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/pxa27x.h>
  43 #include <mach/pxa2xx_spi.h>
  44 #include <mach/trizeps4.h>
  45 #include <mach/audio.h>
  46 #include <mach/pxafb.h>
  47 #include <mach/mmc.h>
  48 #include <mach/irda.h>
  49 #include <mach/ohci.h>
  50 #include <plat/i2c.h>
  51
  52 #include "generic.h"
  53 #include "devices.h"
  54
  55 /*      comment out the following line if you want to use the
  56  *      Standard UART from PXA for serial / irda transmission
  57  *      and acivate it if you have status leds connected */
  58 #define STATUS_LEDS_ON_STUART_PINS 1
  59
  60 /*****************************************************************************
  61  * MultiFunctionPins of CPU
  62  *****************************************************************************/
  63 static unsigned long trizeps4_pin_config[] __initdata = {
  64         /* Chip Selects */
  65         GPIO15_nCS_1,           /* DiskOnChip CS */
  66         GPIO93_GPIO,            /* TRIZEPS4_DOC_IRQ */
  67         GPIO94_GPIO,            /* DOC lock */
  68
  69         GPIO78_nCS_2,           /* DM9000 CS */
  70         GPIO101_GPIO,           /* TRIZEPS4_ETH_IRQ */
  71
  72         GPIO79_nCS_3,           /* Logic CS */
  73         GPIO0_GPIO | WAKEUP_ON_EDGE_RISE,       /* Logic irq */
  74
  75         /* LCD - 16bpp Active TFT */
  76         GPIOxx_LCD_TFT_16BPP,
  77
  78         /* UART */
  79         GPIO9_FFUART_CTS,
  80         GPIO10_FFUART_DCD,
  81         GPIO16_FFUART_TXD,
  82         GPIO33_FFUART_DSR,
  83         GPIO38_FFUART_RI,
  84         GPIO82_FFUART_DTR,
  85         GPIO83_FFUART_RTS,
  86         GPIO96_FFUART_RXD,
  87
  88         GPIO42_BTUART_RXD,
  89         GPIO43_BTUART_TXD,
  90         GPIO44_BTUART_CTS,
  91         GPIO45_BTUART_RTS,
  92 #ifdef STATUS_LEDS_ON_STUART_PINS
  93         GPIO46_GPIO,
  94         GPIO47_GPIO,
  95 #else
  96         GPIO46_STUART_RXD,
  97         GPIO47_STUART_TXD,
  98 #endif
  99         /* PCMCIA */
 100         GPIO11_GPIO,                    /* TRIZEPS4_CD_IRQ */
 101         GPIO13_GPIO,                    /* TRIZEPS4_READY_NINT */
 102         GPIO48_nPOE,
 103         GPIO49_nPWE,
 104         GPIO50_nPIOR,
 105         GPIO51_nPIOW,
 106         GPIO54_nPCE_2,
 107         GPIO55_nPREG,
 108         GPIO56_nPWAIT,
 109         GPIO57_nIOIS16,
 110         GPIO102_nPCE_1,
 111         GPIO104_PSKTSEL,
 112
 113         /* MultiMediaCard */
 114         GPIO32_MMC_CLK,
 115         GPIO92_MMC_DAT_0,
 116         GPIO109_MMC_DAT_1,
 117         GPIO110_MMC_DAT_2,
 118         GPIO111_MMC_DAT_3,
 119         GPIO112_MMC_CMD,
 120         GPIO12_GPIO,                    /* TRIZEPS4_MMC_IRQ */
 121
 122         /* USB OHCI */
 123         GPIO88_USBH1_PWR,               /* USBHPWR1 */
 124         GPIO89_USBH1_PEN,               /* USBHPEN1 */
 125
 126         /* I2C */
 127         GPIO117_I2C_SCL,
 128         GPIO118_I2C_SDA,
 129 };
 130
 131 static unsigned long trizeps4wl_pin_config[] __initdata = {
 132         /* SSP 2 */
 133         GPIO14_SSP2_SFRM,
 134         GPIO19_SSP2_SCLK,
 135         GPIO53_GPIO,                    /* TRIZEPS4_SPI_IRQ */
 136         GPIO86_SSP2_RXD,
 137         GPIO87_SSP2_TXD,
 138 };
 139
 140 /****************************************************************************
 141  * ONBOARD FLASH
 142  ****************************************************************************/
 143 static struct mtd_partition trizeps4_partitions[] = {
 144         {
 145                 .name =         "Bootloader",
 146                 .offset =       0x00000000,
 147                 .size =         0x00040000,
 148                 .mask_flags =   MTD_WRITEABLE  /* force read-only */
 149         }, {
 150                 .name =         "Backup",
 151                 .offset =       0x00040000,
 152                 .size =         0x00040000,
 153         }, {
 154                 .name =         "Image",
 155                 .offset =       0x00080000,
 156                 .size =         0x01080000,
