1 /* -*- Mode:C; c-basic-offset:4; -*- */
2
3 /*
4 Tulip and clone Etherboot Driver
5
6 By Marty Connor (mdc@thinguin.org)
7 Copyright (C) 2001 Entity Cyber, Inc.
8
9 This software may be used and distributed according to the terms
10 of the GNU Public License, incorporated herein by reference.
11
12 As of April 2001 this driver should support most tulip cards that
13 the Linux tulip driver supports because Donald Becker's Linux media
14 detection code is now included.
15
16 Based on Ken Yap's Tulip Etherboot Driver and Donald Becker's
17 Linux Tulip Driver. Supports N-Way speed auto-configuration on
18 MX98715, MX98715A and MX98725. Support inexpensive PCI 10/100 cards
19 based on the Macronix MX987x5 chip, such as the SOHOware Fast
20 model SFA110A, and the LinkSYS model LNE100TX. The NetGear
21 model FA310X, based on the LC82C168 chip is supported.
22 The TRENDnet TE100-PCIA NIC which uses a genuine Intel 21143-PD
23 chipset is supported. Also, Davicom DM9102's.
24
25 Documentation and source code used:
26 Source for Etherboot driver at
27 http://etherboot.sourceforge.net/
28 MX98715A Data Sheet and MX98715A Application Note
29 on http://www.macronix.com/ (PDF format files)
30 Source for Linux tulip driver at
31 http://cesdis.gsfc.nasa.gov/linux/drivers/tulip.html
32
33 Adapted by Ken Yap from
34 FreeBSD netboot DEC 21143 driver
35 Author: David Sharp
36 date: Nov/98
37
38 Some code fragments were taken from verious places, Ken Yap's
39 etherboot, FreeBSD's if_de.c, and various Linux related files.
40 DEC's manuals for the 21143 and SROM format were very helpful.
41 The Linux de driver development page has a number of links to
42 useful related information. Have a look at:
43 ftp://cesdis.gsfc.nasa.gov/pub/linux/drivers/tulip-devel.html
44 */
45
46 /*********************************************************************/
47 /* Revision History */
48 /*********************************************************************/
49
50 /*
51 11 Apr 2001 mdc [patch to etherboot 4.7.24]
52 Major rewrite to include Linux tulip driver media detection
53 code. This driver should support a lot more cards now.
54 16 Jul 2000 mdc 0.75b11
55 Added support for ADMtek 0985 Centaur-P, a "Comet" tulip clone
56 which is used on the LinkSYS LNE100TX v4.x cards. We already
57 support LNE100TX v2.0 cards, which use a different controller.
58 04 Jul 2000 jam ?
59 Added test of status after receiving a packet from the card.
60 Also uncommented the tulip_disable routine. Stray packets
61 seemed to be causing problems.
62 27 Apr 2000 njl ?
63 29 Feb 2000 mdc 0.75b7
64 Increased reset delay to 3 seconds because Macronix cards seem to
65 need more reset time before card comes back to a usable state.
66 26 Feb 2000 mdc 0.75b6
67 Added a 1 second delay after initializing the transmitter because
68 some cards seem to need the time or they drop the first packet
69 transmitted.
70 23 Feb 2000 mdc 0.75b5
71 removed udelay code and used currticks() for more reliable delay
72 code in reset pause and sanity timeouts. Added function prototypes
73 and TX debugging code.
74 21 Feb 2000 mdc patch to Etherboot 4.4.3
75 Incorporated patches from Bob Edwards and Paul Mackerras of
76 Linuxcare's OZLabs to deal with inefficiencies in tulip_transmit
77 and udelay. We now wait for packet transmission to complete
78 (or sanity timeout).
79 04 Feb 2000 Robert.Edwards@anu.edu.au patch to Etherboot 4.4.2
80 patch to tulip.c that implements the automatic selection of the MII
81 interface on cards using the Intel/DEC 21143 reference design, in
82 particular, the TRENDnet TE100-PCIA NIC which uses a genuine Intel
83 21143-PD chipset.
84 11 Jan 2000 mdc 0.75b4
85 Added support for NetGear FA310TX card based on the LC82C168
86 chip. This should also support Lite-On LC82C168 boards.
87 Added simple MII support. Re-arranged code to better modularize
88 initializations.
89 04 Dec 1999 mdc 0.75b3
90 Added preliminary support for LNE100TX PCI cards. Should work for
91 PNIC2 cards. No MII support, but single interface (RJ45) tulip
92 cards seem to not care.
93 03 Dec 1999 mdc 0.75b2
94 Renamed from mx987x5 to tulip, merged in original tulip init code
95 from tulip.c to support other tulip compatible cards.
96 02 Dec 1999 mdc 0.75b1
97 Released Beta MX987x5 Driver for code review and testing to netboot
98 and thinguin mailing lists.
99 */
100
101
102 /*********************************************************************/
103 /* Declarations */
104 /*********************************************************************/
105
106 #include "etherboot.h"
107 #include "nic.h"
108 #include "pci.h"
109 #include "cards.h"
110
111 /* User settable parameters */
112
113 #undef TULIP_DEBUG
114 #undef TULIP_DEBUG_WHERE
115 static int tulip_debug = 2; /* 1 normal messages, 0 quiet .. 7 verbose. */
116
117 #define TX_TIME_OUT 2*TICKS_PER_SEC
118
119 typedef unsigned char u8;
120 typedef signed char s8;
121 typedef unsigned short u16;
122 typedef signed short s16;
123 typedef unsigned int u32;
124 typedef signed int s32;
125
126 /* helpful macros if on a big_endian machine for changing byte order.
127 not strictly needed on Intel */
128 #define le16_to_cpu(val) (val)
129 #define cpu_to_le32(val) (val)
130 #define get_unaligned(ptr) (*(ptr))
131 #define put_unaligned(val, ptr) ((void)( *(ptr) = (val) ))
132 #define get_u16(ptr) (*(u16 *)(ptr))
133 #define virt_to_bus(x) ((unsigned long)x)
134 #define virt_to_le32desc(addr) virt_to_bus(addr)
135
136 #define TULIP_IOTYPE PCI_USES_MASTER | PCI_USES_IO | PCI_ADDR0
137 #define TULIP_SIZE 0x80
138
139 /* This is a mysterious value that can be written to CSR11 in the 21040 (only)
140 to support a pre-NWay full-duplex signaling mechanism using short frames.
141 No one knows what it should be, but if left at its default value some
142 10base2(!) packets trigger a full-duplex-request interrupt. */
143 #define FULL_DUPLEX_MAGIC 0x6969
144
145 static const int csr0 = 0x01A00000 | 0x8000;
146
147 /* The possible media types that can be set in options[] are: */
148 #define MEDIA_MASK 31
149 static const char * const medianame[32] = {
150 "10baseT", "10base2", "AUI", "100baseTx",
151 "10baseT-FDX", "100baseTx-FDX", "100baseT4", "100baseFx",
152 "100baseFx-FDX", "MII 10baseT", "MII 10baseT-FDX", "MII",
153 "10baseT(forced)", "MII 100baseTx", "MII 100baseTx-FDX", "MII 100baseT4",
154 "MII 100baseFx-HDX", "MII 100baseFx-FDX", "Home-PNA 1Mbps", "Invalid-19",
155 };
156
157 /* This much match tulip_tbl[]! Note 21142 == 21143. */
158 enum tulip_chips {
159 DC21040=0, DC21041=1, DC21140=2, DC21142=3, DC21143=3,
160 LC82C168, MX98713, MX98715, MX98725, AX88141, AX88140, PNIC2, COMET,
161 COMPEX9881, I21145, XIRCOM
162 };
163
164 enum pci_id_flags_bits {
165 /* Set PCI command register bits before calling probe1(). */
166 PCI_USES_IO=1, PCI_USES_MEM=2, PCI_USES_MASTER=4,
167 /* Read and map the single following PCI BAR. */
168 PCI_ADDR0=0<<4, PCI_ADDR1=1<<4, PCI_ADDR2=2<<4, PCI_ADDR3=3<<4,
169 PCI_ADDR_64BITS=0x100, PCI_NO_ACPI_WAKE=0x200, PCI_NO_MIN_LATENCY=0x400,
170 PCI_UNUSED_IRQ=0x800,
171 };
172
173 struct pci_id_info {
174 char *name;
175 struct match_info {
176 u32 pci, pci_mask, subsystem, subsystem_mask;
177 u32 revision, revision_mask; /* Only 8 bits. */
178 } id;
179 enum pci_id_flags_bits pci_flags;
180 int io_size; /* Needed for I/O region check or ioremap(). */
181 int drv_flags; /* Driver use, intended as capability flags. */
182 };
183
184 static struct pci_id_info pci_id_tbl[] = {
185 { "Digital DC21040 Tulip", { 0x00021011, 0xffffffff, 0, 0, 0, 0 },
186 TULIP_IOTYPE, 0x80, DC21040 },
187 { "Digital DC21041 Tulip", { 0x00141011, 0xffffffff, 0, 0, 0, 0 },
188 TULIP_IOTYPE, 0x80, DC21041 },
189 { "Digital DS21140A Tulip", { 0x00091011, 0xffffffff, 0,0, 0x20,0xf0 },
190 TULIP_IOTYPE, 0x80, DC21140 },
191 { "Digital DS21140 Tulip", { 0x00091011, 0xffffffff, 0, 0, 0, 0 },
192 TULIP_IOTYPE, 0x80, DC21140 },
193 { "Digital DS21143 Tulip", { 0x00191011, 0xffffffff, 0,0, 65,0xff },
194 TULIP_IOTYPE, TULIP_SIZE, DC21142 },
195 { "Digital DS21142 Tulip", { 0x00191011, 0xffffffff, 0, 0, 0, 0 },
196 TULIP_IOTYPE, TULIP_SIZE, DC21142 },
197 { "Kingston KNE110tx (PNIC)", { 0x000211AD, 0xffffffff, 0xf0022646, 0xffffffff, 0, 0 },
198 TULIP_IOTYPE, 256, LC82C168 },
199 { "Lite-On 82c168 PNIC", { 0x000211AD, 0xffffffff, 0, 0, 0, 0 },
200 TULIP_IOTYPE, 256, LC82C168 },
201 { "Macronix 98713 PMAC", { 0x051210d9, 0xffffffff, 0, 0, 0, 0 },
202 TULIP_IOTYPE, 256, MX98713 },
203 { "Macronix 98715 PMAC", { 0x053110d9, 0xffffffff, 0, 0, 0, 0 },
204 TULIP_IOTYPE, 256, MX98715 },
205 { "Macronix 98725 PMAC", { 0x053110d9, 0xffffffff, 0, 0, 0, 0 },
206 TULIP_IOTYPE, 256, MX98725 },
207 { "ASIX AX88141", { 0x1400125B, 0xffffffff, 0,0, 0x10, 0xf0 },
208 TULIP_IOTYPE, 128, AX88141 },
209 { "ASIX AX88140", { 0x1400125B, 0xffffffff, 0, 0, 0, 0 },
