1/*	$OpenBSD: if_sisreg.h,v 1.35 2016/01/08 11:23:30 mpi Exp $ */
2/*
3 * Copyright (c) 1997, 1998, 1999
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: src/sys/pci/if_sisreg.h,v 1.3 2000/08/22 23:26:51 wpaul Exp $
34 */
35
36/*
37 * Register definitions for the SiS 900 and SiS 7016 chipsets. The
38 * 7016 is actually an older chip and some of its registers differ
39 * from the 900, however the core operational registers are the same:
40 * the differences lie in the OnNow/Wake on LAN stuff which we don't
41 * use anyway. The 7016 needs an external MII compliant PHY while the
42 * SiS 900 has one built in. All registers are 32-bits wide.
43 */
44
45/* Registers common to SiS 900 and SiS 7016 */
46#define SIS_CSR			0x00
47#define SIS_CFG			0x04
48#define SIS_EECTL		0x08
49#define SIS_PCICTL		0x0C
50#define SIS_ISR			0x10
51#define SIS_IMR			0x14
52#define SIS_IER			0x18
53#define SIS_PHYCTL		0x1C
54#define SIS_TX_LISTPTR		0x20
55#define SIS_TX_CFG		0x24
56#define SIS_RX_LISTPTR		0x30
57#define SIS_RX_CFG		0x34
58#define SIS_FLOWCTL		0x38
59#define SIS_RXFILT_CTL		0x48
60#define SIS_RXFILT_DATA		0x4C
61#define SIS_PWRMAN_CTL		0xB0
62#define SIS_PWERMAN_WKUP_EVENT	0xB4
63#define SIS_WKUP_FRAME_CRC	0xBC
64#define SIS_WKUP_FRAME_MASK0	0xC0
65#define SIS_WKUP_FRAME_MASKXX	0xEC
66
67/* SiS 7016 specific registers */
68#define SIS_SILICON_REV		0x5C
69#define SIS_MIB_CTL0		0x60
70#define SIS_MIB_CTL1		0x64
71#define SIS_MIB_CTL2		0x68
72#define SIS_MIB_CTL3		0x6C
73#define SIS_MIB			0x80
74#define SIS_LINKSTS		0xA0
75#define SIS_TIMEUNIT		0xA4
76#define SIS_GPIO		0xB8
77
78/* NS DP83815/6 registers */
79#define NS_IHR			0x1C
80#define NS_CLKRUN		0x3C
81#define NS_SRR			0x58
82#define NS_BMCR			0x80
83#define NS_BMSR			0x84
84#define NS_PHYIDR1		0x88
85#define NS_PHYIDR2		0x8C
86#define NS_ANAR			0x90
87#define NS_ANLPAR		0x94
88#define NS_ANER			0x98
89#define NS_ANNPTR		0x9C
90
91#define NS_PHY_CR		0xE4
92#define NS_PHY_10BTSCR		0xE8
93#define NS_PHY_PAGE		0xCC
94#define NS_PHY_EXTCFG		0xF0
95#define NS_PHY_DSPCFG		0xF4
96#define NS_PHY_SDCFG		0xF8
97#define NS_PHY_TDATA		0xFC
98
99#define NS_CLKRUN_PMESTS	0x00008000
100#define NS_CLKRUN_PMEENB	0x00000100
101#define NS_CLNRUN_CLKRUN_ENB	0x00000001
102
103/* NS silicon revisions */
104#define NS_SRR_15C		0x302
105#define NS_SRR_15D		0x403
106#define NS_SRR_16A		0x505
107
108#define SIS_CSR_TX_ENABLE	0x00000001
109#define SIS_CSR_TX_DISABLE	0x00000002
110#define SIS_CSR_RX_ENABLE	0x00000004
111#define SIS_CSR_RX_DISABLE	0x00000008
