1 /* 2 * DBAu1200/PBAu1200 board platform device registration 3 * 4 * Copyright (C) 2008-2011 Manuel Lauss 5 * 6 * This program is free software; you can redistribute it and/or modify 7 * it under the terms of the GNU General Public License as published by 8 * the Free Software Foundation; either version 2 of the License, or 9 * (at your option) any later version. 10 * 11 * This program is distributed in the hope that it will be useful, 12 * but WITHOUT ANY WARRANTY; without even the implied warranty of 13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 14 * GNU General Public License for more details. 15 * 16 * You should have received a copy of the GNU General Public License 17 * along with this program; if not, write to the Free Software 18 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA 19 */ 20 21 #include <linux/clk.h> 22 #include <linux/dma-mapping.h> 23 #include <linux/gpio.h> 24 #include <linux/i2c.h> 25 #include <linux/init.h> 26 #include <linux/module.h> 27 #include <linux/interrupt.h> 28 #include <linux/io.h> 29 #include <linux/leds.h> 30 #include <linux/mmc/host.h> 31 #include <linux/mtd/mtd.h> 32 #include <linux/mtd/nand.h> 33 #include <linux/mtd/partitions.h> 34 #include <linux/platform_device.h> 35 #include <linux/serial_8250.h> 36 #include <linux/spi/spi.h> 37 #include <linux/spi/flash.h> 38 #include <linux/smc91x.h> 39 #include <linux/ata_platform.h> 40 #include <asm/mach-au1x00/au1000.h> 41 #include <asm/mach-au1x00/au1100_mmc.h> 42 #include <asm/mach-au1x00/au1xxx_dbdma.h> 43 #include <asm/mach-au1x00/au1xxx_psc.h> 44 #include <asm/mach-au1x00/au1200fb.h> 45 #include <asm/mach-au1x00/au1550_spi.h> 46 #include <asm/mach-db1x00/bcsr.h> 47 48 #include "platform.h" 49 50 #define BCSR_INT_IDE 0x0001 51 #define BCSR_INT_ETH 0x0002 52 #define BCSR_INT_PC0 0x0004 53 #define BCSR_INT_PC0STSCHG 0x0008 54 #define BCSR_INT_PC1 0x0010 55 #define BCSR_INT_PC1STSCHG 0x0020 56 #define BCSR_INT_DC 0x0040 57 #define BCSR_INT_FLASHBUSY 0x0080 58 #define BCSR_INT_PC0INSERT 0x0100 59 #define BCSR_INT_PC0EJECT 0x0200 60 #define BCSR_INT_PC1INSERT 0x0400 61 #define BCSR_INT_PC1EJECT 0x0800 62 #define BCSR_INT_SD0INSERT 0x1000 63 #define BCSR_INT_SD0EJECT 0x2000 64 #define BCSR_INT_SD1INSERT 0x4000 65 #define BCSR_INT_SD1EJECT 0x8000 66 67 #define DB1200_IDE_PHYS_ADDR 0x18800000 68 #define DB1200_IDE_REG_SHIFT 5 69 #define DB1200_IDE_PHYS_LEN (16 << DB1200_IDE_REG_SHIFT) 70 #define DB1200_ETH_PHYS_ADDR 0x19000300 71 #define DB1200_NAND_PHYS_ADDR 0x20000000 72 73 #define PB1200_IDE_PHYS_ADDR 0x0C800000 74 #define PB1200_ETH_PHYS_ADDR 0x0D000300 75 #define PB1200_NAND_PHYS_ADDR 0x1C000000 76 77 #define DB1200_INT_BEGIN (AU1000_MAX_INTR + 1) 78 #define DB1200_IDE_INT (DB1200_INT_BEGIN + 0) 79 #define DB1200_ETH_INT (DB1200_INT_BEGIN + 1) 80 #define DB1200_PC0_INT (DB1200_INT_BEGIN + 2) 81 #define DB1200_PC0_STSCHG_INT (DB1200_INT_BEGIN + 3) 82 #define DB1200_PC1_INT (DB1200_INT_BEGIN + 4) 83 #define DB1200_PC1_STSCHG_INT (DB1200_INT_BEGIN + 5) 84 #define DB1200_DC_INT (DB1200_INT_BEGIN + 6) 85 #define DB1200_FLASHBUSY_INT (DB1200_INT_BEGIN + 7) 86 #define DB1200_PC0_INSERT_INT (DB1200_INT_BEGIN + 8) 87 #define DB1200_PC0_EJECT_INT (DB1200_INT_BEGIN + 9) 88 #define DB1200_PC1_INSERT_INT (DB1200_INT_BEGIN + 10) 89 #define DB1200_PC1_EJECT_INT (DB1200_INT_BEGIN + 11) 90 #define DB1200_SD0_INSERT_INT (DB1200_INT_BEGIN + 12) 91 #define DB1200_SD0_EJECT_INT (DB1200_INT_BEGIN + 13) 92 #define PB1200_SD1_INSERT_INT (DB1200_INT_BEGIN + 14) 93 #define PB1200_SD1_EJECT_INT (DB1200_INT_BEGIN + 15) 94 #define DB1200_INT_END (DB1200_INT_BEGIN + 15) 95 96 const char *get_system_type(void); 97 98 static int __init db1200_detect_board(void) 99 { 100 int bid; 101 102 /* try the DB1200 first */ 103 bcsr_init(DB1200_BCSR_PHYS_ADDR, 104 DB1200_BCSR_PHYS_ADDR + DB1200_BCSR_HEXLED_OFS); 105 if (BCSR_WHOAMI_DB1200 == BCSR_WHOAMI_BOARD(bcsr_read(BCSR_WHOAMI))) { 106 unsigned short t = bcsr_read(BCSR_HEXLEDS); 107 bcsr_write(BCSR_HEXLEDS, ~t); 108 if (bcsr_read(BCSR_HEXLEDS) != t) { 109 bcsr_write(BCSR_HEXLEDS, t); 110 return 0; 111 } 112 } 113 114 /* okay, try the PB1200 then */ 115 bcsr_init(PB1200_BCSR_PHYS_ADDR, 116 PB1200_BCSR_PHYS_ADDR + PB1200_BCSR_HEXLED_OFS); 117 bid = BCSR_WHOAMI_BOARD(bcsr_read(BCSR_WHOAMI)); 118 if ((bid == BCSR_WHOAMI_PB1200_DDR1) || 119 (bid == BCSR_WHOAMI_PB1200_DDR2)) { 120 unsigned short t = bcsr_read(BCSR_HEXLEDS); 121 bcsr_write(BCSR_HEXLEDS, ~t); 122 if (bcsr_read(BCSR_HEXLEDS) != t) { 123 bcsr_write(BCSR_HEXLEDS, t); 124 return 0; 125 } 126 } 127 128 return 1; /* it's neither */ 129 } 130 131 int __init db1200_board_setup(void) 132 { 133 unsigned short whoami; 134 135 if (db1200_detect_board()) 136 return -ENODEV; 137 138 whoami = bcsr_read(BCSR_WHOAMI); 139 switch (BCSR_WHOAMI_BOARD(whoami)) { 140 case BCSR_WHOAMI_PB1200_DDR1: 141 case BCSR_WHOAMI_PB1200_DDR2: 142 case BCSR_WHOAMI_DB1200: 143 break; 144 default: 145 return -ENODEV; 146 } 147 148 printk(KERN_INFO "Alchemy/AMD/RMI %s Board, CPLD Rev %d" 149 " Board-ID %d Daughtercard ID %d\n", get_system_type(), 150 (whoami >> 4) & 0xf, (whoami >> 8) & 0xf, whoami & 0xf); 151 152 return 0; 153 } 154 155 /******************************************************************************/ 156 157 static struct mtd_partition db1200_spiflash_parts[] = { 158 { 159 .name = "spi_flash", 160 .offset = 0, 161 .size = MTDPART_SIZ_FULL, 162 }, 163 }; 164 165 static struct flash_platform_data db1200_spiflash_data = { 166 .name = "s25fl001", 167 .parts = db1200_spiflash_parts, 168 .nr_parts = ARRAY_SIZE(db1200_spiflash_parts), 169 .type = "m25p10", 170 }; 171 172 static struct spi_board_info db1200_spi_devs[] __initdata = { 173 { 174 /* TI TMP121AIDBVR temp sensor */ 175 .modalias = "tmp121", 176 .max_speed_hz = 2000000, 177 .bus_num = 0, 178 .chip_select = 0, 179 .mode = 0, 180 }, 181 { 182 /* Spansion S25FL001D0FMA SPI flash */ 183 .modalias = "m25p80", 184 .max_speed_hz = 50000000, 185 .bus_num = 0, 186 .chip_select = 1, 187 .mode = 0, 188 .platform_data = &db1200_spiflash_data, 189 }, 190 }; 191 192 static struct i2c_board_info db1200_i2c_devs[] __initdata = { 193 { I2C_BOARD_INFO("24c04", 0x52), }, /* AT24C04-10 I2C eeprom */ 194 { I2C_BOARD_INFO("ne1619", 0x2d), }, /* adm1025-compat hwmon */ 195 { I2C_BOARD_INFO("wm8731", 0x1b), }, /* I2S audio codec WM8731 */ 196 }; 197 198 /**********************************************************************/ 199 200 static void au1200_nand_cmd_ctrl(struct mtd_info *mtd, int cmd, 201 unsigned int ctrl) 202 { 203 struct nand_chip *this = mtd->priv; 204 unsigned long ioaddr = (unsigned long)this->IO_ADDR_W; 205 206 ioaddr &= 0xffffff00; 207 208 if (ctrl & NAND_CLE) { 209 ioaddr += MEM_STNAND_CMD; 210 } else if (ctrl & NAND_ALE) { 211 ioaddr += MEM_STNAND_ADDR; 212 } else { 213 /* assume we want to r/w real data by default */ 214 ioaddr += MEM_STNAND_DATA; 215 } 216 this->IO_ADDR_R = this->IO_ADDR_W = (void __iomem *)ioaddr; 217 if (cmd != NAND_CMD_NONE) { 218 __raw_writeb(cmd, this->IO_ADDR_W); 