1 /* 2 * ti113x.h 1.16 1999/10/25 20:03:34 3 * 4 * The contents of this file are subject to the Mozilla Public License 5 * Version 1.1 (the "License"); you may not use this file except in 6 * compliance with the License. You may obtain a copy of the License 7 * at http://www.mozilla.org/MPL/ 8 * 9 * Software distributed under the License is distributed on an "AS IS" 10 * basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See 11 * the License for the specific language governing rights and 12 * limitations under the License. 13 * 14 * The initial developer of the original code is David A. Hinds 15 * <dahinds@users.sourceforge.net>. Portions created by David A. Hinds 16 * are Copyright (C) 1999 David A. Hinds. All Rights Reserved. 17 * 18 * Alternatively, the contents of this file may be used under the 19 * terms of the GNU General Public License version 2 (the "GPL"), in which 20 * case the provisions of the GPL are applicable instead of the 21 * above. If you wish to allow the use of your version of this file 22 * only under the terms of the GPL and not to allow others to use 23 * your version of this file under the MPL, indicate your decision by 24 * deleting the provisions above and replace them with the notice and 25 * other provisions required by the GPL. If you do not delete the 26 * provisions above, a recipient may use your version of this file 27 * under either the MPL or the GPL. 28 */ 29 30 #ifndef _LINUX_TI113X_H 31 #define _LINUX_TI113X_H 32 33 34 /* Register definitions for TI 113X PCI-to-CardBus bridges */ 35 36 /* System Control Register */ 37 #define TI113X_SYSTEM_CONTROL 0x0080 /* 32 bit */ 38 #define TI113X_SCR_SMIROUTE 0x04000000 39 #define TI113X_SCR_SMISTATUS 0x02000000 40 #define TI113X_SCR_SMIENB 0x01000000 41 #define TI113X_SCR_VCCPROT 0x00200000 42 #define TI113X_SCR_REDUCEZV 0x00100000 43 #define TI113X_SCR_CDREQEN 0x00080000 44 #define TI113X_SCR_CDMACHAN 0x00070000 45 #define TI113X_SCR_SOCACTIVE 0x00002000 46 #define TI113X_SCR_PWRSTREAM 0x00000800 47 #define TI113X_SCR_DELAYUP 0x00000400 48 #define TI113X_SCR_DELAYDOWN 0x00000200 49 #define TI113X_SCR_INTERROGATE 0x00000100 50 #define TI113X_SCR_CLKRUN_SEL 0x00000080 51 #define TI113X_SCR_PWRSAVINGS 0x00000040 52 #define TI113X_SCR_SUBSYSRW 0x00000020 53 #define TI113X_SCR_CB_DPAR 0x00000010 54 #define TI113X_SCR_CDMA_EN 0x00000008 55 #define TI113X_SCR_ASYNC_IRQ 0x00000004 56 #define TI113X_SCR_KEEPCLK 0x00000002 57 #define TI113X_SCR_CLKRUN_ENA 0x00000001 58 59 #define TI122X_SCR_SER_STEP 0xc0000000 60 #define TI122X_SCR_INTRTIE 0x20000000 61 #define TIXX21_SCR_TIEALL 0x10000000 62 #define TI122X_SCR_CBRSVD 0x00400000 63 #define TI122X_SCR_MRBURSTDN 0x00008000 64 #define TI122X_SCR_MRBURSTUP 0x00004000 65 #define TI122X_SCR_RIMUX 0x00000001 66 67 /* Multimedia Control Register */ 68 #define TI1250_MULTIMEDIA_CTL 0x0084 /* 8 bit */ 69 #define TI1250_MMC_ZVOUTEN 0x80 70 #define TI1250_MMC_PORTSEL 0x40 71 #define TI1250_MMC_ZVEN1 0x02 72 #define TI1250_MMC_ZVEN0 0x01 73 74 #define TI1250_GENERAL_STATUS 0x0085 /* 8 bit */ 75 #define TI1250_GPIO0_CONTROL 0x0088 /* 8 bit */ 76 #define TI1250_GPIO1_CONTROL 0x0089 /* 8 bit */ 77 #define TI1250_GPIO2_CONTROL 0x008a /* 8 bit */ 78 #define TI1250_GPIO3_CONTROL 0x008b /* 8 bit */ 79 #define TI1250_GPIO_MODE_MASK 0xc0 80 81 /* IRQMUX/MFUNC Register */ 82 #define TI122X_MFUNC 0x008c /* 32 bit */ 83 #define TI122X_MFUNC0_MASK 0x0000000f 84 #define TI122X_MFUNC1_MASK 0x000000f0 85 #define TI122X_MFUNC2_MASK 0x00000f00 86 #define TI122X_MFUNC3_MASK 0x0000f000 87 #define TI122X_MFUNC4_MASK 0x000f0000 88 #define TI122X_MFUNC5_MASK 0x00f00000 89 #define TI122X_MFUNC6_MASK 0x0f000000 90 91 #define TI122X_MFUNC0_INTA 0x00000002 92 #define TI125X_MFUNC0_INTB 0x00000001 93 #define TI122X_MFUNC1_INTB 0x00000020 94 #define TI122X_MFUNC3_IRQSER 0x00001000 95 96 97 /* Retry Status