210 TULIP_IOTYPE, 128, AX88140 },
211 { "Lite-On LC82C115 PNIC-II", { 0xc11511AD, 0xffffffff, 0, 0, 0, 0 },
212 TULIP_IOTYPE, 256, PNIC2 },
213 { "ADMtek AN981 Comet", { 0x09811317, 0xffffffff, 0, 0, 0, 0 },
214 TULIP_IOTYPE, 256, COMET },
215 { "ADMtek Centaur-P", { 0x09851317, 0xffffffff, 0, 0, 0, 0 },
216 TULIP_IOTYPE, 256, COMET },
217 { "ADMtek Centaur-C", { 0x19851317, 0xffffffff, 0, 0, 0, 0 },
218 TULIP_IOTYPE, 256, COMET },
219 { "Compex RL100-TX", { 0x988111F6, 0xffffffff, 0, 0, 0, 0 },
220 TULIP_IOTYPE, 128, COMPEX9881 },
221 { "Intel 21145 Tulip", { 0x00398086, 0xffffffff, 0, 0, 0, 0 },
222 TULIP_IOTYPE, 128, I21145 },
223 { "Xircom Tulip clone", { 0x0003115d, 0xffffffff, 0, 0, 0, 0 },
224 TULIP_IOTYPE, 128, XIRCOM },
225 { "Davicom DM9102", { 0x91021282, 0xffffffff, 0, 0, 0, 0 },
226 TULIP_IOTYPE, 0x80, DC21140 },
227 { "Davicom DM9100", { 0x91001282, 0xffffffff, 0, 0, 0, 0 },
228 TULIP_IOTYPE, 0x80, DC21140 },
229 { "Macronix mxic-98715 (EN1217)", { 0x12171113, 0xffffffff, 0, 0, 0, 0 },
230 TULIP_IOTYPE, 256, MX98715 },
231 { 0, { 0, 0, 0, 0, 0, 0 }, 0, 0, 0 },
232 };
233
234 enum tbl_flag {
235 HAS_MII=1, HAS_MEDIA_TABLE=2, CSR12_IN_SROM=4, ALWAYS_CHECK_MII=8,
236 HAS_PWRDWN=0x10, MC_HASH_ONLY=0x20, /* Hash-only multicast filter. */
237 HAS_PNICNWAY=0x80, HAS_NWAY=0x40, /* Uses internal NWay xcvr. */
238 HAS_INTR_MITIGATION=0x100, IS_ASIX=0x200, HAS_8023X=0x400,
239 };
240
241 /* Note: this table must match enum tulip_chips above. */
242 static struct tulip_chip_table {
243 char *chip_name;
244 int flags;
245 } tulip_tbl[] = {
246 { "Digital DC21040 Tulip", 0},
247 { "Digital DC21041 Tulip", HAS_MEDIA_TABLE | HAS_NWAY },
248 { "Digital DS21140 Tulip", HAS_MII | HAS_MEDIA_TABLE | CSR12_IN_SROM },
249 { "Digital DS21143 Tulip", HAS_MII | HAS_MEDIA_TABLE | ALWAYS_CHECK_MII
250 | HAS_PWRDWN | HAS_NWAY | HAS_INTR_MITIGATION },
251 { "Lite-On 82c168 PNIC", HAS_MII | HAS_PNICNWAY },
252 { "Macronix 98713 PMAC", HAS_MII | HAS_MEDIA_TABLE | CSR12_IN_SROM },
253 { "Macronix 98715 PMAC", HAS_MEDIA_TABLE },
254 { "Macronix 98725 PMAC", HAS_MEDIA_TABLE },
255 { "ASIX AX88140", HAS_MII | HAS_MEDIA_TABLE | CSR12_IN_SROM
256 | MC_HASH_ONLY | IS_ASIX },
257 { "ASIX AX88141", HAS_MII | HAS_MEDIA_TABLE | CSR12_IN_SROM | MC_HASH_ONLY
258 | IS_ASIX },
259 { "Lite-On PNIC-II", HAS_MII | HAS_NWAY | HAS_8023X },
260 { "ADMtek Comet", MC_HASH_ONLY },
261 { "Compex 9881 PMAC", HAS_MII | HAS_MEDIA_TABLE | CSR12_IN_SROM },
262 { "Intel DS21145 Tulip", HAS_MII | HAS_MEDIA_TABLE | ALWAYS_CHECK_MII
263 | HAS_PWRDWN | HAS_NWAY },
264 { "Xircom tulip work-alike", HAS_MII | HAS_MEDIA_TABLE | ALWAYS_CHECK_MII
265 | HAS_PWRDWN | HAS_NWAY },
266 { 0, 0 },
267 };
268
269 /* A full-duplex map for media types. */
270 enum MediaIs {
271 MediaIsFD = 1, MediaAlwaysFD=2, MediaIsMII=4, MediaIsFx=8,
272 MediaIs100=16};
273
274 static const char media_cap[32] =
275 {0,0,0,16, 3,19,16,24, 27,4,7,5, 0,20,23,20, 20,31,0,0, };
276 static u8 t21040_csr13[] = {2,0x0C,8,4, 4,0,0,0, 0,0,0,0, 4,0,0,0};
277
278 /* 21041 transceiver register settings: 10-T, 10-2, AUI, 10-T, 10T-FD */
279 static u16 t21041_csr13[] = { 0xEF01, 0xEF09, 0xEF09, 0xEF01, 0xEF09, };
280 static u16 t21041_csr14[] = { 0xFFFF, 0xF7FD, 0xF7FD, 0x7F3F, 0x7F3D, };
281 static u16 t21041_csr15[] = { 0x0008, 0x0006, 0x000E, 0x0008, 0x0008, };
282
283 static u16 t21142_csr13[] = { 0x0001, 0x0009, 0x0009, 0x0000, 0x0001, };
284 static u16 t21142_csr14[] = { 0xFFFF, 0x0705, 0x0705, 0x0000, 0x7F3D, };
285 static u16 t21142_csr15[] = { 0x0008, 0x0006, 0x000E, 0x0008, 0x0008, };
286
287 /* Offsets to the Command and Status Registers, "CSRs". All accesses
288 must be longword instructions and quadword aligned. */
289 enum tulip_offsets {
290 CSR0=0, CSR1=0x08, CSR2=0x10, CSR3=0x18, CSR4=0x20, CSR5=0x28,
291 CSR6=0x30, CSR7=0x38, CSR8=0x40, CSR9=0x48, CSR10=0x50, CSR11=0x58,
292 CSR12=0x60, CSR13=0x68, CSR14=0x70, CSR15=0x78, CSR16=0x80, CSR20=0xA0
293 };
294
295 /* The bits in the CSR5 status registers, mostly interrupt sources. */
296 enum status_bits {
297 TimerInt=0x800, TPLnkFail=0x1000, TPLnkPass=0x10,
298 NormalIntr=0x10000, AbnormalIntr=0x8000,
299 RxJabber=0x200, RxDied=0x100, RxNoBuf=0x80, RxIntr=0x40,
300 TxFIFOUnderflow=0x20, TxJabber=0x08, TxNoBuf=0x04, TxDied=0x02, TxIntr=0x01,
301 };
302
303 enum desc_status_bits {
304 DescOwnded=0x80000000, RxDescFatalErr=0x8000, RxWholePkt=0x0300,
305 };
306
307 struct medialeaf {
308 u8 type;
309 u8 media;
310 unsigned char *leafdata;
311 };
312
313 struct mediatable {
314 u16 defaultmedia;
315 u8 leafcount, csr12dir; /* General purpose pin directions. */
316 unsigned has_mii:1, has_nonmii:1, has_reset:6;
317 u32 csr15dir, csr15val; /* 21143 NWay setting. */
318 struct medialeaf mleaf[0];
319 };
320
321 struct mediainfo {
322 struct mediainfo *next;
323 int info_type;
324 int index;
325 unsigned char *info;
326 };
327
328 /* EEPROM Address width definitions */
329 #define EEPROM_ADDRLEN 6
330 #define EEPROM_SIZE 128 /* 2 << EEPROM_ADDRLEN */
331
332 /* The EEPROM commands include the alway-set leading bit. */
333 #define EE_WRITE_CMD (5 << addr_len)
334 #define EE_READ_CMD (6 << addr_len)
335 #define EE_ERASE_CMD (7 << addr_len)
336
337 /* EEPROM_Ctrl bits. */
338 #define EE_SHIFT_CLK 0x02 /* EEPROM shift clock. */
339 #define EE_CS 0x01 /* EEPROM chip select. */
340 #define EE_DATA_WRITE 0x04 /* EEPROM chip data in. */
341 #define EE_WRITE_0 0x01
342 #define EE_WRITE_1 0x05
343 #define EE_DATA_READ 0x08 /* EEPROM chip data out. */
344 #define EE_ENB (0x4800 | EE_CS)
345
346 /* Delay between EEPROM clock transitions. Even at 33Mhz current PCI
347 implementations don't overrun the EEPROM clock. We add a bus
348 turn-around to insure that this remains true. */
349 #define eeprom_delay() inl(ee_addr)
350
351 /* Size of transmit and receive buffers */
352 #define BUFLEN 1536
353
354 /* Ring-wrap flag in length field, use for last ring entry.
355 0x01000000 means chain on buffer2 address,
356 0x02000000 means use the ring start address in CSR2/3.
357 Note: Some work-alike chips do not function correctly in chained mode.
358 The ASIX chip works only in chained mode.
359 Thus we indicate ring mode, but always write the 'next' field for
360 chained mode as well. */
361 #define DESC_RING_WRAP 0x02000000
362
363 /* transmit and receive descriptor format */
364 struct tulip_rx_desc {
365 volatile u32 status;
366 u32 length;
367 u32 buffer1, buffer2;
368 };
369
370 struct tulip_tx_desc {
371 volatile u32 status;
372 u32 length;
373 u32 buffer1, buffer2;
374 };
375
376 /*********************************************************************/
377 /* Global Storage */
378 /*********************************************************************/
379
380 static u32 ioaddr;
381
382 /* Note: transmit and receive buffers must be longword aligned and
383 longword divisable */
384
385 #define TX_RING_SIZE 2
386 static struct tulip_tx_desc tx_ring[TX_RING_SIZE] __attribute__ ((aligned(4)));
387
388 #ifdef USE_LOWMEM_BUFFER
389 #define txb ((char *)0x10000 - BUFLEN)
390 #else
391 static unsigned char txb[BUFLEN] __attribute__ ((aligned(4)));
392 #endif
393
394 #define RX_RING_SIZE 4
395 static struct tulip_rx_desc rx_ring[RX_RING_SIZE] __attribute__ ((aligned(4)));
396
397 #ifdef USE_LOWMEM_BUFFER
398 #define rxb ((char *)0x10000 - RX_RING_SIZE * BUFLEN - BUFLEN)
399 #else
400 static unsigned char rxb[RX_RING_SIZE * BUFLEN] __attribute__ ((aligned(4)));
401 #endif
402
403 static struct tulip_private {
404 int cur_rx;
405 int chip_id; /* index into tulip_tbl[] */
406 int pci_id_idx; /* index into pci_id_tbl[] */
407 int revision;
408 int flags;
409 unsigned short vendor_id; /* PCI card vendor code */
410 unsigned short dev_id; /* PCI card device code */
411 unsigned char ehdr[ETH_HLEN]; /* buffer for ethernet header */
412 const char *nic_name;
413 unsigned int csr0, csr6; /* Current CSR0, CSR6 settings. */
414 unsigned int if_port;
415 unsigned int full_duplex; /* Full-duplex operation requested. */
416 unsigned int full_duplex_lock;
417 unsigned int medialock; /* Do not sense media type. */
418 unsigned int mediasense; /* Media sensing in progress. */
419 unsigned int nway, nwayset; /* 21143 internal NWay. */
420 unsigned int default_port;
421 unsigned char eeprom[EEPROM_SIZE]; /* Serial EEPROM contents. */
422 u8 media_table_storage[(sizeof(struct mediatable) + 32*sizeof(struct medialeaf))];
423 u16 sym_advertise, mii_advertise; /* NWay to-advertise. */
424 struct mediatable *mtable;
425 u16 lpar; /* 21143 Link partner ability. */
426 u16 advertising[4]; /* MII advertise, from SROM table. */
427 signed char phys[4], mii_cnt; /* MII device addresses. */
428 int cur_index; /* Current media index. */
429 int saved_if_port;
430 } tpx;
431
432 static struct tulip_private *tp;
433
434 /* Known cards that have old-style EEPROMs.
