3 * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
5 * SPDX-License-Identifier: GPL-2.0+
16 DECLARE_GLOBAL_DATA_PTR;
20 #if defined(CONFIG_CMD_NET) && \
21 (defined(FEC_ENET) || defined(CONFIG_ETHER_ON_FEC1) || defined(CONFIG_ETHER_ON_FEC2))
23 /* compatibility test, if only FEC_ENET defined assume ETHER on FEC1 */
24 #if defined(FEC_ENET) && !defined(CONFIG_ETHER_ON_FEC1) && !defined(CONFIG_ETHER_ON_FEC2)
25 #define CONFIG_ETHER_ON_FEC1 1
28 /* define WANT_MII when MII support is required */
29 #if defined(CONFIG_SYS_DISCOVER_PHY) || defined(CONFIG_FEC1_PHY) || defined(CONFIG_FEC2_PHY)
38 #if !(defined(CONFIG_MII) || defined(CONFIG_CMD_MII))
39 #error "CONFIG_MII has to be defined!"
44 #if defined(CONFIG_RMII) && !defined(WANT_MII)
45 #error RMII support is unusable without a working PHY.
48 #ifdef CONFIG_SYS_DISCOVER_PHY
49 static int mii_discover_phy(struct eth_device *dev);
52 int fec8xx_miiphy_read(struct mii_dev *bus, int addr, int devad, int reg);
53 int fec8xx_miiphy_write(struct mii_dev *bus, int addr, int devad, int reg,
56 static struct ether_fcc_info_s
65 #if defined(CONFIG_ETHER_ON_FEC1)
68 offsetof(immap_t, im_cpm.cp_fec1),
69 #if defined(CONFIG_FEC1_PHY)
79 #if defined(CONFIG_ETHER_ON_FEC2)
82 offsetof(immap_t, im_cpm.cp_fec2),
83 #if defined(CONFIG_FEC2_PHY)
94 /* Ethernet Transmit and Receive Buffers */
95 #define DBUF_LENGTH 1520
101 #define PKT_MAXBUF_SIZE 1518
102 #define PKT_MINBUF_SIZE 64
103 #define PKT_MAXBLR_SIZE 1520
106 static char txbuf[DBUF_LENGTH] __attribute__ ((aligned(8)));
108 #error txbuf must be aligned.
111 static uint rxIdx; /* index of the current RX buffer */
112 static uint txIdx; /* index of the current TX buffer */
115 * FEC Ethernet Tx and Rx buffer descriptors allocated at the
116 * immr->udata_bd address on Dual-Port RAM
117 * Provide for Double Buffering
120 typedef volatile struct CommonBufferDescriptor {
121 cbd_t rxbd[PKTBUFSRX]; /* Rx BD */
122 cbd_t txbd[TX_BUF_CNT]; /* Tx BD */
125 static RTXBD *rtx = NULL;
127 static int fec_send(struct eth_device *dev, void *packet, int length);
128 static int fec_recv(struct eth_device* dev);
129 static int fec_init(struct eth_device* dev, bd_t * bd);
130 static void fec_halt(struct eth_device* dev);
131 #if defined(CONFIG_MII) || defined(CONFIG_CMD_MII)
132 static void __mii_init(void);
135 int fec_initialize(bd_t *bis)
137 struct eth_device* dev;
138 struct ether_fcc_info_s *efis;
141 for (i = 0; i < ARRAY_SIZE(ether_fcc_info); i++) {
