xref: /openbmc/u-boot/drivers/usb/host/r8a66597.h (revision 78a88f79)
1 /* SPDX-License-Identifier: GPL-2.0 */
2 /*
3  * R8A66597 HCD (Host Controller Driver) for u-boot
4  *
5  * Copyright (C) 2008  Yoshihiro Shimoda <shimoda.yoshihiro@renesas.com>
6  */
7 
8 #ifndef __R8A66597_H__
9 #define __R8A66597_H__
10 
11 #define SYSCFG0		0x00
12 #define SYSCFG1		0x02
13 #define SYSSTS0		0x04
14 #define SYSSTS1		0x06
15 #define DVSTCTR0	0x08
16 #define DVSTCTR1	0x0A
17 #define TESTMODE	0x0C
18 #define PINCFG		0x0E
19 #define DMA0CFG		0x10
20 #define DMA1CFG		0x12
21 #define CFIFO		0x14
22 #define D0FIFO		0x18
23 #define D1FIFO		0x1C
24 #define CFIFOSEL	0x20
25 #define CFIFOCTR	0x22
26 #define CFIFOSIE	0x24
27 #define D0FIFOSEL	0x28
28 #define D0FIFOCTR	0x2A
29 #define D1FIFOSEL	0x2C
30 #define D1FIFOCTR	0x2E
31 #define INTENB0		0x30
32 #define INTENB1		0x32
33 #define INTENB2		0x34
34 #define BRDYENB		0x36
35 #define NRDYENB		0x38
36 #define BEMPENB		0x3A
37 #define SOFCFG		0x3C
38 #define INTSTS0		0x40
39 #define INTSTS1		0x42
40 #define INTSTS2		0x44
41 #define BRDYSTS		0x46
42 #define NRDYSTS		0x48
43 #define BEMPSTS		0x4A
44 #define FRMNUM		0x4C
45 #define UFRMNUM		0x4E
46 #define USBADDR		0x50
47 #define USBREQ		0x54
48 #define USBVAL		0x56
49 #define USBINDX		0x58
50 #define USBLENG		0x5A
51 #define DCPCFG		0x5C
52 #define DCPMAXP		0x5E
53 #define DCPCTR		0x60
54 #define PIPESEL		0x64
55 #define PIPECFG		0x68
56 #define PIPEBUF		0x6A
57 #define PIPEMAXP	0x6C
58 #define PIPEPERI	0x6E
59 #define PIPE1CTR	0x70
60 #define PIPE2CTR	0x72
61 #define PIPE3CTR	0x74
62 #define PIPE4CTR	0x76
63 #define PIPE5CTR	0x78
64 #define PIPE6CTR	0x7A
65 #define PIPE7CTR	0x7C
66 #define PIPE8CTR	0x7E
67 #define PIPE9CTR	0x80
68 #define PIPE1TRE	0x90
69 #define PIPE1TRN	0x92
70 #define PIPE2TRE	0x94
71 #define PIPE2TRN	0x96
72 #define PIPE3TRE	0x98
73 #define PIPE3TRN	0x9A
74 #define PIPE4TRE	0x9C
75 #define	PIPE4TRN	0x9E
76 #define	PIPE5TRE	0xA0
77 #define	PIPE5TRN	0xA2
78 #define DEVADD0		0xD0
79 #define DEVADD1		0xD2
80 #define DEVADD2		0xD4
81 #define DEVADD3		0xD6
82 #define DEVADD4		0xD8
83 #define DEVADD5		0xDA
84 #define DEVADD6		0xDC
85 #define DEVADD7		0xDE
86 #define DEVADD8		0xE0
87 #define DEVADD9		0xE2
88 #define DEVADDA		0xE4
89 #define SUSPMODE0	0x102	/* RZ/A only */
90 
91 /* System Configuration Control Register */
92 #if !defined(CONFIG_RZA_USB)
93 #define	XTAL		0xC000	/* b15-14: Crystal selection */
94 #define	  XTAL48	 0x8000	  /* 48MHz */
95 #define	  XTAL24	 0x4000	  /* 24MHz */
96 #define	  XTAL12	 0x0000	  /* 12MHz */
97 #define	XCKE		0x2000	/* b13: External clock enable */
98 #define	PLLC		0x0800	/* b11: PLL control */
99 #define	SCKE		0x0400	/* b10: USB clock enable */
100 #define	PCSDIS		0x0200	/* b9: not CS wakeup */
101 #define	LPSME		0x0100	/* b8: Low power sleep mode */
102 #endif
103 #define	HSE		0x0080	/* b7: Hi-speed enable */
104 #define	DCFM		0x0040	/* b6: Controller function select  */
105 #define	DRPD		0x0020	/* b5: D+/- pull down control */
106 #define	DPRPU		0x0010	/* b4: D+ pull up control */
107 #if defined(CONFIG_RZA_USB)
108 #define	XTAL		0x0004	/* b2: Crystal selection */
