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 */ ti_save_state(struct yenta_socket * socket)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 ti_restore_state(struct yenta_socket * socket)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 ti_zoom_video(struct pcmcia_socket * sock,int onoff)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 ti1250_zoom_video(struct pcmcia_socket * sock,int onoff)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 ti_set_zv(struct yenta_socket * socket)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 */ ti_init(struct yenta_socket * socket)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 ti_override(struct yenta_socket * socket)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 ti113x_use_isa_irq(struct yenta_socket * socket)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 ti113x_override(struct yenta_socket * socket)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 */ ti12xx_irqroute_func0(struct yenta_socket * socket)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_info(&socket->dev->dev, "TI: mfunc 0x%08x, devctl 0x%02x\n", 376 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_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_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_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_info(&socket->dev->dev, "TI: parallel PCI interrupts ok\n"); 464 } else { 465 /* not working, back to old value */ 466 mfunc = mfunc_old; 467 config_writel(socket, TI122X_MFUNC, mfunc); 468 if (gpio3 != gpio3_old) 469 config_writeb(socket, TI1250_GPIO3_CONTROL, gpio3_old); 470 } 471 472 out: 473 if (pci_irq_status < 1) { 474 socket->cb_irq = 0; 475 dev_info(&socket->dev->dev, 476 "Yenta TI: no PCI interrupts. Fish. Please report.\n"); 477 } 478 } 479 480 481 /* changes the irq of func1 to match that of func0 */ ti12xx_align_irqs(struct yenta_socket * socket,int * old_irq)482 static int ti12xx_align_irqs(struct yenta_socket *socket, int *old_irq) 483 { 484 struct pci_dev *func0; 485 486 /* find func0 device */ 487 func0 = pci_get_slot(socket->dev->bus, socket->dev->devfn & ~0x07); 488 if (!func0) 489 return 0; 490 491 if (old_irq) 492 *old_irq = socket->cb_irq; 493 socket->cb_irq = socket->dev->irq = func0->irq; 494 495 pci_dev_put(func0); 496 497 return 1; 498 } 499 500 /* 501 * ties INTA and INTB together. also changes the devices irq to that of 502 * the function 0 device. call from func1 only. 503 * returns 1 if INTRTIE changed, 0 otherwise. 504 */ ti12xx_tie_interrupts(struct yenta_socket * socket,int * old_irq)505 static int ti12xx_tie_interrupts(struct yenta_socket *socket, int *old_irq) 506 { 507 u32 sysctl; 508 int ret; 509 510 sysctl = config_readl(socket, TI113X_SYSTEM_CONTROL); 511 if (sysctl & TI122X_SCR_INTRTIE) 512 return 0; 513 514 /* align */ 515 ret = ti12xx_align_irqs(socket, old_irq); 516 if (!ret) 517 return 0; 518 519 /* tie */ 520 sysctl |= TI122X_SCR_INTRTIE; 521 config_writel(socket, TI113X_SYSTEM_CONTROL, sysctl); 522 523 return 1; 524 } 525 526 /* undo what ti12xx_tie_interrupts() did */ ti12xx_untie_interrupts(struct yenta_socket * socket,int old_irq)527 static void ti12xx_untie_interrupts(struct yenta_socket *socket, int old_irq) 528 { 529 u32 sysctl = config_readl(socket, TI113X_SYSTEM_CONTROL); 530 sysctl &= ~TI122X_SCR_INTRTIE; 531 config_writel(socket, TI113X_SYSTEM_CONTROL, sysctl); 532 533 socket->cb_irq = socket->dev->irq = old_irq; 534 } 535 536 /* 537 * irqrouting for func1, plays with INTB routing 538 * only touches MFUNC for INTB routing. all other bits are taken 539 * care of in func0 already. 