1 /* 2 * linux/arch/arm/mach-omap2/board-n8x0.c 3 * 4 * Copyright (C) 2005-2009 Nokia Corporation 5 * Author: Juha Yrjola <juha.yrjola@nokia.com> 6 * 7 * Modified from mach-omap2/board-generic.c 8 * 9 * This program is free software; you can redistribute it and/or modify 10 * it under the terms of the GNU General Public License version 2 as 11 * published by the Free Software Foundation. 12 */ 13 14 #include <linux/clk.h> 15 #include <linux/delay.h> 16 #include <linux/gpio.h> 17 #include <linux/init.h> 18 #include <linux/io.h> 19 #include <linux/stddef.h> 20 #include <linux/i2c.h> 21 #include <linux/spi/spi.h> 22 #include <linux/usb/musb.h> 23 #include <sound/tlv320aic3x.h> 24 25 #include <asm/mach/arch.h> 26 #include <asm/mach-types.h> 27 28 #include <plat/board.h> 29 #include <plat/common.h> 30 #include <plat/menelaus.h> 31 #include <mach/irqs.h> 32 #include <plat/mcspi.h> 33 #include <plat/onenand.h> 34 #include <plat/mmc.h> 35 #include <plat/serial.h> 36 37 #include "mux.h" 38 39 static int slot1_cover_open; 40 static int slot2_cover_open; 41 static struct device *mmc_device; 42 43 #define TUSB6010_ASYNC_CS 1 44 #define TUSB6010_SYNC_CS 4 45 #define TUSB6010_GPIO_INT 58 46 #define TUSB6010_GPIO_ENABLE 0 47 #define TUSB6010_DMACHAN 0x3f 48 49 #ifdef CONFIG_USB_MUSB_TUSB6010 50 /* 51 * Enable or disable power to TUSB6010. When enabling, turn on 3.3 V and 52 * 1.5 V voltage regulators of PM companion chip. Companion chip will then 53 * provide then PGOOD signal to TUSB6010 which will release it from reset. 54 */ 55 static int tusb_set_power(int state) 56 { 57 int i, retval = 0; 58 59 if (state) { 60 gpio_set_value(TUSB6010_GPIO_ENABLE, 1); 61 msleep(1); 62 63 /* Wait until TUSB6010 pulls INT pin down */ 64 i = 100; 65 while (i && gpio_get_value(TUSB6010_GPIO_INT)) { 66 msleep(1); 67 i--; 68 } 69 70 if (!i) { 71 printk(KERN_ERR "tusb: powerup failed\n"); 72 retval = -ENODEV; 73 } 74 } else { 75 gpio_set_value(TUSB6010_GPIO_ENABLE, 0); 76 msleep(10); 77 } 78 79 return retval; 80 } 81 82 static struct musb_hdrc_config musb_config = { 83 .multipoint = 1, 84 .dyn_fifo = 1, 85 .num_eps = 16, 86 .ram_bits = 12, 87 }; 88 89 static struct musb_hdrc_platform_data tusb_data = { 90 #if defined(CONFIG_USB_MUSB_OTG) 91 .mode = MUSB_OTG, 92 #elif defined(CONFIG_USB_MUSB_PERIPHERAL) 93 .mode = MUSB_PERIPHERAL, 94 #else /* defined(CONFIG_USB_MUSB_HOST) */ 95 .mode = MUSB_HOST, 96 #endif 97 .set_power = tusb_set_power, 98 .min_power = 25, /* x2 = 50 mA drawn from VBUS as peripheral */ 99 .power = 100, /* Max 100 mA VBUS for host mode */ 100 .config = &musb_config, 101 }; 102 103 static void __init n8x0_usb_init(void) 104 { 105 int ret = 0; 106 static char announce[] __initdata = KERN_INFO "TUSB 6010\n"; 107 108 /* PM companion chip power control pin */ 109 ret = gpio_request_one(TUSB6010_GPIO_ENABLE, GPIOF_OUT_INIT_LOW, 110 "TUSB6010 enable"); 111 if (ret != 0) { 112 