drivers/usb/musb/musb_regs.h

   1 // SPDX-License-Identifier: GPL-2.0
   2 /*
   3  * MUSB OTG driver register defines
   4  *
   5  * Copyright 2005 Mentor Graphics Corporation
   6  * Copyright (C) 2005-2006 by Texas Instruments
   7  * Copyright (C) 2006-2007 Nokia Corporation
   8  */
   9
  10 #ifndef __MUSB_REGS_H__
  11 #define __MUSB_REGS_H__
  12
  13 #define MUSB_EP0_FIFOSIZE       64      /* This is non-configurable */
  14
  15 /*
  16  * MUSB Register bits
  17  */
  18
  19 /* POWER */
  20 #define MUSB_POWER_ISOUPDATE    0x80
  21 #define MUSB_POWER_SOFTCONN     0x40
  22 #define MUSB_POWER_HSENAB       0x20
  23 #define MUSB_POWER_HSMODE       0x10
  24 #define MUSB_POWER_RESET        0x08
  25 #define MUSB_POWER_RESUME       0x04
  26 #define MUSB_POWER_SUSPENDM     0x02
  27 #define MUSB_POWER_ENSUSPEND    0x01
  28
  29 /* INTRUSB */
  30 #define MUSB_INTR_SUSPEND       0x01
  31 #define MUSB_INTR_RESUME        0x02
  32 #define MUSB_INTR_RESET         0x04
  33 #define MUSB_INTR_BABBLE        0x04
  34 #define MUSB_INTR_SOF           0x08
  35 #define MUSB_INTR_CONNECT       0x10
  36 #define MUSB_INTR_DISCONNECT    0x20
  37 #define MUSB_INTR_SESSREQ       0x40
  38 #define MUSB_INTR_VBUSERROR     0x80    /* For SESSION end */
  39
  40 /* DEVCTL */
  41 #define MUSB_DEVCTL_BDEVICE     0x80
  42 #define MUSB_DEVCTL_FSDEV       0x40
  43 #define MUSB_DEVCTL_LSDEV       0x20
  44 #define MUSB_DEVCTL_VBUS        0x18
  45 #define MUSB_DEVCTL_VBUS_SHIFT  3
  46 #define MUSB_DEVCTL_HM          0x04
  47 #define MUSB_DEVCTL_HR          0x02
  48 #define MUSB_DEVCTL_SESSION     0x01
  49
  50 /* BABBLE_CTL */
  51 #define MUSB_BABBLE_FORCE_TXIDLE        0x80
  52 #define MUSB_BABBLE_SW_SESSION_CTRL     0x40
  53 #define MUSB_BABBLE_STUCK_J             0x20
  54 #define MUSB_BABBLE_RCV_DISABLE         0x04
  55
  56 /* MUSB ULPI VBUSCONTROL */
  57 #define MUSB_ULPI_USE_EXTVBUS   0x01
  58 #define MUSB_ULPI_USE_EXTVBUSIND 0x02
  59 /* ULPI_REG_CONTROL */
  60 #define MUSB_ULPI_REG_REQ       (1 << 0)
  61 #define MUSB_ULPI_REG_CMPLT     (1 << 1)
  62 #define MUSB_ULPI_RDN_WR        (1 << 2)
  63
  64 /* TESTMODE */
  65 #define MUSB_TEST_FORCE_HOST    0x80
  66 #define MUSB_TEST_FIFO_ACCESS   0x40
  67 #define MUSB_TEST_FORCE_FS      0x20
  68 #define MUSB_TEST_FORCE_HS      0x10
  69 #define MUSB_TEST_PACKET        0x08
  70 #define MUSB_TEST_K             0x04
  71 #define MUSB_TEST_J             0x02
  72 #define MUSB_TEST_SE0_NAK       0x01
  73
  74 /* Allocate for double-packet buffering (effectively doubles assigned _SIZE) */
  75 #define MUSB_FIFOSZ_DPB 0x10
  76 /* Allocation size (8, 16, 32, ... 4096) */
  77 #define MUSB_FIFOSZ_SIZE        0x0f
  78
  79 /* CSR0 */
  80 #define MUSB_CSR0_FLUSHFIFO     0x0100
  81 #define MUSB_CSR0_TXPKTRDY      0x0002
  82 #define MUSB_CSR0_RXPKTRDY      0x0001
  83
  84 /* CSR0 in Peripheral mode */
