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/interrupt.h>
  19 #include <linux/export.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 #include <linux/regulator/machine.h>
  30 #include <linux/i2c/pxa-i2c.h>
  31
  32 #include <asm/types.h>
  33 #include <asm/setup.h>
  34 #include <asm/memory.h>
  35 #include <asm/mach-types.h>
  36 #include <asm/irq.h>
  37 #include <asm/sizes.h>
  38
  39 #include <asm/mach/arch.h>
  40 #include <asm/mach/map.h>
  41 #include <asm/mach/irq.h>
  42 #include <asm/mach/flash.h>
  43
  44 #include <mach/pxa27x.h>
  45 #include <mach/trizeps4.h>
  46 #include <mach/audio.h>
  47 #include <linux/platform_data/video-pxafb.h>
  48 #include <linux/platform_data/mmc-pxamci.h>
  49 #include <linux/platform_data/irda-pxaficp.h>
  50 #include <linux/platform_data/usb-ohci-pxa27x.h>
  51 #include <mach/smemc.h>
  52
  53 #include "generic.h"
  54 #include "devices.h"
  55
  56 /*      comment out the following line if you want to use the
  57  *      Standard UART from PXA for serial / irda transmission
  58  *      and acivate it if you have status leds connected */
  59 #define STATUS_LEDS_ON_STUART_PINS 1
  60
  61 /*****************************************************************************
  62  * MultiFunctionPins of CPU
  63  *****************************************************************************/
  64 static unsigned long trizeps4_pin_config[] __initdata = {
  65         /* Chip Selects */
  66         GPIO15_nCS_1,           /* DiskOnChip CS */
  67         GPIO93_GPIO,            /* TRIZEPS4_DOC_IRQ */
  68         GPIO94_GPIO,            /* DOC lock */
  69
  70         GPIO78_nCS_2,           /* DM9000 CS */
  71         GPIO101_GPIO,           /* TRIZEPS4_ETH_IRQ */
  72
  73         GPIO79_nCS_3,           /* Logic CS */
  74         GPIO0_GPIO | WAKEUP_ON_EDGE_RISE,       /* Logic irq */
  75
  76         /* AC97 */
  77         GPIO28_AC97_BITCLK,
  78         GPIO29_AC97_SDATA_IN_0,
  79         GPIO30_AC97_SDATA_OUT,
  80         GPIO31_AC97_SYNC,
  81
  82         /* LCD - 16bpp Active TFT */
  83         GPIOxx_LCD_TFT_16BPP,
  84
  85         /* UART */
  86         GPIO9_FFUART_CTS,
  87         GPIO10_FFUART_DCD,
  88         GPIO16_FFUART_TXD,
  89         GPIO33_FFUART_DSR,
  90         GPIO38_FFUART_RI,
  91         GPIO82_FFUART_DTR,
  92         GPIO83_FFUART_RTS,
  93         GPIO96_FFUART_RXD,
  94
  95         GPIO42_BTUART_RXD,
  96         GPIO43_BTUART_TXD,
  97         GPIO44_BTUART_CTS,
  98         GPIO45_BTUART_RTS,
  99 #ifdef STATUS_LEDS_ON_STUART_PINS
 100         GPIO46_GPIO,
 101         GPIO47_GPIO,
 102 #else
 103         GPIO46_STUART_RXD,
 104         GPIO47_STUART_TXD,
 105 #endif
 106         /* PCMCIA */
 107         GPIO11_GPIO,                    /* TRIZEPS4_CD_IRQ */
 108         GPIO13_GPIO,                    /* TRIZEPS4_READY_NINT */
 109         GPIO48_nPOE,
 110         GPIO49_nPWE,
 111         GPIO50_nPIOR,
 112         GPIO51_nPIOW,
 113         GPIO54_nPCE_2,
 114         GPIO55_nPREG,
 115         GPIO56_nPWAIT,
 116         GPIO57_nIOIS16,
 117         GPIO102_nPCE_1,
 118         GPIO104_PSKTSEL,
 119
 120         /* MultiMediaCard */
 121         GPIO32_MMC_CLK,
 122         GPIO92_MMC_DAT_0,
 123         GPIO109_MMC_DAT_1,
 124         GPIO110_MMC_DAT_2,
 125         GPIO111_MMC_DAT_3,
 126         GPIO112_MMC_CMD,
 127         GPIO12_GPIO,                    /* TRIZEPS4_MMC_IRQ */
 128
 129         /* USB OHCI */