Register */ 98 #define TI113X_RETRY_STATUS 0x0090 /* 8 bit */ 99 #define TI113X_RSR_PCIRETRY 0x80 100 #define TI113X_RSR_CBRETRY 0x40 101 #define TI113X_RSR_TEXP_CBB 0x20 102 #define TI113X_RSR_MEXP_CBB 0x10 103 #define TI113X_RSR_TEXP_CBA 0x08 104 #define TI113X_RSR_MEXP_CBA 0x04 105 #define TI113X_RSR_TEXP_PCI 0x02 106 #define TI113X_RSR_MEXP_PCI 0x01 107 108 /* Card Control Register */ 109 #define TI113X_CARD_CONTROL 0x0091 /* 8 bit */ 110 #define TI113X_CCR_RIENB 0x80 111 #define TI113X_CCR_ZVENABLE 0x40 112 #define TI113X_CCR_PCI_IRQ_ENA 0x20 113 #define TI113X_CCR_PCI_IREQ 0x10 114 #define TI113X_CCR_PCI_CSC 0x08 115 #define TI113X_CCR_SPKROUTEN 0x02 116 #define TI113X_CCR_IFG 0x01 117 118 #define TI1220_CCR_PORT_SEL 0x20 119 #define TI122X_CCR_AUD2MUX 0x04 120 121 /* Device Control Register */ 122 #define TI113X_DEVICE_CONTROL 0x0092 /* 8 bit */ 123 #define TI113X_DCR_5V_FORCE 0x40 124 #define TI113X_DCR_3V_FORCE 0x20 125 #define TI113X_DCR_IMODE_MASK 0x06 126 #define TI113X_DCR_IMODE_ISA 0x02 127 #define TI113X_DCR_IMODE_SERIAL 0x04 128 129 #define TI12XX_DCR_IMODE_PCI_ONLY 0x00 130 #define TI12XX_DCR_IMODE_ALL_SERIAL 0x06 131 132 /* Buffer Control Register */ 133 #define TI113X_BUFFER_CONTROL 0x0093 /* 8 bit */ 134 #define TI113X_BCR_CB_READ_DEPTH 0x08 135 #define TI113X_BCR_CB_WRITE_DEPTH 0x04 136 #define TI113X_BCR_PCI_READ_DEPTH 0x02 137 #define TI113X_BCR_PCI_WRITE_DEPTH 0x01 138 139 /* Diagnostic Register */ 140 #define TI1250_DIAGNOSTIC 0x0093 /* 8 bit */ 141 #define TI1250_DIAG_TRUE_VALUE 0x80 142 #define TI1250_DIAG_PCI_IREQ 0x40 143 #define TI1250_DIAG_PCI_CSC 0x20 144 #define TI1250_DIAG_ASYNC_CSC 0x01 145 146 /* DMA Registers */ 147 #define TI113X_DMA_0 0x0094 /* 32 bit */ 148 #define TI113X_DMA_1 0x0098 /* 32 bit */ 149 150 /* ExCA IO offset registers */ 151 #define TI113X_IO_OFFSET(map) (0x36+((map)<<1)) 152 153 /* EnE test register */ 154 #define ENE_TEST_C9 0xc9 /* 8bit */ 155 #define ENE_TEST_C9_TLTENABLE 0x02 156 #define ENE_TEST_C9_PFENABLE_F0 0x04 157 #define ENE_TEST_C9_PFENABLE_F1 0x08 158 #define ENE_TEST_C9_PFENABLE (ENE_TEST_C9_PFENABLE_F0 | ENE_TEST_C9_PFENABLE_F1) 159 #define ENE_TEST_C9_WPDISALBLE_F0 0x40 160 #define ENE_TEST_C9_WPDISALBLE_F1 0x80 161 #define ENE_TEST_C9_WPDISALBLE (ENE_TEST_C9_WPDISALBLE_F0 | ENE_TEST_C9_WPDISALBLE_F1) 162 163 /* 164 * Texas Instruments CardBus controller overrides. 165 */ 166 #define ti_sysctl(socket) ((socket)->private[0]) 167 #define ti_cardctl(socket) ((socket)->private[1]) 168 #define ti_devctl(socket) ((socket)->private[2]) 169 #define ti_diag(socket) ((socket)->private[3]) 170 #define ti_mfunc(socket) ((socket)->private[4]) 171 #define ene_test_c9(socket) ((socket)->private[5]) 172 173 /* 174 * These are the TI specific power management handlers. 175 */ 176 static void ti_save_state(struct yenta_socket *socket) 177 { 178 ti_sysctl(socket) = config_readl(socket, TI113X_SYSTEM_CONTROL); 179 ti_mfunc(socket) = config_readl(socket, TI122X_MFUNC); 180 ti_cardctl(socket) = config_readb(socket, TI113X_CARD_CONTROL); 181 ti_devctl(socket) = config_readb(socket, TI113X_DEVICE_CONTROL); 182 ti_diag(socket) = config_readb(socket, TI1250_DIAGNOSTIC); 183 184 if (socket->dev->vendor == PCI_VENDOR_ID_ENE) 185 ene_test_c9(socket) = config_readb(socket, ENE_TEST_C9); 186 } 187 188 static void ti_restore_state(struct yenta_socket *socket) 189 { 190 config_writel(socket, TI113X_SYSTEM_CONTROL, ti_sysctl(socket)); 191 config_writel(socket, TI122X_MFUNC, ti_mfunc(socket)); 192 config_writeb(socket, TI113X_CARD_CONTROL, ti_cardctl(socket)); 193 config_writeb(socket, TI113X_DEVICE_CONTROL, ti_devctl(socket)); 194 config_writeb(socket, TI1250_DIAGNOSTIC, ti_diag(socket)); 195 196 if (socket->dev->vendor == PCI_VENDOR_ID_ENE) 197 config_writeb(socket, ENE_TEST_C9, ene_test_c9(socket)); 198 } 199 200 /* 201 * Zoom video control for