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.
9 ==========================================================================
13 Ethernet device driver for NS DP83902a ethernet controller
15 ==========================================================================
16 ####ECOSGPLCOPYRIGHTBEGIN####
17 -------------------------------------------
18 This file is part of eCos, the Embedded Configurable Operating System.
19 Copyright (C) 1998, 1999, 2000, 2001, 2002 Red Hat, Inc.
21 eCos is free software; you can redistribute it and/or modify it under
22 the terms of the GNU General Public License as published by the Free
23 Software Foundation; either version 2 or (at your option) any later version.
25 eCos is distributed in the hope that it will be useful, but WITHOUT ANY
26 WARRANTY; without even the implied warranty of MERCHANTABILITY or
27 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
30 You should have received a copy of the GNU General Public License along
31 with eCos; if not, write to the Free Software Foundation, Inc.,
32 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
34 As a special exception, if other files instantiate templates or use macros
35 or inline functions from this file, or you compile this file and link it
36 with other works to produce a work based on this file, this file does not
37 by itself cause the resulting work to be covered by the GNU General Public
38 License. However the source code for this file must still be made available
39 in accordance with section (3) of the GNU General Public License.
41 This exception does not invalidate any other reasons why a work based on
42 this file might be covered by the GNU General Public License.
44 Alternative licenses for eCos may be arranged by contacting Red Hat, Inc.
45 at http://sources.redhat.com/ecos/ecos-license/
46 -------------------------------------------
47 ####ECOSGPLCOPYRIGHTEND####
48 ####BSDCOPYRIGHTBEGIN####
50 -------------------------------------------
52 Portions of this software may have been derived from OpenBSD or other sources,
53 and are covered by the appropriate copyright disclaimers included herein.
55 -------------------------------------------
57 ####BSDCOPYRIGHTEND####
58 ==========================================================================
59 #####DESCRIPTIONBEGIN####
62 Contributors: gthomas, jskov, rsandifo
67 FIXME: Will fail if pinged with large packets (1520 bytes)
71 ####DESCRIPTIONEND####
74 ==========================================================================
83 #ifdef CONFIG_DRIVER_NE2000
85 #define mdelay(n) udelay((n)*1000)
86 /* forward definition of function used for the uboot interface */
87 void uboot_push_packet_len(int len);
88 void uboot_push_tx_done(int key, int val);
91 ------------------------------------------------------------------------
95 0 disables all debug output
96 1 for process debug output
97 2 for added data IO output: get_reg, put_reg
98 4 for packet allocation/free output
99 8 for only startup status, so we can tell we're installed OK
101 /*#define DEBUG 0xf*/
105 #define DEBUG_FUNCTION() do { printf("%s\n", __FUNCTION__); } while (0)
106 #define DEBUG_LINE() do { printf("%d\n", __LINE__); } while (0)
107 #define PRINTK(args...) printf(args)
109 #define DEBUG_FUNCTION() do {} while(0)
110 #define DEBUG_LINE() do {} while(0)
111 #define PRINTK(args...)
114 /* NE2000 base header file */
115 #include "ne2000_base.h"
117 /* Basic NE2000 chip support */
120 static dp83902a_priv_data_t nic; /* just one instance of the card supported */
125 dp83902a_priv_data_t *dp = &nic;
131 if (!base) return false; /* No device found */
135 #if defined(NE2000_BASIC_INIT)
137 DP_OUT(base, DP_CR, DP_CR_NODMA | DP_CR_PAGE1); /* Select page 1 */
138 /* Use the address from the serial EEPROM */
139 for (i = 0; i < 6; i++)
140 DP_IN(base, DP_P1_PAR0+i, dp->esa[i]);
141 DP_OUT(base, DP_CR, DP_CR_NODMA | DP_CR_PAGE0); /* Select page 0 */
143 printf("NE2000 - %s ESA: %02x:%02x:%02x:%02x:%02x:%02x\n",
152 #endif /* NE2000_BASIC_INIT */
159 dp83902a_priv_data_t *dp = &nic;
164 DP_OUT(base, DP_CR, DP_CR_PAGE0 | DP_CR_NODMA | DP_CR_STOP); /* Brutal */
165 DP_OUT(base, DP_ISR, 0xFF); /* Clear any pending interrupts */
166 DP_OUT(base, DP_IMR, 0x00); /* Disable all interrupts */
172 This function is called to "start up" the interface. It may be called
173 multiple times, even when the hardware is already running. It will be
174 called whenever something "hardware oriented" changes and should leave
175 the hardware ready to send/receive packets.
