FreeBSD/Linux Kernel Cross Reference
sys/pci/if_tireg.h
1 /*
2 * Copyright (c) 1997, 1998, 1999
3 * Bill Paul <wpaul@ctr.columbia.edu>. All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
8 * 1. Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright
11 * notice, this list of conditions and the following disclaimer in the
12 * documentation and/or other materials provided with the distribution.
13 * 3. All advertising materials mentioning features or use of this software
14 * must display the following acknowledgement:
15 * This product includes software developed by Bill Paul.
16 * 4. Neither the name of the author nor the names of any co-contributors
17 * may be used to endorse or promote products derived from this software
18 * without specific prior written permission.
19 *
20 * THIS SOFTWARE IS PROVIDED BY Bill Paul AND CONTRIBUTORS ``AS IS'' AND
21 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
22 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
23 * ARE DISCLAIMED. IN NO EVENT SHALL Bill Paul OR THE VOICES IN HIS HEAD
24 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
25 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
26 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
27 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
28 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
29 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
30 * THE POSSIBILITY OF SUCH DAMAGE.
31 *
32 * $FreeBSD: releng/5.2/sys/pci/if_tireg.h 122689 2003-11-14 19:00:32Z sam $
33 */
34
35 /*
36 * Tigon register offsets. These are memory mapped registers
37 * which can be accessed with the CSR_READ_4()/CSR_WRITE_4() macros.
38 * Each register must be accessed using 32 bit operations.
39 *
40 * All reegisters are accessed through a 16K shared memory block.
41 * The first group of registers are actually copies of the PCI
42 * configuration space registers.
43 */
44
45 #define TI_PCI_ID 0x000 /* PCI device/vendor ID */
46 #define TI_PCI_CMDSTAT 0x004
47 #define TI_PCI_CLASSCODE 0x008
48 #define TI_PCI_BIST 0x00C
49 #define TI_PCI_LOMEM 0x010 /* Shared memory base address */
50 #define TI_PCI_SUBSYS 0x02C
51 #define TI_PCI_ROMBASE 0x030
52 #define TI_PCI_INT 0x03C
53
54 #ifndef PCIM_CMD_MWIEN
55 #define PCIM_CMD_MWIEN 0x0010
56 #endif
57
58 /*
59 * Alteon AceNIC PCI vendor/device ID.
60 */
61 #define ALT_VENDORID 0x12AE
62 #define ALT_DEVICEID_ACENIC 0x0001
63 #define ALT_DEVICEID_ACENIC_COPPER 0x0002
64
65 /*
66 * 3Com 3c985 PCI vendor/device ID.
67 */
68 #define TC_VENDORID 0x10B7
69 #define TC_DEVICEID_3C985 0x0001
70
71 /*
72 * Netgear GA620 PCI vendor/device ID.
73 */
74 #define NG_VENDORID 0x1385
75 #define NG_DEVICEID_GA620 0x620A
76 #define NG_DEVICEID_GA620T 0x630A
77
78 /*
79 * SGI device/vendor ID.
80 */
81 #define SGI_VENDORID 0x10A9
82 #define SGI_DEVICEID_TIGON 0x0009
83
84 /*
85 * DEC vendor ID, Farallon device ID. Apparently, Farallon used
86 * the DEC vendor ID in their cards by mistake.
87 */
88 #define DEC_VENDORID 0x1011
89 #define DEC_DEVICEID_FARALLON_PN9000SX 0x001a
90
91 /*
92 * Tigon configuration and control registers.
93 */
94 #define TI_MISC_HOST_CTL 0x040
95 #define TI_MISC_LOCAL_CTL 0x044
96 #define TI_SEM_AB 0x048 /* Tigon 2 only */
97 #define TI_MISC_CONF 0x050 /* Tigon 2 only */
98 #define TI_TIMER_BITS 0x054
99 #define TI_TIMERREF 0x058
100 #define TI_PCI_STATE 0x05C
101 #define TI_MAIN_EVENT_A 0x060
102 #define TI_MAILBOX_EVENT_A 0x064
103 #define TI_WINBASE 0x068
104 #define TI_WINDATA 0x06C
105 #define TI_MAIN_EVENT_B 0x070 /* Tigon 2 only */
106 #define TI_MAILBOX_EVENT_B 0x074 /* Tigon 2 only */
107 #define TI_TIMERREF_B 0x078 /* Tigon 2 only */
108 #define TI_SERIAL 0x07C
109
110 /*
111 * Misc host control bits.
112 */
113 #define TI_MHC_INTSTATE 0x00000001
114 #define TI_MHC_CLEARINT 0x00000002
115 #define TI_MHC_RESET 0x00000008
116 #define TI_MHC_BYTE_SWAP_ENB 0x00000010
117 #define TI_MHC_WORD_SWAP_ENB 0x00000020
118 #define TI_MHC_MASK_INTS 0x00000040
119 #define TI_MHC_CHIP_REV_MASK 0xF0000000
120
121 #define TI_MHC_BIGENDIAN_INIT \
122 (TI_MHC_BYTE_SWAP_ENB|TI_MHC_WORD_SWAP_ENB|TI_MHC_CLEARINT)
123
124 #define TI_MHC_LITTLEENDIAN_INIT \
125 (TI_MHC_WORD_SWAP_ENB|TI_MHC_CLEARINT)
126
127 /*
128 * Tigon chip rev values. Rev 4 is the Tigon 1. Rev 6 is the Tigon 2.
129 * Rev 5 is also the Tigon 2, but is a broken version which was never
130 * used in any actual hardware, so we ignore it.
131 */
132 #define TI_REV_TIGON_I 0x40000000
133 #define TI_REV_TIGON_II 0x60000000
134
135 /*
136 * Firmware revision that we want.
137 */
138 #define TI_FIRMWARE_MAJOR 0xc
139 #define TI_FIRMWARE_MINOR 0x4
140 #define TI_FIRMWARE_FIX 0xb
141
142 /*
143 * Miscelaneous Local Control register.
144 */
145 #define TI_MLC_EE_WRITE_ENB 0x00000010
146 #define TI_MLC_SRAM_BANK_SIZE 0x00000300 /* Tigon 2 only */
147 #define TI_MLC_LOCALADDR_21 0x00004000
148 #define TI_MLC_LOCALADDR_22 0x00008000
149 #define TI_MLC_SBUS_WRITEERR 0x00080000
150 #define TI_MLC_EE_CLK 0x00100000
151 #define TI_MLC_EE_TXEN 0x00200000
152 #define TI_MLC_EE_DOUT 0x00400000
153 #define TI_MLC_EE_DIN 0x00800000
154
155 /* Possible memory sizes. */
156 #define TI_MLC_SRAM_BANK_DISA 0x00000000
157 #define TI_MLC_SRAM_BANK_1024K 0x00000100
158 #define TI_MLC_SRAM_BANK_512K 0x00000200
159 #define TI_MLC_SRAM_BANK_256K 0x00000300
160
161 /*
162 * Offset of MAC address inside EEPROM.