435 Writing this table is described at
436 http://cesdis.gsfc.nasa.gov/linux/drivers/tulip-drivers/tulip-media.html */
437 static struct fixups {
438 char *name;
439 unsigned char addr0, addr1, addr2;
440 u16 newtable[32]; /* Max length below. */
441 } eeprom_fixups[] = {
442 {"Asante", 0, 0, 0x94, {0x1e00, 0x0000, 0x0800, 0x0100, 0x018c,
443 0x0000, 0x0000, 0xe078, 0x0001, 0x0050, 0x0018 }},
444 {"SMC9332DST", 0, 0, 0xC0, { 0x1e00, 0x0000, 0x0800, 0x041f,
445 0x0000, 0x009E, /* 10baseT */
446 0x0004, 0x009E, /* 10baseT-FD */
447 0x0903, 0x006D, /* 100baseTx */
448 0x0905, 0x006D, /* 100baseTx-FD */ }},
449 {"Cogent EM100", 0, 0, 0x92, { 0x1e00, 0x0000, 0x0800, 0x063f,
450 0x0107, 0x8021, /* 100baseFx */
451 0x0108, 0x8021, /* 100baseFx-FD */
452 0x0100, 0x009E, /* 10baseT */
453 0x0104, 0x009E, /* 10baseT-FD */
454 0x0103, 0x006D, /* 100baseTx */
455 0x0105, 0x006D, /* 100baseTx-FD */ }},
456 {"Maxtech NX-110", 0, 0, 0xE8, { 0x1e00, 0x0000, 0x0800, 0x0513,
457 0x1001, 0x009E, /* 10base2, CSR12 0x10*/
458 0x0000, 0x009E, /* 10baseT */
459 0x0004, 0x009E, /* 10baseT-FD */
460 0x0303, 0x006D, /* 100baseTx, CSR12 0x03 */
461 0x0305, 0x006D, /* 100baseTx-FD CSR12 0x03 */}},
462 {"Accton EN1207", 0, 0, 0xE8, { 0x1e00, 0x0000, 0x0800, 0x051F,
463 0x1B01, 0x0000, /* 10base2, CSR12 0x1B */
464 0x0B00, 0x009E, /* 10baseT, CSR12 0x0B */
465 0x0B04, 0x009E, /* 10baseT-FD,CSR12 0x0B */
466 0x1B03, 0x006D, /* 100baseTx, CSR12 0x1B */
467 0x1B05, 0x006D, /* 100baseTx-FD CSR12 0x1B */
468 }},
469 {0, 0, 0, 0, {}}};
470
471 static const char * block_name[] = {"21140 non-MII", "21140 MII PHY",
472 "21142 Serial PHY", "21142 MII PHY", "21143 SYM PHY", "21143 reset method"};
473
474
475 /*********************************************************************/
476 /* Function Prototypes */
477 /*********************************************************************/
478 static int mdio_read(struct nic *nic, int phy_id, int location);
479 static void mdio_write(struct nic *nic, int phy_id, int location, int value);
480 static int read_eeprom(unsigned long ioaddr, int location, int addr_len);
481 static void parse_eeprom(struct nic *nic);
482 struct nic *tulip_probe(struct nic *nic, unsigned short *io_addrs,
483 struct pci_device *pci);
484 static void tulip_init_ring(struct nic *nic);
485 static void tulip_reset(struct nic *nic);
486 static void tulip_transmit(struct nic *nic, const char *d, unsigned int t,
487 unsigned int s, const char *p);
488 static int tulip_poll(struct nic *nic);
489 static void tulip_disable(struct nic *nic);
490 static void nway_start(struct nic *nic);
491 static void pnic_do_nway(struct nic *nic);
492 static void select_media(struct nic *nic, int startup);
493 static void init_media(struct nic *nic);
494 static void start_link(struct nic *nic);
495 static int tulip_check_duplex(struct nic *nic);
496
497 static void tulip_wait(unsigned int nticks);
498
499 #ifdef TULIP_DEBUG_WHERE
500 static void whereami(const char *str);
501 #endif
502
503 #ifdef TULIP_DEBUG
504 static void tulip_more(void);
505 #endif
506
507
508 /*********************************************************************/
509 /* Utility Routines */
510 /*********************************************************************/
511
512 #ifdef TULIP_DEBUG_WHERE
whereami(const char * str)513 static void whereami (const char *str)
514 {
515 printf("%s: %s\n", tp->nic_name, str);
516 /* sleep(2); */
517 }
518 #endif
519
520 #ifdef TULIP_DEBUG
tulip_more(void)521 static void tulip_more(void)
522 {
523 printf("\n\n-- more --");
524 while (!iskey())
525 /* wait */;
526 getchar();
527 printf("\n\n");
528 }
529 #endif /* TULIP_DEBUG */
530
tulip_wait(unsigned int nticks)531 static void tulip_wait(unsigned int nticks)
532 {
533 unsigned int to = currticks() + nticks;
534 while (currticks() < to)
535 /* wait */ ;
536 }
537
538
539 /*********************************************************************/
540 /* Media Descriptor Code */
541 /*********************************************************************/
542
543 /* MII transceiver control section.
544 Read and write the MII registers using software-generated serial
545 MDIO protocol. See the MII specifications or DP83840A data sheet
546 for details. */
547
548 /* The maximum data clock rate is 2.5 Mhz. The minimum timing is usually
549 met by back-to-back PCI I/O cycles, but we insert a delay to avoid
550 "overclocking" issues or future 66Mhz PCI. */
551 #define mdio_delay() inl(mdio_addr)
552
553 /* Read and write the MII registers using software-generated serial
554 MDIO protocol. It is just different enough from the EEPROM protocol
555 to not share code. The maxium data clock rate is 2.5 Mhz. */
556 #define MDIO_SHIFT_CLK 0x10000
557 #define MDIO_DATA_WRITE0 0x00000
558 #define MDIO_DATA_WRITE1 0x20000
559 #define MDIO_ENB 0x00000 /* Ignore the 0x02000 databook setting. */
560 #define MDIO_ENB_IN 0x40000
561 #define MDIO_DATA_READ 0x80000
562
563 /* MII transceiver control section.
564 Read and write the MII registers using software-generated serial
565 MDIO protocol. See the MII specifications or DP83840A data sheet
566 for details. */
567
mdio_read(struct nic * nic,int phy_id,int location)568 int mdio_read(struct nic *nic, int phy_id, int location)
569 {
570 int i;
571 int read_cmd = (0xf6 << 10) | (phy_id << 5) | location;
572 int retval = 0;
573 long mdio_addr = ioaddr + CSR9;
574
575 #ifdef TULIP_DEBUG_WHERE
576 whereami("mdio_read\n");
577 #endif
578
579 if (tp->chip_id == LC82C168) {
580 int i = 1000;
581 outl(0x60020000 + (phy_id<<23) + (location<<18), ioaddr + 0xA0);
582 inl(ioaddr + 0xA0);
583 inl(ioaddr + 0xA0);
584 while (--i > 0)
585 if ( ! ((retval = inl(ioaddr + 0xA0)) & 0x80000000))
586 return retval & 0xffff;
587 return 0xffff;
588 }
589
590 if (tp->chip_id == COMET) {
591 if (phy_id == 1) {
592 if (location < 7)
593 return inl(ioaddr + 0xB4 + (location<<2));
594 else if (location == 17)
595 return inl(ioaddr + 0xD0);
596 else if (location >= 29 && location <= 31)
597 return inl(ioaddr + 0xD4 + ((location-29)<<2));
598 }
599 return 0xffff;
600 }
601
602 /* Establish sync by sending at least 32 logic ones. */
603 for (i = 32; i >= 0; i--) {
604 outl(MDIO_ENB | MDIO_DATA_WRITE1, mdio_addr);
605 mdio_delay();
606 outl(MDIO_ENB | MDIO_DATA_WRITE1 | MDIO_SHIFT_CLK, mdio_addr);
607 mdio_delay();
608 }
609 /* Shift the read command bits out. */
610 for (i = 15; i >= 0; i--) {
611 int dataval = (read_cmd & (1 << i)) ? MDIO_DATA_WRITE1 : 0;
612
613 outl(MDIO_ENB | dataval, mdio_addr);
614 mdio_delay();
615 outl(MDIO_ENB | dataval | MDIO_SHIFT_CLK, mdio_addr);
616 mdio_delay();
617 }
618 /* Read the two transition, 16 data, and wire-idle bits. */
619 for (i = 19; i > 0; i--) {
620 outl(MDIO_ENB_IN, mdio_addr);
621 mdio_delay();
622 retval = (retval << 1) | ((inl(mdio_addr) & MDIO_DATA_READ) ? 1 : 0);
623 outl(MDIO_ENB_IN | MDIO_SHIFT_CLK, mdio_addr);
624 mdio_delay();
625 }
626 return (retval>>1) & 0xffff;
627 }
628
mdio_write(struct nic * nic,int phy_id,int location,int value)629 void mdio_write(struct nic *nic, int phy_id, int location, int value)
630 {
631 int i;
632 int cmd = (0x5002 << 16) | (phy_id << 23) | (location<<18) | value;
633 long mdio_addr = ioaddr + CSR9;
634
635 #ifdef TULIP_DEBUG_WHERE
636 whereami("mdio_write\n");
637 #endif
638
639 if (tp->chip_id == LC82C168) {
640 int i = 1000;
641 outl(cmd, ioaddr + 0xA0);
642 do
643 if ( ! (inl(ioaddr + 0xA0) & 0x80000000))
644 break;
645 while (--i > 0);
646 return;
647 }
648
649 if (tp->chip_id == COMET) {
650 if (phy_id != 1)
651 return;
652 if (location < 7)
653 outl(value, ioaddr + 0xB4 + (location<<2));
654 else if (location == 17)
655 outl(value, ioaddr + 0xD0);
656 else if (location >= 29 && location <= 31)
657 outl(value, ioaddr + 0xD4 + ((location-29)<<2));
658 return;
659 }
660
661 /* Establish sync by sending 32 logic ones. */
662 for (i = 32; i >= 0; i--) {
663 outl(MDIO_ENB | MDIO_DATA_WRITE1, mdio_addr);
664 mdio_delay();
665 outl(MDIO_ENB | MDIO_DATA_WRITE1 | MDIO_SHIFT_CLK, mdio_addr);
666 mdio_delay();
667 }
668 /* Shift the command bits out. */
669 for (i = 31; i >= 0; i--) {
670 int dataval = (cmd & (1 << i)) ? MDIO_DATA_WRITE1 : 0;
671 outl(MDIO_ENB | dataval, mdio_addr);
672 mdio_delay();
673 outl(MDIO_ENB | dataval | MDIO_SHIFT_CLK, mdio_addr);
674 mdio_delay();
675 }
676 /* Clear out extra bits. */
677 for (i = 2; i > 0; i--) {
678 outl(MDIO_ENB_IN, mdio_addr);
679 mdio_delay();
680 outl(MDIO_ENB_IN | MDIO_SHIFT_CLK, mdio_addr);
681 mdio_delay();
682 }
683 }
684
685
686 /*********************************************************************/
687 /* EEPROM Reading Code */
688 /*********************************************************************/
689 /* EEPROM routines adapted from the Linux Tulip Code */
690 /* Reading a serial EEPROM is a "bit" grungy, but we work our way
691 through:->.
