linux/arch/arm/mach-pxa/zeus.c
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   1// SPDX-License-Identifier: GPL-2.0-only
   2/*
   3 *  Support for the Arcom ZEUS.
   4 *
   5 *  Copyright (C) 2006 Arcom Control Systems Ltd.
   6 *
   7 *  Loosely based on Arcom's 2.6.16.28.
   8 *  Maintained by Marc Zyngier <maz@misterjones.org>
   9 */
  10
  11#include <linux/cpufreq.h>
  12#include <linux/interrupt.h>
  13#include <linux/leds.h>
  14#include <linux/irq.h>
  15#include <linux/pm.h>
  16#include <linux/property.h>
  17#include <linux/gpio.h>
  18#include <linux/gpio/machine.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/platform_data/i2c-pxa.h>
  29#include <linux/platform_data/pca953x.h>
  30#include <linux/apm-emulation.h>
  31#include <linux/regulator/fixed.h>
  32#include <linux/regulator/machine.h>
  33
  34#include <asm/mach-types.h>
  35#include <asm/suspend.h>
  36#include <asm/system_info.h>
  37#include <asm/mach/arch.h>
  38#include <asm/mach/map.h>
  39
  40#include "pxa27x.h"
  41#include "devices.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 "pxa27x-udc.h"
  46#include "udc.h"
  47#include <linux/platform_data/video-pxafb.h>
  48#include "pm.h"
  49#include <mach/audio.h>
  50#include <linux/platform_data/pcmcia-pxa2xx_viper.h>
  51#include "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_controller 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        .init_data      = &can_regulator_init_data,
 412};
 413
 414static struct platform_device can_regulator_device = {
 415        .name   = "reg-fixed-voltage",
 416        .id     = 0,
 417        .dev    = {
 418                .platform_data  = &can_regulator_pdata,
 419        },
 420};
 421
 422static struct gpiod_lookup_table can_regulator_gpiod_table = {
 423        .dev_id = "reg-fixed-voltage.0",
 424        .table = {
 425                GPIO_LOOKUP("gpio-pxa", ZEUS_CAN_SHDN_GPIO,
 426                            NULL, GPIO_ACTIVE_LOW),
 427                { },
 428        },
 429};
 430
 431static const struct property_entry mcp251x_properties[] = {
 432        PROPERTY_ENTRY_U32("clock-frequency", 16000000),
 433        {}
 434};
 435
 436static struct spi_board_info zeus_spi_board_info[] = {
 437        [0] = {
 438                .modalias       = "mcp2515",
 439                .properties     = mcp251x_properties,
 440                .irq            = PXA_GPIO_TO_IRQ(ZEUS_CAN_GPIO),
 441                .max_speed_hz   = 1*1000*1000,
 442                .bus_num        = 3,
 443                .mode           = SPI_MODE_0,
 444                .chip_select    = 0,
 445        },
 446};
 447
 448/* Leds */
 449static struct gpio_led zeus_leds[] = {
 450        [0] = {
 451                .name            = "zeus:yellow:1",
 452                .default_trigger = "heartbeat",
 453                .gpio            = ZEUS_EXT0_GPIO(3),
 454                .active_low      = 1,
 455        },
 456        [1] = {
 457                .name            = "zeus:yellow:2",
 458                .default_trigger = "default-on",
 459                .gpio            = ZEUS_EXT0_GPIO(4),
