HAMMER Utilities: Sync with HAMMER 65.
[dragonfly.git] / sys / dev / netif / sis / if_sisreg.h
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1 /*
2 * Copyright (c) 1997, 1998, 1999
3 * Bill Paul <wpaul@ee.columbia.edu>. All rights reserved.
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.
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.
32 * $FreeBSD: src/sys/pci/if_sisreg.h,v 1.1.4.11 2003/02/05 21:49:01 mbr Exp $
33 * $DragonFly: src/sys/dev/netif/sis/if_sisreg.h,v 1.7 2006/08/01 18:09:37 swildner Exp $
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.
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
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
78 /* NS DP83815 registers */
79 #define NS_CLKRUN 0x3C
80 #define NS_BMCR 0x80
81 #define NS_BMSR 0x84
82 #define NS_PHYIDR1 0x88
83 #define NS_PHYIDR2 0x8C
84 #define NS_ANAR 0x90
85 #define NS_ANLPAR 0x94
86 #define NS_ANER 0x98
87 #define NS_ANNPTR 0x9C
89 #define NS_PHY_CR 0xE4
90 #define NS_PHY_10BTSCR 0xE8
91 #define NS_PHY_PAGE 0xCC
92 #define NS_PHY_EXTCFG 0xF0
93 #define NS_PHY_DSPCFG 0xF4
94 #define NS_PHY_SDCFG 0xF8
95 #define NS_PHY_TDATA 0xFC
97 #define NS_CLKRUN_PMESTS 0x00008000
98 #define NS_CLKRUN_PMEENB 0x00000100
99 #define NS_CLNRUN_CLKRUN_ENB 0x00000001
101 #define SIS_CSR_TX_ENABLE 0x00000001
102 #define SIS_CSR_TX_DISABLE 0x00000002
103 #define SIS_CSR_RX_ENABLE 0x00000004
104 #define SIS_CSR_RX_DISABLE 0x00000008
105 #define SIS_CSR_TX_RESET 0x00000010
106 #define SIS_CSR_RX_RESET 0x00000020
107 #define SIS_CSR_SOFTINTR 0x00000080
108 #define SIS_CSR_RESET 0x00000100
109 #define SIS_CSR_ACCESS_MODE 0x00000200
110 #define SIS_CSR_RELOAD 0x00000400
112 #define SIS_CFG_BIGENDIAN 0x00000001
113 #define SIS_CFG_PERR_DETECT 0x00000008
114 #define SIS_CFG_DEFER_DISABLE 0x00000010
115 #define SIS_CFG_OUTOFWIN_TIMER 0x00000020
116 #define SIS_CFG_SINGLE_BACKOFF 0x00000040
117 #define SIS_CFG_PCIREQ_ALG 0x00000080
118 #define SIS_CFG_FAIR_BACKOFF 0x00000200 /* 635 & 900B Specific */
119 #define SIS_CFG_RND_CNT 0x00000400 /* 635 & 900B Specific */
120 #define SIS_CFG_EDB_MASTER_EN 0x00002000
122 #define SIS_EECTL_DIN 0x00000001
123 #define SIS_EECTL_DOUT 0x00000002
124 #define SIS_EECTL_CLK 0x00000004
125 #define SIS_EECTL_CSEL 0x00000008
127 #define SIS_MII_CLK 0x00000040
128 #define SIS_MII_DIR 0x00000020
129 #define SIS_MII_DATA 0x00000010
131 #define SIS_EECMD_WRITE 0x140
132 #define SIS_EECMD_READ 0x180
133 #define SIS_EECMD_ERASE 0x1c0
136 * EEPROM Commands for SiS96x
137 * chipsets.