692 */
read_eeprom(unsigned long ioaddr,int location,int addr_len)693 static int read_eeprom(unsigned long ioaddr, int location, int addr_len)
694 {
695 int i;
696 unsigned short retval = 0;
697 long ee_addr = ioaddr + CSR9;
698 int read_cmd = location | EE_READ_CMD;
699
700 #ifdef TULIP_DEBUG_WHERE
701 whereami("read_eeprom\n");
702 #endif
703
704 outl(EE_ENB & ~EE_CS, ee_addr);
705 outl(EE_ENB, ee_addr);
706
707 /* Shift the read command bits out. */
708 for (i = 4 + addr_len; i >= 0; i--) {
709 short dataval = (read_cmd & (1 << i)) ? EE_DATA_WRITE : 0;
710 outl(EE_ENB | dataval, ee_addr);
711 eeprom_delay();
712 outl(EE_ENB | dataval | EE_SHIFT_CLK, ee_addr);
713 eeprom_delay();
714 }
715 outl(EE_ENB, ee_addr);
716
717 for (i = 16; i > 0; i--) {
718 outl(EE_ENB | EE_SHIFT_CLK, ee_addr);
719 eeprom_delay();
720 retval = (retval << 1) | ((inl(ee_addr) & EE_DATA_READ) ? 1 : 0);
721 outl(EE_ENB, ee_addr);
722 eeprom_delay();
723 }
724
725 /* Terminate the EEPROM access. */
726 outl(EE_ENB & ~EE_CS, ee_addr);
727 return retval;
728 }
729
730
731 /*********************************************************************/
732 /* EEPROM Parsing Code */
733 /*********************************************************************/
parse_eeprom(struct nic * nic)734 static void parse_eeprom(struct nic *nic)
735 {
736 unsigned char *p, *ee_data = tp->eeprom;
737 int new_advertise = 0;
738 int i;
739
740 #ifdef TULIP_DEBUG_WHERE
741 whereami("parse_eeprom\n");
742 #endif
743
744 tp->mtable = 0;
745 /* Detect an old-style (SA only) EEPROM layout:
746 memcmp(ee_data, ee_data+16, 8). */
747 for (i = 0; i < 8; i ++)
748 if (ee_data[i] != ee_data[16+i])
749 break;
750 if (i >= 8) {
751 /* Do a fix-up based on the vendor half of the station address. */
752 for (i = 0; eeprom_fixups[i].name; i++) {
753 if (nic->node_addr[0] == eeprom_fixups[i].addr0
754 && nic->node_addr[1] == eeprom_fixups[i].addr1
755 && nic->node_addr[2] == eeprom_fixups[i].addr2) {
756 if (nic->node_addr[2] == 0xE8 && ee_data[0x1a] == 0x55)
757 i++; /* An Accton EN1207, not an outlaw Maxtech. */
758 memcpy(ee_data + 26, eeprom_fixups[i].newtable,
759 sizeof(eeprom_fixups[i].newtable));
760 #ifdef TULIP_DEBUG
761 printf("%s: Old format EEPROM on '%s' board.\n%s: Using substitute media control info.\n",
762 tp->nic_name, eeprom_fixups[i].name, tp->nic_name);
763 #endif
764 break;
765 }
766 }
767 if (eeprom_fixups[i].name == NULL) { /* No fixup found. */
768 #ifdef TULIP_DEBUG
769 printf("%s: Old style EEPROM with no media selection information.\n",
770 tp->nic_name);
771 #endif
772 return;
773 }
774 }
775
776 if (ee_data[19] > 1) {
777 #ifdef TULIP_DEBUG
778 printf("%s: Multiport cards (%d ports) may not work correctly.\n",
779 tp->nic_name, ee_data[19]);
780 #endif
781 }
782
783 p = (void *)ee_data + ee_data[27];
784
785 if (ee_data[27] == 0) { /* No valid media table. */
786 #ifdef TULIP_DEBUG
787 if (tulip_debug > 1) {
788 printf("%s: No Valid Media Table. ee_data[27] = %hhX\n",
789 tp->nic_name, ee_data[27]);
790 }
791 #endif
792 } else if (tp->chip_id == DC21041) {
793 int media = get_u16(p);
794 int count = p[2];
795 p += 3;
796
797 printf("%s: 21041 Media table, default media %hX (%s).\n",
798 tp->nic_name, media,
799 media & 0x0800 ? "Autosense" : medianame[media & 15]);
800 for (i = 0; i < count; i++) {
801 unsigned char media_block = *p++;
802 int media_code = media_block & MEDIA_MASK;
803 if (media_block & 0x40)
804 p += 6;
805 switch(media_code) {
806 case 0: new_advertise |= 0x0020; break;
807 case 4: new_advertise |= 0x0040; break;
808 }
809 printf("%s: 21041 media #%d, %s.\n",
810 tp->nic_name, media_code, medianame[media_code]);
811 }
812 } else {
813 unsigned char csr12dir = 0;
814 int count;
815 struct mediatable *mtable;
816 u16 media = get_u16(p);
817
818 p += 2;
819 if (tp->flags & CSR12_IN_SROM)
820 csr12dir = *p++;
821 count = *p++;
822
823 tp->mtable = mtable = (struct mediatable *)&tp->media_table_storage[0];
824
825 mtable->defaultmedia = media;
826 mtable->leafcount = count;
827 mtable->csr12dir = csr12dir;
828 mtable->has_nonmii = mtable->has_mii = mtable->has_reset = 0;
829 mtable->csr15dir = mtable->csr15val = 0;
830
831 printf("%s: EEPROM default media type %s.\n", tp->nic_name,
832 media & 0x0800 ? "Autosense" : medianame[media & MEDIA_MASK]);
833
834 for (i = 0; i < count; i++) {
835 struct medialeaf *leaf = &mtable->mleaf[i];
836
837 if ((p[0] & 0x80) == 0) { /* 21140 Compact block. */
838 leaf->type = 0;
839 leaf->media = p[0] & 0x3f;
840 leaf->leafdata = p;
841 if ((p[2] & 0x61) == 0x01) /* Bogus, but Znyx boards do it. */
842 mtable->has_mii = 1;
843 p += 4;
844 } else {
845 switch(leaf->type = p[1]) {
846 case 5:
847 mtable->has_reset = i;
848 leaf->media = p[2] & 0x0f;
849 break;
850 case 1: case 3:
851 mtable->has_mii = 1;
852 leaf->media = 11;
853 break;
854 case 2:
855 if ((p[2] & 0x3f) == 0) {
856 u32 base15 = (p[2] & 0x40) ? get_u16(p + 7) : 0x0008;
857 u16 *p1 = (u16 *)(p + (p[2] & 0x40 ? 9 : 3));
858 mtable->csr15dir = (get_unaligned(p1 + 0)<<16) + base15;
859 mtable->csr15val = (get_unaligned(p1 + 1)<<16) + base15;
860 }
861 /* Fall through. */
862 case 0: case 4:
863 mtable->has_nonmii = 1;
864 leaf->media = p[2] & MEDIA_MASK;
865 switch (leaf->media) {
866 case 0: new_advertise |= 0x0020; break;
867 case 4: new_advertise |= 0x0040; break;
868 case 3: new_advertise |= 0x0080; break;
869 case 5: new_advertise |= 0x0100; break;
870 case 6: new_advertise |= 0x0200; break;
871 }
872 break;
873 default:
874 leaf->media = 19;
875 }
876 leaf->leafdata = p + 2;
877 p += (p[0] & 0x3f) + 1;
878 }
879 #ifdef TULIP_DEBUG
880 if (tulip_debug > 1 && leaf->media == 11) {
881 unsigned char *bp = leaf->leafdata;
882 printf("%s: MII interface PHY %d, setup/reset sequences %d/%d long, capabilities %hhX %hhX.\n",
883 tp->nic_name, bp[0], bp[1], bp[2 + bp[1]*2],
884 bp[5 + bp[2 + bp[1]*2]*2], bp[4 + bp[2 + bp[1]*2]*2]);
885 }
886 #endif
887 printf("%s: Index #%d - Media %s (#%d) described "
888 "by a %s (%d) block.\n",
889 tp->nic_name, i, medianame[leaf->media], leaf->media,
890 leaf->type < 6 ? block_name[leaf->type] : "UNKNOWN",
891 leaf->type);
892 }
893 if (new_advertise)
894 tp->sym_advertise = new_advertise;
895 }
896 }
897
898
899 /*********************************************************************/
900 /* tulip_init_ring - setup the tx and rx descriptors */
901 /*********************************************************************/
tulip_init_ring(struct nic * nic)902 static void tulip_init_ring(struct nic *nic)
903 {
904 int i;
905
906 #ifdef TULIP_DEBUG_WHERE
907 whereami("tulip_init_ring\n");
908 #endif
909
910 tp->cur_rx = 0;
911
912 for (i = 0; i < RX_RING_SIZE; i++) {
913 rx_ring[i].status = cpu_to_le32(0x80000000);
914 rx_ring[i].length = cpu_to_le32(BUFLEN);
915 rx_ring[i].buffer1 = virt_to_le32desc(&rxb[i * BUFLEN]);
916 rx_ring[i].buffer2 = virt_to_le32desc(&rx_ring[i+1]);
917 }
918 /* Mark the last entry as wrapping the ring. */
919 rx_ring[i-1].length = cpu_to_le32(DESC_RING_WRAP | BUFLEN);
920 rx_ring[i-1].buffer2 = virt_to_le32desc(&rx_ring[0]);
921
922 /* We only use 1 transmit buffer, but we use 2 descriptors so
923 transmit engines have somewhere to point to if they feel the need */
924
925 tx_ring[0].status = 0x00000000;
926 tx_ring[0].buffer1 = virt_to_le32desc(&txb[0]);
927 tx_ring[0].buffer2 = virt_to_le32desc(&tx_ring[1]);
928
929 /* this descriptor should never get used, since it will never be owned
930 by the machine (status will always == 0) */
931 tx_ring[1].status = 0x00000000;
932 tx_ring[1].buffer1 = virt_to_le32desc(&txb[0]);
933 tx_ring[1].buffer2 = virt_to_le32desc(&tx_ring[0]);
934
935 /* Mark the last entry as wrapping the ring, though this should never happen */
936 tx_ring[1].length = cpu_to_le32(DESC_RING_WRAP | BUFLEN);
937 }
938
939 /*********************************************************************/
940 /* eth_reset - Reset adapter */
941 /*********************************************************************/
tulip_reset(struct nic * nic)942 static void tulip_reset(struct nic *nic)
943 {
944 int i;
945 unsigned long to;
946 u32 addr_low, addr_high;
947
948 #ifdef TULIP_DEBUG_WHERE
949 whereami("tulip_reset\n");
950 #endif
951
952 /* Stop Tx and RX */
953 outl(inl(ioaddr + CSR6) & ~0x00002002, ioaddr + CSR6);
954
955 /* On some chip revs we must set the MII/SYM port before the reset!? */
956 if (tp->mii_cnt || (tp->mtable && tp->mtable->has_mii)) {
957 outl(0x814C0000, ioaddr + CSR6);
958 }
959
960 /* Reset the chip, holding bit 0 set at least 50 PCI cycles. */
961 outl(0x00000001, ioaddr + CSR0);
962 tulip_wait(1);
963
964 /* turn off reset and set cache align=16lword, burst=unlimit */
965 outl(tp->csr0, ioaddr + CSR0);
966
967 /* Wait the specified 50 PCI cycles after a reset */
968 tulip_wait(1);
969
970 /* set up transmit and receive descriptors */
971 tulip_init_ring(nic);
972
973 if (tp->chip_id == PNIC2) {
