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         GPIO58_LCD_LDD_0,
  77         GPIO59_LCD_LDD_1,
  78         GPIO60_LCD_LDD_2,
  79         GPIO61_LCD_LDD_3,
  80         GPIO62_LCD_LDD_4,
  81         GPIO63_LCD_LDD_5,
  82         GPIO64_LCD_LDD_6,
  83         GPIO65_LCD_LDD_7,
  84         GPIO66_LCD_LDD_8,
  85         GPIO67_LCD_LDD_9,
  86         GPIO68_LCD_LDD_10,
  87         GPIO69_LCD_LDD_11,
  88         GPIO70_LCD_LDD_12,
  89         GPIO71_LCD_LDD_13,
  90         GPIO72_LCD_LDD_14,
  91         GPIO73_LCD_LDD_15,
  92         GPIO74_LCD_FCLK,
  93         GPIO75_LCD_LCLK,
  94         GPIO76_LCD_PCLK,
  95         GPIO77_LCD_BIAS,
  96
  97         /* UART */
  98         GPIO9_FFUART_CTS,
  99         GPIO10_FFUART_DCD,
 100         GPIO16_FFUART_TXD,
 101         GPIO33_FFUART_DSR,
 102         GPIO38_FFUART_RI,
 103         GPIO82_FFUART_DTR,
 104         GPIO83_FFUART_RTS,
 105         GPIO96_FFUART_RXD,
 106
 107         GPIO42_BTUART_RXD,
 108         GPIO43_BTUART_TXD,
 109         GPIO44_BTUART_CTS,
 110         GPIO45_BTUART_RTS,
 111 #ifdef STATUS_LEDS_ON_STUART_PINS
 112         GPIO46_GPIO,
 113         GPIO47_GPIO,
 114 #else
 115         GPIO46_STUART_RXD,
 116         GPIO47_STUART_TXD,
 117 #endif
 118         /* PCMCIA */
 119         GPIO11_GPIO,                    /* TRIZEPS4_CD_IRQ */
 120         GPIO13_GPIO,                    /* TRIZEPS4_READY_NINT */
 121         GPIO48_nPOE,
 122         GPIO49_nPWE,
 123         GPIO50_nPIOR,
 124         GPIO51_nPIOW,
 125         GPIO54_nPCE_2,
 126         GPIO55_nPREG,
 127         GPIO56_nPWAIT,
 128         GPIO57_nIOIS16,
 129         GPIO102_nPCE_1,
 130         GPIO104_PSKTSEL,
 131
 132         /* MultiMediaCard */
 133         GPIO32_MMC_CLK,
 134         GPIO92_MMC_DAT_0,
 135         GPIO109_MMC_DAT_1,
 136         GPIO110_MMC_DAT_2,
 137         GPIO111_MMC_DAT_3,
 138         GPIO112_MMC_CMD,
 139         GPIO12_GPIO,                    /* TRIZEPS4_MMC_IRQ */
 140
 141         /* USB OHCI */
 142         GPIO88_USBH1_PWR,               /* USBHPWR1 */
 143         GPIO89_USBH1_PEN,               /* USBHPEN1 */
 144
 145         /* I2C */
 146         GPIO117_I2C_SCL,
 147         GPIO118_I2C_SDA,
 148 };
 149
 150 static unsigned long trizeps4wl_pin_config[] __initdata = {
 151         /* SSP 2 */
 152         GPIO14_SSP2_SFRM,
 153         GPIO19_SSP2_SCLK,
 154         GPIO53_GPIO,                    /* TRIZEPS4_SPI_IRQ */
 155         GPIO86_SSP2_RXD,
 156         GPIO87_SSP2_TXD,
 157 };
 158
 159 /****************************************************************************
 160  * ONBOARD FLASH
 161  ****************************************************************************/
 162 static struct mtd_partition trizeps4_partitions[] = {
 163         {
 164                 .name =         "Bootloader",
 165                 .offset =       0x00000000,
 166                 .size =         0x00040000,
 167                 .mask_flags =   MTD_WRITEABLE  /* force read-only */
 168         }, {
 169                 .name =         "Backup",
 170                 .offset =       0x00040000,
 171                 .size =         0x00040000,
 172         }, {
 173                 .name =         "Image",
 174                 .offset =       0x00080000,
 175                 .size =         0x01080000,
 176         }, {
 177                 .name =         "IPSM",
 178                 .offset =       0x01100000,
 179                 .size =         0x00e00000,
 180         }, {
 181                 .name =         "Registry",
