1/* 2 * Support for the Arcom ZEUS. 3 * 4 * Copyright (C) 2006 Arcom Control Systems Ltd. 5 * 6 * Loosely based on Arcom's 2.6.16.28. 7 * Maintained by Marc Zyngier <maz@misterjones.org> 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/cpufreq.h> 15#include <linux/interrupt.h> 16#include <linux/irq.h> 17#include <linux/pm.h> 18#include <linux/gpio.h> 19#include <linux/serial_8250.h> 20#include <linux/dm9000.h> 21#include <linux/mmc/host.h> 22#include <linux/spi/spi.h> 23#include <linux/spi/pxa2xx_spi.h> 24#include <linux/mtd/mtd.h> 25#include <linux/mtd/partitions.h> 26#include <linux/mtd/physmap.h> 27#include <linux/i2c.h> 28#include <linux/i2c/pxa-i2c.h> 29#include <linux/platform_data/pca953x.h> 30#include <linux/apm-emulation.h> 31#include <linux/can/platform/mcp251x.h> 32#include <linux/regulator/fixed.h> 33#include <linux/regulator/machine.h> 34 35#include <asm/mach-types.h> 36#include <asm/suspend.h> 37#include <asm/system_info.h> 38#include <asm/mach/arch.h> 39#include <asm/mach/map.h> 40 41#include <mach/pxa27x.h> 42#include <mach/regs-uart.h> 43#include <linux/platform_data/usb-ohci-pxa27x.h> 44#include <linux/platform_data/mmc-pxamci.h> 45#include <mach/pxa27x-udc.h> 46#include <mach/udc.h> 47#include <linux/platform_data/video-pxafb.h> 48#include <mach/pm.h> 49#include <mach/audio.h> 50#include <linux/platform_data/pcmcia-pxa2xx_viper.h> 51#include <mach/zeus.h> 52#include <mach/smemc.h> 53 54#include "generic.h" 55 56/* 57 * Interrupt handling 58 */ 59 60static unsigned long zeus_irq_enabled_mask; 61static const int zeus_isa_irqs[] = { 3, 4, 5, 6, 7, 10, 11, 12, }; 62static const int zeus_isa_irq_map[] = { 63 0, /* ISA irq #0, invalid */ 64 0, /* ISA irq #1, invalid */ 65 0, /* ISA irq #2, invalid */ 66 1 << 0, /* ISA irq #3 */ 67 1 << 1, /* ISA irq #4 */ 68 1 << 2, /* ISA irq #5 */ 69 1 << 3, /* ISA irq #6 */ 70 1 << 4, /* ISA irq #7 */ 71 0, /* ISA irq #8, invalid */ 72 0, /* ISA irq #9, invalid */ 73 1 << 5, /* ISA irq #10 */ 74 1 << 6, /* ISA irq #11 */ 75 1 << 7, /* ISA irq #12 */ 76}; 77 78static inline int zeus_irq_to_bitmask(unsigned int irq) 79{ 80 return zeus_isa_irq_map[irq - PXA_ISA_IRQ(0)]; 81} 82 83static inline int zeus_bit_to_irq(int bit) 84{ 85 return zeus_isa_irqs[bit] + PXA_ISA_IRQ(0); 86} 87 88static void zeus_ack_irq(struct irq_data *d) 89{ 90 __raw_writew(zeus_irq_to_bitmask(d->irq), ZEUS_CPLD_ISA_IRQ); 91} 92 93static void zeus_mask_irq(struct irq_data *d) 94{ 95 zeus_irq_enabled_mask &= ~(zeus_irq_to_bitmask(d->irq)); 96} 97 98static void zeus_unmask_irq(struct irq_data *d) 99{ 100 zeus_irq_enabled_mask |= zeus_irq_to_bitmask(d->irq); 101} 102 103static inline unsigned long zeus_irq_pending(void) 104{ 105 return __raw_readw(ZEUS_CPLD_ISA_IRQ) & zeus_irq_enabled_mask; 106} 107 108static void zeus_irq_handler(struct irq_desc *desc) 109{ 110 unsigned int irq; 111 unsigned long pending; 112 113 pending = zeus_irq_pending(); 114 do { 115 /* we're in a chained irq handler, 116 * so ack the interrupt by hand */ 117 desc->irq_data.chip->irq_ack(&desc->irq_data); 118 119 if (likely(pending)) { 120 irq = zeus_bit_to_irq(__ffs(pending)); 121 generic_handle_irq(irq); 122 } 123 pending = zeus_irq_pending(); 124 } while (pending); 125} 126 127static struct irq_chip zeus_irq_chip = { 128 .name = "ISA", 129 .irq_ack = zeus_ack_irq, 130 .irq_mask = zeus_mask_irq, 131 .irq_unmask = zeus_unmask_irq, 132}; 133 134static void __init zeus_init_irq(void) 135{ 136 int level; 137 int isa_irq; 138 139 pxa27x_init_irq(); 140 141 /* Peripheral IRQs. It would be nice to move those inside driver 142 configuration, but it is not supported at the moment. */ 143 irq_set_irq_type(gpio_to_irq(ZEUS_AC97_GPIO), IRQ_TYPE_EDGE_RISING); 144 irq_set_irq_type(gpio_to_irq(ZEUS_WAKEUP_GPIO), IRQ_TYPE_EDGE_RISING); 145 irq_set_irq_type(gpio_to_irq(ZEUS_PTT_GPIO), IRQ_TYPE_EDGE_RISING); 146 irq_set_irq_type(gpio_to_irq(ZEUS_EXTGPIO_GPIO), 147 IRQ_TYPE_EDGE_FALLING); 148 irq_set_irq_type(gpio_to_irq(ZEUS_CAN_GPIO), IRQ_TYPE_EDGE_FALLING); 149 150 /* Setup ISA IRQs */ 151 for (level = 0; level < ARRAY_SIZE(zeus_isa_irqs); level++) { 152 isa_irq = zeus_bit_to_irq(level); 153 irq_set_chip_and_handler(isa_irq, &zeus_irq_chip, 154 handle_edge_irq); 155 irq_clear_status_flags(isa_irq, IRQ_NOREQUEST | IRQ_NOPROBE); 156 } 157 158 irq_set_irq_type(gpio_to_irq(ZEUS_ISA_GPIO), IRQ_TYPE_EDGE_RISING); 159 irq_set_chained_handler(gpio_to_irq(ZEUS_ISA_GPIO), zeus_irq_handler); 160} 161 162 163/* 164 * Platform devices 165 */ 166 167/* Flash */ 168static struct resource zeus_mtd_resources[] = { 169 [0] = { /* NOR Flash (up to 64MB) */ 170 .start = ZEUS_FLASH_PHYS, 171 .end = ZEUS_FLASH_PHYS + SZ_64M - 1, 172 .flags = IORESOURCE_MEM, 173 }, 174 [1] = { /* SRAM */ 175 .start = ZEUS_SRAM_PHYS, 176 .end = ZEUS_SRAM_PHYS + SZ_512K - 1, 177 .flags = IORESOURCE_MEM, 178 }, 179}; 180 181static struct physmap_flash_data zeus_flash_data[] = { 182 [0] = { 183 .width = 2, 184 .parts = NULL, 185 .nr_parts = 0, 186 }, 187}; 188 189static struct platform_device zeus_mtd_devices[] = { 190 [0] = { 191 .name = "physmap-flash", 192 .id = 0, 193 .dev = { 194 .platform_data = &zeus_flash_data[0], 195 }, 196 .resource = &zeus_mtd_resources[0], 197 .num_resources = 1, 198 }, 199}; 200 201/* Serial */ 202static struct resource zeus_serial_resources[] = { 203 { 204 .start = 0x10000000, 205 .end = 0x1000000f, 206 .flags = IORESOURCE_MEM, 207 }, 208 { 209 .start = 0x10800000, 210 .end = 0x1080000f, 211 .flags = IORESOURCE_MEM, 212 }, 213 { 214 .start = 0x11000000, 215 .end = 0x1100000f, 216 .flags = IORESOURCE_MEM, 217 }, 218 { 219 .start = 0x40100000, 220 .end = 0x4010001f, 221 .flags = IORESOURCE_MEM, 222 }, 223 { 224 .start = 0x40200000, 225 .end = 0x4020001f, 226 .flags = IORESOURCE_MEM, 227 }, 228 { 229 .start = 0x40700000, 230 .end = 0x4070001f, 231 .flags = IORESOURCE_MEM, 