219 wmb(); 220 } 221 } 222 223 static int au1200_nand_device_ready(struct mtd_info *mtd) 224 { 225 return alchemy_rdsmem(AU1000_MEM_STSTAT) & 1; 226 } 227 228 static struct mtd_partition db1200_nand_parts[] = { 229 { 230 .name = "NAND FS 0", 231 .offset = 0, 232 .size = 8 * 1024 * 1024, 233 }, 234 { 235 .name = "NAND FS 1", 236 .offset = MTDPART_OFS_APPEND, 237 .size = MTDPART_SIZ_FULL 238 }, 239 }; 240 241 struct platform_nand_data db1200_nand_platdata = { 242 .chip = { 243 .nr_chips = 1, 244 .chip_offset = 0, 245 .nr_partitions = ARRAY_SIZE(db1200_nand_parts), 246 .partitions = db1200_nand_parts, 247 .chip_delay = 20, 248 }, 249 .ctrl = { 250 .dev_ready = au1200_nand_device_ready, 251 .cmd_ctrl = au1200_nand_cmd_ctrl, 252 }, 253 }; 254 255 static struct resource db1200_nand_res[] = { 256 [0] = { 257 .start = DB1200_NAND_PHYS_ADDR, 258 .end = DB1200_NAND_PHYS_ADDR + 0xff, 259 .flags = IORESOURCE_MEM, 260 }, 261 }; 262 263 static struct platform_device db1200_nand_dev = { 264 .name = "gen_nand", 265 .num_resources = ARRAY_SIZE(db1200_nand_res), 266 .resource = db1200_nand_res, 267 .id = -1, 268 .dev = { 269 .platform_data = &db1200_nand_platdata, 270 } 271 }; 272 273 /**********************************************************************/ 274 275 static struct smc91x_platdata db1200_eth_data = { 276 .flags = SMC91X_NOWAIT | SMC91X_USE_16BIT, 277 .leda = RPC_LED_100_10, 278 .ledb = RPC_LED_TX_RX, 279 }; 280 281 static struct resource db1200_eth_res[] = { 282 [0] = { 283 .start = DB1200_ETH_PHYS_ADDR, 284 .end = DB1200_ETH_PHYS_ADDR + 0xf, 285 .flags = IORESOURCE_MEM, 286 }, 287 [1] = { 288 .start = DB1200_ETH_INT, 289 .end = DB1200_ETH_INT, 290 .flags = IORESOURCE_IRQ, 291 }, 292 }; 293 294 static struct platform_device db1200_eth_dev = { 295 .dev = { 296 .platform_data = &db1200_eth_data, 297 }, 298 .name = "smc91x", 299 .id = -1, 300 .num_resources = ARRAY_SIZE(db1200_eth_res), 301 .resource = db1200_eth_res, 302 }; 303 304 /**********************************************************************/ 305 306 static struct pata_platform_info db1200_ide_info = { 307 .ioport_shift = DB1200_IDE_REG_SHIFT, 308 }; 309 310 #define IDE_ALT_START (14 << DB1200_IDE_REG_SHIFT) 311 static struct resource db1200_ide_res[] = { 312 [0] = { 313 .start = DB1200_IDE_PHYS_ADDR, 314 .end = DB1200_IDE_PHYS_ADDR + IDE_ALT_START - 1, 315 .flags = IORESOURCE_MEM, 316 }, 317 [1] = { 318 .start = DB1200_IDE_PHYS_ADDR + IDE_ALT_START, 319 .end = DB1200_IDE_PHYS_ADDR + DB1200_IDE_PHYS_LEN - 1, 320 .flags = IORESOURCE_MEM, 321 }, 322 [2] = { 323 .start = DB1200_IDE_INT, 324 .end = DB1200_IDE_INT, 325 .flags = IORESOURCE_IRQ, 326 }, 327 }; 328 329 static u64 au1200_ide_dmamask = DMA_BIT_MASK(32); 330 331 static struct platform_device db1200_ide_dev = { 332 .name = "pata_platform", 333 .id = 0, 334 .dev = { 335 .dma_mask = &au1200_ide_dmamask, 336 .coherent_dma_mask = DMA_BIT_MASK(32), 337 .platform_data = &db1200_ide_info, 338 }, 339 .num_resources = ARRAY_SIZE(db1200_ide_res), 340 .resource = db1200_ide_res, 341 }; 342 343 /**********************************************************************/ 344 345 /* SD carddetects: they're supposed to be edge-triggered, but ack 346 * doesn't seem to work (CPLD Rev 2). Instead, the screaming one 347 * is disabled and its counterpart enabled. The 500ms timeout is 348 * because the carddetect isn't debounced in hardware. 