163 */
164 #define TI_EE_MAC_OFFSET 0x8c
165
166 #define TI_DMA_ASSIST 0x11C
167 #define TI_CPU_STATE 0x140
168 #define TI_CPU_PROGRAM_COUNTER 0x144
169 #define TI_SRAM_ADDR 0x154
170 #define TI_SRAM_DATA 0x158
171 #define TI_GEN_0 0x180
172 #define TI_GEN_X 0x1FC
173 #define TI_MAC_TX_STATE 0x200
174 #define TI_MAC_RX_STATE 0x220
175 #define TI_CPU_CTL_B 0x240 /* Tigon 2 only */
176 #define TI_CPU_PROGRAM_COUNTER_B 0x244 /* Tigon 2 only */
177 #define TI_SRAM_ADDR_B 0x254 /* Tigon 2 only */
178 #define TI_SRAM_DATA_B 0x258 /* Tigon 2 only */
179 #define TI_GEN_B_0 0x280 /* Tigon 2 only */
180 #define TI_GEN_B_X 0x2FC /* Tigon 2 only */
181
182 /*
183 * Misc config register.
184 */
185 #define TI_MCR_SRAM_SYNCHRONOUS 0x00100000 /* Tigon 2 only */
186
187 /*
188 * PCI state register.
189 */
190 #define TI_PCISTATE_FORCE_RESET 0x00000001
191 #define TI_PCISTATE_PROVIDE_LEN 0x00000002
192 #define TI_PCISTATE_READ_MAXDMA 0x0000001C
193 #define TI_PCISTATE_WRITE_MAXDMA 0x000000E0
194 #define TI_PCISTATE_MINDMA 0x0000FF00
195 #define TI_PCISTATE_FIFO_RETRY_ENB 0x00010000
196 #define TI_PCISTATE_USE_MEM_RD_MULT 0x00020000
197 #define TI_PCISTATE_NO_SWAP_READ_DMA 0x00040000
198 #define TI_PCISTATE_NO_SWAP_WRITE_DMA 0x00080000
199 #define TI_PCISTATE_66MHZ_BUS 0x00080000 /* Tigon 2 only */
200 #define TI_PCISTATE_32BIT_BUS 0x00100000 /* Tigon 2 only */
201 #define TI_PCISTATE_ENB_BYTE_ENABLES 0x00800000 /* Tigon 2 only */
202 #define TI_PCISTATE_READ_CMD 0x0F000000
203 #define TI_PCISTATE_WRITE_CMD 0xF0000000
204
205 #define TI_PCI_READMAX_4 0x04
206 #define TI_PCI_READMAX_16 0x08
207 #define TI_PCI_READMAX_32 0x0C
208 #define TI_PCI_READMAX_64 0x10
209 #define TI_PCI_READMAX_128 0x14
210 #define TI_PCI_READMAX_256 0x18
211 #define TI_PCI_READMAX_1024 0x1C
212
213 #define TI_PCI_WRITEMAX_4 0x20
214 #define TI_PCI_WRITEMAX_16 0x40
215 #define TI_PCI_WRITEMAX_32 0x60
216 #define TI_PCI_WRITEMAX_64 0x80
217 #define TI_PCI_WRITEMAX_128 0xA0
218 #define TI_PCI_WRITEMAX_256 0xC0
219 #define TI_PCI_WRITEMAX_1024 0xE0
220
221 #define TI_PCI_READ_CMD 0x06000000
222 #define TI_PCI_WRITE_CMD 0x70000000
223
224 /*
225 * DMA state register.
226 */
227 #define TI_DMASTATE_ENABLE 0x00000001
228 #define TI_DMASTATE_PAUSE 0x00000002
229
230 /*
231 * CPU state register.
232 */
233 #define TI_CPUSTATE_RESET 0x00000001
234 #define TI_CPUSTATE_STEP 0x00000002
235 #define TI_CPUSTATE_ROMFAIL 0x00000010
236 #define TI_CPUSTATE_HALT 0x00010000
237 /*
238 * MAC TX state register
239 */
240 #define TI_TXSTATE_RESET 0x00000001
241 #define TI_TXSTATE_ENB 0x00000002
242 #define TI_TXSTATE_STOP 0x00000004
243
244 /*
245 * MAC RX state register
246 */
247 #define TI_RXSTATE_RESET 0x00000001
248 #define TI_RXSTATE_ENB 0x00000002
249 #define TI_RXSTATE_STOP 0x00000004
250
251 /*
252 * Tigon 2 mailbox registers. The mailbox area consists of 256 bytes
253 * split into 64 bit registers. Only the lower 32 bits of each mailbox
254 * are used.
255 */
256 #define TI_MB_HOSTINTR_HI 0x500
257 #define TI_MB_HOSTINTR_LO 0x504
258 #define TI_MB_HOSTINTR TI_MB_HOSTINTR_LO
259 #define TI_MB_CMDPROD_IDX_HI 0x508
260 #define TI_MB_CMDPROD_IDX_LO 0x50C
261 #define TI_MB_CMDPROD_IDX TI_MB_CMDPROD_IDX_LO
262 #define TI_MB_SENDPROD_IDX_HI 0x510
263 #define TI_MB_SENDPROD_IDX_LO 0x514
264 #define TI_MB_SENDPROD_IDX TI_MB_SENDPROD_IDX_LO
265 #define TI_MB_STDRXPROD_IDX_HI 0x518 /* Tigon 2 only */
266 #define TI_MB_STDRXPROD_IDX_LO 0x51C /* Tigon 2 only */
267 #define TI_MB_STDRXPROD_IDX TI_MB_STDRXPROD_IDX_LO
268 #define TI_MB_JUMBORXPROD_IDX_HI 0x520 /* Tigon 2 only */
269 #define TI_MB_JUMBORXPROD_IDX_LO 0x524 /* Tigon 2 only */
270 #define TI_MB_JUMBORXPROD_IDX TI_MB_JUMBORXPROD_IDX_LO
271 #define TI_MB_MINIRXPROD_IDX_HI 0x528 /* Tigon 2 only */
272 #define TI_MB_MINIRXPROD_IDX_LO 0x52C /* Tigon 2 only */
273 #define TI_MB_MINIRXPROD_IDX TI_MB_MINIRXPROD_IDX_LO
274 #define TI_MB_RSVD 0x530
275
276 /*
277 * Tigon 2 general communication registers. These are 64 and 32 bit
278 * registers which are only valid after the firmware has been
279 * loaded and started. They actually exist in NIC memory but are
280 * mapped into the host memory via the shared memory region.