112#define SIS_CSR_TX_RESET	0x00000010
113#define SIS_CSR_RX_RESET	0x00000020
114#define SIS_CSR_SOFTINTR	0x00000080
115#define SIS_CSR_RESET		0x00000100
116#define SIS_CSR_RELOAD		0x00000400
117
118#define SIS_CFG_BIGENDIAN	0x00000001
119#define SIS_CFG_PERR_DETECT	0x00000008
120#define SIS_CFG_DEFER_DISABLE	0x00000010
121#define SIS_CFG_OUTOFWIN_TIMER	0x00000020
122#define SIS_CFG_SINGLE_BACKOFF	0x00000040
123#define SIS_CFG_PCIREQ_ALG	0x00000080
124#define SIS_CFG_FAIR_BACKOFF	0x00000200 /* 635 & 900B Specific */
125#define SIS_CFG_RND_CNT		0x00000400 /* 635 & 900B Specific */
126#define SIS_CFG_EDB_MASTER_EN	0x00002000
127
128#define SIS_EECTL_DIN		0x00000001
129#define SIS_EECTL_DOUT		0x00000002
130#define SIS_EECTL_CLK		0x00000004
131#define SIS_EECTL_CSEL		0x00000008
132
133#define SIS96x_EECTL_GNT	0x00000100
134#define SIS96x_EECTL_DONE	0x00000200
135#define SIS96x_EECTL_REQ	0x00000400
136
137#define	SIS_MII_CLK		0x00000040
138#define	SIS_MII_DIR		0x00000020
139#define	SIS_MII_DATA		0x00000010
140
141#define SIS_EECMD_WRITE		0x140
142#define SIS_EECMD_READ		0x180
143#define SIS_EECMD_ERASE		0x1c0
144
145#define SIS_EE_NODEADDR		0x8
146#define NS_EE_NODEADDR		0x6
147
148#define SIS_PCICTL_SRAMADDR	0x0000001F
149#define SIS_PCICTL_RAMTSTENB	0x00000020
150#define SIS_PCICTL_TXTSTENB	0x00000040
151#define SIS_PCICTL_RXTSTENB	0x00000080
152#define SIS_PCICTL_BMTSTENB	0x00000200
153#define SIS_PCICTL_RAMADDR	0x001F0000
154#define SIS_PCICTL_ROMTIME	0x0F000000
155#define SIS_PCICTL_DISCTEST	0x40000000
156
157#define SIS_ISR_RX_OK		0x00000001
158#define SIS_ISR_RX_DESC_OK	0x00000002
159#define SIS_ISR_RX_ERR		0x00000004
160#define SIS_ISR_RX_EARLY	0x00000008
161#define SIS_ISR_RX_IDLE		0x00000010
162#define SIS_ISR_RX_OFLOW	0x00000020
163#define SIS_ISR_TX_OK		0x00000040
164#define SIS_ISR_TX_DESC_OK	0x00000080
165#define SIS_ISR_TX_ERR		0x00000100
166#define SIS_ISR_TX_IDLE		0x00000200
167#define SIS_ISR_TX_UFLOW	0x00000400
168#define SIS_ISR_SOFTINTR	0x00000800
169#define SIS_ISR_HIBITS		0x00008000
170#define SIS_ISR_RX_FIFO_OFLOW	0x00010000
171#define SIS_ISR_TGT_ABRT	0x00100000
172#define SIS_ISR_BM_ABRT		0x00200000
173#define SIS_ISR_SYSERR		0x00400000
174#define SIS_ISR_PARITY_ERR	0x00800000
175#define SIS_ISR_RX_RESET_DONE	0x01000000
176#define SIS_ISR_TX_RESET_DONE	0x02000000
177#define SIS_ISR_TX_PAUSE_START	0x04000000
178#define SIS_ISR_TX_PAUSE_DONE	0x08000000
179#define SIS_ISR_WAKE_EVENT	0x10000000
180
181#define SIS_IMR_RX_OK		0x00000001
182#define SIS_IMR_RX_DESC_OK	0x00000002
