2 Ported to U-Boot by Christian Pellegrin <chri@ascensit.com>
4 Based on sources from the Linux kernel (pcnet_cs.c, 8390.h) and
5 eCOS(if_dp83902a.c, if_dp83902a.h). Both of these 2 wonderful world
6 are GPL, so this is, of course, GPL.
8 ==========================================================================
12 Ethernet device driver for NS DP83902a ethernet controller
14 ==========================================================================
15 ####ECOSGPLCOPYRIGHTBEGIN####
16 -------------------------------------------
17 This file is part of eCos, the Embedded Configurable Operating System.
18 Copyright (C) 1998, 1999, 2000, 2001, 2002 Red Hat, Inc.
20 eCos is free software; you can redistribute it and/or modify it under
21 the terms of the GNU General Public License as published by the Free
22 Software Foundation; either version 2 or (at your option) any later version.
24 eCos is distributed in the hope that it will be useful, but WITHOUT ANY
25 WARRANTY; without even the implied warranty of MERCHANTABILITY or
26 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
29 You should have received a copy of the GNU General Public License along
30 with eCos; if not, write to the Free Software Foundation, Inc.,
31 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
33 As a special exception, if other files instantiate templates or use macros
34 or inline functions from this file, or you compile this file and link it
35 with other works to produce a work based on this file, this file does not
36 by itself cause the resulting work to be covered by the GNU General Public
37 License. However the source code for this file must still be made available
38 in accordance with section (3) of the GNU General Public License.
40 This exception does not invalidate any other reasons why a work based on
41 this file might be covered by the GNU General Public License.
43 Alternative licenses for eCos may be arranged by contacting Red Hat, Inc.
44 at http://sources.redhat.com/ecos/ecos-license/
45 -------------------------------------------
46 ####ECOSGPLCOPYRIGHTEND####
47 ####BSDCOPYRIGHTBEGIN####
49 -------------------------------------------
51 Portions of this software may have been derived from OpenBSD or other sources,
52 and are covered by the appropriate copyright disclaimers included herein.
54 -------------------------------------------
56 ####BSDCOPYRIGHTEND####
57 ==========================================================================
58 #####DESCRIPTIONBEGIN####
61 Contributors: gthomas, jskov, rsandifo
66 FIXME: Will fail if pinged with large packets (1520 bytes)
70 ####DESCRIPTIONEND####
72 ==========================================================================
80 #define mdelay(n) udelay((n)*1000)
81 /* forward definition of function used for the uboot interface */
82 void uboot_push_packet_len(int len);
83 void uboot_push_tx_done(int key, int val);
89 * 0 disables all debug output
90 * 1 for process debug output
91 * 2 for added data IO output: get_reg, put_reg
92 * 4 for packet allocation/free output
93 * 8 for only startup status, so we can tell we're installed OK
102 #define DEBUG_FUNCTION() do { printf("%s\n", __FUNCTION__); } while (0)
103 #define DEBUG_LINE() do { printf("%d\n", __LINE__); } while (0)
104 #define PRINTK(args...) printf(args)
106 #define DEBUG_FUNCTION() do {} while(0)
107 #define DEBUG_LINE() do {} while(0)
108 #define PRINTK(args...)
111 /* NE2000 base header file */
112 #include "ne2000_base.h"
114 #if defined(CONFIG_DRIVER_AX88796L)
115 /* AX88796L support */
118 /* Basic NE2000 chip support */
122 static dp83902a_priv_data_t nic; /* just one instance of the card supported */
127 dp83902a_priv_data_t *dp = &nic;
134 return false; /* No device found */
138 #if defined(NE2000_BASIC_INIT)
139 /* AX88796L doesn't need */
141 DP_OUT(base, DP_CR, DP_CR_NODMA | DP_CR_PAGE1); /* Select page 1 */
142 /* Use the address from the serial EEPROM */
143 for (i = 0; i < 6; i++)
144 DP_IN(base, DP_P1_PAR0+i, dp->esa[i]);
145 DP_OUT(base, DP_CR, DP_CR_NODMA | DP_CR_PAGE0); /* Select page 0 */
147 printf("NE2000 - %s ESA: %02x:%02x:%02x:%02x:%02x:%02x\n",
156 #endif /* NE2000_BASIC_INIT */
163 dp83902a_priv_data_t *dp = &nic;
168 DP_OUT(base, DP_CR, DP_CR_PAGE0 | DP_CR_NODMA | DP_CR_STOP); /* Brutal */
169 DP_OUT(base, DP_ISR, 0xFF); /* Clear any pending interrupts */
170 DP_OUT(base, DP_IMR, 0x00); /* Disable all interrupts */
176 * This function is called to "start up" the interface. It may be called
177 * multiple times, even when the hardware is already running. It will be
178 * called whenever something "hardware oriented" changes and should leave
179 * the hardware ready to send/receive packets.
