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 <linux/platform_data/spi-omap2-mcspi.h> 24 #include <linux/platform_data/mtd-onenand-omap2.h> 25 #include <sound/tlv320aic3x.h> 26 27 #include <asm/mach/arch.h> 28 #include <asm/mach-types.h> 29 30 #include "common.h" 31 #include <plat/menelaus.h> 32 #include <plat/mmc.h> 33 34 #include "mux.h" 35 36 #define TUSB6010_ASYNC_CS 1 37 #define TUSB6010_SYNC_CS 4 38 #define TUSB6010_GPIO_INT 58 39 #define TUSB6010_GPIO_ENABLE 0 40 #define TUSB6010_DMACHAN 0x3f 41 42 #if defined(CONFIG_USB_MUSB_TUSB6010) || defined(CONFIG_USB_MUSB_TUSB6010_MODULE) 43 /* 44 * Enable or disable power to TUSB6010. When enabling, turn on 3.3 V and 45 * 1.5 V voltage regulators of PM companion chip. Companion chip will then 46 * provide then PGOOD signal to TUSB6010 which will release it from reset. 47 */ 48 static int tusb_set_power(int state) 49 { 50 int i, retval = 0; 51 52 if (state) { 53 gpio_set_value(TUSB6010_GPIO_ENABLE, 1); 54 msleep(1); 55 56 /* Wait until TUSB6010 pulls INT pin down */ 57 i = 100; 58 while (i && gpio_get_value(TUSB6010_GPIO_INT)) { 59 msleep(1); 60 i--; 61 } 62 63 if (!i) { 64 printk(KERN_ERR "tusb: powerup failed\n"); 65 retval = -ENODEV; 66 } 67 } else { 68 gpio_set_value(TUSB6010_GPIO_ENABLE, 0); 69 msleep(10); 70 } 71 72 return retval; 73 } 74 75 static struct musb_hdrc_config musb_config = { 76 .multipoint = 1, 77 .dyn_fifo = 1, 78 .num_eps = 16, 79 .ram_bits = 12, 80 }; 81 82 static struct musb_hdrc_platform_data tusb_data = { 83 #ifdef CONFIG_USB_GADGET_MUSB_HDRC 84 .mode = MUSB_OTG, 85 #else 86 .mode = MUSB_HOST, 87 #endif 88 .set_power = tusb_set_power, 89 .min_power = 25, /* x2 = 50 mA drawn from VBUS as peripheral */ 90 .power = 100, /* Max 100 mA VBUS for host mode */ 91 .config = &musb_config, 92 }; 93 94 static void __init n8x0_usb_init(void) 95 { 96 int ret = 0; 97 static char announce[] __initdata = KERN_INFO "TUSB 6010\n"; 98 99 /* PM companion chip power control pin */ 100 ret = gpio_request_one(TUSB6010_GPIO_ENABLE, GPIOF_OUT_INIT_LOW, 101 "TUSB6010 enable"); 102 if (ret != 0) { 103 printk(KERN_ERR "Could not get TUSB power GPIO%i\n", 104 TUSB6010_GPIO_ENABLE); 105 return; 106 } 107 tusb_set_power(0); 108 109 ret = tusb6010_setup_interface(&tusb_data, TUSB6010_REFCLK_19, 2, 110 TUSB6010_ASYNC_CS, TUSB6010_SYNC_CS, 111 TUSB6010_GPIO_INT, TUSB6010_DMACHAN); 112 if (ret != 0) 113 goto err; 114 115 printk(announce); 116 117 return; 118 119 err: 120 gpio_free(TUSB6010_GPIO_ENABLE); 121 } 122 #else 123 124 static void __init n8x0_usb_init(void) {} 125 126 #endif /*CONFIG_USB_MUSB_TUSB6010 */ 127 128 129 static struct omap2_mcspi_device_config p54spi_mcspi_config = { 130 .turbo_mode = 0, 131 }; 132 133 static struct spi_board_info n800_spi_board_info[] __initdata = { 134 { 135 .modalias = "p54spi", 136 .bus_num = 2, 137 .chip_select = 0, 