109 #define	  XTAL12	 0x0004	  /* 12MHz */
110 #define	  XTAL48	 0x0000	  /* 48MHz */
111 #define	UPLLE		0x0002	/* b1: internal PLL control */
112 #endif
113 #define	USBE		0x0001	/* b0: USB module operation enable */
114 
115 /* System Configuration Status Register */
116 #define	OVCBIT		0x8000	/* b15-14: Over-current bit */
117 #define	OVCMON		0xC000	/* b15-14: Over-current monitor */
118 #define	SOFEA		0x0020	/* b5: SOF monitor */
119 #define	IDMON		0x0004	/* b3: ID-pin monitor */
120 #define	LNST		0x0003	/* b1-0: D+, D- line status */
121 #define	  SE1		 0x0003	  /* SE1 */
122 #define	  FS_KSTS	 0x0002	  /* Full-Speed K State */
123 #define	  FS_JSTS	 0x0001	  /* Full-Speed J State */
124 #define	  LS_JSTS	 0x0002	  /* Low-Speed J State */
125 #define	  LS_KSTS	 0x0001	  /* Low-Speed K State */
126 #define	  SE0		 0x0000	  /* SE0 */
127 
128 /* Device State Control Register */
129 #define	EXTLP0		0x0400	/* b10: External port */
130 #define	VBOUT		0x0200	/* b9: VBUS output */
131 #define	WKUP		0x0100	/* b8: Remote wakeup */
132 #define	RWUPE		0x0080	/* b7: Remote wakeup sense */
133 #define	USBRST		0x0040	/* b6: USB reset enable */
134 #define	RESUME		0x0020	/* b5: Resume enable */
135 #define	UACT		0x0010	/* b4: USB bus enable */
136 #define	RHST		0x0007	/* b1-0: Reset handshake status */
137 #define	  HSPROC	 0x0004	  /* HS handshake is processing */
138 #define	  HSMODE	 0x0003	  /* Hi-Speed mode */
139 #define	  FSMODE	 0x0002	  /* Full-Speed mode */
140 #define	  LSMODE	 0x0001	  /* Low-Speed mode */
141 #define	  UNDECID	 0x0000	  /* Undecided */
142 
143 /* Test Mode Register */
144 #define	UTST			0x000F	/* b3-0: Test select */
145 #define	  H_TST_PACKET		 0x000C	  /* HOST TEST Packet */
146 #define	  H_TST_SE0_NAK		 0x000B	  /* HOST TEST SE0 NAK */
147 #define	  H_TST_K		 0x000A	  /* HOST TEST K */
148 #define	  H_TST_J		 0x0009	  /* HOST TEST J */
149 #define	  H_TST_NORMAL		 0x0000	  /* HOST Normal Mode */
150 #define	  P_TST_PACKET		 0x0004	  /* PERI TEST Packet */
151 #define	  P_TST_SE0_NAK		 0x0003	  /* PERI TEST SE0 NAK */
152 #define	  P_TST_K		 0x0002	  /* PERI TEST K */
153 #define	  P_TST_J		 0x0001	  /* PERI TEST J */
154 #define	  P_TST_NORMAL		 0x0000	  /* PERI Normal Mode */
155 
156 /* Data Pin Configuration Register */
157 #define	LDRV			0x8000	/* b15: Drive Current Adjust */
158 #define	  VIF1			  0x0000		/* VIF = 1.8V */
159 #define	  VIF3			  0x8000		/* VIF = 3.3V */
160 #define	INTA			0x0001	/* b1: USB INT-pin active */
161 
162 /* DMAx Pin Configuration Register */
163 #define	DREQA			0x4000	/* b14: Dreq active select */
164 #define	BURST			0x2000	/* b13: Burst mode */
165 #define	DACKA			0x0400	/* b10: Dack active select */
166 #define	DFORM			0x0380	/* b9-7: DMA mode select */
167 #define	  CPU_ADR_RD_WR		 0x0000	  /* Address + RD/WR mode (CPU bus) */
168 #define	  CPU_DACK_RD_WR	 0x0100	  /* DACK + RD/WR mode (CPU bus) */
169 #define	  CPU_DACK_ONLY		 0x0180	  /* DACK only mode (CPU bus) */
170 #define	  SPLIT_DACK_ONLY	 0x0200	  /* DACK only mode (SPLIT bus) */
171 #define	DENDA			0x0040	/* b6: Dend active select */