182 dp83902a_start(u8 * enaddr)
184 dp83902a_priv_data_t *dp = &nic;
190 DP_OUT(base, DP_CR, DP_CR_PAGE0 | DP_CR_NODMA | DP_CR_STOP); /* Brutal */
191 DP_OUT(base, DP_DCR, DP_DCR_INIT);
192 DP_OUT(base, DP_RBCH, 0); /* Remote byte count */
193 DP_OUT(base, DP_RBCL, 0);
194 DP_OUT(base, DP_RCR, DP_RCR_MON); /* Accept no packets */
195 DP_OUT(base, DP_TCR, DP_TCR_LOCAL); /* Transmitter [virtually] off */
196 DP_OUT(base, DP_TPSR, dp->tx_buf1); /* Transmitter start page */
197 dp->tx1 = dp->tx2 = 0;
198 dp->tx_next = dp->tx_buf1;
199 dp->tx_started = false;
201 DP_OUT(base, DP_PSTART, dp->rx_buf_start); /* Receive ring start page */
202 DP_OUT(base, DP_BNDRY, dp->rx_buf_end - 1); /* Receive ring boundary */
203 DP_OUT(base, DP_PSTOP, dp->rx_buf_end); /* Receive ring end page */
204 dp->rx_next = dp->rx_buf_start - 1;
206 DP_OUT(base, DP_ISR, 0xFF); /* Clear any pending interrupts */
207 DP_OUT(base, DP_IMR, DP_IMR_All); /* Enable all interrupts */
208 DP_OUT(base, DP_CR, DP_CR_NODMA | DP_CR_PAGE1 | DP_CR_STOP); /* Select page 1 */
209 DP_OUT(base, DP_P1_CURP, dp->rx_buf_start); /* Current page - next free page for Rx */
211 for (i = 0; i < ETHER_ADDR_LEN; i++) {
213 /*((vu_short*)( base + ((DP_P1_PAR0 + i) * 2) +
214 * 0x1400)) = enaddr[i];*/
215 DP_OUT(base, DP_P1_PAR0+i, enaddr[i]);
217 /* Enable and start device */
218 DP_OUT(base, DP_CR, DP_CR_PAGE0 | DP_CR_NODMA | DP_CR_START);
219 DP_OUT(base, DP_TCR, DP_TCR_NORMAL); /* Normal transmit operations */
220 DP_OUT(base, DP_RCR, DP_RCR_AB); /* Accept broadcast, no errors, no multicast */
225 * This routine is called to start the transmitter. It is split out from the
226 * data handling routine so it may be called either when data becomes first
227 * available or when an Tx interrupt occurs
231 dp83902a_start_xmit(int start_page, int len)
233 dp83902a_priv_data_t *dp = (dp83902a_priv_data_t *) &nic;
239 printf("Tx pkt %d len %d\n", start_page, len);
241 printf("TX already started?!?\n");
244 DP_OUT(base, DP_ISR, (DP_ISR_TxP | DP_ISR_TxE));
245 DP_OUT(base, DP_CR, DP_CR_PAGE0 | DP_CR_NODMA | DP_CR_START);
246 DP_OUT(base, DP_TBCL, len & 0xFF);
247 DP_OUT(base, DP_TBCH, len >> 8);
248 DP_OUT(base, DP_TPSR, start_page);
249 DP_OUT(base, DP_CR, DP_CR_NODMA | DP_CR_TXPKT | DP_CR_START);
251 dp->tx_started = true;
255 * This routine is called to send data to the hardware. It is known a-priori
256 * that there is free buffer space (dp->tx_next).
