arch/arm/mach-pxa/trizeps4.c

   1 /*
   2  *  linux/arch/arm/mach-pxa/trizeps4.c
   3  *
   4  *  Support for the Keith und Koep Trizeps4 Module Platform.
   5  *
   6  *  Author:     Jürgen Schindele
   7  *  Created:    20 02, 2006
   8  *  Copyright:  Jürgen Schindele
   9  *
  10  *  This program is free software; you can redistribute it and/or modify
  11  *  it under the terms of the GNU General Public License version 2 as
  12  *  published by the Free Software Foundation.
  13  */
  14
  15 #include <linux/init.h>
  16 #include <linux/kernel.h>
  17 #include <linux/platform_device.h>
  18 #include <linux/sysdev.h>
  19 #include <linux/interrupt.h>
  20 #include <linux/sched.h>
  21 #include <linux/bitops.h>
  22 #include <linux/fb.h>
  23 #include <linux/ioport.h>
  24 #include <linux/delay.h>
  25 #include <linux/gpio.h>
  26 #include <linux/dm9000.h>
  27 #include <linux/mtd/physmap.h>
  28 #include <linux/mtd/partitions.h>
  29
  30 #include <asm/types.h>
  31 #include <asm/setup.h>
  32 #include <asm/memory.h>
  33 #include <asm/mach-types.h>
  34 #include <asm/irq.h>
  35 #include <asm/sizes.h>
  36
  37 #include <asm/mach/arch.h>
  38 #include <asm/mach/map.h>
  39 #include <asm/mach/irq.h>
  40 #include <asm/mach/flash.h>
  41
  42 #include <mach/hardware.h>
  43 #include <mach/pxa-regs.h>
  44 #include <mach/pxa2xx-regs.h>
  45 #include <mach/mfp-pxa27x.h>
  46 #include <mach/pxa2xx_spi.h>
  47 #include <mach/trizeps4.h>
  48 #include <mach/audio.h>
  49 #include <mach/pxafb.h>
  50 #include <mach/mmc.h>
  51 #include <mach/irda.h>
  52 #include <mach/ohci.h>
  53 #include <mach/i2c.h>
  54
  55 #include "generic.h"
  56 #include "devices.h"
  57
  58 /*      comment out the following line if you want to use the
  59  *      Standard UART from PXA for serial / irda transmission
  60  *      and acivate it if you have status leds connected */
  61 #define STATUS_LEDS_ON_STUART_PINS 1
  62
  63 /*****************************************************************************
  64  * MultiFunctionPins of CPU
  65  *****************************************************************************/
  66 static unsigned long trizeps4_pin_config[] __initdata = {
  67         /* Chip Selects */
  68         GPIO15_nCS_1,           /* DiskOnChip CS */
  69         GPIO93_GPIO,            /* TRIZEPS4_DOC_IRQ */
  70         GPIO94_GPIO,            /* DOC lock */
  71
  72         GPIO78_nCS_2,           /* DM9000 CS */
  73         GPIO101_GPIO,           /* TRIZEPS4_ETH_IRQ */
  74
  75         GPIO79_nCS_3,           /* Logic CS */
  76         GPIO0_GPIO | WAKEUP_ON_EDGE_RISE,       /* Logic irq */
  77
  78         /* LCD - 16bpp Active TFT */
  79         GPIO58_LCD_LDD_0,
  80         GPIO59_LCD_LDD_1,
  81         GPIO60_LCD_LDD_2,
  82         GPIO61_LCD_LDD_3,
  83         GPIO62_LCD_LDD_4,
  84         GPIO63_LCD_LDD_5,
  85         GPIO64_LCD_LDD_6,
  86         GPIO65_LCD_LDD_7,
  87         GPIO66_LCD_LDD_8,
  88         GPIO67_LCD_LDD_9,
  89         GPIO68_LCD_LDD_10,
  90         GPIO69_LCD_LDD_11,
  91         GPIO70_LCD_LDD_12,
  92         GPIO71_LCD_LDD_13,
  93         GPIO72_LCD_LDD_14,
  94         GPIO73_LCD_LDD_15,
  95         GPIO74_LCD_FCLK,
  96         GPIO75_LCD_LCLK,
  97         GPIO76_LCD_PCLK,
  98         GPIO77_LCD_BIAS,
  99
 100         /* UART */
 101         GPIO9_FFUART_CTS,
 102         GPIO10_FFUART_DCD,
 103         GPIO16_FFUART_TXD,
 104         GPIO33_FFUART_DSR,
 105         GPIO38_FFUART_RI,
 106         GPIO82_FFUART_DTR,
 107         GPIO83_FFUART_RTS,
 108         GPIO96_FFUART_RXD,
 109
 110         GPIO42_BTUART_RXD,
 111         GPIO43_BTUART_TXD,