TI122x/113x chips 202 */ 203 204 static void ti_zoom_video(struct pcmcia_socket *sock, int onoff) 205 { 206 u8 reg; 207 struct yenta_socket *socket = container_of(sock, struct yenta_socket, socket); 208 209 /* If we don't have a Zoom Video switch this is harmless, 210 we just tristate the unused (ZV) lines */ 211 reg = config_readb(socket, TI113X_CARD_CONTROL); 212 if (onoff) 213 /* Zoom zoom, we will all go together, zoom zoom, zoom zoom */ 214 reg |= TI113X_CCR_ZVENABLE; 215 else 216 reg &= ~TI113X_CCR_ZVENABLE; 217 config_writeb(socket, TI113X_CARD_CONTROL, reg); 218 } 219 220 /* 221 * The 145x series can also use this. They have an additional 222 * ZV autodetect mode we don't use but don't actually need. 223 * FIXME: manual says its in func0 and func1 but disagrees with 224 * itself about this - do we need to force func0, if so we need 225 * to know a lot more about socket pairings in pcmcia_socket than 226 * we do now.. uggh. 227 */ 228 229 static void ti1250_zoom_video(struct pcmcia_socket *sock, int onoff) 230 { 231 struct yenta_socket *socket = container_of(sock, struct yenta_socket, socket); 232 int shift = 0; 233 u8 reg; 234 235 ti_zoom_video(sock, onoff); 236 237 reg = config_readb(socket, TI1250_MULTIMEDIA_CTL); 238 reg |= TI1250_MMC_ZVOUTEN; /* ZV bus enable */ 239 240 if(PCI_FUNC(socket->dev->devfn)==1) 241 shift = 1; 242 243 if(onoff) 244 { 245 reg &= ~(1<<6); /* Clear select bit */ 246 reg |= shift<<6; /* Favour our socket */ 247 reg |= 1<<shift; /* Socket zoom video on */ 248 } 249 else 250 { 251 reg &= ~(1<<6); /* Clear select bit */ 252 reg |= (1^shift)<<6; /* Favour other socket */ 253 reg &= ~(1<<shift); /* Socket zoon video off */ 254 } 255 256 config_writeb(socket, TI1250_MULTIMEDIA_CTL, reg); 257 } 258 259 static void ti_set_zv(struct yenta_socket *socket) 260 { 261 if(socket->dev->vendor == PCI_VENDOR_ID_TI) 262 { 263 switch(socket->dev->device) 264 { 265 /* There may be more .. */ 266 case PCI_DEVICE_ID_TI_1220: 267 case PCI_DEVICE_ID_TI_1221: 268 case PCI_DEVICE_ID_TI_1225: 269 case PCI_DEVICE_ID_TI_4510: 270 socket->socket.zoom_video = ti_zoom_video; 271 break; 272 case PCI_DEVICE_ID_TI_1250: 273 case PCI_DEVICE_ID_TI_1251A: 274 case PCI_DEVICE_ID_TI_1251B: 275 case PCI_DEVICE_ID_TI_1450: 276 socket->socket.zoom_video = ti1250_zoom_video; 277 } 278 } 279 } 280 281 282 /* 283 * Generic TI init - TI has an extension for the 284 * INTCTL register that sets the PCI CSC interrupt. 285 * Make sure we set it correctly at open and init 286 * time 287 * - override: disable the PCI CSC interrupt. This makes 288 * it possible to use the CSC interrupt to probe the 289 * ISA interrupts. 290 * - init: set the interrupt to match our PCI state. 291 * This makes us correctly get PCI CSC interrupt 292 * events. 293 */ 294 static int ti_init(struct yenta_socket *socket) 295 { 296 u8 new, reg = exca_readb(socket, I365_INTCTL); 297 298 new = reg & ~I365_INTR_ENA; 299 if (socket->dev->irq) 300 new |= I365_INTR_ENA; 301 if (new != reg) 302 exca_writeb(socket, I365_INTCTL, new); 303 return 0; 304 } 305 306 static int ti_override(struct yenta_socket *socket) 307 { 308 u8 new, reg = exca_readb(socket, I365_INTCTL); 309 310 new = reg & ~I365_INTR_ENA; 311 if (new != reg) 312 exca_writeb(socket, I365_INTCTL, new); 313 314 ti_set_zv(socket); 315 316 return 0; 317 } 318 319 static void ti113x_use_isa_irq(struct yenta_socket *socket) 320 { 321 int isa_irq = -1; 322 u8 intctl; 323 u32 isa_irq_mask = 0; 324 325 if (!isa_probe) 326 return; 327 328 /* get a free isa int */ 329 isa_irq_mask = yenta_probe_irq(socket, isa_interrupts); 330 if (!isa_irq_mask) 331 return; /* no useable isa irq found */ 332 333 /* choose highest available */ 334 for (; isa_irq_mask; isa_irq++) 335 isa_irq_mask >>= 1; 336 socket->cb_irq = isa_irq; 337 338 exca_writeb(socket, I365_CSCINT, (isa_irq << 4)); 339 340 intctl = exca_readb(socket, I365_INTCTL); 341 intctl &= ~(I365_INTR_ENA | I365_IRQ_MASK); /* CSC Enable */ 342 exca_writeb(socket, I365_INTCTL, intctl); 343 344 dev_info(&socket->dev->dev, 345 "Yenta TI113x: using isa irq %d for CardBus\n", isa_irq); 346 } 347 348 349 static int ti113x_override(struct yenta_socket *socket) 350 { 351 u8 cardctl; 352 353 cardctl = config_readb(socket, TI113X_CARD_CONTROL); 354 cardctl &= ~(TI113X_CCR_PCI_IRQ_ENA | TI113X_CCR_PCI_IREQ | TI113X_CCR_PCI_CSC); 355 if (socket->dev->irq) 356 cardctl |= TI113X_CCR_PCI_IRQ_ENA | TI113X_CCR_PCI_CSC | TI113X_CCR_PCI_IREQ; 357 else 358 ti113x_use_isa_irq(socket); 359 360 config_writeb(socket, TI113X_CARD_CONTROL, cardctl); 361 362 return ti_override(socket); 363 } 364 365 366 /* irqrouting for func0, probes PCI interrupt and ISA interrupts */ 367 static void ti12xx_irqroute_func0(struct yenta_socket *socket) 368 { 369 u32 mfunc, mfunc_old, devctl; 370 u8 gpio3, gpio3_old; 371 int pci_irq_status; 372 373 mfunc = mfunc_old = config_readl(socket, TI122X_MFUNC); 374 devctl = config_readb(socket, TI113X_DEVICE_CONTROL); 375 dev_printk(KERN_INFO, &socket->dev->dev, 376 "TI: mfunc 0x%08x, devctl 0x%02x\n", mfunc, devctl); 377 378 /* make sure PCI interrupts are enabled before probing */ 379 ti_init(socket); 380 381 /* test PCI interrupts first. only try fixing if return value is 0! */ 382 pci_irq_status = yenta_probe_cb_irq(socket); 383 if (pci_irq_status) 384 goto out; 385 386 /* 387 * We're here which means PCI interrupts are _not_ delivered. try to 388 * find the right setting (all serial or parallel) 389 */ 390 dev_printk(KERN_INFO, &socket->dev->dev, 391 "TI: probing PCI interrupt failed, trying to fix\n"); 392 393 /* for serial PCI make sure MFUNC3 is set to IRQSER */ 394 if ((devctl & TI113X_DCR_IMODE_MASK) == TI12XX_DCR_IMODE_ALL_SERIAL) { 395 switch (socket->dev->device) { 396 case PCI_DEVICE_ID_TI_1250: 397 case PCI_DEVICE_ID_TI_1251A: 398 case PCI_DEVICE_ID_TI_1251B: 399 case PCI_DEVICE_ID_TI_1450: 400 case PCI_DEVICE_ID_TI_1451A: 401 case PCI_DEVICE_ID_TI_4450: 402 case PCI_DEVICE_ID_TI_4451: 403 /* these chips have no IRQSER setting in MFUNC3 */ 404 break; 405 406 default: 407 mfunc = (mfunc & ~TI122X_MFUNC3_MASK) | TI122X_MFUNC3_IRQSER; 408 409 /* write down if changed, probe */ 410 if (mfunc != mfunc_old) { 411 config_writel(socket, TI122X_MFUNC, mfunc); 412 413 pci_irq_status = yenta_probe_cb_irq(socket); 414 if (pci_irq_status == 1) { 415 dev_printk(KERN_INFO, &socket->dev->dev, 416 "TI: all-serial interrupts ok\n"); 417 mfunc_old = mfunc; 418 goto out; 419 } 420 421 /* not working, back to old value */ 422 mfunc = mfunc_old; 423 config_writel(socket, TI122X_MFUNC, mfunc); 424 425 if (pci_irq_status == -1) 426 goto out; 427 } 428 } 429 430 /* serial PCI interrupts not working fall back to parallel */ 431 dev_printk(KERN_INFO, &socket->dev->dev, 432 "TI: falling back to parallel PCI interrupts\n"); 433 devctl &= ~TI113X_DCR_IMODE_MASK; 434 devctl |= TI113X_DCR_IMODE_SERIAL; /* serial ISA could be right */ 435 config_writeb(socket, TI113X_DEVICE_CONTROL, devctl); 436 } 437 438 /* parallel PCI interrupts: route INTA */ 439 switch (socket->dev->device) { 440 case PCI_DEVICE_ID_TI_1250: 441 case PCI_DEVICE_ID_TI_1251A: 442 case PCI_DEVICE_ID_TI_1251B: 443 case PCI_DEVICE_ID_TI_1450: 444 /* make sure GPIO3 is set to INTA */ 445 gpio3 = gpio3_old = config_readb(socket, TI1250_GPIO3_CONTROL); 446 gpio3 &= ~TI1250_GPIO_MODE_MASK; 447 if (gpio3 != gpio3_old) 448 config_writeb(socket, TI1250_GPIO3_CONTROL, gpio3); 449 break; 450 451 default: 452 gpio3 = gpio3_old = 0; 453 454 mfunc = (mfunc & ~TI122X_MFUNC0_MASK) | TI122X_MFUNC0_INTA; 455 if (mfunc != mfunc_old) 456 config_writel(socket, TI122X_MFUNC, mfunc); 457 } 458 459 /* time to probe again */ 460 pci_irq_status = yenta_probe_cb_irq(socket); 461 if (pci_irq_status == 1) { 462 mfunc_old = mfunc; 463 dev_printk(KERN_INFO, &socket->dev->dev, 464 "TI: parallel PCI interrupts ok\n"); 465 } else { 466 /* not working, back to old value */ 467 mfunc = mfunc_old; 468 config_writel(socket, TI122X_MFUNC, mfunc); 469 if (gpio3 != gpio3_old) 470 config_writeb(socket, TI1250_GPIO3_CONTROL, gpio3_old); 471 } 472 473 out: 474 if (pci_irq_status < 1) { 475 socket->cb_irq = 0; 476 dev_printk(KERN_INFO, &socket->dev->dev, 477 "Yenta TI: no PCI interrupts. Fish. " 478 "Please report.