974 u32 addr_high = (nic->node_addr[1]<<8) + (nic->node_addr[0]<<0);
975 /* This address setting does not appear to impact chip operation?? */
976 outl((nic->node_addr[5]<<8) + nic->node_addr[4] +
977 (nic->node_addr[3]<<24) + (nic->node_addr[2]<<16),
978 ioaddr + 0xB0);
979 outl(addr_high + (addr_high<<16), ioaddr + 0xB8);
980 }
981
982 /* MC_HASH_ONLY boards don't support setup packets */
983 if (tp->flags & MC_HASH_ONLY) {
984 u32 addr_low = cpu_to_le32(get_unaligned((u32 *)nic->node_addr));
985 u32 addr_high = cpu_to_le32(get_unaligned((u16 *)(nic->node_addr+4)));
986
987 /* clear multicast hash filters and setup MAC address filters */
988 if (tp->flags & IS_ASIX) {
989 outl(0, ioaddr + CSR13);
990 outl(addr_low, ioaddr + CSR14);
991 outl(1, ioaddr + CSR13);
992 outl(addr_high, ioaddr + CSR14);
993 outl(2, ioaddr + CSR13);
994 outl(0, ioaddr + CSR14);
995 outl(3, ioaddr + CSR13);
996 outl(0, ioaddr + CSR14);
997 } else if (tp->chip_id == COMET) {
998 outl(addr_low, ioaddr + 0xA4);
999 outl(addr_high, ioaddr + 0xA8);
1000 outl(0, ioaddr + 0xAC);
1001 outl(0, ioaddr + 0xB0);
1002 }
1003 } else {
1004 /* for other boards we send a setup packet to initialize
1005 the filters */
1006 u32 tx_flags = 0x08000000 | 192;
1007
1008 /* construct perfect filter frame with mac address as first match
1009 and broadcast address for all others */
1010 for (i=0; i<192; i++)
1011 txb[i] = 0xFF;
1012 txb[0] = nic->node_addr[0];
1013 txb[1] = nic->node_addr[1];
1014 txb[4] = nic->node_addr[2];
1015 txb[5] = nic->node_addr[3];
1016 txb[8] = nic->node_addr[4];
1017 txb[9] = nic->node_addr[5];
1018
1019 tx_ring[0].length = cpu_to_le32(tx_flags);
1020 tx_ring[0].buffer1 = virt_to_le32desc(&txb[0]);
1021 tx_ring[0].status = cpu_to_le32(0x80000000);
1022 }
1023
1024 /* Point to rx and tx descriptors */
1025 outl((unsigned long)&rx_ring[0], ioaddr + CSR3);
1026 outl((unsigned long)&tx_ring[0], ioaddr + CSR4);
1027
1028 init_media(nic);
1029
1030 /* set the chip's operating mode (but don't turn on xmit and recv yet) */
1031 outl((tp->csr6 & ~0x00002002), ioaddr + CSR6);
1032
1033 /* send setup packet for cards that support it */
1034 if (!(tp->flags & MC_HASH_ONLY)) {
1035 /* enable transmit wait for completion */
1036 outl(tp->csr6 | 0x00002000, ioaddr + CSR6);
1037 /* immediate transmit demand */
1038 outl(0, ioaddr + CSR1);
1039
1040 to = currticks() + TX_TIME_OUT;
1041 while ((tx_ring[0].status & 0x80000000) && (currticks() < to))
1042 /* wait */ ;
1043
1044 if (currticks() >= to) {
1045 printf ("%s: TX Setup Timeout.\n", tp->nic_name);
1046 }
1047 }
1048
1049 if (tp->chip_id == LC82C168)
1050 tulip_check_duplex(nic);
1051
1052 /* enable transmit and receive */
1053 outl(tp->csr6 | 0x00002002, ioaddr + CSR6);
1054 }
1055
1056
1057 /*********************************************************************/
1058 /* eth_transmit - Transmit a frame */
1059 /*********************************************************************/
tulip_transmit(struct nic * nic,const char * d,unsigned int t,unsigned int s,const char * p)1060 static void tulip_transmit(struct nic *nic, const char *d, unsigned int t,
1061 unsigned int s, const char *p)
1062 {
1063 u16 nstype;
1064 u32 to;
1065 u32 csr6 = inl(ioaddr + CSR6);
1066
1067 #ifdef TULIP_DEBUG_WHERE
1068 whereami("tulip_transmit\n");
1069 #endif
1070
1071 /* Disable Tx */
1072 outl(csr6 & ~0x00002000, ioaddr + CSR6);
1073
1074 memcpy(txb, d, ETH_ALEN);
1075 memcpy(txb + ETH_ALEN, nic->node_addr, ETH_ALEN);
1076 nstype = htons((u16) t);
1077 memcpy(txb + 2 * ETH_ALEN, (u8 *)&nstype, 2);
1078 memcpy(txb + ETH_HLEN, p, s);
1079
1080 s += ETH_HLEN;
1081 s &= 0x0FFF;
1082
1083 /* pad to minimum packet size */
1084 while (s < ETH_ZLEN)
1085 txb[s++] = '\0';
1086
1087 #ifdef TULIP_DEBUG
1088 if (tulip_debug > 1)
1089 printf("%s: sending %d bytes ethtype %hX\n", tp->nic_name, s, t);
1090 #endif
1091
1092 /* setup the transmit descriptor */
1093 /* 0x60000000 = no interrupt on completion */
1094 tx_ring[0].length = cpu_to_le32(0x60000000 | s);
1095 tx_ring[0].status = cpu_to_le32(0x80000000);
1096
1097 /* Point to transmit descriptor */
1098 outl((u32)&tx_ring[0], ioaddr + CSR4);
1099
1100 /* Enable Tx */
1101 outl(csr6 | 0x00002000, ioaddr + CSR6);
1102 /* immediate transmit demand */
1103 outl(0, ioaddr + CSR1);
1104
1105 to = currticks() + TX_TIME_OUT;
1106 while ((tx_ring[0].status & 0x80000000) && (currticks() < to))
1107 /* wait */ ;
1108
1109 if (currticks() >= to) {
1110 printf ("TX Timeout!\n");
1111 }
1112
1113 /* Disable Tx */
1114 outl(csr6 & ~0x00002000, ioaddr + CSR6);
1115 }
1116
1117 /*********************************************************************/
1118 /* eth_poll - Wait for a frame */
1119 /*********************************************************************/
tulip_poll(struct nic * nic)1120 static int tulip_poll(struct nic *nic)
1121 {
1122
1123 #ifdef TULIP_DEBUG_WHERE
1124 whereami("tulip_poll\n");
1125 #endif
1126
1127 /* no packet waiting. packet still owned by NIC */
1128 if (rx_ring[tp->cur_rx].status & 0x80000000)
1129 return 0;
1130
1131 #ifdef TULIP_DEBUG_WHERE
1132 whereami("tulip_poll got one\n");
1133 #endif
1134
1135 nic->packetlen = (rx_ring[tp->cur_rx].status & 0x3FFF0000) >> 16;
1136
1137 /* if we get a corrupted packet. throw it away and move on */
1138 if (rx_ring[tp->cur_rx].status & 0x00008000) {
1139 /* return the descriptor and buffer to receive ring */
1140 rx_ring[tp->cur_rx].status = 0x80000000;
1141 tp->cur_rx = (++tp->cur_rx) % RX_RING_SIZE;
1142 return 0;
1143 }
1144
1145 /* copy packet to working buffer */
1146 memcpy(nic->packet, rxb + tp->cur_rx * BUFLEN, nic->packetlen);
1147
1148 /* return the descriptor and buffer to receive ring */
1149 rx_ring[tp->cur_rx].status = 0x80000000;
1150 tp->cur_rx = (++tp->cur_rx) % RX_RING_SIZE;
1151
1152 return 1;
1153 }
1154
1155 /*********************************************************************/
1156 /* eth_disable - Disable the interface */
1157 /*********************************************************************/
tulip_disable(struct nic * nic)1158 static void tulip_disable(struct nic *nic)
1159 {
1160
1161 #ifdef TULIP_DEBUG_WHERE
1162 whereami("tulip_disable\n");
1163 #endif
1164
1165 /* disable interrupts */
1166 outl(0x00000000, ioaddr + CSR7);
1167
1168 /* Stop the chip's Tx and Rx processes. */
1169 outl(inl(ioaddr + CSR6) & ~0x00002002, ioaddr + CSR6);
1170
1171 /* Clear the missed-packet counter. */
1172 (volatile unsigned long)inl(ioaddr + CSR8);
1173 }
1174
1175 /*********************************************************************/
1176 /* eth_probe - Look for an adapter */
1177 /*********************************************************************/
tulip_probe(struct nic * nic,unsigned short * io_addrs,struct pci_device * pci)1178 struct nic *tulip_probe(struct nic *nic, unsigned short *io_addrs,
1179 struct pci_device *pci)
1180 {
1181 u32 i, l1, l2;
1182 u8 chip_rev;
1183 u8 ee_data[EEPROM_SIZE];
1184 unsigned short sum;
1185 int chip_idx;
1186 static unsigned char last_phys_addr[ETH_ALEN] = {0x00, 'L', 'i', 'n', 'u', 'x'};
1187
1188 if (io_addrs == 0 || *io_addrs == 0)
1189 return 0;
1190
1191 ioaddr = *io_addrs;
1192
1193 /* point to private storage */
1194 tp = &tpx;
1195
1196 tp->vendor_id = pci->vendor;
1197 tp->dev_id = pci->dev_id;
1198 tp->nic_name = pci->name;
1199
1200 tp->if_port = 0;
1201 tp->default_port = 0;
1202
1203 adjust_pci_device(pci);
1204
1205 /* disable interrupts */
1206 outl(0x00000000, ioaddr + CSR7);
1207
1208 /* Stop the chip's Tx and Rx processes. */
1209 outl(inl(ioaddr + CSR6) & ~0x00002002, ioaddr + CSR6);
1210
1211 /* Clear the missed-packet counter. */
1212 (volatile unsigned long)inl(ioaddr + CSR8);
1213
1214 printf("\n"); /* so we start on a fresh line */
1215 #ifdef TULIP_DEBUG_WHERE
1216 whereami("tulip_probe\n");
1217 #endif
1218
1219 #ifdef TULIP_DEBUG
1220 if (tulip_debug > 1)
1221 printf ("%s: Looking for Tulip Chip: Vendor=%hX Device=%hX\n", tp->nic_name,
1222 tp->vendor_id, tp->dev_id);
1223 #endif
1224
1225 /* Figure out which chip we're dealing with */
1226 i = 0;
1227 chip_idx = -1;
1228
1229 while (pci_id_tbl[i].name) {
1230 if ( (((u32) tp->dev_id << 16) | tp->vendor_id) ==
1231 (pci_id_tbl[i].id.pci & pci_id_tbl[i].id.pci_mask) ) {
1232 chip_idx = pci_id_tbl[i].drv_flags;
1233 break;
1234 }
1235 i++;
1236 }
1237
1238 if (chip_idx == -1) {
1239 printf ("%s: Unknown Tulip Chip: Vendor=%hX Device=%hX\n", tp->nic_name,
1240 tp->vendor_id, tp->dev_id);
1241 return 0;
1242 }
1243
1244 tp->pci_id_idx = i;
1245 tp->flags = tulip_tbl[chip_idx].flags;
1246
1247 #ifdef TULIP_DEBUG
1248 if (tulip_debug > 1) {
1249 printf ("%s: tp->pci_id_idx == %d, name == %s\n", tp->nic_name,
1250 tp->pci_id_idx, pci_id_tbl[tp->pci_id_idx].name);
1251 printf ("%s: chip_idx == %d, name == %s\n", tp->nic_name, chip_idx,
1252 tulip_tbl[chip_idx].chip_name);
1253 }
1254 #endif
1255
1256 /* Bring the 21041/21143 out of sleep mode.