138 .max_speed_hz = 48000000, 139 .controller_data = &p54spi_mcspi_config, 140 }, 141 }; 142 143 #if defined(CONFIG_MTD_ONENAND_OMAP2) || \ 144 defined(CONFIG_MTD_ONENAND_OMAP2_MODULE) 145 146 static struct mtd_partition onenand_partitions[] = { 147 { 148 .name = "bootloader", 149 .offset = 0, 150 .size = 0x20000, 151 .mask_flags = MTD_WRITEABLE, /* Force read-only */ 152 }, 153 { 154 .name = "config", 155 .offset = MTDPART_OFS_APPEND, 156 .size = 0x60000, 157 }, 158 { 159 .name = "kernel", 160 .offset = MTDPART_OFS_APPEND, 161 .size = 0x200000, 162 }, 163 { 164 .name = "initfs", 165 .offset = MTDPART_OFS_APPEND, 166 .size = 0x400000, 167 }, 168 { 169 .name = "rootfs", 170 .offset = MTDPART_OFS_APPEND, 171 .size = MTDPART_SIZ_FULL, 172 }, 173 }; 174 175 static struct omap_onenand_platform_data board_onenand_data[] = { 176 { 177 .cs = 0, 178 .gpio_irq = 26, 179 .parts = onenand_partitions, 180 .nr_parts = ARRAY_SIZE(onenand_partitions), 181 .flags = ONENAND_SYNC_READ, 182 } 183 }; 184 #endif 185 186 #if defined(CONFIG_MENELAUS) && \ 187 (defined(CONFIG_MMC_OMAP) || defined(CONFIG_MMC_OMAP_MODULE)) 188 189 /* 190 * On both N800 and N810, only the first of the two MMC controllers is in use. 191 * The two MMC slots are multiplexed via Menelaus companion chip over I2C. 192 * On N800, both slots are powered via Menelaus. On N810, only one of the 193 * slots is powered via Menelaus. The N810 EMMC is powered via GPIO. 194 * 195 * VMMC slot 1 on both N800 and N810 196 * VDCDC3_APE and VMCS2_APE slot 2 on N800 197 * GPIO23 and GPIO9 slot 2 EMMC on N810 198 * 199 */ 200 #define N8X0_SLOT_SWITCH_GPIO 96 201 #define N810_EMMC_VSD_GPIO 23 202 #define N810_EMMC_VIO_GPIO 9 203 204 static int slot1_cover_open; 205 static int slot2_cover_open; 206 static struct device *mmc_device; 207 208 static int n8x0_mmc_switch_slot(struct device *dev, int slot) 209 { 210 #ifdef CONFIG_MMC_DEBUG 211 dev_dbg(dev, "Choose slot %d\n", slot + 1); 212 #endif 213 gpio_set_value(N8X0_SLOT_SWITCH_GPIO, slot); 214 return 0; 215 } 216 217 static int n8x0_mmc_set_power_menelaus(struct device *dev, int slot, 218 int power_on, int vdd) 219 { 220 int mV; 221 222 #ifdef CONFIG_MMC_DEBUG 223 dev_dbg(dev, "Set slot %d power: %s (vdd %d)\n", slot + 1, 224 power_on ? "on" : "off", vdd); 225 #endif 226 if (slot == 0) { 227 if (!power_on) 228 return menelaus_set_vmmc(0); 229 switch (1 << vdd) { 230 case MMC_VDD_33_34: 231 case MMC_VDD_32_33: 232 case MMC_VDD_31_32: 233 mV = 3100; 234 break; 235 case MMC_VDD_30_31: 236 mV = 3000; 237 break; 238 case MMC_VDD_28_29: 239 mV = 2800; 240 break; 241 case MMC_VDD_165_195: 242 mV = 1850; 243 break; 244 default: 245 BUG(); 246 } 247 return menelaus_set_vmmc(mV); 248 } else { 249 if (!power_on) 250 return menelaus_set_vdcdc(3, 0); 251 switch (1 << vdd) { 252 case MMC_VDD_33_34: 253 case MMC_VDD_32_33: 254 mV = 