  85 #define MUSB_CSR0_P_SVDSETUPEND 0x0080
  86 #define MUSB_CSR0_P_SVDRXPKTRDY 0x0040
  87 #define MUSB_CSR0_P_SENDSTALL   0x0020
  88 #define MUSB_CSR0_P_SETUPEND    0x0010
  89 #define MUSB_CSR0_P_DATAEND     0x0008
  90 #define MUSB_CSR0_P_SENTSTALL   0x0004
  91
  92 /* CSR0 in Host mode */
  93 #define MUSB_CSR0_H_DIS_PING            0x0800
  94 #define MUSB_CSR0_H_WR_DATATOGGLE       0x0400  /* Set to allow setting: */
  95 #define MUSB_CSR0_H_DATATOGGLE          0x0200  /* Data toggle control */
  96 #define MUSB_CSR0_H_NAKTIMEOUT          0x0080
  97 #define MUSB_CSR0_H_STATUSPKT           0x0040
  98 #define MUSB_CSR0_H_REQPKT              0x0020
  99 #define MUSB_CSR0_H_ERROR               0x0010
 100 #define MUSB_CSR0_H_SETUPPKT            0x0008
 101 #define MUSB_CSR0_H_RXSTALL             0x0004
 102
 103 /* CSR0 bits to avoid zeroing (write zero clears, write 1 ignored) */
 104 #define MUSB_CSR0_P_WZC_BITS    \
 105         (MUSB_CSR0_P_SENTSTALL)
 106 #define MUSB_CSR0_H_WZC_BITS    \
 107         (MUSB_CSR0_H_NAKTIMEOUT | MUSB_CSR0_H_RXSTALL \
 108         | MUSB_CSR0_RXPKTRDY)
 109
 110 /* TxType/RxType */
 111 #define MUSB_TYPE_SPEED         0xc0
 112 #define MUSB_TYPE_SPEED_SHIFT   6
 113 #define MUSB_TYPE_PROTO         0x30    /* Implicitly zero for ep0 */
 114 #define MUSB_TYPE_PROTO_SHIFT   4
 115 #define MUSB_TYPE_REMOTE_END    0xf     /* Implicitly zero for ep0 */
 116
 117 /* CONFIGDATA */
 118 #define MUSB_CONFIGDATA_MPRXE           0x80    /* Auto bulk pkt combining */
 119 #define MUSB_CONFIGDATA_MPTXE           0x40    /* Auto bulk pkt splitting */
 120 #define MUSB_CONFIGDATA_BIGENDIAN       0x20
 121 #define MUSB_CONFIGDATA_HBRXE           0x10    /* HB-ISO for RX */
 122 #define MUSB_CONFIGDATA_HBTXE           0x08    /* HB-ISO for TX */
 123 #define MUSB_CONFIGDATA_DYNFIFO         0x04    /* Dynamic FIFO sizing */
 124 #define MUSB_CONFIGDATA_SOFTCONE        0x02    /* SoftConnect */
 125 #define MUSB_CONFIGDATA_UTMIDW          0x01    /* Data width 0/1 => 8/16bits */
 126
 127 /* TXCSR in Peripheral and Host mode */
 128 #define MUSB_TXCSR_AUTOSET              0x8000
 129 #define MUSB_TXCSR_DMAENAB              0x1000
 130 #define MUSB_TXCSR_FRCDATATOG           0x0800
 131 #define MUSB_TXCSR_DMAMODE              0x0400
 132 #define MUSB_TXCSR_CLRDATATOG           0x0040
 133 #define MUSB_TXCSR_FLUSHFIFO            0x0008
 134 #define MUSB_TXCSR_FIFONOTEMPTY         0x0002
 135 #define MUSB_TXCSR_TXPKTRDY             0x0001
 136
 137 /* TXCSR in Peripheral mode */
 138 #define MUSB_TXCSR_P_ISO                0x4000
 139 #define MUSB_TXCSR_P_INCOMPTX           0x0080
 140 #define MUSB_TXCSR_P_SENTSTALL          0x0020
 141 #define MUSB_TXCSR_P_SENDSTALL          0x0010
 142 #define MUSB_TXCSR_P_UNDERRUN           0x0004
 143
 144 /* TXCSR in Host mode */
 145 #define MUSB_TXCSR_H_WR_DATATOGGLE      0x0200
 146 #define MUSB_TXCSR_H_DATATOGGLE         0x0100
