if_pcnreg.h revision 331722
1/*-
2 * Copyright (c) 2000 Berkeley Software Design, Inc.
3 * Copyright (c) 1997, 1998, 1999, 2000
4 *	Bill Paul <wpaul@ee.columbia.edu>.  All rights reserved.
5 *
6 * Redistribution and use in source and binary forms, with or without
7 * modification, are permitted provided that the following conditions
8 * are met:
9 * 1. Redistributions of source code must retain the above copyright
10 *    notice, this list of conditions and the following disclaimer.
11 * 2. Redistributions in binary form must reproduce the above copyright
12 *    notice, this list of conditions and the following disclaimer in the
13 *    documentation and/or other materials provided with the distribution.
14 * 3. All advertising materials mentioning features or use of this software
15 *    must display the following acknowledgement:
16 *	This product includes software developed by Bill Paul.
17 * 4. Neither the name of the author nor the names of any co-contributors
18 *    may be used to endorse or promote products derived from this software
19 *    without specific prior written permission.
20 *
21 * THIS SOFTWARE IS PROVIDED BY Bill Paul AND CONTRIBUTORS ``AS IS'' AND
22 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
23 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
24 * ARE DISCLAIMED.  IN NO EVENT SHALL Bill Paul OR THE VOICES IN HIS HEAD
25 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
26 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
27 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
28 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
29 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
30 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
31 * THE POSSIBILITY OF SUCH DAMAGE.
32 *
33 * $FreeBSD: stable/11/sys/dev/pcn/if_pcnreg.h 331722 2018-03-29 02:50:57Z eadler $
34 */
35
36/*
37 * I/O map in 16-bit mode. To switch to 32-bit mode,
38 * you need to perform a 32-bit write to the RDP register
39 * (writing a 0 is recommended).
40 */
41#define PCN_IO16_APROM00	0x00
42#define PCN_IO16_APROM01	0x02
43#define PCN_IO16_APROM02	0x04
44#define PCN_IO16_APROM03	0x06
45#define PCN_IO16_APROM04	0x08
46#define PCN_IO16_APROM05	0x0A
47#define PCN_IO16_APROM06	0x0C
48#define PCN_IO16_APROM07	0x0E
49#define PCN_IO16_RDP		0x10
50#define PCN_IO16_RAP		0x12
51#define PCN_IO16_RESET		0x14
52#define PCN_IO16_BDP		0x16
53
54/*
55 * I/O map in 32-bit mode.
56 */
57#define PCN_IO32_APROM00	0x00
58#define PCN_IO32_APROM01	0x04
59#define PCN_IO32_APROM02	0x08
60#define PCN_IO32_APROM03	0x0C
61#define PCN_IO32_RDP		0x10
62#define PCN_IO32_RAP		0x14
63#define PCN_IO32_RESET		0x18
64#define PCN_IO32_BDP		0x1C
65
66/*
67 * CSR registers
68 */
69#define PCN_CSR_CSR		0x00
70#define PCN_CSR_IAB0		0x01
71#define PCN_CSR_IAB1		0x02
72#define PCN_CSR_IMR		0x03
73#define PCN_CSR_TFEAT		0x04
74#define PCN_CSR_EXTCTL1		0x05
75#define PCN_CSR_DTBLLEN		0x06
