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 #include <linux/config.h> 34 35 /* Register definitions for TI 113X PCI-to-CardBus bridges */ 36 37 /* System Control Register */ 38 #define TI113X_SYSTEM_CONTROL 0x0080 /* 32 bit */ 39 #define TI113X_SCR_SMIROUTE 0x04000000 40 #define TI113X_SCR_SMISTATUS 0x02000000 41 #define TI113X_SCR_SMIENB 0x01000000 42 #define TI113X_SCR_VCCPROT 0x00200000 43 #define TI113X_SCR_REDUCEZV 0x00100000 44 #define TI113X_SCR_CDREQEN 0x00080000 45 #define TI113X_SCR_CDMACHAN 0x00070000 46 #define TI113X_SCR_SOCACTIVE 0x00002000 47 #define TI113X_SCR_PWRSTREAM 0x00000800 48 #define TI113X_SCR_DELAYUP 0x00000400 49 #define TI113X_SCR_DELAYDOWN 0x00000200 50 #define TI113X_SCR_INTERROGATE 0x00000100 51 #define TI113X_SCR_CLKRUN_SEL 0x00000080 52 #define TI113X_SCR_PWRSAVINGS 0x00000040 53 #define TI113X_SCR_SUBSYSRW 0x00000020 54 #define TI113X_SCR_CB_DPAR 0x00000010 55 #define TI113X_SCR_CDMA_EN 0x00000008 56 #define TI113X_SCR_ASYNC_IRQ 0x00000004 57 #define TI113X_SCR_KEEPCLK 0x00000002 58 #define TI113X_SCR_CLKRUN_ENA 0x00000001 59 60 #define TI122X_SCR_SER_STEP 0xc0000000 61 #define TI122X_SCR_INTRTIE 0x20000000 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 156 157 #ifdef CONFIG_CARDBUS 158 159 /* 160 * Texas Instruments CardBus controller overrides. 161 */ 162 #define ti_sysctl(socket) ((socket)->private[0]) 163 #define ti_cardctl(socket) ((socket)->private[1]) 164 #define ti_devctl(socket) ((socket)->private[2]) 165 #define ti_diag(socket) ((socket)->private[3]) 166 #define ti_mfunc(socket) ((socket)->private[4]) 167 #define ene_test_c9(socket) ((socket)->private[5]) 168 169 /* 170 * These are the TI specific power management handlers. 171 */ 172 static void ti_save_state(struct yenta_socket *socket) 173 { 174 ti_sysctl(socket) = config_readl(socket, TI113X_SYSTEM_CONTROL); 175 ti_mfunc(socket) = config_readl(socket, TI122X_MFUNC); 176 ti_cardctl(socket) = config_readb(socket, TI113X_CARD_CONTROL); 177 ti_devctl(socket) = config_readb(socket, TI113X_DEVICE_CONTROL); 178 ti_diag(socket) = config_readb(socket, TI1250_DIAGNOSTIC); 179 180 if (socket->dev->vendor == PCI_VENDOR_ID_ENE) 181 ene_test_c9(socket) = config_readb(socket, ENE_TEST_C9); 182 } 183 184 static void ti_restore_state(struct yenta_socket *socket) 185 { 186 config_writel(socket, TI113X_SYSTEM_CONTROL, ti_sysctl(socket)); 187 config_writel(socket, TI122X_MFUNC, ti_mfunc(socket)); 188 config_writeb(socket, TI113X_CARD_CONTROL, ti_cardctl(socket)); 189 config_writeb(socket, TI113X_DEVICE_CONTROL, ti_devctl(socket)); 190 config_writeb(socket, TI1250_DIAGNOSTIC, ti_diag(socket)); 191 192 if (socket->dev->vendor == PCI_VENDOR_ID_ENE) 193 config_writeb(socket, ENE_TEST_C9, ene_test_c9(socket)); 194 } 195 196 /* 197 * Zoom video control for TI122x/113x chips 198 */ 199 200 static void ti_zoom_video(struct pcmcia_socket *sock, int onoff) 201 { 202 u8 reg; 203 struct yenta_socket *socket = container_of(sock, struct yenta_socket, socket); 204 205 /* If we don't have a Zoom Video switch this is harmless, 206 we just tristate the unused (ZV) lines */ 207 reg = config_readb(socket, TI113X_CARD_CONTROL); 208 