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 "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 #define TUSB6010_ASYNC_CS 1 40 #define TUSB6010_SYNC_CS 4 41 #define TUSB6010_GPIO_INT 58 42 #define TUSB6010_GPIO_ENABLE 0 43 #define TUSB6010_DMACHAN 0x3f 44 45 #if defined(CONFIG_USB_MUSB_TUSB6010) || defined(CONFIG_USB_MUSB_TUSB6010_MODULE) 46 /* 47 * Enable or disable power to TUSB6010. When enabling, turn on 3.3 V and 48 * 1.5 V voltage regulators of PM companion chip. Companion chip will then 49 * provide then PGOOD signal to TUSB6010 which will release it from reset. 50 */ 51 static int tusb_set_power(int state) 52 { 53 int i, retval = 0; 54 55 if (state) { 56 gpio_set_value(TUSB6010_GPIO_ENABLE, 1); 57 msleep(1); 58 59 /* Wait until TUSB6010 pulls INT pin down */ 60 i = 100; 61 while (i && gpio_get_value(TUSB6010_GPIO_INT)) { 62 msleep(1); 63 i--; 64 } 65 66 if (!i) { 67 printk(KERN_ERR "tusb: powerup failed\n"); 68 retval = -ENODEV; 69 } 70 } else { 71 gpio_set_value(TUSB6010_GPIO_ENABLE, 0); 72 msleep(10); 73 } 74 75 return retval; 76 } 77 78 static struct musb_hdrc_config musb_config = { 79 .multipoint = 1, 80 .dyn_fifo = 1, 81 .num_eps = 16, 82 .ram_bits = 12, 83 }; 84 85 static struct musb_hdrc_platform_data tusb_data = { 86 #ifdef CONFIG_USB_GADGET_MUSB_HDRC 87 .mode = MUSB_OTG, 88 #else 89 .mode = MUSB_HOST, 90 #endif 91 .set_power = tusb_set_power, 92 .min_power = 25, /* x2 = 50 mA drawn from VBUS as peripheral */ 93 .power = 100, /* Max 100 mA VBUS for host mode */ 94 .config = &musb_config, 95 }; 96 97 static void __init n8x0_usb_init(void) 98 { 99 int ret = 0; 100 static char announce[] __initdata = KERN_INFO "TUSB 6010\n"; 101 102 /* PM companion chip power control pin */ 103 ret = gpio_request_one(TUSB6010_GPIO_ENABLE, GPIOF_OUT_INIT_LOW, 104 "TUSB6010 enable"); 105 if (ret != 0) { 106 printk(KERN_ERR "Could not get TUSB power GPIO%i\n", 107 TUSB6010_GPIO_ENABLE); 108 return; 109 } 110 tusb_set_power(0); 111 112 ret = tusb6010_setup_interface(&tusb_data, TUSB6010_REFCLK_19, 2, 113 TUSB6010_ASYNC_CS, TUSB6010_SYNC_CS, 114 TUSB6010_GPIO_INT, TUSB6010_DMACHAN); 115 if (ret != 0) 116 goto err; 117 118 printk(announce); 119 120 return; 121 122 err: 123 gpio_free(TUSB6010_GPIO_ENABLE); 124 } 125 #else 126 127 static void __init n8x0_usb_init(void) {} 128 129 #endif /*CONFIG_USB_MUSB_TUSB6010 */ 130 131 132 static struct omap2_mcspi_device_config p54spi_mcspi_config = { 133 .turbo_mode = 0, 134 }; 135 136 static struct spi_board_info n800_spi_board_info[] __initdata = { 137 { 138 .modalias = "p54spi", 139 .bus_num = 2, 140 .chip_select = 0, 141 .max_speed_hz = 48000000, 142 .controller_data = &p54spi_mcspi_config, 143 }, 144 }; 145 146 #if defined(CONFIG_MTD_ONENAND_OMAP2) || \ 147 defined(CONFIG_MTD_ONENAND_OMAP2_MODULE) 148 149 static struct mtd_partition onenand_partitions[] = { 150 { 151 .name = "bootloader", 152 .offset = 0, 153 .size = 0x20000, 154 .mask_flags = MTD_WRITEABLE, /* Force read-only */ 155 }, 156 { 157 .name = "config", 158 .offset = MTDPART_OFS_APPEND, 159 .size = 0x60000, 160 }, 161 { 162 .name = "kernel", 163 .offset = MTDPART_OFS_APPEND, 164 .size = 0x200000, 165 }, 166 { 167 .name = "initfs", 168 .offset = MTDPART_OFS_APPEND, 169 .size = 0x400000, 170 }, 171 { 172 .name = "rootfs", 173 .offset = MTDPART_OFS_APPEND, 174 .size = MTDPART_SIZ_FULL, 175 }, 176 }; 177 178 static struct omap_onenand_platform_data board_onenand_data[] = { 179 { 180 .cs = 0, 181 .gpio_irq = 26, 182 .parts = onenand_partitions, 183 .nr_parts = ARRAY_SIZE(onenand_partitions), 184 .flags = ONENAND_SYNC_READ, 185 } 186 }; 187 #endif 188 189 #if defined(CONFIG_MENELAUS) && \ 190 (defined(CONFIG_MMC_OMAP) || defined(CONFIG_MMC_OMAP_MODULE)) 191 192 /* 193 * On both N800 and N810, only the first of the two MMC controllers is in use. 194 * The two MMC slots are multiplexed via Menelaus companion chip over I2C. 195 * On N800, both slots are powered via Menelaus. On N810, only one of the 196 * slots is powered via Menelaus. The N810 EMMC is powered via GPIO. 197 * 198 * VMMC slot 1 on both N800 and N810 199 * VDCDC3_APE and VMCS2_APE slot 2 on N800 200 * GPIO23 and GPIO9 slot 2 EMMC on N810 201 * 202 */ 203 #define N8X0_SLOT_SWITCH_GPIO 96 204 #define N810_EMMC_VSD_GPIO 23 205 #define N810_EMMC_VIO_GPIO 9 206 207 static int slot1_cover_open; 208 static int slot2_cover_open; 209 static struct device *mmc_device; 210 211 static int n8x0_mmc_switch_slot(struct device *dev, int slot) 212 { 213 #ifdef CONFIG_MMC_DEBUG 214 dev_dbg(dev, "Choose slot %d\n", slot + 1); 215 #endif 216 gpio_set_value(N8X0_SLOT_SWITCH_GPIO, slot); 217 return 0; 218 } 219 220 static int n8x0_mmc_set_power_menelaus(struct device *dev, int slot, 221 int power_on, int vdd) 222 { 223 int mV; 224 225 #ifdef CONFIG_MMC_DEBUG 226 dev_dbg(dev, "Set slot %d power: %s (vdd %d)\n", slot + 1, 227 power_on ? "on" : "off", vdd); 228 #endif 229 if (slot == 0) { 230 if (!power_on) 231 return menelaus_set_vmmc(0); 232 switch (1 << vdd) { 233 case MMC_VDD_33_34: 234 case MMC_VDD_32_33: 235 case MMC_VDD_31_32: 236 mV = 3100; 237 break; 238 case MMC_VDD_30_31: 239 mV = 3000; 240 break; 241 case MMC_VDD_28_29: 242 mV = 2800; 243 break; 244 case MMC_VDD_165_195: 245 mV = 1850; 246 break; 247 default: 248 BUG(); 249 } 250 return menelaus_set_vmmc(mV); 251 } else { 252 if (!power_on) 253 return menelaus_set_vdcdc(3, 0); 254 switch (1 << vdd) { 255 case MMC_VDD_33_34: 256 case MMC_VDD_32_33: 257 mV = 3300; 258 break; 259 case MMC_VDD_30_31: 260 case MMC_VDD_29_30: 261 mV = 3000; 262 break; 263 case MMC_VDD_28_29: 264 case MMC_VDD_27_28: 265 mV = 2800; 266 break; 267 case MMC_VDD_24_25: 