349 */ 350 static irqreturn_t db1200_mmc_cd(int irq, void *ptr) 351 { 352 void(*mmc_cd)(struct mmc_host *, unsigned long); 353 354 if (irq == DB1200_SD0_INSERT_INT) { 355 disable_irq_nosync(DB1200_SD0_INSERT_INT); 356 enable_irq(DB1200_SD0_EJECT_INT); 357 } else { 358 disable_irq_nosync(DB1200_SD0_EJECT_INT); 359 enable_irq(DB1200_SD0_INSERT_INT); 360 } 361 362 /* link against CONFIG_MMC=m */ 363 mmc_cd = symbol_get(mmc_detect_change); 364 if (mmc_cd) { 365 mmc_cd(ptr, msecs_to_jiffies(500)); 366 symbol_put(mmc_detect_change); 367 } 368 369 return IRQ_HANDLED; 370 } 371 372 static int db1200_mmc_cd_setup(void *mmc_host, int en) 373 { 374 int ret; 375 376 if (en) { 377 ret = request_irq(DB1200_SD0_INSERT_INT, db1200_mmc_cd, 378 0, "sd_insert", mmc_host); 379 if (ret) 380 goto out; 381 382 ret = request_irq(DB1200_SD0_EJECT_INT, db1200_mmc_cd, 383 0, "sd_eject", mmc_host); 384 if (ret) { 385 free_irq(DB1200_SD0_INSERT_INT, mmc_host); 386 goto out; 387 } 388 389 if (bcsr_read(BCSR_SIGSTAT) & BCSR_INT_SD0INSERT) 390 enable_irq(DB1200_SD0_EJECT_INT); 391 else 392 enable_irq(DB1200_SD0_INSERT_INT); 393 394 } else { 395 free_irq(DB1200_SD0_INSERT_INT, mmc_host); 396 free_irq(DB1200_SD0_EJECT_INT, mmc_host); 397 } 398 ret = 0; 399 out: 400 return ret; 401 } 402 403 static void db1200_mmc_set_power(void *mmc_host, int state) 404 { 405 if (state) { 406 bcsr_mod(BCSR_BOARD, 0, BCSR_BOARD_SD0PWR); 407 msleep(400); /* stabilization time */ 408 } else 409 bcsr_mod(BCSR_BOARD, BCSR_BOARD_SD0PWR, 0); 410 } 411 412 static int db1200_mmc_card_readonly(void *mmc_host) 413 { 414 return (bcsr_read(BCSR_STATUS) & BCSR_STATUS_SD0WP) ? 1 : 0; 415 } 416 417 static int db1200_mmc_card_inserted(void *mmc_host) 418 { 419 return (bcsr_read(BCSR_SIGSTAT) & BCSR_INT_SD0INSERT) ? 1 : 0; 420 } 421 422 static void db1200_mmcled_set(struct led_classdev *led, 423 enum led_brightness brightness) 424 { 425 if (brightness != LED_OFF) 426 bcsr_mod(BCSR_LEDS, BCSR_LEDS_LED0, 0); 427 else 428 bcsr_mod(BCSR_LEDS, 0, BCSR_LEDS_LED0); 429 } 430 431 static struct led_classdev db1200_mmc_led = { 432 .brightness_set = db1200_mmcled_set, 433 }; 434 435 /* -- */ 436 437 static irqreturn_t pb1200_mmc1_cd(int irq, void *ptr) 438 { 439 void(*mmc_cd)(struct mmc_host *, unsigned long); 440 441 if (irq == PB1200_SD1_INSERT_INT) { 442 disable_irq_nosync(PB1200_SD1_INSERT_INT); 443 enable_irq(PB1200_SD1_EJECT_INT); 444 } else { 445 disable_irq_nosync(PB1200_SD1_EJECT_INT); 446 enable_irq(PB1200_SD1_INSERT_INT); 447 } 448 449 /* link against CONFIG_MMC=m */ 450 mmc_cd = symbol_get(mmc_detect_change); 451 if (mmc_cd) { 452 mmc_cd(ptr, msecs_to_jiffies(500)); 453 symbol_put(mmc_detect_change); 454 } 455 456 return IRQ_HANDLED; 457 } 458 459 static int pb1200_mmc1_cd_setup(void *mmc_host, int en) 460 { 461 int ret; 462 463 if (en) { 464 ret = request_irq(PB1200_SD1_INSERT_INT, pb1200_mmc1_cd, 0, 465 "sd1_insert", mmc_host); 466 if (ret) 467 goto out; 468 469 ret = request_irq(PB1200_SD1_EJECT_INT, pb1200_mmc1_cd, 0, 470 "sd1_eject", mmc_host); 471 if (ret) { 472 free_irq(PB1200_SD1_INSERT_INT, mmc_host); 473 goto out; 474 } 475 476 if (bcsr_read(BCSR_SIGSTAT) & BCSR_INT_SD1INSERT) 477 enable_irq(PB1200_SD1_EJECT_INT); 478 else 479 enable_irq(PB1200_SD1_INSERT_INT); 480 481 } else { 482 free_irq(PB1200_SD1_INSERT_INT, mmc_host); 483 free_irq(PB1200_SD1_EJECT_INT, mmc_host); 484 } 485 ret = 0; 486 out: 487 return ret; 488 } 489 490 static void pb1200_mmc1led_set(struct led_classdev *led, 491 enum led_brightness brightness) 492 { 493 if (brightness != LED_OFF) 494 bcsr_mod(BCSR_LEDS, BCSR_LEDS_LED1, 0); 495 else 