2 * Altera 10/100/1000 triple speed ethernet mac driver
4 * Copyright (C) 2008 Altera Corporation.
5 * Copyright (C) 2010 Thomas Chou <thomas@wytron.com.tw>
7 * This program is free software; you can redistribute it and/or modify
8 * it under the terms of the GNU General Public License version 2 as
9 * published by the Free Software Foundation.
16 #include <asm/cache.h>
17 #include <asm/dma-mapping.h>
19 #include "altera_tse.h"
21 /* sgdma debug - print descriptor */
22 static void alt_sgdma_print_desc(volatile struct alt_sgdma_descriptor *desc)
24 debug("SGDMA DEBUG :\n");
25 debug("desc->source : 0x%x \n", (unsigned int)desc->source);
26 debug("desc->destination : 0x%x \n", (unsigned int)desc->destination);
27 debug("desc->next : 0x%x \n", (unsigned int)desc->next);
28 debug("desc->source_pad : 0x%x \n", (unsigned int)desc->source_pad);
29 debug("desc->destination_pad : 0x%x \n",
30 (unsigned int)desc->destination_pad);
31 debug("desc->next_pad : 0x%x \n", (unsigned int)desc->next_pad);
32 debug("desc->bytes_to_transfer : 0x%x \n",
33 (unsigned int)desc->bytes_to_transfer);
34 debug("desc->actual_bytes_transferred : 0x%x \n",
35 (unsigned int)desc->actual_bytes_transferred);
36 debug("desc->descriptor_status : 0x%x \n",
37 (unsigned int)desc->descriptor_status);
38 debug("desc->descriptor_control : 0x%x \n",
39 (unsigned int)desc->descriptor_control);
42 /* This is a generic routine that the SGDMA mode-specific routines
43 * call to populate a descriptor.
44 * arg1 :pointer to first SGDMA descriptor.
45 * arg2 :pointer to next SGDMA descriptor.
46 * arg3 :Address to where data to be written.
47 * arg4 :Address from where data to be read.
48 * arg5 :no of byte to transaction.
49 * arg6 :variable indicating to generate start of packet or not
54 * arg11 :atlantic_channel number
56 static void alt_sgdma_construct_descriptor_burst(
57 volatile struct alt_sgdma_descriptor *desc,
58 volatile struct alt_sgdma_descriptor *next,
59 unsigned int *read_addr,
60 unsigned int *write_addr,
61 unsigned short length_or_eop,
64 int write_fixed_or_sop,
67 unsigned char atlantic_channel)
70 * Mark the "next" descriptor as "not" owned by hardware. This prevents
71 * The SGDMA controller from continuing to process the chain. This is
72 * done as a single IO write to bypass cache, without flushing
73 * the entire descriptor, since only the 8-bit descriptor status must
77 debug("Next descriptor not defined!!\n");
79 next->descriptor_control = (next->descriptor_control &
80 ~ALT_SGDMA_DESCRIPTOR_CONTROL_OWNED_BY_HW_MSK);
82 desc->source = (unsigned int *)((unsigned int)read_addr & 0x1FFFFFFF);
84 (unsigned int *)((unsigned int)write_addr & 0x1FFFFFFF);
85 desc->next = (unsigned int *)((unsigned int)next & 0x1FFFFFFF);
86 desc->source_pad = 0x0;
87 desc->destination_pad = 0x0;
89 desc->bytes_to_transfer = length_or_eop;
90 desc->actual_bytes_transferred = 0;
91 desc->descriptor_status = 0x0;
93 /* SGDMA burst not currently supported */
95 desc->write_burst = 0;
98 * Set the descriptor control block as follows:
99 * - Set "owned by hardware" bit
100 * - Optionally set "generate EOP" bit
101 * - Optionally set the "read from fixed address" bit
102 * - Optionally set the "write to fixed address bit (which serves
103 * serves as a "generate SOP" control bit in memory-to-stream mode).
104 * - Set the 4-bit atlantic channel, if specified
106 * Note this step is performed after all other descriptor information
107 * has been filled out so that, if the controller already happens to be
108 * pointing at this descriptor, it will not run (via the "owned by
109 * hardware" bit) until all other descriptor has been set up.