 112         GPIO44_BTUART_CTS,
 113         GPIO45_BTUART_RTS,
 114 #ifdef STATUS_LEDS_ON_STUART_PINS
 115         GPIO46_GPIO,
 116         GPIO47_GPIO,
 117 #else
 118         GPIO46_STUART_RXD,
 119         GPIO47_STUART_TXD,
 120 #endif
 121         /* PCMCIA */
 122         GPIO11_GPIO,                    /* TRIZEPS4_CD_IRQ */
 123         GPIO13_GPIO,                    /* TRIZEPS4_READY_NINT */
 124         GPIO48_nPOE,
 125         GPIO49_nPWE,
 126         GPIO50_nPIOR,
 127         GPIO51_nPIOW,
 128         GPIO54_nPCE_2,
 129         GPIO55_nPREG,
 130         GPIO56_nPWAIT,
 131         GPIO57_nIOIS16,
 132         GPIO102_nPCE_1,
 133         GPIO104_PSKTSEL,
 134
 135         /* MultiMediaCard */
 136         GPIO32_MMC_CLK,
 137         GPIO92_MMC_DAT_0,
 138         GPIO109_MMC_DAT_1,
 139         GPIO110_MMC_DAT_2,
 140         GPIO111_MMC_DAT_3,
 141         GPIO112_MMC_CMD,
 142         GPIO12_GPIO,                    /* TRIZEPS4_MMC_IRQ */
 143
 144         /* USB OHCI */
 145         GPIO88_USBH1_PWR,               /* USBHPWR1 */
 146         GPIO89_USBH1_PEN,               /* USBHPEN1 */
 147
 148         /* I2C */
 149         GPIO117_I2C_SCL,
 150         GPIO118_I2C_SDA,
 151 };
 152
 153 static unsigned long trizeps4wl_pin_config[] __initdata = {
 154         /* SSP 2 */
 155         GPIO14_SSP2_SFRM,
 156         GPIO19_SSP2_SCLK,
 157         GPIO53_GPIO,                    /* TRIZEPS4_SPI_IRQ */
 158         GPIO86_SSP2_RXD,
 159         GPIO87_SSP2_TXD,
 160 };
 161
 162 /****************************************************************************
 163  * ONBOARD FLASH
 164  ****************************************************************************/
 165 static struct mtd_partition trizeps4_partitions[] = {
 166         {
 167                 .name =         "Bootloader",
 168                 .offset =       0x00000000,
 169                 .size =         0x00040000,
 170                 .mask_flags =   MTD_WRITEABLE  /* force read-only */
 171         }, {
 172                 .name =         "Backup",
 173                 .offset =       0x00040000,
 174                 .size =         0x00040000,
 175         }, {
 176                 .name =         "Image",
 177                 .offset =       0x00080000,
 178                 .size =         0x01080000,
 179         }, {
 180                 .name =         "IPSM",
 181                 .offset =       0x01100000,
 182                 .size =         0x00e00000,
 183         }, {
 184                 .name =         "Registry",
 185                 .offset =       0x01f00000,
 186                 .size =         MTDPART_SIZ_FULL,
 187         }
 188 };
 189
 190 static struct physmap_flash_data trizeps4_flash_data[] = {
 191         {
 192                 .width          = 4,                    /* bankwidth in bytes */
 193                 .parts          = trizeps4_partitions,
 194                 .nr_parts       = ARRAY_SIZE(trizeps4_partitions)
 195         }
 196 };
 197
 198 static struct resource flash_resource = {
 199         .start  = PXA_CS0_PHYS,
 200         .end    = PXA_CS0_PHYS + SZ_32M - 1,
 201         .flags  = IORESOURCE_MEM,
 202 };
 203
 204 static struct platform_device flash_device = {
 205         .name           = "physmap-flash",
 206         .id             = 0,
 207         .dev = {
 208                 .platform_data = trizeps4_flash_data,
 209         },
 210         .resource = &flash_resource,
 211         .num_resources = 1,
 212 };
 213
 214 /****************************************************************************
 215  * DAVICOM DM9000 Ethernet