 460                .active_low      = 1,
 461        },
 462        [2] = {
 463                .name            = "zeus:yellow:3",
 464                .default_trigger = "default-on",
 465                .gpio            = ZEUS_EXT0_GPIO(5),
 466                .active_low      = 1,
 467        },
 468};
 469
 470static struct gpio_led_platform_data zeus_leds_info = {
 471        .leds           = zeus_leds,
 472        .num_leds       = ARRAY_SIZE(zeus_leds),
 473};
 474
 475static struct platform_device zeus_leds_device = {
 476        .name           = "leds-gpio",
 477        .id             = -1,
 478        .dev            = {
 479                .platform_data  = &zeus_leds_info,
 480        },
 481};
 482
 483static void zeus_cf_reset(int state)
 484{
 485        u16 cpld_state = __raw_readw(ZEUS_CPLD_CONTROL);
 486
 487        if (state)
 488                cpld_state |= ZEUS_CPLD_CONTROL_CF_RST;
 489        else
 490                cpld_state &= ~ZEUS_CPLD_CONTROL_CF_RST;
 491
 492        __raw_writew(cpld_state, ZEUS_CPLD_CONTROL);
 493}
 494
 495static struct arcom_pcmcia_pdata zeus_pcmcia_info = {
 496        .cd_gpio        = ZEUS_CF_CD_GPIO,
 497        .rdy_gpio       = ZEUS_CF_RDY_GPIO,
 498        .pwr_gpio       = ZEUS_CF_PWEN_GPIO,
 499        .reset          = zeus_cf_reset,
 500};
 501
 502static struct platform_device zeus_pcmcia_device = {
 503        .name           = "zeus-pcmcia",
 504        .id             = -1,
 505        .dev            = {
 506                .platform_data  = &zeus_pcmcia_info,
 507        },
 508};
 509
 510static struct resource zeus_max6369_resource = {
 511        .start          = ZEUS_CPLD_EXTWDOG_PHYS,
 512        .end            = ZEUS_CPLD_EXTWDOG_PHYS,
 513        .flags          = IORESOURCE_MEM,
 514};
 515
 516struct platform_device zeus_max6369_device = {
 517        .name           = "max6369_wdt",
 518        .id             = -1,
 519        .resource       = &zeus_max6369_resource,
 520        .num_resources  = 1,
 521};
 522
 523/* AC'97 */
 524static pxa2xx_audio_ops_t zeus_ac97_info = {
 525        .reset_gpio = 95,
 526};
 527
 528
 529/*
 530 * USB host
 531 */
 532
 533static struct regulator_consumer_supply zeus_ohci_regulator_supplies[] = {
 534        REGULATOR_SUPPLY("vbus2", "pxa27x-ohci"),
 535};
 536
 537static struct regulator_init_data zeus_ohci_regulator_data = {
 538        .constraints = {
 539                .valid_ops_mask         = REGULATOR_CHANGE_STATUS,
 540        },
 541        .num_consumer_supplies  = ARRAY_SIZE(zeus_ohci_regulator_supplies),
 542        .consumer_supplies      = zeus_ohci_regulator_supplies,
 543};
 544
 545static struct fixed_voltage_config zeus_ohci_regulator_config = {
 546        .supply_name            = "vbus2",
 547        .microvolts             = 5000000, /* 5.0V */
 548        .startup_delay          = 0,
 549        .init_data              = &zeus_ohci_regulator_data,
 550};
 551
 552static struct platform_device zeus_ohci_regulator_device = {
 553        .name           = "reg-fixed-voltage",
 554        .id             = 1,