printk(KERN_ERR "Could not get TUSB power GPIO%i\n", 113 TUSB6010_GPIO_ENABLE); 114 return; 115 } 116 tusb_set_power(0); 117 118 ret = tusb6010_setup_interface(&tusb_data, TUSB6010_REFCLK_19, 2, 119 TUSB6010_ASYNC_CS, TUSB6010_SYNC_CS, 120 TUSB6010_GPIO_INT, TUSB6010_DMACHAN); 121 if (ret != 0) 122 goto err; 123 124 printk(announce); 125 126 return; 127 128 err: 129 gpio_free(TUSB6010_GPIO_ENABLE); 130 } 131 #else 132 133 static void __init n8x0_usb_init(void) {} 134 135 #endif /*CONFIG_USB_MUSB_TUSB6010 */ 136 137 138 static struct omap2_mcspi_device_config p54spi_mcspi_config = { 139 .turbo_mode = 0, 140 .single_channel = 1, 141 }; 142 143 static struct spi_board_info n800_spi_board_info[] __initdata = { 144 { 145 .modalias = "p54spi", 146 .bus_num = 2, 147 .chip_select = 0, 148 .max_speed_hz = 48000000, 149 .controller_data = &p54spi_mcspi_config, 150 }, 151 }; 152 153 #if defined(CONFIG_MTD_ONENAND_OMAP2) || \ 154 defined(CONFIG_MTD_ONENAND_OMAP2_MODULE) 155 156 static struct mtd_partition onenand_partitions[] = { 157 { 158 .name = "bootloader", 159 .offset = 0, 160 .size = 0x20000, 161 .mask_flags = MTD_WRITEABLE, /* Force read-only */ 162 }, 163 { 164 .name = "config", 165 .offset = MTDPART_OFS_APPEND, 166 .size = 0x60000, 167 }, 168 { 169 .name = "kernel", 170 .offset = MTDPART_OFS_APPEND, 171 .size = 0x200000, 172 }, 173 { 174 .name = "initfs", 175 .offset = MTDPART_OFS_APPEND, 176 .size = 0x400000, 177 }, 178 { 179 .name = "rootfs", 180 .offset = MTDPART_OFS_APPEND, 181 .size = MTDPART_SIZ_FULL, 182 }, 183 }; 184 185 static struct omap_onenand_platform_data board_onenand_data[] = { 186 { 187 .cs = 0, 188 .gpio_irq = 26, 189 .parts = onenand_partitions, 190 .nr_parts = ARRAY_SIZE(onenand_partitions), 191 .flags = ONENAND_SYNC_READ, 192 } 193 }; 194 #endif 195 196 #if defined(CONFIG_MENELAUS) && \ 197 (defined(CONFIG_MMC_OMAP) || defined(CONFIG_MMC_OMAP_MODULE)) 198 199 /* 200 * On both N800 and N810, only the first of the two MMC controllers is in use. 201 * The two MMC slots are multiplexed via Menelaus companion chip over I2C. 202 * On N800, both slots are powered via Menelaus. On N810, only one of the 203 * slots is powered via Menelaus. The N810 EMMC is powered via GPIO. 204 * 205 * VMMC slot 1 on both N800 and N810 206 * VDCDC3_APE and VMCS2_APE slot 2 on N800 207 * GPIO23 and GPIO9 slot 2 EMMC on N810 208 * 209 */ 210 #define N8X0_SLOT_SWITCH_GPIO 96 211 #define N810_EMMC_VSD_GPIO 23 212 #define N810_EMMC_VIO_GPIO 9 213 214 static int n8x0_mmc_switch_slot(struct device *dev, int slot) 215 { 216 #ifdef CONFIG_MMC_DEBUG 217 dev_dbg(dev, "Choose slot %d\n", slot + 1); 218 #endif 219 gpio_set_value(N8X0_SLOT_SWITCH_GPIO, slot); 220 return 0; 221 } 222 223 static int n8x0_mmc_set_power_menelaus(struct device *dev, int slot, 224 int power_on, int vdd) 225 { 226 int mV; 227 228 #ifdef CONFIG_MMC_DEBUG 229 dev_dbg(dev, "Set slot %d power: %s (vdd %d)\n", slot + 1, 230 power_on ? "on" : "off", vdd); 231 #endif 232 if (slot == 0) { 233 if (!power_on) 234 return menelaus_set_vmmc(0); 235 switch (1 << vdd) { 236 case MMC_VDD_33_34: 237 case MMC_VDD_32_33: 238 case MMC_VDD_31_32: 239 mV = 3100; 240 break; 241 case MMC_VDD_30_31: 242 mV = 3000; 243 break; 244 case MMC_VDD_28_29: 245 mV = 2800; 246 break; 247 case MMC_VDD_165_195: 248 mV = 1850; 249 break; 250 default: 251 BUG(); 252 } 253 return menelaus_set_vmmc(mV); 254 } else { 255 if (!power_on) 256 return menelaus_set_vdcdc(3, 0); 257 switch (1 << vdd) { 258 case MMC_VDD_33_34: 259 case MMC_VDD_32_33: 260 mV = 3300; 261 break; 262 case MMC_VDD_30_31: 263 case MMC_VDD_29_30: 264 mV = 3000; 265 break; 266 case MMC_VDD_28_29: 267 case MMC_VDD_27_28: 268 mV = 2800; 269 break; 270 case MMC_VDD_24_25: 271 case MMC_VDD_23_24: 272 mV = 2400; 273 break; 274 case MMC_VDD_22_23: 275 case MMC_VDD_21_22: 276 mV = 2200; 277 break; 278 case MMC_VDD_20_21: 279 mV = 2000; 280 break; 281 case MMC_VDD_165_195: 282 mV = 1800; 283 break; 284 default: 285 BUG(); 286 } 287 return menelaus_set_vdcdc(3, mV); 288 } 289 return 0; 290 } 291 292 static void n810_set_power_emmc(struct device *dev, 293 int power_on) 294 { 295 dev_dbg(dev, "Set EMMC power %s\n", power_on ? "on" : "off"); 296 297 if (power_on) { 298 gpio_set_value(N810_EMMC_VSD_GPIO, 1); 299 msleep(1); 300 gpio_set_value(N810_EMMC_VIO_GPIO, 1); 301 msleep(1); 302 } else { 303 gpio_set_value(N810_EMMC_VIO_GPIO, 0); 304 msleep(50); 305 gpio_set_value(N810_EMMC_VSD_GPIO, 0); 306 msleep(50); 307 } 308 } 309 310 static int n8x0_mmc_set_power(struct device *dev, int slot, int power_on, 311 int vdd) 312 { 313 if (machine_is_nokia_n800() || slot == 0) 314 return n8x0_mmc_set_power_menelaus(dev, slot, power_on, vdd); 315 316 n810_set_power_emmc(dev, power_on); 317 318 return 0; 319 } 320 321 static int n8x0_mmc_set_bus_mode(struct device *dev, int slot, int bus_mode) 322 { 323 int r; 324 325 dev_dbg(dev, "Set slot %d bus mode %s\n", slot + 1, 326 bus_mode == MMC_BUSMODE_OPENDRAIN ? "open-drain" : "push-pull"); 327 BUG_ON(slot != 0 && slot != 1); 328 slot++; 329 switch (bus_mode) { 330 case MMC_BUSMODE_OPENDRAIN: 331 r = menelaus_set_mmc_opendrain(slot, 1); 332 break; 333 case MMC_BUSMODE_PUSHPULL: 334 r = menelaus_set_mmc_opendrain(slot, 0); 335 break; 336 default: 337 BUG(); 338 } 339 if (r != 0 && printk_ratelimit()) 340 dev_err(dev, "MMC: unable to set bus mode for slot %d\n", 341 slot); 342 return r; 343 } 344 345 static int n8x0_mmc_get_cover_state(struct device *dev, int slot) 346 { 347 slot++; 348 BUG_ON(slot != 1 && slot != 2); 349 if (slot == 1) 350 return slot1_cover_open; 351 else 352 return slot2_cover_open; 353 } 354 355 static void n8x0_mmc_callback(void *data, u8 card_mask) 356 { 357 int bit, *openp, index; 358 359 if (machine_is_nokia_n800()) { 360 bit = 1 << 1; 361 openp = &slot2_cover_open; 362 index = 1; 363 } else { 364 bit = 1; 365 openp = &slot1_cover_open; 366 index = 0; 367 } 368 369 if (card_mask & bit) 370 *openp = 1; 371 else 372 *openp = 0; 373 374 omap_mmc_notify_cover_event(mmc_device, index, *openp); 375 } 376 377 static int n8x0_mmc_late_init(struct device *dev) 378 { 379 int r, bit, *openp; 380 int vs2sel; 381 382 mmc_device = dev; 383 384 r = menelaus_set_slot_sel(1); 385 if (r < 0) 386 return r; 387 388 if (machine_is_nokia_n800()) 389 vs2sel = 0; 390 else 391 vs2sel = 2; 392 393 r = menelaus_set_mmc_slot(2, 0, vs2sel, 1); 394 if (r < 0) 395 return r; 396 397 n8x0_mmc_set_power(dev, 0, MMC_POWER_ON, 16); /* MMC_VDD_28_29 */ 398 n8x0_mmc_set_power(dev, 1, MMC_POWER_ON, 16); 399 400 r = menelaus_set_mmc_slot(1, 1, 0, 1); 401 if (r < 0) 402 return r; 403 r = menelaus_set_mmc_slot(2, 1, vs2sel, 1); 404 if (r < 0) 405 return r; 406 407 r = menelaus_get_slot_pin_states(); 408 if (r < 0) 409 return r; 410 411 if (machine_is_nokia_n800()) { 412 bit = 1 << 1; 413 openp = &slot2_cover_open; 414 } else { 415 bit = 1; 416 openp = &slot1_cover_open; 417 slot2_cover_open = 0; 418 } 419 420 /* All slot pin bits seem to be inversed until first switch change */ 421 if (r == 0xf || r == (0xf & ~bit)) 422 r = ~r; 423 424 if (r & bit) 425 *openp = 1; 426 else 427 *openp = 0; 428 429 r = menelaus_register_mmc_callback(n8x0_mmc_callback, NULL); 430 431 return r; 432 } 433 434 static void n8x0_mmc_shutdown(struct device *dev) 435 { 436 int vs2sel; 437 438 if (machine_is_nokia_n800()) 439 vs2sel = 0; 440 else 441 vs2sel = 2; 442 443 menelaus_set_mmc_slot(1, 0, 0, 0); 444 menelaus_set_mmc_slot(2, 0, vs2sel, 0); 445 } 446 447 static void n8x0_mmc_cleanup(struct device *dev) 448 { 449 menelaus_unregister_mmc_callback(); 450 451 gpio_free(N8X0_SLOT_SWITCH_GPIO); 452 453 if (machine_is_nokia_n810()) { 454 gpio_free(N810_EMMC_VSD_GPIO); 455 gpio_free(N810_EMMC_VIO_GPIO); 456 } 457 } 458 459 /* 460 * MMC controller1 has two slots that are multiplexed via I2C. 461 * MMC controller2 is not in use. 462 */ 463 static struct omap_mmc_platform_data mmc1_data = { 464 .nr_slots = 2, 465 .switch_slot = n8x0_mmc_switch_slot, 466 .init = n8x0_mmc_late_init, 467 .cleanup = n8x0_mmc_cleanup, 468 .shutdown = n8x0_mmc_shutdown, 469 .max_freq = 24000000, 470 .dma_mask = 0xffffffff, 471 .slots[0] = { 472 .wires = 4, 473 .set_power = n8x0_mmc_set_power, 474 .set_bus_mode = n8x0_mmc_set_bus_mode, 475 .get_cover_state = n8x0_mmc_get_cover_state, 476 .ocr_mask = MMC_VDD_165_195 | MMC_VDD_30_31 | 477 MMC_VDD_32_33 | MMC_VDD_33_34, 478 .name = "internal", 479 }, 480 .slots[1] = { 481 .set_power = n8x0_mmc_set_power, 482 .set_bus_mode = n8x0_mmc_set_bus_mode, 483 .get_cover_state = n8x0_mmc_get_cover_state, 484 .ocr_mask = MMC_VDD_165_195 | MMC_VDD_20_21 | 485 MMC_VDD_21_22 | MMC_VDD_22_23 | 486 MMC_VDD_23_24 | MMC_VDD_24_25 | 487 MMC_VDD_27_28 | MMC_VDD_28_29 | 488 MMC_VDD_29_30 | MMC_VDD_30_31 | 489 MMC_VDD_32_33 | MMC_VDD_33_34, 490 .name = "external", 491 }, 492 }; 493 494 static struct omap_mmc_platform_data *mmc_data[OMAP24XX_NR_MMC]; 495 496 static struct gpio n810_emmc_gpios[] __initdata = { 497 { N810_EMMC_VSD_GPIO, GPIOF_OUT_INIT_LOW, "MMC slot 2 Vddf" }, 498 { N810_EMMC_VIO_GPIO, GPIOF_OUT_INIT_LOW, "MMC slot 2 Vdd" }, 499 }; 500 501 static void __init n8x0_mmc_init(void) 502 { 503 int err; 504 505 if (machine_is_nokia_n810()) { 506 mmc1_data.slots[0].name = "external"; 507 508 /* 509 * Some Samsung Movinand chips do not like open-ended 510 * multi-block reads and fall to braind-dead state 511 * while doing so. Reducing the number of blocks in 512 * the transfer or delays in clock disable do not help 513 */ 514 mmc1_data.slots[1].name = "internal"; 515 mmc1_data.slots[1].ban_openended = 1; 516 } 517 518 err = gpio_request_one(N8X0_SLOT_SWITCH_GPIO, GPIOF_OUT_INIT_LOW, 519 "MMC slot switch"); 520 if (err) 521 return; 522 523 if (machine_is_nokia_n810()) { 524 err = gpio_request_array(n810_emmc_gpios, 525 ARRAY_SIZE(n810_emmc_gpios)); 526 if (err) { 527 gpio_free(N8X0_SLOT_SWITCH_GPIO); 528 return; 529 } 530 } 531 532 mmc_data[0] = &mmc1_data; 533 omap242x_init_mmc(mmc_data); 534 } 535 #else 536 537 void __init n8x0_mmc_init(void) 538 { 539 } 540 #endif /* CONFIG_MMC_OMAP */ 541 542 #ifdef CONFIG_MENELAUS 543 544 static int n8x0_auto_sleep_regulators(void) 545 { 546 u32 val; 547 int ret; 548 549 val = EN_VPLL_SLEEP | EN_VMMC_SLEEP \ 550 | EN_VAUX_SLEEP | EN_VIO_SLEEP \ 551 | EN_VMEM_SLEEP | EN_DC3_SLEEP \ 552 | EN_VC_SLEEP | EN_DC2_SLEEP; 553 554 ret = menelaus_set_regulator_sleep(1, val); 555 if (ret < 0) { 556 printk(KERN_ERR "Could not set regulators to sleep on " 557 "menelaus: %u\n", ret); 558 return ret; 559 } 560 return 0; 561 } 562 563 static int n8x0_auto_voltage_scale(void) 564 { 565 int ret; 566 567 ret = menelaus_set_vcore_hw(1400, 1050); 568 if (ret < 0) { 569 printk(KERN_ERR "Could not set VCORE voltage on " 570 "menelaus: %u\n", ret); 571 return ret; 572 } 573 return 0; 574 } 575 576 static int n8x0_menelaus_late_init(struct device *dev) 577 { 578 int ret; 579 580 ret = n8x0_auto_voltage_scale(); 581 if (ret < 0) 582 return ret; 583 ret = n8x0_auto_sleep_regulators(); 584 if (ret < 0) 585 return ret; 586 return 0; 587 } 588 589 #else 590 static int n8x0_menelaus_late_init(struct device *dev) 591 { 592 return 0; 593 } 594 #endif 595 596 static struct menelaus_platform_data n8x0_menelaus_platform_data __initdata = { 597 .late_init = n8x0_menelaus_late_init, 598 }; 599 600 static struct i2c_board_info __initdata n8x0_i2c_board_info_1[] __initdata = { 601 { 602 I2C_BOARD_INFO("menelaus", 0x72), 603 .irq = INT_24XX_SYS_NIRQ, 604 .platform_data = &n8x0_menelaus_platform_data, 605 }, 606 }; 607 608 static struct aic3x_pdata n810_aic33_data __initdata = { 609 .gpio_reset = 118, 610 }; 611 612 static struct i2c_board_info