540 */ ti12xx_irqroute_func1(struct yenta_socket * socket)541 static void ti12xx_irqroute_func1(struct yenta_socket *socket) 542 { 543 u32 mfunc, mfunc_old, devctl, sysctl; 544 int pci_irq_status; 545 546 mfunc = mfunc_old = config_readl(socket, TI122X_MFUNC); 547 devctl = config_readb(socket, TI113X_DEVICE_CONTROL); 548 dev_info(&socket->dev->dev, "TI: mfunc 0x%08x, devctl 0x%02x\n", 549 mfunc, devctl); 550 551 /* if IRQs are configured as tied, align irq of func1 with func0 */ 552 sysctl = config_readl(socket, TI113X_SYSTEM_CONTROL); 553 if (sysctl & TI122X_SCR_INTRTIE) 554 ti12xx_align_irqs(socket, NULL); 555 556 /* make sure PCI interrupts are enabled before probing */ 557 ti_init(socket); 558 559 /* test PCI interrupts first. only try fixing if return value is 0! */ 560 pci_irq_status = yenta_probe_cb_irq(socket); 561 if (pci_irq_status) 562 goto out; 563 564 /* 565 * We're here which means PCI interrupts are _not_ delivered. try to 566 * find the right setting 567 */ 568 dev_info(&socket->dev->dev, 569 "TI: probing PCI interrupt failed, trying to fix\n"); 570 571 /* if all serial: set INTRTIE, probe again */ 572 if ((devctl & TI113X_DCR_IMODE_MASK) == TI12XX_DCR_IMODE_ALL_SERIAL) { 573 int old_irq; 574 575 if (ti12xx_tie_interrupts(socket, &old_irq)) { 576 pci_irq_status = yenta_probe_cb_irq(socket); 577 if (pci_irq_status == 1) { 578 dev_info(&socket->dev->dev, 579 "TI: all-serial interrupts, tied ok\n"); 580 goto out; 581 } 582 583 ti12xx_untie_interrupts(socket, old_irq); 584 } 585 } 586 /* parallel PCI: route INTB, probe again */ 587 else { 588 int old_irq; 589 590 switch (socket->dev->device) { 591 case PCI_DEVICE_ID_TI_1250: 592 /* the 1250 has one pin for IRQSER/INTB depending on devctl */ 593 break; 594 595 case PCI_DEVICE_ID_TI_1251A: 596 case PCI_DEVICE_ID_TI_1251B: 597 case PCI_DEVICE_ID_TI_1450: 598 /* 599 * those have a pin for IRQSER/INTB plus INTB in MFUNC0 600 * we alread probed the shared pin, now go for MFUNC0 601 */ 602 mfunc = (mfunc & ~TI122X_MFUNC0_MASK) | TI125X_MFUNC0_INTB; 603 break; 604 605 default: 606 mfunc = (mfunc & ~TI122X_MFUNC1_MASK) | TI122X_MFUNC1_INTB; 607 break; 608 } 609 610 /* write, probe */ 611 if (mfunc != mfunc_old) { 612 config_writel(socket, TI122X_MFUNC, mfunc); 613 614 pci_irq_status = yenta_probe_cb_irq(socket); 615 if (pci_irq_status == 1) { 616 dev_info(&socket->dev->dev, 617 "TI: parallel PCI interrupts ok\n"); 618 goto out; 619 } 620 621 mfunc = mfunc_old; 622 config_writel(socket, TI122X_MFUNC, mfunc); 623 624 if (pci_irq_status == -1) 625 goto out; 626 } 627 628 /* still nothing: set INTRTIE */ 629 if (ti12xx_tie_interrupts(socket, &old_irq)) { 630 pci_irq_status = yenta_probe_cb_irq(socket); 631 if (pci_irq_status == 1) { 632 dev_info(&socket->dev->dev, 633 "TI: parallel PCI interrupts, tied ok\n"); 634 goto out; 635 } 636 637 ti12xx_untie_interrupts(socket, old_irq); 638 } 639 } 640 641 out: 642 if (pci_irq_status < 1) { 643 socket->cb_irq = 0; 644 dev_info(&socket->dev->dev, 645 "TI: no PCI interrupts. Fish. Please report.