arch/arm/mach-pxa/corgi.c

   1 /*
   2  * Support for Sharp SL-C7xx PDAs
   3  * Models: SL-C700 (Corgi), SL-C750 (Shepherd), SL-C760 (Husky)
   4  *
   5  * Copyright (c) 2004-2005 Richard Purdie
   6  *
   7  * Based on Sharp's 2.4 kernel patches/lubbock.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
  15 #include <linux/kernel.h>
  16 #include <linux/init.h>
  17 #include <linux/platform_device.h>
  18 #include <linux/major.h>
  19 #include <linux/fs.h>
  20 #include <linux/interrupt.h>
  21 #include <linux/mmc/host.h>
  22 #include <linux/mtd/physmap.h>
  23 #include <linux/pm.h>
  24 #include <linux/gpio.h>
  25 #include <linux/backlight.h>
  26 #include <linux/i2c.h>
  27 #include <linux/io.h>
  28 #include <linux/spi/spi.h>
  29 #include <linux/spi/ads7846.h>
  30 #include <linux/spi/corgi_lcd.h>
  31 #include <linux/mtd/sharpsl.h>
  32 #include <video/w100fb.h>
  33
  34 #include <asm/setup.h>
  35 #include <asm/memory.h>
  36 #include <asm/mach-types.h>
  37 #include <mach/hardware.h>
  38 #include <asm/irq.h>
  39 #include <asm/system.h>
  40
  41 #include <asm/mach/arch.h>
  42 #include <asm/mach/map.h>
  43 #include <asm/mach/irq.h>
  44
  45 #include <mach/pxa25x.h>
  46 #include <plat/i2c.h>
  47 #include <mach/irda.h>
  48 #include <mach/mmc.h>
  49 #include <mach/udc.h>
  50 #include <mach/pxa2xx_spi.h>
  51 #include <mach/corgi.h>
  52 #include <mach/sharpsl.h>
  53
  54 #include <asm/mach/sharpsl_param.h>
  55 #include <asm/hardware/scoop.h>
  56
  57 #include "generic.h"
  58 #include "devices.h"
  59 #include "sharpsl.h"
  60
  61 static unsigned long corgi_pin_config[] __initdata = {
  62         /* Static Memory I/O */
  63         GPIO78_nCS_2,   /* w100fb */
  64         GPIO80_nCS_4,   /* scoop */
  65
  66         /* SSP1 */
  67         GPIO23_SSP1_SCLK,
  68         GPIO25_SSP1_TXD,
  69         GPIO26_SSP1_RXD,
  70         GPIO24_GPIO,    /* CORGI_GPIO_ADS7846_CS - SFRM as chip select */
  71
  72         /* I2S */
  73         GPIO28_I2S_BITCLK_OUT,
  74         GPIO29_I2S_SDATA_IN,
  75         GPIO30_I2S_SDATA_OUT,
  76         GPIO31_I2S_SYNC,
  77         GPIO32_I2S_SYSCLK,
  78
  79         /* Infra-Red */
  80         GPIO47_FICP_TXD,
  81         GPIO46_FICP_RXD,
  82
  83         /* FFUART */
  84         GPIO40_FFUART_DTR,
  85         GPIO41_FFUART_RTS,
  86         GPIO39_FFUART_TXD,
  87         GPIO37_FFUART_DSR,
  88         GPIO34_FFUART_RXD,
  89         GPIO35_FFUART_CTS,
  90
  91         /* PC Card */
  92         GPIO48_nPOE,
  93         GPIO49_nPWE,
  94         GPIO50_nPIOR,
  95         GPIO51_nPIOW,
  96         GPIO52_nPCE_1,
  97         GPIO53_nPCE_2,
  98         GPIO54_nPSKTSEL,
  99         GPIO55_nPREG,
 100         GPIO56_nPWAIT,
 101         GPIO57_nIOIS16,
 102
 103         /* MMC */
 104         GPIO6_MMC_CLK,
 105         GPIO8_MMC_CS0,
 106
 107         /* GPIO */
 108         GPIO9_GPIO,     /* CORGI_GPIO_nSD_DETECT */
 109         GPIO7_GPIO,     /* CORGI_GPIO_nSD_WP */
 110         GPIO33_GPIO,    /* CORGI_GPIO_SD_PWR */
 111         GPIO22_GPIO,    /* CORGI_GPIO_IR_ON */
 112         GPIO44_GPIO,    /* CORGI_GPIO_HSYNC */
 113
 114         GPIO1_GPIO | WAKEUP_ON_EDGE_RISE,
 115 };
 116
 117 /*
 118  * Corgi SCOOP Device