n810_i2c_board_info_2[] __initdata = { 613 { 614 I2C_BOARD_INFO("tlv320aic3x", 0x18), 615 .platform_data = &n810_aic33_data, 616 }, 617 }; 618 619 #ifdef CONFIG_OMAP_MUX 620 static struct omap_board_mux board_mux[] __initdata = { 621 /* I2S codec port pins for McBSP block */ 622 OMAP2420_MUX(EAC_AC_SCLK, OMAP_MUX_MODE1 | OMAP_PIN_INPUT), 623 OMAP2420_MUX(EAC_AC_FS, OMAP_MUX_MODE1 | OMAP_PIN_INPUT), 624 OMAP2420_MUX(EAC_AC_DIN, OMAP_MUX_MODE1 | OMAP_PIN_INPUT), 625 OMAP2420_MUX(EAC_AC_DOUT, OMAP_MUX_MODE1 | OMAP_PIN_OUTPUT), 626 { .reg_offset = OMAP_MUX_TERMINATOR }, 627 }; 628 629 static struct omap_device_pad serial2_pads[] __initdata = { 630 { 631 .name = "uart3_rx_irrx.uart3_rx_irrx", 632 .flags = OMAP_DEVICE_PAD_REMUX | OMAP_DEVICE_PAD_WAKEUP, 633 .enable = OMAP_MUX_MODE0, 634 .idle = OMAP_MUX_MODE3 /* Mux as GPIO for idle */ 635 }, 636 }; 637 638 static inline void board_serial_init(void) 639 { 640 struct omap_board_data bdata; 641 642 bdata.flags = 0; 643 bdata.pads = NULL; 644 bdata.pads_cnt = 0; 645 646 bdata.id = 0; 647 omap_serial_init_port(&bdata); 648 649 bdata.id = 1; 650 omap_serial_init_port(&bdata); 651 652 bdata.id = 2; 653 bdata.pads = serial2_pads; 654 bdata.pads_cnt = ARRAY_SIZE(serial2_pads); 655 omap_serial_init_port(&bdata); 656 } 657 658 #else 659 660 static inline void board_serial_init(void) 661 { 662 omap_serial_init(); 663 } 664 665 #endif 666 667 static void __init n8x0_init_machine(void) 668 { 669 omap2420_mux_init(board_mux, OMAP_PACKAGE_ZAC); 670 /* FIXME: add n810 spi devices */ 671 spi_register_board_info(n800_spi_board_info, 672 ARRAY_SIZE(n800_spi_board_info)); 673 omap_register_i2c_bus(1, 400, n8x0_i2c_board_info_1, 674 ARRAY_SIZE(n8x0_i2c_board_info_1)); 675 omap_register_i2c_bus(2, 400, NULL, 0); 676 if (machine_is_nokia_n810()) 677 i2c_register_board_info(2, n810_i2c_board_info_2, 678 ARRAY_SIZE(n810_i2c_board_info_2)); 679 board_serial_init(); 680 omap_sdrc_init(NULL, NULL); 681 gpmc_onenand_init(board_onenand_data); 682 n8x0_mmc_init(); 683 n8x0_usb_init(); 684 } 685 686 MACHINE_START(NOKIA_N800, "Nokia N800") 687 .atag_offset = 0x100, 688 .reserve = omap_reserve, 689 .map_io = omap242x_map_io, 690 .init_early = omap2420_init_early, 691 .init_irq = omap2_init_irq, 692 .init_machine = n8x0_init_machine, 693 .timer = &omap2_timer, 694 MACHINE_END 695 696 MACHINE_START(NOKIA_N810, "Nokia N810") 697 .atag_offset = 0x100, 698 .reserve = omap_reserve, 699 .map_io = omap242x_map_io, 700 .init_early = omap2420_init_early, 701 .init_irq = omap2_init_irq, 702 .init_machine = n8x0_init_machine, 703 .timer = &omap2_timer, 704 MACHINE_END 705 706 MACHINE_START(NOKIA_N810_WIMAX, "Nokia N810 WiMAX") 707 .atag_offset = 0x100, 708 .reserve = omap_reserve, 709 .map_io = omap242x_map_io, 710 .init_early = omap2420_init_early, 711 .init_irq = omap2_init_irq, 712 .init_machine = n8x0_init_machine, 713 .timer = &omap2_timer, 714 MACHINE_END 715