183#define SIS_IMR_RX_ERR		0x00000004
184#define SIS_IMR_RX_EARLY	0x00000008
185#define SIS_IMR_RX_IDLE		0x00000010
186#define SIS_IMR_RX_OFLOW	0x00000020
187#define SIS_IMR_TX_OK		0x00000040
188#define SIS_IMR_TX_DESC_OK	0x00000080
189#define SIS_IMR_TX_ERR		0x00000100
190#define SIS_IMR_TX_IDLE		0x00000200
191#define SIS_IMR_TX_UFLOW	0x00000400
192#define SIS_IMR_SOFTINTR	0x00000800
193#define SIS_IMR_HIBITS		0x00008000
194#define SIS_IMR_RX_FIFO_OFLOW	0x00010000
195#define SIS_IMR_TGT_ABRT	0x00100000
196#define SIS_IMR_BM_ABRT		0x00200000
197#define SIS_IMR_SYSERR		0x00400000
198#define SIS_IMR_PARITY_ERR	0x00800000
199#define SIS_IMR_RX_RESET_DONE	0x01000000
200#define SIS_IMR_TX_RESET_DONE	0x02000000
201#define SIS_IMR_TX_PAUSE_START	0x04000000
202#define SIS_IMR_TX_PAUSE_DONE	0x08000000
203#define SIS_IMR_WAKE_EVENT	0x10000000
204
205#define SIS_INTRS	\
206	(SIS_IMR_RX_OFLOW|SIS_IMR_TX_UFLOW|SIS_IMR_TX_OK|\
207	 SIS_IMR_TX_IDLE|SIS_IMR_RX_OK|SIS_IMR_RX_ERR|\
208	 SIS_IMR_RX_IDLE|\
209	 SIS_IMR_SYSERR)
210
211/* Interrupt Holdoff Register */
212#define NS_IHR_HOLDCTL 0x00000100
213
214/*
215 * Interrupt holdoff value for NS DP8316. We can have the chip
216 * delay interrupt delivery for a certain period. Units are in
217 * 100us - this sets the delay to 1ms holdoff.
218 */
219#define NS_IHR_DELAY 10
220
221#define NS_IHR_VALUE (NS_IHR_HOLDCTL|NS_IHR_DELAY)
222
223#define SIS_IER_INTRENB		0x00000001
224
225#define SIS_PHYCTL_ACCESS	0x00000010
226#define SIS_PHYCTL_OP		0x00000020
227#define SIS_PHYCTL_REGADDR	0x000007C0
228#define SIS_PHYCTL_PHYADDR	0x0000F800
229#define SIS_PHYCTL_PHYDATA	0xFFFF0000
230
231#define SIS_PHYOP_READ		0x00000020
232#define SIS_PHYOP_WRITE		0x00000000
233
234#define SIS_TXCFG_DRAIN_THRESH	0x0000003F /* 32-byte units */
235#define SIS_TXCFG_FILL_THRESH	0x00003F00 /* 32-byte units */
236#define SIS_TXCFG_MPII03D	0x00040000 /* "Must be 1" */
237#define SIS_TXCFG_DMABURST	0x00700000
238#define SIS_TXCFG_AUTOPAD	0x10000000
239#define SIS_TXCFG_LOOPBK	0x20000000
240#define SIS_TXCFG_IGN_HBEAT	0x40000000
241#define SIS_TXCFG_IGN_CARR	0x80000000
242
243#define SIS_TXCFG_DRAIN(x)	(((x) >> 5) & SIS_TXCFG_DRAIN_THRESH)
244#define SIS_TXCFG_FILL(x)	((((x) >> 5) << 8) & SIS_TXCFG_FILL_THRESH)
245
246#define SIS_TXDMA_512BYTES	0x00000000
247#define SIS_TXDMA_4BYTES	0x00100000
248#define SIS_TXDMA_8BYTES	0x00200000
249#define SIS_TXDMA_16BYTES	0x00300000
250#define SIS_TXDMA_32BYTES	0x00400000
251#define SIS_TXDMA_64BYTES	0x00500000
252#define SIS_TXDMA_128BYTES	0x00600000