178 dp83902a_start(u8 * enaddr)
180 dp83902a_priv_data_t *dp = &nic;
186 DP_OUT(base, DP_CR, DP_CR_PAGE0 | DP_CR_NODMA | DP_CR_STOP); /* Brutal */
187 DP_OUT(base, DP_DCR, DP_DCR_INIT);
188 DP_OUT(base, DP_RBCH, 0); /* Remote byte count */
189 DP_OUT(base, DP_RBCL, 0);
190 DP_OUT(base, DP_RCR, DP_RCR_MON); /* Accept no packets */
191 DP_OUT(base, DP_TCR, DP_TCR_LOCAL); /* Transmitter [virtually] off */
192 DP_OUT(base, DP_TPSR, dp->tx_buf1); /* Transmitter start page */
193 dp->tx1 = dp->tx2 = 0;
194 dp->tx_next = dp->tx_buf1;
195 dp->tx_started = false;
197 DP_OUT(base, DP_PSTART, dp->rx_buf_start); /* Receive ring start page */
198 DP_OUT(base, DP_BNDRY, dp->rx_buf_end-1); /* Receive ring boundary */
199 DP_OUT(base, DP_PSTOP, dp->rx_buf_end); /* Receive ring end page */
200 dp->rx_next = dp->rx_buf_start-1;
202 DP_OUT(base, DP_ISR, 0xFF); /* Clear any pending interrupts */
203 DP_OUT(base, DP_IMR, DP_IMR_All); /* Enable all interrupts */
204 DP_OUT(base, DP_CR, DP_CR_NODMA | DP_CR_PAGE1 | DP_CR_STOP); /* Select page 1 */
205 DP_OUT(base, DP_P1_CURP, dp->rx_buf_start); /* Current page - next free page for Rx */
207 for (i = 0; i < ETHER_ADDR_LEN; i++) {
209 //*((vu_short*)( base + ((DP_P1_PAR0 + i) * 2) + 0x1400)) = enaddr[i];
210 DP_OUT(base, DP_P1_PAR0+i, enaddr[i]);
212 /* Enable and start device */
213 DP_OUT(base, DP_CR, DP_CR_PAGE0 | DP_CR_NODMA | DP_CR_START);
214 DP_OUT(base, DP_TCR, DP_TCR_NORMAL); /* Normal transmit operations */
215 DP_OUT(base, DP_RCR, DP_RCR_AB); /* Accept broadcast, no errors, no multicast */
221 This routine is called to start the transmitter. It is split out from the
222 data handling routine so it may be called either when data becomes first
223 available or when an Tx interrupt occurs
227 dp83902a_start_xmit(int start_page, int len)
229 dp83902a_priv_data_t *dp = (dp83902a_priv_data_t *) &nic;
235 printf("Tx pkt %d len %d\n", start_page, len);
237 printf("TX already started?!?\n");
240 DP_OUT(base, DP_ISR, (DP_ISR_TxP | DP_ISR_TxE));
241 DP_OUT(base, DP_CR, DP_CR_PAGE0 | DP_CR_NODMA | DP_CR_START);
242 DP_OUT(base, DP_TBCL, len & 0xFF);
243 DP_OUT(base, DP_TBCH, len >> 8);
244 DP_OUT(base, DP_TPSR, start_page);
245 DP_OUT(base, DP_CR, DP_CR_NODMA | DP_CR_TXPKT | DP_CR_START);
247 dp->tx_started = true;
251 This routine is called to send data to the hardware. It is known a-priori
252 that there is free buffer space (dp->tx_next).