76#define PCN_CSR_EXTCTL2		0x07
77#define PCN_CSR_MAR0		0x08
78#define PCN_CSR_MAR1		0x09
79#define PCN_CSR_MAR2		0x0A
80#define PCN_CSR_MAR3		0x0B
81#define PCN_CSR_PAR0		0x0C
82#define PCN_CSR_PAR1		0x0D
83#define PCN_CSR_PAR2		0x0E
84#define PCN_CSR_MODE		0x0F
85#define PCN_CSR_RXADDR0		0x18
86#define PCN_CSR_RXADDR1		0x19
87#define PCN_CSR_TXADDR0		0x1E
88#define PCN_CSR_TXADDR1		0x1F
89#define PCN_CSR_TXPOLL		0x2F
90#define PCN_CSR_RXPOLL		0x31
91#define PCN_CSR_RXRINGLEN	0x4C
92#define PCN_CSR_TXRINGLEN	0x4E
93#define PCN_CSR_DMACTL		0x50
94#define PCN_CSR_BUSTIMER	0x52
95#define PCN_CSR_MEMERRTIMEO	0x64
96#define PCN_CSR_ONNOWMISC	0x74
97#define PCN_CSR_ADVFEAT		0x7A
98#define PCN_CSR_MACCFG		0x7D
99#define PCN_CSR_CHIPID0		0x58
100#define PCN_CSR_CHIPID1		0x59
101
102/*
103 * Control and status register (CSR0)
104 */
105#define PCN_CSR_INIT		0x0001
106#define PCN_CSR_START		0x0002
107#define PCN_CSR_STOP		0x0004
108#define PCN_CSR_TX		0x0008
109#define PCN_CSR_TXON		0x0010
110#define PCN_CSR_RXON		0x0020
111#define PCN_CSR_INTEN		0x0040
112#define PCN_CSR_INTR		0x0080
113#define PCN_CSR_IDONE		0x0100
114#define PCN_CSR_TINT		0x0200
115#define PCN_CSR_RINT		0x0400
116#define PCN_CSR_MERR		0x0800
117#define PCN_CSR_MISS		0x1000
118#define PCN_CSR_CERR		0x2000
119#define PCN_CSR_ERR		0x8000
120
121/*
122 * Interrupt masks and deferral control (CSR3)
123 */
124#define PCN_IMR_BSWAP		0x0004
125#define PCN_IMR_ENMBA		0x0008	/* enable modified backoff alg */
126#define PCN_IMR_DXMT2PD		0x0010
127#define PCN_IMR_LAPPEN		0x0020	/* lookahead packet processing enb */
128#define PCN_IMR_DXSUFLO		0x0040	/* disable TX stop on underflow */
129#define PCN_IMR_IDONE		0x0100
130#define PCN_IMR_TINT		0x0200
131#define PCN_IMR_RINT		0x0400
132#define PCN_IMR_MERR		0x0800
133#define PCN_IMR_MISS		0x1000
134
135/*
136 * Test and features control (CSR4)
137 */
138#define PCN_TFEAT_TXSTRTMASK	0x0004
139#define PCN_TFEAT_TXSTRT	0x0008
140#define PCN_TFEAT_RXCCOFLOWM	0x0010	/* Rx collision counter oflow */
141#define PCN_TFEAT_RXCCOFLOW	0x0020
142#define PCN_TFEAT_UINT		0x0040
143#define PCN_TFEAT_UINTREQ	0x0080
144#define PCN_TFEAT_MISSOFLOWM	0x0100
145#define PCN_TFEAT_MISSOFLOW	0x0200
146#define PCN_TFEAT_STRIP_FCS	0x0400
147#define PCN_TFEAT_PAD_TX	0x0800
148#define PCN_TFEAT_TXDPOLL	0x1000
149#define PCN_TFEAT_DMAPLUS	0x4000
150
151/*
152 * Extended control and interrupt 1 (CSR5)
153 */
154#define PCN_EXTCTL1_SPND	0x0001	/* suspend */
155#define PCN_EXTCTL1_MPMODE	0x0002	/* magic packet mode */
156#define PCN_EXTCTL1_MPENB	0x0004	/* magic packet enable */
157#define PCN_EXTCTL1_MPINTEN	0x0008	/* magic packet interrupt enable */
158#define PCN_EXTCTL1_MPINT	0x0010	/* magic packet interrupt */
159#define PCN_EXTCTL1_MPPLBA	0x0020	/* magic packet phys. logical bcast */
160#define PCN_EXTCTL1_EXDEFEN	0x0040	/* excessive deferral interrupt enb. */