112 desc->descriptor_control =
113 ((ALT_SGDMA_DESCRIPTOR_CONTROL_OWNED_BY_HW_MSK) |
115 ALT_SGDMA_DESCRIPTOR_CONTROL_GENERATE_EOP_MSK : 0x0) |
117 ALT_SGDMA_DESCRIPTOR_CONTROL_READ_FIXED_ADDRESS_MSK : 0x0) |
118 (write_fixed_or_sop ?
119 ALT_SGDMA_DESCRIPTOR_CONTROL_WRITE_FIXED_ADDRESS_MSK : 0x0) |
120 (atlantic_channel ? ((atlantic_channel & 0x0F) << 3) : 0)
124 static int alt_sgdma_do_sync_transfer(volatile struct alt_sgdma_registers *dev,
125 volatile struct alt_sgdma_descriptor *desc)
130 /* Wait for any pending transfers to complete */
131 alt_sgdma_print_desc(desc);
132 status = dev->status;
135 while (dev->status & ALT_SGDMA_STATUS_BUSY_MSK) {
136 if (counter++ > ALT_TSE_SGDMA_BUSY_WATCHDOG_CNTR)
140 if (counter >= ALT_TSE_SGDMA_BUSY_WATCHDOG_CNTR)
141 debug("Timeout waiting sgdma in do sync!\n");
144 * Clear any (previous) status register information
145 * that might occlude our error checking later.
149 /* Point the controller at the descriptor */
150 dev->next_descriptor_pointer = (unsigned int)desc & 0x1FFFFFFF;
151 debug("next desc in sgdma 0x%x\n",
152 (unsigned int)dev->next_descriptor_pointer);
155 * Set up SGDMA controller to:
156 * - Disable interrupt generation
157 * - Run once a valid descriptor is written to controller
158 * - Stop on an error with any particular descriptor
160 dev->control = (ALT_SGDMA_CONTROL_RUN_MSK |
161 ALT_SGDMA_CONTROL_STOP_DMA_ER_MSK);
163 /* Wait for the descriptor (chain) to complete */
164 status = dev->status;
165 debug("wait for sgdma....");
166 while (dev->status & ALT_SGDMA_STATUS_BUSY_MSK)
171 dev->control = (dev->control & (~ALT_SGDMA_CONTROL_RUN_MSK));
173 /* Get & clear status register contents */
174 status = dev->status;
177 /* we really should check if the transfer completes properly */
178 debug("tx sgdma status = 0x%x", status);
182 static int alt_sgdma_do_async_transfer(volatile struct alt_sgdma_registers *dev,
183 volatile struct alt_sgdma_descriptor *desc)
188 /* Wait for any pending transfers to complete */
189 alt_sgdma_print_desc(desc);
190 status = dev->status;
193 while (dev->status & ALT_SGDMA_STATUS_BUSY_MSK) {
194 if (counter++ > ALT_TSE_SGDMA_BUSY_WATCHDOG_CNTR)
198 if (counter >= ALT_TSE_SGDMA_BUSY_WATCHDOG_CNTR)
199 debug("Timeout waiting sgdma in do async!\n");
202 * Clear the RUN bit in the control register. This is needed
203 * to restart the SGDMA engine later on.
208 * Clear any (previous) status register information
209 * that might occlude our error checking later.