139 #define SIS_EECMD_REQ 0x00000400
140 #define SIS_EECMD_DONE 0x00000200
141 #define SIS_EECMD_GNT 0x00000100
143 #define SIS_EE_NODEADDR 0x8
144 #define NS_EE_NODEADDR 0x6
146 #define SIS_PCICTL_SRAMADDR 0x0000001F
147 #define SIS_PCICTL_RAMTSTENB 0x00000020
148 #define SIS_PCICTL_TXTSTENB 0x00000040
149 #define SIS_PCICTL_RXTSTENB 0x00000080
150 #define SIS_PCICTL_BMTSTENB 0x00000200
151 #define SIS_PCICTL_RAMADDR 0x001F0000
152 #define SIS_PCICTL_ROMTIME 0x0F000000
153 #define SIS_PCICTL_DISCTEST 0x40000000
155 #define SIS_ISR_RX_OK 0x00000001
156 #define SIS_ISR_RX_DESC_OK 0x00000002
157 #define SIS_ISR_RX_ERR 0x00000004
158 #define SIS_ISR_RX_EARLY 0x00000008
159 #define SIS_ISR_RX_IDLE 0x00000010
160 #define SIS_ISR_RX_OFLOW 0x00000020
161 #define SIS_ISR_TX_OK 0x00000040
162 #define SIS_ISR_TX_DESC_OK 0x00000080
163 #define SIS_ISR_TX_ERR 0x00000100
164 #define SIS_ISR_TX_IDLE 0x00000200
165 #define SIS_ISR_TX_UFLOW 0x00000400
166 #define SIS_ISR_SOFTINTR 0x00000800
167 #define SIS_ISR_HIBITS 0x00008000
168 #define SIS_ISR_RX_FIFO_OFLOW 0x00010000
169 #define SIS_ISR_TGT_ABRT 0x00100000
170 #define SIS_ISR_BM_ABRT 0x00200000
171 #define SIS_ISR_SYSERR 0x00400000
172 #define SIS_ISR_PARITY_ERR 0x00800000
173 #define SIS_ISR_RX_RESET_DONE 0x01000000
174 #define SIS_ISR_TX_RESET_DONE 0x02000000
175 #define SIS_ISR_TX_PAUSE_START 0x04000000
176 #define SIS_ISR_TX_PAUSE_DONE 0x08000000
177 #define SIS_ISR_WAKE_EVENT 0x10000000
179 #define SIS_IMR_RX_OK 0x00000001
180 #define SIS_IMR_RX_DESC_OK 0x00000002
181 #define SIS_IMR_RX_ERR 0x00000004
182 #define SIS_IMR_RX_EARLY 0x00000008
183 #define SIS_IMR_RX_IDLE 0x00000010
184 #define SIS_IMR_RX_OFLOW 0x00000020
185 #define SIS_IMR_TX_OK 0x00000040
186 #define SIS_IMR_TX_DESC_OK 0x00000080
187 #define SIS_IMR_TX_ERR 0x00000100
188 #define SIS_IMR_TX_IDLE 0x00000200
189 #define SIS_IMR_TX_UFLOW 0x00000400
190 #define SIS_IMR_SOFTINTR 0x00000800
191 #define SIS_IMR_HIBITS 0x00008000
192 #define SIS_IMR_RX_FIFO_OFLOW 0x00010000
193 #define SIS_IMR_TGT_ABRT 0x00100000
194 #define SIS_IMR_BM_ABRT 0x00200000
195 #define SIS_IMR_SYSERR 0x00400000
196 #define SIS_IMR_PARITY_ERR 0x00800000
197 #define SIS_IMR_RX_RESET_DONE 0x01000000
198 #define SIS_IMR_TX_RESET_DONE 0x02000000
199 #define SIS_IMR_TX_PAUSE_START 0x04000000
200 #define SIS_IMR_TX_PAUSE_DONE 0x08000000
201 #define SIS_IMR_WAKE_EVENT 0x10000000
203 #define SIS_INTRS \
204 (SIS_IMR_RX_OFLOW|SIS_IMR_TX_UFLOW|SIS_IMR_TX_OK|\
205 SIS_IMR_TX_IDLE|SIS_IMR_RX_OK|SIS_IMR_RX_ERR|\
206 SIS_IMR_RX_IDLE|\
207 SIS_IMR_SYSERR)
209 #define SIS_IER_INTRENB 0x00000001
211 #define SIS_PHYCTL_ACCESS 0x00000010
212 #define SIS_PHYCTL_OP 0x00000020
213 #define SIS_PHYCTL_REGADDR 0x000007C0
214 #define SIS_PHYCTL_PHYADDR 0x0000F800
215 #define SIS_PHYCTL_PHYDATA 0xFFFF0000
217 #define SIS_PHYOP_READ 0x00000020
218 #define SIS_PHYOP_WRITE 0x00000000
220 #define SIS_TXCFG_DRAIN_THRESH 0x0000003F /* 32-byte units */