255 dp83902a_send(u8 *data, int total_len, u32 key)
257 struct dp83902a_priv_data *dp = (struct dp83902a_priv_data *) &nic;
259 int len, start_page, pkt_len, i, isr;
266 len = pkt_len = total_len;
267 if (pkt_len < IEEE_8023_MIN_FRAME) pkt_len = IEEE_8023_MIN_FRAME;
269 start_page = dp->tx_next;
270 if (dp->tx_next == dp->tx_buf1) {
271 dp->tx1 = start_page;
272 dp->tx1_len = pkt_len;
274 dp->tx_next = dp->tx_buf2;
276 dp->tx2 = start_page;
277 dp->tx2_len = pkt_len;
279 dp->tx_next = dp->tx_buf1;
283 printf("TX prep page %d len %d\n", start_page, pkt_len);
286 DP_OUT(base, DP_ISR, DP_ISR_RDC); /* Clear end of DMA */
288 /* Dummy read. The manual sez something slightly different, */
289 /* but the code is extended a bit to do what Hitachi's monitor */
290 /* does (i.e., also read data). */
295 DP_OUT(base, DP_RSAL, 0x100-len);
296 DP_OUT(base, DP_RSAH, (start_page-1) & 0xff);
297 DP_OUT(base, DP_RBCL, len);
298 DP_OUT(base, DP_RBCH, 0);
299 DP_OUT(base, DP_CR, DP_CR_PAGE0 | DP_CR_RDMA | DP_CR_START);
300 DP_IN_DATA(dp->data, tmp);
303 #ifdef CYGHWR_NS_DP83902A_PLF_BROKEN_TX_DMA
304 /* Stall for a bit before continuing to work around random data */
305 /* corruption problems on some platforms. */
306 CYGACC_CALL_IF_DELAY_US(1);
309 /* Send data to device buffer(s) */
310 DP_OUT(base, DP_RSAL, 0);
311 DP_OUT(base, DP_RSAH, start_page);
312 DP_OUT(base, DP_RBCL, pkt_len & 0xFF);
313 DP_OUT(base, DP_RBCH, pkt_len >> 8);
314 DP_OUT(base, DP_CR, DP_CR_WDMA | DP_CR_START);
316 /* Put data into buffer */
318 printf(" sg buf %08lx len %08x\n ", (u32)data, len);
323 printf(" %02x", *data);
324 if (0 == (++dx % 16)) printf("\n ");
327 DP_OUT_DATA(dp->data, *data++);
333 if (total_len < pkt_len) {
335 printf(" + %d bytes of padding\n", pkt_len - total_len);
337 /* Padding to 802.3 length was required */
338 for (i = total_len; i < pkt_len;) {
340 DP_OUT_DATA(dp->data, 0);
344 #ifdef CYGHWR_NS_DP83902A_PLF_BROKEN_TX_DMA
345 /* After last data write, delay for a bit before accessing the */
346 /* device again, or we may get random data corruption in the last */
347 /* datum (on some platforms). */
348 CYGACC_CALL_IF_DELAY_US(1);
351 /* Wait for DMA to complete */
353 DP_IN(base, DP_ISR, isr);
354 } while ((isr & DP_ISR_RDC) == 0);
356 /* Then disable DMA */
357 DP_OUT(base, DP_CR, DP_CR_PAGE0 | DP_CR_NODMA | DP_CR_START);
359 /* Start transmit if not already going */
360 if (!dp->tx_started) {
361 if (start_page == dp->tx1) {
362 dp->tx_int = 1; /* Expecting interrupt from BUF1 */
364 dp->tx_int = 2; /* Expecting interrupt from BUF2 */
366 dp83902a_start_xmit(start_page, pkt_len);
371 This function is called when a packet has been received. It's job is
372 to prepare to unload the packet from the hardware. Once the length of
373 the packet is known, the upper layer of the driver can be told. When
374 the upper layer is ready to unload the packet, the internal function
375 'dp83902a_recv' will be called to actually fetch it from the hardware.