213 /* Point the controller at the descriptor */
214 dev->next_descriptor_pointer = (unsigned int)desc & 0x1FFFFFFF;
217 * Set up SGDMA controller to:
218 * - Disable interrupt generation
219 * - Run once a valid descriptor is written to controller
220 * - Stop on an error with any particular descriptor
222 dev->control = (ALT_SGDMA_CONTROL_RUN_MSK |
223 ALT_SGDMA_CONTROL_STOP_DMA_ER_MSK);
225 /* we really should check if the transfer completes properly */
229 /* u-boot interface */
230 static int tse_adjust_link(struct altera_tse_priv *priv)
234 refvar = priv->mac_dev->command_config.image;
236 if (!(priv->duplexity))
237 refvar |= ALTERA_TSE_CMD_HD_ENA_MSK;
239 refvar &= ~ALTERA_TSE_CMD_HD_ENA_MSK;
241 switch (priv->speed) {
243 refvar |= ALTERA_TSE_CMD_ETH_SPEED_MSK;
244 refvar &= ~ALTERA_TSE_CMD_ENA_10_MSK;
247 refvar &= ~ALTERA_TSE_CMD_ETH_SPEED_MSK;
248 refvar &= ~ALTERA_TSE_CMD_ENA_10_MSK;
251 refvar &= ~ALTERA_TSE_CMD_ETH_SPEED_MSK;
252 refvar |= ALTERA_TSE_CMD_ENA_10_MSK;
255 priv->mac_dev->command_config.image = refvar;
260 static int tse_eth_send(struct eth_device *dev, void *packet, int length)
262 struct altera_tse_priv *priv = dev->priv;
263 volatile struct alt_sgdma_registers *tx_sgdma = priv->sgdma_tx;
264 volatile struct alt_sgdma_descriptor *tx_desc =
265 (volatile struct alt_sgdma_descriptor *)priv->tx_desc;
267 volatile struct alt_sgdma_descriptor *tx_desc_cur =
268 (volatile struct alt_sgdma_descriptor *)&tx_desc[0];
270 flush_dcache_range((unsigned long)packet,
271 (unsigned long)packet + length);
272 alt_sgdma_construct_descriptor_burst(
273 (volatile struct alt_sgdma_descriptor *)&tx_desc[0],
274 (volatile struct alt_sgdma_descriptor *)&tx_desc[1],
275 (unsigned int *)packet, /* read addr */
277 length, /* length or EOP ,will change for each tx */
279 0x0, /* read fixed */
280 0x1, /* write fixed or sop */
281 0x0, /* read burst */
282 0x0, /* write burst */
285 debug("TX Packet @ 0x%x,0x%x bytes", (unsigned int)packet, length);
287 /* send the packet */
288 debug("sending packet\n");
289 alt_sgdma_do_sync_transfer(tx_sgdma, tx_desc_cur);
290 debug("sent %d bytes\n", tx_desc_cur->actual_bytes_transferred);
291 return tx_desc_cur->actual_bytes_transferred;
294 static int tse_eth_rx(struct eth_device *dev)
296 int packet_length = 0;
297 struct altera_tse_priv *priv = dev->priv;
298 volatile struct alt_sgdma_descriptor *rx_desc =
299 (volatile struct alt_sgdma_descriptor *)priv->rx_desc;
300 volatile struct alt_sgdma_descriptor *rx_desc_cur = &rx_desc[0];
302 if (rx_desc_cur->descriptor_status &
303 ALT_SGDMA_DESCRIPTOR_STATUS_TERMINATED_BY_EOP_MSK) {
304 debug("got packet\n");
305 packet_length = rx_desc->actual_bytes_transferred;
306 NetReceive(NetRxPackets[0], packet_length);
308 /* start descriptor again */
309 flush_dcache_range((unsigned long)(NetRxPackets[0]),
310 (unsigned long)(NetRxPackets[0]) + PKTSIZE_ALIGN);
311 alt_sgdma_construct_descriptor_burst(
312 (volatile struct alt_sgdma_descriptor *)&rx_desc[0],
313 (volatile struct alt_sgdma_descriptor *)&rx_desc[1],
