2 * Freescale Three Speed Ethernet Controller driver
4 * This software may be used and distributed according to the
5 * terms of the GNU Public License, Version 2, incorporated
8 * Copyright 2004-2011 Freescale Semiconductor, Inc.
9 * (C) Copyright 2003, Motorola, Inc.
21 #include <asm/errno.h>
22 #include <asm/processor.h>
24 DECLARE_GLOBAL_DATA_PTR;
28 static uint rxIdx; /* index of the current RX buffer */
29 static uint txIdx; /* index of the current TX buffer */
31 typedef volatile struct rtxbd {
32 txbd8_t txbd[TX_BUF_CNT];
33 rxbd8_t rxbd[PKTBUFSRX];
36 #define MAXCONTROLLERS (8)
38 static struct tsec_private *privlist[MAXCONTROLLERS];
39 static int num_tsecs = 0;
42 static RTXBD rtx __attribute__ ((aligned(8)));
44 #error "rtx must be 64-bit aligned"
47 static int tsec_send(struct eth_device *dev,
48 volatile void *packet, int length);
50 /* Default initializations for TSEC controllers. */
52 static struct tsec_info_struct tsec_info[] = {
54 STD_TSEC_INFO(1), /* TSEC1 */
57 STD_TSEC_INFO(2), /* TSEC2 */
59 #ifdef CONFIG_MPC85XX_FEC
61 .regs = (tsec_t *)(TSEC_BASE_ADDR + 0x2000),
62 .devname = CONFIG_MPC85XX_FEC_NAME,
63 .phyaddr = FEC_PHY_ADDR,
65 .mii_devname = DEFAULT_MII_NAME
69 STD_TSEC_INFO(3), /* TSEC3 */
72 STD_TSEC_INFO(4), /* TSEC4 */
76 #define TBIANA_SETTINGS ( \
77 TBIANA_ASYMMETRIC_PAUSE \
78 | TBIANA_SYMMETRIC_PAUSE \
79 | TBIANA_FULL_DUPLEX \
82 /* By default force the TBI PHY into 1000Mbps full duplex when in SGMII mode */
83 #ifndef CONFIG_TSEC_TBICR_SETTINGS
84 #define CONFIG_TSEC_TBICR_SETTINGS ( \
90 #endif /* CONFIG_TSEC_TBICR_SETTINGS */
92 /* Configure the TBI for SGMII operation */
93 static void tsec_configure_serdes(struct tsec_private *priv)
95 /* Access TBI PHY registers at given TSEC register offset as opposed
96 * to the register offset used for external PHY accesses */
97 tsec_local_mdio_write(priv->phyregs_sgmii, in_be32(&priv->regs->tbipa),
98 0, TBI_ANA, TBIANA_SETTINGS);
99 tsec_local_mdio_write(priv->phyregs_sgmii, in_be32(&priv->regs->tbipa),
100 0, TBI_TBICON, TBICON_CLK_SELECT);
101 tsec_local_mdio_write(priv->phyregs_sgmii, in_be32(&priv->regs->tbipa),
102 0, TBI_CR, CONFIG_TSEC_TBICR_SETTINGS);
105 #ifdef CONFIG_MCAST_TFTP
107 /* CREDITS: linux gianfar driver, slightly adjusted... thanx. */
109 /* Set the appropriate hash bit for the given addr */
111 /* The algorithm works like so:
112 * 1) Take the Destination Address (ie the multicast address), and
113 * do a CRC on it (little endian), and reverse the bits of the
115 * 2) Use the 8 most significant bits as a hash into a 256-entry
116 * table. The table is controlled through 8 32-bit registers:
117 * gaddr0-7. gaddr0's MSB is entry 0, and gaddr7's LSB is
118 * gaddr7. This means that the 3 most significant bits in the
119 * hash index which gaddr register to use, and the 5 other bits
120 * indicate which bit (assuming an IBM numbering scheme, which
121 * for PowerPC (tm) is usually the case) in the tregister holds
124 tsec_mcast_addr (struct eth_device *dev, u8 mcast_mac, u8 set)