378 dp83902a_RxEvent(void)
380 struct dp83902a_priv_data *dp = (struct dp83902a_priv_data *) &nic;
384 int i, len, pkt, cur;
388 DP_IN(base, DP_RSR, rsr);
390 /* Read incoming packet header */
391 DP_OUT(base, DP_CR, DP_CR_PAGE1 | DP_CR_NODMA | DP_CR_START);
392 DP_IN(base, DP_P1_CURP, cur);
393 DP_OUT(base, DP_P1_CR, DP_CR_PAGE0 | DP_CR_NODMA | DP_CR_START);
394 DP_IN(base, DP_BNDRY, pkt);
397 if (pkt == dp->rx_buf_end)
398 pkt = dp->rx_buf_start;
403 DP_OUT(base, DP_RBCL, sizeof(rcv_hdr));
404 DP_OUT(base, DP_RBCH, 0);
405 DP_OUT(base, DP_RSAL, 0);
406 DP_OUT(base, DP_RSAH, pkt);
407 if (dp->rx_next == pkt) {
408 if (cur == dp->rx_buf_start)
409 DP_OUT(base, DP_BNDRY, dp->rx_buf_end-1);
411 DP_OUT(base, DP_BNDRY, cur-1); /* Update pointer */
415 DP_OUT(base, DP_ISR, DP_ISR_RDC); /* Clear end of DMA */
416 DP_OUT(base, DP_CR, DP_CR_RDMA | DP_CR_START);
417 #ifdef CYGHWR_NS_DP83902A_PLF_BROKEN_RX_DMA
418 CYGACC_CALL_IF_DELAY_US(10);
421 /* read header (get data size)*/
422 for (i = 0; i < sizeof(rcv_hdr);) {
423 DP_IN_DATA(dp->data, rcv_hdr[i++]);
427 printf("rx hdr %02x %02x %02x %02x\n",
428 rcv_hdr[0], rcv_hdr[1], rcv_hdr[2], rcv_hdr[3]);
430 len = ((rcv_hdr[3] << 8) | rcv_hdr[2]) - sizeof(rcv_hdr);
433 uboot_push_packet_len(len);
435 if (rcv_hdr[1] == dp->rx_buf_start)
436 DP_OUT(base, DP_BNDRY, dp->rx_buf_end-1);
438 DP_OUT(base, DP_BNDRY, rcv_hdr[1]-1); /* Update pointer */
443 This function is called as a result of the "eth_drv_recv()" call above.
444 It's job is to actually fetch data for a packet from the hardware once
445 memory buffers have been allocated for the packet. Note that the buffers
446 may come in pieces, using a scatter-gather list. This allows for more
447 efficient processing in the upper layers of the stack.
450 dp83902a_recv(u8 *data, int len)
452 struct dp83902a_priv_data *dp = (struct dp83902a_priv_data *) &nic;
464 printf("Rx packet %d length %d\n", dp->rx_next, len);
467 /* Read incoming packet data */
468 DP_OUT(base, DP_CR, DP_CR_PAGE0 | DP_CR_NODMA | DP_CR_START);
469 DP_OUT(base, DP_RBCL, len & 0xFF);
470 DP_OUT(base, DP_RBCH, len >> 8);
471 DP_OUT(base, DP_RSAL, 4); /* Past header */
472 DP_OUT(base, DP_RSAH, dp->rx_next);
473 DP_OUT(base, DP_ISR, DP_ISR_RDC); /* Clear end of DMA */
474 DP_OUT(base, DP_CR, DP_CR_RDMA | DP_CR_START);
475 #ifdef CYGHWR_NS_DP83902A_PLF_BROKEN_RX_DMA
476 CYGACC_CALL_IF_DELAY_US(10);
480 for (i = 0; i < 1; i++) {
484 printf(" sg buf %08lx len %08x \n", (u32) data, mlen);
488 /* Saved byte from previous loop? */
490 *data++ = saved_char;
498 DP_IN_DATA(dp->data, tmp);
500 printf(" %02x", tmp);
501 if (0 == (++dx % 16)) printf("\n ");
515 dp83902a_TxEvent(void)
517 struct dp83902a_priv_data *dp = (struct dp83902a_priv_data *) &nic;
524 DP_IN(base, DP_TSR, tsr);
525 if (dp->tx_int == 1) {
532 /* Start next packet if one is ready */