268 case MMC_VDD_23_24: 269 mV = 2400; 270 break; 271 case MMC_VDD_22_23: 272 case MMC_VDD_21_22: 273 mV = 2200; 274 break; 275 case MMC_VDD_20_21: 276 mV = 2000; 277 break; 278 case MMC_VDD_165_195: 279 mV = 1800; 280 break; 281 default: 282 BUG(); 283 } 284 return menelaus_set_vdcdc(3, mV); 285 } 286 return 0; 287 } 288 289 static void n810_set_power_emmc(struct device *dev, 290 int power_on) 291 { 292 dev_dbg(dev, "Set EMMC power %s\n", power_on ? "on" : "off"); 293 294 if (power_on) { 295 gpio_set_value(N810_EMMC_VSD_GPIO, 1); 296 msleep(1); 297 gpio_set_value(N810_EMMC_VIO_GPIO, 1); 298 msleep(1); 299 } else { 300 gpio_set_value(N810_EMMC_VIO_GPIO, 0); 301 msleep(50); 302 gpio_set_value(N810_EMMC_VSD_GPIO, 0); 303 msleep(50); 304 } 305 } 306 307 static int n8x0_mmc_set_power(struct device *dev, int slot, int power_on, 308 int vdd) 309 { 310 if (machine_is_nokia_n800() || slot == 0) 311 return n8x0_mmc_set_power_menelaus(dev, slot, power_on, vdd); 312 313 n810_set_power_emmc(dev, power_on); 314 315 return 0; 316 } 317 318 static int n8x0_mmc_set_bus_mode(struct device *dev, int slot, int bus_mode) 319 { 320 int r; 321 322 dev_dbg(dev, "Set slot %d bus mode %s\n", slot + 1, 323 bus_mode == MMC_BUSMODE_OPENDRAIN ? "open-drain" : "push-pull"); 324 BUG_ON(slot != 0 && slot != 1); 325 slot++; 326 switch (bus_mode) { 327 case MMC_BUSMODE_OPENDRAIN: 328 r = menelaus_set_mmc_opendrain(slot, 1); 329 break; 330 case MMC_BUSMODE_PUSHPULL: 331 r = menelaus_set_mmc_opendrain(slot, 0); 332 break; 333 default: 334 BUG(); 335 } 336 if (r != 0 && printk_ratelimit()) 337 dev_err(dev, "MMC: unable to set bus mode for slot %d\n", 338 slot); 339 return r; 340 } 341 342 static int n8x0_mmc_get_cover_state(struct device *dev, int slot) 343 { 344 slot++; 345 BUG_ON(slot != 1 && slot != 2); 346 if (slot == 1) 347 return slot1_cover_open; 348 else 349 return slot2_cover_open; 350 } 351 352 static void n8x0_mmc_callback(void *data, u8 card_mask) 353 { 354 int bit, *openp, index; 355 356 if (machine_is_nokia_n800()) { 357 bit = 1 << 1; 358 openp = &slot2_cover_open; 359 index = 1; 360 } else { 361 bit = 1; 362 openp = &slot1_cover_open; 363 index = 0; 364 } 365 366 if (card_mask & bit) 367 *openp = 1; 368 else 369 *openp = 0; 370 371 #ifdef CONFIG_MMC_OMAP 372 omap_mmc_notify_cover_event(mmc_device, index, *openp); 373 #else 374 pr_warn("MMC: notify cover event not available\n"); 375 #endif 376 } 377 378 static int n8x0_mmc_late_init(struct device *dev) 379 { 380 int r, bit, *openp; 381 int vs2sel; 382 383 mmc_device = dev; 384 385 r = menelaus_set_slot_sel(1); 386 if (r < 0) 387 return r; 388 389 if (machine_is_nokia_n800()) 390 vs2sel = 0; 391 else 392 vs2sel = 2; 393 394 r = menelaus_set_mmc_slot(2, 0, vs2sel, 1); 395 if (r < 0) 396 return r; 397 398 n8x0_mmc_set_power(dev, 0, MMC_POWER_ON, 