126 struct tsec_private *priv = privlist[1];
127 volatile tsec_t *regs = priv->regs;
128 volatile u32 *reg_array, value;
129 u8 result, whichbit, whichreg;
131 result = (u8)((ether_crc(MAC_ADDR_LEN,mcast_mac) >> 24) & 0xff);
132 whichbit = result & 0x1f; /* the 5 LSB = which bit to set */
133 whichreg = result >> 5; /* the 3 MSB = which reg to set it in */
134 value = (1 << (31-whichbit));
136 reg_array = &(regs->hash.gaddr0);
139 reg_array[whichreg] |= value;
141 reg_array[whichreg] &= ~value;
145 #endif /* Multicast TFTP ? */
147 /* Initialized required registers to appropriate values, zeroing
148 * those we don't care about (unless zero is bad, in which case,
149 * choose a more appropriate value)
151 static void init_registers(tsec_t *regs)
154 out_be32(®s->ievent, IEVENT_INIT_CLEAR);
156 out_be32(®s->imask, IMASK_INIT_CLEAR);
158 out_be32(®s->hash.iaddr0, 0);
159 out_be32(®s->hash.iaddr1, 0);
160 out_be32(®s->hash.iaddr2, 0);
161 out_be32(®s->hash.iaddr3, 0);
162 out_be32(®s->hash.iaddr4, 0);
163 out_be32(®s->hash.iaddr5, 0);
164 out_be32(®s->hash.iaddr6, 0);
165 out_be32(®s->hash.iaddr7, 0);
167 out_be32(®s->hash.gaddr0, 0);
168 out_be32(®s->hash.gaddr1, 0);
169 out_be32(®s->hash.gaddr2, 0);
170 out_be32(®s->hash.gaddr3, 0);
171 out_be32(®s->hash.gaddr4, 0);
172 out_be32(®s->hash.gaddr5, 0);
173 out_be32(®s->hash.gaddr6, 0);
174 out_be32(®s->hash.gaddr7, 0);
176 out_be32(®s->rctrl, 0x00000000);
178 /* Init RMON mib registers */
179 memset((void *)&(regs->rmon), 0, sizeof(rmon_mib_t));
181 out_be32(®s->rmon.cam1, 0xffffffff);
182 out_be32(®s->rmon.cam2, 0xffffffff);
184 out_be32(®s->mrblr, MRBLR_INIT_SETTINGS);
186 out_be32(®s->minflr, MINFLR_INIT_SETTINGS);
188 out_be32(®s->attr, ATTR_INIT_SETTINGS);
189 out_be32(®s->attreli, ATTRELI_INIT_SETTINGS);
193 /* Configure maccfg2 based on negotiated speed and duplex
194 * reported by PHY handling code
196 static void adjust_link(struct tsec_private *priv, struct phy_device *phydev)
198 tsec_t *regs = priv->regs;
202 printf("%s: No link.\n", phydev->dev->name);
206 /* clear all bits relative with interface mode */
207 ecntrl = in_be32(®s->ecntrl);
208 ecntrl &= ~ECNTRL_R100;
210 maccfg2 = in_be32(®s->maccfg2);
211 maccfg2 &= ~(MACCFG2_IF | MACCFG2_FULL_DUPLEX);
214 maccfg2 |= MACCFG2_FULL_DUPLEX;
216 switch (phydev->speed) {
218 maccfg2 |= MACCFG2_GMII;
222 maccfg2 |= MACCFG2_MII;
224 /* Set R100 bit in all modes although
225 * it is only used in RGMII mode
227 if (phydev->speed == 100)
228 ecntrl |= ECNTRL_R100;
231 printf("%s: Speed was bad\n", phydev->dev->name);
235 out_be32(®s->ecntrl, ecntrl);
236 out_be32(®s->maccfg2, maccfg2);
238 printf("Speed: %d, %s duplex%s\n", phydev->speed,
239 (phydev->duplex) ? "full" : "half",
240 (phydev->port == PORT_FIBRE) ? ", fiber mode" : "");
243 #ifdef CONFIG_SYS_FSL_ERRATUM_NMG_ETSEC129
245 * When MACCFG1[Rx_EN] is enabled during system boot as part
246 * of the eTSEC port initialization sequence,
247 * the eTSEC Rx logic may not be properly initialized.
