC_outw (LAN91C96_PTR_READ
| LAN91C96_PTR_RCV
|
662 LAN91C96_PTR_AUTO_INCR
, LAN91C96_POINTER
);
664 /* First two words are status and packet_length */
666 stat_len
= SMC_inl (LAN91C96_DATA_HIGH
);
667 status
= stat_len
& 0xffff;
668 packet_length
= stat_len
>> 16;
670 status
= SMC_inw (LAN91C96_DATA_HIGH
);
671 packet_length
= SMC_inw (LAN91C96_DATA_HIGH
);
674 packet_length
&= 0x07ff; /* mask off top bits */
676 PRINTK2 ("RCV: STATUS %4x LENGTH %4x\n", status
, packet_length
);
678 if (!(status
& FRAME_FILTER
)) {
679 /* Adjust for having already read the first two words */
680 packet_length
-= 4; /*4; */
683 /* set odd length for bug in LAN91C111, */
684 /* which never sets RS_ODDFRAME */
689 PRINTK3 (" Reading %d dwords (and %d bytes) \n",
690 packet_length
>> 2, packet_length
& 3);
691 /* QUESTION: Like in the TX routine, do I want
692 to send the DWORDs or the bytes first, or some
693 mixture. A mixture might improve already slow PIO
695 SMC_insl (LAN91C96_DATA_HIGH
, NetRxPackets
[0], packet_length
>> 2);
696 /* read the left over bytes */
697 if (packet_length
& 3) {
700 byte
*tail
= (byte
*) (NetRxPackets
[0] + (packet_length
& ~3));
701 dword leftover
= SMC_inl (LAN91C96_DATA_HIGH
);
703 for (i
= 0; i
< (packet_length
& 3); i
++)
704 *tail
++ = (byte
) (leftover
>> (8 * i
)) & 0xff;
707 PRINTK3 (" Reading %d words and %d byte(s) \n",
708 (packet_length
>> 1), packet_length
& 1);
709 SMC_insw (LAN91C96_DATA_HIGH
, NetRxPackets
[0], packet_length
>> 1);
711 #endif /* USE_32_BIT */
714 printf ("Receiving Packet\n");
715 print_packet (NetRxPackets
[0], packet_length
);
723 while (SMC_inw (LAN91C96_MMU
) & LAN91C96_MMUCR_NO_BUSY
)
724 udelay (1); /* Wait until not busy */
726 /* error or good, tell the card to get rid of this packet */
727 SMC_outw (LAN91C96_MMUCR_RELEASE_RX
, LAN91C96_MMU
);
729 while (SMC_inw (LAN91C96_MMU
) & LAN91C96_MMUCR_NO_BUSY
)
730 udelay (1); /* Wait until not busy */
733 /* Pass the packet up to the protocol layers. */
734 NetReceive (NetRxPackets
[0], packet_length
);
735 return packet_length
;
742 /*----------------------------------------------------
745 * this makes the board clean up everything that it can
746 * and not talk to the outside world. Caused by
747 * an 'ifconfig ethX down'
749 -----------------------------------------------------*/
750 static int smc_close ()
752 PRINTK2 ("%s:smc_close\n", SMC_DEV_NAME
);
754 /* clear everything */
761 static void print_packet (byte
* buf
, int length
)
768 printf ("Packet of length %d \n", length
);
771 remainder
= length
% 16;
773 for (i
= 0; i
< lines
; i
++) {
776 for (cur
= 0; cur
< 8; cur
++) {
781 printf ("%02x%02x ", a
, b
);
785 for (i
= 0; i
< remainder
/ 2; i
++) {
790 printf ("%02x%02x ", a
, b
);
795 #endif /* SMC_DEBUG > 2 */
797 int eth_init (bd_t
* bd
)
799 return (smc_open(bd
));
812 int eth_send (volatile void *packet
, int length
)
814 return smc_send_packet (packet
, length
);
819 /*-------------------------------------------------------------------------
823 * Reset and enable the device, check if the I/O space location
832 *--------------------------------------------------------------------------
834 static int smc_hw_init ()
836 unsigned short status_test
;
838 /* The attribute register of the LAN91C96 is located at address
839 0x0e000000 on the lubbock platform */
840 volatile unsigned *attaddr
= (unsigned *) (0x0e000000);
842 /* first reset, then enable the device. Sequence is critical */
843 attaddr
[LAN91C96_ECOR
] |= LAN91C96_ECOR_SRESET
;
845 attaddr
[LAN91C96_ECOR
] &= ~LAN91C96_ECOR_SRESET
;
846 attaddr
[LAN91C96_ECOR
] |= LAN91C96_ECOR_ENABLE
;
848 /* force 16-bit mode */
849 attaddr
[LAN91C96_ECSR
] &= ~LAN91C96_ECSR_IOIS8
;
852 /* check if the I/O address is correct, the upper byte of the
853 bank select register should read 0x33 */
855 status_test
= SMC_inw (LAN91C96_BANK_SELECT
);
856 if ((status_test
& 0xFF00) != 0x3300) {
857 printf ("Failed to initialize ethernetchip\n");
864 /* smc_get_ethaddr (bd_t * bd)
866 * This checks both the environment and the ROM for an ethernet address. If
867 * found, the environment takes precedence.