 130         GPIO88_USBH1_PWR,               /* USBHPWR1 */
 131         GPIO89_USBH1_PEN,               /* USBHPEN1 */
 132
 133         /* I2C */
 134         GPIO117_I2C_SCL,
 135         GPIO118_I2C_SDA,
 136 };
 137
 138 static unsigned long trizeps4wl_pin_config[] __initdata = {
 139         /* SSP 2 */
 140         GPIO14_SSP2_SFRM,
 141         GPIO19_SSP2_SCLK,
 142         GPIO53_GPIO,                    /* TRIZEPS4_SPI_IRQ */
 143         GPIO86_SSP2_RXD,
 144         GPIO87_SSP2_TXD,
 145 };
 146
 147 /****************************************************************************
 148  * ONBOARD FLASH
 149  ****************************************************************************/
 150 static struct mtd_partition trizeps4_partitions[] = {
 151         {
 152                 .name =         "Bootloader",
 153                 .offset =       0x00000000,
 154                 .size =         0x00040000,
 155                 .mask_flags =   MTD_WRITEABLE  /* force read-only */
 156         }, {
 157                 .name =         "Backup",
 158                 .offset =       0x00040000,
 159                 .size =         0x00040000,
 160         }, {
 161                 .name =         "Image",
 162                 .offset =       0x00080000,
 163                 .size =         0x01080000,
 164         }, {
 165                 .name =         "IPSM",
 166                 .offset =       0x01100000,
 167                 .size =         0x00e00000,
 168         }, {
 169                 .name =         "Registry",
 170                 .offset =       0x01f00000,
 171                 .size =         MTDPART_SIZ_FULL,
 172         }
 173 };
 174
 175 static struct physmap_flash_data trizeps4_flash_data[] = {
 176         {
 177                 .width          = 4,                    /* bankwidth in bytes */
 178                 .parts          = trizeps4_partitions,
 179                 .nr_parts       = ARRAY_SIZE(trizeps4_partitions)
 180         }
 181 };
 182
 183 static struct resource flash_resource = {
 184         .start  = PXA_CS0_PHYS,
 185         .end    = PXA_CS0_PHYS + SZ_32M - 1,
 186         .flags  = IORESOURCE_MEM,
 187 };
 188
 189 static struct platform_device flash_device = {
 190         .name           = "physmap-flash",
 191         .id             = 0,
 192         .dev = {
 193                 .platform_data = trizeps4_flash_data,
 194         },
 195         .resource = &flash_resource,
 196         .num_resources = 1,
 197 };
 198
 199 /****************************************************************************
 200  * DAVICOM DM9000 Ethernet
 201  ****************************************************************************/
 202 static struct resource dm9000_resources[] = {
 203         [0] = {
 204                 .start  = TRIZEPS4_ETH_PHYS+0x300,
 205                 .end    = TRIZEPS4_ETH_PHYS+0x400-1,
 206                 .flags  = IORESOURCE_MEM,
 207         },
 208         [1] = {
 209                 .start  = TRIZEPS4_ETH_PHYS+0x8300,
 210                 .end    = TRIZEPS4_ETH_PHYS+0x8400-1,
 211                 .flags  = IORESOURCE_MEM,
 212         },
 213         [2] = {
 214                 .start  = TRIZEPS4_ETH_IRQ,
 215                 .end    = TRIZEPS4_ETH_IRQ,
 216                 .flags  = IORESOURCE_IRQ | IORESOURCE_IRQ_HIGHEDGE,
 217         },
 218 };
 219
 220 static struct dm9000_plat_data tri_dm9000_platdata = {
 221         .flags          = DM9000_PLATF_32BITONLY,