249 void redundant_init(struct eth_device *dev)
251 struct tsec_private *priv = dev->priv;
252 tsec_t *regs = priv->regs;
255 static const u8 pkt[] = {
256 0x00, 0x1e, 0x4f, 0x12, 0xcb, 0x2c, 0x00, 0x25,
257 0x64, 0xbb, 0xd1, 0xab, 0x08, 0x00, 0x45, 0x00,
258 0x00, 0x5c, 0xdd, 0x22, 0x00, 0x00, 0x80, 0x01,
259 0x1f, 0x71, 0x0a, 0xc1, 0x14, 0x22, 0x0a, 0xc1,
260 0x14, 0x6a, 0x08, 0x00, 0xef, 0x7e, 0x02, 0x00,
261 0x94, 0x05, 0x61, 0x62, 0x63, 0x64, 0x65, 0x66,
262 0x67, 0x68, 0x69, 0x6a, 0x6b, 0x6c, 0x6d, 0x6e,
263 0x6f, 0x70, 0x71, 0x72, 0x73, 0x74, 0x75, 0x76,
264 0x77, 0x61, 0x62, 0x63, 0x64, 0x65, 0x66, 0x67,
265 0x68, 0x69, 0x6a, 0x6b, 0x6c, 0x6d, 0x6e, 0x6f,
266 0x70, 0x71, 0x72, 0x73, 0x74, 0x75, 0x76, 0x77,
267 0x61, 0x62, 0x63, 0x64, 0x65, 0x66, 0x67, 0x68,
268 0x69, 0x6a, 0x6b, 0x6c, 0x6d, 0x6e, 0x6f, 0x70,
271 /* Enable promiscuous mode */
272 setbits_be32(®s->rctrl, 0x8);
273 /* Enable loopback mode */
274 setbits_be32(®s->maccfg1, MACCFG1_LOOPBACK);
275 /* Enable transmit and receive */
276 setbits_be32(®s->maccfg1, MACCFG1_RX_EN | MACCFG1_TX_EN);
278 /* Tell the DMA it is clear to go */
279 setbits_be32(®s->dmactrl, DMACTRL_INIT_SETTINGS);
280 out_be32(®s->tstat, TSTAT_CLEAR_THALT);
281 out_be32(®s->rstat, RSTAT_CLEAR_RHALT);
282 clrbits_be32(®s->dmactrl, DMACTRL_GRS | DMACTRL_GTS);
285 tsec_send(dev, (void *)pkt, sizeof(pkt));
287 /* Wait for buffer to be received */
288 for (t = 0; rtx.rxbd[rxIdx].status & RXBD_EMPTY; t++) {
289 if (t >= 10 * TOUT_LOOP) {
290 printf("%s: tsec: rx error\n", dev->name);
295 if (!memcmp(pkt, (void *)NetRxPackets[rxIdx], sizeof(pkt)))
298 rtx.rxbd[rxIdx].length = 0;
299 rtx.rxbd[rxIdx].status =
300 RXBD_EMPTY | (((rxIdx + 1) == PKTBUFSRX) ? RXBD_WRAP : 0);
301 rxIdx = (rxIdx + 1) % PKTBUFSRX;
303 if (in_be32(®s->ievent) & IEVENT_BSY) {
304 out_be32(®s->ievent, IEVENT_BSY);
305 out_be32(®s->rstat, RSTAT_CLEAR_RHALT);
308 printf("loopback recv packet error!\n");
309 clrbits_be32(®s->maccfg1, MACCFG1_RX_EN);
311 setbits_be32(®s->maccfg1, MACCFG1_RX_EN);
313 } while ((count++ < 4) && (fail == 1));
316 panic("eTSEC init fail!\n");
317 /* Disable promiscuous mode */
318 clrbits_be32(®s->rctrl, 0x8);
319 /* Disable loopback mode */
320 clrbits_be32(®s->maccfg1, MACCFG1_LOOPBACK);
324 /* Set up the buffers and their descriptors, and bring up the
327 static void startup_tsec(struct eth_device *dev)
330 struct tsec_private *priv = (struct tsec_private *)dev->priv;
331 tsec_t *regs = priv->regs;
333 /* reset the indices to zero */
336 #ifdef CONFIG_SYS_FSL_ERRATUM_NMG_ETSEC129
340 /* Point to the buffer descriptors */
341 out_be32(®s->tbase, (unsigned int)(&rtx.txbd[txIdx]));
