blob: 63ea2cca9b1090e8945d46ec35458d1da10d6535 [file] [log] [blame]
wdenka8bd82d2004-04-18 22:03:42 +00001/*
2 * rtl8169.c : U-Boot driver for the RealTek RTL8169
3 *
4 * Masami Komiya (mkomiya@sonare.it)
5 *
6 * Most part is taken from r8169.c of etherboot
7 *
8 */
9
10/**************************************************************************
11* r8169.c: Etherboot device driver for the RealTek RTL-8169 Gigabit
12* Written 2003 by Timothy Legge <tlegge@rogers.com>
13*
14* This program is free software; you can redistribute it and/or modify
15* it under the terms of the GNU General Public License as published by
16* the Free Software Foundation; either version 2 of the License, or
17* (at your option) any later version.
18*
19* This program is distributed in the hope that it will be useful,
20* but WITHOUT ANY WARRANTY; without even the implied warranty of
21* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
22* GNU General Public License for more details.
23*
24* You should have received a copy of the GNU General Public License
25* along with this program; if not, write to the Free Software
26* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
27*
28* Portions of this code based on:
29* r8169.c: A RealTek RTL-8169 Gigabit Ethernet driver
30* for Linux kernel 2.4.x.
31*
32* Written 2002 ShuChen <shuchen@realtek.com.tw>
33* See Linux Driver for full information
34*
35* Linux Driver Version 1.27a, 10.02.2002
36*
37* Thanks to:
38* Jean Chen of RealTek Semiconductor Corp. for
39* providing the evaluation NIC used to develop
40* this driver. RealTek's support for Etherboot
41* is appreciated.
42*
43* REVISION HISTORY:
44* ================
45*
46* v1.0 11-26-2003 timlegge Initial port of Linux driver
47* v1.5 01-17-2004 timlegge Initial driver output cleanup
48*
49* Indent Options: indent -kr -i8
50***************************************************************************/
51
52#include <common.h>
53#include <malloc.h>
54#include <net.h>
55#include <asm/io.h>
56#include <pci.h>
57
Jon Loeligercb51c0b2007-07-09 17:39:42 -050058#if defined(CONFIG_CMD_NET) && defined(CONFIG_NET_MULTI) && \
wdenka8bd82d2004-04-18 22:03:42 +000059 defined(CONFIG_RTL8169)
60
61#undef DEBUG_RTL8169
62#undef DEBUG_RTL8169_TX
63#undef DEBUG_RTL8169_RX
64
65#define drv_version "v1.5"
66#define drv_date "01-17-2004"
67
68static u32 ioaddr;
69
70/* Condensed operations for readability. */
71#define virt_to_le32desc(addr) cpu_to_le32(virt_to_bus(addr))
72#define le32desc_to_virt(addr) bus_to_virt(le32_to_cpu(addr))
73
74#define currticks() get_timer(0)
75#define bus_to_phys(a) pci_mem_to_phys((pci_dev_t)dev->priv, a)
76#define phys_to_bus(a) pci_phys_to_mem((pci_dev_t)dev->priv, a)
77
78/* media options */
79#define MAX_UNITS 8
80static int media[MAX_UNITS] = { -1, -1, -1, -1, -1, -1, -1, -1 };
81
82/* MAC address length*/
83#define MAC_ADDR_LEN 6
84
85/* max supported gigabit ethernet frame size -- must be at least (dev->mtu+14+4).*/
86#define MAX_ETH_FRAME_SIZE 1536
87
88#define TX_FIFO_THRESH 256 /* In bytes */