 157         }, {
 158                 .name =         "IPSM",
 159                 .offset =       0x01100000,
 160                 .size =         0x00e00000,
 161         }, {
 162                 .name =         "Registry",
 163                 .offset =       0x01f00000,
 164                 .size =         MTDPART_SIZ_FULL,
 165         }
 166 };
 167
 168 static struct physmap_flash_data trizeps4_flash_data[] = {
 169         {
 170                 .width          = 4,                    /* bankwidth in bytes */
 171                 .parts          = trizeps4_partitions,
 172                 .nr_parts       = ARRAY_SIZE(trizeps4_partitions)
 173         }
 174 };
 175
 176 static struct resource flash_resource = {
 177         .start  = PXA_CS0_PHYS,
 178         .end    = PXA_CS0_PHYS + SZ_32M - 1,
 179         .flags  = IORESOURCE_MEM,
 180 };
 181
 182 static struct platform_device flash_device = {
 183         .name           = "physmap-flash",
 184         .id             = 0,
 185         .dev = {
 186                 .platform_data = trizeps4_flash_data,
 187         },
 188         .resource = &flash_resource,
 189         .num_resources = 1,
 190 };
 191
 192 /****************************************************************************
 193  * DAVICOM DM9000 Ethernet
 194  ****************************************************************************/
 195 static struct resource dm9000_resources[] = {
 196         [0] = {
 197                 .start  = TRIZEPS4_ETH_PHYS+0x300,
 198                 .end    = TRIZEPS4_ETH_PHYS+0x400-1,
 199                 .flags  = IORESOURCE_MEM,
 200         },
 201         [1] = {
 202                 .start  = TRIZEPS4_ETH_PHYS+0x8300,
 203                 .end    = TRIZEPS4_ETH_PHYS+0x8400-1,
 204                 .flags  = IORESOURCE_MEM,
 205         },
 206         [2] = {
 207                 .start  = TRIZEPS4_ETH_IRQ,
 208                 .end    = TRIZEPS4_ETH_IRQ,
 209                 .flags  = IORESOURCE_IRQ | IORESOURCE_IRQ_HIGHEDGE,
 210         },
 211 };
 212
 213 static struct dm9000_plat_data tri_dm9000_platdata = {
 214         .flags          = DM9000_PLATF_32BITONLY,
 215 };
 216
 217 static struct platform_device dm9000_device = {
 218         .name           = "dm9000",
 219         .id             = -1,
 220         .num_resources  = ARRAY_SIZE(dm9000_resources),
 221         .resource       = dm9000_resources,
 222         .dev            = {
 223                 .platform_data = &tri_dm9000_platdata,
 224         }
 225 };
 226
 227 /****************************************************************************
 228  * LED's on GPIO pins of PXA
 229  ****************************************************************************/
 230 static struct gpio_led trizeps4_led[] = {
 231 #ifdef STATUS_LEDS_ON_STUART_PINS
 232         {
 233                 .name = "led0:orange:heartbeat",        /* */
 234                 .default_trigger = "heartbeat",
 235                 .gpio = GPIO_HEARTBEAT_LED,
 236                 .active_low = 1,
 237         },
 238         {
 239                 .name = "led1:yellow:cpubusy",          /* */
 240                 .default_trigger = "cpu-busy",
 241                 .gpio = GPIO_SYS_BUSY_LED,
 242                 .active_low = 1,
 243         },
 244 #endif
 245 };
 246
 247 static struct gpio_led_platform_data trizeps4_led_data = {
 248         .leds           = trizeps4_led,
 249         .num_leds       = ARRAY_SIZE(trizeps4_led),
 250 };
 251
 252 static struct platform_device leds_devices = {
 253         .name           = "leds-gpio",
 254         .id             = -1,
 255         .dev            = {
 256                 .platform_data  = &trizeps4_led_data,
 257         },
 258 };
 259
 260 static struct platform_device *trizeps4_devices[] __initdata = {
 261         &flash_device,
 262         &dm9000_device,
 263         &leds_devices,
 264 };
 265
 266 static struct platform_device *trizeps4wl_devices[] __initdata = {
 267         &flash_device,
 268         &leds_devices,