3300; 255 break; 256 case MMC_VDD_30_31: 257 case MMC_VDD_29_30: 258 mV = 3000; 259 break; 260 case MMC_VDD_28_29: 261 case MMC_VDD_27_28: 262 mV = 2800; 263 break; 264 case MMC_VDD_24_25: 265 case MMC_VDD_23_24: 266 mV = 2400; 267 break; 268 case MMC_VDD_22_23: 269 case MMC_VDD_21_22: 270 mV = 2200; 271 break; 272 case MMC_VDD_20_21: 273 mV = 2000; 274 break; 275 case MMC_VDD_165_195: 276 mV = 1800; 277 break; 278 default: 279 BUG(); 280 } 281 return menelaus_set_vdcdc(3, mV); 282 } 283 return 0; 284 } 285 286 static void n810_set_power_emmc(struct device *dev, 287 int power_on) 288 { 289 dev_dbg(dev, "Set EMMC power %s\n", power_on ? "on" : "off"); 290 291 if (power_on) { 292 gpio_set_value(N810_EMMC_VSD_GPIO, 1); 293 msleep(1); 294 gpio_set_value(N810_EMMC_VIO_GPIO, 1); 295 msleep(1); 296 } else { 297 gpio_set_value(N810_EMMC_VIO_GPIO, 0); 298 msleep(50); 299 gpio_set_value(N810_EMMC_VSD_GPIO, 0); 300 msleep(50); 301 } 302 } 303 304 static int n8x0_mmc_set_power(struct device *dev, int slot, int power_on, 305 int vdd) 306 { 307 if (machine_is_nokia_n800() || slot == 0) 308 return n8x0_mmc_set_power_menelaus(dev, slot, power_on, vdd); 309 310 n810_set_power_emmc(dev, power_on); 311 312 return 0; 313 } 314 315 static int n8x0_mmc_set_bus_mode(struct device *dev, int slot, int bus_mode) 316 { 317 int r; 318 319 dev_dbg(dev, "Set slot %d bus mode %s\n", slot + 1, 320 bus_mode == MMC_BUSMODE_OPENDRAIN ? "open-drain" : "push-pull"); 321 BUG_ON(slot != 0 && slot != 1); 322 slot++; 323 switch (bus_mode) { 324 case MMC_BUSMODE_OPENDRAIN: 325 r = menelaus_set_mmc_opendrain(slot, 1); 326 break; 327 case MMC_BUSMODE_PUSHPULL: 328 r = menelaus_set_mmc_opendrain(slot, 0); 329 break; 330 default: 331 BUG(); 332 } 333 if (r != 0 && printk_ratelimit()) 334 dev_err(dev, "MMC: unable to set bus mode for slot %d\n", 335 slot); 336 return r; 337 } 338 339 static int n8x0_mmc_get_cover_state(struct device *dev, int slot) 340 { 341 slot++; 342 BUG_ON(slot != 1 && slot != 2); 343 if (slot == 1) 344 return slot1_cover_open; 345 else 346 return slot2_cover_open; 347 } 348 349 static void n8x0_mmc_callback(void *data, u8 card_mask) 350 { 351 int bit, *openp, index; 352 353 if (machine_is_nokia_n800()) { 354 bit = 1 << 1; 355 openp = &slot2_cover_open; 356 index = 1; 357 } else { 358 bit = 1; 359 openp = &slot1_cover_open; 360 index = 0; 361 } 362 363 if (card_mask & bit) 364 *openp = 1; 365 else 366 *openp = 0; 367 368 #ifdef CONFIG_MMC_OMAP 369 omap_mmc_notify_cover_event(mmc_device, index, *openp); 370 #else 371 pr_warn("MMC: notify cover event not available\n"); 372 #endif 373 } 374 375 static int n8x0_mmc_late_init(struct device *dev) 376 { 377 int r, bit, *openp; 378 int vs2sel; 379 380 mmc_device = dev; 381 382 r = menelaus_set_slot_sel(1); 383 if (r < 0) 384 return r; 385 386 if (machine_is_nokia_n800()) 387 vs2sel = 0; 