221 #define SIS_TXCFG_FILL_THRESH 0x00003F00 /* 32-byte units */
222 #define SIS_TXCFG_DMABURST 0x00700000
223 #define SIS_TXCFG_AUTOPAD 0x10000000
224 #define SIS_TXCFG_LOOPBK 0x20000000
225 #define SIS_TXCFG_IGN_HBEAT 0x40000000
226 #define SIS_TXCFG_IGN_CARR 0x80000000
228 #define SIS_TXCFG_DRAIN(x) (((x) >> 5) & SIS_TXCFG_DRAIN_THRESH)
229 #define SIS_TXCFG_FILL(x) ((((x) >> 5) << 8) & SIS_TXCFG_FILL_THRESH)
231 #define SIS_TXDMA_512BYTES 0x00000000
232 #define SIS_TXDMA_4BYTES 0x00100000
233 #define SIS_TXDMA_8BYTES 0x00200000
234 #define SIS_TXDMA_16BYTES 0x00300000
235 #define SIS_TXDMA_32BYTES 0x00400000
236 #define SIS_TXDMA_64BYTES 0x00500000
237 #define SIS_TXDMA_128BYTES 0x00600000
238 #define SIS_TXDMA_256BYTES 0x00700000
240 #define SIS_TXCFG_100 \
241 (SIS_TXDMA_64BYTES|SIS_TXCFG_AUTOPAD|\
242 SIS_TXCFG_FILL(64)|SIS_TXCFG_DRAIN(1536))
244 #define SIS_TXCFG_10 \
245 (SIS_TXDMA_32BYTES|SIS_TXCFG_AUTOPAD|\
246 SIS_TXCFG_FILL(64)|SIS_TXCFG_DRAIN(1536))
248 #define SIS_RXCFG_DRAIN_THRESH 0x0000003E /* 8-byte units */
249 #define SIS_RXCFG_DMABURST 0x00700000
250 #define SIS_RXCFG_RX_JABBER 0x08000000
251 #define SIS_RXCFG_RX_TXPKTS 0x10000000
252 #define SIS_RXCFG_RX_RUNTS 0x40000000
253 #define SIS_RXCFG_RX_GIANTS 0x80000000
255 #define SIS_RXCFG_DRAIN(x) ((((x) >> 3) << 1) & SIS_RXCFG_DRAIN_THRESH)
257 #define SIS_RXDMA_512BYTES 0x00000000
258 #define SIS_RXDMA_4BYTES 0x00100000
259 #define SIS_RXDMA_8BYTES 0x00200000
260 #define SIS_RXDMA_16BYTES 0x00300000
261 #define SIS_RXDMA_32BYTES 0x00400000
262 #define SIS_RXDMA_64BYTES 0x00500000
263 #define SIS_RXDMA_128BYTES 0x00600000
264 #define SIS_RXDMA_256BYTES 0x00700000
266 #define SIS_RXCFG256 \
267 (SIS_RXCFG_DRAIN(64) | SIS_RXDMA_256BYTES)
268 #define SIS_RXCFG64 \
269 (SIS_RXCFG_DRAIN(64) | SIS_RXDMA_64BYTES)
271 #define SIS_RXFILTCTL_ADDR 0x000F0000
272 #define NS_RXFILTCTL_MCHASH 0x00200000
273 #define NS_RXFILTCTL_ARP 0x00400000
274 #define NS_RXFILTCTL_PERFECT 0x08000000
275 #define SIS_RXFILTCTL_ALLPHYS 0x10000000
276 #define SIS_RXFILTCTL_ALLMULTI 0x20000000
277 #define SIS_RXFILTCTL_BROAD 0x40000000
278 #define SIS_RXFILTCTL_ENABLE 0x80000000
280 #define SIS_FILTADDR_PAR0 0x00000000
281 #define SIS_FILTADDR_PAR1 0x00010000
282 #define SIS_FILTADDR_PAR2 0x00020000
283 #define SIS_FILTADDR_MAR0 0x00040000
284 #define SIS_FILTADDR_MAR1 0x00050000
285 #define SIS_FILTADDR_MAR2 0x00060000
286 #define SIS_FILTADDR_MAR3 0x00070000
287 #define SIS_FILTADDR_MAR4 0x00080000
288 #define SIS_FILTADDR_MAR5 0x00090000
289 #define SIS_FILTADDR_MAR6 0x000A0000
290 #define SIS_FILTADDR_MAR7 0x000B0000
292 #define NS_FILTADDR_PAR0 0x00000000
293 #define NS_FILTADDR_PAR1 0x00000002
294 #define NS_FILTADDR_PAR2 0x00000004
296 #define NS_FILTADDR_FMEM_LO 0x00000200
297 #define NS_FILTADDR_FMEM_HI 0x000003FE
300 * DMA descriptor structures. The first part of the descriptor
301 * is the hardware descriptor format, which is just three longwords.