 269 };
 270
 271 static short trizeps_conxs_bcr;
 272
 273 /* PCCARD power switching supports only 3,3V */
 274 void board_pcmcia_power(int power)
 275 {
 276         if (power) {
 277                 /* switch power on, put in reset and enable buffers */
 278                 trizeps_conxs_bcr |= power;
 279                 trizeps_conxs_bcr |= ConXS_BCR_CF_RESET;
 280                 trizeps_conxs_bcr &= ~ConXS_BCR_CF_BUF_EN;
 281                 BCR_writew(trizeps_conxs_bcr);
 282                 /* wait a little */
 283                 udelay(2000);
 284                 /* take reset away */
 285                 trizeps_conxs_bcr &= ~ConXS_BCR_CF_RESET;
 286                 BCR_writew(trizeps_conxs_bcr);
 287                 udelay(2000);
 288         } else {
 289                 /* put in reset */
 290                 trizeps_conxs_bcr |= ConXS_BCR_CF_RESET;
 291                 BCR_writew(trizeps_conxs_bcr);
 292                 udelay(1000);
 293                 /* switch power off */
 294                 trizeps_conxs_bcr &= ~0xf;
 295                 BCR_writew(trizeps_conxs_bcr);
 296         }
 297         pr_debug("%s: o%s 0x%x\n", __func__, power ? "n" : "ff",
 298                         trizeps_conxs_bcr);
 299 }
 300 EXPORT_SYMBOL(board_pcmcia_power);
 301
 302 /* backlight power switching for LCD panel */
 303 static void board_backlight_power(int on)
 304 {
 305         if (on)
 306                 trizeps_conxs_bcr |= ConXS_BCR_L_DISP;
 307         else
 308                 trizeps_conxs_bcr &= ~ConXS_BCR_L_DISP;
 309
 310         pr_debug("%s: o%s 0x%x\n", __func__, on ? "n" : "ff",
 311                         trizeps_conxs_bcr);
 312         BCR_writew(trizeps_conxs_bcr);
 313 }
 314
 315 /* a I2C based RTC is known on CONXS board */
 316 static struct i2c_board_info trizeps4_i2c_devices[] __initdata = {
 317         { I2C_BOARD_INFO("rtc-pcf8593", 0x51) }
 318 };
 319
 320 /****************************************************************************
 321  * MMC card slot external to module
 322  ****************************************************************************/
 323 static int trizeps4_mci_init(struct device *dev, irq_handler_t mci_detect_int,
 324                 void *data)
 325 {
 326         int err;
 327
 328         err = request_irq(TRIZEPS4_MMC_IRQ, mci_detect_int,
 329                 IRQF_DISABLED | IRQF_TRIGGER_RISING | IRQF_SAMPLE_RANDOM,
 330                 "MMC card detect", data);
 331         if (err) {
 332                 printk(KERN_ERR "trizeps4_mci_init: MMC/SD: can't request"
 333                                                 "MMC card detect IRQ\n");
 334                 return -1;
 335         }
 336         return 0;
 337 }
 338
 339 static void trizeps4_mci_exit(struct device *dev, void *data)
 340 {
 341         free_irq(TRIZEPS4_MMC_IRQ, data);
 342 }
 343
 344 static struct pxamci_platform_data trizeps4_mci_platform_data = {
 345         .ocr_mask       = MMC_VDD_32_33|MMC_VDD_33_34,
 346         .detect_delay   = 1,
 347         .init           = trizeps4_mci_init,
 348         .exit           = trizeps4_mci_exit,
 349         .get_ro         = NULL, /* write-protection not supported */
 350         .setpower       = NULL, /* power-switching not supported */
 351         .gpio_card_detect = -1,
 352         .gpio_card_ro   = -1,
 353         .gpio_power     = -1,
 354 };
 355
 356 /****************************************************************************
 357  * IRDA mode switching on stuart
 358  ****************************************************************************/
 359 #ifndef STATUS_LEDS_ON_STUART_PINS
 360 static short trizeps_conxs_ircr;
 361
 362 static int trizeps4_irda_startup(struct device *dev)
 363 {
 364         trizeps_conxs_ircr &= ~ConXS_IRCR_SD;
 365         IRCR_writew(trizeps_conxs_ircr);
 366         return 0;
 367 }
 368
 369 static void trizeps4_irda_shutdown(struct device *dev)
 370 {
 371         trizeps_conxs_ircr |= ConXS_IRCR_SD;
 372         IRCR_writew(trizeps_conxs_ircr);
 373 }