89
90#define RX_FIFO_THRESH 7 /* 7 means NO threshold, Rx buffer level before first PCI xfer. */
91#define RX_DMA_BURST 6 /* Maximum PCI burst, '6' is 1024 */
92#define TX_DMA_BURST 6 /* Maximum PCI burst, '6' is 1024 */
93#define EarlyTxThld 0x3F /* 0x3F means NO early transmit */
94#define RxPacketMaxSize 0x0800 /* Maximum size supported is 16K-1 */
95#define InterFrameGap 0x03 /* 3 means InterFrameGap = the shortest one */
96
97#define NUM_TX_DESC 1 /* Number of Tx descriptor registers */
98#define NUM_RX_DESC 4 /* Number of Rx descriptor registers */
99#define RX_BUF_SIZE 1536 /* Rx Buffer size */
100#define RX_BUF_LEN 8192
101
102#define RTL_MIN_IO_SIZE 0x80
103#define TX_TIMEOUT (6*HZ)
104
105/* write/read MMIO register */
106#define RTL_W8(reg, val8) writeb ((val8), ioaddr + (reg))
107#define RTL_W16(reg, val16) writew ((val16), ioaddr + (reg))
108#define RTL_W32(reg, val32) writel ((val32), ioaddr + (reg))
109#define RTL_R8(reg) readb (ioaddr + (reg))
110#define RTL_R16(reg) readw (ioaddr + (reg))
111#define RTL_R32(reg) ((unsigned long) readl (ioaddr + (reg)))
112
113#define ETH_FRAME_LEN MAX_ETH_FRAME_SIZE
114#define ETH_ALEN MAC_ADDR_LEN
115#define ETH_ZLEN 60
116
117enum RTL8169_registers {
118 MAC0 = 0, /* Ethernet hardware address. */
119 MAR0 = 8, /* Multicast filter. */
120 TxDescStartAddr = 0x20,
121 TxHDescStartAddr = 0x28,
122 FLASH = 0x30,
123 ERSR = 0x36,
124 ChipCmd = 0x37,
125 TxPoll = 0x38,
126 IntrMask = 0x3C,
127 IntrStatus = 0x3E,
128 TxConfig = 0x40,
129 RxConfig = 0x44,
130 RxMissed = 0x4C,
131 Cfg9346 = 0x50,
132 Config0 = 0x51,
133 Config1 = 0x52,
134 Config2 = 0x53,
135 Config3 = 0x54,
136 Config4 = 0x55,
137 Config5 = 0x56,
138 MultiIntr = 0x5C,
139 PHYAR = 0x60,
140 TBICSR = 0x64,
141 TBI_ANAR = 0x68,
142 TBI_LPAR = 0x6A,
143 PHYstatus = 0x6C,
144 RxMaxSize = 0xDA,
145 CPlusCmd = 0xE0,
146 RxDescStartAddr = 0xE4,
147 EarlyTxThres = 0xEC,
148 FuncEvent = 0xF0,
149 FuncEventMask = 0xF4,
150 FuncPresetState = 0xF8,
151 FuncForceEvent = 0xFC,
152};
153
154enum RTL8169_register_content {
155 /*InterruptStatusBits */
156 SYSErr = 0x8000,
157 PCSTimeout = 0x4000,
158 SWInt = 0x0100,
159 TxDescUnavail = 0x80,
160 RxFIFOOver = 0x40,
161 RxUnderrun = 0x20,
162 RxOverflow = 0x10,
163 TxErr = 0x08,
164 TxOK = 0x04,
165 RxErr = 0x02,
166 RxOK = 0x01,
167
168 /*RxStatusDesc */
169 RxRES = 0x00200000,
170 RxCRC = 0x00080000,
171 RxRUNT = 0x00100000,
172 RxRWT = 0x00400000,
173
174 /*ChipCmdBits */
175 CmdReset = 0x10,
176 CmdRxEnb = 0x08,
177 CmdTxEnb = 0x04,
178 RxBufEmpty = 0x01,
179
180 /*Cfg9346Bits */
181 Cfg9346_Lock = 0x00,
182 Cfg9346_Unlock = 0xC0,
183
184 /*rx_mode_bits */
185 AcceptErr = 0x20,
186 AcceptRunt = 0x10,
187 AcceptBroadcast = 0x08,
188 AcceptMulticast = 0x04,
189 AcceptMyPhys = 0x02,
190 AcceptAllPhys = 0x01,
191
192 /*RxConfigBits */
193 RxCfgFIFOShift = 13,
194 RxCfgDMAShift = 8,
195
196 /*TxConfigBits */
197 TxInterFrameGapShift = 24,
198 TxDMAShift = 8, /* DMA burst value (0-7) is shift this many bits */
199