172 #define	PKTM			0x0020	/* b5: Packet mode */
173 #define	DENDE			0x0010	/* b4: Dend enable */
174 #define	OBUS			0x0004	/* b2: OUTbus mode */
175 
176 /* CFIFO/DxFIFO Port Select Register */
177 #define	RCNT		0x8000	/* b15: Read count mode */
178 #define	REW		0x4000	/* b14: Buffer rewind */
179 #define	DCLRM		0x2000	/* b13: DMA buffer clear mode */
180 #define	DREQE		0x1000	/* b12: DREQ output enable */
181 #if defined(CONFIG_SUPERH_ON_CHIP_R8A66597)
182 #define	MBW		0x0800
183 #else
184 #if !defined(CONFIG_RZA_USB)
185 #define	MBW		0x0400	/* b10: Maximum bit width for FIFO access */
186 #else
187 #define	MBW		0x0800	/* b10: Maximum bit width for FIFO access */
188 #endif
189 #endif
190 #define	  MBW_8		 0x0000	  /*  8bit */
191 #define	  MBW_16	 0x0400	  /* 16bit */
192 #define	  MBW_32	 0x0800   /* 32bit */
193 #define	BIGEND		0x0100	/* b8: Big endian mode */
194 #define	  BYTE_LITTLE	 0x0000		/* little dendian */
195 #define	  BYTE_BIG	 0x0100		/* big endifan */
196 #define	ISEL		0x0020	/* b5: DCP FIFO port direction select */
197 #define	CURPIPE		0x000F	/* b2-0: PIPE select */
198 
199 /* CFIFO/DxFIFO Port Control Register */
200 #define	BVAL		0x8000	/* b15: Buffer valid flag */
201 #define	BCLR		0x4000	/* b14: Buffer clear */
202 #define	FRDY		0x2000	/* b13: FIFO ready */
203 #define	DTLN		0x0FFF	/* b11-0: FIFO received data length */
204 
205 /* Interrupt Enable Register 0 */
206 #define	VBSE	0x8000	/* b15: VBUS interrupt */
207 #define	RSME	0x4000	/* b14: Resume interrupt */
208 #define	SOFE	0x2000	/* b13: Frame update interrupt */
209 #define	DVSE	0x1000	/* b12: Device state transition interrupt */
210 #define	CTRE	0x0800	/* b11: Control transfer stage transition interrupt */
211 #define	BEMPE	0x0400	/* b10: Buffer empty interrupt */
212 #define	NRDYE	0x0200	/* b9: Buffer not ready interrupt */
213 #define	BRDYE	0x0100	/* b8: Buffer ready interrupt */
214 
215 /* Interrupt Enable Register 1 */
216 #define	OVRCRE		0x8000	/* b15: Over-current interrupt */
217 #define	BCHGE		0x4000	/* b14: USB us chenge interrupt */
218 #define	DTCHE		0x1000	/* b12: Detach sense interrupt */
219 #define	ATTCHE		0x0800	/* b11: Attach sense interrupt */
220 #define	EOFERRE		0x0040	/* b6: EOF error interrupt */
221 #define	SIGNE		0x0020	/* b5: SETUP IGNORE interrupt */
222 #define	SACKE		0x0010	/* b4: SETUP ACK interrupt */
223 
224 /* BRDY Interrupt Enable/Status Register */
225 #define	BRDY9		0x0200	/* b9: PIPE9 */
226 #define	BRDY8		0x0100	/* b8: PIPE8 */
227 #define	BRDY7		0x0080	/* b7: PIPE7 */
228 #define	BRDY6		0x0040	/* b6: PIPE6 */
229 #define	BRDY5		0x0020	/* b5: PIPE5 */
230 #define	BRDY4		0x0010	/* b4: PIPE4 */
231 #define	BRDY3		0x0008	/* b3: PIPE3 */
232 #define	BRDY2		0x0004	/* b2: PIPE2 */
233 #define	BRDY1		0x0002	/* b1: PIPE1 */
234 #define	BRDY0		0x0001	/* b1: PIPE0 */
235 
236 /* NRDY Interrupt Enable/Status Register */
237 #define	NRDY9		0x0200	/* b9: PIPE9 */
238 #define	NRDY8		0x0100	/* b8: PIPE8 */
239 #define	NRDY7		0x0080	/* b7: PIPE7 */
240 #define	NRDY6		0x0040	/* b6: PIPE6 */
241 #define	NRDY5		0x0020	/* b5: PIPE5 */
242 #define	NRDY4		0x0010	/* b4: PIPE4 */
243 #define	NRDY3		0x0008	/* b3: PIPE3 */