314 (unsigned int)0x0, /* read addr */
315 (unsigned int *)NetRxPackets[0],
316 0x0, /* length or EOP */
318 0x0, /* read fixed */
319 0x0, /* write fixed or sop */
320 0x0, /* read burst */
321 0x0, /* write burst */
325 /* setup the sgdma */
326 alt_sgdma_do_async_transfer(priv->sgdma_rx, &rx_desc[0]);
328 return packet_length;
334 static void tse_eth_halt(struct eth_device *dev)
336 /* don't do anything! */
337 /* this gets called after each uboot */
338 /* network command. don't need to reset the thing all of the time */
341 static void tse_eth_reset(struct eth_device *dev)
343 /* stop sgdmas, disable tse receive */
344 struct altera_tse_priv *priv = dev->priv;
345 volatile struct alt_tse_mac *mac_dev = priv->mac_dev;
346 volatile struct alt_sgdma_registers *rx_sgdma = priv->sgdma_rx;
347 volatile struct alt_sgdma_registers *tx_sgdma = priv->sgdma_tx;
349 volatile struct alt_sgdma_descriptor *rx_desc =
350 (volatile struct alt_sgdma_descriptor *)&priv->rx_desc[0];
352 /* clear rx desc & wait for sgdma to complete */
353 rx_desc->descriptor_control = 0;
354 rx_sgdma->control = 0;
356 while (rx_sgdma->status & ALT_SGDMA_STATUS_BUSY_MSK) {
357 if (counter++ > ALT_TSE_SGDMA_BUSY_WATCHDOG_CNTR)
361 if (counter >= ALT_TSE_SGDMA_BUSY_WATCHDOG_CNTR) {
362 debug("Timeout waiting for rx sgdma!\n");
363 rx_sgdma->control = ALT_SGDMA_CONTROL_SOFTWARERESET_MSK;
364 rx_sgdma->control = ALT_SGDMA_CONTROL_SOFTWARERESET_MSK;
368 tx_sgdma->control = 0;
369 while (tx_sgdma->status & ALT_SGDMA_STATUS_BUSY_MSK) {
370 if (counter++ > ALT_TSE_SGDMA_BUSY_WATCHDOG_CNTR)
374 if (counter >= ALT_TSE_SGDMA_BUSY_WATCHDOG_CNTR) {
375 debug("Timeout waiting for tx sgdma!\n");
376 tx_sgdma->control = ALT_SGDMA_CONTROL_SOFTWARERESET_MSK;
377 tx_sgdma->control = ALT_SGDMA_CONTROL_SOFTWARERESET_MSK;
380 mac_dev->command_config.bits.transmit_enable = 1;
381 mac_dev->command_config.bits.receive_enable = 1;
382 mac_dev->command_config.bits.software_reset = 1;
385 while (mac_dev->command_config.bits.software_reset) {
386 if (counter++ > ALT_TSE_SW_RESET_WATCHDOG_CNTR)
390 if (counter >= ALT_TSE_SW_RESET_WATCHDOG_CNTR)
391 debug("TSEMAC SW reset bit never cleared!\n");
394 static int tse_mdio_read(struct altera_tse_priv *priv, unsigned int regnum)
396 volatile struct alt_tse_mac *mac_dev;
397 unsigned int *mdio_regs;
401 mac_dev = priv->mac_dev;
403 /* set mdio address */
404 mac_dev->mdio_phy1_addr = priv->phyaddr;
405 mdio_regs = (unsigned int *)&mac_dev->mdio_phy1;
408 data = mdio_regs[regnum];
410 value = data & 0xffff;
415 static int tse_mdio_write(struct altera_tse_priv *priv, unsigned int regnum,
418 volatile struct alt_tse_mac *mac_dev;
419 unsigned int *mdio_regs;
422 mac_dev = priv->mac_dev;
424 /* set mdio address */
425 mac_dev->mdio_phy1_addr = priv->phyaddr;
426 mdio_regs = (unsigned int *)&mac_dev->mdio_phy1;
429 data = (unsigned int)value;
431 mdio_regs[regnum] = data;
436 /* MDIO access to phy */
437 #if defined(CONFIG_MII) || defined(CONFIG_CMD_MII) && !defined(BITBANGMII)