533 dp->tx_started = false;
535 dp83902a_start_xmit(dp->tx1, dp->tx1_len);
537 } else if (dp->tx2) {
538 dp83902a_start_xmit(dp->tx2, dp->tx2_len);
543 /* Tell higher level we sent this packet */
544 uboot_push_tx_done(key, 0);
547 /* Read the tally counters to clear them. Called in response to a CNT */
550 dp83902a_ClearCounters(void)
552 struct dp83902a_priv_data *dp = (struct dp83902a_priv_data *) &nic;
556 DP_IN(base, DP_FER, cnt1);
557 DP_IN(base, DP_CER, cnt2);
558 DP_IN(base, DP_MISSED, cnt3);
559 DP_OUT(base, DP_ISR, DP_ISR_CNT);
562 /* Deal with an overflow condition. This code follows the procedure set */
563 /* out in section 7.0 of the datasheet. */
565 dp83902a_Overflow(void)
567 struct dp83902a_priv_data *dp = (struct dp83902a_priv_data *)&nic;
571 /* Issue a stop command and wait 1.6ms for it to complete. */
572 DP_OUT(base, DP_CR, DP_CR_STOP | DP_CR_NODMA);
573 CYGACC_CALL_IF_DELAY_US(1600);
575 /* Clear the remote byte counter registers. */
576 DP_OUT(base, DP_RBCL, 0);
577 DP_OUT(base, DP_RBCH, 0);
579 /* Enter loopback mode while we clear the buffer. */
580 DP_OUT(base, DP_TCR, DP_TCR_LOCAL);
581 DP_OUT(base, DP_CR, DP_CR_START | DP_CR_NODMA);
583 /* Read in as many packets as we can and acknowledge any and receive */
584 /* interrupts. Since the buffer has overflowed, a receive event of */
585 /* some kind will have occured. */
587 DP_OUT(base, DP_ISR, DP_ISR_RxP|DP_ISR_RxE);
589 /* Clear the overflow condition and leave loopback mode. */
590 DP_OUT(base, DP_ISR, DP_ISR_OFLW);
591 DP_OUT(base, DP_TCR, DP_TCR_NORMAL);
593 /* If a transmit command was issued, but no transmit event has occured, */
594 /* restart it here. */
595 DP_IN(base, DP_ISR, isr);
596 if (dp->tx_started && !(isr & (DP_ISR_TxP|DP_ISR_TxE))) {
597 DP_OUT(base, DP_CR, DP_CR_NODMA | DP_CR_TXPKT | DP_CR_START);
604 struct dp83902a_priv_data *dp = (struct dp83902a_priv_data *) &nic;
608 DP_OUT(base, DP_CR, DP_CR_NODMA | DP_CR_PAGE0 | DP_CR_START);
609 DP_IN(base, DP_ISR, isr);
611 /* The CNT interrupt triggers when the MSB of one of the error */
612 /* counters is set. We don't much care about these counters, but */
613 /* we should read their values to reset them. */
614 if (isr & DP_ISR_CNT) {
615 dp83902a_ClearCounters();
617 /* Check for overflow. It's a special case, since there's a */
618 /* particular procedure that must be followed to get back into */
619 /* a running state.a */
620 if (isr & DP_ISR_OFLW) {
623 /* Other kinds of interrupts can be acknowledged simply by */
624 /* clearing the relevant bits of the ISR. Do that now, then */
625 /* handle the interrupts we care about. */
626 DP_OUT(base, DP_ISR, isr); /* Clear set bits */
627 if (!dp->running) break; /* Is this necessary? */
628 /* Check for tx_started on TX event since these may happen */
629 /* spuriously it seems. */
630 if (isr & (DP_ISR_TxP|DP_ISR_TxE) && dp->tx_started) {