 374
 375 static void trizeps4_irda_transceiver_mode(struct device *dev, int mode)
 376 {
 377         unsigned long flags;
 378
 379         local_irq_save(flags);
 380         /* Switch mode */
 381         if (mode & IR_SIRMODE)
 382                 trizeps_conxs_ircr &= ~ConXS_IRCR_MODE; /* Slow mode */
 383         else if (mode & IR_FIRMODE)
 384                 trizeps_conxs_ircr |= ConXS_IRCR_MODE;  /* Fast mode */
 385
 386         /* Switch power */
 387         if (mode & IR_OFF)
 388                 trizeps_conxs_ircr |= ConXS_IRCR_SD;
 389         else
 390                 trizeps_conxs_ircr &= ~ConXS_IRCR_SD;
 391
 392         IRCR_writew(trizeps_conxs_ircr);
 393         local_irq_restore(flags);
 394
 395         pxa2xx_transceiver_mode(dev, mode);
 396 }
 397
 398 static struct pxaficp_platform_data trizeps4_ficp_platform_data = {
 399         .gpio_pwdown            = -1,
 400         .transceiver_cap        = IR_SIRMODE | IR_FIRMODE | IR_OFF,
 401         .transceiver_mode       = trizeps4_irda_transceiver_mode,
 402         .startup                = trizeps4_irda_startup,
 403         .shutdown               = trizeps4_irda_shutdown,
 404 };
 405 #endif
 406
 407 /****************************************************************************
 408  * OHCI USB port
 409  ****************************************************************************/
 410 static struct pxaohci_platform_data trizeps4_ohci_platform_data = {
 411         .port_mode      = PMM_PERPORT_MODE,
 412         .flags          = ENABLE_PORT_ALL | POWER_CONTROL_LOW | POWER_SENSE_LOW,
 413 };
 414
 415 static struct map_desc trizeps4_io_desc[] __initdata = {
 416         {       /* ConXS CFSR */
 417                 .virtual        = TRIZEPS4_CFSR_VIRT,
 418                 .pfn            = __phys_to_pfn(TRIZEPS4_CFSR_PHYS),
 419                 .length         = 0x00001000,
 420                 .type           = MT_DEVICE
 421         },
 422         {       /* ConXS BCR */
 423                 .virtual        = TRIZEPS4_BOCR_VIRT,
 424                 .pfn            = __phys_to_pfn(TRIZEPS4_BOCR_PHYS),
 425                 .length         = 0x00001000,
 426                 .type           = MT_DEVICE
 427         },
 428         {       /* ConXS IRCR */
 429                 .virtual        = TRIZEPS4_IRCR_VIRT,
 430                 .pfn            = __phys_to_pfn(TRIZEPS4_IRCR_PHYS),
 431                 .length         = 0x00001000,
 432                 .type           = MT_DEVICE
 433         },
 434         {       /* ConXS DCR */
 435                 .virtual        = TRIZEPS4_DICR_VIRT,
 436                 .pfn            = __phys_to_pfn(TRIZEPS4_DICR_PHYS),
 437                 .length         = 0x00001000,
 438                 .type           = MT_DEVICE
 439         },
 440         {       /* ConXS UPSR */
 441                 .virtual        = TRIZEPS4_UPSR_VIRT,
 442                 .pfn            = __phys_to_pfn(TRIZEPS4_UPSR_PHYS),
 443                 .length         = 0x00001000,
 444                 .type           = MT_DEVICE
 445         }
 446 };
 447
 448 static struct pxafb_mode_info sharp_lcd_mode = {
 449         .pixclock       = 78000,
 450         .xres           = 640,
 451         .yres           = 480,
 452         .bpp            = 8,
 453         .hsync_len      = 4,
 454         .left_margin    = 4,
 455         .right_margin   = 4,
 456         .vsync_len      = 2,
 457         .upper_margin   = 0,
 458         .lower_margin   = 0,
 459         .sync           = FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT,
 460         .cmap_greyscale = 0,
 461 };
 462
 463 static struct pxafb_mach_info sharp_lcd = {
 464         .modes          = &sharp_lcd_mode,
 465         .num_modes      = 1,
 466         .lcd_conn       = LCD_COLOR_DSTN_16BPP | LCD_PCLK_EDGE_FALL,
 467         .cmap_inverse   = 0,
 468         .cmap_static    = 0,
 469         .pxafb_backlight_power = board_backlight_power,
 470 };
 471
 472 static struct pxafb_mode_info toshiba_lcd_mode = {