if (onoff) 209 /* Zoom zoom, we will all go together, zoom zoom, zoom zoom */ 210 reg |= TI113X_CCR_ZVENABLE; 211 else 212 reg &= ~TI113X_CCR_ZVENABLE; 213 config_writeb(socket, TI113X_CARD_CONTROL, reg); 214 } 215 216 /* 217 * The 145x series can also use this. They have an additional 218 * ZV autodetect mode we don't use but don't actually need. 219 * FIXME: manual says its in func0 and func1 but disagrees with 220 * itself about this - do we need to force func0, if so we need 221 * to know a lot more about socket pairings in pcmcia_socket than 222 * we do now.. uggh. 223 */ 224 225 static void ti1250_zoom_video(struct pcmcia_socket *sock, int onoff) 226 { 227 struct yenta_socket *socket = container_of(sock, struct yenta_socket, socket); 228 int shift = 0; 229 u8 reg; 230 231 ti_zoom_video(sock, onoff); 232 233 reg = config_readb(socket, TI1250_MULTIMEDIA_CTL); 234 reg |= TI1250_MMC_ZVOUTEN; /* ZV bus enable */ 235 236 if(PCI_FUNC(socket->dev->devfn)==1) 237 shift = 1; 238 239 if(onoff) 240 { 241 reg &= ~(1<<6); /* Clear select bit */ 242 reg |= shift<<6; /* Favour our socket */ 243 reg |= 1<<shift; /* Socket zoom video on */ 244 } 245 else 246 { 247 reg &= ~(1<<6); /* Clear select bit */ 248 reg |= (1^shift)<<6; /* Favour other socket */ 249 reg &= ~(1<<shift); /* Socket zoon video off */ 250 } 251 252 config_writeb(socket, TI1250_MULTIMEDIA_CTL, reg); 253 } 254 255 static void ti_set_zv(struct yenta_socket *socket) 256 { 257 if(socket->dev->vendor == PCI_VENDOR_ID_TI) 258 { 259 switch(socket->dev->device) 260 { 261 /* There may be more .. */ 262 case PCI_DEVICE_ID_TI_1220: 263 case PCI_DEVICE_ID_TI_1221: 264 case PCI_DEVICE_ID_TI_1225: 265 case PCI_DEVICE_ID_TI_4510: 266 socket->socket.zoom_video = ti_zoom_video; 267 break; 268 case PCI_DEVICE_ID_TI_1250: 269 case PCI_DEVICE_ID_TI_1251A: 270 case PCI_DEVICE_ID_TI_1251B: 271 case PCI_DEVICE_ID_TI_1450: 272 socket->socket.zoom_video = ti1250_zoom_video; 273 } 274 } 275 } 276 277 278 /* 279 * Generic TI init - TI has an extension for the 280 * INTCTL register that sets the PCI CSC interrupt. 281 * Make sure we set it correctly at open and init 282 * time 283 * - override: disable the PCI CSC interrupt. This makes 284 * it possible to use the CSC interrupt to probe the 285 * ISA interrupts. 286 * - init: set the interrupt to match our PCI state. 287 * This makes us correctly get PCI CSC interrupt 288 * events. 289 */ 290 static int ti_init(struct yenta_socket *socket) 291 { 292 u8 new, reg = exca_readb(socket, I365_INTCTL); 293 294 new = reg & ~I365_INTR_ENA; 295 if (socket->cb_irq) 296 new |= I365_INTR_ENA; 297 if (new != reg) 298 exca_writeb(socket, I365_INTCTL, new); 299 return 0; 300 } 301 302 static int ti_override(struct yenta_socket *socket) 303 { 304 u8 new, reg = exca_readb(socket, I365_INTCTL); 305 306 new = reg & ~I365_INTR_ENA; 307 if (new != reg) 308 exca_writeb(socket, I365_INTCTL, new); 309 310 ti_set_zv(socket); 311 312 return 0; 313 } 314 315 static int ti113x_override(struct yenta_socket *socket) 316 { 317 u8 cardctl; 318 319 cardctl = config_readb(socket, TI113X_CARD_CONTROL); 320 cardctl &= ~(TI113X_CCR_PCI_IRQ_ENA | TI113X_CCR_PCI_IREQ | TI113X_CCR_PCI_CSC); 321 if (socket->cb_irq) 322 cardctl |= TI113X_CCR_PCI_IRQ_ENA | TI113X_CCR_PCI_CSC | TI113X_CCR_PCI_IREQ; 323 config_writeb(socket, TI113X_CARD_CONTROL, cardctl); 324 325 return ti_override(socket); 326 } 327 328 329 /* irqrouting for func0, probes PCI interrupt and ISA interrupts */ 330 static void ti12xx_irqroute_func0(struct yenta_socket *socket) 331 { 332 u32 mfunc, mfunc_old, devctl; 333 u8 gpio3, gpio3_old; 334 int pci_irq_status; 335 336 mfunc = mfunc_old = config_readl(socket, TI122X_MFUNC); 337 devctl = config_readb(socket, TI113X_DEVICE_CONTROL); 338 printk(KERN_INFO "Yenta TI: socket %s, mfunc 0x%08x, devctl 0x%02x\n", 339 pci_name(socket->dev), mfunc, devctl); 340 341 /* make sure PCI interrupts are enabled before probing */ 342 ti_init(socket); 343 344 /* test PCI interrupts first. only try fixing if return value is 0! */ 345 pci_irq_status = yenta_probe_cb_irq(socket); 346 if (pci_irq_status) 347 goto out; 348 349 /* 350 * We're here which means PCI interrupts are _not_ delivered. try to 351 * find the right setting (all serial or parallel) 352 */ 353 printk(KERN_INFO "Yenta TI: socket %s probing PCI interrupt failed, trying to fix\n", 354 pci_name(socket->dev)); 355 356 /* for serial PCI make sure MFUNC3 is set to IRQSER */ 357 if ((devctl & TI113X_DCR_IMODE_MASK) == TI12XX_DCR_IMODE_ALL_SERIAL) { 358 switch (socket->dev->device) { 359 case PCI_DEVICE_ID_TI_1250: 360 case PCI_DEVICE_ID_TI_1251A: 361 case PCI_DEVICE_ID_TI_1251B: 362 case PCI_DEVICE_ID_TI_1450: 363 case PCI_DEVICE_ID_TI_1451A: 364 case PCI_DEVICE_ID_TI_4450: 365 case PCI_DEVICE_ID_TI_4451: 366 /* these chips have no IRQSER setting in MFUNC3 */ 367 break; 368 369 default: 370 mfunc = (mfunc & ~TI122X_MFUNC3_MASK) | TI122X_MFUNC3_IRQSER; 371 372 /* write down if changed, probe */ 373 if (mfunc != mfunc_old) { 374 config_writel(socket, TI122X_MFUNC, mfunc); 375 376 pci_irq_status = yenta_probe_cb_irq(socket); 377 if (pci_irq_status == 1) { 378 printk(KERN_INFO "Yenta TI: socket %s all-serial interrupts ok\n", 379 pci_name(socket->dev)); 380 mfunc_old = mfunc; 381 goto out; 382 } 383 384 /* not working, back to old value */ 385 mfunc = mfunc_old; 386 config_writel(socket, TI122X_MFUNC, mfunc); 387 388 if (pci_irq_status == -1) 389 goto out; 390 } 391 } 392 393 /* serial PCI interrupts not working fall back to parallel */ 394 printk(KERN_INFO "Yenta TI: socket %s falling back to parallel PCI interrupts\n", 395 pci_name(socket->dev)); 396 devctl &= ~TI113X_DCR_IMODE_MASK; 397 devctl |= TI113X_DCR_IMODE_SERIAL; /* serial ISA could be right */ 398 config_writeb(socket, TI113X_DEVICE_CONTROL, devctl); 399 } 400 401 /* parallel PCI interrupts: route INTA */ 402 switch (socket->dev->device) { 403 case PCI_DEVICE_ID_TI_1250: 404 case PCI_DEVICE_ID_TI_1251A: 405 case PCI_DEVICE_ID_TI_1251B: 406 case PCI_DEVICE_ID_TI_1450: 407 /* make sure GPIO3 is set to INTA */ 408 gpio3 = gpio3_old = config_readb(socket, TI1250_GPIO3_CONTROL); 409 gpio3 &= ~TI1250_GPIO_MODE_MASK; 410 if (gpio3 != gpio3_old) 411 config_writeb(socket, TI1250_GPIO3_CONTROL, gpio3); 412 break; 413 414 default: 415 gpio3 = gpio3_old = 0; 416 417 mfunc = (mfunc & ~TI122X_MFUNC0_MASK) | TI122X_MFUNC0_INTA; 418 if (mfunc != mfunc_old) 419 config_writel(socket, TI122X_MFUNC, mfunc); 420 } 421 422 /* time to probe again */ 423 pci_irq_status = yenta_probe_cb_irq(socket); 424 if (pci_irq_status == 1) { 425 mfunc_old = mfunc; 426 printk(KERN_INFO "Yenta TI: socket %s parallel PCI interrupts ok\n", 427 pci_name(socket->dev)); 428 } else { 429 /* not working, back to old value */ 430 mfunc = mfunc_old; 431 config_writel(socket, TI122X_MFUNC, mfunc); 432 if (gpio3 != gpio3_old) 433 config_writeb(socket, TI1250_GPIO3_CONTROL, gpio3_old); 434 } 435 436 out: 437 if (pci_irq_status < 1) { 438 socket->cb_irq = 0; 439 printk(KERN_INFO "Yenta TI: socket %s no PCI interrupts. Fish. Please report.\n", 440 pci_name(socket->dev)); 441 } 442 } 443 444 445 /* changes the irq of func1 to match that of func0 */ 446 static int ti12xx_align_irqs(struct yenta_socket *socket, int *old_irq) 447 { 448 struct pci_dev *func0; 449 450 /* find func0 device */ 451 func0 = pci_get_slot(socket->dev->bus, socket->dev->devfn & ~0x07); 452 if (!func0) 453 return 0; 454 455 if (old_irq) 456 *old_irq = socket->cb_irq; 457 socket->cb_irq = socket->dev->irq = func0->irq; 458 459 pci_dev_put(func0); 460 461 return 1; 462 } 463 464 /* 465 * ties INTA and INTB together. also changes the devices irq to that of 466 * the function 0 device. call from func1 only. 467 * returns 1 if INTRTIE changed, 0 otherwise. 468 */ 469 static int ti12xx_tie_interrupts(struct yenta_socket *socket, int *old_irq) 470 { 471 u32 sysctl; 472 int ret; 473 474 sysctl = config_readl(socket, TI113X_SYSTEM_CONTROL); 475 if (sysctl & TI122X_SCR_INTRTIE) 476 return 0; 477 478 /* align */ 479 ret = ti12xx_align_irqs(socket, old_irq); 480 if (!ret) 481 return 0; 482 483 /* tie */ 484 sysctl |= TI122X_SCR_INTRTIE; 485 config_writel(socket, TI113X_SYSTEM_CONTROL, sysctl); 486 487 return 1; 488 } 489 490 /* undo what ti12xx_tie_interrupts() did */ 491 static void ti12xx_untie_interrupts(struct yenta_socket *socket, int old_irq) 492 { 493 u32 sysctl = config_readl(socket, TI113X_SYSTEM_CONTROL); 494 sysctl &= ~TI122X_SCR_INTRTIE; 495 config_writel(socket, TI113X_SYSTEM_CONTROL, sysctl); 496 497 socket->cb_irq = socket->dev->irq = old_irq; 498 } 499 500 /* 501 * irqrouting for func1, plays with INTB routing 502 * only touches MFUNC for INTB routing. all other bits are taken 503 * care of in func0 already. 504 */ 505 static void ti12xx_irqroute_func1(struct yenta_socket *socket) 506 { 507 u32 mfunc, mfunc_old, devctl, sysctl; 508 int pci_irq_status; 509 510 mfunc = mfunc_old = config_readl(socket, TI122X_MFUNC); 511 devctl = config_readb(socket, TI113X_DEVICE_CONTROL); 512 printk(KERN_INFO "Yenta TI: socket %s, mfunc 0x%08x, devctl 0x%02x\n", 513 pci_name(socket->dev), mfunc, devctl); 514 515 /* if IRQs are configured as tied, align irq of func1 with func0 */ 516 sysctl = config_readl(socket, TI113X_SYSTEM_CONTROL); 517 if (sysctl & TI122X_SCR_INTRTIE) 518 ti12xx_align_irqs(socket, NULL); 519 520 /* make sure PCI interrupts are enabled before probing */ 521 ti_init(socket); 522 523 /* test PCI interrupts first. only try fixing if return value