 222 };
 223
 224 static struct platform_device dm9000_device = {
 225         .name           = "dm9000",
 226         .id             = -1,
 227         .num_resources  = ARRAY_SIZE(dm9000_resources),
 228         .resource       = dm9000_resources,
 229         .dev            = {
 230                 .platform_data = &tri_dm9000_platdata,
 231         }
 232 };
 233
 234 /****************************************************************************
 235  * LED's on GPIO pins of PXA
 236  ****************************************************************************/
 237 static struct gpio_led trizeps4_led[] = {
 238 #ifdef STATUS_LEDS_ON_STUART_PINS
 239         {
 240                 .name = "led0:orange:heartbeat",        /* */
 241                 .default_trigger = "heartbeat",
 242                 .gpio = GPIO_HEARTBEAT_LED,
 243                 .active_low = 1,
 244         },
 245         {
 246                 .name = "led1:yellow:cpubusy",          /* */
 247                 .default_trigger = "cpu-busy",
 248                 .gpio = GPIO_SYS_BUSY_LED,
 249                 .active_low = 1,
 250         },
 251 #endif
 252 };
 253
 254 static struct gpio_led_platform_data trizeps4_led_data = {
 255         .leds           = trizeps4_led,
 256         .num_leds       = ARRAY_SIZE(trizeps4_led),
 257 };
 258
 259 static struct platform_device leds_devices = {
 260         .name           = "leds-gpio",
 261         .id             = -1,
 262         .dev            = {
 263                 .platform_data  = &trizeps4_led_data,
 264         },
 265 };
 266
 267 static struct platform_device *trizeps4_devices[] __initdata = {
 268         &flash_device,
 269         &dm9000_device,
 270         &leds_devices,
 271 };
 272
 273 static struct platform_device *trizeps4wl_devices[] __initdata = {
 274         &flash_device,
 275         &leds_devices,
 276 };
 277
 278 static short trizeps_conxs_bcr;
 279
 280 /* PCCARD power switching supports only 3,3V */
 281 void board_pcmcia_power(int power)
 282 {
 283         if (power) {
 284                 /* switch power on, put in reset and enable buffers */
 285                 trizeps_conxs_bcr |= power;
 286                 trizeps_conxs_bcr |= ConXS_BCR_CF_RESET;
 287                 trizeps_conxs_bcr &= ~ConXS_BCR_CF_BUF_EN;
 288                 BCR_writew(trizeps_conxs_bcr);
 289                 /* wait a little */
 290                 udelay(2000);
 291                 /* take reset away */
 292                 trizeps_conxs_bcr &= ~ConXS_BCR_CF_RESET;
 293                 BCR_writew(trizeps_conxs_bcr);
 294                 udelay(2000);
 295         } else {
 296                 /* put in reset */
 297                 trizeps_conxs_bcr |= ConXS_BCR_CF_RESET;
 298                 BCR_writew(trizeps_conxs_bcr);
 299                 udelay(1000);
 300                 /* switch power off */
 301                 trizeps_conxs_bcr &= ~0xf;
 302                 BCR_writew(trizeps_conxs_bcr);
 303         }
 304         pr_debug("%s: o%s 0x%x\n", __func__, power ? "n" : "ff",
 305                         trizeps_conxs_bcr);
 306 }
 307 EXPORT_SYMBOL(board_pcmcia_power);
 308
 309 /* backlight power switching for LCD panel */
 310 static void board_backlight_power(int on)
 311 {
 312         if (on)
 313                 trizeps_conxs_bcr |= ConXS_BCR_L_DISP;
 314         else
 315                 trizeps_conxs_bcr &= ~ConXS_BCR_L_DISP;
 316
 317         pr_debug("%s: o%s 0x%x\n", __func__, on ? "n" : "ff",