 216  ****************************************************************************/
 217 static struct resource dm9000_resources[] = {
 218         [0] = {
 219                 .start  = TRIZEPS4_ETH_PHYS+0x300,
 220                 .end    = TRIZEPS4_ETH_PHYS+0x400-1,
 221                 .flags  = IORESOURCE_MEM,
 222         },
 223         [1] = {
 224                 .start  = TRIZEPS4_ETH_PHYS+0x8300,
 225                 .end    = TRIZEPS4_ETH_PHYS+0x8400-1,
 226                 .flags  = IORESOURCE_MEM,
 227         },
 228         [2] = {
 229                 .start  = TRIZEPS4_ETH_IRQ,
 230                 .end    = TRIZEPS4_ETH_IRQ,
 231                 .flags  = IORESOURCE_IRQ | IORESOURCE_IRQ_HIGHEDGE,
 232         },
 233 };
 234
 235 static struct dm9000_plat_data tri_dm9000_platdata = {
 236         .flags          = DM9000_PLATF_32BITONLY,
 237 };
 238
 239 static struct platform_device dm9000_device = {
 240         .name           = "dm9000",
 241         .id             = -1,
 242         .num_resources  = ARRAY_SIZE(dm9000_resources),
 243         .resource       = dm9000_resources,
 244         .dev            = {
 245                 .platform_data = &tri_dm9000_platdata,
 246         }
 247 };
 248
 249 /****************************************************************************
 250  * LED's on GPIO pins of PXA
 251  ****************************************************************************/
 252 static struct gpio_led trizeps4_led[] = {
 253 #ifdef STATUS_LEDS_ON_STUART_PINS
 254         {
 255                 .name = "led0:orange:heartbeat",        /* */
 256                 .default_trigger = "heartbeat",
 257                 .gpio = GPIO_HEARTBEAT_LED,
 258                 .active_low = 1,
 259         },
 260         {
 261                 .name = "led1:yellow:cpubusy",          /* */
 262                 .default_trigger = "cpu-busy",
 263                 .gpio = GPIO_SYS_BUSY_LED,
 264                 .active_low = 1,
 265         },
 266 #endif
 267 };
 268
 269 static struct gpio_led_platform_data trizeps4_led_data = {
 270         .leds           = trizeps4_led,
 271         .num_leds       = ARRAY_SIZE(trizeps4_led),
 272 };
 273
 274 static struct platform_device leds_devices = {
 275         .name           = "leds-gpio",
 276         .id             = -1,
 277         .dev            = {
 278                 .platform_data  = &trizeps4_led_data,
 279         },
 280 };
 281
 282 static struct platform_device *trizeps4_devices[] __initdata = {
 283         &flash_device,
 284         &dm9000_device,
 285         &leds_devices,
 286 };
 287
 288 static struct platform_device *trizeps4wl_devices[] __initdata = {
 289         &flash_device,
 290         &leds_devices,
 291 };
 292
 293 static short trizeps_conxs_bcr;
 294
 295 /* PCCARD power switching supports only 3,3V */
 296 void board_pcmcia_power(int power)
 297 {
 298         if (power) {
 299                 /* switch power on, put in reset and enable buffers */
 300                 trizeps_conxs_bcr |= power;
 301                 trizeps_conxs_bcr |= ConXS_BCR_CF_RESET;
 302                 trizeps_conxs_bcr &= ~ConXS_BCR_CF_BUF_EN;
 303                 BCR_writew(trizeps_conxs_bcr);
 304                 /* wait a little */
 305                 udelay(2000);
 306                 /* take reset away */
 307                 trizeps_conxs_bcr &= ~ConXS_BCR_CF_RESET;
 308                 BCR_writew(trizeps_conxs_bcr);
 309                 udelay(2000);
 310         } else {
 311                 /* put in reset */
 312                 trizeps_conxs_bcr |= ConXS_BCR_CF_RESET;
 313                 BCR_writew(trizeps_conxs_bcr);