 182                 .offset =       0x01f00000,
 183                 .size =         MTDPART_SIZ_FULL,
 184         }
 185 };
 186
 187 static struct physmap_flash_data trizeps4_flash_data[] = {
 188         {
 189                 .width          = 4,                    /* bankwidth in bytes */
 190                 .parts          = trizeps4_partitions,
 191                 .nr_parts       = ARRAY_SIZE(trizeps4_partitions)
 192         }
 193 };
 194
 195 static struct resource flash_resource = {
 196         .start  = PXA_CS0_PHYS,
 197         .end    = PXA_CS0_PHYS + SZ_32M - 1,
 198         .flags  = IORESOURCE_MEM,
 199 };
 200
 201 static struct platform_device flash_device = {
 202         .name           = "physmap-flash",
 203         .id             = 0,
 204         .dev = {
 205                 .platform_data = trizeps4_flash_data,
 206         },
 207         .resource = &flash_resource,
 208         .num_resources = 1,
 209 };
 210
 211 /****************************************************************************
 212  * DAVICOM DM9000 Ethernet
 213  ****************************************************************************/
 214 static struct resource dm9000_resources[] = {
 215         [0] = {
 216                 .start  = TRIZEPS4_ETH_PHYS+0x300,
 217                 .end    = TRIZEPS4_ETH_PHYS+0x400-1,
 218                 .flags  = IORESOURCE_MEM,
 219         },
 220         [1] = {
 221                 .start  = TRIZEPS4_ETH_PHYS+0x8300,
 222                 .end    = TRIZEPS4_ETH_PHYS+0x8400-1,
 223                 .flags  = IORESOURCE_MEM,
 224         },
 225         [2] = {
 226                 .start  = TRIZEPS4_ETH_IRQ,
 227                 .end    = TRIZEPS4_ETH_IRQ,
 228                 .flags  = IORESOURCE_IRQ | IORESOURCE_IRQ_HIGHEDGE,
 229         },
 230 };
 231
 232 static struct dm9000_plat_data tri_dm9000_platdata = {
 233         .flags          = DM9000_PLATF_32BITONLY,
 234 };
 235
 236 static struct platform_device dm9000_device = {
 237         .name           = "dm9000",
 238         .id             = -1,
 239         .num_resources  = ARRAY_SIZE(dm9000_resources),
 240         .resource       = dm9000_resources,
 241         .dev            = {
 242                 .platform_data = &tri_dm9000_platdata,
 243         }
 244 };
 245
 246 /****************************************************************************
 247  * LED's on GPIO pins of PXA
 248  ****************************************************************************/
 249 static struct gpio_led trizeps4_led[] = {
 250 #ifdef STATUS_LEDS_ON_STUART_PINS
 251         {
 252                 .name = "led0:orange:heartbeat",        /* */
 253                 .default_trigger = "heartbeat",
 254                 .gpio = GPIO_HEARTBEAT_LED,
 255                 .active_low = 1,
 256         },
 257         {
 258                 .name = "led1:yellow:cpubusy",          /* */
 259                 .default_trigger = "cpu-busy",
 260                 .gpio = GPIO_SYS_BUSY_LED,
 261                 .active_low = 1,
 262         },
 263 #endif
 264 };
 265
 266 static struct gpio_led_platform_data trizeps4_led_data = {
 267         .leds           = trizeps4_led,
 268         .num_leds       = ARRAY_SIZE(trizeps4_led),
 269 };
 270
 271 static struct platform_device leds_devices = {
 272         .name           = "leds-gpio",
 273         .id             = -1,
 274         .dev            = {
 275                 .platform_data  = &trizeps4_led_data,
 276         },
 277 };
 278
 279 static struct platform_device *trizeps4_devices[] __initdata = {