143 dev = malloc(sizeof(*dev));
147 memset(dev, 0, sizeof(*dev));
149 /* for FEC1 make sure that the name of the interface is the same
150 as the old one for compatibility reasons */
152 strcpy(dev->name, "FEC");
154 sprintf (dev->name, "FEC%d",
155 ether_fcc_info[i].ether_index + 1);
158 efis = ðer_fcc_info[i];
161 * reset actual phy addr
163 efis->actual_phy_addr = -1;
166 dev->init = fec_init;
167 dev->halt = fec_halt;
168 dev->send = fec_send;
169 dev->recv = fec_recv;
173 #if defined(CONFIG_MII) || defined(CONFIG_CMD_MII)
175 struct mii_dev *mdiodev = mdio_alloc();
178 strncpy(mdiodev->name, dev->name, MDIO_NAME_LEN);
179 mdiodev->read = fec8xx_miiphy_read;
180 mdiodev->write = fec8xx_miiphy_write;
182 retval = mdio_register(mdiodev);
190 static int fec_send(struct eth_device *dev, void *packet, int length)
193 struct ether_fcc_info_s *efis = dev->priv;
194 volatile fec_t *fecp = (volatile fec_t *)(CONFIG_SYS_IMMR + efis->fecp_offset);
200 while ((rtx->txbd[txIdx].cbd_sc & BD_ENET_TX_READY) && (j<TOUT_LOOP)) {
205 printf("TX not ready\n");
208 rtx->txbd[txIdx].cbd_bufaddr = (uint)packet;
209 rtx->txbd[txIdx].cbd_datlen = length;
210 rtx->txbd[txIdx].cbd_sc |= BD_ENET_TX_READY | BD_ENET_TX_LAST;
213 /* Activate transmit Buffer Descriptor polling */
214 fecp->fec_x_des_active = 0x01000000; /* Descriptor polling active */
217 while ((rtx->txbd[txIdx].cbd_sc & BD_ENET_TX_READY) && (j<TOUT_LOOP)) {
222 printf("TX timeout\n");
225 printf("%s[%d] %s: cycles: %d status: %x retry cnt: %d\n",
226 __FILE__,__LINE__,__FUNCTION__,j,rtx->txbd[txIdx].cbd_sc,
227 (rtx->txbd[txIdx].cbd_sc & 0x003C)>>2);
229 /* return only status bits */;
230 rc = (rtx->txbd[txIdx].cbd_sc & BD_ENET_TX_STATS);
232 txIdx = (txIdx + 1) % TX_BUF_CNT;
237 static int fec_recv (struct eth_device *dev)
239 struct ether_fcc_info_s *efis = dev->priv;
240 volatile fec_t *fecp =
241 (volatile fec_t *) (CONFIG_SYS_IMMR + efis->fecp_offset);
245 /* section 16.9.23.2 */
246 if (rtx->rxbd[rxIdx].cbd_sc & BD_ENET_RX_EMPTY) {
248 break; /* nothing received - leave for() loop */
251 length = rtx->rxbd[rxIdx].cbd_datlen;
253 if (rtx->rxbd[rxIdx].cbd_sc & 0x003f) {
255 printf ("%s[%d] err: %x\n",
256 __FUNCTION__, __LINE__,
257 rtx->rxbd[rxIdx].cbd_sc);
260 uchar *rx = net_rx_packets[rxIdx];
264 #if defined(CONFIG_CMD_CDP)
265 if ((rx[0] & 1) != 0 &&
266 memcmp((uchar *)rx, net_bcast_ethaddr, 6) != 0 &&
267 !is_cdp_packet((uchar *)rx))
271 * Pass the packet up to the protocol layers.