342 out_be32(®s->rbase, (unsigned int)(&rtx.rxbd[rxIdx]));
344 /* Initialize the Rx Buffer descriptors */
345 for (i = 0; i < PKTBUFSRX; i++) {
346 rtx.rxbd[i].status = RXBD_EMPTY;
347 rtx.rxbd[i].length = 0;
348 rtx.rxbd[i].bufPtr = (uint) NetRxPackets[i];
350 rtx.rxbd[PKTBUFSRX - 1].status |= RXBD_WRAP;
352 /* Initialize the TX Buffer Descriptors */
353 for (i = 0; i < TX_BUF_CNT; i++) {
354 rtx.txbd[i].status = 0;
355 rtx.txbd[i].length = 0;
356 rtx.txbd[i].bufPtr = 0;
358 rtx.txbd[TX_BUF_CNT - 1].status |= TXBD_WRAP;
360 #ifdef CONFIG_SYS_FSL_ERRATUM_NMG_ETSEC129
362 if ((SVR_MAJ(svr) == 1) || IS_SVR_REV(svr, 2, 0))
365 /* Enable Transmit and Receive */
366 setbits_be32(®s->maccfg1, MACCFG1_RX_EN | MACCFG1_TX_EN);
368 /* Tell the DMA it is clear to go */
369 setbits_be32(®s->dmactrl, DMACTRL_INIT_SETTINGS);
370 out_be32(®s->tstat, TSTAT_CLEAR_THALT);
371 out_be32(®s->rstat, RSTAT_CLEAR_RHALT);
372 clrbits_be32(®s->dmactrl, DMACTRL_GRS | DMACTRL_GTS);
375 /* This returns the status bits of the device. The return value
376 * is never checked, and this is what the 8260 driver did, so we
377 * do the same. Presumably, this would be zero if there were no
380 static int tsec_send(struct eth_device *dev, volatile void *packet, int length)
384 struct tsec_private *priv = (struct tsec_private *)dev->priv;
385 tsec_t *regs = priv->regs;
387 /* Find an empty buffer descriptor */
388 for (i = 0; rtx.txbd[txIdx].status & TXBD_READY; i++) {
389 if (i >= TOUT_LOOP) {
390 debug("%s: tsec: tx buffers full\n", dev->name);
395 rtx.txbd[txIdx].bufPtr = (uint) packet;
396 rtx.txbd[txIdx].length = length;
397 rtx.txbd[txIdx].status |=
398 (TXBD_READY | TXBD_LAST | TXBD_CRC | TXBD_INTERRUPT);
400 /* Tell the DMA to go */
401 out_be32(®s->tstat, TSTAT_CLEAR_THALT);
403 /* Wait for buffer to be transmitted */
404 for (i = 0; rtx.txbd[txIdx].status & TXBD_READY; i++) {
405 if (i >= TOUT_LOOP) {
406 debug("%s: tsec: tx error\n", dev->name);
411 txIdx = (txIdx + 1) % TX_BUF_CNT;
412 result = rtx.txbd[txIdx].status & TXBD_STATS;
417 static int tsec_recv(struct eth_device *dev)
420 struct tsec_private *priv = (struct tsec_private *)dev->priv;
421 tsec_t *regs = priv->regs;
423 while (!(rtx.rxbd[rxIdx].status & RXBD_EMPTY)) {
425 length = rtx.rxbd[rxIdx].length;
427 /* Send the packet up if there were no errors */
428 if (!(rtx.rxbd[rxIdx].status & RXBD_STATS)) {
429 NetReceive(NetRxPackets[rxIdx], length - 4);
431 printf("Got error %x\n",
432 (rtx.rxbd[rxIdx].status & RXBD_STATS));
435 rtx.rxbd[rxIdx].length = 0;
437 /* Set the wrap bit if this is the last element in the list */
438 rtx.rxbd[rxIdx].status =