is 0! */ 524 pci_irq_status = yenta_probe_cb_irq(socket); 525 if (pci_irq_status) 526 goto out; 527 528 /* 529 * We're here which means PCI interrupts are _not_ delivered. try to 530 * find the right setting 531 */ 532 printk(KERN_INFO "Yenta TI: socket %s probing PCI interrupt failed, trying to fix\n", 533 pci_name(socket->dev)); 534 535 536 /* if all serial: set INTRTIE, probe again */ 537 if ((devctl & TI113X_DCR_IMODE_MASK) == TI12XX_DCR_IMODE_ALL_SERIAL) { 538 int old_irq; 539 540 if (ti12xx_tie_interrupts(socket, &old_irq)) { 541 pci_irq_status = yenta_probe_cb_irq(socket); 542 if (pci_irq_status == 1) { 543 printk(KERN_INFO "Yenta TI: socket %s all-serial interrupts, tied ok\n", 544 pci_name(socket->dev)); 545 goto out; 546 } 547 548 ti12xx_untie_interrupts(socket, old_irq); 549 } 550 } 551 /* parallel PCI: route INTB, probe again */ 552 else { 553 int old_irq; 554 555 switch (socket->dev->device) { 556 case PCI_DEVICE_ID_TI_1250: 557 /* the 1250 has one pin for IRQSER/INTB depending on devctl */ 558 break; 559 560 case PCI_DEVICE_ID_TI_1251A: 561 case PCI_DEVICE_ID_TI_1251B: 562 case PCI_DEVICE_ID_TI_1450: 563 /* 564 * those have a pin for IRQSER/INTB plus INTB in MFUNC0 565 * we alread probed the shared pin, now go for MFUNC0 566 */ 567 mfunc = (mfunc & ~TI122X_MFUNC0_MASK) | TI125X_MFUNC0_INTB; 568 break; 569 570 default: 571 mfunc = (mfunc & ~TI122X_MFUNC1_MASK) | TI122X_MFUNC1_INTB; 572 break; 573 } 574 575 /* write, probe */ 576 if (mfunc != mfunc_old) { 577 config_writel(socket, TI122X_MFUNC, mfunc); 578 579 pci_irq_status = yenta_probe_cb_irq(socket); 580 if (pci_irq_status == 1) { 581 printk(KERN_INFO "Yenta TI: socket %s parallel PCI interrupts ok\n", 582 pci_name(socket->dev)); 583 goto out; 584 } 585 586 mfunc = mfunc_old; 587 config_writel(socket, TI122X_MFUNC, mfunc); 588 589 if (pci_irq_status == -1) 590 goto out; 591 } 592 593 /* still nothing: set INTRTIE */ 594 if (ti12xx_tie_interrupts(socket, &old_irq)) { 595 pci_irq_status = yenta_probe_cb_irq(socket); 596 if (pci_irq_status == 1) { 597 printk(KERN_INFO "Yenta TI: socket %s parallel PCI interrupts, tied ok\n", 598 pci_name(socket->dev)); 599 goto out; 600 } 601 602 ti12xx_untie_interrupts(socket, old_irq); 603 } 604 } 605 606 out: 607 if (pci_irq_status < 1) { 608 socket->cb_irq = 0; 609 printk(KERN_INFO "Yenta TI: socket %s no PCI interrupts. Fish. Please report.\n", 610 pci_name(socket->dev)); 611 } 612 } 613 614 615 /* Returns true value if the second slot of a two-slot controller is empty */ 616 static int ti12xx_2nd_slot_empty(struct yenta_socket *socket) 617 { 618 struct pci_dev *func; 619 struct yenta_socket *slot2; 620 int devfn; 621 unsigned int state; 622 int ret = 1; 623 624 /* catch the two-slot controllers */ 625 switch (socket->dev->device) { 626 case PCI_DEVICE_ID_TI_1220: 627 case PCI_DEVICE_ID_TI_1221: 628 case PCI_DEVICE_ID_TI_1225: 629 case PCI_DEVICE_ID_TI_1251A: 630 case PCI_DEVICE_ID_TI_1251B: 631 case PCI_DEVICE_ID_TI_1420: 632 case PCI_DEVICE_ID_TI_1450: 633 case PCI_DEVICE_ID_TI_1451A: 634 case PCI_DEVICE_ID_TI_1520: 635 case PCI_DEVICE_ID_TI_1620: 636 case PCI_DEVICE_ID_TI_4520: 637 case PCI_DEVICE_ID_TI_4450: 638 case PCI_DEVICE_ID_TI_4451: 639 /* 640 * there are way more, but they need to be added in yenta_socket.c 641 * and pci_ids.h first anyway. 