274 net_process_received_packet(rx, length);
277 /* Give the buffer back to the FEC. */
278 rtx->rxbd[rxIdx].cbd_datlen = 0;
280 /* wrap around buffer index when necessary */
281 if ((rxIdx + 1) >= PKTBUFSRX) {
282 rtx->rxbd[PKTBUFSRX - 1].cbd_sc =
283 (BD_ENET_RX_WRAP | BD_ENET_RX_EMPTY);
286 rtx->rxbd[rxIdx].cbd_sc = BD_ENET_RX_EMPTY;
292 /* Try to fill Buffer Descriptors */
293 fecp->fec_r_des_active = 0x01000000; /* Descriptor polling active */
299 /**************************************************************
301 * FEC Ethernet Initialization Routine
303 *************************************************************/
305 #define FEC_ECNTRL_PINMUX 0x00000004
306 #define FEC_ECNTRL_ETHER_EN 0x00000002
307 #define FEC_ECNTRL_RESET 0x00000001
309 #define FEC_RCNTRL_BC_REJ 0x00000010
310 #define FEC_RCNTRL_PROM 0x00000008
311 #define FEC_RCNTRL_MII_MODE 0x00000004
312 #define FEC_RCNTRL_DRT 0x00000002
313 #define FEC_RCNTRL_LOOP 0x00000001
315 #define FEC_TCNTRL_FDEN 0x00000004
316 #define FEC_TCNTRL_HBC 0x00000002
317 #define FEC_TCNTRL_GTS 0x00000001
319 #define FEC_RESET_DELAY 50
321 #if defined(CONFIG_RMII)
323 static inline void fec_10Mbps(struct eth_device *dev)
325 struct ether_fcc_info_s *efis = dev->priv;
326 int fecidx = efis->ether_index;
327 uint mask = (fecidx == 0) ? 0x0000010 : 0x0000008;
329 if ((unsigned int)fecidx >= 2)
332 ((volatile immap_t *)CONFIG_SYS_IMMR)->im_cpm.cp_cptr |= mask;
335 static inline void fec_100Mbps(struct eth_device *dev)
337 struct ether_fcc_info_s *efis = dev->priv;
338 int fecidx = efis->ether_index;
339 uint mask = (fecidx == 0) ? 0x0000010 : 0x0000008;
341 if ((unsigned int)fecidx >= 2)
344 ((volatile immap_t *)CONFIG_SYS_IMMR)->im_cpm.cp_cptr &= ~mask;
349 static inline void fec_full_duplex(struct eth_device *dev)
351 struct ether_fcc_info_s *efis = dev->priv;
352 volatile fec_t *fecp = (volatile fec_t *)(CONFIG_SYS_IMMR + efis->fecp_offset);
354 fecp->fec_r_cntrl &= ~FEC_RCNTRL_DRT;
355 fecp->fec_x_cntrl |= FEC_TCNTRL_FDEN; /* FD enable */
358 static inline void fec_half_duplex(struct eth_device *dev)
360 struct ether_fcc_info_s *efis = dev->priv;
361 volatile fec_t *fecp = (volatile fec_t *)(CONFIG_SYS_IMMR + efis->fecp_offset);
363 fecp->fec_r_cntrl |= FEC_RCNTRL_DRT;
364 fecp->fec_x_cntrl &= ~FEC_TCNTRL_FDEN; /* FD disable */
367 static void fec_pin_init(int fecidx)
370 volatile immap_t *immr = (immap_t *) CONFIG_SYS_IMMR;
373 * Set MII speed to 2.5 MHz or slightly below.
375 * According to the MPC860T (Rev. D) Fast ethernet controller user
377 * the MII management interface clock must be less than or equal
379 * This MDC frequency is equal to system clock / (2 * MII_SPEED).
380 * Then MII_SPEED = system_clock / 2 * 2,5 MHz.
382 * All MII configuration is done via FEC1 registers:
384 immr->im_cpm.cp_fec1.fec_mii_speed = ((bd->bi_intfreq + 4999999) / 5000000) << 1;
386 #if defined(CONFIG_MPC885_FAMILY) && defined(WANT_MII)
387 /* use MDC for MII */
388 immr->im_ioport.iop_pdpar |= 0x0080;
389 immr->im_ioport.iop_pddir &= ~0x0080;
393 #if defined(CONFIG_ETHER_ON_FEC1)
395 #if defined(CONFIG_MPC885_FAMILY) /* MPC87x/88x have got 2 FECs and different pinout */
397 #if !defined(CONFIG_RMII)
399 immr->im_ioport.iop_papar |= 0xf830;
400 immr->im_ioport.iop_padir |= 0x0830;
401 immr->im_ioport.iop_padir &= ~0xf000;
403 immr->im_cpm.cp_pbpar |= 0x00001001;
404 immr->im_cpm.cp_pbdir &= ~0x00001001;
406 immr->im_ioport.iop_pcpar |= 0x000c;
407 immr->im_ioport.iop_pcdir &= ~0x000c;
409 immr->im_cpm.cp_pepar |= 0x00000003;
410 immr->im_cpm.cp_pedir |= 0x00000003;
411 immr->im_cpm.cp_peso &= ~0x00000003;
413 immr->im_cpm.cp_cptr &= ~0x00000100;
417 #if !defined(CONFIG_FEC1_PHY_NORXERR)
418 immr->im_ioport.iop_papar |= 0x1000;
419 immr->im_ioport.iop_padir &= ~0x1000;
421 immr->im_ioport.iop_papar |= 0xe810;
422 immr->im_ioport.iop_padir |= 0x0810;
423 immr->im_ioport.iop_padir &= ~0xe000;
425 immr->im_cpm.cp_pbpar |= 0x00000001;
426 immr->im_cpm.cp_pbdir &= ~0x00000001;
428 immr->im_cpm.cp_cptr |= 0x00000100;
429 immr->im_cpm.cp_cptr &= ~0x00000050;
431 #endif /* !CONFIG_RMII */
435 * Configure all of port D for MII.