244 #define	NRDY2		0x0004	/* b2: PIPE2 */
245 #define	NRDY1		0x0002	/* b1: PIPE1 */
246 #define	NRDY0		0x0001	/* b1: PIPE0 */
247 
248 /* BEMP Interrupt Enable/Status Register */
249 #define	BEMP9		0x0200	/* b9: PIPE9 */
250 #define	BEMP8		0x0100	/* b8: PIPE8 */
251 #define	BEMP7		0x0080	/* b7: PIPE7 */
252 #define	BEMP6		0x0040	/* b6: PIPE6 */
253 #define	BEMP5		0x0020	/* b5: PIPE5 */
254 #define	BEMP4		0x0010	/* b4: PIPE4 */
255 #define	BEMP3		0x0008	/* b3: PIPE3 */
256 #define	BEMP2		0x0004	/* b2: PIPE2 */
257 #define	BEMP1		0x0002	/* b1: PIPE1 */
258 #define	BEMP0		0x0001	/* b0: PIPE0 */
259 
260 /* SOF Pin Configuration Register */
261 #define	TRNENSEL	0x0100	/* b8: Select transaction enable period */
262 #define	BRDYM		0x0040	/* b6: BRDY clear timing */
263 #define	INTL		0x0020	/* b5: Interrupt sense select */
264 #define	EDGESTS		0x0010	/* b4:  */
265 #define	SOFMODE		0x000C	/* b3-2: SOF pin select */
266 #define	  SOF_125US	 0x0008	  /* SOF OUT 125us Frame Signal */
267 #define	  SOF_1MS	 0x0004	  /* SOF OUT 1ms Frame Signal */
268 #define	  SOF_DISABLE	 0x0000	  /* SOF OUT Disable */
269 
270 /* Interrupt Status Register 0 */
271 #define	VBINT	0x8000	/* b15: VBUS interrupt */
272 #define	RESM	0x4000	/* b14: Resume interrupt */
273 #define	SOFR	0x2000	/* b13: SOF frame update interrupt */
274 #define	DVST	0x1000	/* b12: Device state transition interrupt */
275 #define	CTRT	0x0800	/* b11: Control transfer stage transition interrupt */
276 #define	BEMP	0x0400	/* b10: Buffer empty interrupt */
277 #define	NRDY	0x0200	/* b9: Buffer not ready interrupt */
278 #define	BRDY	0x0100	/* b8: Buffer ready interrupt */
279 #define	VBSTS	0x0080	/* b7: VBUS input port */
280 #define	DVSQ	0x0070	/* b6-4: Device state */
281 #define	  DS_SPD_CNFG	 0x0070	  /* Suspend Configured */
282 #define	  DS_SPD_ADDR	 0x0060	  /* Suspend Address */
283 #define	  DS_SPD_DFLT	 0x0050	  /* Suspend Default */
284 #define	  DS_SPD_POWR	 0x0040	  /* Suspend Powered */
285 #define	  DS_SUSP	 0x0040	  /* Suspend */
286 #define	  DS_CNFG	 0x0030	  /* Configured */
287 #define	  DS_ADDS	 0x0020	  /* Address */
288 #define	  DS_DFLT	 0x0010	  /* Default */
289 #define	  DS_POWR	 0x0000	  /* Powered */
290 #define	DVSQS		0x0030	/* b5-4: Device state */
291 #define	VALID		0x0008	/* b3: Setup packet detected flag */
292 #define	CTSQ		0x0007	/* b2-0: Control transfer stage */
293 #define	  CS_SQER	 0x0006	  /* Sequence error */
294 #define	  CS_WRND	 0x0005	  /* Control write nodata status stage */
295 #define	  CS_WRSS	 0x0004	  /* Control write status stage */
296 #define	  CS_WRDS	 0x0003	  /* Control write data stage */
297 #define	  CS_RDSS	 0x0002	  /* Control read status stage */
298 #define	  CS_RDDS	 0x0001	  /* Control read data stage */
299 #define	  CS_IDST	 0x0000	  /* Idle or setup stage */
300 
301 /* Interrupt Status Register 1 */
302 #define	OVRCR		0x8000	/* b15: Over-current interrupt */
303 #define	BCHG		0x4000	/* b14: USB bus chenge interrupt */
304 #define	DTCH		0x1000	/* b12: Detach sense interrupt */
305 #define	ATTCH		0x0800	/* b11: Attach sense interrupt */