438 static int altera_tse_miiphy_write(const char *devname, unsigned char addr,
439 unsigned char reg, unsigned short value)
441 struct eth_device *dev;
442 struct altera_tse_priv *priv;
443 dev = eth_get_dev_by_name(devname);
446 tse_mdio_write(priv, (uint) reg, (uint) value);
451 static int altera_tse_miiphy_read(const char *devname, unsigned char addr,
452 unsigned char reg, unsigned short *value)
454 struct eth_device *dev;
455 struct altera_tse_priv *priv;
456 volatile struct alt_tse_mac *mac_dev;
457 unsigned int *mdio_regs;
459 dev = eth_get_dev_by_name(devname);
462 mac_dev = priv->mac_dev;
463 mac_dev->mdio_phy1_addr = (int)addr;
464 mdio_regs = (unsigned int *)&mac_dev->mdio_phy1;
466 *value = 0xffff & mdio_regs[reg];
474 * Also copied from tsec.c
476 /* Parse the status register for link, and then do
479 static uint mii_parse_sr(uint mii_reg, struct altera_tse_priv *priv)
482 * Wait if the link is up, and autonegotiation is in progress
483 * (ie - we're capable and it's not done)
485 mii_reg = tse_mdio_read(priv, MIIM_STATUS);
487 if (!(mii_reg & MIIM_STATUS_LINK) && (mii_reg & BMSR_ANEGCAPABLE)
488 && !(mii_reg & BMSR_ANEGCOMPLETE)) {
491 puts("Waiting for PHY auto negotiation to complete");
492 while (!(mii_reg & BMSR_ANEGCOMPLETE)) {
496 if (i > PHY_AUTONEGOTIATE_TIMEOUT) {
497 puts(" TIMEOUT !\n");
502 if ((i++ % 1000) == 0)
504 udelay(1000); /* 1 ms */
505 mii_reg = tse_mdio_read(priv, MIIM_STATUS);
509 udelay(500000); /* another 500 ms (results in faster booting) */
511 if (mii_reg & MIIM_STATUS_LINK) {
512 debug("Link is up\n");
515 debug("Link is down\n");
523 /* Parse the 88E1011's status register for speed and duplex
526 static uint mii_parse_88E1011_psr(uint mii_reg, struct altera_tse_priv *priv)
530 mii_reg = tse_mdio_read(priv, MIIM_88E1011_PHY_STATUS);
532 if ((mii_reg & MIIM_88E1011_PHYSTAT_LINK) &&
533 !(mii_reg & MIIM_88E1011_PHYSTAT_SPDDONE)) {
536 puts("Waiting for PHY realtime link");
537 while (!(mii_reg & MIIM_88E1011_PHYSTAT_SPDDONE)) {
538 /* Timeout reached ? */
539 if (i > PHY_AUTONEGOTIATE_TIMEOUT) {
540 puts(" TIMEOUT !\n");
545 if ((i++ == 1000) == 0) {
549 udelay(1000); /* 1 ms */
550 mii_reg = tse_mdio_read(priv, MIIM_88E1011_PHY_STATUS);
553 udelay(500000); /* another 500 ms (results in faster booting) */
555 if (mii_reg & MIIM_88E1011_PHYSTAT_LINK)
561 if (mii_reg & MIIM_88E1011_PHYSTAT_DUPLEX)
566 speed = (mii_reg & MIIM_88E1011_PHYSTAT_SPEED);
569 case MIIM_88E1011_PHYSTAT_GBIT:
571 debug("PHY Speed is 1000Mbit\n");
573 case MIIM_88E1011_PHYSTAT_100:
574 debug("PHY Speed is 100Mbit\n");
578 debug("PHY Speed is 10Mbit\n");
585 static uint mii_m88e1111s_setmode_sr(uint mii_reg, struct altera_tse_priv *priv)
587 uint mii_data = tse_mdio_read(priv, mii_reg);
589 if ((priv->flags >= 1) && (priv->flags <= 4))
591 else if (priv->flags == 5)
597 static uint mii_m88e1111s_setmode_cr(uint mii_reg, struct altera_tse_priv *priv)
599 uint mii_data = tse_mdio_read(priv, mii_reg);
601 if ((priv->flags >= 1) && (priv->flags <= 4))
608 * Returns which value to write to the control register.