200 /*rtl8169_PHYstatus */
201 TBI_Enable = 0x80,
202 TxFlowCtrl = 0x40,
203 RxFlowCtrl = 0x20,
204 _1000bpsF = 0x10,
205 _100bps = 0x08,
206 _10bps = 0x04,
207 LinkStatus = 0x02,
208 FullDup = 0x01,
209
210 /*GIGABIT_PHY_registers */
211 PHY_CTRL_REG = 0,
212 PHY_STAT_REG = 1,
213 PHY_AUTO_NEGO_REG = 4,
214 PHY_1000_CTRL_REG = 9,
215
216 /*GIGABIT_PHY_REG_BIT */
217 PHY_Restart_Auto_Nego = 0x0200,
218 PHY_Enable_Auto_Nego = 0x1000,
219
220 /* PHY_STAT_REG = 1; */
221 PHY_Auto_Neco_Comp = 0x0020,
222
223 /* PHY_AUTO_NEGO_REG = 4; */
224 PHY_Cap_10_Half = 0x0020,
225 PHY_Cap_10_Full = 0x0040,
226 PHY_Cap_100_Half = 0x0080,
227 PHY_Cap_100_Full = 0x0100,
228
229 /* PHY_1000_CTRL_REG = 9; */
230 PHY_Cap_1000_Full = 0x0200,
231
232 PHY_Cap_Null = 0x0,
233
234 /*_MediaType*/
235 _10_Half = 0x01,
236 _10_Full = 0x02,
237 _100_Half = 0x04,
238 _100_Full = 0x08,
239 _1000_Full = 0x10,
240
241 /*_TBICSRBit*/
242 TBILinkOK = 0x02000000,
243};
244
245static struct {
246 const char *name;
247 u8 version; /* depend on RTL8169 docs */
248 u32 RxConfigMask; /* should clear the bits supported by this chip */
249} rtl_chip_info[] = {
250 {"RTL-8169", 0x00, 0xff7e1880,},
251 {"RTL-8169", 0x04, 0xff7e1880,},
252};
253
254enum _DescStatusBit {
255 OWNbit = 0x80000000,
256 EORbit = 0x40000000,
257 FSbit = 0x20000000,
258 LSbit = 0x10000000,
259};
260
261struct TxDesc {
262 u32 status;
263 u32 vlan_tag;
264 u32 buf_addr;
265 u32 buf_Haddr;
266};
267
268struct RxDesc {
269 u32 status;
270 u32 vlan_tag;
271 u32 buf_addr;
272 u32 buf_Haddr;
273};
274
275/* Define the TX Descriptor */
276static u8 tx_ring[NUM_TX_DESC * sizeof(struct TxDesc) + 256];
277/* __attribute__ ((aligned(256))); */
278
279/* Create a static buffer of size RX_BUF_SZ for each
280TX Descriptor. All descriptors point to a
281part of this buffer */
282static unsigned char txb[NUM_TX_DESC * RX_BUF_SIZE];
283
284/* Define the RX Descriptor */
285static u8 rx_ring[NUM_RX_DESC * sizeof(struct TxDesc) + 256];
286 /* __attribute__ ((aligned(256))); */
287
288/* Create a static buffer of size RX_BUF_SZ for each
289RX Descriptor All descriptors point to a
290part of this buffer */
291static unsigned char rxb[NUM_RX_DESC * RX_BUF_SIZE];
292
293struct rtl8169_private {
294 void *mmio_addr; /* memory map physical address */
295 int chipset;
296 unsigned long cur_rx; /* Index into the Rx descriptor buffer of next Rx pkt. */
297 unsigned long cur_tx; /* Index into the Tx descriptor buffer of next Rx pkt. */
298 unsigned long dirty_tx;
299 unsigned char *TxDescArrays; /* Index of Tx Descriptor buffer */
300 unsigned char *RxDescArrays; /* Index of Rx Descriptor buffer */
301 struct TxDesc *TxDescArray; /* Index of 256-alignment Tx Descriptor buffer */
302 struct RxDesc *RxDescArray; /* Index of 256-alignment Rx Descriptor buffer */
303 unsigned char *RxBufferRings; /* Index of Rx Buffer */
304 unsigned char *RxBufferRing[NUM_RX_DESC]; /* Index of Rx Buffer array */
305 unsigned char *Tx_skbuff[NUM_TX_DESC];
306} tpx;
307
308static struct rtl8169_private *tpc;