306 #define	EOFERR		0x0040	/* b6: EOF-error interrupt */
307 #define	SIGN		0x0020	/* b5: Setup ignore interrupt */
308 #define	SACK		0x0010	/* b4: Setup acknowledge interrupt */
309 
310 /* Frame Number Register */
311 #define	OVRN		0x8000	/* b15: Overrun error */
312 #define	CRCE		0x4000	/* b14: Received data error */
313 #define	FRNM		0x07FF	/* b10-0: Frame number */
314 
315 /* Micro Frame Number Register */
316 #define	UFRNM		0x0007	/* b2-0: Micro frame number */
317 
318 /* Default Control Pipe Maxpacket Size Register */
319 /* Pipe Maxpacket Size Register */
320 #define	DEVSEL	0xF000	/* b15-14: Device address select */
321 #define	MAXP	0x007F	/* b6-0: Maxpacket size of default control pipe */
322 
323 /* Default Control Pipe Control Register */
324 #define	BSTS		0x8000	/* b15: Buffer status */
325 #define	SUREQ		0x4000	/* b14: Send USB request  */
326 #define	CSCLR		0x2000	/* b13: complete-split status clear */
327 #define	CSSTS		0x1000	/* b12: complete-split status */
328 #define	SUREQCLR	0x0800	/* b11: stop setup request */
329 #define	SQCLR		0x0100	/* b8: Sequence toggle bit clear */
330 #define	SQSET		0x0080	/* b7: Sequence toggle bit set */
331 #define	SQMON		0x0040	/* b6: Sequence toggle bit monitor */
332 #define	PBUSY		0x0020	/* b5: pipe busy */
333 #define	PINGE		0x0010	/* b4: ping enable */
334 #define	CCPL		0x0004	/* b2: Enable control transfer complete */
335 #define	PID		0x0003	/* b1-0: Response PID */
336 #define	  PID_STALL11	 0x0003	  /* STALL */
337 #define	  PID_STALL	 0x0002	  /* STALL */
338 #define	  PID_BUF	 0x0001	  /* BUF */
339 #define	  PID_NAK	 0x0000	  /* NAK */
340 
341 /* Pipe Window Select Register */
342 #define	PIPENM		0x0007	/* b2-0: Pipe select */
343 
344 /* Pipe Configuration Register */
345 #define	R8A66597_TYP	0xC000	/* b15-14: Transfer type */
346 #define	  R8A66597_ISO	 0xC000		  /* Isochronous */
347 #define	  R8A66597_INT	 0x8000		  /* Interrupt */
348 #define	  R8A66597_BULK	 0x4000		  /* Bulk */
349 #define	R8A66597_BFRE	0x0400	/* b10: Buffer ready interrupt mode select */
350 #define	R8A66597_DBLB	0x0200	/* b9: Double buffer mode select */
351 #define	R8A66597_CNTMD	0x0100	/* b8: Continuous transfer mode select */
352 #define	R8A66597_SHTNAK	0x0080	/* b7: Transfer end NAK */
353 #define	R8A66597_DIR	0x0010	/* b4: Transfer direction select */
354 #define	R8A66597_EPNUM	0x000F	/* b3-0: Eendpoint number select */
355 
356 /* Pipe Buffer Configuration Register */
357 #define	BUFSIZE		0x7C00	/* b14-10: Pipe buffer size */
358 #define	BUFNMB		0x007F	/* b6-0: Pipe buffer number */
359 #define	PIPE0BUF	256
360 #define	PIPExBUF	64
361 
362 /* Pipe Maxpacket Size Register */
363 #define	MXPS		0x07FF	/* b10-0: Maxpacket size */
364 
365 /* Pipe Cycle Configuration Register */
366 #define	IFIS	0x1000	/* b12: Isochronous in-buffer flush mode select */
367 #define	IITV	0x0007	/* b2-0: Isochronous interval */
368 
369 /* Pipex Control Register */
370 #define	BSTS	0x8000	/* b15: Buffer status */
371 #define	INBUFM	0x4000	/* b14: IN buffer monitor (Only for PIPE1 to 5) */
372 #define	CSCLR	0x2000	/* b13: complete-split status clear */