609 * For 10/100, the value is slightly different
611 static uint mii_cr_init(uint mii_reg, struct altera_tse_priv *priv)
613 return MIIM_CONTROL_INIT;
618 * Need to add SGMII stuff
622 static struct phy_info phy_info_M88E1111S = {
626 (struct phy_cmd[]){ /* config */
627 /* Reset and configure the PHY */
628 {MIIM_CONTROL, MIIM_CONTROL_RESET, NULL},
629 {MIIM_88E1111_PHY_EXT_SR, 0x848f,
630 &mii_m88e1111s_setmode_sr},
631 /* Delay RGMII TX and RX */
632 {MIIM_88E1111_PHY_EXT_CR, 0x0cd2,
633 &mii_m88e1111s_setmode_cr},
634 {MIIM_GBIT_CONTROL, MIIM_GBIT_CONTROL_INIT, NULL},
635 {MIIM_ANAR, MIIM_ANAR_INIT, NULL},
636 {MIIM_CONTROL, MIIM_CONTROL_RESET, NULL},
637 {MIIM_CONTROL, MIIM_CONTROL_INIT, &mii_cr_init},
640 (struct phy_cmd[]){ /* startup */
641 /* Status is read once to clear old link state */
642 {MIIM_STATUS, miim_read, NULL},
644 {MIIM_STATUS, miim_read, &mii_parse_sr},
645 /* Read the status */
646 {MIIM_88E1011_PHY_STATUS, miim_read,
647 &mii_parse_88E1011_psr},
650 (struct phy_cmd[]){ /* shutdown */
655 /* a generic flavor. */
656 static struct phy_info phy_info_generic = {
658 "Unknown/Generic PHY",
660 (struct phy_cmd[]){ /* config */
661 {MII_BMCR, BMCR_RESET, NULL},
662 {MII_BMCR, BMCR_ANENABLE | BMCR_ANRESTART, NULL},
665 (struct phy_cmd[]){ /* startup */
666 {MII_BMSR, miim_read, NULL},
667 {MII_BMSR, miim_read, &mii_parse_sr},
670 (struct phy_cmd[]){ /* shutdown */
675 static struct phy_info *phy_info[] = {
680 /* Grab the identifier of the device's PHY, and search through
681 * all of the known PHYs to see if one matches. If so, return
682 * it, if not, return NULL
684 static struct phy_info *get_phy_info(struct eth_device *dev)
686 struct altera_tse_priv *priv = (struct altera_tse_priv *)dev->priv;
687 uint phy_reg, phy_ID;
689 struct phy_info *theInfo = NULL;
691 /* Grab the bits from PHYIR1, and put them in the upper half */
692 phy_reg = tse_mdio_read(priv, MIIM_PHYIR1);
693 phy_ID = (phy_reg & 0xffff) << 16;
695 /* Grab the bits from PHYIR2, and put them in the lower half */
696 phy_reg = tse_mdio_read(priv, MIIM_PHYIR2);
697 phy_ID |= (phy_reg & 0xffff);
699 /* loop through all the known PHY types, and find one that */
700 /* matches the ID we read from the PHY. */
701 for (i = 0; phy_info[i]; i++) {
702 if (phy_info[i]->id == (phy_ID >> phy_info[i]->shift)) {
703 theInfo = phy_info[i];
708 if (theInfo == NULL) {
709 theInfo = &phy_info_generic;
710 debug("%s: No support for PHY id %x; assuming generic\n",
713 debug("%s: PHY is %s (%x)\n", dev->name, theInfo->name, phy_ID);
718 /* Execute the given series of commands on the given device's
719 * PHY, running functions as necessary
721 static void phy_run_commands(struct altera_tse_priv *priv, struct phy_cmd *cmd)
726 for (i = 0; cmd->mii_reg != miim_end; i++) {
727 if (cmd->mii_data == miim_read) {
728 result = tse_mdio_read(priv, cmd->mii_reg);
730 if (cmd->funct != NULL)
731 (*(cmd->funct)) (result, priv);
734 if (cmd->funct != NULL)
735 result = (*(cmd->funct)) (cmd->mii_reg, priv);