302 * After this, we include some additional structure members for
303 * use by the driver. Note that for this structure will be a different
304 * size on the alpha, but that's okay as long as it's a multiple of 4
305 * bytes in size.
307 struct sis_desc {
308 /* SiS hardware descriptor section */
309 uint32_t sis_next;
310 uint32_t sis_cmdsts;
311 #define sis_rxstat sis_cmdsts
312 #define sis_txstat sis_cmdsts
313 #define sis_ctl sis_cmdsts
314 uint32_t sis_ptr;
315 /* Driver software section */
316 struct mbuf *sis_mbuf;
317 struct sis_desc *sis_nextdesc;
318 bus_dmamap_t sis_map;
321 #define SIS_CMDSTS_BUFLEN 0x00000FFF
322 #define SIS_CMDSTS_PKT_OK 0x08000000
323 #define SIS_CMDSTS_CRC 0x10000000
324 #define SIS_CMDSTS_INTR 0x20000000
325 #define SIS_CMDSTS_MORE 0x40000000
326 #define SIS_CMDSTS_OWN 0x80000000
328 #define SIS_LASTDESC(x) (!((x)->sis_ctl & SIS_CMDSTS_MORE)))
329 #define SIS_OWNDESC(x) ((x)->sis_ctl & SIS_CMDSTS_OWN)
330 #define SIS_INC(x, y) (x) = ((x) == ((y)-1)) ? 0 : (x)+1
331 #define SIS_RXBYTES(x) (((x)->sis_ctl & SIS_CMDSTS_BUFLEN) - ETHER_CRC_LEN)
333 #define SIS_RXSTAT_COLL 0x00010000
334 #define SIS_RXSTAT_LOOPBK 0x00020000
335 #define SIS_RXSTAT_ALIGNERR 0x00040000
336 #define SIS_RXSTAT_CRCERR 0x00080000
337 #define SIS_RXSTAT_SYMBOLERR 0x00100000
338 #define SIS_RXSTAT_RUNT 0x00200000
339 #define SIS_RXSTAT_GIANT 0x00400000
340 #define SIS_RXSTAT_DSTCLASS 0x01800000
341 #define SIS_RXSTAT_OVERRUN 0x02000000
342 #define SIS_RXSTAT_RX_ABORT 0x04000000
344 #define SIS_DSTCLASS_REJECT 0x00000000
345 #define SIS_DSTCLASS_UNICAST 0x00800000
346 #define SIS_DSTCLASS_MULTICAST 0x01000000
347 #define SIS_DSTCLASS_BROADCAST 0x02000000
349 #define SIS_TXSTAT_COLLCNT 0x000F0000
350 #define SIS_TXSTAT_EXCESSCOLLS 0x00100000
351 #define SIS_TXSTAT_OUTOFWINCOLL 0x00200000
352 #define SIS_TXSTAT_EXCESS_DEFER 0x00400000
353 #define SIS_TXSTAT_DEFERED 0x00800000
354 #define SIS_TXSTAT_CARR_LOST 0x01000000
355 #define SIS_TXSTAT_UNDERRUN 0x02000000
356 #define SIS_TXSTAT_TX_ABORT 0x04000000
358 #define SIS_RX_LIST_CNT 64
359 #define SIS_TX_LIST_CNT 128
361 #define SIS_RX_LIST_SZ SIS_RX_LIST_CNT * sizeof(struct sis_desc)
362 #define SIS_TX_LIST_SZ SIS_TX_LIST_CNT * sizeof(struct sis_desc)
364 struct sis_list_data {
365 struct sis_desc *sis_rx_list;
366 struct sis_desc *sis_tx_list;
367 bus_dma_tag_t sis_rx_tag;
368 bus_dmamap_t sis_rx_dmamap;
369 bus_dma_tag_t sis_tx_tag;
370 bus_dmamap_t sis_tx_dmamap;
373 struct sis_ring_data {
374 int sis_rx_prod;
375 int sis_tx_prod;
376 int sis_tx_cons;
377 int sis_tx_cnt;
378 uint32_t sis_rx_paddr;
379 uint32_t sis_tx_paddr;
384 * SiS 900 PCI revision codes.