309
310static const u16 rtl8169_intr_mask =
311 SYSErr | PCSTimeout | RxUnderrun | RxOverflow | RxFIFOOver | TxErr |
312 TxOK | RxErr | RxOK;
313static const unsigned int rtl8169_rx_config =
314 (RX_FIFO_THRESH << RxCfgFIFOShift) | (RX_DMA_BURST << RxCfgDMAShift);
315
316static struct pci_device_id supported[] = {
317 {PCI_VENDOR_ID_REALTEK, 0x8169},
318 {}
319};
320
321void mdio_write(int RegAddr, int value)
322{
323 int i;
324
325 RTL_W32(PHYAR, 0x80000000 | (RegAddr & 0xFF) << 16 | value);
326 udelay(1000);
327
328 for (i = 2000; i > 0; i--) {
329 /* Check if the RTL8169 has completed writing to the specified MII register */
330 if (!(RTL_R32(PHYAR) & 0x80000000)) {
331 break;
332 } else {
333 udelay(100);
334 }
335 }
336}
337
338int mdio_read(int RegAddr)
339{
340 int i, value = -1;
341
342 RTL_W32(PHYAR, 0x0 | (RegAddr & 0xFF) << 16);
343 udelay(1000);
344
345 for (i = 2000; i > 0; i--) {
346 /* Check if the RTL8169 has completed retrieving data from the specified MII register */
347 if (RTL_R32(PHYAR) & 0x80000000) {
348 value = (int) (RTL_R32(PHYAR) & 0xFFFF);
349 break;
350 } else {
351 udelay(100);
352 }
353 }
354 return value;
355}
356
357#define ARRAY_SIZE(x) (sizeof(x) / sizeof((x)[0]))
358
359static int rtl8169_init_board(struct eth_device *dev)
360{
361 int i;
362 u32 tmp;
363
364#ifdef DEBUG_RTL8169
365 printf ("%s\n", __FUNCTION__);
366#endif
367 ioaddr = dev->iobase;
368
369 /* Soft reset the chip. */
370 RTL_W8(ChipCmd, CmdReset);
371
372 /* Check that the chip has finished the reset. */
373 for (i = 1000; i > 0; i--)
374 if ((RTL_R8(ChipCmd) & CmdReset) == 0)
375 break;
376 else
377 udelay(10);
378
379 /* identify chip attached to board */
380 tmp = RTL_R32(TxConfig);
381 tmp = ((tmp & 0x7c000000) + ((tmp & 0x00800000) << 2)) >> 24;
382
383 for (i = ARRAY_SIZE(rtl_chip_info) - 1; i >= 0; i--){
384 if (tmp == rtl_chip_info[i].version) {
385 tpc->chipset = i;
386 goto match;
387 }
388 }
389
390 /* if unknown chip, assume array element #0, original RTL-8169 in this case */
391 printf("PCI device %s: unknown chip version, assuming RTL-8169\n", dev->name);
392 printf("PCI device: TxConfig = 0x%hX\n", (unsigned long) RTL_R32(TxConfig));
393 tpc->chipset = 0;
394
395match:
396 return 0;
397}
398
399/**************************************************************************
400RECV - Receive a frame
401***************************************************************************/
402static int rtl_recv(struct eth_device *dev)
403{
404 /* return true if there's an ethernet packet ready to read */
405 /* nic->packet should contain data on return */
406 /* nic->packetlen should contain length of data */
407 int cur_rx;
408 int length = 0;
409
410#ifdef DEBUG_RTL8169_RX
411 printf ("%s\n", __FUNCTION__);
412#endif
413 ioaddr = dev->iobase;
414
415 cur_rx = tpc->cur_rx;
416 if ((tpc->RxDescArray[cur_rx].status & OWNbit) == 0) {
417 if (!(tpc->RxDescArray[cur_rx].status & RxRES)) {
418 unsigned char rxdata[RX_BUF_LEN];
419 length = (int) (tpc->RxDescArray[cur_rx].