437 immr->im_ioport.iop_pdpar = 0x1fff;
440 * Bits moved from Rev. D onward
442 if ((get_immr(0) & 0xffff) < 0x0501)
443 immr->im_ioport.iop_pddir = 0x1c58; /* Pre rev. D */
445 immr->im_ioport.iop_pddir = 0x1fff; /* Rev. D and later */
448 #endif /* CONFIG_ETHER_ON_FEC1 */
449 } else if (fecidx == 1) {
451 #if defined(CONFIG_ETHER_ON_FEC2)
453 #if defined(CONFIG_MPC885_FAMILY) /* MPC87x/88x have got 2 FECs and different pinout */
455 #if !defined(CONFIG_RMII)
456 immr->im_cpm.cp_pepar |= 0x0003fffc;
457 immr->im_cpm.cp_pedir |= 0x0003fffc;
458 immr->im_cpm.cp_peso &= ~0x000087fc;
459 immr->im_cpm.cp_peso |= 0x00037800;
461 immr->im_cpm.cp_cptr &= ~0x00000080;
464 #if !defined(CONFIG_FEC2_PHY_NORXERR)
465 immr->im_cpm.cp_pepar |= 0x00000010;
466 immr->im_cpm.cp_pedir |= 0x00000010;
467 immr->im_cpm.cp_peso &= ~0x00000010;
469 immr->im_cpm.cp_pepar |= 0x00039620;
470 immr->im_cpm.cp_pedir |= 0x00039620;
471 immr->im_cpm.cp_peso |= 0x00031000;
472 immr->im_cpm.cp_peso &= ~0x00008620;
474 immr->im_cpm.cp_cptr |= 0x00000080;
475 immr->im_cpm.cp_cptr &= ~0x00000028;
476 #endif /* CONFIG_RMII */
478 #endif /* CONFIG_MPC885_FAMILY */
480 #endif /* CONFIG_ETHER_ON_FEC2 */
485 static int fec_reset(volatile fec_t *fecp)
490 * A delay is required between a reset of the FEC block and
491 * initialization of other FEC registers because the reset takes
492 * some time to complete. If you don't delay, subsequent writes
493 * to FEC registers might get killed by the reset routine which is
497 fecp->fec_ecntrl = FEC_ECNTRL_PINMUX | FEC_ECNTRL_RESET;
499 (fecp->fec_ecntrl & FEC_ECNTRL_RESET) && (i < FEC_RESET_DELAY);
503 if (i == FEC_RESET_DELAY)
509 static int fec_init (struct eth_device *dev, bd_t * bd)
511 struct ether_fcc_info_s *efis = dev->priv;
512 volatile immap_t *immr = (immap_t *) CONFIG_SYS_IMMR;
513 volatile fec_t *fecp =
514 (volatile fec_t *) (CONFIG_SYS_IMMR + efis->fecp_offset);
517 #if defined(CONFIG_MII) || defined(CONFIG_CMD_MII)
518 /* the MII interface is connected to FEC1
519 * so for the miiphy_xxx function to work we must
520 * call mii_init since fec_halt messes the thing up
522 if (efis->ether_index != 0)
526 if (fec_reset(fecp) < 0)
527 printf ("FEC_RESET_DELAY timeout\n");
529 /* We use strictly polling mode only
533 /* Clear any pending interrupt
535 fecp->fec_ievent = 0xffc0;
537 /* No need to set the IVEC register */
539 /* Set station address
541 #define ea dev->enetaddr
542 fecp->fec_addr_low = (ea[0] << 24) | (ea[1] << 16) | (ea[2] << 8) | (ea[3]);
543 fecp->fec_addr_high = (ea[4] << 8) | (ea[5]);
546 #if defined(CONFIG_CMD_CDP)
548 * Turn on multicast address hash table
550 fecp->fec_hash_table_high = 0xffffffff;
551 fecp->fec_hash_table_low = 0xffffffff;
553 /* Clear multicast address hash table
555 fecp->fec_hash_table_high = 0;
556 fecp->fec_hash_table_low = 0;
559 /* Set maximum receive buffer size.