\n"); 479 } 480 } 481 482 483 /* changes the irq of func1 to match that of func0 */ 484 static int ti12xx_align_irqs(struct yenta_socket *socket, int *old_irq) 485 { 486 struct pci_dev *func0; 487 488 /* find func0 device */ 489 func0 = pci_get_slot(socket->dev->bus, socket->dev->devfn & ~0x07); 490 if (!func0) 491 return 0; 492 493 if (old_irq) 494 *old_irq = socket->cb_irq; 495 socket->cb_irq = socket->dev->irq = func0->irq; 496 497 pci_dev_put(func0); 498 499 return 1; 500 } 501 502 /* 503 * ties INTA and INTB together. also changes the devices irq to that of 504 * the function 0 device. call from func1 only. 505 * returns 1 if INTRTIE changed, 0 otherwise. 506 */ 507 static int ti12xx_tie_interrupts(struct yenta_socket *socket, int *old_irq) 508 { 509 u32 sysctl; 510 int ret; 511 512 sysctl = config_readl(socket, TI113X_SYSTEM_CONTROL); 513 if (sysctl & TI122X_SCR_INTRTIE) 514 return 0; 515 516 /* align */ 517 ret = ti12xx_align_irqs(socket, old_irq); 518 if (!ret) 519 return 0; 520 521 /* tie */ 522 sysctl |= TI122X_SCR_INTRTIE; 523 config_writel(socket, TI113X_SYSTEM_CONTROL, sysctl); 524 525 return 1; 526 } 527 528 /* undo what ti12xx_tie_interrupts() did */ 529 static void ti12xx_untie_interrupts(struct yenta_socket *socket, int old_irq) 530 { 531 u32 sysctl = config_readl(socket, TI113X_SYSTEM_CONTROL); 532 sysctl &= ~TI122X_SCR_INTRTIE; 533 config_writel(socket, TI113X_SYSTEM_CONTROL, sysctl); 534 535 socket->cb_irq = socket->dev->irq = old_irq; 536 } 537 538 /* 539 * irqrouting for func1, plays with INTB routing 540 * only touches MFUNC for INTB routing. all other bits are taken 541 * care of in func0 already. 542 */ 543 static void ti12xx_irqroute_func1(struct yenta_socket *socket) 544 { 545 u32 mfunc, mfunc_old, devctl, sysctl; 546 int pci_irq_status; 547 548 mfunc = mfunc_old = config_readl(socket, TI122X_MFUNC); 549 devctl = config_readb(socket, TI113X_DEVICE_CONTROL); 550 dev_printk(KERN_INFO, &socket->dev->dev, 551 "TI: mfunc 0x%08x, devctl 0x%02x\n", 552 mfunc, devctl); 553 554 /* if IRQs are configured as tied, align irq of func1 with func0 */ 555 sysctl = config_readl(socket, TI113X_SYSTEM_CONTROL); 556 if (sysctl & TI122X_SCR_INTRTIE) 557 ti12xx_align_irqs(socket, NULL); 558 559 /* make sure PCI interrupts are enabled before probing */ 560 ti_init(socket); 561 562 /* test PCI interrupts first. only try fixing if return value is 0! */ 563 pci_irq_status = yenta_probe_cb_irq(socket); 564 if (pci_irq_status) 565 goto out; 566 567 /* 568 * We're here which means PCI interrupts are _not_ delivered. try to 569 * find the right setting 570 */ 571 dev_printk(KERN_INFO, &socket->dev->dev, 572 "TI: probing PCI interrupt failed, trying to fix\n"); 573 574 /* if all serial: set INTRTIE, probe again */ 575 if ((devctl & TI113X_DCR_IMODE_MASK) == TI12XX_DCR_IMODE_ALL_SERIAL) { 576 int old_irq; 577 578 if (ti12xx_tie_interrupts(socket, &old_irq)) { 579 pci_irq_status = yenta_probe_cb_irq(socket); 580 if (pci_irq_status == 1) { 581 dev_printk(KERN_INFO, &socket->dev->dev, 582 "TI: all-serial interrupts, tied ok\n"); 583 goto out; 584 } 585 586 ti12xx_untie_interrupts(socket, old_irq); 587 } 588 } 589 /* parallel PCI: route INTB, probe again */ 590 else { 591 int old_irq; 592 593 switch (socket->dev->device) { 594 case PCI_DEVICE_ID_TI_1250: 595 /* the 1250 has one pin for IRQSER/INTB depending