642 */ 643 break; 644 645 /* single-slot controllers have the 2nd slot empty always :) */ 646 default: 647 return 1; 648 } 649 650 /* get other slot */ 651 devfn = socket->dev->devfn & ~0x07; 652 func = pci_get_slot(socket->dev->bus, 653 (socket->dev->devfn & 0x07) ? devfn : devfn | 0x01); 654 if (!func) 655 return 1; 656 657 slot2 = pci_get_drvdata(func); 658 if (!slot2) 659 goto out; 660 661 /* check state */ 662 yenta_get_status(&socket->socket, &state); 663 if (state & SS_DETECT) { 664 ret = 0; 665 goto out; 666 } 667 668 out: 669 pci_dev_put(func); 670 return ret; 671 } 672 673 /* 674 * TI specifiy parts for the power hook. 675 * 676 * some TI's with some CB's produces interrupt storm on power on. it has been 677 * seen with atheros wlan cards on TI1225 and TI1410. solution is simply to 678 * disable any CB interrupts during this time. 679 */ 680 static int ti12xx_power_hook(struct pcmcia_socket *sock, int operation) 681 { 682 struct yenta_socket *socket = container_of(sock, struct yenta_socket, socket); 683 u32 mfunc, devctl, sysctl; 684 u8 gpio3; 685 686 /* only POWER_PRE and POWER_POST are interesting */ 687 if ((operation != HOOK_POWER_PRE) && (operation != HOOK_POWER_POST)) 688 return 0; 689 690 devctl = config_readb(socket, TI113X_DEVICE_CONTROL); 691 sysctl = config_readl(socket, TI113X_SYSTEM_CONTROL); 692 mfunc = config_readl(socket, TI122X_MFUNC); 693 694 /* 695 * all serial/tied: only disable when modparm set. always doing it 696 * would mean a regression for working setups 'cos it disables the 697 * interrupts for both both slots on 2-slot controllers 698 * (and users of single slot controllers where it's save have to 699 * live with setting the modparm, most don't have to anyway) 700 */ 701 if (((devctl & TI113X_DCR_IMODE_MASK) == TI12XX_DCR_IMODE_ALL_SERIAL) && 702 (pwr_irqs_off || ti12xx_2nd_slot_empty(socket))) { 703 switch (socket->dev->device) { 704 case PCI_DEVICE_ID_TI_1250: 705 case PCI_DEVICE_ID_TI_1251A: 706 case PCI_DEVICE_ID_TI_1251B: 707 case PCI_DEVICE_ID_TI_1450: 708 case PCI_DEVICE_ID_TI_1451A: 709 case PCI_DEVICE_ID_TI_4450: 710 case PCI_DEVICE_ID_TI_4451: 711 /* these chips have no IRQSER setting in MFUNC3 */ 712 break; 713 714 default: 715 if (operation == HOOK_POWER_PRE) 716 mfunc = (mfunc & ~TI122X_MFUNC3_MASK); 717 else 718 mfunc = (mfunc & ~TI122X_MFUNC3_MASK) | TI122X_MFUNC3_IRQSER; 719 } 720 721 return 0; 722 } 723 724 /* do the job differently for func0/1 */ 725 if ((PCI_FUNC(socket->dev->devfn) == 0) || 726 ((sysctl & TI122X_SCR_INTRTIE) && 727 (pwr_irqs_off || ti12xx_2nd_slot_empty(socket)))) { 728 /* some bridges are different */ 729 switch (socket->dev->device) { 730 case PCI_DEVICE_ID_TI_1250: 731 case PCI_DEVICE_ID_TI_1251A: 732 case PCI_DEVICE_ID_TI_1251B: 733 case PCI_DEVICE_ID_TI_1450: 734 /* those oldies use gpio3 for INTA */ 735 gpio3 = config_readb(socket, TI1250_GPIO3_CONTROL); 736 if (operation == HOOK_POWER_PRE) 737 gpio3 = (gpio3 & ~TI1250_GPIO_MODE_MASK) | 0x40; 738 else 739 gpio3 &= ~TI1250_GPIO_MODE_MASK; 