281 *
282 * The NIC internally maps these registers starting at address 0,
283 * so to determine the NIC address of any of these registers, we
284 * subtract 0x600 (the address of the first register).
285 */
286
287 #define TI_GCR_BASE 0x600
288 #define TI_GCR_MACADDR 0x600
289 #define TI_GCR_PAR0 0x600
290 #define TI_GCR_PAR1 0x604
291 #define TI_GCR_GENINFO_HI 0x608
292 #define TI_GCR_GENINFO_LO 0x60C
293 #define TI_GCR_MCASTADDR 0x610 /* obsolete */
294 #define TI_GCR_MAR0 0x610 /* obsolete */
295 #define TI_GCR_MAR1 0x614 /* obsolete */
296 #define TI_GCR_OPMODE 0x618
297 #define TI_GCR_DMA_READCFG 0x61C
298 #define TI_GCR_DMA_WRITECFG 0x620
299 #define TI_GCR_TX_BUFFER_RATIO 0x624
300 #define TI_GCR_EVENTCONS_IDX 0x628
301 #define TI_GCR_CMDCONS_IDX 0x62C
302 #define TI_GCR_TUNEPARMS 0x630
303 #define TI_GCR_RX_COAL_TICKS 0x630
304 #define TI_GCR_TX_COAL_TICKS 0x634
305 #define TI_GCR_STAT_TICKS 0x638
306 #define TI_GCR_TX_MAX_COAL_BD 0x63C
307 #define TI_GCR_RX_MAX_COAL_BD 0x640
308 #define TI_GCR_NIC_TRACING 0x644
309 #define TI_GCR_GLINK 0x648
310 #define TI_GCR_LINK 0x64C
311 #define TI_GCR_NICTRACE_PTR 0x650
312 #define TI_GCR_NICTRACE_START 0x654
313 #define TI_GCR_NICTRACE_LEN 0x658
314 #define TI_GCR_IFINDEX 0x65C
315 #define TI_GCR_IFMTU 0x660
316 #define TI_GCR_MASK_INTRS 0x664
317 #define TI_GCR_GLINK_STAT 0x668
318 #define TI_GCR_LINK_STAT 0x66C
319 #define TI_GCR_RXRETURNCONS_IDX 0x680
320 #define TI_GCR_CMDRING 0x700
321
322 #define TI_GCR_NIC_ADDR(x) (x - TI_GCR_BASE);
323
324 /*
325 * Local memory window. The local memory window is a 2K shared
326 * memory region which can be used to access the NIC's internal
327 * SRAM. The window can be mapped to a given 2K region using
328 * the TI_WINDOW_BASE register.
329 */
330 #define TI_WINDOW 0x800
331 #define TI_WINLEN 0x800
332
333 #define TI_TICKS_PER_SEC 1000000
334
335 /*
336 * Operation mode register.
337 */
338 #define TI_OPMODE_BYTESWAP_BD 0x00000002
339 #define TI_OPMODE_WORDSWAP_BD 0x00000004
340 #define TI_OPMODE_WARN_ENB 0x00000008 /* not yet implimented */
341 #define TI_OPMODE_BYTESWAP_DATA 0x00000010
342 #define TI_OPMODE_1_DMA_ACTIVE 0x00000040
343 #define TI_OPMODE_SBUS 0x00000100
344 #define TI_OPMODE_DONT_FRAG_JUMBO 0x00000200
345 #define TI_OPMODE_INCLUDE_CRC 0x00000400
346 #define TI_OPMODE_RX_BADFRAMES 0x00000800
347 #define TI_OPMODE_NO_EVENT_INTRS 0x00001000
348 #define TI_OPMODE_NO_TX_INTRS 0x00002000
349 #define TI_OPMODE_NO_RX_INTRS 0x00004000
350 #define TI_OPMODE_FATAL_ENB 0x40000000 /* not yet implimented */
351 #define TI_OPMODE_JUMBO_HDRSPLIT 0x00008000
352
353 /*
354 * DMA configuration thresholds.
355 */
356 #define TI_DMA_STATE_THRESH_16W 0x00000100
357 #define TI_DMA_STATE_THRESH_8W 0x00000080
358 #define TI_DMA_STATE_THRESH_4W 0x00000040
359 #define TI_DMA_STATE_THRESH_2W 0x00000020
360 #define TI_DMA_STATE_THRESH_1W 0x00000010
361
362 #define TI_DMA_STATE_FORCE_32_BIT 0x00000008
363
364 /*
365 * Gigabit link status bits.
366 */
367 #define TI_GLNK_SENSE_NO_BEG 0x00002000
368 #define TI_GLNK_LOOPBACK 0x00004000
369 #define TI_GLNK_PREF 0x00008000
370 #define TI_GLNK_1000MB 0x00040000
371 #define TI_GLNK_FULL_DUPLEX 0x00080000
372 #define TI_GLNK_TX_FLOWCTL_Y 0x00200000 /* Tigon 2 only */
373 #define TI_GLNK_RX_FLOWCTL_Y 0x00800000
374 #define TI_GLNK_AUTONEGENB 0x20000000
375 #define TI_GLNK_ENB 0x40000000
376
377 /*
378 * Link status bits.
379 */
380 #define TI_LNK_LOOPBACK 0x00004000
381 #define TI_LNK_PREF 0x00008000
382 #define TI_LNK_10MB 0x00010000
383 #define TI_LNK_100MB 0x00020000
384 #define TI_LNK_1000MB 0x00040000
385 #define TI_LNK_FULL_DUPLEX 0x00080000
386 #define TI_LNK_HALF_DUPLEX 0x00100000
387 #define TI_LNK_TX_FLOWCTL_Y 0x00200000 /* Tigon 2 only */
388 #define TI_LNK_RX_FLOWCTL_Y 0x00800000
389 #define TI_LNK_AUTONEGENB 0x20000000
390 #define TI_LNK_ENB 0x40000000
391
392 /*
393 * Ring size constants.