633 if (isr & (DP_ISR_RxP|DP_ISR_RxE)) {
637 DP_IN(base, DP_ISR, isr);
641 /* find prom (taken from pc_net_cs.c from Linux) */
645 typedef struct hw_info_t {
651 #define DELAY_OUTPUT 0x01
652 #define HAS_MISC_REG 0x02
653 #define USE_BIG_BUF 0x04
654 #define HAS_IBM_MISC 0x08
655 #define IS_DL10019 0x10
656 #define IS_DL10022 0x20
658 #define USE_SHMEM 0x80 /* autodetected */
660 #define AM79C9XX_HOME_PHY 0x00006B90 /* HomePNA PHY */
661 #define AM79C9XX_ETH_PHY 0x00006B70 /* 10baseT PHY */
662 #define MII_PHYID_REV_MASK 0xfffffff0
663 #define MII_PHYID_REG1 0x02
664 #define MII_PHYID_REG2 0x03
666 static hw_info_t hw_info[] = {
667 { /* Accton EN2212 */ 0x0ff0, 0x00, 0x00, 0xe8, DELAY_OUTPUT },
668 { /* Allied Telesis LA-PCM */ 0x0ff0, 0x00, 0x00, 0xf4, 0 },
669 { /* APEX MultiCard */ 0x03f4, 0x00, 0x20, 0xe5, 0 },
670 { /* ASANTE FriendlyNet */ 0x4910, 0x00, 0x00, 0x94,
671 DELAY_OUTPUT | HAS_IBM_MISC },
672 { /* Danpex EN-6200P2 */ 0x0110, 0x00, 0x40, 0xc7, 0 },
673 { /* DataTrek NetCard */ 0x0ff0, 0x00, 0x20, 0xe8, 0 },
674 { /* Dayna CommuniCard E */ 0x0110, 0x00, 0x80, 0x19, 0 },
675 { /* D-Link DE-650 */ 0x0040, 0x00, 0x80, 0xc8, 0 },
676 { /* EP-210 Ethernet */ 0x0110, 0x00, 0x40, 0x33, 0 },
677 { /* EP4000 Ethernet */ 0x01c0, 0x00, 0x00, 0xb4, 0 },
678 { /* Epson EEN10B */ 0x0ff0, 0x00, 0x00, 0x48,
679 HAS_MISC_REG | HAS_IBM_MISC },
680 { /* ELECOM Laneed LD-CDWA */ 0xb8, 0x08, 0x00, 0x42, 0 },
681 { /* Hypertec Ethernet */ 0x01c0, 0x00, 0x40, 0x4c, 0 },
682 { /* IBM CCAE */ 0x0ff0, 0x08, 0x00, 0x5a,
683 HAS_MISC_REG | HAS_IBM_MISC },
684 { /* IBM CCAE */ 0x0ff0, 0x00, 0x04, 0xac,
685 HAS_MISC_REG | HAS_IBM_MISC },
686 { /* IBM CCAE */ 0x0ff0, 0x00, 0x06, 0x29,
687 HAS_MISC_REG | HAS_IBM_MISC },
688 { /* IBM FME */ 0x0374, 0x08, 0x00, 0x5a,
689 HAS_MISC_REG | HAS_IBM_MISC },
690 { /* IBM FME */ 0x0374, 0x00, 0x04, 0xac,
691 HAS_MISC_REG | HAS_IBM_MISC },
692 { /* Kansai KLA-PCM/T */ 0x0ff0, 0x00, 0x60, 0x87,
693 HAS_MISC_REG | HAS_IBM_MISC },
694 { /* NSC DP83903 */ 0x0374, 0x08, 0x00, 0x17,
695 HAS_MISC_REG | HAS_IBM_MISC },
696 { /* NSC DP83903 */ 0x0374, 0x00, 0xc0, 0xa8,
697 HAS_MISC_REG | HAS_IBM_MISC },
698 { /* NSC DP83903 */ 0x0374, 0x00, 0xa0, 0xb0,
699 HAS_MISC_REG | HAS_IBM_MISC },
700 { /* NSC DP83903 */ 0x0198, 0x00, 0x20, 0xe0,
701 HAS_MISC_REG | HAS_IBM_MISC },
702 { /* I-O DATA PCLA/T */ 0x0ff0, 0x00, 0xa0, 0xb0, 0 },
703 { /* Katron PE-520 */ 0x0110, 0x00, 0x40, 0xf6, 0 },
704 { /* Kingston KNE-PCM/x */ 0x0ff0, 0x00, 0xc0, 0xf0,
705 HAS_MISC_REG | HAS_IBM_MISC },
706 { /* Kingston KNE-PCM/x */ 0x0ff0, 0xe2, 0x0c, 0x0f,
707 HAS_MISC_REG | HAS_IBM_MISC },
708 { /* Kingston KNE-PC2 */ 0x0180, 0x00, 0xc0, 0xf0, 0 },
709 { /* Maxtech PCN2000 */ 0x5000, 0x00, 0x00, 0xe8, 0 },
710 { /* NDC Instant-Link */ 0x003a, 0x00, 0x80, 0xc6, 0 },