259 dp83902a_send(u8 *data, int total_len, u32 key)
261 struct dp83902a_priv_data *dp = (struct dp83902a_priv_data *) &nic;
263 int len, start_page, pkt_len, i, isr;
270 len = pkt_len = total_len;
271 if (pkt_len < IEEE_8023_MIN_FRAME)
272 pkt_len = IEEE_8023_MIN_FRAME;
274 start_page = dp->tx_next;
275 if (dp->tx_next == dp->tx_buf1) {
276 dp->tx1 = start_page;
277 dp->tx1_len = pkt_len;
279 dp->tx_next = dp->tx_buf2;
281 dp->tx2 = start_page;
282 dp->tx2_len = pkt_len;
284 dp->tx_next = dp->tx_buf1;
288 printf("TX prep page %d len %d\n", start_page, pkt_len);
291 DP_OUT(base, DP_ISR, DP_ISR_RDC); /* Clear end of DMA */
294 * Dummy read. The manual sez something slightly different,
295 * but the code is extended a bit to do what Hitachi's monitor
296 * does (i.e., also read data).
302 DP_OUT(base, DP_RSAL, 0x100 - len);
303 DP_OUT(base, DP_RSAH, (start_page - 1) & 0xff);
304 DP_OUT(base, DP_RBCL, len);
305 DP_OUT(base, DP_RBCH, 0);
306 DP_OUT(base, DP_CR, DP_CR_PAGE0 | DP_CR_RDMA | DP_CR_START);
307 DP_IN_DATA(dp->data, tmp);
310 #ifdef CYGHWR_NS_DP83902A_PLF_BROKEN_TX_DMA
312 * Stall for a bit before continuing to work around random data
313 * corruption problems on some platforms.
315 CYGACC_CALL_IF_DELAY_US(1);
318 /* Send data to device buffer(s) */
319 DP_OUT(base, DP_RSAL, 0);
320 DP_OUT(base, DP_RSAH, start_page);
321 DP_OUT(base, DP_RBCL, pkt_len & 0xFF);
322 DP_OUT(base, DP_RBCH, pkt_len >> 8);
323 DP_OUT(base, DP_CR, DP_CR_WDMA | DP_CR_START);
325 /* Put data into buffer */
327 printf(" sg buf %08lx len %08x\n ", (u32)data, len);
332 printf(" %02x", *data);
333 if (0 == (++dx % 16)) printf("\n ");
336 DP_OUT_DATA(dp->data, *data++);
342 if (total_len < pkt_len) {
344 printf(" + %d bytes of padding\n", pkt_len - total_len);
346 /* Padding to 802.3 length was required */
347 for (i = total_len; i < pkt_len;) {
349 DP_OUT_DATA(dp->data, 0);
353 #ifdef CYGHWR_NS_DP83902A_PLF_BROKEN_TX_DMA
355 * After last data write, delay for a bit before accessing the
356 * device again, or we may get random data corruption in the last
357 * datum (on some platforms).
359 CYGACC_CALL_IF_DELAY_US(1);
362 /* Wait for DMA to complete */
364 DP_IN(base, DP_ISR, isr);
365 } while ((isr & DP_ISR_RDC) == 0);
367 /* Then disable DMA */
368 DP_OUT(base, DP_CR, DP_CR_PAGE0 | DP_CR_NODMA | DP_CR_START);
370 /* Start transmit if not already going */
371 if (!dp->tx_started) {
372 if (start_page == dp->tx1) {
373 dp->tx_int = 1; /* Expecting interrupt from BUF1 */
375 dp->tx_int = 2; /* Expecting interrupt from BUF2 */
377 dp83902a_start_xmit(start_page, pkt_len);
382 * This function is called when a packet has been received. It's job is
383 * to prepare to unload the packet from the hardware. Once the length of
384 * the packet is known, the upper layer of the driver can be told. When
385 * the upper layer is ready to unload the packet, the internal function
386 * 'dp83902a_recv' will be called to actually fetch it from the hardware.