 147 #define MUSB_TXCSR_H_NAKTIMEOUT         0x0080
 148 #define MUSB_TXCSR_H_RXSTALL            0x0020
 149 #define MUSB_TXCSR_H_ERROR              0x0004
 150
 151 /* TXCSR bits to avoid zeroing (write zero clears, write 1 ignored) */
 152 #define MUSB_TXCSR_P_WZC_BITS   \
 153         (MUSB_TXCSR_P_INCOMPTX | MUSB_TXCSR_P_SENTSTALL \
 154         | MUSB_TXCSR_P_UNDERRUN | MUSB_TXCSR_FIFONOTEMPTY)
 155 #define MUSB_TXCSR_H_WZC_BITS   \
 156         (MUSB_TXCSR_H_NAKTIMEOUT | MUSB_TXCSR_H_RXSTALL \
 157         | MUSB_TXCSR_H_ERROR | MUSB_TXCSR_FIFONOTEMPTY)
 158
 159 /* RXCSR in Peripheral and Host mode */
 160 #define MUSB_RXCSR_AUTOCLEAR            0x8000
 161 #define MUSB_RXCSR_DMAENAB              0x2000
 162 #define MUSB_RXCSR_DISNYET              0x1000
 163 #define MUSB_RXCSR_PID_ERR              0x1000
 164 #define MUSB_RXCSR_DMAMODE              0x0800
 165 #define MUSB_RXCSR_INCOMPRX             0x0100
 166 #define MUSB_RXCSR_CLRDATATOG           0x0080
 167 #define MUSB_RXCSR_FLUSHFIFO            0x0010
 168 #define MUSB_RXCSR_DATAERROR            0x0008
 169 #define MUSB_RXCSR_FIFOFULL             0x0002
 170 #define MUSB_RXCSR_RXPKTRDY             0x0001
 171
 172 /* RXCSR in Peripheral mode */
 173 #define MUSB_RXCSR_P_ISO                0x4000
 174 #define MUSB_RXCSR_P_SENTSTALL          0x0040
 175 #define MUSB_RXCSR_P_SENDSTALL          0x0020
 176 #define MUSB_RXCSR_P_OVERRUN            0x0004
 177
 178 /* RXCSR in Host mode */
 179 #define MUSB_RXCSR_H_AUTOREQ            0x4000
 180 #define MUSB_RXCSR_H_WR_DATATOGGLE      0x0400
 181 #define MUSB_RXCSR_H_DATATOGGLE         0x0200
 182 #define MUSB_RXCSR_H_RXSTALL            0x0040
 183 #define MUSB_RXCSR_H_REQPKT             0x0020
 184 #define MUSB_RXCSR_H_ERROR              0x0004
 185
 186 /* RXCSR bits to avoid zeroing (write zero clears, write 1 ignored) */
 187 #define MUSB_RXCSR_P_WZC_BITS   \
 188         (MUSB_RXCSR_P_SENTSTALL | MUSB_RXCSR_P_OVERRUN \
 189         | MUSB_RXCSR_RXPKTRDY)
 190 #define MUSB_RXCSR_H_WZC_BITS   \
 191         (MUSB_RXCSR_H_RXSTALL | MUSB_RXCSR_H_ERROR \
 192         | MUSB_RXCSR_DATAERROR | MUSB_RXCSR_RXPKTRDY)
 193
 194 /* HUBADDR */
 195 #define MUSB_HUBADDR_MULTI_TT           0x80
 196
 197
 198 /*
 199  * Common USB registers
 200  */
 201
 202 #define MUSB_FADDR              0x00    /* 8-bit */
 203 #define MUSB_POWER              0x01    /* 8-bit */
 204
 205 #define MUSB_INTRTX             0x02    /* 16-bit */
 206 #define MUSB_INTRRX             0x04
 207 #define MUSB_INTRTXE            0x06
 208 #define MUSB_INTRRXE            0x08
 209 #define MUSB_INTRUSB            0x0A    /* 8 bit */
 210 #define MUSB_INTRUSBE           0x0B    /* 8 bit */
 211 #define MUSB_FRAME              0x0C
 212 #define MUSB_INDEX              0x0E    /* 8 bit */
 213 #define MUSB_TESTMODE           0x0F    /* 8 bit */
 214
 215 /*
 216  * Additional Control Registers
 217  */
 218