 119  */
 120 static struct resource corgi_scoop_resources[] = {
 121         [0] = {
 122                 .start          = 0x10800000,
 123                 .end            = 0x10800fff,
 124                 .flags          = IORESOURCE_MEM,
 125         },
 126 };
 127
 128 static struct scoop_config corgi_scoop_setup = {
 129         .io_dir         = CORGI_SCOOP_IO_DIR,
 130         .io_out         = CORGI_SCOOP_IO_OUT,
 131         .gpio_base      = CORGI_SCOOP_GPIO_BASE,
 132 };
 133
 134 struct platform_device corgiscoop_device = {
 135         .name           = "sharp-scoop",
 136         .id             = -1,
 137         .dev            = {
 138                 .platform_data  = &corgi_scoop_setup,
 139         },
 140         .num_resources  = ARRAY_SIZE(corgi_scoop_resources),
 141         .resource       = corgi_scoop_resources,
 142 };
 143
 144 static struct scoop_pcmcia_dev corgi_pcmcia_scoop[] = {
 145 {
 146         .dev        = &corgiscoop_device.dev,
 147         .irq        = CORGI_IRQ_GPIO_CF_IRQ,
 148         .cd_irq     = CORGI_IRQ_GPIO_CF_CD,
 149         .cd_irq_str = "PCMCIA0 CD",
 150 },
 151 };
 152
 153 static struct scoop_pcmcia_config corgi_pcmcia_config = {
 154         .devs         = &corgi_pcmcia_scoop[0],
 155         .num_devs     = 1,
 156 };
 157
 158 EXPORT_SYMBOL(corgiscoop_device);
 159
 160 static struct w100_mem_info corgi_fb_mem = {
 161         .ext_cntl          = 0x00040003,
 162         .sdram_mode_reg    = 0x00650021,
 163         .ext_timing_cntl   = 0x10002a4a,
 164         .io_cntl           = 0x7ff87012,
 165         .size              = 0x1fffff,
 166 };
 167
 168 static struct w100_gen_regs corgi_fb_regs = {
 169         .lcd_format    = 0x00000003,
 170         .lcdd_cntl1    = 0x01CC0000,
 171         .lcdd_cntl2    = 0x0003FFFF,
 172         .genlcd_cntl1  = 0x00FFFF0D,
 173         .genlcd_cntl2  = 0x003F3003,
 174         .genlcd_cntl3  = 0x000102aa,
 175 };
 176
 177 static struct w100_gpio_regs corgi_fb_gpio = {
 178         .init_data1   = 0x000000bf,
 179         .init_data2   = 0x00000000,
 180         .gpio_dir1    = 0x00000000,
 181         .gpio_oe1     = 0x03c0feff,
 182         .gpio_dir2    = 0x00000000,
 183         .gpio_oe2     = 0x00000000,
 184 };
 185
 186 static struct w100_mode corgi_fb_modes[] = {
 187 {
 188         .xres            = 480,
 189         .yres            = 640,
 190         .left_margin     = 0x56,
 191         .right_margin    = 0x55,
 192         .upper_margin    = 0x03,
 193         .lower_margin    = 0x00,
 194         .crtc_ss         = 0x82360056,
 195         .crtc_ls         = 0xA0280000,
 196         .crtc_gs         = 0x80280028,
 197         .crtc_vpos_gs    = 0x02830002,
 198         .crtc_rev        = 0x00400008,
 199         .crtc_dclk       = 0xA0000000,
 200         .crtc_gclk       = 0x8015010F,
 201         .crtc_goe        = 0x80100110,
 202         .crtc_ps1_active = 0x41060010,
 203         .pll_freq        = 75,
 204         .fast_pll_freq   = 100,
 205         .sysclk_src      = CLK_SRC_PLL,
 206         .sysclk_divider  = 0,
 207         .pixclk_src      = CLK_SRC_PLL,
 208         .pixclk_divider  = 2,
 209         .pixclk_divider_rotated = 6,
 210 },{
 211         .xres            = 240,