389 dp83902a_RxEvent(void)
391 struct dp83902a_priv_data *dp = (struct dp83902a_priv_data *) &nic;
395 int i, len, pkt, cur;
399 DP_IN(base, DP_RSR, rsr);
401 /* Read incoming packet header */
402 DP_OUT(base, DP_CR, DP_CR_PAGE1 | DP_CR_NODMA | DP_CR_START);
403 DP_IN(base, DP_P1_CURP, cur);
404 DP_OUT(base, DP_P1_CR, DP_CR_PAGE0 | DP_CR_NODMA | DP_CR_START);
405 DP_IN(base, DP_BNDRY, pkt);
408 if (pkt == dp->rx_buf_end)
409 pkt = dp->rx_buf_start;
414 DP_OUT(base, DP_RBCL, sizeof(rcv_hdr));
415 DP_OUT(base, DP_RBCH, 0);
416 DP_OUT(base, DP_RSAL, 0);
417 DP_OUT(base, DP_RSAH, pkt);
418 if (dp->rx_next == pkt) {
419 if (cur == dp->rx_buf_start)
420 DP_OUT(base, DP_BNDRY, dp->rx_buf_end - 1);
422 DP_OUT(base, DP_BNDRY, cur - 1); /* Update pointer */
426 DP_OUT(base, DP_ISR, DP_ISR_RDC); /* Clear end of DMA */
427 DP_OUT(base, DP_CR, DP_CR_RDMA | DP_CR_START);
428 #ifdef CYGHWR_NS_DP83902A_PLF_BROKEN_RX_DMA
429 CYGACC_CALL_IF_DELAY_US(10);
432 /* read header (get data size)*/
433 for (i = 0; i < sizeof(rcv_hdr);) {
434 DP_IN_DATA(dp->data, rcv_hdr[i++]);
438 printf("rx hdr %02x %02x %02x %02x\n",
439 rcv_hdr[0], rcv_hdr[1], rcv_hdr[2], rcv_hdr[3]);
441 len = ((rcv_hdr[3] << 8) | rcv_hdr[2]) - sizeof(rcv_hdr);
444 uboot_push_packet_len(len);
446 if (rcv_hdr[1] == dp->rx_buf_start)
447 DP_OUT(base, DP_BNDRY, dp->rx_buf_end - 1);
449 DP_OUT(base, DP_BNDRY, rcv_hdr[1] - 1); /* Update pointer */
454 * This function is called as a result of the "eth_drv_recv()" call above.
455 * It's job is to actually fetch data for a packet from the hardware once
456 * memory buffers have been allocated for the packet. Note that the buffers
457 * may come in pieces, using a scatter-gather list. This allows for more
458 * efficient processing in the upper layers of the stack.
461 dp83902a_recv(u8 *data, int len)
463 struct dp83902a_priv_data *dp = (struct dp83902a_priv_data *) &nic;
475 printf("Rx packet %d length %d\n", dp->rx_next, len);
478 /* Read incoming packet data */
479 DP_OUT(base, DP_CR, DP_CR_PAGE0 | DP_CR_NODMA | DP_CR_START);
480 DP_OUT(base, DP_RBCL, len & 0xFF);
481 DP_OUT(base, DP_RBCH, len >> 8);
482 DP_OUT(base, DP_RSAL, 4); /* Past header */
483 DP_OUT(base, DP_RSAH, dp->rx_next);
484 DP_OUT(base, DP_ISR, DP_ISR_RDC); /* Clear end of DMA */
485 DP_OUT(base, DP_CR, DP_CR_RDMA | DP_CR_START);
486 #ifdef CYGHWR_NS_DP83902A_PLF_BROKEN_RX_DMA
487 CYGACC_CALL_IF_DELAY_US(10);
491 for (i = 0; i < 1; i++) {
495 printf(" sg buf %08lx len %08x \n", (u32) data, mlen);
499 /* Saved byte from previous loop? */
501 *data++ = saved_char;
509 DP_IN_DATA(dp->data, tmp);
511 printf(" %02x", tmp);
512 if (0 == (++dx % 16)) printf("\n ");
526 dp83902a_TxEvent(void)
528 struct dp83902a_priv_data *dp = (struct dp83902a_priv_data *) &nic;
535 DP_IN(base, DP_TSR, tsr);
536 if (dp->tx_int == 1) {
543 /* Start next packet if one is ready */
544 dp->tx_started = false;
546 dp83902a_start_xmit(dp->tx1, dp->tx1_len);
548 } else if (dp->tx2) {
549 dp83902a_start_xmit(dp->tx2, dp->tx2_len);
554 /* Tell higher level we sent this packet */
555 uboot_push_tx_done(key, 0);
559 * Read the tally counters to clear them. Called in response to a CNT
563 dp83902a_ClearCounters(void)
565 struct dp83902a_priv_data *dp = (struct dp83902a_priv_data *) &nic;
569 DP_IN(base, DP_FER, cnt1);
570 DP_IN(base, DP_CER, cnt2);
571 DP_IN(base, DP_MISSED, cnt3);
572 DP_OUT(base, DP_ISR, DP_ISR_CNT);
576 * Deal with an overflow condition. This code follows the procedure set
577 * out in section 7.0 of the datasheet.