737 result = cmd->mii_data;
739 tse_mdio_write(priv, cmd->mii_reg, result);
747 static int init_phy(struct eth_device *dev)
749 struct altera_tse_priv *priv = (struct altera_tse_priv *)dev->priv;
750 struct phy_info *curphy;
752 /* Get the cmd structure corresponding to the attached
754 curphy = get_phy_info(dev);
756 if (curphy == NULL) {
757 priv->phyinfo = NULL;
758 debug("%s: No PHY found\n", dev->name);
762 debug("%s found\n", curphy->name);
763 priv->phyinfo = curphy;
765 phy_run_commands(priv, priv->phyinfo->config);
770 static int tse_set_mac_address(struct eth_device *dev)
772 struct altera_tse_priv *priv = dev->priv;
773 volatile struct alt_tse_mac *mac_dev = priv->mac_dev;
775 debug("Setting MAC address to 0x%02x%02x%02x%02x%02x%02x\n",
776 dev->enetaddr[5], dev->enetaddr[4],
777 dev->enetaddr[3], dev->enetaddr[2],
778 dev->enetaddr[1], dev->enetaddr[0]);
779 mac_dev->mac_addr_0 = ((dev->enetaddr[3]) << 24 |
780 (dev->enetaddr[2]) << 16 |
781 (dev->enetaddr[1]) << 8 | (dev->enetaddr[0]));
783 mac_dev->mac_addr_1 = ((dev->enetaddr[5] << 8 |
784 (dev->enetaddr[4])) & 0xFFFF);
786 /* Set the MAC address */
787 mac_dev->supp_mac_addr_0_0 = mac_dev->mac_addr_0;
788 mac_dev->supp_mac_addr_0_1 = mac_dev->mac_addr_1;
790 /* Set the MAC address */
791 mac_dev->supp_mac_addr_1_0 = mac_dev->mac_addr_0;
792 mac_dev->supp_mac_addr_1_1 = mac_dev->mac_addr_1;
794 /* Set the MAC address */
795 mac_dev->supp_mac_addr_2_0 = mac_dev->mac_addr_0;
796 mac_dev->supp_mac_addr_2_1 = mac_dev->mac_addr_1;
798 /* Set the MAC address */
799 mac_dev->supp_mac_addr_3_0 = mac_dev->mac_addr_0;
800 mac_dev->supp_mac_addr_3_1 = mac_dev->mac_addr_1;
804 static int tse_eth_init(struct eth_device *dev, bd_t * bd)
807 struct altera_tse_priv *priv = dev->priv;
808 volatile struct alt_tse_mac *mac_dev = priv->mac_dev;
809 volatile struct alt_sgdma_descriptor *tx_desc = priv->tx_desc;
810 volatile struct alt_sgdma_descriptor *rx_desc = priv->rx_desc;
811 volatile struct alt_sgdma_descriptor *rx_desc_cur =
812 (volatile struct alt_sgdma_descriptor *)&rx_desc[0];
814 /* stop controller */
815 debug("Reseting TSE & SGDMAs\n");
819 debug("Configuring PHY\n");
820 phy_run_commands(priv, priv->phyinfo->startup);
822 /* need to create sgdma */
823 debug("Configuring tx desc\n");
824 alt_sgdma_construct_descriptor_burst(
825 (volatile struct alt_sgdma_descriptor *)&tx_desc[0],
826 (volatile struct alt_sgdma_descriptor *)&tx_desc[1],
827 (unsigned int *)NULL, /* read addr */
829 0, /* length or EOP ,will change for each tx */
831 0x0, /* read fixed */
832 0x1, /* write fixed or sop */
833 0x0, /* read burst */
834 0x0, /* write burst */
837 debug("Configuring rx desc\n");
838 flush_dcache_range((unsigned long)(NetRxPackets[0]),
839 (unsigned long)(NetRxPackets[0]) + PKTSIZE_ALIGN);
840 alt_sgdma_construct_descriptor_burst(
841 (volatile struct alt_sgdma_descriptor *)&rx_desc[0],
842 (volatile struct alt_sgdma_descriptor *)&rx_desc[1],
843 (unsigned int)0x0, /* read addr */
844 (unsigned int *)NetRxPackets[0],