711 { /* NE2000 Compatible */ 0x0ff0, 0x00, 0xa0, 0x0c, 0 },
712 { /* Network General Sniffer */ 0x0ff0, 0x00, 0x00, 0x65,
713 HAS_MISC_REG | HAS_IBM_MISC },
714 { /* Panasonic VEL211 */ 0x0ff0, 0x00, 0x80, 0x45,
715 HAS_MISC_REG | HAS_IBM_MISC },
716 { /* PreMax PE-200 */ 0x07f0, 0x00, 0x20, 0xe0, 0 },
717 { /* RPTI EP400 */ 0x0110, 0x00, 0x40, 0x95, 0 },
718 { /* SCM Ethernet */ 0x0ff0, 0x00, 0x20, 0xcb, 0 },
719 { /* Socket EA */ 0x4000, 0x00, 0xc0, 0x1b,
720 DELAY_OUTPUT | HAS_MISC_REG | USE_BIG_BUF },
721 { /* Socket LP-E CF+ */ 0x01c0, 0x00, 0xc0, 0x1b, 0 },
722 { /* SuperSocket RE450T */ 0x0110, 0x00, 0xe0, 0x98, 0 },
723 { /* Volktek NPL-402CT */ 0x0060, 0x00, 0x40, 0x05, 0 },
724 { /* NEC PC-9801N-J12 */ 0x0ff0, 0x00, 0x00, 0x4c, 0 },
725 { /* PCMCIA Technology OEM */ 0x01c8, 0x00, 0xa0, 0x0c, 0 },
726 { /* Qemu */ 0x0, 0x52, 0x54, 0x00, 0 }
729 #define NR_INFO (sizeof(hw_info)/sizeof(hw_info_t))
731 static hw_info_t default_info = { 0, 0, 0, 0, 0 };
735 #define PCNET_CMD 0x00
736 #define PCNET_DATAPORT 0x10 /* NatSemi-defined port window offset. */
737 #define PCNET_RESET 0x1f /* Issue a read to reset, a write to clear. */
738 #define PCNET_MISC 0x18 /* For IBM CCAE and Socket EA cards */
742 /* U-boot specific routines */
743 static u8 *pbuf = NULL;
745 static int pkey = -1;
746 static int initialized=0;
748 void uboot_push_packet_len(int len) {
749 PRINTK("pushed len = %d\n", len);
751 printf("NE2000: packet too big\n");
754 dp83902a_recv(&pbuf[0], len);
756 /*Just pass it to the upper layer*/
757 NetReceive(&pbuf[0], len);
760 void uboot_push_tx_done(int key, int val) {
761 PRINTK("pushed key = %d\n", key);
765 int eth_init(bd_t *bd) {
766 static hw_info_t * r;
769 PRINTK("### eth_init\n");
774 printf("Cannot allocate rx buffer\n");
779 #ifdef CONFIG_DRIVER_NE2000_CCR
781 vu_char *p = (vu_char *) CONFIG_DRIVER_NE2000_CCR;
783 PRINTK("CCR before is %x\n", *p);
784 *p = CONFIG_DRIVER_NE2000_VAL;
785 PRINTK("CCR after is %x\n", *p);
789 nic_base = CONFIG_DRIVER_NE2000_BASE;
790 nic.base = (u8 *) CONFIG_DRIVER_NE2000_BASE;
792 r = get_prom(dev_addr);
796 sprintf (ethaddr, "%02X:%02X:%02X:%02X:%02X:%02X",
797 dev_addr[0], dev_addr[1],
798 dev_addr[2], dev_addr[3],
799 dev_addr[4], dev_addr[5]) ;
800 PRINTK("Set environment from HW MAC addr = \"%s\"\n", ethaddr);
801 setenv ("ethaddr", ethaddr);
803 nic.data = nic.base + DP_DATA;
804 nic.tx_buf1 = START_PG;
805 nic.tx_buf2 = START_PG2;
806 nic.rx_buf_start = RX_START;
807 nic.rx_buf_end = RX_END;
809 if (dp83902a_init() == false)
812 dp83902a_start(dev_addr);
820 PRINTK("### eth_halt\n");
831 int eth_send(volatile void *packet, int length) {
834 PRINTK("### eth_send\n");
838 dp83902a_send((u8 *) packet, length, 666);
839 tmo = get_timer (0) + TOUT * CFG_HZ;
843 PRINTK("Packet sucesfully sent\n");
846 if (get_timer (0) >= tmo) {
847 printf("transmission error (timoeut)\n");