496 bcsr_mod(BCSR_LEDS, 0, BCSR_LEDS_LED1); 497 } 498 499 static struct led_classdev pb1200_mmc1_led = { 500 .brightness_set = pb1200_mmc1led_set, 501 }; 502 503 static void pb1200_mmc1_set_power(void *mmc_host, int state) 504 { 505 if (state) { 506 bcsr_mod(BCSR_BOARD, 0, BCSR_BOARD_SD1PWR); 507 msleep(400); /* stabilization time */ 508 } else 509 bcsr_mod(BCSR_BOARD, BCSR_BOARD_SD1PWR, 0); 510 } 511 512 static int pb1200_mmc1_card_readonly(void *mmc_host) 513 { 514 return (bcsr_read(BCSR_STATUS) & BCSR_STATUS_SD1WP) ? 1 : 0; 515 } 516 517 static int pb1200_mmc1_card_inserted(void *mmc_host) 518 { 519 return (bcsr_read(BCSR_SIGSTAT) & BCSR_INT_SD1INSERT) ? 1 : 0; 520 } 521 522 523 static struct au1xmmc_platform_data db1200_mmc_platdata[2] = { 524 [0] = { 525 .cd_setup = db1200_mmc_cd_setup, 526 .set_power = db1200_mmc_set_power, 527 .card_inserted = db1200_mmc_card_inserted, 528 .card_readonly = db1200_mmc_card_readonly, 529 .led = &db1200_mmc_led, 530 }, 531 [1] = { 532 .cd_setup = pb1200_mmc1_cd_setup, 533 .set_power = pb1200_mmc1_set_power, 534 .card_inserted = pb1200_mmc1_card_inserted, 535 .card_readonly = pb1200_mmc1_card_readonly, 536 .led = &pb1200_mmc1_led, 537 }, 538 }; 539 540 static struct resource au1200_mmc0_resources[] = { 541 [0] = { 542 .start = AU1100_SD0_PHYS_ADDR, 543 .end = AU1100_SD0_PHYS_ADDR + 0xfff, 544 .flags = IORESOURCE_MEM, 545 }, 546 [1] = { 547 .start = AU1200_SD_INT, 548 .end = AU1200_SD_INT, 549 .flags = IORESOURCE_IRQ, 550 }, 551 [2] = { 552 .start = AU1200_DSCR_CMD0_SDMS_TX0, 553 .end = AU1200_DSCR_CMD0_SDMS_TX0, 554 .flags = IORESOURCE_DMA, 555 }, 556 [3] = { 557 .start = AU1200_DSCR_CMD0_SDMS_RX0, 558 .end = AU1200_DSCR_CMD0_SDMS_RX0, 559 .flags = IORESOURCE_DMA, 560 } 561 }; 562 563 static u64 au1xxx_mmc_dmamask = DMA_BIT_MASK(32); 564 565 static struct platform_device db1200_mmc0_dev = { 566 .name = "au1xxx-mmc", 567 .id = 0, 568 .dev = { 569 .dma_mask = &au1xxx_mmc_dmamask, 570 .coherent_dma_mask = DMA_BIT_MASK(32), 571 .platform_data = &db1200_mmc_platdata[0], 572 }, 573 .num_resources = ARRAY_SIZE(au1200_mmc0_resources), 574 .resource = au1200_mmc0_resources, 575 }; 576 577 static struct resource au1200_mmc1_res[] = { 578 [0] = { 579 .start = AU1100_SD1_PHYS_ADDR, 580 .end = AU1100_SD1_PHYS_ADDR + 0xfff, 581 .flags = IORESOURCE_MEM, 582 }, 583 [1] = { 584 .start = AU1200_SD_INT, 585 .end = AU1200_SD_INT, 586 .flags = IORESOURCE_IRQ, 587 }, 588 [2] = { 589 .start = AU1200_DSCR_CMD0_SDMS_TX1, 590 .end = AU1200_DSCR_CMD0_SDMS_TX1, 591 .flags = IORESOURCE_DMA, 592 }, 593 [3] = { 594 .start = AU1200_DSCR_CMD0_SDMS_RX1, 595 .end = AU1200_DSCR_CMD0_SDMS_RX1, 596 .flags = IORESOURCE_DMA, 597 } 598 }; 599 600 static struct platform_device pb1200_mmc1_dev = { 601 .name = "au1xxx-mmc", 602 .id = 1, 603 .dev = { 604 .dma_mask = &au1xxx_mmc_dmamask, 605 .coherent_dma_mask = DMA_BIT_MASK(32), 606 .platform_data = &db1200_mmc_platdata[1], 607 }, 608 .num_resources = ARRAY_SIZE(au1200_mmc1_res), 609 .resource = au1200_mmc1_res, 610 }; 611 612 /**********************************************************************/ 613 614 static int db1200fb_panel_index(void) 615 { 616 return (bcsr_read(BCSR_SWITCHES) >> 8) & 0x0f; 617 } 618 619 static int db1200fb_panel_init(void) 620 { 621 /* Apply power */ 622 bcsr_mod(BCSR_BOARD, 0, BCSR_BOARD_LCDVEE | BCSR_BOARD_LCDVDD | 623 BCSR_BOARD_LCDBL); 624 return 0; 625 } 626 627 static int db1200fb_panel_shutdown(void) 628 { 629 /* Remove power */ 630 bcsr_mod(BCSR_BOARD, BCSR_BOARD_LCDVEE | BCSR_BOARD_LCDVDD | 631 BCSR_BOARD_LCDBL, 0); 632 return 0; 633 } 634 635 static struct au1200fb_platdata db1200fb_pd = { 636 .panel_index = db1200fb_panel_index, 637 .panel_init = db1200fb_panel_init, 638 .panel_shutdown = db1200fb_panel_shutdown, 639 }; 640 641 static struct resource au1200_lcd_res[] = { 642 [0] = { 643 .start = AU1200_LCD_PHYS_ADDR, 644 .end = AU1200_LCD_PHYS_ADDR + 0x800 - 1, 645 .flags = IORESOURCE_MEM, 646 }, 647 [1] = { 648 .start = AU1200_LCD_INT, 649 .end = AU1200_LCD_INT, 650 .flags = IORESOURCE_IRQ, 651 } 652 }; 653 654 static u64 au1200_lcd_dmamask = DMA_BIT_MASK(32); 655 656 static struct platform_device au1200_lcd_dev = { 657 .name = "au1200-lcd", 658 .id = 0, 659 .dev = { 660 .dma_mask = &au1200_lcd_dmamask, 661 .coherent_dma_mask = DMA_BIT_MASK(32), 662 .platform_data = &db1200fb_pd, 663 }, 664 .num_resources = ARRAY_SIZE(au1200_lcd_res), 665 .resource = au1200_lcd_res, 666 }; 667 668 /**********************************************************************/ 669 670 static struct resource au1200_psc0_res[] = { 671 [0] = { 672 .start = AU1550_PSC0_PHYS_ADDR, 673 .end = AU1550_PSC0_PHYS_ADDR + 0xfff, 674 .flags = IORESOURCE_MEM, 675 }, 676 [1] = { 677 .start = AU1200_PSC0_INT, 678 .end = AU1200_PSC0_INT, 679 .flags = IORESOURCE_IRQ, 680 }, 681 [2] = { 682 .start = AU1200_DSCR_CMD0_PSC0_TX, 683 .end = AU1200_DSCR_CMD0_PSC0_TX, 684 .flags = IORESOURCE_DMA, 685 }, 686 [3] = { 687 .start = AU1200_DSCR_CMD0_PSC0_RX, 688 .end = AU1200_DSCR_CMD0_PSC0_RX, 689 .flags = IORESOURCE_DMA, 690 }, 691 }; 692 693 static struct platform_device db1200_i2c_dev = { 694 .name = "au1xpsc_smbus", 695 .id = 0, /* bus number */ 696 .num_resources = ARRAY_SIZE(au1200_psc0_res), 697 .resource = au1200_psc0_res, 698 }; 699 700 static void db1200_spi_cs_en(struct au1550_spi_info *spi, int cs, int pol) 701 { 702 if (cs) 703 bcsr_mod(BCSR_RESETS, 0, BCSR_RESETS_SPISEL); 704 else 705 bcsr_mod(BCSR_RESETS, BCSR_RESETS_SPISEL, 0); 706 } 707 708 static struct au1550_spi_info db1200_spi_platdata = { 709 .mainclk_hz = 50000000, /* PSC0 clock */ 710 .num_chipselect = 2, 711 .activate_cs = db1200_spi_cs_en, 712 }; 713 714 static u64 spi_dmamask = DMA_BIT_MASK(32); 715 716 static struct platform_device db1200_spi_dev = { 717 .dev = { 718 .dma_mask = &spi_dmamask, 719 .coherent_dma_mask = DMA_BIT_MASK(32), 720 .platform_data = &db1200_spi_platdata, 721 }, 722 .name = "au1550-spi", 723 .id = 0, /* bus number */ 724 .num_resources = ARRAY_SIZE(au1200_psc0_res), 725 .resource = au1200_psc0_res, 726 }; 727 728 static struct resource au1200_psc1_res[] = { 729 [0] = { 730 .start = AU1550_PSC1_PHYS_ADDR, 731 .end = AU1550_PSC1_PHYS_ADDR + 0xfff, 732 .flags = IORESOURCE_MEM, 733 }, 734 [1] = { 735 .start = AU1200_PSC1_INT, 736 .end = AU1200_PSC1_INT, 737 .flags = IORESOURCE_IRQ, 738 }, 739 [2] = { 740 .start = AU1200_DSCR_CMD0_PSC1_TX, 741 .end = AU1200_DSCR_CMD0_PSC1_TX, 742 .flags = IORESOURCE_DMA, 743 }, 744 [3] = { 745 .start = AU1200_DSCR_CMD0_PSC1_RX, 746 .end = AU1200_DSCR_CMD0_PSC1_RX, 747 .flags = IORESOURCE_DMA, 748 }, 749 }; 750 751 /* AC97 or I2S device */ 752 static struct platform_device db1200_audio_dev = { 753 /* name assigned later based on switch setting */ 754 .id = 1, /* PSC ID */ 755 .num_resources = ARRAY_SIZE(au1200_psc1_res), 756 .resource = au1200_psc1_res, 757 }; 758 759 /* DB1200 ASoC card device */ 760 static struct platform_device db1200_sound_dev = { 761 /* name assigned later based on switch setting */ 762 .id = 1, /* PSC