394 */
395 #define TI_EVENT_RING_CNT 256
396 #define TI_CMD_RING_CNT 64
397 #define TI_STD_RX_RING_CNT 512
398 #define TI_JUMBO_RX_RING_CNT 256
399 #define TI_MINI_RX_RING_CNT 1024
400 #define TI_RETURN_RING_CNT 2048
401
402 /*
403 * Possible TX ring sizes.
404 */
405 #define TI_TX_RING_CNT_128 128
406 #define TI_TX_RING_BASE_128 0x3800
407
408 #define TI_TX_RING_CNT_256 256
409 #define TI_TX_RING_BASE_256 0x3000
410
411 #define TI_TX_RING_CNT_512 512
412 #define TI_TX_RING_BASE_512 0x2000
413
414 #define TI_TX_RING_CNT TI_TX_RING_CNT_512
415 #define TI_TX_RING_BASE TI_TX_RING_BASE_512
416
417 /*
418 * The Tigon can have up to 8MB of external SRAM, however the Tigon 1
419 * is limited to 2MB total, and in general I think most adapters have
420 * around 1MB. We use this value for zeroing the NIC's SRAM, so to
421 * be safe we use the largest possible value (zeroing memory that
422 * isn't there doesn't hurt anything).
423 */
424 #define TI_MEM_MAX 0x7FFFFF
425
426 /*
427 * Maximum register address on the Tigon.
428 */
429 #define TI_REG_MAX 0x3fff
430
431 /*
432 * These values were taken from Alteon's tg.h.
433 */
434 #define TI_BEG_SRAM 0x0 /* host thinks it's here */
435 #define TI_BEG_SCRATCH 0xc00000 /* beg of scratch pad area */
436 #define TI_END_SRAM_II 0x800000 /* end of SRAM, for 2 MB stuffed */
437 #define TI_END_SCRATCH_II 0xc04000 /* end of scratch pad CPU A (16KB) */
438 #define TI_END_SCRATCH_B 0xc02000 /* end of scratch pad CPU B (8KB) */
439 #define TI_BEG_SCRATCH_B_DEBUG 0xd00000 /* beg of scratch pad for ioctl */
440 #define TI_END_SCRATCH_B_DEBUG 0xd02000 /* end of scratch pad for ioctl */
441 #define TI_SCRATCH_DEBUG_OFF 0x100000 /* offset for ioctl usage */
442 #define TI_END_SRAM_I 0x200000 /* end of SRAM, for 2 MB stuffed */
443 #define TI_END_SCRATCH_I 0xc00800 /* end of scratch pad area (2KB) */
444 #define TI_BEG_PROM 0x40000000 /* beg of PROM, special access */
445 #define TI_BEG_FLASH 0x80000000 /* beg of EEPROM, special access */
446 #define TI_END_FLASH 0x80100000 /* end of EEPROM for 1 MB stuff */
447 #define TI_BEG_SER_EEPROM 0xa0000000 /* beg of Serial EEPROM (fake out) */
448 #define TI_END_SER_EEPROM 0xa0002000 /* end of Serial EEPROM (fake out) */
449 #define TI_BEG_REGS 0xc0000000 /* beg of register area */
450 #define TI_END_REGS 0xc0000400 /* end of register area */
451 #define TI_END_WRITE_REGS 0xc0000180 /* can't write GPRs currently */
452 #define TI_BEG_REGS2 0xc0000200 /* beg of second writeable reg area */
453 /* the EEPROM is byte addressable in a pretty odd way */
454 #define EEPROM_BYTE_LOC 0xff000000
455
456 /*
457 * From Alteon's tg.h.
458 */
459 #define TI_PROCESSOR_A 0
460 #define TI_PROCESSOR_B 1
461 #define TI_CPU_A TG_PROCESSOR_A
462 #define TI_CPU_B TG_PROCESSOR_B
463
464 /*
465 * Following macro can be used to access to any of the CPU registers
466 * It will adjust the address appropriately.
467 * Parameters:
468 * reg - The register to access, e.g TI_CPU_CONTROL
469 * cpu - cpu, i.e PROCESSOR_A or PROCESSOR_B (or TI_CPU_A or TI_CPU_B)
470 */
471 #define CPU_REG(reg, cpu) ((reg) + (cpu) * 0x100)
472
473 /*
474 * Even on the alpha, pci addresses are 32-bit quantities
475 */
476
477 #ifdef __64_bit_pci_addressing__
478 typedef struct {
479 u_int64_t ti_addr;
480 } ti_hostaddr;
481 #define TI_HOSTADDR(x) x.ti_addr
482 #else
483 typedef struct {
484 u_int32_t ti_addr_hi;
485 u_int32_t ti_addr_lo;
486 } ti_hostaddr;
487 #define TI_HOSTADDR(x) x.ti_addr_lo
488 #endif
489
490 /*
491 * Ring control block structure. The rules for the max_len field
492 * are as follows:
493 *
494 * For the send ring, max_len indicates the number of entries in the
495 * ring (128, 256 or 512).
496 *
497 * For the standard receive ring, max_len indicates the threshold
498 * used to decide when a frame should be put in the jumbo receive ring
499 * instead of the standard one.
500 *
501 * For the mini ring, max_len indicates the size of the buffers in the
502 * ring. This is the value used to decide when a frame is small enough
503 * to be placed in the mini ring.
504 *
505 * For the return receive ring, max_len indicates the number of entries
506 * in the ring. It can be one of 2048, 1024 or 0 (which is the same as
507 * 2048 for backwards compatibility). The value 1024 can only be used
508 * if the mini ring is disabled.
509 */
510 struct ti_rcb {
511 ti_hostaddr ti_hostaddr;
512 #if BYTE_ORDER == BIG_ENDIAN
513 u_int16_t ti_max_len;
514 u_int16_t ti_flags;
515 #else
516 u_int16_t ti_flags;
517 u_int16_t ti_max_len;
518 #endif
519 u_int32_t ti_unused;
520 };
521
522 #define TI_RCB_FLAG_TCP_UDP_CKSUM 0x00000001
523 #define TI_RCB_FLAG_IP_CKSUM 0x00000002
524 #define TI_RCB_FLAG_NO_PHDR_CKSUM 0x00000008
525 #define TI_RCB_FLAG_VLAN_ASSIST 0x00000010
526 #define TI_RCB_FLAG_COAL_UPD_ONLY 0x00000020
527 #define TI_RCB_FLAG_HOST_RING 0x00000040
528 #define TI_RCB_FLAG_IEEE_SNAP_CKSUM 0x00000080
529 #define TI_RCB_FLAG_USE_EXT_RX_BD 0x00000100
530 #define TI_RCB_FLAG_RING_DISABLED 0x00000200
531
532 struct ti_producer {
533 u_int32_t ti_idx;
534 u_int32_t ti_unused;
535 };
536
537 /*
538 * Tigon general information block. This resides in host memory
539 * and contains the status counters, ring control blocks and
540 * producer pointers.