 212         .yres            = 320,
 213         .left_margin     = 0x27,
 214         .right_margin    = 0x2e,
 215         .upper_margin    = 0x01,
 216         .lower_margin    = 0x00,
 217         .crtc_ss         = 0x81170027,
 218         .crtc_ls         = 0xA0140000,
 219         .crtc_gs         = 0xC0140014,
 220         .crtc_vpos_gs    = 0x00010141,
 221         .crtc_rev        = 0x00400008,
 222         .crtc_dclk       = 0xA0000000,
 223         .crtc_gclk       = 0x8015010F,
 224         .crtc_goe        = 0x80100110,
 225         .crtc_ps1_active = 0x41060010,
 226         .pll_freq        = 0,
 227         .fast_pll_freq   = 0,
 228         .sysclk_src      = CLK_SRC_XTAL,
 229         .sysclk_divider  = 0,
 230         .pixclk_src      = CLK_SRC_XTAL,
 231         .pixclk_divider  = 1,
 232         .pixclk_divider_rotated = 1,
 233 },
 234
 235 };
 236
 237 static struct w100fb_mach_info corgi_fb_info = {
 238         .init_mode  = INIT_MODE_ROTATED,
 239         .mem        = &corgi_fb_mem,
 240         .regs       = &corgi_fb_regs,
 241         .modelist   = &corgi_fb_modes[0],
 242         .num_modes  = 2,
 243         .gpio       = &corgi_fb_gpio,
 244         .xtal_freq  = 12500000,
 245         .xtal_dbl   = 0,
 246 };
 247
 248 static struct resource corgi_fb_resources[] = {
 249         [0] = {
 250                 .start   = 0x08000000,
 251                 .end     = 0x08ffffff,
 252                 .flags   = IORESOURCE_MEM,
 253         },
 254 };
 255
 256 static struct platform_device corgifb_device = {
 257         .name           = "w100fb",
 258         .id             = -1,
 259         .num_resources  = ARRAY_SIZE(corgi_fb_resources),
 260         .resource       = corgi_fb_resources,
 261         .dev            = {
 262                 .platform_data = &corgi_fb_info,
 263         },
 264
 265 };
 266
 267 /*
 268  * Corgi Keyboard Device
 269  */
 270 static struct platform_device corgikbd_device = {
 271         .name           = "corgi-keyboard",
 272         .id             = -1,
 273 };
 274
 275 /*
 276  * Corgi LEDs
 277  */
 278 static struct gpio_led corgi_gpio_leds[] = {
 279         {
 280                 .name                   = "corgi:amber:charge",
 281                 .default_trigger        = "sharpsl-charge",
 282                 .gpio                   = CORGI_GPIO_LED_ORANGE,
 283         },
 284         {
 285                 .name                   = "corgi:green:mail",
 286                 .default_trigger        = "nand-disk",
 287                 .gpio                   = CORGI_GPIO_LED_GREEN,
 288         },
 289 };
 290
 291 static struct gpio_led_platform_data corgi_gpio_leds_info = {
 292         .leds           = corgi_gpio_leds,
 293         .num_leds       = ARRAY_SIZE(corgi_gpio_leds),
 294 };
 295
 296 static struct platform_device corgiled_device = {
 297         .name           = "leds-gpio",
 298         .id             = -1,
 299         .dev            = {
 300                 .platform_data = &corgi_gpio_leds_info,
 301         },
 302 };
 303
 304 /*
 305  * MMC/SD Device
 306  *
 307  * The card detect interrupt isn't debounced so we delay it by 250ms
 308  * to give the card a chance to fully insert/eject.