16); /* MMC_VDD_28_29 */ 399 n8x0_mmc_set_power(dev, 1, MMC_POWER_ON, 16); 400 401 r = menelaus_set_mmc_slot(1, 1, 0, 1); 402 if (r < 0) 403 return r; 404 r = menelaus_set_mmc_slot(2, 1, vs2sel, 1); 405 if (r < 0) 406 return r; 407 408 r = menelaus_get_slot_pin_states(); 409 if (r < 0) 410 return r; 411 412 if (machine_is_nokia_n800()) { 413 bit = 1 << 1; 414 openp = &slot2_cover_open; 415 } else { 416 bit = 1; 417 openp = &slot1_cover_open; 418 slot2_cover_open = 0; 419 } 420 421 /* All slot pin bits seem to be inversed until first switch change */ 422 if (r == 0xf || r == (0xf & ~bit)) 423 r = ~r; 424 425 if (r & bit) 426 *openp = 1; 427 else 428 *openp = 0; 429 430 r = menelaus_register_mmc_callback(n8x0_mmc_callback, NULL); 431 432 return r; 433 } 434 435 static void n8x0_mmc_shutdown(struct device *dev) 436 { 437 int vs2sel; 438 439 if (machine_is_nokia_n800()) 440 vs2sel = 0; 441 else 442 vs2sel = 2; 443 444 menelaus_set_mmc_slot(1, 0, 0, 0); 445 menelaus_set_mmc_slot(2, 0, vs2sel, 0); 446 } 447 448 static void n8x0_mmc_cleanup(struct device *dev) 449 { 450 menelaus_unregister_mmc_callback(); 451 452 gpio_free(N8X0_SLOT_SWITCH_GPIO); 453 454 if (machine_is_nokia_n810()) { 455 gpio_free(N810_EMMC_VSD_GPIO); 456 gpio_free(N810_EMMC_VIO_GPIO); 457 } 458 } 459 460 /* 461 * MMC controller1 has two slots that are multiplexed via I2C. 462 * MMC controller2 is not in use. 463 */ 464 static struct omap_mmc_platform_data mmc1_data = { 465 .nr_slots = 2, 466 .switch_slot = n8x0_mmc_switch_slot, 467 .init = n8x0_mmc_late_init, 468 .cleanup = n8x0_mmc_cleanup, 469 .shutdown = n8x0_mmc_shutdown, 470 .max_freq = 24000000, 471 .dma_mask = 0xffffffff, 472 .slots[0] = { 473 .wires = 4, 474 .set_power = n8x0_mmc_set_power, 475 .set_bus_mode = n8x0_mmc_set_bus_mode, 476 .get_cover_state = n8x0_mmc_get_cover_state, 477 .ocr_mask = MMC_VDD_165_195 | MMC_VDD_30_31 | 478 MMC_VDD_32_33 | MMC_VDD_33_34, 479 .name = "internal", 480 }, 481 .slots[1] = { 482 .set_power = n8x0_mmc_set_power, 483 .set_bus_mode = n8x0_mmc_set_bus_mode, 484 .get_cover_state = n8x0_mmc_get_cover_state, 485 .ocr_mask = MMC_VDD_165_195 | MMC_VDD_20_21 | 486 MMC_VDD_21_22 | MMC_VDD_22_23 | 487 MMC_VDD_23_24 | MMC_VDD_24_25 | 488 MMC_VDD_27_28 | MMC_VDD_28_29 | 489 MMC_VDD_29_30 | MMC_VDD_30_31 | 490 MMC_VDD_32_33 | MMC_VDD_33_34, 491 .name = "external", 492 }, 493 }; 494 495 static struct omap_mmc_platform_data *mmc_data[OMAP24XX_NR_MMC]; 496 497 static struct gpio n810_emmc_gpios[] __initdata = { 498 { N810_EMMC_VSD_GPIO, GPIOF_OUT_INIT_LOW, "MMC slot 2 Vddf" }, 499 { N810_EMMC_VIO_GPIO, GPIOF_OUT_INIT_LOW, "MMC slot 2 Vdd" }, 500 }; 501 502 static void __init n8x0_mmc_init(void) 503 { 504 int err; 505 506 if (machine_is_nokia_n810()) { 507 mmc1_data.slots[0].name = "external"; 508 509 /* 510 * Some Samsung