420 status & 0x00001FFF) - 4;
421
422 memcpy(rxdata, tpc->RxBufferRing[cur_rx], length);
423 NetReceive(rxdata, length);
424
425 if (cur_rx == NUM_RX_DESC - 1)
426 tpc->RxDescArray[cur_rx].status =
427 (OWNbit | EORbit) + RX_BUF_SIZE;
428 else
429 tpc->RxDescArray[cur_rx].status =
430 OWNbit + RX_BUF_SIZE;
431 tpc->RxDescArray[cur_rx].buf_addr =
432 virt_to_bus(tpc->RxBufferRing[cur_rx]);
433 } else {
434 puts("Error Rx");
435 }
436 cur_rx = (cur_rx + 1) % NUM_RX_DESC;
437 tpc->cur_rx = cur_rx;
438 return 1;
439
440 }
441 tpc->cur_rx = cur_rx;
442 return (0); /* initially as this is called to flush the input */
443}
444
445#define HZ 1000
446/**************************************************************************
447SEND - Transmit a frame
448***************************************************************************/
449static int rtl_send(struct eth_device *dev, volatile void *packet, int length)
450{
451 /* send the packet to destination */
452
453 u32 to;
454 u8 *ptxb;
455 int entry = tpc->cur_tx % NUM_TX_DESC;
456 u32 len = length;
457
458#ifdef DEBUG_RTL8169_TX
459 int stime = currticks();
460 printf ("%s\n", __FUNCTION__);
461 printf("sending %d bytes\n", len);
462#endif
463
464 ioaddr = dev->iobase;
465
466 /* point to the current txb incase multiple tx_rings are used */
467 ptxb = tpc->Tx_skbuff[entry * MAX_ETH_FRAME_SIZE];
468 memcpy(ptxb, (char *)packet, (int)length);
469
470 while (len < ETH_ZLEN)
471 ptxb[len++] = '\0';
472
473 tpc->TxDescArray[entry].buf_addr = virt_to_bus(ptxb);
474 if (entry != (NUM_TX_DESC - 1)) {
475 tpc->TxDescArray[entry].status =
476 (OWNbit | FSbit | LSbit) | ((len > ETH_ZLEN) ?
477 len : ETH_ZLEN);
478 } else {
479 tpc->TxDescArray[entry].status =
480 (OWNbit | EORbit | FSbit | LSbit) |
481 ((len > ETH_ZLEN) ? length : ETH_ZLEN);
482 }
483 RTL_W8(TxPoll, 0x40); /* set polling bit */
484
485 tpc->cur_tx++;
486 to = currticks() + TX_TIMEOUT;
487 while ((tpc->TxDescArray[entry].status & OWNbit) && (currticks() < to)); /* wait */
488
489 if (currticks() >= to) {
490#ifdef DEBUG_RTL8169_TX
491 puts ("tx timeout/error\n");
492 printf ("%s elapsed time : %d\n", __FUNCTION__, currticks()-stime);
493#endif
494 return 0;
495 } else {
496#ifdef DEBUG_RTL8169_TX
497 puts("tx done\n");
498#endif
499 return length;
500 }
501}
502
503static void rtl8169_set_rx_mode(struct eth_device *dev)
504{
505 u32 mc_filter[2]; /* Multicast hash filter */
506 int rx_mode;
507 u32 tmp = 0;
508
509#ifdef DEBUG_RTL8169
510 printf ("%s\n", __FUNCTION__);
511#endif
512
513 /* IFF_ALLMULTI */
514 /* Too many to filter perfectly -- accept all multicasts. */
515 rx_mode = AcceptBroadcast | AcceptMulticast | AcceptMyPhys;
516 mc_filter[1] = mc_filter[0] = 0xffffffff;
517
518 tmp = rtl8169_rx_config | rx_mode | (RTL_R32(RxConfig) &
519 rtl_chip_info[tpc->chipset].RxConfigMask);
520
521 RTL_W32(RxConfig, tmp);
522 RTL_W32(MAR0 + 0, mc_filter[0]);
523 RTL_W32(MAR0 + 4, mc_filter[1]);
524}
525
526static void rtl8169_hw_start(struct eth_device *dev)
527{
528 u32 i;
529
530#ifdef DEBUG_RTL8169
531 int stime = currticks();
532 printf ("%s\n", __FUNCTION__);