 314                 udelay(1000);
 315                 /* switch power off */
 316                 trizeps_conxs_bcr &= ~0xf;
 317                 BCR_writew(trizeps_conxs_bcr);
 318         }
 319         pr_debug("%s: o%s 0x%x\n", __func__, power ? "n" : "ff",
 320                         trizeps_conxs_bcr);
 321 }
 322 EXPORT_SYMBOL(board_pcmcia_power);
 323
 324 /* backlight power switching for LCD panel */
 325 static void board_backlight_power(int on)
 326 {
 327         if (on)
 328                 trizeps_conxs_bcr |= ConXS_BCR_L_DISP;
 329         else
 330                 trizeps_conxs_bcr &= ~ConXS_BCR_L_DISP;
 331
 332         pr_debug("%s: o%s 0x%x\n", __func__, on ? "n" : "ff",
 333                         trizeps_conxs_bcr);
 334         BCR_writew(trizeps_conxs_bcr);
 335 }
 336
 337 /* a I2C based RTC is known on CONXS board */
 338 static struct i2c_board_info trizeps4_i2c_devices[] __initdata = {
 339         { I2C_BOARD_INFO("rtc-pcf8593", 0x51) }
 340 };
 341
 342 /****************************************************************************
 343  * MMC card slot external to module
 344  ****************************************************************************/
 345 static int trizeps4_mci_init(struct device *dev, irq_handler_t mci_detect_int,
 346                 void *data)
 347 {
 348         int err;
 349
 350         err = request_irq(TRIZEPS4_MMC_IRQ, mci_detect_int,
 351                 IRQF_DISABLED | IRQF_TRIGGER_RISING | IRQF_SAMPLE_RANDOM,
 352                 "MMC card detect", data);
 353         if (err) {
 354                 printk(KERN_ERR "trizeps4_mci_init: MMC/SD: can't request"
 355                                                 "MMC card detect IRQ\n");
 356                 return -1;
 357         }
 358         return 0;
 359 }
 360
 361 static void trizeps4_mci_exit(struct device *dev, void *data)
 362 {
 363         free_irq(TRIZEPS4_MMC_IRQ, data);
 364 }
 365
 366 static struct pxamci_platform_data trizeps4_mci_platform_data = {
 367         .ocr_mask       = MMC_VDD_32_33|MMC_VDD_33_34,
 368         .detect_delay   = 1,
 369         .init           = trizeps4_mci_init,
 370         .exit           = trizeps4_mci_exit,
 371         .get_ro         = NULL, /* write-protection not supported */
 372         .setpower       = NULL, /* power-switching not supported */
 373 };
 374
 375 /****************************************************************************
 376  * IRDA mode switching on stuart
 377  ****************************************************************************/
 378 #ifndef STATUS_LEDS_ON_STUART_PINS
 379 static short trizeps_conxs_ircr;
 380
 381 static int trizeps4_irda_startup(struct device *dev)
 382 {
 383         trizeps_conxs_ircr &= ~ConXS_IRCR_SD;
 384         IRCR_writew(trizeps_conxs_ircr);
 385         return 0;
 386 }
 387
 388 static void trizeps4_irda_shutdown(struct device *dev)
 389 {
 390         trizeps_conxs_ircr |= ConXS_IRCR_SD;
 391         IRCR_writew(trizeps_conxs_ircr);
 392 }
 393
 394 static void trizeps4_irda_transceiver_mode(struct device *dev, int mode)
 395 {
 396         unsigned long flags;
 397
 398         local_irq_save(flags);
 399         /* Switch mode */
 400         if (mode & IR_SIRMODE)
 401                 trizeps_conxs_ircr &= ~ConXS_IRCR_MODE; /* Slow mode */
 402         else if (mode & IR_FIRMODE)
 403                 trizeps_conxs_ircr |= ConXS_IRCR_MODE;  /* Fast mode */
 404
 405         /* Switch power */
 406         if (mode & IR_OFF)
 407                 trizeps_conxs_ircr |= ConXS_IRCR_SD;
 408         else
 409                 trizeps_conxs_ircr &= ~ConXS_IRCR_SD;
 410