161#define PCN_EXTCTL1_EXDEF	0x0080	/* excessive deferral interrupt */
162#define PCN_EXTCTL1_SINTEN	0x0400	/* system interrupt enable */
163#define PCN_EXTCTL1_SINT	0x0800	/* system interrupt */
164#define PCN_EXTCTL1_LTINTEN	0x4000	/* last TX interrupt enb */
165#define PCN_EXTCTL1_TXOKINTD	0x8000	/* TX OK interrupt disable */
166
167/*
168 * RX/TX descriptor len (CSR6)
169 */
170#define PCN_DTBLLEN_RLEN	0x0F00
171#define PCN_DTBLLEN_TLEN	0xF000
172
173/*
174 * Extended control and interrupt 2 (CSR7)
175 */
176#define PCN_EXTCTL2_MIIPDTINTE	0x0001
177#define PCN_EXTCTL2_MIIPDTINT	0x0002
178#define PCN_EXTCTL2_MCCIINTE	0x0004
179#define PCN_EXTCTL2_MCCIINT	0x0008
180#define PCN_EXTCTL2_MCCINTE	0x0010
181#define PCN_EXTCTL2_MCCINT	0x0020
182#define PCN_EXTCTL2_MAPINTE	0x0040
183#define PCN_EXTCTL2_MAPINT	0x0080
184#define PCN_EXTCTL2_MREINTE	0x0100
185#define PCN_EXTCTL2_MREINT	0x0200
186#define PCN_EXTCTL2_STINTE	0x0400
187#define PCN_EXTCTL2_STINT	0x0800
188#define PCN_EXTCTL2_RXDPOLL	0x1000
189#define PCN_EXTCTL2_RDMD	0x2000
190#define PCN_EXTCTL2_RXFRTG	0x4000
191#define PCN_EXTCTL2_FASTSPNDE	0x8000
192
193
194/*
195 * Mode (CSR15)
196 */
197#define PCN_MODE_RXD		0x0001	/* RX disable */
198#define PCN_MODE_TXD		0x0002	/* TX disable */
199#define PCN_MODE_LOOP		0x0004	/* loopback enable */
200#define PCN_MODE_TXCRCD		0x0008
201#define PCN_MODE_FORCECOLL	0x0010
202#define PCN_MODE_RETRYD		0x0020
203#define PCN_MODE_INTLOOP	0x0040
204#define PCN_MODE_PORTSEL	0x0180
205#define PCN_MODE_RXVPAD		0x2000
206#define PCN_MODE_RXNOBROAD	0x4000
207#define PCN_MODE_PROMISC	0x8000
208
209/* Settings for PCN_MODE_PORTSEL when ASEL (BCR2[1]) is 0 */
210#define PCN_PORT_AUI		0x0000
211#define PCN_PORT_10BASET	0x0080
212#define PCN_PORT_GPSI		0x0100
213#define PCN_PORT_MII		0x0180
214
215/*
216 * Chip ID values.
217 */
218/* CSR88-89: Chip ID masks */
219#define AMD_MASK  0x003
220#define PART_MASK 0xffff
221#define Am79C971  0x2623
222#define Am79C972  0x2624
223#define Am79C973  0x2625
224#define Am79C978  0x2626
225#define Am79C975  0x2627
226#define Am79C976  0x2628
227
228/*
229 * Advanced feature control (CSR122)
230 */
231#define PCN_AFC_RXALIGN		0x0001
232
233/*
234 * BCR (bus control) registers
235 */
236#define	PCN_BCR_MMRA		0x00	/* Master Mode Read Active */
237#define	PCN_BCR_MMW		0x01	/* Master Mode Write Active */
238#define PCN_BCR_MISCCFG		0x02
239#define PCN_BCR_LED0		0x04
240#define PCN_BCR_LED1		0x05
241#define PCN_BCR_LED2		0x06
242#define PCN_BCR_LED3		0x07
243#define PCN_BCR_DUPLEX		0x09
244#define PCN_BCR_BUSCTL		0x12
245#define PCN_BCR_EECTL		0x13
246#define PCN_BCR_SSTYLE		0x14
247#define PCN_BCR_PCILAT		0x16
248#define PCN_BCR_PCISUBVENID	0x17
249#define PCN_BCR_PCISUBSYSID	0x18
250#define PCN_BCR_SRAMSIZE	0x19
251#define PCN_BCR_SRAMBOUND	0x1A
252#define PCN_BCR_SRAMCTL		0x1B
253#define PCN_BCR_MIICTL		0x20
254#define PCN_BCR_MIIADDR		0x21
255#define PCN_BCR_MIIDATA		0x22