740 config_writeb(socket, TI1250_GPIO3_CONTROL, gpio3); 741 break; 742 743 default: 744 /* all new bridges are the same */ 745 if (operation == HOOK_POWER_PRE) 746 mfunc &= ~TI122X_MFUNC0_MASK; 747 else 748 mfunc |= TI122X_MFUNC0_INTA; 749 config_writel(socket, TI122X_MFUNC, mfunc); 750 } 751 } else { 752 switch (socket->dev->device) { 753 case PCI_DEVICE_ID_TI_1251A: 754 case PCI_DEVICE_ID_TI_1251B: 755 case PCI_DEVICE_ID_TI_1450: 756 /* those have INTA elsewhere and INTB in MFUNC0 */ 757 if (operation == HOOK_POWER_PRE) 758 mfunc &= ~TI122X_MFUNC0_MASK; 759 else 760 mfunc |= TI125X_MFUNC0_INTB; 761 config_writel(socket, TI122X_MFUNC, mfunc); 762 763 break; 764 765 default: 766 /* all new bridges are the same */ 767 if (operation == HOOK_POWER_PRE) 768 mfunc &= ~TI122X_MFUNC1_MASK; 769 else 770 mfunc |= TI122X_MFUNC1_INTB; 771 config_writel(socket, TI122X_MFUNC, mfunc); 772 } 773 } 774 775 return 0; 776 } 777 778 static int ti12xx_override(struct yenta_socket *socket) 779 { 780 u32 val, val_orig; 781 782 /* make sure that memory burst is active */ 783 val_orig = val = config_readl(socket, TI113X_SYSTEM_CONTROL); 784 if (disable_clkrun && PCI_FUNC(socket->dev->devfn) == 0) { 785 printk(KERN_INFO "Yenta: Disabling CLKRUN feature\n"); 786 val |= TI113X_SCR_KEEPCLK; 787 } 788 if (!(val & TI122X_SCR_MRBURSTUP)) { 789 printk(KERN_INFO "Yenta: Enabling burst memory read transactions\n"); 790 val |= TI122X_SCR_MRBURSTUP; 791 } 792 if (val_orig != val) 793 config_writel(socket, TI113X_SYSTEM_CONTROL, val); 794 795 /* 796 * for EnE bridges only: clear testbit TLTEnable. this makes the 797 * RME Hammerfall DSP sound card working. 798 */ 799 if (socket->dev->vendor == PCI_VENDOR_ID_ENE) { 800 u8 test_c9 = config_readb(socket, ENE_TEST_C9); 801 test_c9 &= ~ENE_TEST_C9_TLTENABLE; 802 config_writeb(socket, ENE_TEST_C9, test_c9); 803 } 804 805 /* 806 * Yenta expects controllers to use CSCINT to route 807 * CSC interrupts to PCI rather than INTVAL. 808 */ 809 val = config_readb(socket, TI1250_DIAGNOSTIC); 810 printk(KERN_INFO "Yenta: Using %s to route CSC interrupts to PCI\n", 811 (val & TI1250_DIAG_PCI_CSC) ? "CSCINT" : "INTVAL"); 812 printk(KERN_INFO "Yenta: Routing CardBus interrupts to %s\n", 813 (val & TI1250_DIAG_PCI_IREQ) ? "PCI" : "ISA"); 814 815 /* do irqrouting, depending on function */ 816 if (PCI_FUNC(socket->dev->devfn) == 0) 817 ti12xx_irqroute_func0(socket); 818 else 819 ti12xx_irqroute_func1(socket); 820 821 /* install power hook */ 822 socket->socket.power_hook = ti12xx_power_hook; 823 824 return ti_override(socket); 825 } 826 827 828 static int ti1250_override(struct yenta_socket *socket) 829 { 830 u8 old, diag; 831 832 old = config_readb(socket, TI1250_DIAGNOSTIC); 833 diag = old & ~(TI1250_DIAG_PCI_CSC | TI1250_DIAG_PCI_IREQ); 834 if (socket->cb_irq) 835 diag |= TI1250_DIAG_PCI_CSC | TI1250_DIAG_PCI_IREQ; 836 837 if (diag != old) { 838 printk(KERN_INFO "Yenta: adjusting diagnostic: %02x -> %02x\n", 839 old, diag); 840 config_writeb(socket, TI1250_DIAGNOSTIC, diag); 841 } 842 843 return ti12xx_override(socket); 844 } 845 846 #endif /* CONFIG_CARDBUS */ 847 848 #endif /* _LINUX_TI113X_H */ 849 850