253#define SIS_TXDMA_256BYTES	0x00700000
254
255#define SIS_TXCFG_100	\
256	(SIS_TXDMA_64BYTES|SIS_TXCFG_AUTOPAD|\
257	 SIS_TXCFG_FILL(ETHER_MIN_LEN)|SIS_TXCFG_DRAIN(ETHER_MAX_DIX_LEN))
258
259#define SIS_TXCFG_10	\
260	(SIS_TXDMA_32BYTES|SIS_TXCFG_AUTOPAD|\
261	 SIS_TXCFG_FILL(ETHER_MIN_LEN)|SIS_TXCFG_DRAIN(ETHER_MAX_DIX_LEN))
262
263#define SIS_RXCFG_DRAIN_THRESH	0x0000003E /* 8-byte units */
264#define SIS_RXCFG_DMABURST	0x00700000
265#define SIS_RXCFG_RX_JABBER	0x08000000
266#define SIS_RXCFG_RX_TXPKTS	0x10000000
267#define SIS_RXCFG_RX_RUNTS	0x40000000
268#define SIS_RXCFG_RX_GIANTS	0x80000000
269
270#define SIS_RXCFG_DRAIN(x)	((((x) >> 3) << 1) & SIS_RXCFG_DRAIN_THRESH)
271
272#define SIS_RXDMA_512BYTES	0x00000000
273#define SIS_RXDMA_4BYTES	0x00100000
274#define SIS_RXDMA_8BYTES	0x00200000
275#define SIS_RXDMA_16BYTES	0x00300000
276#define SIS_RXDMA_32BYTES	0x00400000
277#define SIS_RXDMA_64BYTES	0x00500000
278#define SIS_RXDMA_128BYTES	0x00600000
279#define SIS_RXDMA_256BYTES	0x00700000
280
281#define SIS_RXCFG256 \
282	(SIS_RXCFG_DRAIN(64)|SIS_RXDMA_256BYTES)
283#define SIS_RXCFG64 \
284	(SIS_RXCFG_DRAIN(64)|SIS_RXDMA_64BYTES)
285
286#define SIS_RXFILTCTL_ADDR	0x000F0000
287#define NS_RXFILTCTL_MCHASH	0x00200000
288#define NS_RXFILTCTL_ARP	0x00400000
289#define NS_RXFILTCTL_PERFECT	0x08000000
290#define SIS_RXFILTCTL_ALLPHYS	0x10000000
291#define SIS_RXFILTCTL_ALLMULTI	0x20000000
292#define SIS_RXFILTCTL_BROAD	0x40000000
293#define SIS_RXFILTCTL_ENABLE	0x80000000
294
295#define SIS_FILTADDR_PAR0	0x00000000
296#define SIS_FILTADDR_PAR1	0x00010000
297#define SIS_FILTADDR_PAR2	0x00020000
298#define SIS_FILTADDR_MAR0	0x00040000
299#define SIS_FILTADDR_MAR1	0x00050000
300#define SIS_FILTADDR_MAR2	0x00060000
301#define SIS_FILTADDR_MAR3	0x00070000
302#define SIS_FILTADDR_MAR4	0x00080000
303#define SIS_FILTADDR_MAR5	0x00090000
304#define SIS_FILTADDR_MAR6	0x000A0000
305#define SIS_FILTADDR_MAR7	0x000B0000
306
307#define NS_FILTADDR_PAR0	0x00000000
308#define NS_FILTADDR_PAR1	0x00000002
309#define NS_FILTADDR_PAR2	0x00000004
310
311#define NS_FILTADDR_FMEM_LO	0x00000200
312#define NS_FILTADDR_FMEM_HI	0x000003FE
313
314/*
315 * DMA descriptor structures. The first part of the descriptor
316 * is the hardware descriptor format, which is just three longwords.
317 * After this, we include some additional structure members for
318 * use by the driver. Note that for this structure will be a different
319 * size on the alpha, but that's okay as long as it's a multiple of 4
320 * bytes in size.