232 }, 233}; 234 235static struct plat_serial8250_port serial_platform_data[] = { 236 /* External UARTs */ 237 /* FIXME: Shared IRQs on COM1-COM4 will not work properly on v1i1 hardware. */ 238 { /* COM1 */ 239 .mapbase = 0x10000000, 240 .irq = PXA_GPIO_TO_IRQ(ZEUS_UARTA_GPIO), 241 .irqflags = IRQF_TRIGGER_RISING, 242 .uartclk = 14745600, 243 .regshift = 1, 244 .flags = UPF_IOREMAP | UPF_BOOT_AUTOCONF | UPF_SKIP_TEST, 245 .iotype = UPIO_MEM, 246 }, 247 { /* COM2 */ 248 .mapbase = 0x10800000, 249 .irq = PXA_GPIO_TO_IRQ(ZEUS_UARTB_GPIO), 250 .irqflags = IRQF_TRIGGER_RISING, 251 .uartclk = 14745600, 252 .regshift = 1, 253 .flags = UPF_IOREMAP | UPF_BOOT_AUTOCONF | UPF_SKIP_TEST, 254 .iotype = UPIO_MEM, 255 }, 256 { /* COM3 */ 257 .mapbase = 0x11000000, 258 .irq = PXA_GPIO_TO_IRQ(ZEUS_UARTC_GPIO), 259 .irqflags = IRQF_TRIGGER_RISING, 260 .uartclk = 14745600, 261 .regshift = 1, 262 .flags = UPF_IOREMAP | UPF_BOOT_AUTOCONF | UPF_SKIP_TEST, 263 .iotype = UPIO_MEM, 264 }, 265 { /* COM4 */ 266 .mapbase = 0x11800000, 267 .irq = PXA_GPIO_TO_IRQ(ZEUS_UARTD_GPIO), 268 .irqflags = IRQF_TRIGGER_RISING, 269 .uartclk = 14745600, 270 .regshift = 1, 271 .flags = UPF_IOREMAP | UPF_BOOT_AUTOCONF | UPF_SKIP_TEST, 272 .iotype = UPIO_MEM, 273 }, 274 /* Internal UARTs */ 275 { /* FFUART */ 276 .membase = (void *)&FFUART, 277 .mapbase = __PREG(FFUART), 278 .irq = IRQ_FFUART, 279 .uartclk = 921600 * 16, 280 .regshift = 2, 281 .flags = UPF_BOOT_AUTOCONF | UPF_SKIP_TEST, 282 .iotype = UPIO_MEM, 283 }, 284 { /* BTUART */ 285 .membase = (void *)&BTUART, 286 .mapbase = __PREG(BTUART), 287 .irq = IRQ_BTUART, 288 .uartclk = 921600 * 16, 289 .regshift = 2, 290 .flags = UPF_BOOT_AUTOCONF | UPF_SKIP_TEST, 291 .iotype = UPIO_MEM, 292 }, 293 { /* STUART */ 294 .membase = (void *)&STUART, 295 .mapbase = __PREG(STUART), 296 .irq = IRQ_STUART, 297 .uartclk = 921600 * 16, 298 .regshift = 2, 299 .flags = UPF_BOOT_AUTOCONF | UPF_SKIP_TEST, 300 .iotype = UPIO_MEM, 301 }, 302 { }, 303}; 304 305static struct platform_device zeus_serial_device = { 306 .name = "serial8250", 307 .id = PLAT8250_DEV_PLATFORM, 308 .dev = { 309 .platform_data = serial_platform_data, 310 }, 311 .num_resources = ARRAY_SIZE(zeus_serial_resources), 312 .resource = zeus_serial_resources, 313}; 314 315/* Ethernet */ 316static struct resource zeus_dm9k0_resource[] = { 317 [0] = { 318 .start = ZEUS_ETH0_PHYS, 319 .end = ZEUS_ETH0_PHYS + 1, 320 .flags = IORESOURCE_MEM 321 }, 322 [1] = { 323 .start = ZEUS_ETH0_PHYS + 2, 324 .end = ZEUS_ETH0_PHYS + 3, 325 .flags = IORESOURCE_MEM 326 }, 327 [2] = { 328 .start = PXA_GPIO_TO_IRQ(ZEUS_ETH0_GPIO), 329 .end = PXA_GPIO_TO_IRQ(ZEUS_ETH0_GPIO), 330 .flags = IORESOURCE_IRQ | IORESOURCE_IRQ_LOWEDGE, 331 }, 332}; 333 334static struct resource zeus_dm9k1_resource[] = { 335 [0] = { 336 .start = ZEUS_ETH1_PHYS, 337 .end = ZEUS_ETH1_PHYS + 1, 338 .flags = IORESOURCE_MEM 339 }, 340 [1] = { 341 .start = ZEUS_ETH1_PHYS + 2, 342 .end = ZEUS_ETH1_PHYS + 3, 343 .flags = IORESOURCE_MEM, 344 }, 345 [2] = { 346 .start = PXA_GPIO_TO_IRQ(ZEUS_ETH1_GPIO), 347 .end = PXA_GPIO_TO_IRQ(ZEUS_ETH1_GPIO), 348 .flags = IORESOURCE_IRQ | IORESOURCE_IRQ_LOWEDGE, 349 }, 350}; 351 352static struct dm9000_plat_data zeus_dm9k_platdata = { 353 .flags = DM9000_PLATF_16BITONLY, 354}; 355 356static struct platform_device zeus_dm9k0_device = { 357 .name = "dm9000", 358 .id = 0, 359 .num_resources = ARRAY_SIZE(zeus_dm9k0_resource), 360 .resource = zeus_dm9k0_resource, 361 .dev = { 362 .platform_data = &zeus_dm9k_platdata, 363 } 364}; 365 366static struct platform_device zeus_dm9k1_device = { 367 .name = "dm9000", 368 .id = 1, 369 .num_resources = ARRAY_SIZE(zeus_dm9k1_resource), 370 .resource = zeus_dm9k1_resource, 371 .dev = { 372 .platform_data = &zeus_dm9k_platdata, 373 } 374}; 375 376/* External SRAM */ 377static struct resource zeus_sram_resource = { 378 .start = ZEUS_SRAM_PHYS, 379 .end = ZEUS_SRAM_PHYS + ZEUS_SRAM_SIZE * 2 - 1, 380 .flags = IORESOURCE_MEM, 381}; 382 383static struct platform_device zeus_sram_device = { 384 .name = "pxa2xx-8bit-sram", 385 .id = 0, 386 .num_resources = 1, 387 .resource = &zeus_sram_resource, 388}; 389 390/* SPI interface on SSP3 */ 391static struct pxa2xx_spi_master pxa2xx_spi_ssp3_master_info = { 392 .num_chipselect = 1, 393 .enable_dma = 1, 394}; 395 396/* CAN bus on SPI */ 397static struct regulator_consumer_supply can_regulator_consumer = 398 REGULATOR_SUPPLY("vdd", "spi3.0"); 399 400static struct regulator_init_data can_regulator_init_data = { 401 .constraints = { 402 .valid_ops_mask = REGULATOR_CHANGE_STATUS, 403 }, 404 .consumer_supplies = &can_regulator_consumer, 405 .num_consumer_supplies = 1, 406}; 407 408static struct fixed_voltage_config can_regulator_pdata = { 409 .supply_name = "CAN_SHDN", 410 .microvolts = 3300000, 411 .gpio = ZEUS_CAN_SHDN_GPIO, 412 .init_data = &can_regulator_init_data, 413}; 414 415static struct platform_device can_regulator_device = { 416 .name = "reg-fixed-voltage", 417 .id = 0, 418 .dev = { 419 .platform_data = &can_regulator_pdata, 420 }, 421}; 422 423static struct mcp251x_platform_data zeus_mcp2515_pdata = { 424 .oscillator_frequency = 16*1000*1000, 425}; 426 427static struct spi_board_info zeus_spi_board_info[] = { 428 [0] = { 429 .modalias = "mcp2515", 430 .platform_data = &zeus_mcp2515_pdata, 431 .irq = PXA_GPIO_TO_IRQ(ZEUS_CAN_GPIO), 432 .max_speed_hz = 1*1000*1000, 433 .bus_num = 3, 434 .mode = SPI_MODE_0, 435 .chip_select = 0, 436 }, 437}; 438 439/* Leds */ 440static struct gpio_led zeus_leds[] = { 441 [0] = { 442 .name = "zeus:yellow:1", 443 .default_trigger = "heartbeat", 444 .gpio = ZEUS_EXT0_GPIO(3), 445 .active_low = 1, 446 }, 447 [1] = { 448 .name = "zeus:yellow:2", 449 .default_trigger = "default-on", 450 .gpio = ZEUS_EXT0_GPIO(4), 451 .active_low = 1, 452 }, 453 [2] = { 454 .name = "zeus:yellow:3", 455 .default_trigger = "default-on", 456 .gpio = ZEUS_EXT0_GPIO(5), 457 .active_low = 1, 458 }, 459}; 460 461static struct gpio_led_platform_data zeus_leds_info = { 462 .leds = zeus_leds, 463 .num_leds = ARRAY_SIZE(zeus_leds), 464}; 465 466static struct platform_device zeus_leds_device = { 467 .name = "leds-gpio", 468 .id = -1, 469 .dev = { 470 .platform_data = &zeus_leds_info, 471 }, 472}; 473 474static void zeus_cf_reset(int state) 475{ 476 u16 cpld_state = __raw_readw(ZEUS_CPLD_CONTROL); 477 478 if (state) 479 cpld_state |= ZEUS_CPLD_CONTROL_CF_RST; 480 else 481 cpld_state &= ~ZEUS_CPLD_CONTROL_CF_RST; 482 483 __raw_writew(cpld_state, ZEUS_CPLD_CONTROL); 484} 485 486static struct arcom_pcmcia_pdata zeus_pcmcia_info = { 487 .cd_gpio = ZEUS_CF_CD_GPIO, 488 .rdy_gpio = ZEUS_CF_RDY_GPIO, 489 .pwr_gpio = ZEUS_CF_PWEN_GPIO, 490 .reset = zeus_cf_reset, 491}; 492 493static struct platform_device zeus_pcmcia_device = { 494 .name = "zeus-pcmcia", 495 .id = -1, 496 .dev = { 497 .platform_data = &zeus_pcmcia_info, 498 }, 499}; 500 501static struct resource zeus_max6369_resource = { 502 .start = ZEUS_CPLD_EXTWDOG_PHYS, 503 .end = ZEUS_CPLD_EXTWDOG_PHYS, 504 .flags = IORESOURCE_MEM, 505}; 506 507struct platform_device zeus_max6369_device = { 508 .name = "max6369_wdt", 509 .id = -1, 510 .resource = &zeus_max6369_resource, 511 .num_resources = 1, 512}; 513 514/* AC'97 */ 515static pxa2xx_audio_ops_t zeus_ac97_info = { 516 .reset_gpio = 95, 517}; 518 519 520/* 521 * USB host 522 */ 523 524static struct regulator_consumer_supply zeus_ohci_regulator_supplies[] = { 525 REGULATOR_SUPPLY("vbus2", "pxa27x-ohci"), 526}; 527 528static struct regulator_init_data zeus_ohci_regulator_data = { 529 .constraints = { 530 .valid_ops_mask = REGULATOR_CHANGE_STATUS, 531 }, 532 .num_consumer_supplies = ARRAY_SIZE(zeus_ohci_regulator_supplies), 533 .consumer_supplies = zeus_ohci_regulator_supplies, 534}; 535 536static struct fixed_voltage_config zeus_ohci_regulator_config = { 537 .supply_name = "vbus2", 538 .microvolts = 5000000, /* 5.0V */ 539 .gpio = ZEUS_USB2_PWREN_GPIO, 540 .enable_high = 1, 541 .startup_delay = 0, 542 .init_data = &zeus_ohci_regulator_data, 543}; 544 545static struct platform_device zeus_ohci_regulator_device = { 546 .name = "reg-fixed-voltage", 547 .id = 1, 548 .dev = { 549 .platform_data = &zeus_ohci_regulator_config, 550 }, 551}; 552 553static struct pxaohci_platform_data zeus_ohci_platform_data = { 554 .port_mode = PMM_NPS_MODE, 555 /* Clear Power Control Polarity Low and set Power Sense 556 * Polarity Low. Supply power to USB ports. */ 557 .flags = ENABLE_PORT_ALL | POWER_SENSE_LOW, 558}; 559 560static void zeus_register_ohci(void) 561{ 562 /* Port 2 is shared between host and client interface. */ 563 UP2OCR = UP2OCR_HXOE | UP2OCR_HXS | UP2OCR_DMPDE | UP2OCR_DPPDE; 564 565 pxa_set_ohci_info(&zeus_ohci_platform_data); 566} 567 568/* 569 * Flat Panel 570 */ 571 572static void zeus_lcd_power(int on, struct