\n"); 646 } 647 } 648 649 650 /* Returns true value if the second slot of a two-slot controller is empty */ ti12xx_2nd_slot_empty(struct yenta_socket * socket)651 static int ti12xx_2nd_slot_empty(struct yenta_socket *socket) 652 { 653 struct pci_dev *func; 654 struct yenta_socket *slot2; 655 int devfn; 656 unsigned int state; 657 int ret = 1; 658 u32 sysctl; 659 660 /* catch the two-slot controllers */ 661 switch (socket->dev->device) { 662 case PCI_DEVICE_ID_TI_1220: 663 case PCI_DEVICE_ID_TI_1221: 664 case PCI_DEVICE_ID_TI_1225: 665 case PCI_DEVICE_ID_TI_1251A: 666 case PCI_DEVICE_ID_TI_1251B: 667 case PCI_DEVICE_ID_TI_1420: 668 case PCI_DEVICE_ID_TI_1450: 669 case PCI_DEVICE_ID_TI_1451A: 670 case PCI_DEVICE_ID_TI_1520: 671 case PCI_DEVICE_ID_TI_1620: 672 case PCI_DEVICE_ID_TI_4520: 673 case PCI_DEVICE_ID_TI_4450: 674 case PCI_DEVICE_ID_TI_4451: 675 /* 676 * there are way more, but they need to be added in yenta_socket.c 677 * and pci_ids.h first anyway. 678 */ 679 break; 680 681 case PCI_DEVICE_ID_TI_XX12: 682 case PCI_DEVICE_ID_TI_X515: 683 case PCI_DEVICE_ID_TI_X420: 684 case PCI_DEVICE_ID_TI_X620: 685 case PCI_DEVICE_ID_TI_XX21_XX11: 686 case PCI_DEVICE_ID_TI_7410: 687 case PCI_DEVICE_ID_TI_7610: 688 /* 689 * those are either single or dual slot CB with additional functions 690 * like 1394, smartcard reader, etc. check the TIEALL flag for them 691 * the TIEALL flag binds the IRQ of all functions together. 692 * we catch the single slot variants later. 693 */ 694 sysctl = config_readl(socket, TI113X_SYSTEM_CONTROL); 695 if (sysctl & TIXX21_SCR_TIEALL) 696 return 0; 697 698 break; 699 700 /* single-slot controllers have the 2nd slot empty always :) */ 701 default: 702 return 1; 703 } 704 705 /* get other slot */ 706 devfn = socket->dev->devfn & ~0x07; 707 func = pci_get_slot(socket->dev->bus, 708 (socket->dev->devfn & 0x07) ? devfn : devfn | 0x01); 709 if (!func) 710 return 1; 711 712 /* 713 * check that the device id of both slots match. this is needed for the 714 * XX21 and the XX11 controller that share the same device id for single 715 * and dual slot controllers. return '2nd slot empty'. we already checked 716 * if the interrupt is tied to another function. 717 */ 718 if (socket->dev->device != func->device) 719 goto out; 720 721 slot2 = pci_get_drvdata(func); 722 if (!slot2) 723 goto out; 724 725 /* check state */ 726 yenta_get_status(&slot2->socket, &state); 727 if (state & SS_DETECT) { 728 ret = 0; 729 goto out; 730 } 731 732 out: 733 pci_dev_put(func); 734 return ret; 735 } 736 737 /* 738 * TI specifiy parts for the power hook. 739 * 740 * some TI's with some CB's produces interrupt storm on power on. it has been 741 * seen with atheros wlan cards on TI1225 and TI1410. solution is simply to 742 * disable any CB interrupts during this time. 743 */ ti12xx_power_hook(struct pcmcia_socket * sock,int operation)744 static int ti12xx_power_hook(struct pcmcia_socket *sock, int operation) 745 { 746 struct yenta_socket *socket = container_of(sock, struct yenta_socket, socket); 747 u32 mfunc, devctl, sysctl; 748 u8 gpio3; 749 750 /* only POWER_PRE and POWER_POST are interesting */ 751 if ((operation != HOOK_POWER_PRE) && (operation != HOOK_POWER_POST)) 752 return 0; 753 754 devctl = config_readb(socket, TI113X_DEVICE_CONTROL); 755 sysctl = config_readl(socket, TI113X_SYSTEM_CONTROL); 756 mfunc = config_readl(socket, TI122X_MFUNC); 757 758 /* 759 * all serial/tied: only disable when modparm set. always doing it 760 * would mean a regression for working setups 'cos it disables the 761 * interrupts for both both slots on 2-slot controllers 