541 */
542
543 struct ti_gib {
544 struct ti_stats ti_stats;
545 struct ti_rcb ti_ev_rcb;
546 struct ti_rcb ti_cmd_rcb;
547 struct ti_rcb ti_tx_rcb;
548 struct ti_rcb ti_std_rx_rcb;
549 struct ti_rcb ti_jumbo_rx_rcb;
550 struct ti_rcb ti_mini_rx_rcb;
551 struct ti_rcb ti_return_rcb;
552 ti_hostaddr ti_ev_prodidx_ptr;
553 ti_hostaddr ti_return_prodidx_ptr;
554 ti_hostaddr ti_tx_considx_ptr;
555 ti_hostaddr ti_refresh_stats_ptr;
556 };
557
558 /*
559 * Buffer descriptor structures. There are basically three types
560 * of structures: normal receive descriptors, extended receive
561 * descriptors and transmit descriptors. The extended receive
562 * descriptors are optionally used only for the jumbo receive ring.
563 */
564
565 struct ti_rx_desc {
566 ti_hostaddr ti_addr;
567 #if BYTE_ORDER == BIG_ENDIAN
568 u_int16_t ti_idx;
569 u_int16_t ti_len;
570 #else
571 u_int16_t ti_len;
572 u_int16_t ti_idx;
573 #endif
574 #if BYTE_ORDER == BIG_ENDIAN
575 u_int16_t ti_type;
576 u_int16_t ti_flags;
577 #else
578 u_int16_t ti_flags;
579 u_int16_t ti_type;
580 #endif
581 #if BYTE_ORDER == BIG_ENDIAN
582 u_int16_t ti_ip_cksum;
583 u_int16_t ti_tcp_udp_cksum;
584 #else
585 u_int16_t ti_tcp_udp_cksum;
586 u_int16_t ti_ip_cksum;
587 #endif
588 #if BYTE_ORDER == BIG_ENDIAN
589 u_int16_t ti_error_flags;
590 u_int16_t ti_vlan_tag;
591 #else
592 u_int16_t ti_vlan_tag;
593 u_int16_t ti_error_flags;
594 #endif
595 u_int32_t ti_rsvd;
596 u_int32_t ti_opaque;
597 };
598
599 struct ti_rx_desc_ext {
600 ti_hostaddr ti_addr1;
601 ti_hostaddr ti_addr2;
602 ti_hostaddr ti_addr3;
603 #if BYTE_ORDER == BIG_ENDIAN
604 u_int16_t ti_len1;
605 u_int16_t ti_len2;
606 #else
607 u_int16_t ti_len2;
608 u_int16_t ti_len1;
609 #endif
610 #if BYTE_ORDER == BIG_ENDIAN
611 u_int16_t ti_len3;
612 u_int16_t ti_rsvd0;
613 #else
614 u_int16_t ti_rsvd0;
615 u_int16_t ti_len3;
616 #endif
617 ti_hostaddr ti_addr0;
618 #if BYTE_ORDER == BIG_ENDIAN
619 u_int16_t ti_idx;
620 u_int16_t ti_len0;
621 #else
622 u_int16_t ti_len0;
623 u_int16_t ti_idx;
624 #endif
625 #if BYTE_ORDER == BIG_ENDIAN
626 u_int16_t ti_type;
627 u_int16_t ti_flags;
628 #else
629 u_int16_t ti_flags;
630 u_int16_t ti_type;
631 #endif
632 #if BYTE_ORDER == BIG_ENDIAN
633 u_int16_t ti_ip_cksum;
634 u_int16_t ti_tcp_udp_cksum;
635 #else
636 u_int16_t ti_tcp_udp_cksum;
637 u_int16_t ti_ip_cksum;
638 #endif
639 #if BYTE_ORDER == BIG_ENDIAN
640 u_int16_t ti_error_flags;
641 u_int16_t ti_vlan_tag;
642 #else
643 u_int16_t ti_vlan_tag;
644 u_int16_t ti_error_flags;
645 #endif
646 u_int32_t ti_rsvd1;
647 u_int32_t ti_opaque;
648 };
649
650 /*
651 * Transmit descriptors are, mercifully, very small.
652 */
653 struct ti_tx_desc {
654 ti_hostaddr ti_addr;
655 #if BYTE_ORDER == BIG_ENDIAN
656 u_int16_t ti_len;
657 u_int16_t ti_flags;
658 #else
659 u_int16_t ti_flags;
660 u_int16_t ti_len;
661 #endif
662 #if BYTE_ORDER == BIG_ENDIAN
663 u_int16_t ti_rsvd;
664 u_int16_t ti_vlan_tag;
665 #else
666 u_int16_t ti_vlan_tag;
667 u_int16_t ti_rsvd;
668 #endif
669 };
670
671 /*
672 * NOTE! On the Alpha, we have an alignment constraint.
673 * The first thing in the packet is a 14-byte Ethernet header.
674 * This means that the packet is misaligned. To compensate,
675 * we actually offset the data 2 bytes into the cluster. This
676 * alignes the packet after the Ethernet header at a 32-bit
677 * boundary.
678 */
679
680 #define ETHER_ALIGN 2
681
682 #define TI_FRAMELEN 1518
683 #define TI_JUMBO_FRAMELEN 9018
684 #define TI_JUMBO_MTU (TI_JUMBO_FRAMELEN-ETHER_HDR_LEN-ETHER_CRC_LEN)
685 #define TI_PAGE_SIZE PAGE_SIZE
686 #define TI_MIN_FRAMELEN 60
687
688 /*
689 * Buffer descriptor error flags.
690 */
691 #define TI_BDERR_CRC 0x0001
692 #define TI_BDERR_COLLDETECT 0x0002
693 #define TI_BDERR_LINKLOST 0x0004
694 #define TI_BDERR_DECODE 0x0008
695 #define TI_BDERR_ODD_NIBBLES 0x0010
696 #define TI_BDERR_MAC_ABRT 0x0020
697 #define TI_BDERR_RUNT 0x0040
698 #define TI_BDERR_TRUNC 0x0080
699 #define TI_BDERR_GIANT 0x0100
700
701 /*
702 * Buffer descriptor flags.