439 RXBD_EMPTY | (((rxIdx + 1) == PKTBUFSRX) ? RXBD_WRAP : 0);
441 rxIdx = (rxIdx + 1) % PKTBUFSRX;
444 if (in_be32(®s->ievent) & IEVENT_BSY) {
445 out_be32(®s->ievent, IEVENT_BSY);
446 out_be32(®s->rstat, RSTAT_CLEAR_RHALT);
453 /* Stop the interface */
454 static void tsec_halt(struct eth_device *dev)
456 struct tsec_private *priv = (struct tsec_private *)dev->priv;
457 tsec_t *regs = priv->regs;
459 clrbits_be32(®s->dmactrl, DMACTRL_GRS | DMACTRL_GTS);
460 setbits_be32(®s->dmactrl, DMACTRL_GRS | DMACTRL_GTS);
462 while ((in_be32(®s->ievent) & (IEVENT_GRSC | IEVENT_GTSC))
463 != (IEVENT_GRSC | IEVENT_GTSC))
466 clrbits_be32(®s->maccfg1, MACCFG1_TX_EN | MACCFG1_RX_EN);
468 /* Shut down the PHY, as needed */
469 phy_shutdown(priv->phydev);
472 /* Initializes data structures and registers for the controller,
473 * and brings the interface up. Returns the link status, meaning
474 * that it returns success if the link is up, failure otherwise.
475 * This allows u-boot to find the first active controller.
477 static int tsec_init(struct eth_device *dev, bd_t * bd)
480 char tmpbuf[MAC_ADDR_LEN];
482 struct tsec_private *priv = (struct tsec_private *)dev->priv;
483 tsec_t *regs = priv->regs;
485 /* Make sure the controller is stopped */
488 /* Init MACCFG2. Defaults to GMII */
489 out_be32(®s->maccfg2, MACCFG2_INIT_SETTINGS);
492 out_be32(®s->ecntrl, ECNTRL_INIT_SETTINGS);
494 /* Copy the station address into the address registers.
495 * Backwards, because little endian MACS are dumb */
496 for (i = 0; i < MAC_ADDR_LEN; i++)
497 tmpbuf[MAC_ADDR_LEN - 1 - i] = dev->enetaddr[i];
499 tempval = (tmpbuf[0] << 24) | (tmpbuf[1] << 16) | (tmpbuf[2] << 8) |
502 out_be32(®s->macstnaddr1, tempval);
504 tempval = *((uint *) (tmpbuf + 4));
506 out_be32(®s->macstnaddr2, tempval);
508 /* Clear out (for the most part) the other registers */
509 init_registers(regs);
511 /* Ready the device for tx/rx */
514 /* Start up the PHY */
515 phy_startup(priv->phydev);
517 adjust_link(priv, priv->phydev);
519 /* If there's no link, fail */
520 return priv->phydev->link ? 0 : -1;
523 static phy_interface_t tsec_get_interface(struct tsec_private *priv)
525 tsec_t *regs = priv->regs;
528 ecntrl = in_be32(®s->ecntrl);
530 if (ecntrl & ECNTRL_SGMII_MODE)
531 return PHY_INTERFACE_MODE_SGMII;
533 if (ecntrl & ECNTRL_TBI_MODE) {
534 if (ecntrl & ECNTRL_REDUCED_MODE)
535 return PHY_INTERFACE_MODE_RTBI;
537 return PHY_INTERFACE_MODE_TBI;
540 if (ecntrl & ECNTRL_REDUCED_MODE) {
541 if (ecntrl & ECNTRL_REDUCED_MII_MODE)
542 return PHY_INTERFACE_MODE_RMII;
544 phy_interface_t interface = priv->interface;
547 * This isn't autodetected, so it must
548 * be set by the platform code.