762 * (and users of single slot controllers where it's save have to 763 * live with setting the modparm, most don't have to anyway) 764 */ 765 if (((devctl & TI113X_DCR_IMODE_MASK) == TI12XX_DCR_IMODE_ALL_SERIAL) && 766 (pwr_irqs_off || ti12xx_2nd_slot_empty(socket))) { 767 switch (socket->dev->device) { 768 case PCI_DEVICE_ID_TI_1250: 769 case PCI_DEVICE_ID_TI_1251A: 770 case PCI_DEVICE_ID_TI_1251B: 771 case PCI_DEVICE_ID_TI_1450: 772 case PCI_DEVICE_ID_TI_1451A: 773 case PCI_DEVICE_ID_TI_4450: 774 case PCI_DEVICE_ID_TI_4451: 775 /* these chips have no IRQSER setting in MFUNC3 */ 776 break; 777 778 default: 779 if (operation == HOOK_POWER_PRE) 780 mfunc = (mfunc & ~TI122X_MFUNC3_MASK); 781 else 782 mfunc = (mfunc & ~TI122X_MFUNC3_MASK) | TI122X_MFUNC3_IRQSER; 783 } 784 785 return 0; 786 } 787 788 /* do the job differently for func0/1 */ 789 if ((PCI_FUNC(socket->dev->devfn) == 0) || 790 ((sysctl & TI122X_SCR_INTRTIE) && 791 (pwr_irqs_off || ti12xx_2nd_slot_empty(socket)))) { 792 /* some bridges are different */ 793 switch (socket->dev->device) { 794 case PCI_DEVICE_ID_TI_1250: 795 case PCI_DEVICE_ID_TI_1251A: 796 case PCI_DEVICE_ID_TI_1251B: 797 case PCI_DEVICE_ID_TI_1450: 798 /* those oldies use gpio3 for INTA */ 799 gpio3 = config_readb(socket, TI1250_GPIO3_CONTROL); 800 if (operation == HOOK_POWER_PRE) 801 gpio3 = (gpio3 & ~TI1250_GPIO_MODE_MASK) | 0x40; 802 else 803 gpio3 &= ~TI1250_GPIO_MODE_MASK; 804 config_writeb(socket, TI1250_GPIO3_CONTROL, gpio3); 805 break; 806 807 default: 808 /* all new bridges are the same */ 809 if (operation == HOOK_POWER_PRE) 810 mfunc &= ~TI122X_MFUNC0_MASK; 811 else 812 mfunc |= TI122X_MFUNC0_INTA; 813 config_writel(socket, TI122X_MFUNC, mfunc); 814 } 815 } else { 816 switch (socket->dev->device) { 817 case PCI_DEVICE_ID_TI_1251A: 818 case PCI_DEVICE_ID_TI_1251B: 819 case PCI_DEVICE_ID_TI_1450: 820 /* those have INTA elsewhere and INTB in MFUNC0 */ 821 if (operation == HOOK_POWER_PRE) 822 mfunc &= ~TI122X_MFUNC0_MASK; 823 else 824 mfunc |= TI125X_MFUNC0_INTB; 825 config_writel(socket, TI122X_MFUNC, mfunc); 826 827 break; 828 829 default: 830 /* all new bridges are the same */ 831 if (operation == HOOK_POWER_PRE) 832 mfunc &= ~TI122X_MFUNC1_MASK; 833 else 834 mfunc |= TI122X_MFUNC1_INTB; 835 config_writel(socket, TI122X_MFUNC, mfunc); 836 } 837 } 838 839 return 0; 840 } 841 ti12xx_override(struct yenta_socket * socket)842 static int ti12xx_override(struct yenta_socket *socket) 843 { 844 u32 val, val_orig; 845 846 /* make sure that memory burst is active */ 847 val_orig = val = config_readl(socket, TI113X_SYSTEM_CONTROL); 848 if (disable_clkrun && PCI_FUNC(socket->dev->devfn) == 0) { 849 dev_info(&socket->dev->dev, "Disabling CLKRUN feature\n"); 850 val |= TI113X_SCR_KEEPCLK; 851 } 852 if (!(val & TI122X_SCR_MRBURSTUP)) { 853 dev_info(&socket->dev->dev, 854 "Enabling burst memory read transactions\n"); 855 val |= TI122X_SCR_MRBURSTUP; 856 } 857 if (val_orig != val) 858 config_writel(socket, TI113X_SYSTEM_CONTROL, val); 859 860 /* 861 * Yenta expects controllers to use CSCINT to route 862 * CSC interrupts to PCI rather than INTVAL. 