on devctl */ 596 break; 597 598 case PCI_DEVICE_ID_TI_1251A: 599 case PCI_DEVICE_ID_TI_1251B: 600 case PCI_DEVICE_ID_TI_1450: 601 /* 602 * those have a pin for IRQSER/INTB plus INTB in MFUNC0 603 * we alread probed the shared pin, now go for MFUNC0 604 */ 605 mfunc = (mfunc & ~TI122X_MFUNC0_MASK) | TI125X_MFUNC0_INTB; 606 break; 607 608 default: 609 mfunc = (mfunc & ~TI122X_MFUNC1_MASK) | TI122X_MFUNC1_INTB; 610 break; 611 } 612 613 /* write, probe */ 614 if (mfunc != mfunc_old) { 615 config_writel(socket, TI122X_MFUNC, mfunc); 616 617 pci_irq_status = yenta_probe_cb_irq(socket); 618 if (pci_irq_status == 1) { 619 dev_printk(KERN_INFO, &socket->dev->dev, 620 "TI: parallel PCI interrupts ok\n"); 621 goto out; 622 } 623 624 mfunc = mfunc_old; 625 config_writel(socket, TI122X_MFUNC, mfunc); 626 627 if (pci_irq_status == -1) 628 goto out; 629 } 630 631 /* still nothing: set INTRTIE */ 632 if (ti12xx_tie_interrupts(socket, &old_irq)) { 633 pci_irq_status = yenta_probe_cb_irq(socket); 634 if (pci_irq_status == 1) { 635 dev_printk(KERN_INFO, &socket->dev->dev, 636 "TI: parallel PCI interrupts, tied ok\n"); 637 goto out; 638 } 639 640 ti12xx_untie_interrupts(socket, old_irq); 641 } 642 } 643 644 out: 645 if (pci_irq_status < 1) { 646 socket->cb_irq = 0; 647 dev_printk(KERN_INFO, &socket->dev->dev, 648 "TI: no PCI interrupts. Fish. Please report.\n"); 649 } 650 } 651 652 653 /* Returns true value if the second slot of a two-slot controller is empty */ 654 static int ti12xx_2nd_slot_empty(struct yenta_socket *socket) 655 { 656 struct pci_dev *func; 657 struct yenta_socket *slot2; 658 int devfn; 659 unsigned int state; 660 int ret = 1; 661 u32 sysctl; 662 663 /* catch the two-slot controllers */ 664 switch (socket->dev->device) { 665 case PCI_DEVICE_ID_TI_1220: 666 case PCI_DEVICE_ID_TI_1221: 667 case PCI_DEVICE_ID_TI_1225: 668 case PCI_DEVICE_ID_TI_1251A: 669 case PCI_DEVICE_ID_TI_1251B: 670 case PCI_DEVICE_ID_TI_1420: 671 case PCI_DEVICE_ID_TI_1450: 672 case PCI_DEVICE_ID_TI_1451A: 673 case PCI_DEVICE_ID_TI_1520: 674 case PCI_DEVICE_ID_TI_1620: 675 case PCI_DEVICE_ID_TI_4520: 676 case PCI_DEVICE_ID_TI_4450: 677 case PCI_DEVICE_ID_TI_4451: 678 /* 679 * there are way more, but they need to be added in yenta_socket.c 680 * and pci_ids.h first anyway. 681 */ 682 break; 683 684 case PCI_DEVICE_ID_TI_XX12: 685 case PCI_DEVICE_ID_TI_X515: 686 case PCI_DEVICE_ID_TI_X420: 687 case PCI_DEVICE_ID_TI_X620: 688 case PCI_DEVICE_ID_TI_XX21_XX11: 689 case PCI_DEVICE_ID_TI_7410: 690 case PCI_DEVICE_ID_TI_7610: 691 /* 692 * those are either single or dual slot CB with additional functions 693 * like 1394, smartcard reader, etc. check the TIEALL flag for them 694 * the TIEALL flag binds the IRQ of all functions together. 695 * we catch the single slot variants later. 696 */ 697 sysctl = config_readl(socket, TI113X_SYSTEM_CONTROL); 698 if (sysctl & TIXX21_SCR_TIEALL) 699 return 0; 700 701 break; 702 703 /* single-slot controllers have the 2nd slot empty always :) */ 704 default: 705 return 1; 706 } 707 708 /* get other slot */ 709 devfn = socket->dev->devfn & ~0x07; 710 func = pci_get_slot(socket->dev->bus, 711 (socket->dev->devfn & 0x07) ? devfn : devfn | 0x01); 712 if (!func) 713 return 1; 714 715 /* 716 * check that the device id of both slots match. this is needed for the 717 * XX21 and the XX11 controller that share the same device id for single 718 * and dual slot controllers. return '2nd slot empty'. we already checked 719 * if the interrupt is tied to another function. 