580 dp83902a_Overflow(void)
582 struct dp83902a_priv_data *dp = (struct dp83902a_priv_data *)&nic;
586 /* Issue a stop command and wait 1.6ms for it to complete. */
587 DP_OUT(base, DP_CR, DP_CR_STOP | DP_CR_NODMA);
588 CYGACC_CALL_IF_DELAY_US(1600);
590 /* Clear the remote byte counter registers. */
591 DP_OUT(base, DP_RBCL, 0);
592 DP_OUT(base, DP_RBCH, 0);
594 /* Enter loopback mode while we clear the buffer. */
595 DP_OUT(base, DP_TCR, DP_TCR_LOCAL);
596 DP_OUT(base, DP_CR, DP_CR_START | DP_CR_NODMA);
599 * Read in as many packets as we can and acknowledge any and receive
600 * interrupts. Since the buffer has overflowed, a receive event of
601 * some kind will have occured.
604 DP_OUT(base, DP_ISR, DP_ISR_RxP|DP_ISR_RxE);
606 /* Clear the overflow condition and leave loopback mode. */
607 DP_OUT(base, DP_ISR, DP_ISR_OFLW);
608 DP_OUT(base, DP_TCR, DP_TCR_NORMAL);
611 * If a transmit command was issued, but no transmit event has occured,
614 DP_IN(base, DP_ISR, isr);
615 if (dp->tx_started && !(isr & (DP_ISR_TxP|DP_ISR_TxE))) {
616 DP_OUT(base, DP_CR, DP_CR_NODMA | DP_CR_TXPKT | DP_CR_START);
623 struct dp83902a_priv_data *dp = (struct dp83902a_priv_data *) &nic;
627 DP_OUT(base, DP_CR, DP_CR_NODMA | DP_CR_PAGE0 | DP_CR_START);
628 DP_IN(base, DP_ISR, isr);
631 * The CNT interrupt triggers when the MSB of one of the error
632 * counters is set. We don't much care about these counters, but
633 * we should read their values to reset them.
635 if (isr & DP_ISR_CNT) {
636 dp83902a_ClearCounters();
639 * Check for overflow. It's a special case, since there's a
640 * particular procedure that must be followed to get back into
643 if (isr & DP_ISR_OFLW) {
647 * Other kinds of interrupts can be acknowledged simply by
648 * clearing the relevant bits of the ISR. Do that now, then
649 * handle the interrupts we care about.
651 DP_OUT(base, DP_ISR, isr); /* Clear set bits */
652 if (!dp->running) break; /* Is this necessary? */
654 * Check for tx_started on TX event since these may happen
655 * spuriously it seems.