 309  */
 310 static struct pxamci_platform_data corgi_mci_platform_data = {
 311         .ocr_mask               = MMC_VDD_32_33|MMC_VDD_33_34,
 312         .gpio_card_detect       = -1,
 313         .gpio_card_ro           = CORGI_GPIO_nSD_WP,
 314         .gpio_power             = CORGI_GPIO_SD_PWR,
 315 };
 316
 317
 318 /*
 319  * Irda
 320  */
 321 static void corgi_irda_transceiver_mode(struct device *dev, int mode)
 322 {
 323         gpio_set_value(CORGI_GPIO_IR_ON, mode & IR_OFF);
 324         pxa2xx_transceiver_mode(dev, mode);
 325 }
 326
 327 static int corgi_irda_startup(struct device *dev)
 328 {
 329         int err;
 330
 331         err = gpio_request(CORGI_GPIO_IR_ON, "IR_ON");
 332         if (err)
 333                 return err;
 334
 335         gpio_direction_output(CORGI_GPIO_IR_ON, 1);
 336         return 0;
 337 }
 338
 339 static void corgi_irda_shutdown(struct device *dev)
 340 {
 341         gpio_free(CORGI_GPIO_IR_ON);
 342 }
 343
 344 static struct pxaficp_platform_data corgi_ficp_platform_data = {
 345         .transceiver_cap        = IR_SIRMODE | IR_OFF,
 346         .transceiver_mode       = corgi_irda_transceiver_mode,
 347         .startup                = corgi_irda_startup,
 348         .shutdown               = corgi_irda_shutdown,
 349 };
 350
 351
 352 /*
 353  * USB Device Controller
 354  */
 355 static struct pxa2xx_udc_mach_info udc_info __initdata = {
 356         /* no connect GPIO; corgi can't tell connection status */
 357         .gpio_pullup            = CORGI_GPIO_USB_PULLUP,
 358 };
 359
 360 #if defined(CONFIG_SPI_PXA2XX) || defined(CONFIG_SPI_PXA2XX_MASTER)
 361 static struct pxa2xx_spi_master corgi_spi_info = {
 362         .num_chipselect = 3,
 363 };
 364
 365 static void corgi_wait_for_hsync(void)
 366 {
 367         while (gpio_get_value(CORGI_GPIO_HSYNC))
 368                 cpu_relax();
 369
 370         while (!gpio_get_value(CORGI_GPIO_HSYNC))
 371                 cpu_relax();
 372 }
 373
 374 static struct ads7846_platform_data corgi_ads7846_info = {
 375         .model                  = 7846,
 376         .vref_delay_usecs       = 100,
 377         .x_plate_ohms           = 419,
 378         .y_plate_ohms           = 486,
 379         .gpio_pendown           = CORGI_GPIO_TP_INT,
 380         .wait_for_sync          = corgi_wait_for_hsync,
 381 };
 382
 383 static struct pxa2xx_spi_chip corgi_ads7846_chip = {
 384         .gpio_cs        = CORGI_GPIO_ADS7846_CS,
 385 };
 386
 387 static void corgi_bl_kick_battery(void)
 388 {
 389         void (*kick_batt)(void);
 390
 391         kick_batt = symbol_get(sharpsl_battery_kick);
 392         if (kick_batt) {
 393                 kick_batt();
 394                 symbol_put(sharpsl_battery_kick);
 395         }
 396 }
 397
 398 static struct corgi_lcd_platform_data corgi_lcdcon_info = {
 399         .init_mode              = CORGI_LCD_MODE_VGA,
 400         .max_intensity          = 0x2f,
 401         .default_intensity      = 0x1f,
 402         .limit_mask             = 0x0b,
 403         .gpio_backlight_cont    = CORGI_GPIO_BACKLIGHT_CONT,
 404         .gpio_backlight_on      = -1,
 405         .kick_battery           = corgi_bl_kick_battery,
 406 };
 407
 408 static struct pxa2xx_spi_chip corgi_lcdcon_chip = {
 409         .gpio_cs        = CORGI_GPIO_LCDCON_CS,
 410 };
 411
 412 static struct pxa2xx_spi_chip corgi_max1111_chip = {
 413         .gpio_cs        = CORGI_GPIO_MAX1111_CS,
 414 };
 415
 416 static struct spi_board_info corgi_spi_devices[] = {
 417         {
 418                 .modalias       = "ads7846",
 419                 .max_speed_hz   = 1200000,
 420                 .bus_num        = 1,
 421                 .chip_select    = 0,