 555        .dev = {
 556                .platform_data = &zeus_ohci_regulator_config,
 557        },
 558};
 559
 560static struct gpiod_lookup_table zeus_ohci_regulator_gpiod_table = {
 561        .dev_id = "reg-fixed-voltage.0",
 562        .table = {
 563                GPIO_LOOKUP("gpio-pxa", ZEUS_USB2_PWREN_GPIO,
 564                            NULL, GPIO_ACTIVE_HIGH),
 565                { },
 566        },
 567};
 568
 569static struct pxaohci_platform_data zeus_ohci_platform_data = {
 570        .port_mode      = PMM_NPS_MODE,
 571        /* Clear Power Control Polarity Low and set Power Sense
 572         * Polarity Low. Supply power to USB ports. */
 573        .flags          = ENABLE_PORT_ALL | POWER_SENSE_LOW,
 574};
 575
 576static void __init zeus_register_ohci(void)
 577{
 578        /* Port 2 is shared between host and client interface. */
 579        UP2OCR = UP2OCR_HXOE | UP2OCR_HXS | UP2OCR_DMPDE | UP2OCR_DPPDE;
 580
 581        pxa_set_ohci_info(&zeus_ohci_platform_data);
 582}
 583
 584/*
 585 * Flat Panel
 586 */
 587
 588static void zeus_lcd_power(int on, struct fb_var_screeninfo *si)
 589{
 590        gpio_set_value(ZEUS_LCD_EN_GPIO, on);
 591}
 592
 593static void zeus_backlight_power(int on)
 594{
 595        gpio_set_value(ZEUS_BKLEN_GPIO, on);
 596}
 597
 598static int zeus_setup_fb_gpios(void)
 599{
 600        int err;
 601
 602        if ((err = gpio_request(ZEUS_LCD_EN_GPIO, "LCD_EN")))
 603                goto out_err;
 604
 605        if ((err = gpio_direction_output(ZEUS_LCD_EN_GPIO, 0)))
 606                goto out_err_lcd;
 607
 608        if ((err = gpio_request(ZEUS_BKLEN_GPIO, "BKLEN")))
 609                goto out_err_lcd;
 610
 611        if ((err = gpio_direction_output(ZEUS_BKLEN_GPIO, 0)))
 612                goto out_err_bkl;
 613
 614        return 0;
 615
 616out_err_bkl:
 617        gpio_free(ZEUS_BKLEN_GPIO);
 618out_err_lcd:
 619        gpio_free(ZEUS_LCD_EN_GPIO);
 620out_err:
 621        return err;
 622}
 623
 624static struct pxafb_mode_info zeus_fb_mode_info[] = {
 625        {
 626                .pixclock       = 39722,
 627
 628                .xres           = 640,
 629                .yres           = 480,
 630
 631                .bpp            = 16,
 632
 633                .hsync_len      = 63,
 634                .left_margin    = 16,
 635                .right_margin   = 81,
 636
 637                .vsync_len      = 2,
 638                .upper_margin   = 12,
 639                .lower_margin   = 31,
 640
 641                .sync           = 0,
 642        },
 643};
 644
 645static struct pxafb_mach_info zeus_fb_info = {
 646        .modes                  = zeus_fb_mode_info,
 647        .num_modes              = 1,
 648        .lcd_conn               = LCD_COLOR_TFT_16BPP | LCD_PCLK_EDGE_FALL,
 649        .pxafb_lcd_power        = zeus_lcd_power,
 650        .pxafb_backlight_power  = zeus_backlight_power,
 651};
 652
 653/*
 654 * MMC/SD Device
 655 *
 656 * The card detect interrupt isn't debounced so we delay it by 250ms
 657 * to give the card a chance to fully insert/eject.