 411         IRCR_writew(trizeps_conxs_ircr);
 412         local_irq_restore(flags);
 413
 414         pxa2xx_transceiver_mode(dev, mode);
 415 }
 416
 417 static struct pxaficp_platform_data trizeps4_ficp_platform_data = {
 418         .transceiver_cap        = IR_SIRMODE | IR_FIRMODE | IR_OFF,
 419         .transceiver_mode       = trizeps4_irda_transceiver_mode,
 420         .startup                = trizeps4_irda_startup,
 421         .shutdown               = trizeps4_irda_shutdown,
 422 };
 423 #endif
 424
 425 /****************************************************************************
 426  * OHCI USB port
 427  ****************************************************************************/
 428 static struct pxaohci_platform_data trizeps4_ohci_platform_data = {
 429         .port_mode      = PMM_PERPORT_MODE,
 430         .flags          = ENABLE_PORT_ALL | POWER_CONTROL_LOW | POWER_SENSE_LOW,
 431 };
 432
 433 static struct map_desc trizeps4_io_desc[] __initdata = {
 434         {       /* ConXS CFSR */
 435                 .virtual        = TRIZEPS4_CFSR_VIRT,
 436                 .pfn            = __phys_to_pfn(TRIZEPS4_CFSR_PHYS),
 437                 .length         = 0x00001000,
 438                 .type           = MT_DEVICE
 439         },
 440         {       /* ConXS BCR */
 441                 .virtual        = TRIZEPS4_BOCR_VIRT,
 442                 .pfn            = __phys_to_pfn(TRIZEPS4_BOCR_PHYS),
 443                 .length         = 0x00001000,
 444                 .type           = MT_DEVICE
 445         },
 446         {       /* ConXS IRCR */
 447                 .virtual        = TRIZEPS4_IRCR_VIRT,
 448                 .pfn            = __phys_to_pfn(TRIZEPS4_IRCR_PHYS),
 449                 .length         = 0x00001000,
 450                 .type           = MT_DEVICE
 451         },
 452         {       /* ConXS DCR */
 453                 .virtual        = TRIZEPS4_DICR_VIRT,
 454                 .pfn            = __phys_to_pfn(TRIZEPS4_DICR_PHYS),
 455                 .length         = 0x00001000,
 456                 .type           = MT_DEVICE
 457         },
 458         {       /* ConXS UPSR */
 459                 .virtual        = TRIZEPS4_UPSR_VIRT,
 460                 .pfn            = __phys_to_pfn(TRIZEPS4_UPSR_PHYS),
 461                 .length         = 0x00001000,
 462                 .type           = MT_DEVICE
 463         }
 464 };
 465
 466 static struct pxafb_mode_info sharp_lcd_mode = {
 467         .pixclock       = 78000,
 468         .xres           = 640,
 469         .yres           = 480,
 470         .bpp            = 8,
 471         .hsync_len      = 4,
 472         .left_margin    = 4,
 473         .right_margin   = 4,
 474         .vsync_len      = 2,
 475         .upper_margin   = 0,
 476         .lower_margin   = 0,
 477         .sync           = FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT,
 478         .cmap_greyscale = 0,
 479 };
 480
 481 static struct pxafb_mach_info sharp_lcd = {
 482         .modes          = &sharp_lcd_mode,
 483         .num_modes      = 1,
 484         .lcd_conn       = LCD_COLOR_DSTN_16BPP | LCD_PCLK_EDGE_FALL,
 485         .cmap_inverse   = 0,
 486         .cmap_static    = 0,
 487         .pxafb_backlight_power = board_backlight_power,
 488 };
 489
 490 static struct pxafb_mode_info toshiba_lcd_mode = {
 491         .pixclock       = 39720,
 492         .xres           = 640,
 493         .yres           = 480,
 494         .bpp            = 8,
 495         .hsync_len      = 63,
 496         .left_margin    = 12,
 497         .right_margin   = 12,
 498         .vsync_len      = 4,