fb_var_screeninfo *si) 573{ 574 gpio_set_value(ZEUS_LCD_EN_GPIO, on); 575} 576 577static void zeus_backlight_power(int on) 578{ 579 gpio_set_value(ZEUS_BKLEN_GPIO, on); 580} 581 582static int zeus_setup_fb_gpios(void) 583{ 584 int err; 585 586 if ((err = gpio_request(ZEUS_LCD_EN_GPIO, "LCD_EN"))) 587 goto out_err; 588 589 if ((err = gpio_direction_output(ZEUS_LCD_EN_GPIO, 0))) 590 goto out_err_lcd; 591 592 if ((err = gpio_request(ZEUS_BKLEN_GPIO, "BKLEN"))) 593 goto out_err_lcd; 594 595 if ((err = gpio_direction_output(ZEUS_BKLEN_GPIO, 0))) 596 goto out_err_bkl; 597 598 return 0; 599 600out_err_bkl: 601 gpio_free(ZEUS_BKLEN_GPIO); 602out_err_lcd: 603 gpio_free(ZEUS_LCD_EN_GPIO); 604out_err: 605 return err; 606} 607 608static struct pxafb_mode_info zeus_fb_mode_info[] = { 609 { 610 .pixclock = 39722, 611 612 .xres = 640, 613 .yres = 480, 614 615 .bpp = 16, 616 617 .hsync_len = 63, 618 .left_margin = 16, 619 .right_margin = 81, 620 621 .vsync_len = 2, 622 .upper_margin = 12, 623 .lower_margin = 31, 624 625 .sync = 0, 626 }, 627}; 628 629static struct pxafb_mach_info zeus_fb_info = { 630 .modes = zeus_fb_mode_info, 631 .num_modes = 1, 632 .lcd_conn = LCD_COLOR_TFT_16BPP | LCD_PCLK_EDGE_FALL, 633 .pxafb_lcd_power = zeus_lcd_power, 634 .pxafb_backlight_power = zeus_backlight_power, 635}; 636 637/* 638 * MMC/SD Device 639 * 640 * The card detect interrupt isn't debounced so we delay it by 250ms 641 * to give the card a chance to fully insert/eject. 642 */ 643 644static struct pxamci_platform_data zeus_mci_platform_data = { 645 .ocr_mask = MMC_VDD_32_33|MMC_VDD_33_34, 646 .detect_delay_ms = 250, 647 .gpio_card_detect = ZEUS_MMC_CD_GPIO, 648 .gpio_card_ro = ZEUS_MMC_WP_GPIO, 649 .gpio_card_ro_invert = 1, 650 .gpio_power = -1 651}; 652 653/* 654 * USB Device Controller 655 */ 656static void zeus_udc_command(int cmd) 657{ 658 switch (cmd) { 659 case PXA2XX_UDC_CMD_DISCONNECT: 660 pr_info("zeus: disconnecting USB client\n"); 661 UP2OCR = UP2OCR_HXOE | UP2OCR_HXS | UP2OCR_DMPDE | UP2OCR_DPPDE; 662 break; 663 664 case PXA2XX_UDC_CMD_CONNECT: 665 pr_info("zeus: connecting USB client\n"); 666 UP2OCR = UP2OCR_HXOE | UP2OCR_DPPUE; 667 break; 668 } 669} 670 671static struct pxa2xx_udc_mach_info zeus_udc_info = { 672 .udc_command = zeus_udc_command, 673}; 674 675static struct platform_device *zeus_devices[] __initdata = { 676 &zeus_serial_device, 677 &zeus_mtd_devices[0], 678 &zeus_dm9k0_device, 679 &zeus_dm9k1_device, 680 &zeus_sram_device, 681 &zeus_leds_device, 682 &zeus_pcmcia_device, 683 &zeus_max6369_device, 684 &can_regulator_device, 685 &zeus_ohci_regulator_device, 686}; 687 688#ifdef CONFIG_PM 689static void zeus_power_off(void) 690{ 691 local_irq_disable(); 692 cpu_suspend(PWRMODE_DEEPSLEEP, pxa27x_finish_suspend); 693} 694#else 695#define zeus_power_off NULL 696#endif 697 698#ifdef CONFIG_APM_EMULATION 699static void zeus_get_power_status(struct apm_power_info *info) 700{ 