 219 #define MUSB_DEVCTL             0x60    /* 8 bit */
 220 #define MUSB_BABBLE_CTL         0x61    /* 8 bit */
 221
 222 /* These are always controlled through the INDEX register */
 223 #define MUSB_TXFIFOSZ           0x62    /* 8-bit (see masks) */
 224 #define MUSB_RXFIFOSZ           0x63    /* 8-bit (see masks) */
 225 #define MUSB_TXFIFOADD          0x64    /* 16-bit offset shifted right 3 */
 226 #define MUSB_RXFIFOADD          0x66    /* 16-bit offset shifted right 3 */
 227
 228 /* REVISIT: vctrl/vstatus: optional vendor utmi+phy register at 0x68 */
 229 #define MUSB_HWVERS             0x6C    /* 8 bit */
 230 #define MUSB_ULPI_BUSCONTROL    0x70    /* 8 bit */
 231 #define MUSB_ULPI_INT_MASK      0x72    /* 8 bit */
 232 #define MUSB_ULPI_INT_SRC       0x73    /* 8 bit */
 233 #define MUSB_ULPI_REG_DATA      0x74    /* 8 bit */
 234 #define MUSB_ULPI_REG_ADDR      0x75    /* 8 bit */
 235 #define MUSB_ULPI_REG_CONTROL   0x76    /* 8 bit */
 236 #define MUSB_ULPI_RAW_DATA      0x77    /* 8 bit */
 237
 238 #define MUSB_EPINFO             0x78    /* 8 bit */
 239 #define MUSB_RAMINFO            0x79    /* 8 bit */
 240 #define MUSB_LINKINFO           0x7a    /* 8 bit */
 241 #define MUSB_VPLEN              0x7b    /* 8 bit */
 242 #define MUSB_HS_EOF1            0x7c    /* 8 bit */
 243 #define MUSB_FS_EOF1            0x7d    /* 8 bit */
 244 #define MUSB_LS_EOF1            0x7e    /* 8 bit */
 245
 246 /* Offsets to endpoint registers */
 247 #define MUSB_TXMAXP             0x00
 248 #define MUSB_TXCSR              0x02
 249 #define MUSB_CSR0               MUSB_TXCSR      /* Re-used for EP0 */
 250 #define MUSB_RXMAXP             0x04
 251 #define MUSB_RXCSR              0x06
 252 #define MUSB_RXCOUNT            0x08
 253 #define MUSB_COUNT0             MUSB_RXCOUNT    /* Re-used for EP0 */
 254 #define MUSB_TXTYPE             0x0A
 255 #define MUSB_TYPE0              MUSB_TXTYPE     /* Re-used for EP0 */
 256 #define MUSB_TXINTERVAL         0x0B
 257 #define MUSB_NAKLIMIT0          MUSB_TXINTERVAL /* Re-used for EP0 */
 258 #define MUSB_RXTYPE             0x0C
 259 #define MUSB_RXINTERVAL         0x0D
 260 #define MUSB_FIFOSIZE           0x0F
 261 #define MUSB_CONFIGDATA         MUSB_FIFOSIZE   /* Re-used for EP0 */
 262
 263 #include "tusb6010.h"           /* Needed "only" for TUSB_EP0_CONF */
 264
 265 #define MUSB_TXCSR_MODE                 0x2000
 266
 267 /* "bus control"/target registers, for host side multipoint (external hubs) */
 268 #define MUSB_TXFUNCADDR         0x00
 269 #define MUSB_TXHUBADDR          0x02
 270 #define MUSB_TXHUBPORT          0x03
 271
 272 #define MUSB_RXFUNCADDR         0x04
 273 #define MUSB_RXHUBADDR          0x06
 274 #define MUSB_RXHUBPORT          0x07
 275
 276 static inline u8 musb_read_configdata(void __iomem *mbase)
 277 {
 278         musb_writeb(mbase, MUSB_INDEX, 0);
 279         return musb_readb(mbase, 0x10 + MUSB_CONFIGDATA);