870 int smc_get_ethaddr (bd_t
* bd
)
878 char *v_mac
, es
[] = "11:22:33:44:55:66";
883 env_size
= getenv_r ("ethaddr", s_env_mac
, sizeof (s_env_mac
));
884 if (env_size
!= sizeof(es
)) { /* Ignore if env is bad or not set */
885 printf ("\n*** Warning: ethaddr is not set properly, ignoring!!\n");
890 for (reg
= 0; reg
< 6; ++reg
) { /* turn string into mac value */
891 v_env_mac
[reg
] = s
? simple_strtoul (s
, &e
, 16) : 0;
893 s
= (*e
) ? e
+ 1 : e
;
897 rom_valid
= get_rom_mac (v_rom_mac
); /* get ROM mac value if any */
899 if (!env_present
) { /* if NO env */
900 if (rom_valid
) { /* but ROM is valid */
901 v_mac
= (char *)v_rom_mac
;
902 sprintf (s_env_mac
, "%02X:%02X:%02X:%02X:%02X:%02X",
903 v_mac
[0], v_mac
[1], v_mac
[2], v_mac
[3],
905 setenv ("ethaddr", s_env_mac
);
906 } else { /* no env, bad ROM */
907 printf ("\n*** ERROR: ethaddr is NOT set !!\n");
910 } else { /* good env, don't care ROM */
911 v_mac
= (char *)v_env_mac
; /* always use a good env over a ROM */
914 if (env_present
&& rom_valid
) { /* if both env and ROM are good */
915 if (memcmp (v_env_mac
, v_rom_mac
, 6) != 0) {
916 printf ("\nWarning: MAC addresses don't match:\n");
917 printf ("\tHW MAC address: "
918 "%02X:%02X:%02X:%02X:%02X:%02X\n",
919 v_rom_mac
[0], v_rom_mac
[1],
920 v_rom_mac
[2], v_rom_mac
[3],
921 v_rom_mac
[4], v_rom_mac
[5] );
922 printf ("\t\"ethaddr\" value: "
923 "%02X:%02X:%02X:%02X:%02X:%02X\n",
924 v_env_mac
[0], v_env_mac
[1],
925 v_env_mac
[2], v_env_mac
[3],
926 v_env_mac
[4], v_env_mac
[5]) ;
927 debug ("### Set MAC addr from environment\n");
930 memcpy (bd
->bi_enetaddr
, v_mac
, 6); /* update global address to match env (allows env changing) */
931 smc_set_mac_addr ((unsigned char *)v_mac
); /* use old function to update smc default */
932 PRINTK("Using MAC Address %02X:%02X:%02X:%02X:%02X:%02X\n", v_mac
[0], v_mac
[1],
933 v_mac
[2], v_mac
[3], v_mac
[4], v_mac
[5]);
939 * Note, this has omly been tested for the OMAP730 P2.
942 int get_rom_mac (unsigned char *v_rom_mac
)
944 #ifdef HARDCODE_MAC /* used for testing or to supress run time warnings */
945 char hw_mac_addr
[] = { 0x02, 0x80, 0xad, 0x20, 0x31, 0xb8 };
947 memcpy (v_rom_mac
, hw_mac_addr
, 6);
954 v_rom_mac
[i
] = SMC_inb (LAN91C96_IA0
+ i
);