863 */ 864 val = config_readb(socket, TI1250_DIAGNOSTIC); 865 dev_info(&socket->dev->dev, "Using %s to route CSC interrupts to PCI\n", 866 (val & TI1250_DIAG_PCI_CSC) ? "CSCINT" : "INTVAL"); 867 dev_info(&socket->dev->dev, "Routing CardBus interrupts to %s\n", 868 (val & TI1250_DIAG_PCI_IREQ) ? "PCI" : "ISA"); 869 870 /* do irqrouting, depending on function */ 871 if (PCI_FUNC(socket->dev->devfn) == 0) 872 ti12xx_irqroute_func0(socket); 873 else 874 ti12xx_irqroute_func1(socket); 875 876 /* install power hook */ 877 socket->socket.power_hook = ti12xx_power_hook; 878 879 return ti_override(socket); 880 } 881 882 ti1250_override(struct yenta_socket * socket)883 static int ti1250_override(struct yenta_socket *socket) 884 { 885 u8 old, diag; 886 887 old = config_readb(socket, TI1250_DIAGNOSTIC); 888 diag = old & ~(TI1250_DIAG_PCI_CSC | TI1250_DIAG_PCI_IREQ); 889 if (socket->cb_irq) 890 diag |= TI1250_DIAG_PCI_CSC | TI1250_DIAG_PCI_IREQ; 891 892 if (diag != old) { 893 dev_info(&socket->dev->dev, 894 "adjusting diagnostic: %02x -> %02x\n", 895 old, diag); 896 config_writeb(socket, TI1250_DIAGNOSTIC, diag); 897 } 898 899 return ti12xx_override(socket); 900 } 901 902 903 /** 904 * EnE specific part. EnE bridges are register compatible with TI bridges but 905 * have their own test registers and more important their own little problems. 906 * Some fixup code to make everybody happy (TM). 907 */ 908 909 #ifdef CONFIG_YENTA_ENE_TUNE 910 /* 911 * set/clear various test bits: 912 * Defaults to clear the bit. 913 * - mask (u8) defines what bits to change 914 * - bits (u8) is the values to change them to 915 * -> it's 916 * current = (current & ~mask) | bits 917 */ 918 /* pci ids of devices that wants to have the bit set */ 919 #define DEVID(_vend,_dev,_subvend,_subdev,mask,bits) { \ 920 .vendor = _vend, \ 921 .device = _dev, \ 922 .subvendor = _subvend, \ 923 .subdevice = _subdev, \ 924 .driver_data = ((mask) << 8 | (bits)), \ 925 } 926 static struct pci_device_id ene_tune_tbl[] = { 927 /* Echo Audio products based on motorola DSP56301 and DSP56361 */ 928 DEVID(PCI_VENDOR_ID_MOTOROLA, 0x1801, 0xECC0, PCI_ANY_ID, 929 ENE_TEST_C9_TLTENABLE | ENE_TEST_C9_PFENABLE, ENE_TEST_C9_TLTENABLE), 930 DEVID(PCI_VENDOR_ID_MOTOROLA, 0x3410, 0xECC0, PCI_ANY_ID, 931 ENE_TEST_C9_TLTENABLE | ENE_TEST_C9_PFENABLE, ENE_TEST_C9_TLTENABLE), 932 933 {} 934 }; 935 ene_tune_bridge(struct pcmcia_socket * sock,struct pci_bus * bus)936 static void ene_tune_bridge(struct pcmcia_socket *sock, struct pci_bus *bus) 937 { 938 struct yenta_socket *socket = container_of(sock, struct yenta_socket, socket); 939 struct pci_dev *dev; 940 struct pci_device_id *id = NULL; 941 u8 test_c9, old_c9, mask, bits; 942 943 list_for_each_entry(dev, &bus->devices, bus_list) { 944 id = (struct pci_device_id *) pci_match_id(ene_tune_tbl, dev); 945 if (id) 946 break; 947 } 948 949 test_c9 = old_c9 = config_readb(socket, ENE_TEST_C9); 950 if (id) { 951 mask = (id->driver_data >> 8) & 0xFF; 952 bits = id->driver_data & 0xFF; 953 954 test_c9 = (test_c9 & ~mask) | bits; 955 } 956 else 957 /* default to clear TLTEnable bit, old behaviour */ 958 test_c9 &= ~ENE_TEST_C9_TLTENABLE; 959 960 dev_info(&socket->dev->dev, 961 "EnE: changing testregister 0xC9, %02x -> %02x\n", 962 old_c9, test_c9); 963 config_writeb(socket, ENE_TEST_C9, test_c9); 964 } 965 ene_override(struct yenta_socket * socket)966 static int ene_override(struct yenta_socket *socket) 967 { 968 /* install tune_bridge() function */ 969 socket->socket.tune_bridge = ene_tune_bridge; 970 971 return ti1250_override(socket); 972 } 973 #else 974 # define ene_override ti1250_override 975 #endif /* !CONFIG_YENTA_ENE_TUNE */ 976 977 #endif /* _LINUX_TI113X_H */ 978 979