845 0x0, /* length or EOP */
847 0x0, /* read fixed */
848 0x0, /* write fixed or sop */
849 0x0, /* read burst */
850 0x0, /* write burst */
853 /* start rx async transfer */
854 debug("Starting rx sgdma\n");
855 alt_sgdma_do_async_transfer(priv->sgdma_rx, rx_desc_cur);
858 debug("Configuring TSE Mac\n");
859 /* Initialize MAC registers */
860 mac_dev->max_frame_length = PKTSIZE_ALIGN;
861 mac_dev->rx_almost_empty_threshold = 8;
862 mac_dev->rx_almost_full_threshold = 8;
863 mac_dev->tx_almost_empty_threshold = 8;
864 mac_dev->tx_almost_full_threshold = 3;
865 mac_dev->tx_sel_empty_threshold =
866 CONFIG_SYS_ALTERA_TSE_TX_FIFO - 16;
867 mac_dev->tx_sel_full_threshold = 0;
868 mac_dev->rx_sel_empty_threshold =
869 CONFIG_SYS_ALTERA_TSE_TX_FIFO - 16;
870 mac_dev->rx_sel_full_threshold = 0;
873 mac_dev->rx_cmd_stat.bits.rx_shift16 = 0;
874 mac_dev->tx_cmd_stat.bits.tx_shift16 = 0;
878 dat = ALTERA_TSE_CMD_TX_ENA_MSK | ALTERA_TSE_CMD_RX_ENA_MSK;
880 mac_dev->command_config.image = dat;
882 /* configure the TSE core */
883 /* -- output clocks, */
884 /* -- and later config stuff for SGMII */
886 debug("Adjusting TSE to link speed\n");
887 tse_adjust_link(priv);
890 return priv->link ? 0 : -1;
894 int altera_tse_initialize(u8 dev_num, int mac_base,
895 int sgdma_rx_base, int sgdma_tx_base,
896 u32 sgdma_desc_base, u32 sgdma_desc_size)
898 struct altera_tse_priv *priv;
899 struct eth_device *dev;
900 struct alt_sgdma_descriptor *rx_desc;
901 struct alt_sgdma_descriptor *tx_desc;
902 unsigned long dma_handle;
904 dev = (struct eth_device *)malloc(sizeof *dev);
909 memset(dev, 0, sizeof *dev);
911 priv = malloc(sizeof(*priv));
917 if (sgdma_desc_size) {
918 if (sgdma_desc_size < (sizeof(*tx_desc) * (3 + PKTBUFSRX))) {
919 printf("ALTERA_TSE-%hu: "
920 "descriptor memory is too small\n", dev_num);
925 tx_desc = (struct alt_sgdma_descriptor *)sgdma_desc_base;
927 tx_desc = dma_alloc_coherent(sizeof(*tx_desc) * (3 + PKTBUFSRX),
931 rx_desc = tx_desc + 2;
932 debug("tx desc: address = 0x%x\n", (unsigned int)tx_desc);
933 debug("rx desc: address = 0x%x\n", (unsigned int)rx_desc);
940 memset(rx_desc, 0, (sizeof *rx_desc) * (PKTBUFSRX + 1));
941 memset(tx_desc, 0, (sizeof *tx_desc) * 2);
943 /* initialize tse priv */
944 priv->mac_dev = (volatile struct alt_tse_mac *)mac_base;
945 priv->sgdma_rx = (volatile struct alt_sgdma_registers *)sgdma_rx_base;
946 priv->sgdma_tx = (volatile struct alt_sgdma_registers *)sgdma_tx_base;
947 priv->phyaddr = CONFIG_SYS_ALTERA_TSE_PHY_ADDR;
948 priv->flags = CONFIG_SYS_ALTERA_TSE_FLAGS;
949 priv->rx_desc = rx_desc;
950 priv->tx_desc = tx_desc;
952 /* init eth structure */
954 dev->init = tse_eth_init;
955 dev->halt = tse_eth_halt;
956 dev->send = tse_eth_send;
957 dev->recv = tse_eth_rx;
958 dev->write_hwaddr = tse_set_mac_address;
959 sprintf(dev->name, "%s-%hu", "ALTERA_TSE", dev_num);
963 #if defined(CONFIG_MII) || defined(CONFIG_CMD_MII) && !defined(BITBANGMII)
964 miiphy_register(dev->name, altera_tse_miiphy_read,
965 altera_tse_miiphy_write);