 280 }
 281
 282 static inline void musb_write_rxfunaddr(struct musb *musb, u8 epnum,
 283                 u8 qh_addr_reg)
 284 {
 285         musb_writeb(musb->mregs,
 286                     musb->io.busctl_offset(epnum, MUSB_RXFUNCADDR),
 287                     qh_addr_reg);
 288 }
 289
 290 static inline void musb_write_rxhubaddr(struct musb *musb, u8 epnum,
 291                 u8 qh_h_addr_reg)
 292 {
 293         musb_writeb(musb->mregs, musb->io.busctl_offset(epnum, MUSB_RXHUBADDR),
 294                         qh_h_addr_reg);
 295 }
 296
 297 static inline void musb_write_rxhubport(struct musb *musb, u8 epnum,
 298                 u8 qh_h_port_reg)
 299 {
 300         musb_writeb(musb->mregs, musb->io.busctl_offset(epnum, MUSB_RXHUBPORT),
 301                         qh_h_port_reg);
 302 }
 303
 304 static inline void musb_write_txfunaddr(struct musb *musb, u8 epnum,
 305                 u8 qh_addr_reg)
 306 {
 307         musb_writeb(musb->mregs,
 308                     musb->io.busctl_offset(epnum, MUSB_TXFUNCADDR),
 309                     qh_addr_reg);
 310 }
 311
 312 static inline void musb_write_txhubaddr(struct musb *musb, u8 epnum,
 313                 u8 qh_addr_reg)
 314 {
 315         musb_writeb(musb->mregs, musb->io.busctl_offset(epnum, MUSB_TXHUBADDR),
 316                         qh_addr_reg);
 317 }
 318
 319 static inline void musb_write_txhubport(struct musb *musb, u8 epnum,
 320                 u8 qh_h_port_reg)
 321 {
 322         musb_writeb(musb->mregs, musb->io.busctl_offset(epnum, MUSB_TXHUBPORT),
 323                         qh_h_port_reg);
 324 }
 325
 326 static inline u8 musb_read_rxfunaddr(struct musb *musb, u8 epnum)
 327 {
 328         return musb_readb(musb->mregs,
 329                           musb->io.busctl_offset(epnum, MUSB_RXFUNCADDR));
 330 }
 331
 332 static inline u8 musb_read_rxhubaddr(struct musb *musb, u8 epnum)
 333 {
 334         return musb_readb(musb->mregs,
 335                           musb->io.busctl_offset(epnum, MUSB_RXHUBADDR));
 336 }
 337
 338 static inline u8 musb_read_rxhubport(struct musb *musb, u8 epnum)
 339 {
 340         return musb_readb(musb->mregs,
 341                           musb->io.busctl_offset(epnum, MUSB_RXHUBPORT));
 342 }
 343
 344 static inline u8 musb_read_txfunaddr(struct musb *musb, u8 epnum)
 345 {
 346         return musb_readb(musb->mregs,
 347                           musb->io.busctl_offset(epnum, MUSB_TXFUNCADDR));
 348 }
 349
 350 static inline u8 musb_read_txhubaddr(struct musb *musb, u8 epnum)
 351 {
 352         return musb_readb(musb->mregs,
 353                           musb->io.busctl_offset(epnum, MUSB_TXHUBADDR));
 354 }
 355
 356 static inline u8 musb_read_txhubport(struct musb *musb, u8 epnum)
 357 {
 358         return musb_readb(musb->mregs,
 359                           musb->io.busctl_offset(epnum, MUSB_TXHUBPORT));
 360 }
 361
 362 #endif  /* __MUSB_REGS_H__ */