533#endif
534
535#if 0
536 /* Soft reset the chip. */
537 RTL_W8(ChipCmd, CmdReset);
538
539 /* Check that the chip has finished the reset. */
540 for (i = 1000; i > 0; i--) {
541 if ((RTL_R8(ChipCmd) & CmdReset) == 0)
542 break;
543 else
544 udelay(10);
545 }
546#endif
547
548 RTL_W8(Cfg9346, Cfg9346_Unlock);
549 RTL_W8(ChipCmd, CmdTxEnb | CmdRxEnb);
550 RTL_W8(EarlyTxThres, EarlyTxThld);
551
552 /* For gigabit rtl8169 */
553 RTL_W16(RxMaxSize, RxPacketMaxSize);
554
555 /* Set Rx Config register */
556 i = rtl8169_rx_config | (RTL_R32(RxConfig) &
557 rtl_chip_info[tpc->chipset].RxConfigMask);
558 RTL_W32(RxConfig, i);
559
560 /* Set DMA burst size and Interframe Gap Time */
561 RTL_W32(TxConfig, (TX_DMA_BURST << TxDMAShift) |
562 (InterFrameGap << TxInterFrameGapShift));
563
564
565 tpc->cur_rx = 0;
566
567 RTL_W32(TxDescStartAddr, virt_to_le32desc(tpc->TxDescArray));
568 RTL_W32(RxDescStartAddr, virt_to_le32desc(tpc->RxDescArray));
569 RTL_W8(Cfg9346, Cfg9346_Lock);
570 udelay(10);
571
572 RTL_W32(RxMissed, 0);
573
574 rtl8169_set_rx_mode(dev);
575
576 /* no early-rx interrupts */
577 RTL_W16(MultiIntr, RTL_R16(MultiIntr) & 0xF000);
578
579#ifdef DEBUG_RTL8169
580 printf ("%s elapsed time : %d\n", __FUNCTION__, currticks()-stime);
581#endif
582}
583
584static void rtl8169_init_ring(struct eth_device *dev)
585{
586 int i;
587
588#ifdef DEBUG_RTL8169
589 int stime = currticks();
590 printf ("%s\n", __FUNCTION__);
591#endif
592
593 tpc->cur_rx = 0;
594 tpc->cur_tx = 0;
595 tpc->dirty_tx = 0;
596 memset(tpc->TxDescArray, 0x0, NUM_TX_DESC * sizeof(struct TxDesc));
597 memset(tpc->RxDescArray, 0x0, NUM_RX_DESC * sizeof(struct RxDesc));
598
599 for (i = 0; i < NUM_TX_DESC; i++) {
600 tpc->Tx_skbuff[i] = &txb[i];
601 }
602
603 for (i = 0; i < NUM_RX_DESC; i++) {
604 if (i == (NUM_RX_DESC - 1))
605 tpc->RxDescArray[i].status =
606 (OWNbit | EORbit) + RX_BUF_SIZE;
607 else
608 tpc->RxDescArray[i].status = OWNbit + RX_BUF_SIZE;
609
610 tpc->RxBufferRing[i] = &rxb[i * RX_BUF_SIZE];
611 tpc->RxDescArray[i].buf_addr =
612 virt_to_bus(tpc->RxBufferRing[i]);
613 }
614
615#ifdef DEBUG_RTL8169
616 printf ("%s elapsed time : %d\n", __FUNCTION__, currticks()-stime);
617#endif
618}
619
620/**************************************************************************
621RESET - Finish setting up the ethernet interface
622***************************************************************************/
623static void rtl_reset(struct eth_device *dev, bd_t *bis)
624{
625 int i;
626 u8 diff;
627 u32 TxPhyAddr, RxPhyAddr;
628
629#ifdef DEBUG_RTL8169
630 int stime = currticks();
631 printf ("%s\n", __FUNCTION__);
632#endif
633
634 tpc->TxDescArrays = tx_ring;
635 if (tpc->TxDescArrays == 0)
636 puts("Allot Error");
637 /* Tx Desscriptor needs 256 bytes alignment; */
638 TxPhyAddr = virt_to_bus(tpc->TxDescArrays);
639 diff = 256 - (TxPhyAddr - ((TxPhyAddr >> 8) << 8));
640 TxPhyAddr += diff;
641 tpc->TxDescArray = (struct TxDesc *) (tpc->TxDescArrays + diff);
642
643 tpc->RxDescArrays = rx_ring;
644 /* Rx Desscriptor needs 256 bytes alignment; */