703 */
704 #define TI_BDFLAG_TCP_UDP_CKSUM 0x0001
705 #define TI_BDFLAG_IP_CKSUM 0x0002
706 #define TI_BDFLAG_END 0x0004
707 #define TI_BDFLAG_MORE 0x0008
708 #define TI_BDFLAG_JUMBO_RING 0x0010
709 #define TI_BDFLAG_UCAST_PKT 0x0020
710 #define TI_BDFLAG_MCAST_PKT 0x0040
711 #define TI_BDFLAG_BCAST_PKT 0x0060
712 #define TI_BDFLAG_IP_FRAG 0x0080
713 #define TI_BDFLAG_IP_FRAG_END 0x0100
714 #define TI_BDFLAG_VLAN_TAG 0x0200
715 #define TI_BDFLAG_ERROR 0x0400
716 #define TI_BDFLAG_COAL_NOW 0x0800
717 #define TI_BDFLAG_MINI_RING 0x1000
718
719 /*
720 * Descriptor type flags. I think these only have meaning for
721 * the Tigon 1. I had to extract them from the sample driver source
722 * since they aren't in the manual.
723 */
724 #define TI_BDTYPE_TYPE_NULL 0x0000
725 #define TI_BDTYPE_SEND_BD 0x0001
726 #define TI_BDTYPE_RECV_BD 0x0002
727 #define TI_BDTYPE_RECV_JUMBO_BD 0x0003
728 #define TI_BDTYPE_RECV_BD_LAST 0x0004
729 #define TI_BDTYPE_SEND_DATA 0x0005
730 #define TI_BDTYPE_SEND_DATA_LAST 0x0006
731 #define TI_BDTYPE_RECV_DATA 0x0007
732 #define TI_BDTYPE_RECV_DATA_LAST 0x000b
733 #define TI_BDTYPE_EVENT_RUPT 0x000c
734 #define TI_BDTYPE_EVENT_NO_RUPT 0x000d
735 #define TI_BDTYPE_ODD_START 0x000e
736 #define TI_BDTYPE_UPDATE_STATS 0x000f
737 #define TI_BDTYPE_SEND_DUMMY_DMA 0x0010
738 #define TI_BDTYPE_EVENT_PROD 0x0011
739 #define TI_BDTYPE_TX_CONS 0x0012
740 #define TI_BDTYPE_RX_PROD 0x0013
741 #define TI_BDTYPE_REFRESH_STATS 0x0014
742 #define TI_BDTYPE_SEND_DATA_LAST_VLAN 0x0015
743 #define TI_BDTYPE_SEND_DATA_COAL 0x0016
744 #define TI_BDTYPE_SEND_DATA_LAST_COAL 0x0017
745 #define TI_BDTYPE_SEND_DATA_LAST_VLAN_COAL 0x0018
746 #define TI_BDTYPE_TX_CONS_NO_INTR 0x0019
747
748 /*
749 * Tigon command structure.
750 */
751 struct ti_cmd_desc {
752 #if BYTE_ORDER == BIG_ENDIAN
753 u_int32_t ti_cmd:8;
754 u_int32_t ti_code:12;
755 u_int32_t ti_idx:12;
756 #else
757 u_int32_t ti_idx:12;
758 u_int32_t ti_code:12;
759 u_int32_t ti_cmd:8;
760 #endif
761 };
762
763 #define TI_CMD_HOST_STATE 0x01
764 #define TI_CMD_CODE_STACK_UP 0x01
765 #define TI_CMD_CODE_STACK_DOWN 0x02
766
767 /*
768 * This command enables software address filtering. It's a workaround
769 * for a bug in the Tigon 1 and not implemented for the Tigon 2.
770 */
771 #define TI_CMD_FDR_FILTERING 0x02
772 #define TI_CMD_CODE_FILT_ENB 0x01
773 #define TI_CMD_CODE_FILT_DIS 0x02
774
775 #define TI_CMD_SET_RX_PROD_IDX 0x03 /* obsolete */
776 #define TI_CMD_UPDATE_GENCOM 0x04
777 #define TI_CMD_RESET_JUMBO_RING 0x05
778 #define TI_CMD_SET_PARTIAL_RX_CNT 0x06
779 #define TI_CMD_ADD_MCAST_ADDR 0x08 /* obsolete */
780 #define TI_CMD_DEL_MCAST_ADDR 0x09 /* obsolete */
781
782 #define TI_CMD_SET_PROMISC_MODE 0x0A
783 #define TI_CMD_CODE_PROMISC_ENB 0x01
784 #define TI_CMD_CODE_PROMISC_DIS 0x02
785
786 #define TI_CMD_LINK_NEGOTIATION 0x0B
787 #define TI_CMD_CODE_NEGOTIATE_BOTH 0x00
788 #define TI_CMD_CODE_NEGOTIATE_GIGABIT 0x01
789 #define TI_CMD_CODE_NEGOTIATE_10_100 0x02
790
791 #define TI_CMD_SET_MAC_ADDR 0x0C
792 #define TI_CMD_CLR_PROFILE 0x0D
793
794 #define TI_CMD_SET_ALLMULTI 0x0E
795 #define TI_CMD_CODE_ALLMULTI_ENB 0x01
796 #define TI_CMD_CODE_ALLMULTI_DIS 0x02
797
798 #define TI_CMD_CLR_STATS 0x0F
799 #define TI_CMD_SET_RX_JUMBO_PROD_IDX 0x10 /* obsolete */
800 #define TI_CMD_RFRSH_STATS 0x11
801
802 #define TI_CMD_EXT_ADD_MCAST 0x12
803 #define TI_CMD_EXT_DEL_MCAST 0x13
804
805 /*
806 * Utility macros to make issuing commands a little simpler. Assumes
807 * that 'sc' and 'cmd' are in local scope.
808 */
809 #define TI_DO_CMD(x, y, z) \
810 cmd.ti_cmd = (x); \
811 cmd.ti_code = (y); \
812 cmd.ti_idx = (z); \
813 ti_cmd(sc, &cmd);
814
815 #define TI_DO_CMD_EXT(x, y, z, v, w) \
816 cmd.ti_cmd = (x); \
817 cmd.ti_code = (y); \
818 cmd.ti_idx = (z); \
819 ti_cmd_ext(sc, &cmd, (v), (w));
820
821 /*
822 * Other utility macros.