256#define PCN_BCR_PCIVENID	0x23
257#define PCN_BCR_PCIPCAP		0x24
258#define PCN_BCR_DATA0		0x25
259#define PCN_BCR_DATA1		0x26
260#define PCN_BCR_DATA2		0x27
261#define PCN_BCR_DATA3		0x28
262#define PCN_BCR_DATA4		0x29
263#define PCN_BCR_DATA5		0x2A
264#define PCN_BCR_DATA6		0x2B
265#define PCN_BCR_DATA7		0x2C
266#define PCN_BCR_ONNOWPAT0	0x2D
267#define PCN_BCR_ONNOWPAT1	0x2E
268#define PCN_BCR_ONNOWPAT2	0x2F
269#define PCN_BCR_PHYSEL		0x31
270
271/*
272 * Miscellaneous Configuration (BCR2)
273 */
274#define PCN_MISC_TMAULOOP	1<<14	/* T-MAU Loopback packet enable. */
275#define PCN_MISC_LEDPE		1<<12	/* LED Program Enable */
276#define PCN_MISC_APROMWE	1<<8	/* Address PROM Write Enable */
277#define PCN_MISC_INTLEVEL	1<<7	/* Interrupt level */
278#define PCN_MISC_EADISEL	1<<3	/* EADI Select */
279#define PCN_MISC_AWAKE		1<<2	/* Power saving mode select */
280#define PCN_MISC_ASEL		1<<1	/* Auto Select */
281#define PCN_MISC_XMAUSEL	1<<0	/* Reserved. */
282
283/*
284 * Full duplex control (BCR9)
285 */
286#define PCN_DUPLEX_FDEN		0x0001	/* Full-duplex enable */
287#define	PCN_DUPLEX_AUI		0x0002	/* AUI full-duplex */
288#define PCN_DUPLEX_FDRPAD	0x0004	/* Full-duplex runt pkt accept dis. */
289
290/*
291 * Burst and bus control register (BCR18)
292 */
293#define PCN_BUSCTL_BWRITE	0x0020
294#define PCN_BUSCTL_BREAD	0x0040
295#define PCN_BUSCTL_DWIO		0x0080
296#define PCN_BUSCTL_EXTREQ	0x0100
297#define PCN_BUSCTL_MEMCMD	0x0200
298#define PCN_BUSCTL_NOUFLOW	0x0800
299#define PCN_BUSCTL_ROMTMG	0xF000
300
301/*
302 * EEPROM control (BCR19)
303 */
304#define PCN_EECTL_EDATA		0x0001
305#define PCN_EECTL_ECLK		0x0002
306#define PCN_EECTL_EECS		0x0004
307#define PCN_EECTL_EEN		0x0100
308#define PCN_EECTL_EEDET		0x2000
309#define PCN_EECTL_PREAD		0x4000
310#define PCN_EECTL_PVALID	0x8000
311
312/*
313 * Software style (BCR20)
314 */
315#define PCN_SSTYLE_APERREN	0x0400	/* advanced parity error checking */
316#define PCN_SSTYLE_SSIZE32	0x0100
317#define PCN_SSTYLE_SWSTYLE	0x00FF
318
319#define PCN_SWSTYLE_LANCE		0x0000
320#define PCN_SWSTYLE_PCNETPCI		0x0102
321#define PCN_SWSTYLE_PCNETPCI_BURST	0x0103
322
323/*
324 * MII control and status (BCR32)
325 */
326#define PCN_MIICTL_MIILP	0x0002	/* MII internal loopback */
327#define PCN_MIICTL_XPHYSP	0x0008	/* external PHY speed */
328#define PCN_MIICTL_XPHYFD	0x0010	/* external PHY full duplex */
329#define PCN_MIICTL_XPHYANE	0x0020	/* external phy auto-neg enable */
330#define PCN_MIICTL_XPHYRST	0x0040	/* external PHY reset */
331#define PCN_MIICTL_DANAS	0x0080	/* disable auto-neg auto-setup */
332#define PCN_MIICTL_APDW		0x0700	/* auto-poll dwell time */
333#define PCN_MIICTL_APEP		0x0100	/* auto-poll external PHY */
334#define PCN_MIICTL_FMDC		0x3000	/* data clock speed */
335#define PCN_MIICTL_MIIPD	0x4000	/* PHY detect */
336#define PCN_MIICTL_ANTST	0x8000	/* Manufacturing test */
337
338/*
339 * MII address register (BCR33)