561 fecp->fec_r_buff_size = PKT_MAXBLR_SIZE;
563 /* Set maximum frame length
565 fecp->fec_r_hash = PKT_MAXBUF_SIZE;
568 * Setup Buffers and Buffer Desriptors
574 #ifdef CONFIG_SYS_ALLOC_DPRAM
575 rtx = (RTXBD *) (immr->im_cpm.cp_dpmem +
576 dpram_alloc_align (sizeof (RTXBD), 8));
578 rtx = (RTXBD *) (immr->im_cpm.cp_dpmem + CPM_FEC_BASE);
582 * Setup Receiver Buffer Descriptors (13.14.24.18)
586 for (i = 0; i < PKTBUFSRX; i++) {
587 rtx->rxbd[i].cbd_sc = BD_ENET_RX_EMPTY;
588 rtx->rxbd[i].cbd_datlen = 0; /* Reset */
589 rtx->rxbd[i].cbd_bufaddr = (uint) net_rx_packets[i];
591 rtx->rxbd[PKTBUFSRX - 1].cbd_sc |= BD_ENET_RX_WRAP;
594 * Setup Ethernet Transmitter Buffer Descriptors (13.14.24.19)
598 for (i = 0; i < TX_BUF_CNT; i++) {
599 rtx->txbd[i].cbd_sc = BD_ENET_TX_LAST | BD_ENET_TX_TC;
600 rtx->txbd[i].cbd_datlen = 0; /* Reset */
601 rtx->txbd[i].cbd_bufaddr = (uint) (&txbuf[0]);
603 rtx->txbd[TX_BUF_CNT - 1].cbd_sc |= BD_ENET_TX_WRAP;
605 /* Set receive and transmit descriptor base
607 fecp->fec_r_des_start = (unsigned int) (&rtx->rxbd[0]);
608 fecp->fec_x_des_start = (unsigned int) (&rtx->txbd[0]);
612 #if 0 /* Full duplex mode */
613 fecp->fec_r_cntrl = FEC_RCNTRL_MII_MODE;
614 fecp->fec_x_cntrl = FEC_TCNTRL_FDEN;
615 #else /* Half duplex mode */
616 fecp->fec_r_cntrl = FEC_RCNTRL_MII_MODE | FEC_RCNTRL_DRT;
617 fecp->fec_x_cntrl = 0;
620 /* Enable big endian and don't care about SDMA FC.