823 */
824 #define TI_INC(x, y) (x) = (x + 1) % y
825
826 #define TI_UPDATE_JUMBOPROD(x, y) \
827 if (x->ti_hwrev == TI_HWREV_TIGON) { \
828 TI_DO_CMD(TI_CMD_SET_RX_JUMBO_PROD_IDX, 0, y); \
829 } else { \
830 CSR_WRITE_4(x, TI_MB_JUMBORXPROD_IDX, y); \
831 }
832
833 #define TI_UPDATE_MINIPROD(x, y) \
834 CSR_WRITE_4(x, TI_MB_MINIRXPROD_IDX, y);
835
836 #define TI_UPDATE_STDPROD(x, y) \
837 if (x->ti_hwrev == TI_HWREV_TIGON) { \
838 TI_DO_CMD(TI_CMD_SET_RX_PROD_IDX, 0, y); \
839 } else { \
840 CSR_WRITE_4(x, TI_MB_STDRXPROD_IDX, y); \
841 }
842
843
844 /*
845 * Tigon event structure.
846 */
847 struct ti_event_desc {
848 #if BYTE_ORDER == BIG_ENDIAN
849 u_int32_t ti_event:8;
850 u_int32_t ti_code:12;
851 u_int32_t ti_idx:12;
852 #else
853 u_int32_t ti_idx:12;
854 u_int32_t ti_code:12;
855 u_int32_t ti_event:8;
856 #endif
857 u_int32_t ti_rsvd;
858 };
859
860 /*
861 * Tigon events.
862 */
863 #define TI_EV_FIRMWARE_UP 0x01
864 #define TI_EV_STATS_UPDATED 0x04
865
866 #define TI_EV_LINKSTAT_CHANGED 0x06
867 #define TI_EV_CODE_GIG_LINK_UP 0x01
868 #define TI_EV_CODE_LINK_DOWN 0x02
869 #define TI_EV_CODE_LINK_UP 0x03
870
871 #define TI_EV_ERROR 0x07
872 #define TI_EV_CODE_ERR_INVAL_CMD 0x01
873 #define TI_EV_CODE_ERR_UNIMP_CMD 0x02
874 #define TI_EV_CODE_ERR_BADCFG 0x03
875
876 #define TI_EV_MCAST_UPDATED 0x08
877 #define TI_EV_CODE_MCAST_ADD 0x01
878 #define TI_EV_CODE_MCAST_DEL 0x02
879
880 #define TI_EV_RESET_JUMBO_RING 0x09
881 /*
882 * Register access macros. The Tigon always uses memory mapped register
883 * accesses and all registers must be accessed with 32 bit operations.
884 */
885
886 #define CSR_WRITE_4(sc, reg, val) \
887 bus_space_write_4(sc->ti_btag, sc->ti_bhandle, reg, val)
888
889 #define CSR_READ_4(sc, reg) \
890 bus_space_read_4(sc->ti_btag, sc->ti_bhandle, reg)
891
892 #define TI_SETBIT(sc, reg, x) \
893 CSR_WRITE_4(sc, reg, (CSR_READ_4(sc, reg) | x))
894 #define TI_CLRBIT(sc, reg, x) \
895 CSR_WRITE_4(sc, reg, (CSR_READ_4(sc, reg) & ~x))
896
897 /*
898 * Memory management stuff. Note: the SSLOTS, MSLOTS and JSLOTS
899 * values are tuneable. They control the actual amount of buffers
900 * allocated for the standard, mini and jumbo receive rings.
901 */
902
903 #define TI_SSLOTS 256
904 #define TI_MSLOTS 256
905 #define TI_JSLOTS 384
906
907 #define TI_JRAWLEN (TI_JUMBO_FRAMELEN + ETHER_ALIGN)
908 #define TI_JLEN (TI_JRAWLEN + (sizeof(u_int64_t) - \
909 (TI_JRAWLEN % sizeof(u_int64_t))))
910 #define TI_JPAGESZ PAGE_SIZE
911 #define TI_RESID (TI_JPAGESZ - (TI_JLEN * TI_JSLOTS) % TI_JPAGESZ)
912 #define TI_JMEM ((TI_JLEN * TI_JSLOTS) + TI_RESID)
913
914 /*
915 * Ring structures. Most of these reside in host memory and we tell
916 * the NIC where they are via the ring control blocks. The exceptions
917 * are the tx and command rings, which live in NIC memory and which
918 * we access via the shared memory window.
919 */
920 struct ti_ring_data {
921 struct ti_rx_desc ti_rx_std_ring[TI_STD_RX_RING_CNT];
922 #ifdef PRIVATE_JUMBOS
923 struct ti_rx_desc ti_rx_jumbo_ring[TI_JUMBO_RX_RING_CNT];
924 #else
925 struct ti_rx_desc_ext ti_rx_jumbo_ring[TI_JUMBO_RX_RING_CNT];
926 #endif
927 struct ti_rx_desc ti_rx_mini_ring[TI_MINI_RX_RING_CNT];
928 struct ti_rx_desc ti_rx_return_ring[TI_RETURN_RING_CNT];
929 struct ti_event_desc ti_event_ring[TI_EVENT_RING_CNT];
930 struct ti_tx_desc ti_tx_ring[TI_TX_RING_CNT];
931 /*
932 * Make sure producer structures are aligned on 32-byte cache
933 * line boundaries.
934 */
935 struct ti_producer ti_ev_prodidx_r;
936 u_int32_t ti_pad0[6];
937 struct ti_producer ti_return_prodidx_r;
938 u_int32_t ti_pad1[6];
939 struct ti_producer ti_tx_considx_r;
940 u_int32_t ti_pad2[6];
941 struct ti_tx_desc *ti_tx_ring_nic;/* pointer to shared mem */
942 struct ti_cmd_desc *ti_cmd_ring; /* pointer to shared mem */
943 struct ti_gib ti_info;
944 };
945
946 /*
947 * Mbuf pointers. We need these to keep track of the virtual addresses
948 * of our mbuf chains since we can only convert from physical to virtual,
949 * not the other way around.