321 */
322struct sis_desc {
323	/* SiS hardware descriptor section */
324	u_int32_t		sis_next;
325	u_int32_t		sis_cmdsts;
326#define sis_rxstat		sis_cmdsts
327#define sis_txstat		sis_cmdsts
328#define sis_ctl			sis_cmdsts
329	u_int32_t		sis_ptr;
330	/* Driver software section */
331	struct mbuf		*sis_mbuf;
332	struct sis_desc		*sis_nextdesc;
333	bus_dmamap_t		map;
334};
335
336#define SIS_CMDSTS_BUFLEN	0x00000FFF
337#define SIS_CMDSTS_PKT_OK	0x08000000
338#define SIS_CMDSTS_CRC		0x10000000
339#define SIS_CMDSTS_INTR		0x20000000
340#define SIS_CMDSTS_MORE		0x40000000
341#define SIS_CMDSTS_OWN		0x80000000
342
343#define SIS_LASTDESC(x)		(!(letoh32((x)->sis_ctl) & SIS_CMDSTS_MORE)))
344#define SIS_OWNDESC(x)		(letoh32((x)->sis_ctl) & SIS_CMDSTS_OWN)
345#define SIS_INC(x, y)		(x) = ((x) == ((y)-1)) ? 0 : (x)+1
346#define SIS_RXBYTES(x)		(letoh32((x)->sis_ctl) & SIS_CMDSTS_BUFLEN)
347
348#define SIS_RXSTAT_COLL		0x00010000
349#define SIS_RXSTAT_LOOPBK	0x00020000
350#define SIS_RXSTAT_ALIGNERR	0x00040000
351#define SIS_RXSTAT_CRCERR	0x00080000
352#define SIS_RXSTAT_SYMBOLERR	0x00100000
353#define SIS_RXSTAT_RUNT		0x00200000
354#define SIS_RXSTAT_GIANT	0x00400000
355#define SIS_RXSTAT_DSTCLASS	0x01800000
356#define SIS_RXSTAT_OVERRUN	0x02000000
357#define SIS_RXSTAT_RX_ABORT	0x04000000
358
359#define SIS_RXSTAT_ERROR(x)						\
360	((x) & (SIS_RXSTAT_RX_ABORT | SIS_RXSTAT_OVERRUN |		\
361	SIS_RXSTAT_GIANT | SIS_RXSTAT_SYMBOLERR | SIS_RXSTAT_RUNT |	\
362	SIS_RXSTAT_CRCERR | SIS_RXSTAT_ALIGNERR))
363
364#define SIS_DSTCLASS_REJECT	0x00000000
365#define SIS_DSTCLASS_UNICAST	0x00800000
366#define SIS_DSTCLASS_MULTICAST	0x01000000
367#define SIS_DSTCLASS_BROADCAST	0x02000000
368
369#define SIS_TXSTAT_COLLCNT	0x000F0000
370#define SIS_TXSTAT_EXCESSCOLLS	0x00100000
371#define SIS_TXSTAT_OUTOFWINCOLL	0x00200000
372#define SIS_TXSTAT_EXCESS_DEFER	0x00400000
373#define SIS_TXSTAT_DEFERED	0x00800000
374#define SIS_TXSTAT_CARR_LOST	0x01000000
375#define SIS_TXSTAT_UNDERRUN	0x02000000
376#define SIS_TXSTAT_TX_ABORT	0x04000000
377
378#define SIS_MAXTXSEGS		16
379#define SIS_RX_LIST_CNT		64
380#define SIS_TX_LIST_CNT		128
381
382struct sis_list_data {
383	struct sis_desc		sis_rx_list[SIS_RX_LIST_CNT];
384	struct sis_desc		sis_tx_list[SIS_TX_LIST_CNT];
385};
386
387struct sis_ring_data {
388	struct if_rxring	sis_rx_ring;
389	int			sis_rx_prod;
390	int			sis_rx_cons;
391	int			sis_tx_prod;
392	int			sis_tx_cons;
393	int			sis_tx_cnt;
394};
395
396
397/*
398 * SiS PCI vendor ID.
399 */
400#define SIS_VENDORID		0x1039
401
402/*
403 * SiS PCI device IDs
404 */
405#define SIS_DEVICEID_900	0x0900
406#define SIS_DEVICEID_7016	0x7016
407
408
409/*
410 * SiS 900 PCI revision codes.