 318                         trizeps_conxs_bcr);
 319         BCR_writew(trizeps_conxs_bcr);
 320 }
 321
 322 /* a I2C based RTC is known on CONXS board */
 323 static struct i2c_board_info trizeps4_i2c_devices[] __initdata = {
 324         { I2C_BOARD_INFO("rtc-pcf8593", 0x51) }
 325 };
 326
 327 /****************************************************************************
 328  * MMC card slot external to module
 329  ****************************************************************************/
 330 static int trizeps4_mci_init(struct device *dev, irq_handler_t mci_detect_int,
 331                 void *data)
 332 {
 333         int err;
 334
 335         err = request_irq(TRIZEPS4_MMC_IRQ, mci_detect_int,
 336                           IRQF_TRIGGER_RISING, "MMC card detect", data);
 337         if (err) {
 338                 printk(KERN_ERR "trizeps4_mci_init: MMC/SD: can't request"
 339                                                 "MMC card detect IRQ\n");
 340                 return -1;
 341         }
 342         return 0;
 343 }
 344
 345 static void trizeps4_mci_exit(struct device *dev, void *data)
 346 {
 347         free_irq(TRIZEPS4_MMC_IRQ, data);
 348 }
 349
 350 static struct pxamci_platform_data trizeps4_mci_platform_data = {
 351         .ocr_mask       = MMC_VDD_32_33|MMC_VDD_33_34,
 352         .detect_delay_ms= 10,
 353         .init           = trizeps4_mci_init,
 354         .exit           = trizeps4_mci_exit,
 355         .get_ro         = NULL, /* write-protection not supported */
 356         .setpower       = NULL, /* power-switching not supported */
 357         .gpio_card_detect = -1,
 358         .gpio_card_ro   = -1,
 359         .gpio_power     = -1,
 360 };
 361
 362 /****************************************************************************
 363  * IRDA mode switching on stuart
 364  ****************************************************************************/
 365 #ifndef STATUS_LEDS_ON_STUART_PINS
 366 static short trizeps_conxs_ircr;
 367
 368 static int trizeps4_irda_startup(struct device *dev)
 369 {
 370         trizeps_conxs_ircr &= ~ConXS_IRCR_SD;
 371         IRCR_writew(trizeps_conxs_ircr);
 372         return 0;
 373 }
 374
 375 static void trizeps4_irda_shutdown(struct device *dev)
 376 {
 377         trizeps_conxs_ircr |= ConXS_IRCR_SD;
 378         IRCR_writew(trizeps_conxs_ircr);
 379 }
 380
 381 static void trizeps4_irda_transceiver_mode(struct device *dev, int mode)
 382 {
 383         unsigned long flags;
 384
 385         local_irq_save(flags);
 386         /* Switch mode */
 387         if (mode & IR_SIRMODE)
 388                 trizeps_conxs_ircr &= ~ConXS_IRCR_MODE; /* Slow mode */
 389         else if (mode & IR_FIRMODE)
 390                 trizeps_conxs_ircr |= ConXS_IRCR_MODE;  /* Fast mode */
 391
 392         /* Switch power */
 393         if (mode & IR_OFF)
 394                 trizeps_conxs_ircr |= ConXS_IRCR_SD;
 395         else
 396                 trizeps_conxs_ircr &= ~ConXS_IRCR_SD;
 397
 398         IRCR_writew(trizeps_conxs_ircr);
 399         local_irq_restore(flags);
 400
 401         pxa2xx_transceiver_mode(dev, mode);
 402 }
 403
 404 static struct pxaficp_platform_data trizeps4_ficp_platform_data = {
 405         .gpio_pwdown            = -1,
 406         .transceiver_cap        = IR_SIRMODE | IR_FIRMODE | IR_OFF,
 407         .transceiver_mode       = trizeps4_irda_transceiver_mode,
 408         .startup                = trizeps4_irda_startup,