645 RxPhyAddr = virt_to_bus(tpc->RxDescArrays);
646 diff = 256 - (RxPhyAddr - ((RxPhyAddr >> 8) << 8));
647 RxPhyAddr += diff;
648 tpc->RxDescArray = (struct RxDesc *) (tpc->RxDescArrays + diff);
649
650 if (tpc->TxDescArrays == NULL || tpc->RxDescArrays == NULL) {
651 puts("Allocate RxDescArray or TxDescArray failed\n");
652 return;
653 }
654
655 rtl8169_init_ring(dev);
656 rtl8169_hw_start(dev);
657 /* Construct a perfect filter frame with the mac address as first match
658 * and broadcast for all others */
659 for (i = 0; i < 192; i++)
660 txb[i] = 0xFF;
661
662 txb[0] = dev->enetaddr[0];
663 txb[1] = dev->enetaddr[1];
664 txb[2] = dev->enetaddr[2];
665 txb[3] = dev->enetaddr[3];
666 txb[4] = dev->enetaddr[4];
667 txb[5] = dev->enetaddr[5];
668
669#ifdef DEBUG_RTL8169
670 printf ("%s elapsed time : %d\n", __FUNCTION__, currticks()-stime);
671#endif
672}
673
674/**************************************************************************
675HALT - Turn off ethernet interface
676***************************************************************************/
677static void rtl_halt(struct eth_device *dev)
678{
679 int i;
680
681#ifdef DEBUG_RTL8169
682 printf ("%s\n", __FUNCTION__);
683#endif
684
685 ioaddr = dev->iobase;
686
687 /* Stop the chip's Tx and Rx DMA processes. */
688 RTL_W8(ChipCmd, 0x00);
689
690 /* Disable interrupts by clearing the interrupt mask. */
691 RTL_W16(IntrMask, 0x0000);
692
693 RTL_W32(RxMissed, 0);
694
695 tpc->TxDescArrays = NULL;
696 tpc->RxDescArrays = NULL;
697 tpc->TxDescArray = NULL;
698 tpc->RxDescArray = NULL;
699 for (i = 0; i < NUM_RX_DESC; i++) {
700 tpc->RxBufferRing[i] = NULL;
701 }
702}
703
704/**************************************************************************
705INIT - Look for an adapter, this routine's visible to the outside
706***************************************************************************/
707
708#define board_found 1
709#define valid_link 0
710static int rtl_init(struct eth_device *dev, bd_t *bis)
711{
712 static int board_idx = -1;
713 static int printed_version = 0;
714 int i, rc;
715 int option = -1, Cap10_100 = 0, Cap1000 = 0;
716
717#ifdef DEBUG_RTL8169
718 printf ("%s\n", __FUNCTION__);
719#endif
720
721 ioaddr = dev->iobase;
722
723 board_idx++;
724
725 printed_version = 1;
726
727 /* point to private storage */
728 tpc = &tpx;
729
730 rc = rtl8169_init_board(dev);
731 if (rc)
732 return rc;
733
734 /* Get MAC address. FIXME: read EEPROM */
735 for (i = 0; i < MAC_ADDR_LEN; i++)
736 dev->enetaddr[i] = RTL_R8(MAC0 + i);
737
738#ifdef DEBUG_RTL8169
739 printf("MAC Address");
740 for (i = 0; i < MAC_ADDR_LEN; i++)
741 printf(":%02x", dev->enetaddr[i]);
742 putc('\n');
743#endif
744
745#ifdef DEBUG_RTL8169
746 /* Print out some hardware info */
747 printf("%s: at ioaddr 0x%x\n", dev->name, ioaddr);
748#endif
749
750 /* if TBI is not endbled */
751 if (!(RTL_R8(PHYstatus) & TBI_Enable)) {
752 int val = mdio_read(PHY_AUTO_NEGO_REG);
753
754 option = (board_idx >= MAX_UNITS) ? 0 : media[board_idx];
755 /* Force RTL8169 in 10/100/1000 Full/Half mode. */
756 if (option > 0) {
757#ifdef DEBUG_RTL8169