388 else 389 vs2sel = 2; 390 391 r = menelaus_set_mmc_slot(2, 0, vs2sel, 1); 392 if (r < 0) 393 return r; 394 395 n8x0_mmc_set_power(dev, 0, MMC_POWER_ON, 16); /* MMC_VDD_28_29 */ 396 n8x0_mmc_set_power(dev, 1, MMC_POWER_ON, 16); 397 398 r = menelaus_set_mmc_slot(1, 1, 0, 1); 399 if (r < 0) 400 return r; 401 r = menelaus_set_mmc_slot(2, 1, vs2sel, 1); 402 if (r < 0) 403 return r; 404 405 r = menelaus_get_slot_pin_states(); 406 if (r < 0) 407 return r; 408 409 if (machine_is_nokia_n800()) { 410 bit = 1 << 1; 411 openp = &slot2_cover_open; 412 } else { 413 bit = 1; 414 openp = &slot1_cover_open; 415 slot2_cover_open = 0; 416 } 417 418 /* All slot pin bits seem to be inversed until first switch change */ 419 if (r == 0xf || r == (0xf & ~bit)) 420 r = ~r; 421 422 if (r & bit) 423 *openp = 1; 424 else 425 *openp = 0; 426 427 r = menelaus_register_mmc_callback(n8x0_mmc_callback, NULL); 428 429 return r; 430 } 431 432 static void n8x0_mmc_shutdown(struct device *dev) 433 { 434 int vs2sel; 435 436 if (machine_is_nokia_n800()) 437 vs2sel = 0; 438 else 439 vs2sel = 2; 440 441 menelaus_set_mmc_slot(1, 0, 0, 0); 442 menelaus_set_mmc_slot(2, 0, vs2sel, 0); 443 } 444 445 static void n8x0_mmc_cleanup(struct device *dev) 446 { 447 menelaus_unregister_mmc_callback(); 448 449 gpio_free(N8X0_SLOT_SWITCH_GPIO); 450 451 if (machine_is_nokia_n810()) { 452 gpio_free(N810_EMMC_VSD_GPIO); 453 gpio_free(N810_EMMC_VIO_GPIO); 454 } 455 } 456 457 /* 458 * MMC controller1 has two slots that are multiplexed via I2C. 459 * MMC controller2 is not in use. 460 */ 461 static struct omap_mmc_platform_data mmc1_data = { 462 .nr_slots = 2, 463 .switch_slot = n8x0_mmc_switch_slot, 464 .init = n8x0_mmc_late_init, 465 .cleanup = n8x0_mmc_cleanup, 466 .shutdown = n8x0_mmc_shutdown, 467 .max_freq = 24000000, 468 .slots[0] = { 469 .wires = 4, 470 .set_power = n8x0_mmc_set_power, 471 .set_bus_mode = n8x0_mmc_set_bus_mode, 472 .get_cover_state = n8x0_mmc_get_cover_state, 473 .ocr_mask = MMC_VDD_165_195 | MMC_VDD_30_31 | 474 MMC_VDD_32_33 | MMC_VDD_33_34, 475 .name = "internal", 476 }, 477 .slots[1] = { 478 .set_power = n8x0_mmc_set_power, 479 .set_bus_mode = n8x0_mmc_set_bus_mode, 480 .get_cover_state = n8x0_mmc_get_cover_state, 481 .ocr_mask = MMC_VDD_165_195 | MMC_VDD_20_21 | 482 MMC_VDD_21_22 | MMC_VDD_22_23 | 483 MMC_VDD_23_24 | MMC_VDD_24_25 | 484 MMC_VDD_27_28 | MMC_VDD_28_29 | 485 MMC_VDD_29_30 | MMC_VDD_30_31 | 486 MMC_VDD_32_33 | MMC_VDD_33_34, 487 .name = "external", 488 }, 489 }; 490 491 static struct omap_mmc_platform_data *mmc_data[OMAP24XX_NR_MMC]; 492 493 static struct gpio n810_emmc_gpios[] __initdata = { 494 { N810_EMMC_VSD_GPIO, GPIOF_OUT_INIT_LOW, "MMC slot 2 Vddf" }, 495 { N810_EMMC_VIO_GPIO, GPIOF_OUT_INIT_LOW, "MMC slot 2 Vdd" }, 496 }; 497 498 static void __init n8x0_mmc_init(void) 499 { 500 int err; 501 502 if (machine_is_nokia_n810()) { 503 mmc1_data.slots[0].name = "external"; 504 505 /* 506 * Some Samsung Movinand chips do not like open-ended 507 * multi-block reads and fall to braind-dead state 508 * while doing so. Reducing the number of blocks in 509 * the transfer or delays in clock disable do not help 510 */ 511 mmc1_data.slots[1].name = "internal"; 512 mmc1_data.slots[1].ban_openended = 1; 513 } 514 515 err = gpio_request_one(N8X0_SLOT_SWITCH_GPIO, GPIOF_OUT_INIT_LOW, 516 "MMC slot switch"); 517 if (err) 518 return; 519 520 if (machine_is_nokia_n810()) { 521 err = gpio_request_array(n810_emmc_gpios, 522 ARRAY_SIZE(n810_emmc_gpios)); 523 if (err) { 524 gpio_free(N8X0_SLOT_SWITCH_GPIO); 525 return; 526 } 527 } 528 529 mmc_data[0] = &mmc1_data; 530 omap242x_init_mmc(mmc_data); 531 } 532 #else 533 534 void __init n8x0_mmc_init(void) 535 { 536 } 537 #endif /* CONFIG_MMC_OMAP */ 538 539 #ifdef CONFIG_MENELAUS 540 541 static int n8x0_auto_sleep_regulators(void) 542 { 543 u32 val; 544 int ret; 545 546 val = EN_VPLL_SLEEP | EN_VMMC_SLEEP \ 547 | EN_VAUX_SLEEP | EN_VIO_SLEEP \ 548 | EN_VMEM_SLEEP | EN_DC3_SLEEP \ 549 | EN_VC_SLEEP | EN_DC2_SLEEP; 550 551 ret = menelaus_set_regulator_sleep(1, val); 552 if (ret < 0) { 553 pr_err("Could not set regulators to sleep on menelaus: %u\n", 554 ret); 555 return ret; 556 } 557 return 0; 558 } 559 560 static int n8x0_auto_voltage_scale(void) 561 { 562 int ret; 563 564 ret = menelaus_set_vcore_hw(1400, 1050); 565 if (ret < 0) { 566 pr_err("Could not set VCORE voltage on menelaus: %u\n", ret); 567 return ret; 568 } 569 return 0; 570 } 571 572 static int n8x0_menelaus_late_init(struct device *dev) 573 { 574 int ret; 575 576 ret = n8x0_auto_voltage_scale(); 577 if (ret < 0) 578 return ret; 579 ret = n8x0_auto_sleep_regulators(); 580 if (ret < 0) 581 return ret; 582 return 0; 583 } 584 585 #else 586 static int n8x0_menelaus_late_init(struct device *dev) 587 { 588 return 0; 589 } 590 #endif 591 592 static struct menelaus_platform_data n8x0_menelaus_platform_data __initdata = { 593 .late_init = n8x0_menelaus_late_init, 594 }; 595 596 static struct i2c_board_info __initdata n8x0_i2c_board_info_1[] __initdata = { 597 { 598 I2C_BOARD_INFO("menelaus", 0x72), 599 .irq = 7 + OMAP_INTC_START, 600 .platform_data = &n8x0_menelaus_platform_data, 601 }, 602 }; 603 604 static struct aic3x_pdata n810_aic33_data __initdata = { 605 .gpio_reset = 118, 606 }; 607 608 static struct i2c_board_info n810_i2c_board_info_2[] __initdata = { 609 { 610 I2C_BOARD_INFO("tlv320aic3x", 0x18), 611 .platform_data = &n810_aic33_data, 612 }, 613 }; 614 615 #ifdef CONFIG_OMAP_MUX 616 static struct omap_board_mux board_mux[] __initdata = { 617 /* I2S codec port pins for McBSP block */ 618 OMAP2420_MUX(EAC_AC_SCLK, OMAP_MUX_MODE1 | OMAP_PIN_INPUT), 619 OMAP2420_MUX(EAC_AC_FS, OMAP_MUX_MODE1 | OMAP_PIN_INPUT), 620 