720 */ 721 if (socket->dev->device != func->device) 722 goto out; 723 724 slot2 = pci_get_drvdata(func); 725 if (!slot2) 726 goto out; 727 728 /* check state */ 729 yenta_get_status(&slot2->socket, &state); 730 if (state & SS_DETECT) { 731 ret = 0; 732 goto out; 733 } 734 735 out: 736 pci_dev_put(func); 737 return ret; 738 } 739 740 /* 741 * TI specifiy parts for the power hook. 742 * 743 * some TI's with some CB's produces interrupt storm on power on. it has been 744 * seen with atheros wlan cards on TI1225 and TI1410. solution is simply to 745 * disable any CB interrupts during this time. 746 */ 747 static int ti12xx_power_hook(struct pcmcia_socket *sock, int operation) 748 { 749 struct yenta_socket *socket = container_of(sock, struct yenta_socket, socket); 750 u32 mfunc, devctl, sysctl; 751 u8 gpio3; 752 753 /* only POWER_PRE and POWER_POST are interesting */ 754 if ((operation != HOOK_POWER_PRE) && (operation != HOOK_POWER_POST)) 755 return 0; 756 757 devctl = config_readb(socket, TI113X_DEVICE_CONTROL); 758 sysctl = config_readl(socket, TI113X_SYSTEM_CONTROL); 759 mfunc = config_readl(socket, TI122X_MFUNC); 760 761 /* 762 * all serial/tied: only disable when modparm set. always doing it 763 * would mean a regression for working setups 'cos it disables the 764 * interrupts for both both slots on 2-slot controllers 765 * (and users of single slot controllers where it's save have to 766 * live with setting the modparm, most don't have to anyway) 767 */ 768 if (((devctl & TI113X_DCR_IMODE_MASK) == TI12XX_DCR_IMODE_ALL_SERIAL) && 769 (pwr_irqs_off || ti12xx_2nd_slot_empty(socket))) { 770 switch (socket->dev->device) { 771 case PCI_DEVICE_ID_TI_1250: 772 case PCI_DEVICE_ID_TI_1251A: 773 case PCI_DEVICE_ID_TI_1251B: 774 case PCI_DEVICE_ID_TI_1450: 775 case PCI_DEVICE_ID_TI_1451A: 776 case PCI_DEVICE_ID_TI_4450: 777 case PCI_DEVICE_ID_TI_4451: 778 /* these chips have no IRQSER setting in MFUNC3 */ 779 break; 780 781 default: 782 if (operation == HOOK_POWER_PRE) 783 mfunc = (mfunc & ~TI122X_MFUNC3_MASK); 784 else 785 mfunc = (mfunc & ~TI122X_MFUNC3_MASK) | TI122X_MFUNC3_IRQSER; 786 } 787 788 return 0; 789 } 790 791 /* do the job differently for func0/1 */ 792 if ((PCI_FUNC(socket->dev->devfn) == 0) || 793 ((sysctl & TI122X_SCR_INTRTIE) && 794 (pwr_irqs_off || ti12xx_2nd_slot_empty(socket)))) { 795 /* some bridges are different */ 796 switch (socket->dev->device) { 797 case PCI_DEVICE_ID_TI_1250: 798 case PCI_DEVICE_ID_TI_1251A: 799 case PCI_DEVICE_ID_TI_1251B: 800 case PCI_DEVICE_ID_TI_1450: 801 /* those oldies use gpio3 for INTA */ 802 gpio3 = config_readb(socket, TI1250_GPIO3_CONTROL); 803 if (operation == HOOK_POWER_PRE) 804 gpio3 = (gpio3 & ~TI1250_GPIO_MODE_MASK) | 0x40; 805 else 806 gpio3 &= ~TI1250_GPIO_MODE_MASK; 807 config_writeb(socket, TI1250_GPIO3_CONTROL, gpio3); 808 break; 809 810 default: 811 /* all new bridges are the same */ 812 if (operation == HOOK_POWER_PRE) 813 mfunc &= ~TI122X_MFUNC0_MASK; 814 else 815 mfunc |= TI122X_MFUNC0_INTA; 816 config_writel(socket, TI122X_MFUNC, mfunc); 817 } 818 } else { 819 switch (socket->dev->device) { 820 case PCI_DEVICE_ID_TI_1251A: 821 case PCI_DEVICE_ID_TI_1251B: 822 case PCI_DEVICE_ID_TI_1450: 823 /* those have INTA elsewhere and INTB in MFUNC0 */ 824 if (operation == HOOK_POWER_PRE) 825 mfunc &= ~TI122X_MFUNC0_MASK; 826 else 827 mfunc |= TI125X_MFUNC0_INTB; 828 config_writel(socket, TI122X_MFUNC, mfunc); 829 830 break; 831 832 default: 833 /* all new bridges are the same */ 834 if (operation == HOOK_POWER_PRE) 835 mfunc &= ~TI122X_MFUNC1_MASK; 836 else 837 mfunc |= TI122X_MFUNC1_INTB; 838 config_writel(socket, TI122X_MFUNC, mfunc); 839 } 840 } 841 842 return 0; 843 } 844 845 static int ti12xx_override(struct yenta_socket *socket) 846 { 847 u32 val, val_orig; 848 849 /* make sure that memory burst is active */ 850 val_orig = val = config_readl(socket, TI113X_SYSTEM_CONTROL); 851 if (disable_clkrun && PCI_FUNC(socket->dev->devfn) == 0) { 852 dev_printk(KERN_INFO, &socket->dev->dev, 853 "Disabling CLKRUN feature\n"); 854 val |= TI113X_SCR_KEEPCLK; 855 } 856 if (!