657 if (isr & (DP_ISR_TxP|DP_ISR_TxE) && dp->tx_started) {
660 if (isr & (DP_ISR_RxP|DP_ISR_RxE)) {
664 DP_IN(base, DP_ISR, isr);
668 /* find prom (taken from pc_net_cs.c from Linux) */
672 typedef struct hw_info_t {
678 #define DELAY_OUTPUT 0x01
679 #define HAS_MISC_REG 0x02
680 #define USE_BIG_BUF 0x04
681 #define HAS_IBM_MISC 0x08
682 #define IS_DL10019 0x10
683 #define IS_DL10022 0x20
685 #define USE_SHMEM 0x80 /* autodetected */
687 #define AM79C9XX_HOME_PHY 0x00006B90 /* HomePNA PHY */
688 #define AM79C9XX_ETH_PHY 0x00006B70 /* 10baseT PHY */
689 #define MII_PHYID_REV_MASK 0xfffffff0
690 #define MII_PHYID_REG1 0x02
691 #define MII_PHYID_REG2 0x03
693 static hw_info_t hw_info[] = {
694 { /* Accton EN2212 */ 0x0ff0, 0x00, 0x00, 0xe8, DELAY_OUTPUT },
695 { /* Allied Telesis LA-PCM */ 0x0ff0, 0x00, 0x00, 0xf4, 0 },
696 { /* APEX MultiCard */ 0x03f4, 0x00, 0x20, 0xe5, 0 },
697 { /* ASANTE FriendlyNet */ 0x4910, 0x00, 0x00, 0x94,
698 DELAY_OUTPUT | HAS_IBM_MISC },
699 { /* Danpex EN-6200P2 */ 0x0110, 0x00, 0x40, 0xc7, 0 },
700 { /* DataTrek NetCard */ 0x0ff0, 0x00, 0x20, 0xe8, 0 },
701 { /* Dayna CommuniCard E */ 0x0110, 0x00, 0x80, 0x19, 0 },
702 { /* D-Link DE-650 */ 0x0040, 0x00, 0x80, 0xc8, 0 },
703 { /* EP-210 Ethernet */ 0x0110, 0x00, 0x40, 0x33, 0 },
704 { /* EP4000 Ethernet */ 0x01c0, 0x00, 0x00, 0xb4, 0 },
705 { /* Epson EEN10B */ 0x0ff0, 0x00, 0x00, 0x48,
706 HAS_MISC_REG | HAS_IBM_MISC },
707 { /* ELECOM Laneed LD-CDWA */ 0xb8, 0x08, 0x00, 0x42, 0 },
708 { /* Hypertec Ethernet */ 0x01c0, 0x00, 0x40, 0x4c, 0 },
709 { /* IBM CCAE */ 0x0ff0, 0x08, 0x00, 0x5a,
710 HAS_MISC_REG | HAS_IBM_MISC },
711 { /* IBM CCAE */ 0x0ff0, 0x00, 0x04, 0xac,
712 HAS_MISC_REG | HAS_IBM_MISC },
713 { /* IBM CCAE */ 0x0ff0, 0x00, 0x06, 0x29,
714 HAS_MISC_REG | HAS_IBM_MISC },
715 { /* IBM FME */ 0x0374, 0x08, 0x00, 0x5a,
716 HAS_MISC_REG | HAS_IBM_MISC },
717 { /* IBM FME */ 0x0374, 0x00, 0x04, 0xac,
718 HAS_MISC_REG | HAS_IBM_MISC },
719 { /* Kansai KLA-PCM/T */ 0x0ff0, 0x00, 0x60, 0x87,
720 HAS_MISC_REG | HAS_IBM_MISC },
721 { /* NSC DP83903 */ 0x0374, 0x08, 0x00, 0x17,
722 HAS_MISC_REG | HAS_IBM_MISC },
723 { /* NSC DP83903 */ 0x0374, 0x00, 0xc0, 0xa8,
724 HAS_MISC_REG | HAS_IBM_MISC },
725 { /* NSC DP83903 */ 0x0374, 0x00, 0xa0, 0xb0,
726 HAS_MISC_REG | HAS_IBM_MISC },
727 { /* NSC DP83903 */ 0x0198, 0x00, 0x20, 0xe0,
728 HAS_MISC_REG | HAS_IBM_MISC },
729 { /* I-O DATA PCLA/T */ 0x0ff0, 0x00, 0xa0, 0xb0, 0 },
730 { /* Katron PE-520 */ 0x0110, 0x00, 0x40, 0xf6, 0 },
731 { /* Kingston KNE-PCM/x */ 0x0ff0, 0x00, 0xc0, 0xf0,
732 HAS_MISC_REG | HAS_IBM_MISC },
733 { /* Kingston KNE-PCM/x */ 0x0ff0, 0xe2, 0x0c, 0x0f,
734 HAS_MISC_REG | HAS_IBM_MISC },
735 { /* Kingston KNE-PC2 */ 0x0180, 0x00, 0xc0, 0xf0, 0 },
736 { /* Maxtech PCN2000 */ 0x5000, 0x00, 0x00, 0xe8, 0 },
737 { /* NDC Instant-Link */ 0x003a, 0x00, 0x80, 0xc6, 0 },