Movinand chips do not like open-ended 511 * multi-block reads and fall to braind-dead state 512 * while doing so. Reducing the number of blocks in 513 * the transfer or delays in clock disable do not help 514 */ 515 mmc1_data.slots[1].name = "internal"; 516 mmc1_data.slots[1].ban_openended = 1; 517 } 518 519 err = gpio_request_one(N8X0_SLOT_SWITCH_GPIO, GPIOF_OUT_INIT_LOW, 520 "MMC slot switch"); 521 if (err) 522 return; 523 524 if (machine_is_nokia_n810()) { 525 err = gpio_request_array(n810_emmc_gpios, 526 ARRAY_SIZE(n810_emmc_gpios)); 527 if (err) { 528 gpio_free(N8X0_SLOT_SWITCH_GPIO); 529 return; 530 } 531 } 532 533 mmc_data[0] = &mmc1_data; 534 omap242x_init_mmc(mmc_data); 535 } 536 #else 537 538 void __init n8x0_mmc_init(void) 539 { 540 } 541 #endif /* CONFIG_MMC_OMAP */ 542 543 #ifdef CONFIG_MENELAUS 544 545 static int n8x0_auto_sleep_regulators(void) 546 { 547 u32 val; 548 int ret; 549 550 val = EN_VPLL_SLEEP | EN_VMMC_SLEEP \ 551 | EN_VAUX_SLEEP | EN_VIO_SLEEP \ 552 | EN_VMEM_SLEEP | EN_DC3_SLEEP \ 553 | EN_VC_SLEEP | EN_DC2_SLEEP; 554 555 ret = menelaus_set_regulator_sleep(1, val); 556 if (ret < 0) { 557 printk(KERN_ERR "Could not set regulators to sleep on " 558 "menelaus: %u\n", ret); 559 return ret; 560 } 561 return 0; 562 } 563 564 static int n8x0_auto_voltage_scale(void) 565 { 566 int ret; 567 568 ret = menelaus_set_vcore_hw(1400, 1050); 569 if (ret < 0) { 570 printk(KERN_ERR "Could not set VCORE voltage on " 571 "menelaus: %u\n", ret); 572 return ret; 573 } 574 return 0; 575 } 576 577 static int n8x0_menelaus_late_init(struct device *dev) 578 { 579 int ret; 580 581 ret = n8x0_auto_voltage_scale(); 582 if (ret < 0) 583 return ret; 584 ret = n8x0_auto_sleep_regulators(); 585 if (ret < 0) 586 return ret; 587 return 0; 588 } 589 590 #else 591 static int n8x0_menelaus_late_init(struct device *dev) 592 { 593 return 0; 594 } 595 #endif 596 597 static struct menelaus_platform_data n8x0_menelaus_platform_data __initdata = { 598 .late_init = n8x0_menelaus_late_init, 599 }; 600 601 static struct i2c_board_info __initdata n8x0_i2c_board_info_1[] __initdata = { 602 { 603 I2C_BOARD_INFO("menelaus", 0x72), 604 .irq = INT_24XX_SYS_NIRQ, 605 .platform_data = &n8x0_menelaus_platform_data, 606 }, 607 }; 608 609 static struct aic3x_pdata n810_aic33_data __initdata = { 610 .gpio_reset = 118, 611 }; 612 613 static struct i2c_board_info n810_i2c_board_info_2[] __initdata = { 614 { 615 I2C_BOARD_INFO("tlv320aic3x", 0x18), 616 .platform_data = &n810_aic33_data, 617 }, 618 }; 619 620 #ifdef CONFIG_OMAP_MUX 621 static struct omap_board_mux board_mux[] __initdata = { 622 /* I2S codec port pins for McBSP block */ 623 OMAP2420_MUX(EAC_AC_SCLK, OMAP_MUX_MODE1 | OMAP_PIN_INPUT), 624 OMAP2420_MUX(EAC_AC_FS, OMAP_MUX_MODE1 | OMAP_PIN_INPUT), 625 OMAP2420_MUX(EAC_AC_DIN, OMAP_MUX_MODE1 | OMAP_PIN_INPUT), 626 OMAP2420_MUX(EAC_AC_DOUT, OMAP_MUX_MODE1 | OMAP_PIN_OUTPUT), 627 { .reg_offset = OMAP_MUX_TERMINATOR }, 628 }; 629 630 static struct omap_device_pad serial2_pads[] __initdata = { 631 { 632 .name = "uart3_rx_irrx.uart3_rx_irrx", 633 .flags = OMAP_DEVICE_PAD_REMUX | OMAP_DEVICE_PAD_WAKEUP, 634 .enable = OMAP_MUX_MODE0, 635 .idle = OMAP_MUX_MODE3 /* Mux as GPIO for idle */ 636 }, 637 }; 638 639 static inline void board_serial_init(void) 640 { 641 struct omap_board_data bdata; 642 643 bdata.flags = 0; 644 bdata.pads = NULL; 645 bdata.pads_cnt = 0; 646 647 bdata.id = 0; 648 omap_serial_init_port(&bdata, NULL); 649 650 bdata.id = 1; 651 omap_serial_init_port(&bdata, NULL); 652 653 bdata.id = 2; 654 bdata.pads = serial2_pads; 655 bdata.pads_cnt = ARRAY_SIZE(serial2_pads); 656 omap_serial_init_port(&bdata, NULL); 657 } 658 659 #else 660 661 static inline void board_serial_init(void) 662 { 663 omap_serial_init(); 664 } 665 666 #endif 667 668 static void __init n8x0_init_machine(void) 669 { 670 omap2420_mux_init(board_mux, OMAP_PACKAGE_ZAC); 671 /* FIXME: add n810 spi devices */ 672 spi_register_board_info(n800_spi_board_info, 673 ARRAY_SIZE(n800_spi_board_info)); 674 omap_register_i2c_bus(1, 400, n8x0_i2c_board_info_1, 675 ARRAY_SIZE(n8x0_i2c_board_info_1)); 676 omap_register_i2c_bus(2, 400, NULL, 0); 677 if (machine_is_nokia_n810()) 678 i2c_register_board_info(2, n810_i2c_board_info_2, 679 ARRAY_SIZE(n810_i2c_board_info_2)); 680 board_serial_init(); 681 omap_sdrc_init(NULL, NULL); 682 gpmc_onenand_init(board_onenand_data); 683 n8x0_mmc_init(); 684 n8x0_usb_init(); 685 } 686 687 MACHINE_START(NOKIA_N800, "Nokia N800") 688 .atag_offset = 0x100, 689 .reserve = omap_reserve, 690 .map_io = omap242x_map_io, 691 .init_early = omap2420_init_early, 692 .init_irq = omap2_init_irq, 693 .handle_irq = omap2_intc_handle_irq, 694 .init_machine = n8x0_init_machine, 695 .init_late = omap2420_init_late, 696 .timer = &omap2_timer, 697 .restart = omap_prcm_restart, 698 MACHINE_END 699 700 MACHINE_START(NOKIA_N810, "Nokia N810") 701 .atag_offset = 0x100, 702 .reserve = omap_reserve, 703 .map_io = omap242x_map_io, 704 .init_early = omap2420_init_early, 705 .init_irq = omap2_init_irq, 706 .handle_irq = omap2_intc_handle_irq, 707 .init_machine = n8x0_init_machine, 708 .init_late = omap2420_init_late, 709 .timer = &omap2_timer, 710 .restart = omap_prcm_restart, 711 MACHINE_END 712 713 MACHINE_START(NOKIA_N810_WIMAX, "Nokia N810 WiMAX") 714 .atag_offset = 0x100, 715 .reserve = omap_reserve, 716 .map_io = omap242x_map_io, 717 .init_early = omap2420_init_early, 718 .init_irq = omap2_init_irq, 719 .handle_irq = omap2_intc_handle_irq, 720 .init_machine = n8x0_init_machine, 721 .init_late = omap2420_init_late, 722 .timer = &omap2_timer, 723 .restart = omap_prcm_restart, 724 MACHINE_END 725