ID */ 763 }; 764 765 static struct platform_device db1200_stac_dev = { 766 .name = "ac97-codec", 767 .id = 1, /* on PSC1 */ 768 }; 769 770 static struct platform_device db1200_audiodma_dev = { 771 .name = "au1xpsc-pcm", 772 .id = 1, /* PSC ID */ 773 }; 774 775 static struct platform_device *db1200_devs[] __initdata = { 776 NULL, /* PSC0, selected by S6.8 */ 777 &db1200_ide_dev, 778 &db1200_mmc0_dev, 779 &au1200_lcd_dev, 780 &db1200_eth_dev, 781 &db1200_nand_dev, 782 &db1200_audiodma_dev, 783 &db1200_audio_dev, 784 &db1200_stac_dev, 785 &db1200_sound_dev, 786 }; 787 788 static struct platform_device *pb1200_devs[] __initdata = { 789 &pb1200_mmc1_dev, 790 }; 791 792 /* Some peripheral base addresses differ on the PB1200 */ 793 static int __init pb1200_res_fixup(void) 794 { 795 /* CPLD Revs earlier than 4 cause problems */ 796 if (BCSR_WHOAMI_CPLD(bcsr_read(BCSR_WHOAMI)) <= 3) { 797 printk(KERN_ERR "WARNING!!!\n"); 798 printk(KERN_ERR "WARNING!!!\n"); 799 printk(KERN_ERR "PB1200 must be at CPLD rev 4. Please have\n"); 800 printk(KERN_ERR "the board updated to latest revisions.\n"); 801 printk(KERN_ERR "This software will not work reliably\n"); 802 printk(KERN_ERR "on anything older than CPLD rev 4.!\n"); 803 printk(KERN_ERR "WARNING!!!\n"); 804 printk(KERN_ERR "WARNING!!!\n"); 805 return 1; 806 } 807 808 db1200_nand_res[0].start = PB1200_NAND_PHYS_ADDR; 809 db1200_nand_res[0].end = PB1200_NAND_PHYS_ADDR + 0xff; 810 db1200_ide_res[0].start = PB1200_IDE_PHYS_ADDR; 811 db1200_ide_res[0].end = PB1200_IDE_PHYS_ADDR + DB1200_IDE_PHYS_LEN - 1; 812 db1200_eth_res[0].start = PB1200_ETH_PHYS_ADDR; 813 db1200_eth_res[0].end = PB1200_ETH_PHYS_ADDR + 0xff; 814 return 0; 815 } 816 817 int __init db1200_dev_setup(void) 818 { 819 unsigned long pfc; 820 unsigned short sw; 821 int swapped, bid; 822 struct clk *c; 823 824 bid = BCSR_WHOAMI_BOARD(bcsr_read(BCSR_WHOAMI)); 825 if ((bid == BCSR_WHOAMI_PB1200_DDR1) || 826 (bid == BCSR_WHOAMI_PB1200_DDR2)) { 827 if (pb1200_res_fixup()) 828 return -ENODEV; 829 } 830 831 /* GPIO7 is low-level triggered CPLD cascade */ 832 irq_set_irq_type(AU1200_GPIO7_INT, IRQ_TYPE_LEVEL_LOW); 833 bcsr_init_irq(DB1200_INT_BEGIN, DB1200_INT_END, AU1200_GPIO7_INT); 834 835 /* SMBus/SPI on PSC0, Audio on PSC1 */ 836 pfc = alchemy_rdsys(AU1000_SYS_PINFUNC); 837 pfc &= ~(SYS_PINFUNC_P0A | SYS_PINFUNC_P0B); 838 pfc &= ~(SYS_PINFUNC_P1A | SYS_PINFUNC_P1B | SYS_PINFUNC_FS3); 839 pfc |= SYS_PINFUNC_P1C; /* SPI is configured later */ 840 alchemy_wrsys(pfc, AU1000_SYS_PINFUNC); 841 842 /* get 50MHz for I2C driver on PSC0 */ 843 c = clk_get(NULL, "psc0_intclk"); 844 if (!IS_ERR(c)) { 845 pfc = clk_round_rate(c, 50000000); 846 if ((pfc < 1) || (abs(50000000 - pfc) > 2500000)) 847 pr_warn("DB1200: cant get I2C close to 50MHz\n"); 848 else 849 clk_set_rate(c, pfc); 850 clk_prepare_enable(c); 851 clk_put(c); 852 } 853 854 /* insert/eject pairs: one of both is always screaming. To avoid 855 * issues they must not be automatically enabled when initially 856 * requested. 857 */ 858 irq_set_status_flags(DB1200_SD0_INSERT_INT, IRQ_NOAUTOEN); 859 irq_set_status_flags(DB1200_SD0_EJECT_INT, IRQ_NOAUTOEN); 860 irq_set_status_flags(DB1200_PC0_INSERT_INT, IRQ_NOAUTOEN); 861 irq_set_status_flags(DB1200_PC0_EJECT_INT, IRQ_NOAUTOEN); 862 irq_set_status_flags(DB1200_PC1_INSERT_INT, IRQ_NOAUTOEN); 863 irq_set_status_flags(DB1200_PC1_EJECT_INT, IRQ_NOAUTOEN); 864 865 i2c_register_board_info(0, db1200_i2c_devs, 866 ARRAY_SIZE(db1200_i2c_devs)); 867 spi_register_board_info(db1200_spi_devs, 868 ARRAY_SIZE(db1200_i2c_devs)); 869 870 /* SWITCHES: S6.8 I2C/SPI selector (OFF=I2C ON=SPI) 871 * S6.7 AC97/I2S selector (OFF=AC97 ON=I2S) 872 * or S12 on the PB1200. 