738 { /* NE2000 Compatible */ 0x0ff0, 0x00, 0xa0, 0x0c, 0 },
739 { /* Network General Sniffer */ 0x0ff0, 0x00, 0x00, 0x65,
740 HAS_MISC_REG | HAS_IBM_MISC },
741 { /* Panasonic VEL211 */ 0x0ff0, 0x00, 0x80, 0x45,
742 HAS_MISC_REG | HAS_IBM_MISC },
743 { /* PreMax PE-200 */ 0x07f0, 0x00, 0x20, 0xe0, 0 },
744 { /* RPTI EP400 */ 0x0110, 0x00, 0x40, 0x95, 0 },
745 { /* SCM Ethernet */ 0x0ff0, 0x00, 0x20, 0xcb, 0 },
746 { /* Socket EA */ 0x4000, 0x00, 0xc0, 0x1b,
747 DELAY_OUTPUT | HAS_MISC_REG | USE_BIG_BUF },
748 { /* Socket LP-E CF+ */ 0x01c0, 0x00, 0xc0, 0x1b, 0 },
749 { /* SuperSocket RE450T */ 0x0110, 0x00, 0xe0, 0x98, 0 },
750 { /* Volktek NPL-402CT */ 0x0060, 0x00, 0x40, 0x05, 0 },
751 { /* NEC PC-9801N-J12 */ 0x0ff0, 0x00, 0x00, 0x4c, 0 },
752 { /* PCMCIA Technology OEM */ 0x01c8, 0x00, 0xa0, 0x0c, 0 },
753 { /* Qemu */ 0x0, 0x52, 0x54, 0x00, 0 }
756 #define NR_INFO (sizeof(hw_info)/sizeof(hw_info_t))
758 static hw_info_t default_info = { 0, 0, 0, 0, 0 };
762 #define PCNET_CMD 0x00
763 #define PCNET_DATAPORT 0x10 /* NatSemi-defined port window offset. */
764 #define PCNET_RESET 0x1f /* Issue a read to reset, a write to clear. */
765 #define PCNET_MISC 0x18 /* For IBM CCAE and Socket EA cards */
769 /* U-boot specific routines */
770 static u8 *pbuf = NULL;
772 static int pkey = -1;
773 static int initialized = 0;
775 void uboot_push_packet_len(int len) {
776 PRINTK("pushed len = %d\n", len);
778 printf("NE2000: packet too big\n");
781 dp83902a_recv(&pbuf[0], len);
783 /*Just pass it to the upper layer*/
784 NetReceive(&pbuf[0], len);
787 void uboot_push_tx_done(int key, int val) {
788 PRINTK("pushed key = %d\n", key);
792 int eth_init(bd_t *bd) {
793 static hw_info_t * r;
796 PRINTK("### eth_init\n");
801 printf("Cannot allocate rx buffer\n");
806 #ifdef CONFIG_DRIVER_NE2000_CCR
808 vu_char *p = (vu_char *) CONFIG_DRIVER_NE2000_CCR;
810 PRINTK("CCR before is %x\n", *p);
811 *p = CONFIG_DRIVER_NE2000_VAL;
812 PRINTK("CCR after is %x\n", *p);
816 nic_base = CONFIG_DRIVER_NE2000_BASE;
817 nic.base = (u8 *) CONFIG_DRIVER_NE2000_BASE;
819 r = get_prom(dev_addr);
823 sprintf (ethaddr, "%02X:%02X:%02X:%02X:%02X:%02X",
824 dev_addr[0], dev_addr[1],
825 dev_addr[2], dev_addr[3],
826 dev_addr[4], dev_addr[5]) ;
827 PRINTK("Set environment from HW MAC addr = \"%s\"\n", ethaddr);
828 setenv ("ethaddr", ethaddr);
830 nic.data = nic.base + DP_DATA;
831 nic.tx_buf1 = START_PG;
832 nic.tx_buf2 = START_PG2;
833 nic.rx_buf_start = RX_START;
834 nic.rx_buf_end = RX_END;
836 if (dp83902a_init() == false)
839 dp83902a_start(dev_addr);
847 PRINTK("### eth_halt\n");
858 int eth_send(volatile void *packet, int length) {
861 PRINTK("### eth_send\n");
865 dp83902a_send((u8 *) packet, length, 666);
866 tmo = get_timer (0) + TOUT * CFG_HZ;
870 PRINTK("Packet sucesfully sent\n");
873 if (get_timer (0) >= tmo) {
874 printf("transmission error (timoeut)\n");