 280         &flash_device,
 281         &dm9000_device,
 282         &leds_devices,
 283 };
 284
 285 static struct platform_device *trizeps4wl_devices[] __initdata = {
 286         &flash_device,
 287         &leds_devices,
 288 };
 289
 290 static short trizeps_conxs_bcr;
 291
 292 /* PCCARD power switching supports only 3,3V */
 293 void board_pcmcia_power(int power)
 294 {
 295         if (power) {
 296                 /* switch power on, put in reset and enable buffers */
 297                 trizeps_conxs_bcr |= power;
 298                 trizeps_conxs_bcr |= ConXS_BCR_CF_RESET;
 299                 trizeps_conxs_bcr &= ~ConXS_BCR_CF_BUF_EN;
 300                 BCR_writew(trizeps_conxs_bcr);
 301                 /* wait a little */
 302                 udelay(2000);
 303                 /* take reset away */
 304                 trizeps_conxs_bcr &= ~ConXS_BCR_CF_RESET;
 305                 BCR_writew(trizeps_conxs_bcr);
 306                 udelay(2000);
 307         } else {
 308                 /* put in reset */
 309                 trizeps_conxs_bcr |= ConXS_BCR_CF_RESET;
 310                 BCR_writew(trizeps_conxs_bcr);
 311                 udelay(1000);
 312                 /* switch power off */
 313                 trizeps_conxs_bcr &= ~0xf;
 314                 BCR_writew(trizeps_conxs_bcr);
 315         }
 316         pr_debug("%s: o%s 0x%x\n", __func__, power ? "n" : "ff",
 317                         trizeps_conxs_bcr);
 318 }
 319 EXPORT_SYMBOL(board_pcmcia_power);
 320
 321 /* backlight power switching for LCD panel */
 322 static void board_backlight_power(int on)
 323 {
 324         if (on)
 325                 trizeps_conxs_bcr |= ConXS_BCR_L_DISP;
 326         else
 327                 trizeps_conxs_bcr &= ~ConXS_BCR_L_DISP;
 328
 329         pr_debug("%s: o%s 0x%x\n", __func__, on ? "n" : "ff",
 330                         trizeps_conxs_bcr);
 331         BCR_writew(trizeps_conxs_bcr);
 332 }
 333
 334 /* a I2C based RTC is known on CONXS board */
 335 static struct i2c_board_info trizeps4_i2c_devices[] __initdata = {
 336         { I2C_BOARD_INFO("rtc-pcf8593", 0x51) }
 337 };
 338
 339 /****************************************************************************
 340  * MMC card slot external to module
 341  ****************************************************************************/
 342 static int trizeps4_mci_init(struct device *dev, irq_handler_t mci_detect_int,
 343                 void *data)
 344 {
 345         int err;
 346
 347         err = request_irq(TRIZEPS4_MMC_IRQ, mci_detect_int,
 348                 IRQF_DISABLED | IRQF_TRIGGER_RISING | IRQF_SAMPLE_RANDOM,
 349                 "MMC card detect", data);
 350         if (err) {
 351                 printk(KERN_ERR "trizeps4_mci_init: MMC/SD: can't request"
 352                                                 "MMC card detect IRQ\n");
 353                 return -1;
 354         }
 355         return 0;
 356 }
 357
 358 static void trizeps4_mci_exit(struct device *dev, void *data)
 359 {
 360         free_irq(TRIZEPS4_MMC_IRQ, data);
 361 }
 362
 363 static struct pxamci_platform_data trizeps4_mci_platform_data = {
 364         .ocr_mask       = MMC_VDD_32_33|MMC_VDD_33_34,
 365         .detect_delay   = 1,
 366         .init           = trizeps4_mci_init,
 367         .exit           = trizeps4_mci_exit,
 368         .get_ro         = NULL, /* write-protection not supported */
 369         .setpower       = NULL, /* power-switching not supported */
 370         .gpio_card_detect = -1,
 371         .gpio_card_ro   = -1,
 372         .gpio_power     = -1,