386 #define SIS_REV_900B 0x0003
387 #define SIS_REV_630A 0x0080
388 #define SIS_REV_630E 0x0081
389 #define SIS_REV_630S 0x0082
390 #define SIS_REV_630EA1 0x0083
391 #define SIS_REV_630ET 0x0084
392 #define SIS_REV_635 0x0090
393 #define SIS_REV_96x 0x0091
395 struct sis_type {
396 uint16_t sis_vid;
397 uint16_t sis_did;
398 char *sis_name;
401 struct sis_mii_frame {
402 uint8_t mii_stdelim;
403 uint8_t mii_opcode;
404 uint8_t mii_phyaddr;
405 uint8_t mii_regaddr;
406 uint8_t mii_turnaround;
407 uint16_t mii_data;
411 * MII constants
413 #define SIS_MII_STARTDELIM 0x01
414 #define SIS_MII_READOP 0x02
415 #define SIS_MII_WRITEOP 0x01
416 #define SIS_MII_TURNAROUND 0x02
418 #define SIS_TYPE_900 1
419 #define SIS_TYPE_7016 2
420 #define SIS_TYPE_83815 3
422 struct sis_softc {
423 struct arpcom arpcom; /* interface info */
424 bus_space_handle_t sis_bhandle;
425 bus_space_tag_t sis_btag;
426 struct resource *sis_res;
427 struct resource *sis_irq;
428 void *sis_intrhand;
429 device_t sis_miibus;
430 uint8_t sis_type;
431 uint8_t sis_rev;
432 uint8_t sis_link;
433 struct sis_list_data sis_ldata;
434 bus_dma_tag_t sis_parent_tag;
435 bus_dma_tag_t sis_tag;
436 struct sis_ring_data sis_cdata;
437 struct callout sis_timer;
438 #ifdef DEVICE_POLLING
439 int rxcycles;
440 #endif
444 * register space access macros
446 #define CSR_WRITE_4(sc, reg, val) \
447 bus_space_write_4(sc->sis_btag, sc->sis_bhandle, reg, val)
449 #define CSR_READ_4(sc, reg) \
450 bus_space_read_4(sc->sis_btag, sc->sis_bhandle, reg)
452 #define CSR_READ_2(sc, reg) \
453 bus_space_read_2(sc->sis_btag, sc->sis_bhandle, reg)
455 #define SIS_TIMEOUT 1000
456 #define ETHER_ALIGN 2
457 #define SIS_RXLEN 1536
458 #define SIS_MIN_FRAMELEN 60
461 * PCI low memory base and low I/O base register, and
462 * other PCI registers.
465 #define SIS_PCI_VENDOR_ID 0x00
466 #define SIS_PCI_DEVICE_ID 0x02
467 #define SIS_PCI_COMMAND 0x04
468 #define SIS_PCI_STATUS 0x06
469 #define SIS_PCI_REVID 0x08
470 #define SIS_PCI_CLASSCODE 0x09
471 #define SIS_PCI_CACHELEN 0x0C
472 #define SIS_PCI_LATENCY_TIMER 0x0D
473 #define SIS_PCI_HEADER_TYPE 0x0E
474 #define SIS_PCI_LOIO 0x10
475 #define SIS_PCI_LOMEM 0x14
476 #define SIS_PCI_BIOSROM 0x30
477 #define SIS_PCI_INTLINE 0x3C
478 #define SIS_PCI_INTPIN 0x3D
479 #define SIS_PCI_MINGNT 0x3E
480 #define SIS_PCI_MINLAT 0x0F
481 #define SIS_PCI_RESETOPT 0x48
482 #define SIS_PCI_EEPROM_DATA 0x4C
484 /* power management registers */
485 #define SIS_PCI_CAPID 0x50 /* 8 bits */
486 #define SIS_PCI_NEXTPTR 0x51 /* 8 bits */
487 #define SIS_PCI_PWRMGMTCAP 0x52 /* 16 bits */
488 #define SIS_PCI_PWRMGMTCTRL 0x54 /* 16 bits */
490 #define SIS_PSTATE_MASK 0x0003
491 #define SIS_PSTATE_D0 0x0000
492 #define SIS_PSTATE_D1 0x0001
493 #define SIS_PSTATE_D2 0x0002
494 #define SIS_PSTATE_D3 0x0003
495 #define SIS_PME_EN 0x0010
496 #define SIS_PME_STATUS 0x8000