340 */
341#define PCN_MIIADDR_REGAD	0x001F
342#define PCN_MIIADDR_PHYAD	0x03E0
343
344/* addresses of internal PHYs */
345#define PCN_PHYAD_100BTX	30
346#define PCN_PHYAD_10BT		31
347
348/*
349 * MII data register (BCR34)
350 */
351#define PCN_MIIDATA_MIIMD	0xFFFF
352
353/*
354 * PHY selection (BCR49) (HomePNA NIC only)
355 */
356#define PCN_PHYSEL_PHYSEL	0x0003
357#define PCN_PHYSEL_DEFAULT	0x0300
358#define PCN_PHYSEL_PCNET	0x8000
359
360#define PCN_PHY_10BT		0x0000
361#define PCN_PHY_HOMEPNA		0x0001
362#define PCN_PHY_EXTERNAL	0x0002
363
364struct pcn_rx_desc {
365	u_int16_t		pcn_rxlen;
366	u_int16_t		pcn_rsvd0;
367	u_int16_t		pcn_bufsz;
368	u_int16_t		pcn_rxstat;
369	u_int32_t		pcn_rbaddr;
370	u_int32_t		pcn_uspace;
371};
372
373#define PCN_RXSTAT_BPE		0x0080	/* bus parity error */
374#define PCN_RXSTAT_ENP		0x0100	/* end of packet */
375#define PCN_RXSTAT_STP		0x0200	/* start of packet */
376#define PCN_RXSTAT_BUFF		0x0400	/* buffer error */
377#define PCN_RXSTAT_CRC		0x0800	/* CRC error */
378#define PCN_RXSTAT_OFLOW	0x1000	/* rx overrun */
379#define PCN_RXSTAT_FRAM		0x2000	/* framing error */
380#define PCN_RXSTAT_ERR		0x4000	/* error summary */
381#define PCN_RXSTAT_OWN		0x8000
382
383#define PCN_RXLEN_MBO		0xF000
384#define PCN_RXLEN_BUFSZ		0x0FFF
385
386#define PCN_OWN_RXDESC(x)	(((x)->pcn_rxstat & PCN_RXSTAT_OWN) == 0)
387
388struct pcn_tx_desc {
389	u_int32_t		pcn_txstat;
390	u_int32_t		pcn_txctl;
391	u_int32_t		pcn_tbaddr;
392	u_int32_t		pcn_uspace;
393};
394
395#define PCN_TXSTAT_TRC		0x0000000F	/* transmit retries */
396#define PCN_TXSTAT_RTRY		0x04000000	/* retry */
397#define PCN_TXSTAT_LCAR		0x08000000	/* lost carrier */
398#define PCN_TXSTAT_LCOL		0x10000000	/* late collision */
399#define PCN_TXSTAT_EXDEF	0x20000000	/* excessive deferrals */
400#define PCN_TXSTAT_UFLOW	0x40000000	/* transmit underrun */
401#define PCN_TXSTAT_BUFF		0x80000000	/* buffer error */
402
403#define PCN_TXCTL_OWN		0x80000000
404#define PCN_TXCTL_ERR		0x40000000	/* error summary */
405#define PCN_TXCTL_ADD_FCS	0x20000000	/* add FCS to pkt */
406#define PCN_TXCTL_MORE_LTINT	0x10000000
407#define PCN_TXCTL_ONE		0x08000000
408#define PCN_TXCTL_DEF		0x04000000
409#define PCN_TXCTL_STP		0x02000000
410#define PCN_TXCTL_ENP		0x01000000
411#define PCN_TXCTL_BPE		0x00800000
412#define PCN_TXCTL_MBO		0x0000F000
413#define PCN_TXCTL_BUFSZ		0x00000FFF
414
415#define PCN_OWN_TXDESC(x)	(((x)->pcn_txctl & PCN_TXCTL_OWN) == 0)
416
417#define PCN_RX_LIST_CNT		64
418#define PCN_TX_LIST_CNT		256
419
420struct pcn_list_data {
421	struct pcn_rx_desc	pcn_rx_list[PCN_RX_LIST_CNT];
422	struct pcn_tx_desc	pcn_tx_list[PCN_TX_LIST_CNT];
423};
424
425struct pcn_ring_data {
426	struct mbuf		*pcn_rx_chain[PCN_RX_LIST_CNT];
427	struct mbuf		*pcn_tx_chain[PCN_TX_LIST_CNT];
428	int			pcn_rx_prod;
429	int			pcn_tx_prod;
430	int			pcn_tx_cons;
431	int			pcn_tx_cnt;
432};
433
434/*
435 * AMD PCI vendor ID.