411 */
412#define SIS_REV_900B		0x0003
413#define SIS_REV_630A		0x0080
414#define SIS_REV_630E		0x0081
415#define SIS_REV_630S		0x0082
416#define SIS_REV_630EA1		0x0083
417#define SIS_REV_630ET		0x0084
418#define SIS_REV_635		0x0090
419#define SIS_REV_96x		0x0091
420
421struct sis_type {
422	u_int16_t		sis_vid;
423	u_int16_t		sis_did;
424	char			*sis_name;
425};
426
427struct sis_mii_frame {
428	u_int8_t		mii_stdelim;
429	u_int8_t		mii_opcode;
430	u_int8_t		mii_phyaddr;
431	u_int8_t		mii_regaddr;
432	u_int8_t		mii_turnaround;
433	u_int16_t		mii_data;
434};
435
436/*
437 * MII constants
438 */
439#define	SIS_MII_STARTDELIM	0x01
440#define	SIS_MII_READOP		0x02
441#define	SIS_MII_WRITEOP		0x01
442#define	SIS_MII_TURNAROUND	0x02
443
444#define SIS_TYPE_900	1
445#define SIS_TYPE_7016	2
446#define SIS_TYPE_83815	3
447
448struct sis_softc {
449	struct device		sc_dev;		/* generic device structure */
450	void			*sc_ih;		/* interrupt handler cookie */
451	struct arpcom		arpcom;		/* interface info */
452	mii_data_t		sc_mii;
453	bus_space_handle_t	sis_bhandle;
454	bus_space_tag_t		sis_btag;
455	u_int8_t		sis_type;
456	u_int8_t		sis_rev;
457	u_int8_t		sis_link;
458	u_int			sis_srr;
459	struct sis_list_data	*sis_ldata;
460	struct sis_ring_data	sis_cdata;
461	struct timeout		sis_timeout;
462	bus_dma_tag_t		sc_dmat;
463	bus_dmamap_t		sc_listmap;
464	bus_dma_segment_t	sc_listseg[1];
465	int			sc_listnseg;
466	caddr_t			sc_listkva;
467	bus_dmamap_t		sc_tx_sparemap;
468	int			sis_stopped;
469};
470
471/*
472 * register space access macros
473 */
474#define CSR_WRITE_4(sc, reg, val)	\
475	bus_space_write_4(sc->sis_btag, sc->sis_bhandle, reg, val)
476
477#define CSR_READ_4(sc, reg)		\
478	bus_space_read_4(sc->sis_btag, sc->sis_bhandle, reg)
479
480#define SIS_TIMEOUT		1000
481#define SIS_MIN_FRAMELEN	60
482
483/*
484 * PCI low memory base and low I/O base register, and
485 * other PCI registers.
486 */
487
488#define SIS_PCI_VENDOR_ID	0x00
489#define SIS_PCI_DEVICE_ID	0x02
490#define SIS_PCI_COMMAND		0x04
491#define SIS_PCI_STATUS		0x06
492#define SIS_PCI_REVID		0x08
493#define SIS_PCI_CLASSCODE	0x09
494#define SIS_PCI_CACHELEN	0x0C
495#define SIS_PCI_LATENCY_TIMER	0x0D
496#define SIS_PCI_HEADER_TYPE	0x0E
497#define SIS_PCI_LOIO		0x10
498#define SIS_PCI_LOMEM		0x14
499#define SIS_PCI_BIOSROM		0x30
500#define SIS_PCI_INTLINE		0x3C
501#define SIS_PCI_INTPIN		0x3D
502#define SIS_PCI_MINGNT		0x3E
503#define SIS_PCI_MINLAT		0x0F
504#define SIS_PCI_RESETOPT	0x48
505#define SIS_PCI_EEPROM_DATA	0x4C
506
507/* power management registers */
508#define SIS_PCI_CAPID		0x50 /* 8 bits */
509#define SIS_PCI_NEXTPTR		0x51 /* 8 bits */
510#define SIS_PCI_PWRMGMTCAP	0x52 /* 16 bits */
511#define SIS_PCI_PWRMGMTCTRL	0x54 /* 16 bits */
512
513#define SIS_PME_EN		0x0010
514#define SIS_PME_STATUS		0x8000
515