 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         .gpio_pwdown            = -1,
 419         .transceiver_cap        = IR_SIRMODE | IR_FIRMODE | IR_OFF,
 420         .transceiver_mode       = trizeps4_irda_transceiver_mode,
 421         .startup                = trizeps4_irda_startup,
 422         .shutdown               = trizeps4_irda_shutdown,
 423 };
 424 #endif
 425
 426 /****************************************************************************
 427  * OHCI USB port
 428  ****************************************************************************/
 429 static struct pxaohci_platform_data trizeps4_ohci_platform_data = {
 430         .port_mode      = PMM_PERPORT_MODE,
 431         .flags          = ENABLE_PORT_ALL | POWER_CONTROL_LOW | POWER_SENSE_LOW,
 432 };
 433
 434 static struct map_desc trizeps4_io_desc[] __initdata = {
 435         {       /* ConXS CFSR */
 436                 .virtual        = TRIZEPS4_CFSR_VIRT,
 437                 .pfn            = __phys_to_pfn(TRIZEPS4_CFSR_PHYS),
 438                 .length         = 0x00001000,
 439                 .type           = MT_DEVICE
 440         },
 441         {       /* ConXS BCR */
 442                 .virtual        = TRIZEPS4_BOCR_VIRT,
 443                 .pfn            = __phys_to_pfn(TRIZEPS4_BOCR_PHYS),
 444                 .length         = 0x00001000,
 445                 .type           = MT_DEVICE
 446         },
 447         {       /* ConXS IRCR */
 448                 .virtual        = TRIZEPS4_IRCR_VIRT,
 449                 .pfn            = __phys_to_pfn(TRIZEPS4_IRCR_PHYS),
 450                 .length         = 0x00001000,
 451                 .type           = MT_DEVICE
 452         },
 453         {       /* ConXS DCR */
 454                 .virtual        = TRIZEPS4_DICR_VIRT,
 455                 .pfn            = __phys_to_pfn(TRIZEPS4_DICR_PHYS),
 456                 .length         = 0x00001000,
 457                 .type           = MT_DEVICE
 458         },
 459         {       /* ConXS UPSR */
 460                 .virtual        = TRIZEPS4_UPSR_VIRT,
 461                 .pfn            = __phys_to_pfn(TRIZEPS4_UPSR_PHYS),
 462                 .length         = 0x00001000,
 463                 .type           = MT_DEVICE
 464         }
 465 };
 466
 467 static struct pxafb_mode_info sharp_lcd_mode = {
 468         .pixclock       = 78000,
 469         .xres           = 640,
 470         .yres           = 480,
 471         .bpp            = 8,
 472         .hsync_len      = 4,
 473         .left_margin    = 4,
 474         .right_margin   = 4,
 475         .vsync_len      = 2,
 476         .upper_margin   = 0,
 477         .lower_margin   = 0,
 478         .sync           = FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT,
 479         .cmap_greyscale = 0,
 480 };
 481
 482 static struct pxafb_mach_info sharp_lcd = {
 483         .modes          = &sharp_lcd_mode,
 484         .num_modes      = 1,
 485         .lcd_conn       = LCD_COLOR_DSTN_16BPP | LCD_PCLK_EDGE_FALL,
 486         .cmap_inverse   = 0,
 487         .cmap_static    = 0,
 488         .pxafb_backlight_power = board_backlight_power,
 489 };
 490
 491 static struct pxafb_mode_info toshiba_lcd_mode = {
 492         .pixclock       = 39720,
 493         .xres           = 640,
 494         .yres           = 480,
 495         .bpp            = 8,
 496         .hsync_len      = 63,
 497         .left_margin    = 12,
 498         .right_margin   = 12,
 499         .vsync_len      = 4,
 500         .upper_margin   = 32,
 501         .lower_margin   = 10,