550 if ((interface == PHY_INTERFACE_MODE_RGMII_ID) ||
551 (interface == PHY_INTERFACE_MODE_RGMII_TXID) ||
552 (interface == PHY_INTERFACE_MODE_RGMII_RXID))
555 return PHY_INTERFACE_MODE_RGMII;
559 if (priv->flags & TSEC_GIGABIT)
560 return PHY_INTERFACE_MODE_GMII;
562 return PHY_INTERFACE_MODE_MII;
566 /* Discover which PHY is attached to the device, and configure it
567 * properly. If the PHY is not recognized, then return 0
568 * (failure). Otherwise, return 1
570 static int init_phy(struct eth_device *dev)
572 struct tsec_private *priv = (struct tsec_private *)dev->priv;
573 struct phy_device *phydev;
574 tsec_t *regs = priv->regs;
575 u32 supported = (SUPPORTED_10baseT_Half |
576 SUPPORTED_10baseT_Full |
577 SUPPORTED_100baseT_Half |
578 SUPPORTED_100baseT_Full);
580 if (priv->flags & TSEC_GIGABIT)
581 supported |= SUPPORTED_1000baseT_Full;
583 /* Assign a Physical address to the TBI */
584 out_be32(®s->tbipa, CONFIG_SYS_TBIPA_VALUE);
586 priv->interface = tsec_get_interface(priv);
588 if (priv->interface == PHY_INTERFACE_MODE_SGMII)
589 tsec_configure_serdes(priv);
591 phydev = phy_connect(priv->bus, priv->phyaddr, dev, priv->interface);
593 phydev->supported &= supported;
594 phydev->advertising = phydev->supported;
596 priv->phydev = phydev;
603 /* Initialize device structure. Returns success if PHY
604 * initialization succeeded (i.e. if it recognizes the PHY)
606 static int tsec_initialize(bd_t *bis, struct tsec_info_struct *tsec_info)
608 struct eth_device *dev;
610 struct tsec_private *priv;
612 dev = (struct eth_device *)malloc(sizeof *dev);
617 memset(dev, 0, sizeof *dev);
619 priv = (struct tsec_private *)malloc(sizeof(*priv));
624 privlist[num_tsecs++] = priv;
625 priv->regs = tsec_info->regs;
626 priv->phyregs_sgmii = tsec_info->miiregs_sgmii;
628 priv->phyaddr = tsec_info->phyaddr;
629 priv->flags = tsec_info->flags;
631 sprintf(dev->name, tsec_info->devname);
632 priv->interface = tsec_info->interface;
633 priv->bus = miiphy_get_dev_by_name(tsec_info->mii_devname);
636 dev->init = tsec_init;
637 dev->halt = tsec_halt;
638 dev->send = tsec_send;
639 dev->recv = tsec_recv;
640 #ifdef CONFIG_MCAST_TFTP
641 dev->mcast = tsec_mcast_addr;
644 /* Tell u-boot to get the addr from the env */
645 for (i = 0; i < 6; i++)
646 dev->enetaddr[i] = 0;
651 setbits_be32(&priv->regs->maccfg1, MACCFG1_SOFT_RESET);
652 udelay(2); /* Soft Reset must be asserted for 3 TX clocks */
653 clrbits_be32(&priv->regs->maccfg1, MACCFG1_SOFT_RESET);
655 /* Try to initialize PHY here, and return */
656 return init_phy(dev);
660 * Initialize all the TSEC devices
662 * Returns the number of TSEC devices that were initialized
664 int tsec_eth_init(bd_t *bis, struct tsec_info_struct *tsecs, int num)
669 for (i = 0; i < num; i++) {
670 ret = tsec_initialize(bis, &tsecs[i]);
678 int tsec_standard_init(bd_t *bis)
680 struct fsl_pq_mdio_info info;
682 info.regs = (struct tsec_mii_mng *)CONFIG_SYS_MDIO_BASE_ADDR;
683 info.name = DEFAULT_MII_NAME;
685 fsl_pq_mdio_init(bis, &info);
687 return tsec_eth_init(bis, tsec_info, ARRAY_SIZE(tsec_info));