 422                 .platform_data  = &corgi_ads7846_info,
 423                 .controller_data= &corgi_ads7846_chip,
 424                 .irq            = gpio_to_irq(CORGI_GPIO_TP_INT),
 425         }, {
 426                 .modalias       = "corgi-lcd",
 427                 .max_speed_hz   = 50000,
 428                 .bus_num        = 1,
 429                 .chip_select    = 1,
 430                 .platform_data  = &corgi_lcdcon_info,
 431                 .controller_data= &corgi_lcdcon_chip,
 432         }, {
 433                 .modalias       = "max1111",
 434                 .max_speed_hz   = 450000,
 435                 .bus_num        = 1,
 436                 .chip_select    = 2,
 437                 .controller_data= &corgi_max1111_chip,
 438         },
 439 };
 440
 441 static void __init corgi_init_spi(void)
 442 {
 443         pxa2xx_set_spi_info(1, &corgi_spi_info);
 444         spi_register_board_info(ARRAY_AND_SIZE(corgi_spi_devices));
 445 }
 446 #else
 447 static inline void corgi_init_spi(void) {}
 448 #endif
 449
 450 static struct mtd_partition sharpsl_nand_partitions[] = {
 451         {
 452                 .name = "System Area",
 453                 .offset = 0,
 454                 .size = 7 * 1024 * 1024,
 455         },
 456         {
 457                 .name = "Root Filesystem",
 458                 .offset = 7 * 1024 * 1024,
 459                 .size = 25 * 1024 * 1024,
 460         },
 461         {
 462                 .name = "Home Filesystem",
 463                 .offset = MTDPART_OFS_APPEND,
 464                 .size = MTDPART_SIZ_FULL,
 465         },
 466 };
 467
 468 static uint8_t scan_ff_pattern[] = { 0xff, 0xff };
 469
 470 static struct nand_bbt_descr sharpsl_bbt = {
 471         .options = 0,
 472         .offs = 4,
 473         .len = 2,
 474         .pattern = scan_ff_pattern
 475 };
 476
 477 static struct sharpsl_nand_platform_data sharpsl_nand_platform_data = {
 478         .badblock_pattern       = &sharpsl_bbt,
 479         .partitions             = sharpsl_nand_partitions,
 480         .nr_partitions          = ARRAY_SIZE(sharpsl_nand_partitions),
 481 };
 482
 483 static struct resource sharpsl_nand_resources[] = {
 484         {
 485                 .start  = 0x0C000000,
 486                 .end    = 0x0C000FFF,
 487                 .flags  = IORESOURCE_MEM,
 488         },
 489 };
 490
 491 static struct platform_device sharpsl_nand_device = {
 492         .name           = "sharpsl-nand",
 493         .id             = -1,
 494         .resource       = sharpsl_nand_resources,
 495         .num_resources  = ARRAY_SIZE(sharpsl_nand_resources),
 496         .dev.platform_data      = &sharpsl_nand_platform_data,
 497 };
 498
 499 static struct mtd_partition sharpsl_rom_parts[] = {
 500         {
 501                 .name   ="Boot PROM Filesystem",
 502                 .offset = 0x00120000,
 503                 .size   = MTDPART_SIZ_FULL,
 504         },
 505 };
 506
 507 static struct physmap_flash_data sharpsl_rom_data = {
 508         .width          = 2,
 509         .nr_parts       = ARRAY_SIZE(sharpsl_rom_parts),
 510         .parts          = sharpsl_rom_parts,
 511 };
 512
 513 static struct resource sharpsl_rom_resources[] = {
 514         {
 515                 .start  = 0x00000000,
 516                 .end    = 0x007fffff,
 517                 .flags  = IORESOURCE_MEM,
 518         },
 519 };
 520
 521 static struct platform_device sharpsl_rom_device = {
 522         .name   = "physmap-flash",
 523         .id     = -1,
 524         .resource = sharpsl_rom_resources,
 525         .num_resources = ARRAY_SIZE(sharpsl_rom_resources),
 526         .dev.platform_data = &sharpsl_rom_data,