 658 */
 659
 660static struct pxamci_platform_data zeus_mci_platform_data = {
 661        .ocr_mask               = MMC_VDD_32_33|MMC_VDD_33_34,
 662        .detect_delay_ms        = 250,
 663        .gpio_card_ro_invert    = 1,
 664};
 665
 666static struct gpiod_lookup_table zeus_mci_gpio_table = {
 667        .dev_id = "pxa2xx-mci.0",
 668        .table = {
 669                GPIO_LOOKUP("gpio-pxa", ZEUS_MMC_CD_GPIO,
 670                            "cd", GPIO_ACTIVE_LOW),
 671                GPIO_LOOKUP("gpio-pxa", ZEUS_MMC_WP_GPIO,
 672                            "wp", GPIO_ACTIVE_HIGH),
 673                { },
 674        },
 675};
 676
 677/*
 678 * USB Device Controller
 679 */
 680static void zeus_udc_command(int cmd)
 681{
 682        switch (cmd) {
 683        case PXA2XX_UDC_CMD_DISCONNECT:
 684                pr_info("zeus: disconnecting USB client\n");
 685                UP2OCR = UP2OCR_HXOE | UP2OCR_HXS | UP2OCR_DMPDE | UP2OCR_DPPDE;
 686                break;
 687
 688        case PXA2XX_UDC_CMD_CONNECT:
 689                pr_info("zeus: connecting USB client\n");
 690                UP2OCR = UP2OCR_HXOE | UP2OCR_DPPUE;
 691                break;
 692        }
 693}
 694
 695static struct pxa2xx_udc_mach_info zeus_udc_info = {
 696        .udc_command = zeus_udc_command,
 697};
 698
 699static struct platform_device *zeus_devices[] __initdata = {
 700        &zeus_serial_device,
 701        &zeus_mtd_devices[0],
 702        &zeus_dm9k0_device,
 703        &zeus_dm9k1_device,
 704        &zeus_sram_device,
 705        &zeus_leds_device,
 706        &zeus_pcmcia_device,
 707        &zeus_max6369_device,
 708        &can_regulator_device,
 709        &zeus_ohci_regulator_device,
 710};
 711
 712#ifdef CONFIG_PM
 713static void zeus_power_off(void)
 714{
 715        local_irq_disable();
 716        cpu_suspend(PWRMODE_DEEPSLEEP, pxa27x_finish_suspend);
 717}
 718#else
 719#define zeus_power_off   NULL
 720#endif
 721
 722#ifdef CONFIG_APM_EMULATION
 723static void zeus_get_power_status(struct apm_power_info *info)
 724{
 725        /* Power supply is always present */
 726        info->ac_line_status    = APM_AC_ONLINE;
 727        info->battery_status    = APM_BATTERY_STATUS_NOT_PRESENT;
 728        info->battery_flag      = APM_BATTERY_FLAG_NOT_PRESENT;
 729}
 730
 731static inline void zeus_setup_apm(void)
 732{
 733        apm_get_power_status = zeus_get_power_status;
 734}
 735#else
 736static inline void zeus_setup_apm(void)
 737{
 738}
 739#endif
 740
 741static int zeus_get_pcb_info(struct i2c_client *client, unsigned gpio,
 742                             unsigned ngpio, void *context)
 743{
 744        int i;
 745        u8 pcb_info = 0;
 746
 747        for (i = 0; i < 8; i++) {
 748                int pcb_bit = gpio + i + 8;
 749
 750                if (gpio_request(pcb_bit, "pcb info")) {
 751                        dev_err(&client->dev, "Can't request pcb info %d\n", i);
 752                        continue;
 753                }
 754
 755                if (gpio_direction_input(pcb_bit)) {
 756                        dev_err(&client->dev, "Can't read pcb info %d\n", i);
 757                        gpio_free(pcb_bit);
 758                        continue;
 759                }
 760
 761                pcb_info |= !!gpio_get_value(pcb_bit) << i;
 762
 763                gpio_free(pcb_bit);