373 #define	CSSTS	0x1000	/* b12: complete-split status */
374 #define	ATREPM	0x0400	/* b10: Auto repeat mode */
375 #define	ACLRM	0x0200	/* b9: Out buffer auto clear mode */
376 #define	SQCLR	0x0100	/* b8: Sequence toggle bit clear */
377 #define	SQSET	0x0080	/* b7: Sequence toggle bit set */
378 #define	SQMON	0x0040	/* b6: Sequence toggle bit monitor */
379 #define	PBUSY	0x0020	/* b5: pipe busy */
380 #define	PID	0x0003	/* b1-0: Response PID */
381 
382 /* PIPExTRE */
383 #define	TRENB		0x0200	/* b9: Transaction counter enable */
384 #define	TRCLR		0x0100	/* b8: Transaction counter clear */
385 
386 /* PIPExTRN */
387 #define	TRNCNT		0xFFFF	/* b15-0: Transaction counter */
388 
389 /* DEVADDx */
390 #define	UPPHUB		0x7800
391 #define	HUBPORT		0x0700
392 #define	USBSPD		0x00C0
393 #define	RTPORT		0x0001
394 
395 /* Suspend Mode Register */
396 #define SUSPM		0x4000 /* b14: Suspend */
397 
398 #define R8A66597_MAX_NUM_PIPE		10
399 #define R8A66597_BUF_BSIZE		8
400 #define R8A66597_MAX_DEVICE		10
401 #if defined(CONFIG_SUPERH_ON_CHIP_R8A66597)
402 #define R8A66597_MAX_ROOT_HUB		1
403 #else
404 #define R8A66597_MAX_ROOT_HUB		2
405 #endif
406 #define R8A66597_MAX_SAMPLING		5
407 #define R8A66597_RH_POLL_TIME		10
408 
409 #define BULK_IN_PIPENUM		3
410 #define BULK_IN_BUFNUM		8
411 
412 #define BULK_OUT_PIPENUM	4
413 #define BULK_OUT_BUFNUM		40
414 
415 #define check_bulk_or_isoc(pipenum)	((pipenum >= 1 && pipenum <= 5))
416 #define check_interrupt(pipenum)	((pipenum >= 6 && pipenum <= 9))
417 #define make_devsel(addr)		(addr << 12)
418 
419 struct r8a66597 {
420 	unsigned long reg;
421 	unsigned short pipe_config;	/* bit field */
422 	unsigned short port_status;
423 	unsigned short port_change;
424 	u16 speed;	/* HSMODE or FSMODE or LSMODE */
425 	unsigned char rh_devnum;
426 };
427 
428 static inline u16 r8a66597_read(struct r8a66597 *r8a66597, unsigned long offset)
429 {
430 	return inw(r8a66597->reg + offset);
431 }
432 
433 static inline void r8a66597_read_fifo(struct r8a66597 *r8a66597,
434 				      unsigned long offset, void *buf,
435 				      int len)
436 {
437 	int i;
438 #if defined(CONFIG_SUPERH_ON_CHIP_R8A66597) || defined(CONFIG_RZA_USB)
439 	unsigned long fifoaddr = r8a66597->reg + offset;
440 	unsigned long count;
441 	unsigned long *p = buf;
442 
443 	count = len / 4;
444 	for (i = 0; i < count; i++)
445 		p[i] = inl(r8a66597->reg + offset);
446 
447 	if (len & 0x00000003) {
448 		unsigned long tmp = inl(fifoaddr);
449 		memcpy((unsigned char *)buf + count * 4, &tmp, len & 0x03);
450 	}
451 #else
452 	unsigned short *p = buf;
453 
454 	len = (len + 1) / 2;
455 	for (i = 0; i < len; i++)
456 		p[i] = inw(r8a66597->reg + offset);
457 #endif
458 }
459 
460 static inline void r8a66597_write(struct r8a66597 *r8a66597, u16 val,
461 				  unsigned long offset)
462 {
463 	outw(val, r8a66597->reg + offset);
464 }
465 
466 static inline void r8a66597_write_fifo(struct r8a66597 *r8a66597,
467 				       unsigned long offset, void *buf,
468 				       int len)
469 {
470 	int i;
471 	unsigned long fifoaddr = r8a66597->reg + offset;
472 #if defined(CONFIG_SUPERH_ON_CHIP_R8A66597) || defined(CONFIG_RZA_USB)
