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