 764        }
 765
 766        dev_info(&client->dev, "Zeus PCB version %d issue %d\n",
 767                 pcb_info >> 4, pcb_info & 0xf);
 768
 769        return 0;
 770}
 771
 772static struct pca953x_platform_data zeus_pca953x_pdata[] = {
 773        [0] = { .gpio_base      = ZEUS_EXT0_GPIO_BASE, },
 774        [1] = {
 775                .gpio_base      = ZEUS_EXT1_GPIO_BASE,
 776                .setup          = zeus_get_pcb_info,
 777        },
 778        [2] = { .gpio_base = ZEUS_USER_GPIO_BASE, },
 779};
 780
 781static struct i2c_board_info __initdata zeus_i2c_devices[] = {
 782        {
 783                I2C_BOARD_INFO("pca9535",       0x21),
 784                .platform_data  = &zeus_pca953x_pdata[0],
 785        },
 786        {
 787                I2C_BOARD_INFO("pca9535",       0x22),
 788                .platform_data  = &zeus_pca953x_pdata[1],
 789        },
 790        {
 791                I2C_BOARD_INFO("pca9535",       0x20),
 792                .platform_data  = &zeus_pca953x_pdata[2],
 793                .irq            = PXA_GPIO_TO_IRQ(ZEUS_EXTGPIO_GPIO),
 794        },
 795        { I2C_BOARD_INFO("lm75a",       0x48) },
 796        { I2C_BOARD_INFO("24c01",       0x50) },
 797        { I2C_BOARD_INFO("isl1208",     0x6f) },
 798};
 799
 800static mfp_cfg_t zeus_pin_config[] __initdata = {
 801        /* AC97 */
 802        GPIO28_AC97_BITCLK,
 803        GPIO29_AC97_SDATA_IN_0,
 804        GPIO30_AC97_SDATA_OUT,
 805        GPIO31_AC97_SYNC,
 806
 807        GPIO15_nCS_1,
 808        GPIO78_nCS_2,
 809        GPIO80_nCS_4,
 810        GPIO33_nCS_5,
 811
 812        GPIO22_GPIO,
 813        GPIO32_MMC_CLK,
 814        GPIO92_MMC_DAT_0,
 815        GPIO109_MMC_DAT_1,
 816        GPIO110_MMC_DAT_2,
 817        GPIO111_MMC_DAT_3,
 818        GPIO112_MMC_CMD,
 819
 820        GPIO88_USBH1_PWR,
 821        GPIO89_USBH1_PEN,
 822        GPIO119_USBH2_PWR,
 823        GPIO120_USBH2_PEN,
 824
 825        GPIO86_LCD_LDD_16,
 826        GPIO87_LCD_LDD_17,
 827
 828        GPIO102_GPIO,
 829        GPIO104_CIF_DD_2,
 830        GPIO105_CIF_DD_1,
 831
 832        GPIO81_SSP3_TXD,
 833        GPIO82_SSP3_RXD,
 834        GPIO83_SSP3_SFRM,
 835        GPIO84_SSP3_SCLK,
 836
 837        GPIO48_nPOE,
 838        GPIO49_nPWE,
 839        GPIO50_nPIOR,
 840        GPIO51_nPIOW,
 841        GPIO85_nPCE_1,
 842        GPIO54_nPCE_2,
 843        GPIO79_PSKTSEL,
 844        GPIO55_nPREG,
 845        GPIO56_nPWAIT,
 846        GPIO57_nIOIS16,
 847        GPIO36_GPIO,            /* CF CD */
 848        GPIO97_GPIO,            /* CF PWREN */
 849        GPIO99_GPIO,            /* CF RDY */
 850};
 851
 852/*
 853 * DM9k MSCx settings:  SRAM, 16 bits
 854 *                      17 cycles delay first access
 855 *                       5 cycles delay next access
 856 *                      13 cycles recovery time
 857 *                      faster device
 858 */
 859#define DM9K_MSC_VALUE          0xe4c9
 860
 861static void __init zeus_init(void)
 862{
 863        u16 dm9000_msc = DM9K_MSC_VALUE;
 864        u32 msc0, msc1;
 865
 866        system_rev = __raw_readw(ZEUS_CPLD_VERSION);
 867        pr_info("Zeus CPLD V%dI%d\n", (system_rev & 0xf0) >> 4, (system_rev & 0x0f));
 868
 869        /* Fix timings for dm9000s (CS1/CS2)*/
 870        msc0 = (__raw_readl(MSC0) & 0x0000ffff) | (dm9000_msc << 16);