473 	unsigned long count;
474 	unsigned char *pb;
475 	unsigned long *p = buf;
476 
477 	count = len / 4;
478 	for (i = 0; i < count; i++)
479 		outl(p[i], fifoaddr);
480 
481 	if (len & 0x00000003) {
482 		pb = (unsigned char *)buf + count * 4;
483 		for (i = 0; i < (len & 0x00000003); i++) {
484 			if (r8a66597_read(r8a66597, CFIFOSEL) & BIGEND)
485 				outb(pb[i], fifoaddr + i);
486 			else
487 				outb(pb[i], fifoaddr + 3 - i);
488 		}
489 	}
490 #else
491 	int odd = len & 0x0001;
492 	unsigned short *p = buf;
493 
494 	len = len / 2;
495 	for (i = 0; i < len; i++)
496 		outw(p[i], fifoaddr);
497 
498 	if (odd) {
499 		unsigned char *pb = (unsigned char *)(buf + len);
500 		outb(*pb, fifoaddr);
501 	}
502 #endif
503 }
504 
505 static inline void r8a66597_mdfy(struct r8a66597 *r8a66597,
506 				 u16 val, u16 pat, unsigned long offset)
507 {
508 	u16 tmp;
509 	tmp = r8a66597_read(r8a66597, offset);
510 	tmp = tmp & (~pat);
511 	tmp = tmp | val;
512 	r8a66597_write(r8a66597, tmp, offset);
513 }
514 
515 #define r8a66597_bclr(r8a66597, val, offset)	\
516 			r8a66597_mdfy(r8a66597, 0, val, offset)
517 #define r8a66597_bset(r8a66597, val, offset)	\
518 			r8a66597_mdfy(r8a66597, val, 0, offset)
519 
520 static inline unsigned long get_syscfg_reg(int port)
521 {
522 	return port == 0 ? SYSCFG0 : SYSCFG1;
523 }
524 
525 static inline unsigned long get_syssts_reg(int port)
526 {
527 	return port == 0 ? SYSSTS0 : SYSSTS1;
528 }
529 
530 static inline unsigned long get_dvstctr_reg(int port)
531 {
532 	return port == 0 ? DVSTCTR0 : DVSTCTR1;
533 }
534 
535 static inline unsigned long get_dmacfg_reg(int port)
536 {
537 	return port == 0 ? DMA0CFG : DMA1CFG;
538 }
539 
540 static inline unsigned long get_intenb_reg(int port)
541 {
542 	return port == 0 ? INTENB1 : INTENB2;
543 }
544 
545 static inline unsigned long get_intsts_reg(int port)
546 {
547 	return port == 0 ? INTSTS1 : INTSTS2;
548 }
549 
550 static inline u16 get_rh_usb_speed(struct r8a66597 *r8a66597, int port)
551 {
552 	unsigned long dvstctr_reg = get_dvstctr_reg(port);
553 
554 	return r8a66597_read(r8a66597, dvstctr_reg) & RHST;
555 }
556 
557 static inline void r8a66597_port_power(struct r8a66597 *r8a66597, int port,
558 				       int power)
559 {
560 	unsigned long dvstctr_reg = get_dvstctr_reg(port);
561 
562 	if (power)
563 		r8a66597_bset(r8a66597, VBOUT, dvstctr_reg);
564 	else
565 		r8a66597_bclr(r8a66597, VBOUT, dvstctr_reg);
566 }
567 
568 #define get_pipectr_addr(pipenum)	(PIPE1CTR + (pipenum - 1) * 2)
569 #define get_pipetre_addr(pipenum)	(PIPE1TRE + (pipenum - 1) * 4)
570 #define get_pipetrn_addr(pipenum)	(PIPE1TRN + (pipenum - 1) * 4)
571 #define get_devadd_addr(address)	(DEVADD0 + address * 2)
572 
573 
574 /* USB HUB CONSTANTS (not OHCI-specific; see hub.h, based on usb_ohci.h) */
575 
576 /* destination of request */
577 #define RH_INTERFACE		   0x01
578 #define RH_ENDPOINT		   0x02
579 #define RH_OTHER		   0x03
580 
581 #define RH_CLASS		   0x20
582 #define RH_VENDOR		   0x40
583 
584 /* Requests: bRequest << 8 | bmRequestType */
585 #define RH_GET_STATUS		0x0080
586 #define RH_CLEAR_FEATURE	0x0100