 473         .pixclock       = 39720,
 474         .xres           = 640,
 475         .yres           = 480,
 476         .bpp            = 8,
 477         .hsync_len      = 63,
 478         .left_margin    = 12,
 479         .right_margin   = 12,
 480         .vsync_len      = 4,
 481         .upper_margin   = 32,
 482         .lower_margin   = 10,
 483         .sync           = 0,
 484         .cmap_greyscale = 0,
 485 };
 486
 487 static struct pxafb_mach_info toshiba_lcd = {
 488         .modes          = &toshiba_lcd_mode,
 489         .num_modes      = 1,
 490         .lcd_conn       = (LCD_COLOR_TFT_16BPP | LCD_PCLK_EDGE_FALL),
 491         .cmap_inverse   = 0,
 492         .cmap_static    = 0,
 493         .pxafb_backlight_power = board_backlight_power,
 494 };
 495
 496 static void __init trizeps4_init(void)
 497 {
 498         pxa2xx_mfp_config(ARRAY_AND_SIZE(trizeps4_pin_config));
 499         if (machine_is_trizeps4wl()) {
 500                 pxa2xx_mfp_config(ARRAY_AND_SIZE(trizeps4wl_pin_config));
 501                 platform_add_devices(trizeps4wl_devices,
 502                                         ARRAY_SIZE(trizeps4wl_devices));
 503         } else {
 504                 platform_add_devices(trizeps4_devices,
 505                                         ARRAY_SIZE(trizeps4_devices));
 506         }
 507
 508         pxa_set_ffuart_info(NULL);
 509         pxa_set_btuart_info(NULL);
 510         pxa_set_stuart_info(NULL);
 511
 512         if (0)  /* dont know how to determine LCD */
 513                 set_pxa_fb_info(&sharp_lcd);
 514         else
 515                 set_pxa_fb_info(&toshiba_lcd);
 516
 517         pxa_set_mci_info(&trizeps4_mci_platform_data);
 518 #ifndef STATUS_LEDS_ON_STUART_PINS
 519         pxa_set_ficp_info(&trizeps4_ficp_platform_data);
 520 #endif
 521         pxa_set_ohci_info(&trizeps4_ohci_platform_data);
 522         pxa_set_ac97_info(NULL);
 523         pxa_set_i2c_info(NULL);
 524         i2c_register_board_info(0, trizeps4_i2c_devices,
 525                                         ARRAY_SIZE(trizeps4_i2c_devices));
 526
 527 #ifdef CONFIG_IDE_PXA_CF
 528         /* if boot direct from compact flash dont disable power */
 529         trizeps_conxs_bcr = 0x0009;
 530 #else
 531         /* this is the reset value */
 532         trizeps_conxs_bcr = 0x00A0;
 533 #endif
 534         BCR_writew(trizeps_conxs_bcr);
 535         board_backlight_power(1);
 536 }
 537
 538 static void __init trizeps4_map_io(void)
 539 {
 540         pxa_map_io();
 541         iotable_init(trizeps4_io_desc, ARRAY_SIZE(trizeps4_io_desc));
 542
 543         if ((MSC0 & 0x8) && (BOOT_DEF & 0x1)) {
 544                 /* if flash is 16 bit wide its a Trizeps4 WL */
 545                 __machine_arch_type = MACH_TYPE_TRIZEPS4WL;
 546                 trizeps4_flash_data[0].width = 2;
 547         } else {
 548                 /* if flash is 32 bit wide its a Trizeps4 */
 549                 __machine_arch_type = MACH_TYPE_TRIZEPS4;
 550                 trizeps4_flash_data[0].width = 4;
 551         }
 552 }
 553
 554 MACHINE_START(TRIZEPS4, "Keith und Koep Trizeps IV module")
 555         /* MAINTAINER("Jürgen Schindele") */
 556         .phys_io        = 0x40000000,
 557         .io_pg_offst    = (io_p2v(0x40000000) >> 18) & 0xfffc,
 558         .boot_params    = TRIZEPS4_SDRAM_BASE + 0x100,
 559         .init_machine   = trizeps4_init,
 560         .map_io         = trizeps4_map_io,
 561         .init_irq       = pxa27x_init_irq,
 562         .timer          = &pxa_timer,
 563 MACHINE_END
 564
 565 MACHINE_START(TRIZEPS4WL, "Keith und Koep Trizeps IV-WL module")
 566         /* MAINTAINER("Jürgen Schindele") */
 567         .phys_io        = 0x40000000,
 568         .io_pg_offst    = (io_p2v(0x40000000) >> 18) & 0xfffc,
 569         .boot_params    = TRIZEPS4_SDRAM_BASE + 0x100,
 570         .init_machine   = trizeps4_init,
 571         .map_io         = trizeps4_map_io,
 572         .init_irq       = pxa27x_init_irq,
 573         .timer          = &pxa_timer,
 574 MACHINE_END