1257 Caution: Snooze mode does not work with some boards! */
1258 if (tp->flags & HAS_PWRDWN)
1259 pcibios_write_config_dword(pci->bus, pci->devfn, 0x40, 0x00000000);
1260
1261 if (inl(ioaddr + CSR5) == 0xFFFFFFFF) {
1262 printf("%s: The Tulip chip at %X is not functioning.\n",
1263 tp->nic_name, ioaddr);
1264 return 0;
1265 }
1266
1267 pcibios_read_config_byte(pci->bus, pci->devfn, PCI_REVISION, &chip_rev);
1268
1269 printf("%s: [chip: %s] rev %d at %hX\n", tp->nic_name,
1270 tulip_tbl[chip_idx].chip_name, chip_rev, ioaddr);
1271 printf("%s: Vendor=%hX Device=%hX", tp->nic_name, tp->vendor_id, tp->dev_id);
1272
1273 if (chip_idx == DC21041 && inl(ioaddr + CSR9) & 0x8000) {
1274 printf(" 21040 compatible mode.");
1275 chip_idx = DC21040;
1276 }
1277
1278 printf("\n");
1279
1280 /* The SROM/EEPROM interface varies dramatically. */
1281 sum = 0;
1282 if (chip_idx == DC21040) {
1283 outl(0, ioaddr + CSR9); /* Reset the pointer with a dummy write. */
1284 for (i = 0; i < ETH_ALEN; i++) {
1285 int value, boguscnt = 100000;
1286 do
1287 value = inl(ioaddr + CSR9);
1288 while (value < 0 && --boguscnt > 0);
1289 nic->node_addr[i] = value;
1290 sum += value & 0xff;
1291 }
1292 } else if (chip_idx == LC82C168) {
1293 for (i = 0; i < 3; i++) {
1294 int value, boguscnt = 100000;
1295 outl(0x600 | i, ioaddr + 0x98);
1296 do
1297 value = inl(ioaddr + CSR9);
1298 while (value < 0 && --boguscnt > 0);
1299 put_unaligned(le16_to_cpu(value), ((u16*)nic->node_addr) + i);
1300 sum += value & 0xffff;
1301 }
1302 } else if (chip_idx == COMET) {
1303 /* No need to read the EEPROM. */
1304 put_unaligned(inl(ioaddr + 0xA4), (u32 *)nic->node_addr);
1305 put_unaligned(inl(ioaddr + 0xA8), (u16 *)(nic->node_addr + 4));
1306 for (i = 0; i < ETH_ALEN; i ++)
1307 sum += nic->node_addr[i];
1308 } else {
1309 /* A serial EEPROM interface, we read now and sort it out later. */
1310 int sa_offset = 0;
1311 int ee_addr_size = read_eeprom(ioaddr, 0xff, 8) & 0x40000 ? 8 : 6;
1312
1313 for (i = 0; i < sizeof(ee_data)/2; i++)
1314 ((u16 *)ee_data)[i] =
1315 le16_to_cpu(read_eeprom(ioaddr, i, ee_addr_size));
1316
1317 /* DEC now has a specification (see Notes) but early board makers
1318 just put the address in the first EEPROM locations. */
1319 /* This does memcmp(eedata, eedata+16, 8) */
1320 for (i = 0; i < 8; i ++)
1321 if (ee_data[i] != ee_data[16+i])
1322 sa_offset = 20;
1323 if (ee_data[0] == 0xff && ee_data[1] == 0xff && ee_data[2] == 0) {
1324 sa_offset = 2; /* Grrr, damn Matrox boards. */
1325 }
1326 for (i = 0; i < ETH_ALEN; i ++) {
1327 nic->node_addr[i] = ee_data[i + sa_offset];
1328 sum += ee_data[i + sa_offset];
1329 }
1330 }
1331 /* Lite-On boards have the address byte-swapped. */
1332 if ((nic->node_addr[0] == 0xA0 || nic->node_addr[0] == 0xC0)
1333 && nic->node_addr[1] == 0x00)
1334 for (i = 0; i < ETH_ALEN; i+=2) {
1335 char tmp = nic->node_addr[i];
1336 nic->node_addr[i] = nic->node_addr[i+1];
1337 nic->node_addr[i+1] = tmp;
1338 }
1339
1340 if (sum == 0 || sum == ETH_ALEN*0xff) {
1341 printf("%s: EEPROM not present!\n", tp->nic_name);
1342 for (i = 0; i < ETH_ALEN-1; i++)
1343 nic->node_addr[i] = last_phys_addr[i];
1344 nic->node_addr[i] = last_phys_addr[i] + 1;
1345 }
1346
1347 for (i = 0; i < ETH_ALEN; i++)
1348 last_phys_addr[i] = nic->node_addr[i];
1349
1350 printf("%s: %! at ioaddr %hX\n", tp->nic_name, nic->node_addr, ioaddr);
1351
1352 tp->chip_id = chip_idx;
1353 tp->revision = chip_rev;
1354 tp->csr0 = csr0;
1355
1356 /* BugFixes: The 21143-TD hangs with PCI Write-and-Invalidate cycles.
1357 And the ASIX must have a burst limit or horrible things happen. */
1358 if (chip_idx == DC21143 && chip_rev == 65)
1359 tp->csr0 &= ~0x01000000;
1360 else if (tp->flags & IS_ASIX)
1361 tp->csr0 |= 0x2000;
1362
1363 if (media_cap[tp->default_port] & MediaIsMII) {
1364 u16 media2advert[] = { 0x20, 0x40, 0x03e0, 0x60, 0x80, 0x100, 0x200 };
1365 tp->mii_advertise = media2advert[tp->default_port - 9];
1366 tp->mii_advertise |= (tp->flags & HAS_8023X); /* Matching bits! */
1367 }
1368
1369 /* This is logically part of the probe routine, but too complex
1370 to write inline. */
1371 if (tp->flags & HAS_MEDIA_TABLE) {
1372 memcpy(tp->eeprom, ee_data, sizeof(tp->eeprom));
1373 parse_eeprom(nic);
1374 }
1375
1376 start_link(nic);
1377
1378 /* reset the device and make ready for tx and rx of packets */
1379 tulip_reset(nic);
1380
1381 nic->reset = tulip_reset;
1382 nic->poll = tulip_poll;
1383 nic->transmit = tulip_transmit;
1384 nic->disable = tulip_disable;
1385
1386 /* give the board a chance to reset before returning */
1387 tulip_wait(4*TICKS_PER_SEC);
1388
1389 return nic;
1390 }
1391
start_link(struct nic * nic)1392 static void start_link(struct nic *nic)
1393 {
1394 int i;
1395
1396 #ifdef TULIP_DEBUG_WHERE
1397 whereami("start_link\n");
1398 #endif
1399
1400 if ((tp->flags & ALWAYS_CHECK_MII) ||
1401 (tp->mtable && tp->mtable->has_mii) ||
1402 ( ! tp->mtable && (tp->flags & HAS_MII))) {
1403 unsigned int phy, phy_idx;
1404 if (tp->mtable && tp->mtable->has_mii) {
1405 for (i = 0; i < tp->mtable->leafcount; i++)
1406 if (tp->mtable->mleaf[i].media == 11) {
1407 tp->cur_index = i;
1408 tp->saved_if_port = tp->if_port;
1409 select_media(nic, 2);
1410 tp->if_port = tp->saved_if_port;
1411 break;
1412 }
1413 }
1414
1415 /* Find the connected MII xcvrs. */
1416 for (phy = 0, phy_idx = 0; phy < 32 && phy_idx < sizeof(tp->phys);
1417 phy++) {
1418 int mii_status = mdio_read(nic, phy, 1);
1419 if ((mii_status & 0x8301) == 0x8001 ||
1420 ((mii_status & 0x8000) == 0 && (mii_status & 0x7800) != 0)) {
1421 int mii_reg0 = mdio_read(nic, phy, 0);
1422 int mii_advert = mdio_read(nic, phy, 4);
1423 int to_advert;
1424
1425 if (tp->mii_advertise)
1426 to_advert = tp->mii_advertise;
1427 else if (tp->advertising[phy_idx])
1428 to_advert = tp->advertising[phy_idx];
1429 else /* Leave unchanged. */
1430 tp->mii_advertise = to_advert = mii_advert;
1431
1432 tp->phys[phy_idx++] = phy;
1433 printf("%s: MII transceiver %d config %hX status %hX advertising %hX.\n",
1434 tp->nic_name, phy, mii_reg0, mii_status, mii_advert);
1435 /* Fixup for DLink with miswired PHY. */
1436 if (mii_advert != to_advert) {
1437 printf("%s: Advertising %hX on PHY %d previously advertising %hX.\n",
1438 tp->nic_name, to_advert, phy, mii_advert);
1439 mdio_write(nic, phy, 4, to_advert);
1440 }
1441 /* Enable autonegotiation: some boards default to off. */
1442 mdio_write(nic, phy, 0, mii_reg0 |
1443 (tp->full_duplex ? 0x1100 : 0x1000) |
1444 (media_cap[tp->default_port]&MediaIs100 ? 0x2000:0));
1445 }
1446 }
1447 tp->mii_cnt = phy_idx;
1448 if (tp->mtable && tp->mtable->has_mii && phy_idx == 0) {
1449 printf("%s: ***WARNING***: No MII transceiver found!\n",
1450 tp->nic_name);
1451 tp->phys[0] = 1;
1452 }
1453 }
1454
1455 /* Reset the xcvr interface and turn on heartbeat. */
1456 switch (tp->chip_id) {
1457 case DC21040:
1458 outl(0x00000000, ioaddr + CSR13);
1459 outl(0x00000004, ioaddr + CSR13);
1460 break;
1461 case DC21041:
1462 /* This is nway_start(). */
1463 if (tp->sym_advertise == 0)
1464 tp->sym_advertise = 0x0061;
1465 outl(0x00000000, ioaddr + CSR13);
1466 outl(0xFFFFFFFF, ioaddr + CSR14);
1467 outl(0x00000008, ioaddr + CSR15); /* Listen on AUI also. */
1468 outl(inl(ioaddr + CSR6) | 0x0200, ioaddr + CSR6);
1469 outl(0x0000EF01, ioaddr + CSR13);
1470 break;
1471 case DC21140: default:
1472 if (tp->mtable)
1473 outl(tp->mtable->csr12dir | 0x100, ioaddr + CSR12);
1474 break;
1475 case DC21142:
1476 case PNIC2:
1477 if (tp->mii_cnt || media_cap[tp->if_port] & MediaIsMII) {
1478 outl(0x82020000, ioaddr + CSR6);
1479 outl(0x0000, ioaddr + CSR13);
1480 outl(0x0000, ioaddr + CSR14);
1481 outl(0x820E0000, ioaddr + CSR6);
1482 } else
1483 nway_start(nic);
1484 break;
1485 case LC82C168:
1486 if ( ! tp->mii_cnt) {
1487 tp->nway = 1;
1488 tp->nwayset = 0;
1489 outl(0x00420000, ioaddr + CSR6);