622 fecp->fec_fun_code = 0x78000000;
625 * Setup the pin configuration of the FEC
627 fec_pin_init (efis->ether_index);
633 * Now enable the transmit and receive processing
635 fecp->fec_ecntrl = FEC_ECNTRL_PINMUX | FEC_ECNTRL_ETHER_EN;
637 if (efis->phy_addr == -1) {
638 #ifdef CONFIG_SYS_DISCOVER_PHY
640 * wait for the PHY to wake up after reset
642 efis->actual_phy_addr = mii_discover_phy (dev);
644 if (efis->actual_phy_addr == -1) {
645 printf ("Unable to discover phy!\n");
649 efis->actual_phy_addr = -1;
652 efis->actual_phy_addr = efis->phy_addr;
655 #if defined(CONFIG_MII) && defined(CONFIG_RMII)
657 * adapt the RMII speed to the speed of the phy
659 if (miiphy_speed (dev->name, efis->actual_phy_addr) == _100BASET) {
666 #if defined(CONFIG_MII)
668 * adapt to the half/full speed settings
670 if (miiphy_duplex (dev->name, efis->actual_phy_addr) == FULL) {
671 fec_full_duplex (dev);
673 fec_half_duplex (dev);
677 /* And last, try to fill Rx Buffer Descriptors */
678 fecp->fec_r_des_active = 0x01000000; /* Descriptor polling active */
680 efis->initialized = 1;
686 static void fec_halt(struct eth_device* dev)
688 struct ether_fcc_info_s *efis = dev->priv;
689 volatile fec_t *fecp = (volatile fec_t *)(CONFIG_SYS_IMMR + efis->fecp_offset);
692 /* avoid halt if initialized; mii gets stuck otherwise */
693 if (!efis->initialized)
697 * A delay is required between a reset of the FEC block and
698 * initialization of other FEC registers because the reset takes
699 * some time to complete. If you don't delay, subsequent writes
700 * to FEC registers might get killed by the reset routine which is
704 fecp->fec_ecntrl = FEC_ECNTRL_PINMUX | FEC_ECNTRL_RESET;
706 (fecp->fec_ecntrl & FEC_ECNTRL_RESET) && (i < FEC_RESET_DELAY);
710 if (i == FEC_RESET_DELAY) {
711 printf ("FEC_RESET_DELAY timeout\n");
715 efis->initialized = 0;
718 #if defined(CONFIG_SYS_DISCOVER_PHY) || defined(CONFIG_MII) || defined(CONFIG_CMD_MII)
720 /* Make MII read/write commands for the FEC.
723 #define mk_mii_read(ADDR, REG) (0x60020000 | ((ADDR << 23) | \
726 #define mk_mii_write(ADDR, REG, VAL) (0x50020000 | ((ADDR << 23) | \
727 (REG & 0x1f) << 18) | \
730 /* Interrupt events/masks.
732 #define FEC_ENET_HBERR ((uint)0x80000000) /* Heartbeat error */
733 #define FEC_ENET_BABR ((uint)0x40000000) /* Babbling receiver */
734 #define FEC_ENET_BABT ((uint)0x20000000) /* Babbling transmitter */
735 #define FEC_ENET_GRA ((uint)0x10000000) /* Graceful stop complete */
736 #define FEC_ENET_TXF ((uint)0x08000000) /* Full frame transmitted */
737 #define FEC_ENET_TXB ((uint)0x04000000) /* A buffer was transmitted */
738 #define FEC_ENET_RXF ((uint)0x02000000) /* Full frame received */
739 #define FEC_ENET_RXB ((uint)0x01000000) /* A buffer was received */
740 #define FEC_ENET_MII ((uint)0x00800000) /* MII interrupt */
741 #define FEC_ENET_EBERR ((uint)0x00400000) /* SDMA bus error */
743 /* PHY identification
745 #define PHY_ID_LXT970 0x78100000 /* LXT970 */
746 #define PHY_ID_LXT971 0x001378e0 /* LXT971 and 972 */
747 #define PHY_ID_82555 0x02a80150 /* Intel 82555 */
748 #define PHY_ID_QS6612 0x01814400 /* QS6612 */
749 #define PHY_ID_AMD79C784 0x00225610 /* AMD 79C784 */
750 #define PHY_ID_LSI80225 0x0016f870 /* LSI 80225 */
751 #define PHY_ID_LSI80225B 0x0016f880 /* LSI 80225/B */
752 #define PHY_ID_DM9161 0x0181B880 /* Davicom DM9161 */
753 #define PHY_ID_KSM8995M 0x00221450 /* MICREL KS8995MA */
755 /* send command to phy using mii, wait for result */
757 mii_send(uint mii_cmd)
763 ep = &(((immap_t *)CONFIG_SYS_IMMR)->im_cpm.cp_fec);
765 ep->fec_mii_data = mii_cmd; /* command to phy */
767 /* wait for mii complete */
769 while (!(ep->fec_ievent & FEC_ENET_MII)) {
771 printf("mii_send STUCK!\n");
775 mii_reply = ep->fec_mii_data; /* result from phy */
776 ep->fec_ievent = FEC_ENET_MII; /* clear MII complete */
778 printf("%s[%d] %s: sent=0x%8.8x, reply=0x%8.8x\n",
779 __FILE__,__LINE__,__FUNCTION__,mii_cmd,mii_reply);
781 return (mii_reply & 0xffff); /* data read from phy */
785 #if defined(CONFIG_SYS_DISCOVER_PHY)
786 static int mii_discover_phy(struct eth_device *dev)
788 #define MAX_PHY_PASSES 11
794 phyaddr = -1; /* didn't find a PHY yet */
795 for (pass = 1; pass <= MAX_PHY_PASSES && phyaddr < 0; ++pass) {
797 /* PHY may need more time to recover from reset.