436 */
437#define PCN_VENDORID		0x1022
438
439/*
440 * AMD PCnet/PCI device IDs
441 */
442#define PCN_DEVICEID_PCNET	0x2000
443#define PCN_DEVICEID_HOME	0x2001
444
445struct pcn_type {
446	u_int16_t		pcn_vid;
447	u_int16_t		pcn_did;
448	const char		*pcn_name;
449};
450
451struct pcn_softc {
452	struct ifnet		*pcn_ifp;
453	bus_space_handle_t	pcn_bhandle;
454	bus_space_tag_t		pcn_btag;
455	struct resource		*pcn_res;
456	struct resource		*pcn_irq;
457	void			*pcn_intrhand;
458	device_t		pcn_miibus;
459	u_int8_t		pcn_link;
460	int8_t			pcn_extphyaddr;
461	int8_t			pcn_inst_10bt;
462	int			pcn_if_flags;
463	int			pcn_type;
464	struct pcn_list_data	*pcn_ldata;
465	struct pcn_ring_data	pcn_cdata;
466	struct callout		pcn_stat_callout;
467	struct mtx		pcn_mtx;
468	int			pcn_timer;
469};
470
471#define	PCN_LOCK(_sc)		mtx_lock(&(_sc)->pcn_mtx)
472#define	PCN_UNLOCK(_sc)		mtx_unlock(&(_sc)->pcn_mtx)
473#define	PCN_LOCK_ASSERT(_sc)	mtx_assert(&(_sc)->pcn_mtx, MA_OWNED)
474
475/*
476 * register space access macros
477 */
478#define CSR_WRITE_4(sc, reg, val)	\
479	bus_space_write_4(sc->pcn_btag, sc->pcn_bhandle, reg, val)
480
481#define CSR_READ_4(sc, reg)		\
482	bus_space_read_4(sc->pcn_btag, sc->pcn_bhandle, reg)
483
484#define CSR_WRITE_2(sc, reg, val)	\
485	bus_space_write_2(sc->pcn_btag, sc->pcn_bhandle, reg, val)
486
487#define CSR_READ_2(sc, reg)		\
488	bus_space_read_2(sc->pcn_btag, sc->pcn_bhandle, reg)
489
490#define PCN_TIMEOUT		1000
491#define ETHER_ALIGN		2
492#define PCN_RXLEN		1536
493#define PCN_MIN_FRAMELEN	60
494#define PCN_INC(x, y)		(x) = (x + 1) % y
495/*
496 * PCI low memory base and low I/O base register, and
497 * other PCI registers.
498 */
499
500#define PCN_PCI_VENDOR_ID	0x00
501#define PCN_PCI_DEVICE_ID	0x02
502#define PCN_PCI_COMMAND		0x04
503#define PCN_PCI_STATUS		0x06
504#define PCN_PCI_REVID		0x08
505#define PCN_PCI_CLASSCODE	0x09
506#define PCN_PCI_CACHELEN	0x0C
507#define PCN_PCI_LATENCY_TIMER	0x0D
508#define PCN_PCI_HEADER_TYPE	0x0E
509#define PCN_PCI_LOIO		0x10
510#define PCN_PCI_LOMEM		0x14
511#define PCN_PCI_BIOSROM		0x30
512#define PCN_PCI_INTLINE		0x3C
513#define PCN_PCI_INTPIN		0x3D
514#define PCN_PCI_MINGNT		0x3E
515#define PCN_PCI_MINLAT		0x3F
516#define PCN_PCI_RESETOPT	0x48
517#define PCN_PCI_EEPROM_DATA	0x4C
518
519/* power management registers */
520#define PCN_PCI_CAPID		0x50 /* 8 bits */
521#define PCN_PCI_NEXTPTR		0x51 /* 8 bits */
522#define PCN_PCI_PWRMGMTCAP	0x52 /* 16 bits */
523#define PCN_PCI_PWRMGMTCTRL	0x54 /* 16 bits */
524
525#define PCN_PSTATE_MASK		0x0003
526#define PCN_PSTATE_D0		0x0000
527#define PCN_PSTATE_D1		0x0001
528#define PCN_PSTATE_D2		0x0002
529#define PCN_PSTATE_D3		0x0003
530#define PCN_PME_EN		0x0010
531#define PCN_PME_STATUS		0x8000
532