 527 };
 528
 529 static struct platform_device *devices[] __initdata = {
 530         &corgiscoop_device,
 531         &corgifb_device,
 532         &corgikbd_device,
 533         &corgiled_device,
 534         &sharpsl_nand_device,
 535         &sharpsl_rom_device,
 536 };
 537
 538 static struct i2c_board_info __initdata corgi_i2c_devices[] = {
 539         { I2C_BOARD_INFO("wm8731", 0x1b) },
 540 };
 541
 542 static void corgi_poweroff(void)
 543 {
 544         if (!machine_is_corgi())
 545                 /* Green LED off tells the bootloader to halt */
 546                 gpio_set_value(CORGI_GPIO_LED_GREEN, 0);
 547
 548         arm_machine_restart('h', NULL);
 549 }
 550
 551 static void corgi_restart(char mode, const char *cmd)
 552 {
 553         if (!machine_is_corgi())
 554                 /* Green LED on tells the bootloader to reboot */
 555                 gpio_set_value(CORGI_GPIO_LED_GREEN, 1);
 556
 557         arm_machine_restart('h', cmd);
 558 }
 559
 560 static void __init corgi_init(void)
 561 {
 562         pm_power_off = corgi_poweroff;
 563         arm_pm_restart = corgi_restart;
 564
 565         /* Stop 3.6MHz and drive HIGH to PCMCIA and CS */
 566         PCFR |= PCFR_OPDE;
 567
 568         pxa2xx_mfp_config(ARRAY_AND_SIZE(corgi_pin_config));
 569
 570         corgi_init_spi();
 571
 572         pxa_set_udc_info(&udc_info);
 573         corgi_mci_platform_data.detect_delay = msecs_to_jiffies(250);
 574         pxa_set_mci_info(&corgi_mci_platform_data);
 575         pxa_set_ficp_info(&corgi_ficp_platform_data);
 576         pxa_set_i2c_info(NULL);
 577         i2c_register_board_info(0, ARRAY_AND_SIZE(corgi_i2c_devices));
 578
 579         platform_scoop_config = &corgi_pcmcia_config;
 580
 581         if (machine_is_husky())
 582                 sharpsl_nand_partitions[1].size = 53 * 1024 * 1024;
 583
 584         platform_add_devices(devices, ARRAY_SIZE(devices));
 585 }
 586
 587 static void __init fixup_corgi(struct machine_desc *desc,
 588                 struct tag *tags, char **cmdline, struct meminfo *mi)
 589 {
 590         sharpsl_save_param();
 591         mi->nr_banks=1;
 592         mi->bank[0].start = 0xa0000000;
 593         mi->bank[0].node = 0;
 594         if (machine_is_corgi())
 595                 mi->bank[0].size = (32*1024*1024);
 596         else
 597                 mi->bank[0].size = (64*1024*1024);
 598 }
 599
 600 #ifdef CONFIG_MACH_CORGI
 601 MACHINE_START(CORGI, "SHARP Corgi")
 602         .phys_io        = 0x40000000,
 603         .io_pg_offst    = (io_p2v(0x40000000) >> 18) & 0xfffc,
 604         .fixup          = fixup_corgi,
 605         .map_io         = pxa_map_io,
 606         .init_irq       = pxa25x_init_irq,
 607         .init_machine   = corgi_init,
 608         .timer          = &pxa_timer,
 609 MACHINE_END
 610 #endif
 611
 612 #ifdef CONFIG_MACH_SHEPHERD
 613 MACHINE_START(SHEPHERD, "SHARP Shepherd")
 614         .phys_io        = 0x40000000,
 615         .io_pg_offst    = (io_p2v(0x40000000) >> 18) & 0xfffc,
 616         .fixup          = fixup_corgi,
 617         .map_io         = pxa_map_io,
 618         .init_irq       = pxa25x_init_irq,
 619         .init_machine   = corgi_init,
 620         .timer          = &pxa_timer,
 621 MACHINE_END
 622 #endif
 623
 624 #ifdef CONFIG_MACH_HUSKY
 625 MACHINE_START(HUSKY, "SHARP Husky")
 626         .phys_io        = 0x40000000,
 627         .io_pg_offst    = (io_p2v(0x40000000) >> 18) & 0xfffc,
 628         .fixup          = fixup_corgi,
 629         .map_io         = pxa_map_io,
 630         .init_irq       = pxa25x_init_irq,
 631         .init_machine   = corgi_init,
 632         .timer          = &pxa_timer,
 633 MACHINE_END
 634 #endif
 635