1490 outl(0x30, ioaddr + CSR12);
1491 outl(0x0001F078, ioaddr + 0xB8);
1492 outl(0x0201F078, ioaddr + 0xB8); /* Turn on autonegotiation. */
1493 }
1494 break;
1495 case MX98713: case COMPEX9881:
1496 outl(0x00000000, ioaddr + CSR6);
1497 outl(0x000711C0, ioaddr + CSR14); /* Turn on NWay. */
1498 outl(0x00000001, ioaddr + CSR13);
1499 break;
1500 case MX98715: case MX98725:
1501 outl(0x01a80000, ioaddr + CSR6);
1502 outl(0xFFFFFFFF, ioaddr + CSR14);
1503 outl(0x00001000, ioaddr + CSR12);
1504 break;
1505 case COMET:
1506 /* No initialization necessary. */
1507 break;
1508 }
1509 }
1510
nway_start(struct nic * nic)1511 static void nway_start(struct nic *nic)
1512 {
1513 int csr14 = ((tp->sym_advertise & 0x0780) << 9) |
1514 ((tp->sym_advertise&0x0020)<<1) | 0xffbf;
1515
1516 #ifdef TULIP_DEBUG_WHERE
1517 whereami("nway_start\n");
1518 #endif
1519
1520 tp->if_port = 0;
1521 tp->nway = tp->mediasense = 1;
1522 tp->nwayset = tp->lpar = 0;
1523 if (tp->chip_id == PNIC2) {
1524 tp->csr6 = 0x01000000 | (tp->sym_advertise & 0x0040 ? 0x0200 : 0);
1525 return;
1526 }
1527 #ifdef TULIP_DEBUG
1528 if (tulip_debug > 1)
1529 printf("%s: Restarting internal NWay autonegotiation, %X.\n",
1530 tp->nic_name, csr14);
1531 #endif
1532 outl(0x0001, ioaddr + CSR13);
1533 outl(csr14, ioaddr + CSR14);
1534 tp->csr6 = 0x82420000 | (tp->sym_advertise & 0x0040 ? 0x0200 : 0);
1535 outl(tp->csr6, ioaddr + CSR6);
1536 if (tp->mtable && tp->mtable->csr15dir) {
1537 outl(tp->mtable->csr15dir, ioaddr + CSR15);
1538 outl(tp->mtable->csr15val, ioaddr + CSR15);
1539 } else if (tp->chip_id != PNIC2)
1540 outw(0x0008, ioaddr + CSR15);
1541 if (tp->chip_id == DC21041) /* Trigger NWAY. */
1542 outl(0xEF01, ioaddr + CSR12);
1543 else
1544 outl(0x1301, ioaddr + CSR12);
1545 }
1546
init_media(struct nic * nic)1547 static void init_media(struct nic *nic)
1548 {
1549 int i;
1550
1551 #ifdef TULIP_DEBUG_WHERE
1552 whereami("init_media\n");
1553 #endif
1554
1555 tp->saved_if_port = tp->if_port;
1556 if (tp->if_port == 0)
1557 tp->if_port = tp->default_port;
1558
1559 /* Allow selecting a default media. */
1560 i = 0;
1561 if (tp->mtable == NULL)
1562 goto media_picked;
1563 if (tp->if_port) {
1564 int looking_for = media_cap[tp->if_port] & MediaIsMII ? 11 :
1565 (tp->if_port == 12 ? 0 : tp->if_port);
1566 for (i = 0; i < tp->mtable->leafcount; i++)
1567 if (tp->mtable->mleaf[i].media == looking_for) {
1568 printf("%s: Using user-specified media %s.\n",
1569 tp->nic_name, medianame[tp->if_port]);
1570 goto media_picked;
1571 }
1572 }
1573 if ((tp->mtable->defaultmedia & 0x0800) == 0) {
1574 int looking_for = tp->mtable->defaultmedia & 15;
1575 for (i = 0; i < tp->mtable->leafcount; i++)
1576 if (tp->mtable->mleaf[i].media == looking_for) {
1577 printf("%s: Using EEPROM-set media %s.\n",
1578 tp->nic_name, medianame[looking_for]);
1579 goto media_picked;
1580 }
1581 }
1582 /* Start sensing first non-full-duplex media. */
1583 for (i = tp->mtable->leafcount - 1;
1584 (media_cap[tp->mtable->mleaf[i].media] & MediaAlwaysFD) && i > 0; i--)
1585 ;
1586 media_picked:
1587
1588 tp->csr6 = 0;
1589 tp->cur_index = i;
1590 tp->nwayset = 0;
1591
1592 if (tp->if_port) {
1593 if (tp->chip_id == DC21143 && media_cap[tp->if_port] & MediaIsMII) {
1594 /* We must reset the media CSRs when we force-select MII mode. */
1595 outl(0x0000, ioaddr + CSR13);
1596 outl(0x0000, ioaddr + CSR14);
1597 outl(0x0008, ioaddr + CSR15);
1598 }
1599 select_media(nic, 1);
1600 return;
1601 }
1602 switch(tp->chip_id) {
1603 case DC21041:
1604 /* tp->nway = 1;*/
1605 nway_start(nic);
1606 break;
1607 case DC21142:
1608 if (tp->mii_cnt) {
1609 select_media(nic, 1);
1610 #ifdef TULIP_DEBUG
1611 if (tulip_debug > 1)
1612 printf("%s: Using MII transceiver %d, status %hX.\n",
1613 tp->nic_name, tp->phys[0], mdio_read(nic, tp->phys[0], 1));
1614 #endif
1615 outl(0x82020000, ioaddr + CSR6);
1616 tp->csr6 = 0x820E0000;
1617 tp->if_port = 11;
1618 outl(0x0000, ioaddr + CSR13);
1619 outl(0x0000, ioaddr + CSR14);
1620 } else
1621 nway_start(nic);
1622 break;
1623 case PNIC2:
1624 nway_start(nic);
1625 break;
1626 case LC82C168:
1627 if (tp->mii_cnt) {
1628 tp->if_port = 11;
1629 tp->csr6 = 0x814C0000 | (tp->full_duplex ? 0x0200 : 0);
1630 outl(0x0001, ioaddr + CSR15);
1631 } else if (inl(ioaddr + CSR5) & TPLnkPass)
1632 pnic_do_nway(nic);
1633 else {
1634 /* Start with 10mbps to do autonegotiation. */
1635 outl(0x32, ioaddr + CSR12);
1636 tp->csr6 = 0x00420000;
1637 outl(0x0001B078, ioaddr + 0xB8);
1638 outl(0x0201B078, ioaddr + 0xB8);
1639 }
1640 break;
1641 case MX98713: case COMPEX9881:
1642 tp->if_port = 0;
1643 tp->csr6 = 0x01880000 | (tp->full_duplex ? 0x0200 : 0);
1644 outl(0x0f370000 | inw(ioaddr + 0x80), ioaddr + 0x80);
1645 break;
1646 case MX98715: case MX98725:
1647 /* Provided by BOLO, Macronix - 12/10/1998. */
1648 tp->if_port = 0;
1649 tp->csr6 = 0x01a80200;
1650 outl(0x0f370000 | inw(ioaddr + 0x80), ioaddr + 0x80);
1651 outl(0x11000 | inw(ioaddr + 0xa0), ioaddr + 0xa0);
1652 break;
1653 case COMET:
1654 tp->if_port = 0;
1655 tp->csr6 = 0x00040000;
1656 break;
1657 case AX88140: case AX88141:
1658 tp->csr6 = tp->mii_cnt ? 0x00040100 : 0x00000100;
1659 break;
1660 default:
1661 select_media(nic, 1);
1662 }
1663 }
1664
pnic_do_nway(struct nic * nic)1665 static void pnic_do_nway(struct nic *nic)
1666 {
1667 u32 phy_reg = inl(ioaddr + 0xB8);
1668 u32 new_csr6 = tp->csr6 & ~0x40C40200;
1669
1670 #ifdef TULIP_DEBUG_WHERE
1671 whereami("pnic_do_nway\n");
1672 #endif
1673
1674 if (phy_reg & 0x78000000) { /* Ignore baseT4 */
1675 if (phy_reg & 0x20000000) tp->if_port = 5;
1676 else if (phy_reg & 0x40000000) tp->if_port = 3;
1677 else if (phy_reg & 0x10000000) tp->if_port = 4;
1678 else if (phy_reg & 0x08000000) tp->if_port = 0;
1679 tp->nwayset = 1;
1680 new_csr6 = (tp->if_port & 1) ? 0x01860000 : 0x00420000;
1681 outl(0x32 | (tp->if_port & 1), ioaddr + CSR12);
1682 if (tp->if_port & 1)
1683 outl(0x1F868, ioaddr + 0xB8);
1684 if (phy_reg & 0x30000000) {
1685 tp->full_duplex = 1;
1686 new_csr6 |= 0x00000200;
1687 }
1688 #ifdef TULIP_DEBUG
1689 if (tulip_debug > 1)
1690 printf("%s: PNIC autonegotiated status %X, %s.\n",
1691 tp->nic_name, phy_reg, medianame[tp->if_port]);
1692 #endif
1693 if (tp->csr6 != new_csr6) {
1694 tp->csr6 = new_csr6;
1695 outl(tp->csr6 | 0x0002, ioaddr + CSR6); /* Restart Tx */
1696 outl(tp->csr6 | 0x2002, ioaddr + CSR6);
1697 }
1698 }
1699 }
1700
1701 /* Set up the transceiver control registers for the selected media type. */
select_media(struct nic * nic,int startup)1702 static void select_media(struct nic *nic, int startup)
1703 {
1704 struct mediatable *mtable = tp->mtable;
1705 u32 new_csr6;
1706 int i;
1707
1708 #ifdef TULIP_DEBUG_WHERE
1709 whereami("select_media\n");
1710 #endif
1711
1712 if (mtable) {
1713 struct medialeaf *mleaf = &mtable->mleaf[tp->cur_index];
1714 unsigned char *p = mleaf->leafdata;
1715 switch (mleaf->type) {
1716 case 0: /* 21140 non-MII xcvr. */
1717 #ifdef TULIP_DEBUG
1718 if (tulip_debug > 1)
1719 printf("%s: Using a 21140 non-MII transceiver"
1720 " with control setting %hhX.\n",
1721 tp->nic_name, p[1]);
1722 #endif
1723 tp->if_port = p[0];
1724 if (startup)
1725 outl(mtable->csr12dir | 0x100, ioaddr + CSR12);
1726 outl(p[1], ioaddr + CSR12);
1727 new_csr6 = 0x02000000 | ((p[2] & 0x71) << 18);
1728 break;
1729 case 2: case 4: {
1730 u16 setup[5];
1731 u32 csr13val, csr14val, csr15dir, csr15val;
1732 for (i = 0; i < 5; i++)
1733 setup[i] = get_u16(&p[i*2 + 1]);
1734
1735 tp->if_port = p[0] & 15;
1736 if (media_cap[tp->if_port] & MediaAlwaysFD)
1737 tp->full_duplex = 1;
1738
1739 if (startup && mtable->has_reset) {
1740 struct medialeaf *rleaf = &mtable->mleaf[mtable->has_reset];
1741 unsigned char *rst = rleaf->leafdata;
1742 #ifdef TULIP_DEBUG
1743 if (tulip_debug > 1)
1744 printf("%s: Resetting the transceiver.\n",
1745 tp->nic_name);
1746 #endif