 502         .sync           = 0,
 503         .cmap_greyscale = 0,
 504 };
 505
 506 static struct pxafb_mach_info toshiba_lcd = {
 507         .modes          = &toshiba_lcd_mode,
 508         .num_modes      = 1,
 509         .lcd_conn       = (LCD_COLOR_TFT_16BPP | LCD_PCLK_EDGE_FALL),
 510         .cmap_inverse   = 0,
 511         .cmap_static    = 0,
 512         .pxafb_backlight_power = board_backlight_power,
 513 };
 514
 515 static void __init trizeps4_init(void)
 516 {
 517         pxa2xx_mfp_config(ARRAY_AND_SIZE(trizeps4_pin_config));
 518         if (machine_is_trizeps4wl()) {
 519                 pxa2xx_mfp_config(ARRAY_AND_SIZE(trizeps4wl_pin_config));
 520                 platform_add_devices(trizeps4wl_devices,
 521                                         ARRAY_SIZE(trizeps4wl_devices));
 522         } else {
 523                 platform_add_devices(trizeps4_devices,
 524                                         ARRAY_SIZE(trizeps4_devices));
 525         }
 526
 527         if (0)  /* dont know how to determine LCD */
 528                 set_pxa_fb_info(&sharp_lcd);
 529         else
 530                 set_pxa_fb_info(&toshiba_lcd);
 531
 532         pxa_set_mci_info(&trizeps4_mci_platform_data);
 533 #ifndef STATUS_LEDS_ON_STUART_PINS
 534         pxa_set_ficp_info(&trizeps4_ficp_platform_data);
 535 #endif
 536         pxa_set_ohci_info(&trizeps4_ohci_platform_data);
 537         pxa_set_ac97_info(NULL);
 538         pxa_set_i2c_info(NULL);
 539         i2c_register_board_info(0, trizeps4_i2c_devices,
 540                                         ARRAY_SIZE(trizeps4_i2c_devices));
 541
 542 #ifdef CONFIG_IDE_PXA_CF
 543         /* if boot direct from compact flash dont disable power */
 544         trizeps_conxs_bcr = 0x0009;
 545 #else
 546         /* this is the reset value */
 547         trizeps_conxs_bcr = 0x00A0;
 548 #endif
 549         BCR_writew(trizeps_conxs_bcr);
 550         board_backlight_power(1);
 551 }
 552
 553 static void __init trizeps4_map_io(void)
 554 {
 555         pxa_map_io();
 556         iotable_init(trizeps4_io_desc, ARRAY_SIZE(trizeps4_io_desc));
 557
 558         if ((MSC0 & 0x8) && (BOOT_DEF & 0x1)) {
 559                 /* if flash is 16 bit wide its a Trizeps4 WL */
 560                 __machine_arch_type = MACH_TYPE_TRIZEPS4WL;
 561                 trizeps4_flash_data[0].width = 2;
 562         } else {
 563                 /* if flash is 32 bit wide its a Trizeps4 */
 564                 __machine_arch_type = MACH_TYPE_TRIZEPS4;
 565                 trizeps4_flash_data[0].width = 4;
 566         }
 567 }
 568
 569 MACHINE_START(TRIZEPS4, "Keith und Koep Trizeps IV module")
 570         /* MAINTAINER("Jürgen Schindele") */
 571         .phys_io        = 0x40000000,
 572         .io_pg_offst    = (io_p2v(0x40000000) >> 18) & 0xfffc,
 573         .boot_params    = TRIZEPS4_SDRAM_BASE + 0x100,
 574         .init_machine   = trizeps4_init,
 575         .map_io         = trizeps4_map_io,
 576         .init_irq       = pxa27x_init_irq,
 577         .timer          = &pxa_timer,
 578 MACHINE_END
 579
 580 MACHINE_START(TRIZEPS4WL, "Keith und Koep Trizeps IV-WL module")
 581         /* MAINTAINER("Jürgen Schindele") */
 582         .phys_io        = 0x40000000,
 583         .io_pg_offst    = (io_p2v(0x40000000) >> 18) & 0xfffc,
 584         .boot_params    = TRIZEPS4_SDRAM_BASE + 0x100,
 585         .init_machine   = trizeps4_init,
 586         .map_io         = trizeps4_map_io,
 587         .init_irq       = pxa27x_init_irq,
 588         .timer          = &pxa_timer,
 589 MACHINE_END