701 /* Power supply is always present */ 702 info->ac_line_status = APM_AC_ONLINE; 703 info->battery_status = APM_BATTERY_STATUS_NOT_PRESENT; 704 info->battery_flag = APM_BATTERY_FLAG_NOT_PRESENT; 705} 706 707static inline void zeus_setup_apm(void) 708{ 709 apm_get_power_status = zeus_get_power_status; 710} 711#else 712static inline void zeus_setup_apm(void) 713{ 714} 715#endif 716 717static int zeus_get_pcb_info(struct i2c_client *client, unsigned gpio, 718 unsigned ngpio, void *context) 719{ 720 int i; 721 u8 pcb_info = 0; 722 723 for (i = 0; i < 8; i++) { 724 int pcb_bit = gpio + i + 8; 725 726 if (gpio_request(pcb_bit, "pcb info")) { 727 dev_err(&client->dev, "Can't request pcb info %d\n", i); 728 continue; 729 } 730 731 if (gpio_direction_input(pcb_bit)) { 732 dev_err(&client->dev, "Can't read pcb info %d\n", i); 733 gpio_free(pcb_bit); 734 continue; 735 } 736 737 pcb_info |= !!gpio_get_value(pcb_bit) << i; 738 739 gpio_free(pcb_bit); 740 } 741 742 dev_info(&client->dev, "Zeus PCB version %d issue %d\n", 743 pcb_info >> 4, pcb_info & 0xf); 744 745 return 0; 746} 747 748static struct pca953x_platform_data zeus_pca953x_pdata[] = { 749 [0] = { .gpio_base = ZEUS_EXT0_GPIO_BASE, }, 750 [1] = { 751 .gpio_base = ZEUS_EXT1_GPIO_BASE, 752 .setup = zeus_get_pcb_info, 753 }, 754 [2] = { .gpio_base = ZEUS_USER_GPIO_BASE, }, 755}; 756 757static struct i2c_board_info __initdata zeus_i2c_devices[] = { 758 { 759 I2C_BOARD_INFO("pca9535", 0x21), 760 .platform_data = &zeus_pca953x_pdata[0], 761 }, 762 { 763 I2C_BOARD_INFO("pca9535", 0x22), 764 .platform_data = &zeus_pca953x_pdata[1], 765 }, 766 { 767 I2C_BOARD_INFO("pca9535", 0x20), 768 .platform_data = &zeus_pca953x_pdata[2], 769 .irq = PXA_GPIO_TO_IRQ(ZEUS_EXTGPIO_GPIO), 770 }, 771 { I2C_BOARD_INFO("lm75a", 0x48) }, 772 { I2C_BOARD_INFO("24c01", 0x50) }, 773 { I2C_BOARD_INFO("isl1208", 0x6f) }, 774}; 775 776static mfp_cfg_t zeus_pin_config[] __initdata = { 777 /* AC97 */ 778 GPIO28_AC97_BITCLK, 779 GPIO29_AC97_SDATA_IN_0, 780 GPIO30_AC97_SDATA_OUT, 781 GPIO31_AC97_SYNC, 782 783 GPIO15_nCS_1, 784 GPIO78_nCS_2, 785 GPIO80_nCS_4, 786 GPIO33_nCS_5, 787 788 GPIO22_GPIO, 789 GPIO32_MMC_CLK, 790 GPIO92_MMC_DAT_0, 791 GPIO109_MMC_DAT_1, 792 GPIO110_MMC_DAT_2, 793 GPIO111_MMC_DAT_3, 794 GPIO112_MMC_CMD, 795 796 GPIO88_USBH1_PWR, 797 GPIO89_USBH1_PEN, 798 GPIO119_USBH2_PWR, 799 GPIO120_USBH2_PEN, 800 801 GPIO86_LCD_LDD_16, 802 GPIO87_LCD_LDD_17, 803 804 GPIO102_GPIO, 805 GPIO104_CIF_DD_2, 806 GPIO105_CIF_DD_1, 807 808 GPIO81_SSP3_TXD, 809 GPIO82_SSP3_RXD, 810 GPIO83_SSP3_SFRM, 811 GPIO84_SSP3_SCLK, 812 813 GPIO48_nPOE, 814 GPIO49_nPWE, 815 GPIO50_nPIOR, 816 GPIO51_nPIOW, 817 GPIO85_nPCE_1, 818 GPIO54_nPCE_2, 819 GPIO79_PSKTSEL, 820 GPIO55_nPREG, 821 GPIO56_nPWAIT, 822 GPIO57_nIOIS16, 823 GPIO36_GPIO, /* CF CD */ 824 GPIO97_GPIO, /* CF PWREN */ 825 GPIO99_GPIO, /* CF RDY */ 826}; 827 828/* 829 * DM9k MSCx settings: SRAM, 16 bits 830 * 17 cycles