(val & TI122X_SCR_MRBURSTUP)) { 857 dev_printk(KERN_INFO, &socket->dev->dev, 858 "Enabling burst memory read transactions\n"); 859 val |= TI122X_SCR_MRBURSTUP; 860 } 861 if (val_orig != val) 862 config_writel(socket, TI113X_SYSTEM_CONTROL, val); 863 864 /* 865 * Yenta expects controllers to use CSCINT to route 866 * CSC interrupts to PCI rather than INTVAL. 867 */ 868 val = config_readb(socket, TI1250_DIAGNOSTIC); 869 dev_printk(KERN_INFO, &socket->dev->dev, 870 "Using %s to route CSC interrupts to PCI\n", 871 (val & TI1250_DIAG_PCI_CSC) ? "CSCINT" : "INTVAL"); 872 dev_printk(KERN_INFO, &socket->dev->dev, 873 "Routing CardBus interrupts to %s\n", 874 (val & TI1250_DIAG_PCI_IREQ) ? "PCI" : "ISA"); 875 876 /* do irqrouting, depending on function */ 877 if (PCI_FUNC(socket->dev->devfn) == 0) 878 ti12xx_irqroute_func0(socket); 879 else 880 ti12xx_irqroute_func1(socket); 881 882 /* install power hook */ 883 socket->socket.power_hook = ti12xx_power_hook; 884 885 return ti_override(socket); 886 } 887 888 889 static int ti1250_override(struct yenta_socket *socket) 890 { 891 u8 old, diag; 892 893 old = config_readb(socket, TI1250_DIAGNOSTIC); 894 diag = old & ~(TI1250_DIAG_PCI_CSC | TI1250_DIAG_PCI_IREQ); 895 if (socket->cb_irq) 896 diag |= TI1250_DIAG_PCI_CSC | TI1250_DIAG_PCI_IREQ; 897 898 if (diag != old) { 899 dev_printk(KERN_INFO, &socket->dev->dev, 900 "adjusting diagnostic: %02x -> %02x\n", 901 old, diag); 902 config_writeb(socket, TI1250_DIAGNOSTIC, diag); 903 } 904 905 return ti12xx_override(socket); 906 } 907 908 909 /** 910 * EnE specific part. EnE bridges are register compatible with TI bridges but 911 * have their own test registers and more important their own little problems. 912 * Some fixup code to make everybody happy (TM). 913 */ 914 915 #ifdef CONFIG_YENTA_ENE_TUNE 916 /* 917 * set/clear various test bits: 918 * Defaults to clear the bit. 919 * - mask (u8) defines what bits to change 920 * - bits (u8) is the values to change them to 921 * -> it's 922 * current = (current & ~mask) | bits 923 */ 924 /* pci ids of devices that wants to have the bit set */ 925 #define DEVID(_vend,_dev,_subvend,_subdev,mask,bits) { \ 926 .vendor = _vend, \ 927 .device = _dev, \ 928 .subvendor = _subvend, \ 929 .subdevice = _subdev, \ 930 .driver_data = ((mask) << 8 | (bits)), \ 931 } 932 static struct pci_device_id ene_tune_tbl[] = { 933 /* Echo Audio products based on motorola DSP56301 and DSP56361 */ 934 DEVID(PCI_VENDOR_ID_MOTOROLA, 0x1801, 0xECC0, PCI_ANY_ID, 935 ENE_TEST_C9_TLTENABLE | ENE_TEST_C9_PFENABLE, ENE_TEST_C9_TLTENABLE), 936 DEVID(PCI_VENDOR_ID_MOTOROLA, 0x3410, 0xECC0, PCI_ANY_ID, 937 ENE_TEST_C9_TLTENABLE | ENE_TEST_C9_PFENABLE, ENE_TEST_C9_TLTENABLE), 938 939 {} 940 }; 941 942 static void ene_tune_bridge(struct pcmcia_socket *sock, struct pci_bus *bus) 943 { 944 struct yenta_socket *socket = container_of(sock, struct yenta_socket, socket); 945 struct pci_dev *dev; 946 struct pci_device_id *id = NULL; 947 u8 test_c9, old_c9, mask, bits; 948 949 list_for_each_entry(dev, &bus->devices, bus_list) { 950 id = (struct pci_device_id *) pci_match_id(ene_tune_tbl, dev); 951 if (id) 952 break; 953 } 954 955 test_c9 = old_c9 = config_readb(socket, ENE_TEST_C9); 956 if (id) { 957 mask = (id->driver_data >> 8) & 0xFF; 958 bits = id->driver_data & 0xFF; 959 960 test_c9 = (test_c9 & ~mask) | bits; 961 } 962 else 963 /* default to clear TLTEnable bit, old behaviour */ 964 test_c9 &= ~ENE_TEST_C9_TLTENABLE; 965 966 dev_printk(KERN_INFO, &socket->dev->dev, 967 "EnE: chaning testregister 0xC9, %02x -> %02x\n", 968 old_c9, test_c9); 969 config_writeb(socket, ENE_TEST_C9, test_c9); 970 } 971 972 static int ene_override(struct yenta_socket *socket) 973 { 974 /* install tune_bridge() function */ 975 socket->socket.tune_bridge = ene_tune_bridge; 976 977 return ti1250_override(socket); 978 } 979 #else 980 # define ene_override ti1250_override 981 #endif /* !CONFIG_YENTA_ENE_TUNE */ 982 983 #endif /* _LINUX_TI113X_H */ 984 985