758 printf("%s: Force-mode Enabled.\n", dev->name);
759#endif
760 Cap10_100 = 0, Cap1000 = 0;
761 switch (option) {
762 case _10_Half:
763 Cap10_100 = PHY_Cap_10_Half;
764 Cap1000 = PHY_Cap_Null;
765 break;
766 case _10_Full:
767 Cap10_100 = PHY_Cap_10_Full;
768 Cap1000 = PHY_Cap_Null;
769 break;
770 case _100_Half:
771 Cap10_100 = PHY_Cap_100_Half;
772 Cap1000 = PHY_Cap_Null;
773 break;
774 case _100_Full:
775 Cap10_100 = PHY_Cap_100_Full;
776 Cap1000 = PHY_Cap_Null;
777 break;
778 case _1000_Full:
779 Cap10_100 = PHY_Cap_Null;
780 Cap1000 = PHY_Cap_1000_Full;
781 break;
782 default:
783 break;
784 }
785 mdio_write(PHY_AUTO_NEGO_REG, Cap10_100 | (val & 0x1F)); /* leave PHY_AUTO_NEGO_REG bit4:0 unchanged */
786 mdio_write(PHY_1000_CTRL_REG, Cap1000);
787 } else {
788#ifdef DEBUG_RTL8169
789 printf("%s: Auto-negotiation Enabled.\n",
790 dev->name);
791#endif
792 /* enable 10/100 Full/Half Mode, leave PHY_AUTO_NEGO_REG bit4:0 unchanged */
793 mdio_write(PHY_AUTO_NEGO_REG,
794 PHY_Cap_10_Half | PHY_Cap_10_Full |
795 PHY_Cap_100_Half | PHY_Cap_100_Full |
796 (val & 0x1F));
797
798 /* enable 1000 Full Mode */
799 mdio_write(PHY_1000_CTRL_REG, PHY_Cap_1000_Full);
800
801 }
802
803 /* Enable auto-negotiation and restart auto-nigotiation */
804 mdio_write(PHY_CTRL_REG,
805 PHY_Enable_Auto_Nego | PHY_Restart_Auto_Nego);
806 udelay(100);
807
808 /* wait for auto-negotiation process */
809 for (i = 10000; i > 0; i--) {
810 /* check if auto-negotiation complete */
811 if (mdio_read(PHY_STAT_REG) & PHY_Auto_Neco_Comp) {
812 udelay(100);
813 option = RTL_R8(PHYstatus);
814 if (option & _1000bpsF) {
815#ifdef DEBUG_RTL8169
816 printf("%s: 1000Mbps Full-duplex operation.\n",
817 dev->name);
818#endif
819 } else {
820#ifdef DEBUG_RTL8169
821 printf
822 ("%s: %sMbps %s-duplex operation.\n",
823 dev->name,
824 (option & _100bps) ? "100" :
825 "10",
826 (option & FullDup) ? "Full" :
827 "Half");
828#endif
829 }
830 break;
831 } else {
832 udelay(100);
833 }
834 } /* end for-loop to wait for auto-negotiation process */
835
836 } else {
837 udelay(100);
838#ifdef DEBUG_RTL8169
839 printf
840 ("%s: 1000Mbps Full-duplex operation, TBI Link %s!\n",
841 dev->name,
842 (RTL_R32(TBICSR) & TBILinkOK) ? "OK" : "Failed");
843#endif
844 }
845
846 return 1;
847}
848
849int rtl8169_initialize(bd_t *bis)
850{
851 pci_dev_t devno;
852 int card_number = 0;
853 struct eth_device *dev;
854 u32 iobase;
855 int idx=0;
856
857 while(1){
858 /* Find RTL8169 */
859 if ((devno = pci_find_devices(supported, idx++)) < 0)
860 break;
861
862 pci_read_config_dword(devno, PCI_BASE_ADDRESS_1, &iobase);
863 iobase &= ~0xf;
864
865 debug ("rtl8169: REALTEK RTL8169 @0x%x\n", iobase);
866
867 dev = (struct eth_device *)malloc(sizeof *dev);
868
869 sprintf (dev->name, "RTL8169#%d", card_number);
870
871 dev->priv = (void *) devno;
872 dev->iobase = (int)bus_to_phys(iobase);
873
874 dev->init = rtl_reset;
875 dev->halt = rtl_halt;
876 dev->send = rtl_send;
877 dev->recv = rtl_recv;
878
879 eth_register (dev);
880
881 rtl_init(dev, bis);
882
883 card_number++;
884 }
885 return card_number;
886}
887
888#endif