delay first access 831 * 5 cycles delay next access 832 * 13 cycles recovery time 833 * faster device 834 */ 835#define DM9K_MSC_VALUE 0xe4c9 836 837static void __init zeus_init(void) 838{ 839 u16 dm9000_msc = DM9K_MSC_VALUE; 840 u32 msc0, msc1; 841 842 system_rev = __raw_readw(ZEUS_CPLD_VERSION); 843 pr_info("Zeus CPLD V%dI%d\n", (system_rev & 0xf0) >> 4, (system_rev & 0x0f)); 844 845 /* Fix timings for dm9000s (CS1/CS2)*/ 846 msc0 = (__raw_readl(MSC0) & 0x0000ffff) | (dm9000_msc << 16); 847 msc1 = (__raw_readl(MSC1) & 0xffff0000) | dm9000_msc; 848 __raw_writel(msc0, MSC0); 849 __raw_writel(msc1, MSC1); 850 851 pm_power_off = zeus_power_off; 852 zeus_setup_apm(); 853 854 pxa2xx_mfp_config(ARRAY_AND_SIZE(zeus_pin_config)); 855 856 platform_add_devices(zeus_devices, ARRAY_SIZE(zeus_devices)); 857 858 zeus_register_ohci(); 859 860 if (zeus_setup_fb_gpios()) 861 pr_err("Failed to setup fb gpios\n"); 862 else 863 pxa_set_fb_info(NULL, &zeus_fb_info); 864 865 pxa_set_mci_info(&zeus_mci_platform_data); 866 pxa_set_udc_info(&zeus_udc_info); 867 pxa_set_ac97_info(&zeus_ac97_info); 868 pxa_set_i2c_info(NULL); 869 i2c_register_board_info(0, ARRAY_AND_SIZE(zeus_i2c_devices)); 870 pxa2xx_set_spi_info(3, &pxa2xx_spi_ssp3_master_info); 871 spi_register_board_info(zeus_spi_board_info, ARRAY_SIZE(zeus_spi_board_info)); 872 873 regulator_has_full_constraints(); 874} 875 876static struct map_desc zeus_io_desc[] __initdata = { 877 { 878 .virtual = (unsigned long)ZEUS_CPLD_VERSION, 879 .pfn = __phys_to_pfn(ZEUS_CPLD_VERSION_PHYS), 880 .length = 0x1000, 881 .type = MT_DEVICE, 882 }, 883 { 884 .virtual = (unsigned long)ZEUS_CPLD_ISA_IRQ, 885 .pfn = __phys_to_pfn(ZEUS_CPLD_ISA_IRQ_PHYS), 886 .length = 0x1000, 887 .type = MT_DEVICE, 888 }, 889 { 890 .virtual = (unsigned long)ZEUS_CPLD_CONTROL, 891 .pfn = __phys_to_pfn(ZEUS_CPLD_CONTROL_PHYS), 892 .length = 0x1000, 893 .type = MT_DEVICE, 894 }, 895 { 896 .virtual = (unsigned long)ZEUS_PC104IO, 897 .pfn = __phys_to_pfn(ZEUS_PC104IO_PHYS), 898 .length = 0x00800000, 899 .type = MT_DEVICE, 900 }, 901}; 902 903static void __init zeus_map_io(void) 904{ 905 pxa27x_map_io(); 906 907 iotable_init(zeus_io_desc, ARRAY_SIZE(zeus_io_desc)); 908 909 /* Clear PSPR to ensure a full restart on wake-up. */ 910 PMCR = PSPR = 0; 911 912 /* enable internal 32.768Khz oscillator (ignore OSCC_OOK) */ 913 OSCC |= OSCC_OON; 914 915 /* Some clock cycles later (from OSCC_ON), programme PCFR (OPDE...). 916 * float chip selects and PCMCIA */ 917 PCFR = PCFR_OPDE | PCFR_DC_EN | PCFR_FS | PCFR_FP; 918} 919 920MACHINE_START(ARCOM_ZEUS, "Arcom/Eurotech ZEUS") 921 /* Maintainer: Marc Zyngier <maz@misterjones.org> */ 922 .atag_offset = 0x100, 923 .map_io = zeus_map_io, 924 .nr_irqs = ZEUS_NR_IRQS, 925 .init_irq = zeus_init_irq, 926 .handle_irq = pxa27x_handle_irq, 927 .init_time = pxa_timer_init, 928 .init_machine = zeus_init, 929 .restart = pxa_restart, 930MACHINE_END 931 932