 409         .shutdown               = trizeps4_irda_shutdown,
 410 };
 411 #endif
 412
 413 /****************************************************************************
 414  * OHCI USB port
 415  ****************************************************************************/
 416 static struct pxaohci_platform_data trizeps4_ohci_platform_data = {
 417         .port_mode      = PMM_PERPORT_MODE,
 418         .flags          = ENABLE_PORT_ALL | POWER_CONTROL_LOW | POWER_SENSE_LOW,
 419 };
 420
 421 static struct map_desc trizeps4_io_desc[] __initdata = {
 422         {       /* ConXS CFSR */
 423                 .virtual        = TRIZEPS4_CFSR_VIRT,
 424                 .pfn            = __phys_to_pfn(TRIZEPS4_CFSR_PHYS),
 425                 .length         = 0x00001000,
 426                 .type           = MT_DEVICE
 427         },
 428         {       /* ConXS BCR */
 429                 .virtual        = TRIZEPS4_BOCR_VIRT,
 430                 .pfn            = __phys_to_pfn(TRIZEPS4_BOCR_PHYS),
 431                 .length         = 0x00001000,
 432                 .type           = MT_DEVICE
 433         },
 434         {       /* ConXS IRCR */
 435                 .virtual        = TRIZEPS4_IRCR_VIRT,
 436                 .pfn            = __phys_to_pfn(TRIZEPS4_IRCR_PHYS),
 437                 .length         = 0x00001000,
 438                 .type           = MT_DEVICE
 439         },
 440         {       /* ConXS DCR */
 441                 .virtual        = TRIZEPS4_DICR_VIRT,
 442                 .pfn            = __phys_to_pfn(TRIZEPS4_DICR_PHYS),
 443                 .length         = 0x00001000,
 444                 .type           = MT_DEVICE
 445         },
 446         {       /* ConXS UPSR */
 447                 .virtual        = TRIZEPS4_UPSR_VIRT,
 448                 .pfn            = __phys_to_pfn(TRIZEPS4_UPSR_PHYS),
 449                 .length         = 0x00001000,
 450                 .type           = MT_DEVICE
 451         }
 452 };
 453
 454 static struct pxafb_mode_info sharp_lcd_mode = {
 455         .pixclock       = 78000,
 456         .xres           = 640,
 457         .yres           = 480,
 458         .bpp            = 8,
 459         .hsync_len      = 4,
 460         .left_margin    = 4,
 461         .right_margin   = 4,
 462         .vsync_len      = 2,
 463         .upper_margin   = 0,
 464         .lower_margin   = 0,
 465         .sync           = FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT,
 466         .cmap_greyscale = 0,
 467 };
 468
 469 static struct pxafb_mach_info sharp_lcd = {
 470         .modes          = &sharp_lcd_mode,
 471         .num_modes      = 1,
 472         .lcd_conn       = LCD_COLOR_DSTN_16BPP | LCD_PCLK_EDGE_FALL,
 473         .cmap_inverse   = 0,
 474         .cmap_static    = 0,
 475         .pxafb_backlight_power = board_backlight_power,
 476 };
 477
 478 static struct pxafb_mode_info toshiba_lcd_mode = {
 479         .pixclock       = 39720,
 480         .xres           = 640,
 481         .yres           = 480,
 482         .bpp            = 8,
 483         .hsync_len      = 63,
 484         .left_margin    = 12,
 485         .right_margin   = 12,
 486         .vsync_len      = 4,
 487         .upper_margin   = 32,
 488         .lower_margin   = 10,
 489         .sync           = 0,
 490         .cmap_greyscale = 0,
 491 };
 492
 493 static struct pxafb_mach_info toshiba_lcd = {
 494         .modes          = &toshiba_lcd_mode,