 499         .upper_margin   = 32,
 500         .lower_margin   = 10,
 501         .sync           = 0,
 502         .cmap_greyscale = 0,
 503 };
 504
 505 static struct pxafb_mach_info toshiba_lcd = {
 506         .modes          = &toshiba_lcd_mode,
 507         .num_modes      = 1,
 508         .lcd_conn       = (LCD_COLOR_TFT_16BPP | LCD_PCLK_EDGE_FALL),
 509         .cmap_inverse   = 0,
 510         .cmap_static    = 0,
 511         .pxafb_backlight_power = board_backlight_power,
 512 };
 513
 514 static void __init trizeps4_init(void)
 515 {
 516         pxa2xx_mfp_config(ARRAY_AND_SIZE(trizeps4_pin_config));
 517         if (machine_is_trizeps4wl()) {
 518                 pxa2xx_mfp_config(ARRAY_AND_SIZE(trizeps4wl_pin_config));
 519                 platform_add_devices(trizeps4wl_devices,
 520                                         ARRAY_SIZE(trizeps4wl_devices));
 521         } else {
 522                 platform_add_devices(trizeps4_devices,
 523                                         ARRAY_SIZE(trizeps4_devices));
 524         }
 525
 526         if (0)  /* dont know how to determine LCD */
 527                 set_pxa_fb_info(&sharp_lcd);
 528         else
 529                 set_pxa_fb_info(&toshiba_lcd);
 530
 531         pxa_set_mci_info(&trizeps4_mci_platform_data);
 532 #ifndef STATUS_LEDS_ON_STUART_PINS
 533         pxa_set_ficp_info(&trizeps4_ficp_platform_data);
 534 #endif
 535         pxa_set_ohci_info(&trizeps4_ohci_platform_data);
 536         pxa_set_ac97_info(NULL);
 537         pxa_set_i2c_info(NULL);
 538         i2c_register_board_info(0, trizeps4_i2c_devices,
 539                                         ARRAY_SIZE(trizeps4_i2c_devices));
 540
 541 #ifdef CONFIG_IDE_PXA_CF
 542         /* if boot direct from compact flash dont disable power */
 543         trizeps_conxs_bcr = 0x0009;
 544 #else
 545         /* this is the reset value */
 546         trizeps_conxs_bcr = 0x00A0;
 547 #endif
 548         BCR_writew(trizeps_conxs_bcr);
 549         board_backlight_power(1);
 550 }
 551
 552 static void __init trizeps4_map_io(void)
 553 {
 554         pxa_map_io();
 555         iotable_init(trizeps4_io_desc, ARRAY_SIZE(trizeps4_io_desc));
 556
 557         if ((MSC0 & 0x8) && (BOOT_DEF & 0x1)) {
 558                 /* if flash is 16 bit wide its a Trizeps4 WL */
 559                 __machine_arch_type = MACH_TYPE_TRIZEPS4WL;
 560                 trizeps4_flash_data[0].width = 2;
 561         } else {
 562                 /* if flash is 32 bit wide its a Trizeps4 */
 563                 __machine_arch_type = MACH_TYPE_TRIZEPS4;
 564                 trizeps4_flash_data[0].width = 4;
 565         }
 566 }
 567
 568 MACHINE_START(TRIZEPS4, "Keith und Koep Trizeps IV module")
 569         /* MAINTAINER("Jürgen Schindele") */
 570         .phys_io        = 0x40000000,
 571         .io_pg_offst    = (io_p2v(0x40000000) >> 18) & 0xfffc,
 572         .boot_params    = TRIZEPS4_SDRAM_BASE + 0x100,
 573         .init_machine   = trizeps4_init,
 574         .map_io         = trizeps4_map_io,
 575         .init_irq       = pxa27x_init_irq,
 576         .timer          = &pxa_timer,
 577 MACHINE_END
 578
 579 MACHINE_START(TRIZEPS4WL, "Keith und Koep Trizeps IV-WL module")
 580         /* MAINTAINER("Jürgen Schindele") */
 581         .phys_io        = 0x40000000,
 582         .io_pg_offst    = (io_p2v(0x40000000) >> 18) & 0xfffc,
 583         .boot_params    = TRIZEPS4_SDRAM_BASE + 0x100,
 584         .init_machine   = trizeps4_init,
 585         .map_io         = trizeps4_map_io,
 586         .init_irq       = pxa27x_init_irq,
 587         .timer          = &pxa_timer,
 588 MACHINE_END