1747 for (i = 0; i < rst[0]; i++)
1748 outl(get_u16(rst + 1 + (i<<1)) << 16, ioaddr + CSR15);
1749 }
1750 #ifdef TULIP_DEBUG
1751 if (tulip_debug > 1)
1752 printf("%s: 21143 non-MII %s transceiver control "
1753 "%hX/%hX.\n",
1754 tp->nic_name, medianame[tp->if_port], setup[0], setup[1]);
1755 #endif
1756 if (p[0] & 0x40) { /* SIA (CSR13-15) setup values are provided. */
1757 csr13val = setup[0];
1758 csr14val = setup[1];
1759 csr15dir = (setup[3]<<16) | setup[2];
1760 csr15val = (setup[4]<<16) | setup[2];
1761 outl(0, ioaddr + CSR13);
1762 outl(csr14val, ioaddr + CSR14);
1763 outl(csr15dir, ioaddr + CSR15); /* Direction */
1764 outl(csr15val, ioaddr + CSR15); /* Data */
1765 outl(csr13val, ioaddr + CSR13);
1766 } else {
1767 csr13val = 1;
1768 csr14val = 0x0003FF7F;
1769 csr15dir = (setup[0]<<16) | 0x0008;
1770 csr15val = (setup[1]<<16) | 0x0008;
1771 if (tp->if_port <= 4)
1772 csr14val = t21142_csr14[tp->if_port];
1773 if (startup) {
1774 outl(0, ioaddr + CSR13);
1775 outl(csr14val, ioaddr + CSR14);
1776 }
1777 outl(csr15dir, ioaddr + CSR15); /* Direction */
1778 outl(csr15val, ioaddr + CSR15); /* Data */
1779 if (startup) outl(csr13val, ioaddr + CSR13);
1780 }
1781 #ifdef TULIP_DEBUG
1782 if (tulip_debug > 1)
1783 printf("%s: Setting CSR15 to %X/%X.\n",
1784 tp->nic_name, csr15dir, csr15val);
1785 #endif
1786 if (mleaf->type == 4)
1787 new_csr6 = 0x82020000 | ((setup[2] & 0x71) << 18);
1788 else
1789 new_csr6 = 0x82420000;
1790 break;
1791 }
1792 case 1: case 3: {
1793 int phy_num = p[0];
1794 int init_length = p[1];
1795 u16 *misc_info;
1796
1797 tp->if_port = 11;
1798 new_csr6 = 0x020E0000;
1799 if (mleaf->type == 3) { /* 21142 */
1800 u16 *init_sequence = (u16*)(p+2);
1801 u16 *reset_sequence = &((u16*)(p+3))[init_length];
1802 int reset_length = p[2 + init_length*2];
1803 misc_info = reset_sequence + reset_length;
1804 if (startup)
1805 for (i = 0; i < reset_length; i++)
1806 outl(get_u16(&reset_sequence[i]) << 16, ioaddr + CSR15);
1807 for (i = 0; i < init_length; i++)
1808 outl(get_u16(&init_sequence[i]) << 16, ioaddr + CSR15);
1809 } else {
1810 u8 *init_sequence = p + 2;
1811 u8 *reset_sequence = p + 3 + init_length;
1812 int reset_length = p[2 + init_length];
1813 misc_info = (u16*)(reset_sequence + reset_length);
1814 if (startup) {
1815 outl(mtable->csr12dir | 0x100, ioaddr + CSR12);
1816 for (i = 0; i < reset_length; i++)
1817 outl(reset_sequence[i], ioaddr + CSR12);
1818 }
1819 for (i = 0; i < init_length; i++)
1820 outl(init_sequence[i], ioaddr + CSR12);
1821 }
1822 tp->advertising[phy_num] = get_u16(&misc_info[1]) | 1;
1823 if (startup < 2) {
1824 if (tp->mii_advertise == 0)
1825 tp->mii_advertise = tp->advertising[phy_num];
1826 #ifdef TULIP_DEBUG
1827 if (tulip_debug > 1)
1828 printf("%s: Advertising %hX on MII %d.\n",
1829 tp->nic_name, tp->mii_advertise, tp->phys[phy_num]);
1830 #endif
1831 mdio_write(nic, tp->phys[phy_num], 4, tp->mii_advertise);
1832 }
1833 break;
1834 }
1835 default:
1836 printf("%s: Invalid media table selection %d.\n",
1837 tp->nic_name, mleaf->type);
1838 new_csr6 = 0x020E0000;
1839 }
1840 #ifdef TULIP_DEBUG
1841 if (tulip_debug > 1)
1842 printf("%s: Using media type %s, CSR12 is %hhX.\n",
1843 tp->nic_name, medianame[tp->if_port],
1844 inl(ioaddr + CSR12) & 0xff);
1845 #endif
1846 } else if (tp->chip_id == DC21041) {
1847 int port = tp->if_port <= 4 ? tp->if_port : 0;
1848 #ifdef TULIP_DEBUG
1849 if (tulip_debug > 1)
1850 printf("%s: 21041 using media %s, CSR12 is %hX.\n",
1851 tp->nic_name, medianame[port == 3 ? 12: port],
1852 inl(ioaddr + CSR12));
1853 #endif
1854 outl(0x00000000, ioaddr + CSR13); /* Reset the serial interface */
1855 outl(t21041_csr14[port], ioaddr + CSR14);
1856 outl(t21041_csr15[port], ioaddr + CSR15);
1857 outl(t21041_csr13[port], ioaddr + CSR13);
1858 new_csr6 = 0x80020000;
1859 } else if (tp->chip_id == LC82C168) {
1860 if (startup && ! tp->medialock)
1861 tp->if_port = tp->mii_cnt ? 11 : 0;
1862 #ifdef TULIP_DEBUG
1863 if (tulip_debug > 1)
1864 printf("%s: PNIC PHY status is %hX, media %s.\n",
1865 tp->nic_name, inl(ioaddr + 0xB8), medianame[tp->if_port]);
1866 #endif
1867 if (tp->mii_cnt) {
1868 new_csr6 = 0x810C0000;
1869 outl(0x0001, ioaddr + CSR15);
1870 outl(0x0201B07A, ioaddr + 0xB8);
1871 } else if (startup) {
1872 /* Start with 10mbps to do autonegotiation. */
1873 outl(0x32, ioaddr + CSR12);
1874 new_csr6 = 0x00420000;
1875 outl(0x0001B078, ioaddr + 0xB8);
1876 outl(0x0201B078, ioaddr + 0xB8);
1877 } else if (tp->if_port == 3 || tp->if_port == 5) {
1878 outl(0x33, ioaddr + CSR12);
1879 new_csr6 = 0x01860000;
1880 /* Trigger autonegotiation. */
1881 outl(startup ? 0x0201F868 : 0x0001F868, ioaddr + 0xB8);
1882 } else {
1883 outl(0x32, ioaddr + CSR12);
1884 new_csr6 = 0x00420000;
1885 outl(0x1F078, ioaddr + 0xB8);
1886 }
1887 } else if (tp->chip_id == DC21040) { /* 21040 */
1888 /* Turn on the xcvr interface. */
1889 int csr12 = inl(ioaddr + CSR12);
1890 #ifdef TULIP_DEBUG
1891 if (tulip_debug > 1)
1892 printf("%s: 21040 media type is %s, CSR12 is %hhX.\n",
1893 tp->nic_name, medianame[tp->if_port], csr12);
1894 #endif
1895 if (media_cap[tp->if_port] & MediaAlwaysFD)
1896 tp->full_duplex = 1;
1897 new_csr6 = 0x20000;
1898 /* Set the full duplux match frame. */
1899 outl(FULL_DUPLEX_MAGIC, ioaddr + CSR11);
1900 outl(0x00000000, ioaddr + CSR13); /* Reset the serial interface */
1901 if (t21040_csr13[tp->if_port] & 8) {
1902 outl(0x0705, ioaddr + CSR14);
1903 outl(0x0006, ioaddr + CSR15);
1904 } else {
1905 outl(0xffff, ioaddr + CSR14);
1906 outl(0x0000, ioaddr + CSR15);
1907 }
1908 outl(0x8f01 | t21040_csr13[tp->if_port], ioaddr + CSR13);
1909 } else { /* Unknown chip type with no media table. */
1910 if (tp->default_port == 0)
1911 tp->if_port = tp->mii_cnt ? 11 : 3;
1912 if (media_cap[tp->if_port] & MediaIsMII) {
1913 new_csr6 = 0x020E0000;
1914 } else if (media_cap[tp->if_port] & MediaIsFx) {
1915 new_csr6 = 0x028600000;
1916 } else
1917 new_csr6 = 0x038600000;
1918 #ifdef TULIP_DEBUG
1919 if (tulip_debug > 1)
1920 printf("%s: No media description table, assuming "
1921 "%s transceiver, CSR12 %hhX.\n",
1922 tp->nic_name, medianame[tp->if_port],
1923 inl(ioaddr + CSR12));
1924 #endif
1925 }
1926
1927 tp->csr6 = new_csr6 | (tp->csr6 & 0xfdff) | (tp->full_duplex ? 0x0200 : 0);
1928 return;
1929 }
1930
1931 /*
1932 Check the MII negotiated duplex and change the CSR6 setting if
1933 required.
1934 Return 0 if everything is OK.
1935 Return < 0 if the transceiver is missing or has no link beat.
1936 */
tulip_check_duplex(struct nic * nic)1937 static int tulip_check_duplex(struct nic *nic)
1938 {
1939 unsigned int bmsr, lpa, negotiated, new_csr6;
1940
1941 bmsr = mdio_read(nic, tp->phys[0], 1);
1942 lpa = mdio_read(nic, tp->phys[0], 5);
1943
1944 #ifdef TULIP_DEBUG
1945 if (tulip_debug > 1)
1946 printf("%s: MII status %#x, Link partner report "
1947 "%#x.\n", tp->nic_name, bmsr, lpa);
1948 #endif
1949
1950 if (bmsr == 0xffff)
1951 return -2;
1952 if ((bmsr & 4) == 0) {
1953 int new_bmsr = mdio_read(nic, tp->phys[0], 1);
1954 if ((new_bmsr & 4) == 0) {
1955 #ifdef TULIP_DEBUG
1956 if (tulip_debug > 1)
1957 printf("%s: No link beat on the MII interface,"
1958 " status %#x.\n", tp->nic_name,
1959 new_bmsr);
1960 #endif
1961 return -1;
1962 }
1963 }
1964 tp->full_duplex = lpa & 0x140;
1965
1966 new_csr6 = tp->csr6;
1967 negotiated = lpa & tp->advertising[0];
1968
1969 if(negotiated & 0x380) new_csr6 &= ~0x400000;
1970 else new_csr6 |= 0x400000;
1971 if (tp->full_duplex) new_csr6 |= 0x200;
1972 else new_csr6 &= ~0x200;
1973
1974 if (new_csr6 != tp->csr6) {
1975 tp->csr6 = new_csr6;
1976
1977 #ifdef TULIP_DEBUG
1978 if (tulip_debug > 0)
1979 printf("%s: Setting %s-duplex based on MII"
1980 "#%d link partner capability of %#x.\n",
1981 tp->nic_name,
1982 tp->full_duplex ? "full" : "half",
1983 tp->phys[0], lpa);
1984 #endif
1985 return 1;
1986 }
1987
1988 return 0;
1989 }
1990