873 */ 874 875 /* NOTE: GPIO215 controls OTG VBUS supply. In SPI mode however 876 * this pin is claimed by PSC0 (unused though, but pinmux doesn't 877 * allow to free it without crippling the SPI interface). 878 * As a result, in SPI mode, OTG simply won't work (PSC0 uses 879 * it as an input pin which is pulled high on the boards). 880 */ 881 pfc = alchemy_rdsys(AU1000_SYS_PINFUNC) & ~SYS_PINFUNC_P0A; 882 883 /* switch off OTG VBUS supply */ 884 gpio_request(215, "otg-vbus"); 885 gpio_direction_output(215, 1); 886 887 printk(KERN_INFO "%s device configuration:\n", get_system_type()); 888 889 sw = bcsr_read(BCSR_SWITCHES); 890 if (sw & BCSR_SWITCHES_DIP_8) { 891 db1200_devs[0] = &db1200_i2c_dev; 892 bcsr_mod(BCSR_RESETS, BCSR_RESETS_PSC0MUX, 0); 893 894 pfc |= (2 << 17); /* GPIO2 block owns GPIO215 */ 895 896 printk(KERN_INFO " S6.8 OFF: PSC0 mode I2C\n"); 897 printk(KERN_INFO " OTG port VBUS supply available!\n"); 898 } else { 899 db1200_devs[0] = &db1200_spi_dev; 900 bcsr_mod(BCSR_RESETS, 0, BCSR_RESETS_PSC0MUX); 901 902 pfc |= (1 << 17); /* PSC0 owns GPIO215 */ 903 904 printk(KERN_INFO " S6.8 ON : PSC0 mode SPI\n"); 905 printk(KERN_INFO " OTG port VBUS supply disabled\n"); 906 } 907 alchemy_wrsys(pfc, AU1000_SYS_PINFUNC); 908 909 /* Audio: DIP7 selects I2S(0)/AC97(1), but need I2C for I2S! 910 * so: DIP7=1 || DIP8=0 => AC97, DIP7=0 && DIP8=1 => I2S 911 */ 912 sw &= BCSR_SWITCHES_DIP_8 | BCSR_SWITCHES_DIP_7; 913 if (sw == BCSR_SWITCHES_DIP_8) { 914 bcsr_mod(BCSR_RESETS, 0, BCSR_RESETS_PSC1MUX); 915 db1200_audio_dev.name = "au1xpsc_i2s"; 916 db1200_sound_dev.name = "db1200-i2s"; 917 printk(KERN_INFO " S6.7 ON : PSC1 mode I2S\n"); 918 } else { 919 bcsr_mod(BCSR_RESETS, BCSR_RESETS_PSC1MUX, 0); 920 db1200_audio_dev.name = "au1xpsc_ac97"; 921 db1200_sound_dev.name = "db1200-ac97"; 922 printk(KERN_INFO " S6.7 OFF: PSC1 mode AC97\n"); 923 } 924 925 /* Audio PSC clock is supplied externally. (FIXME: platdata!!) */ 926 __raw_writel(PSC_SEL_CLK_SERCLK, 927 (void __iomem *)KSEG1ADDR(AU1550_PSC1_PHYS_ADDR) + PSC_SEL_OFFSET); 928 wmb(); 929 930 db1x_register_pcmcia_socket( 931 AU1000_PCMCIA_ATTR_PHYS_ADDR, 932 AU1000_PCMCIA_ATTR_PHYS_ADDR + 0x000400000 - 1, 933 AU1000_PCMCIA_MEM_PHYS_ADDR, 934 AU1000_PCMCIA_MEM_PHYS_ADDR + 0x000400000 - 1, 935 AU1000_PCMCIA_IO_PHYS_ADDR, 936 AU1000_PCMCIA_IO_PHYS_ADDR + 0x000010000 - 1, 937 DB1200_PC0_INT, DB1200_PC0_INSERT_INT, 938 /*DB1200_PC0_STSCHG_INT*/0, DB1200_PC0_EJECT_INT, 0); 939 940 db1x_register_pcmcia_socket( 941 AU1000_PCMCIA_ATTR_PHYS_ADDR + 0x004000000, 942 AU1000_PCMCIA_ATTR_PHYS_ADDR + 0x004400000 - 1, 943 AU1000_PCMCIA_MEM_PHYS_ADDR + 0x004000000, 944 AU1000_PCMCIA_MEM_PHYS_ADDR + 0x004400000 - 1, 945 AU1000_PCMCIA_IO_PHYS_ADDR + 0x004000000, 946 AU1000_PCMCIA_IO_PHYS_ADDR + 0x004010000 - 1, 947 DB1200_PC1_INT, DB1200_PC1_INSERT_INT, 948 /*DB1200_PC1_STSCHG_INT*/0, DB1200_PC1_EJECT_INT, 1); 949 950 swapped = bcsr_read(BCSR_STATUS) & BCSR_STATUS_DB1200_SWAPBOOT; 951 db1x_register_norflash(64 << 20, 2, swapped); 952 953 platform_add_devices(db1200_devs, ARRAY_SIZE(db1200_devs)); 954 955 /* PB1200 is a DB1200 with a 2nd MMC and Camera connector */ 956 if ((bid == BCSR_WHOAMI_PB1200_DDR1) || 957 (bid == BCSR_WHOAMI_PB1200_DDR2)) 958 platform_add_devices(pb1200_devs, ARRAY_SIZE(pb1200_devs)); 959 960 return 0; 961 } 962