587 #define RH_SET_FEATURE		0x0300
588 #define RH_SET_ADDRESS		0x0500
589 #define RH_GET_DESCRIPTOR	0x0680
590 #define RH_SET_DESCRIPTOR	0x0700
591 #define RH_GET_CONFIGURATION	0x0880
592 #define RH_SET_CONFIGURATION	0x0900
593 #define RH_GET_STATE		0x0280
594 #define RH_GET_INTERFACE	0x0A80
595 #define RH_SET_INTERFACE	0x0B00
596 #define RH_SYNC_FRAME		0x0C80
597 /* Our Vendor Specific Request */
598 #define RH_SET_EP		0x2000
599 
600 /* Hub port features */
601 #define RH_PORT_CONNECTION	   0x00
602 #define RH_PORT_ENABLE		   0x01
603 #define RH_PORT_SUSPEND		   0x02
604 #define RH_PORT_OVER_CURRENT	   0x03
605 #define RH_PORT_RESET		   0x04
606 #define RH_PORT_POWER		   0x08
607 #define RH_PORT_LOW_SPEED	   0x09
608 
609 #define RH_C_PORT_CONNECTION	   0x10
610 #define RH_C_PORT_ENABLE	   0x11
611 #define RH_C_PORT_SUSPEND	   0x12
612 #define RH_C_PORT_OVER_CURRENT	   0x13
613 #define RH_C_PORT_RESET		   0x14
614 
615 /* Hub features */
616 #define RH_C_HUB_LOCAL_POWER	   0x00
617 #define RH_C_HUB_OVER_CURRENT	   0x01
618 
619 #define RH_DEVICE_REMOTE_WAKEUP	   0x00
620 #define RH_ENDPOINT_STALL	   0x01
621 
622 #define RH_ACK			   0x01
623 #define RH_REQ_ERR		   -1
624 #define RH_NACK			   0x00
625 
626 /* OHCI ROOT HUB REGISTER MASKS */
627 
628 /* roothub.portstatus [i] bits */
629 #define RH_PS_CCS	0x00000001	/* current connect status */
630 #define RH_PS_PES	0x00000002	/* port enable status*/
631 #define RH_PS_PSS	0x00000004	/* port suspend status */
632 #define RH_PS_POCI	0x00000008	/* port over current indicator */
633 #define RH_PS_PRS	0x00000010	/* port reset status */
634 #define RH_PS_PPS	0x00000100	/* port power status */
635 #define RH_PS_LSDA	0x00000200	/* low speed device attached */
636 #define RH_PS_CSC	0x00010000	/* connect status change */
637 #define RH_PS_PESC	0x00020000	/* port enable status change */
638 #define RH_PS_PSSC	0x00040000	/* port suspend status change */
639 #define RH_PS_OCIC	0x00080000	/* over current indicator change */
640 #define RH_PS_PRSC	0x00100000	/* port reset status change */
641 
642 /* roothub.status bits */
643 #define RH_HS_LPS	0x00000001	/* local power status */
644 #define RH_HS_OCI	0x00000002	/* over current indicator */
645 #define RH_HS_DRWE	0x00008000	/* device remote wakeup enable */
646 #define RH_HS_LPSC	0x00010000	/* local power status change */
647 #define RH_HS_OCIC	0x00020000	/* over current indicator change */
648 #define RH_HS_CRWE	0x80000000	/* clear remote wakeup enable */
649 
650 /* roothub.b masks */
651 #define RH_B_DR		0x0000ffff	/* device removable flags */
652 #define RH_B_PPCM	0xffff0000	/* port power control mask */
653 
654 /* roothub.a masks */
655 #define RH_A_NDP	(0xff << 0)	/* number of downstream ports */
656 #define RH_A_PSM	(1 << 8)	/* power switching mode */
657 #define RH_A_NPS	(1 << 9)	/* no power switching */
658 #define RH_A_DT		(1 << 10)	/* device type (mbz) */
659 #define RH_A_OCPM	(1 << 11)	/* over current protection mode */
660 #define RH_A_NOCP	(1 << 12)	/* no over current protection */
661 #define RH_A_POTPGT	(0xff << 24)	/* power on to power good time */
662 
663 #endif	/* __R8A66597_H__ */
664