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