 871        msc1 = (__raw_readl(MSC1) & 0xffff0000) | dm9000_msc;
 872        __raw_writel(msc0, MSC0);
 873        __raw_writel(msc1, MSC1);
 874
 875        pm_power_off = zeus_power_off;
 876        zeus_setup_apm();
 877
 878        pxa2xx_mfp_config(ARRAY_AND_SIZE(zeus_pin_config));
 879
 880        gpiod_add_lookup_table(&can_regulator_gpiod_table);
 881        gpiod_add_lookup_table(&zeus_ohci_regulator_gpiod_table);
 882        platform_add_devices(zeus_devices, ARRAY_SIZE(zeus_devices));
 883
 884        zeus_register_ohci();
 885
 886        if (zeus_setup_fb_gpios())
 887                pr_err("Failed to setup fb gpios\n");
 888        else
 889                pxa_set_fb_info(NULL, &zeus_fb_info);
 890
 891        gpiod_add_lookup_table(&zeus_mci_gpio_table);
 892        pxa_set_mci_info(&zeus_mci_platform_data);
 893        pxa_set_udc_info(&zeus_udc_info);
 894        pxa_set_ac97_info(&zeus_ac97_info);
 895        pxa_set_i2c_info(NULL);
 896        i2c_register_board_info(0, ARRAY_AND_SIZE(zeus_i2c_devices));
 897        pxa2xx_set_spi_info(3, &pxa2xx_spi_ssp3_master_info);
 898        spi_register_board_info(zeus_spi_board_info, ARRAY_SIZE(zeus_spi_board_info));
 899
 900        regulator_has_full_constraints();
 901}
 902
 903static struct map_desc zeus_io_desc[] __initdata = {
 904        {
 905                .virtual = (unsigned long)ZEUS_CPLD_VERSION,
 906                .pfn     = __phys_to_pfn(ZEUS_CPLD_VERSION_PHYS),
 907                .length  = 0x1000,
 908                .type    = MT_DEVICE,
 909        },
 910        {
 911                .virtual = (unsigned long)ZEUS_CPLD_ISA_IRQ,
 912                .pfn     = __phys_to_pfn(ZEUS_CPLD_ISA_IRQ_PHYS),
 913                .length  = 0x1000,
 914                .type    = MT_DEVICE,
 915        },
 916        {
 917                .virtual = (unsigned long)ZEUS_CPLD_CONTROL,
 918                .pfn     = __phys_to_pfn(ZEUS_CPLD_CONTROL_PHYS),
 919                .length  = 0x1000,
 920                .type    = MT_DEVICE,
 921        },
 922        {
 923                .virtual = (unsigned long)ZEUS_PC104IO,
 924                .pfn     = __phys_to_pfn(ZEUS_PC104IO_PHYS),
 925                .length  = 0x00800000,
 926                .type    = MT_DEVICE,
 927        },
 928};
 929
 930static void __init zeus_map_io(void)
 931{
 932        pxa27x_map_io();
 933
 934        iotable_init(zeus_io_desc, ARRAY_SIZE(zeus_io_desc));
 935
 936        /* Clear PSPR to ensure a full restart on wake-up. */
 937        PMCR = PSPR = 0;
 938
 939        /* enable internal 32.768Khz oscillator (ignore OSCC_OOK) */
 940        writel(readl(OSCC) | OSCC_OON, OSCC);
 941
 942        /* Some clock cycles later (from OSCC_ON), programme PCFR (OPDE...).
 943         * float chip selects and PCMCIA */
 944        PCFR = PCFR_OPDE | PCFR_DC_EN | PCFR_FS | PCFR_FP;
 945}
 946
 947MACHINE_START(ARCOM_ZEUS, "Arcom/Eurotech ZEUS")
 948        /* Maintainer: Marc Zyngier <maz@misterjones.org> */
 949        .atag_offset    = 0x100,
 950        .map_io         = zeus_map_io,
 951        .nr_irqs        = ZEUS_NR_IRQS,
 952        .init_irq       = zeus_init_irq,
 953        .handle_irq     = pxa27x_handle_irq,
 954        .init_time      = pxa_timer_init,
 955        .init_machine   = zeus_init,
 956        .restart        = pxa_restart,
 957MACHINE_END
 958
 959