 495         .num_modes      = 1,
 496         .lcd_conn       = (LCD_COLOR_TFT_16BPP | LCD_PCLK_EDGE_FALL),
 497         .cmap_inverse   = 0,
 498         .cmap_static    = 0,
 499         .pxafb_backlight_power = board_backlight_power,
 500 };
 501
 502 static void __init trizeps4_init(void)
 503 {
 504         pxa2xx_mfp_config(ARRAY_AND_SIZE(trizeps4_pin_config));
 505         if (machine_is_trizeps4wl()) {
 506                 pxa2xx_mfp_config(ARRAY_AND_SIZE(trizeps4wl_pin_config));
 507                 platform_add_devices(trizeps4wl_devices,
 508                                         ARRAY_SIZE(trizeps4wl_devices));
 509         } else {
 510                 platform_add_devices(trizeps4_devices,
 511                                         ARRAY_SIZE(trizeps4_devices));
 512         }
 513
 514         pxa_set_ffuart_info(NULL);
 515         pxa_set_btuart_info(NULL);
 516         pxa_set_stuart_info(NULL);
 517
 518         if (0)  /* dont know how to determine LCD */
 519                 pxa_set_fb_info(NULL, &sharp_lcd);
 520         else
 521                 pxa_set_fb_info(NULL, &toshiba_lcd);
 522
 523         pxa_set_mci_info(&trizeps4_mci_platform_data);
 524 #ifndef STATUS_LEDS_ON_STUART_PINS
 525         pxa_set_ficp_info(&trizeps4_ficp_platform_data);
 526 #endif
 527         pxa_set_ohci_info(&trizeps4_ohci_platform_data);
 528         pxa_set_ac97_info(NULL);
 529         pxa_set_i2c_info(NULL);
 530         i2c_register_board_info(0, trizeps4_i2c_devices,
 531                                         ARRAY_SIZE(trizeps4_i2c_devices));
 532
 533         /* this is the reset value */
 534         trizeps_conxs_bcr = 0x00A0;
 535
 536         BCR_writew(trizeps_conxs_bcr);
 537         board_backlight_power(1);
 538
 539         regulator_has_full_constraints();
 540 }
 541
 542 static void __init trizeps4_map_io(void)
 543 {
 544         pxa27x_map_io();
 545         iotable_init(trizeps4_io_desc, ARRAY_SIZE(trizeps4_io_desc));
 546
 547         if ((__raw_readl(MSC0) & 0x8) && (__raw_readl(BOOT_DEF) & 0x1)) {
 548                 /* if flash is 16 bit wide its a Trizeps4 WL */
 549                 __machine_arch_type = MACH_TYPE_TRIZEPS4WL;
 550                 trizeps4_flash_data[0].width = 2;
 551         } else {
 552                 /* if flash is 32 bit wide its a Trizeps4 */
 553                 __machine_arch_type = MACH_TYPE_TRIZEPS4;
 554                 trizeps4_flash_data[0].width = 4;
 555         }
 556 }
 557
 558 MACHINE_START(TRIZEPS4, "Keith und Koep Trizeps IV module")
 559         /* MAINTAINER("Jürgen Schindele") */
 560         .atag_offset    = 0x100,
 561         .init_machine   = trizeps4_init,
 562         .map_io         = trizeps4_map_io,
 563         .nr_irqs        = PXA_NR_IRQS,
 564         .init_irq       = pxa27x_init_irq,
 565         .handle_irq     = pxa27x_handle_irq,
 566         .init_time      = pxa_timer_init,
 567         .restart        = pxa_restart,
 568 MACHINE_END
 569
 570 MACHINE_START(TRIZEPS4WL, "Keith und Koep Trizeps IV-WL module")
 571         /* MAINTAINER("Jürgen Schindele") */
 572         .atag_offset    = 0x100,
 573         .init_machine   = trizeps4_init,
 574         .map_io         = trizeps4_map_io,
 575         .nr_irqs        = PXA_NR_IRQS,
 576         .init_irq       = pxa27x_init_irq,
 577         .handle_irq     = pxa27x_handle_irq,
 578         .init_time      = pxa_timer_init,
 579         .restart        = pxa_restart,
 580 MACHINE_END