950 */
951 struct ti_chain_data {
952 struct mbuf *ti_tx_chain[TI_TX_RING_CNT];
953 struct mbuf *ti_rx_std_chain[TI_STD_RX_RING_CNT];
954 struct mbuf *ti_rx_jumbo_chain[TI_JUMBO_RX_RING_CNT];
955 struct mbuf *ti_rx_mini_chain[TI_MINI_RX_RING_CNT];
956 /* Stick the jumbo mem management stuff here too. */
957 caddr_t ti_jslots[TI_JSLOTS];
958 void *ti_jumbo_buf;
959 };
960
961 struct ti_type {
962 u_int16_t ti_vid;
963 u_int16_t ti_did;
964 char *ti_name;
965 };
966
967 #define TI_HWREV_TIGON 0x01
968 #define TI_HWREV_TIGON_II 0x02
969 #define TI_TIMEOUT 1000
970 #define TI_TXCONS_UNSET 0xFFFF /* impossible value */
971
972 struct ti_mc_entry {
973 struct ether_addr mc_addr;
974 SLIST_ENTRY(ti_mc_entry) mc_entries;
975 };
976
977 struct ti_jpool_entry {
978 int slot;
979 SLIST_ENTRY(ti_jpool_entry) jpool_entries;
980 };
981
982 typedef enum {
983 TI_FLAG_NONE = 0x00,
984 TI_FLAG_DEBUGING = 0x01,
985 TI_FLAG_WAIT_FOR_LINK = 0x02
986 } ti_flag_vals;
987
988 struct ti_softc {
989 STAILQ_ENTRY(ti_softc) ti_links;
990 struct arpcom arpcom; /* interface info */
991 bus_space_handle_t ti_bhandle;
992 vm_offset_t ti_vhandle;
993 bus_space_tag_t ti_btag;
994 void *ti_intrhand;
995 struct resource *ti_irq;
996 struct resource *ti_res;
997 struct ifmedia ifmedia; /* media info */
998 u_int8_t ti_unit; /* interface number */
999 u_int8_t ti_hwrev; /* Tigon rev (1 or 2) */
1000 u_int8_t ti_copper; /* 1000baseTX card */
1001 u_int8_t ti_linkstat; /* Link state */
1002 int ti_hdrsplit; /* enable header splitting */
1003 struct ti_ring_data *ti_rdata; /* rings */
1004 struct ti_chain_data ti_cdata; /* mbufs */
1005 #define ti_ev_prodidx ti_rdata->ti_ev_prodidx_r
1006 #define ti_return_prodidx ti_rdata->ti_return_prodidx_r
1007 #define ti_tx_considx ti_rdata->ti_tx_considx_r
1008 u_int16_t ti_tx_saved_considx;
1009 u_int16_t ti_rx_saved_considx;
1010 u_int16_t ti_ev_saved_considx;
1011 u_int16_t ti_cmd_saved_prodidx;
1012 u_int16_t ti_std; /* current std ring head */
1013 u_int16_t ti_mini; /* current mini ring head */
1014 u_int16_t ti_jumbo; /* current jumo ring head */
1015 SLIST_HEAD(__ti_mchead, ti_mc_entry) ti_mc_listhead;
1016 SLIST_HEAD(__ti_jfreehead, ti_jpool_entry) ti_jfree_listhead;
1017 SLIST_HEAD(__ti_jinusehead, ti_jpool_entry) ti_jinuse_listhead;
1018 u_int32_t ti_stat_ticks;
1019 u_int32_t ti_rx_coal_ticks;
1020 u_int32_t ti_tx_coal_ticks;
1021 u_int32_t ti_rx_max_coal_bds;
1022 u_int32_t ti_tx_max_coal_bds;
1023 u_int32_t ti_tx_buf_ratio;
1024 int ti_if_flags;
1025 int ti_txcnt;
1026 struct mtx ti_mtx;
1027 ti_flag_vals ti_flags;
1028 dev_t dev;
1029 };
1030
1031 #define TI_LOCK(_sc) mtx_lock(&(_sc)->ti_mtx)
1032 #define TI_UNLOCK(_sc) mtx_unlock(&(_sc)->ti_mtx)
1033 #define TI_LOCK_ASSERT(_sc) mtx_assert(&(_sc)->ti_mtx, MA_OWNED)
1034
1035 /*
1036 * Microchip Technology 24Cxx EEPROM control bytes
1037 */
1038 #define EEPROM_CTL_READ 0xA1 /* 0101 0001 */
1039 #define EEPROM_CTL_WRITE 0xA0 /* 0101 0000 */
1040
1041 /*
1042 * Note that EEPROM_START leaves transmission enabled.
1043 */
1044 #define EEPROM_START \
1045 TI_SETBIT(sc, TI_MISC_LOCAL_CTL, TI_MLC_EE_CLK); /* Pull clock pin high */\
1046 TI_SETBIT(sc, TI_MISC_LOCAL_CTL, TI_MLC_EE_DOUT); /* Set DATA bit to 1 */ \
1047 TI_SETBIT(sc, TI_MISC_LOCAL_CTL, TI_MLC_EE_TXEN); /* Enable xmit to write bit */\
1048 TI_CLRBIT(sc, TI_MISC_LOCAL_CTL, TI_MLC_EE_DOUT); /* Pull DATA bit to 0 again */\
1049 TI_CLRBIT(sc, TI_MISC_LOCAL_CTL, TI_MLC_EE_CLK); /* Pull clock low again */
1050
1051 /*
1052 * EEPROM_STOP ends access to the EEPROM and clears the ETXEN bit so
1053 * that no further data can be written to the EEPROM I/O pin.
1054 */
1055 #define EEPROM_STOP \
1056 TI_CLRBIT(sc, TI_MISC_LOCAL_CTL, TI_MLC_EE_TXEN); /* Disable xmit */ \
1057 TI_CLRBIT(sc, TI_MISC_LOCAL_CTL, TI_MLC_EE_DOUT); /* Pull DATA to 0 */ \
1058 TI_SETBIT(sc, TI_MISC_LOCAL_CTL, TI_MLC_EE_CLK); /* Pull clock high */ \
1059 TI_SETBIT(sc, TI_MISC_LOCAL_CTL, TI_MLC_EE_TXEN); /* Enable xmit */ \
1060 TI_SETBIT(sc, TI_MISC_LOCAL_CTL, TI_MLC_EE_DOUT); /* Toggle DATA to 1 */ \
1061 TI_CLRBIT(sc, TI_MISC_LOCAL_CTL, TI_MLC_EE_TXEN); /* Disable xmit. */ \
1062 TI_CLRBIT(sc, TI_MISC_LOCAL_CTL, TI_MLC_EE_CLK); /* Pull clock low again */
1063
1064
1065 #ifdef __alpha__
1066 #undef vtophys
1067 #define vtophys(va) alpha_XXX_dmamap((vm_offset_t)va)
1068 #endif
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