798 * The LXT970 needs 50ms typical, no maximum is
799 * specified, so wait 10ms before try again.
800 * With 11 passes this gives it 100ms to wake up.
802 udelay(10000); /* wait 10ms */
804 for (phyno = 0; phyno < 32 && phyaddr < 0; ++phyno) {
805 phytype = mii_send(mk_mii_read(phyno, MII_PHYSID2));
807 printf("PHY type 0x%x pass %d type ", phytype, pass);
809 if (phytype != 0xffff) {
811 phytype |= mii_send(mk_mii_read(phyno,
815 printf("PHY @ 0x%x pass %d type ",phyno,pass);
816 switch (phytype & 0xfffffff0) {
829 case PHY_ID_AMD79C784:
830 printf("AMD79C784\n");
832 case PHY_ID_LSI80225B:
833 printf("LSI L80225/B\n");
836 printf("Davicom DM9161\n");
838 case PHY_ID_KSM8995M:
839 printf("MICREL KS8995M\n");
842 printf("0x%08x\n", phytype);
850 printf("No PHY device found.\n");
854 #endif /* CONFIG_SYS_DISCOVER_PHY */
856 #if (defined(CONFIG_MII) || defined(CONFIG_CMD_MII)) && !defined(CONFIG_BITBANGMII)
858 /****************************************************************************
859 * mii_init -- Initialize the MII via FEC 1 for MII command without ethernet
860 * This function is a subset of eth_init
861 ****************************************************************************
863 static void __mii_init(void)
865 volatile immap_t *immr = (immap_t *) CONFIG_SYS_IMMR;
866 volatile fec_t *fecp = &(immr->im_cpm.cp_fec);
868 if (fec_reset(fecp) < 0)
869 printf ("FEC_RESET_DELAY timeout\n");
871 /* We use strictly polling mode only
875 /* Clear any pending interrupt
877 fecp->fec_ievent = 0xffc0;
879 /* Now enable the transmit and receive processing
881 fecp->fec_ecntrl = FEC_ECNTRL_PINMUX | FEC_ECNTRL_ETHER_EN;
890 /* Setup the pin configuration of the FEC(s)
892 for (i = 0; i < ARRAY_SIZE(ether_fcc_info); i++)
893 fec_pin_init(ether_fcc_info[i].ether_index);
896 /*****************************************************************************
897 * Read and write a MII PHY register, routines used by MII Utilities
899 * FIXME: These routines are expected to return 0 on success, but mii_send
900 * does _not_ return an error code. Maybe 0xFFFF means error, i.e.
901 * no PHY connected...
902 * For now always return 0.
903 * FIXME: These routines only work after calling eth_init() at least once!
904 * Otherwise they hang in mii_send() !!! Sorry!
905 *****************************************************************************/
907 int fec8xx_miiphy_read(struct mii_dev *bus, int addr, int devad, int reg)
909 unsigned short value = 0;
910 short rdreg; /* register working value */
913 printf ("miiphy_read(0x%x) @ 0x%x = ", reg, addr);
915 rdreg = mii_send(mk_mii_read(addr, reg));
919 printf ("0x%04x\n", value);
924 int fec8xx_miiphy_write(struct mii_dev *bus, int addr, int devad, int reg,
928 printf ("miiphy_write(0x%x) @ 0x%x = ", reg, addr);
930 (void)mii_send(mk_mii_write(addr, reg, value));
933 printf ("0x%04x\n", value);