OMAP2420_MUX(EAC_AC_DIN, OMAP_MUX_MODE1 | OMAP_PIN_INPUT), 621 OMAP2420_MUX(EAC_AC_DOUT, OMAP_MUX_MODE1 | OMAP_PIN_OUTPUT), 622 { .reg_offset = OMAP_MUX_TERMINATOR }, 623 }; 624 625 static struct omap_device_pad serial2_pads[] __initdata = { 626 { 627 .name = "uart3_rx_irrx.uart3_rx_irrx", 628 .flags = OMAP_DEVICE_PAD_REMUX | OMAP_DEVICE_PAD_WAKEUP, 629 .enable = OMAP_MUX_MODE0, 630 .idle = OMAP_MUX_MODE3 /* Mux as GPIO for idle */ 631 }, 632 }; 633 634 static inline void board_serial_init(void) 635 { 636 struct omap_board_data bdata; 637 638 bdata.flags = 0; 639 bdata.pads = NULL; 640 bdata.pads_cnt = 0; 641 642 bdata.id = 0; 643 omap_serial_init_port(&bdata, NULL); 644 645 bdata.id = 1; 646 omap_serial_init_port(&bdata, NULL); 647 648 bdata.id = 2; 649 bdata.pads = serial2_pads; 650 bdata.pads_cnt = ARRAY_SIZE(serial2_pads); 651 omap_serial_init_port(&bdata, NULL); 652 } 653 654 #else 655 656 static inline void board_serial_init(void) 657 { 658 omap_serial_init(); 659 } 660 661 #endif 662 663 static void __init n8x0_init_machine(void) 664 { 665 omap2420_mux_init(board_mux, OMAP_PACKAGE_ZAC); 666 /* FIXME: add n810 spi devices */ 667 spi_register_board_info(n800_spi_board_info, 668 ARRAY_SIZE(n800_spi_board_info)); 669 omap_register_i2c_bus(1, 400, n8x0_i2c_board_info_1, 670 ARRAY_SIZE(n8x0_i2c_board_info_1)); 671 omap_register_i2c_bus(2, 400, NULL, 0); 672 if (machine_is_nokia_n810()) 673 i2c_register_board_info(2, n810_i2c_board_info_2, 674 ARRAY_SIZE(n810_i2c_board_info_2)); 675 board_serial_init(); 676 omap_sdrc_init(NULL, NULL); 677 gpmc_onenand_init(board_onenand_data); 678 n8x0_mmc_init(); 679 n8x0_usb_init(); 680 } 681 682 MACHINE_START(NOKIA_N800, "Nokia N800") 683 .atag_offset = 0x100, 684 .reserve = omap_reserve, 685 .map_io = omap242x_map_io, 686 .init_early = omap2420_init_early, 687 .init_irq = omap2_init_irq, 688 .handle_irq = omap2_intc_handle_irq, 689 .init_machine = n8x0_init_machine, 690 .init_late = omap2420_init_late, 691 .timer = &omap2_timer, 692 .restart = omap_prcm_restart, 693 MACHINE_END 694 695 MACHINE_START(NOKIA_N810, "Nokia N810") 696 .atag_offset = 0x100, 697 .reserve = omap_reserve, 698 .map_io = omap242x_map_io, 699 .init_early = omap2420_init_early, 700 .init_irq = omap2_init_irq, 701 .handle_irq = omap2_intc_handle_irq, 702 .init_machine = n8x0_init_machine, 703 .init_late = omap2420_init_late, 704 .timer = &omap2_timer, 705 .restart = omap_prcm_restart, 706 MACHINE_END 707 708 MACHINE_START(NOKIA_N810_WIMAX, "Nokia N810 WiMAX") 709 .atag_offset = 0x100, 710 .reserve = omap_reserve, 711 .map_io = omap242x_map_io, 712 .init_early = omap2420_init_early, 713 .init_irq = omap2_init_irq, 714 .handle_irq = omap2_intc_handle_irq, 715 .init_machine = n8x0_init_machine, 716 .init_late = omap2420_init_late, 717 .timer = &omap2_timer, 718 .restart = omap_prcm_restart, 719 MACHINE_END 720