linux/arch/arm/mach-pxa/trizeps4.c
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   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 *****************************************************************************/
  63static 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
 137static 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 ****************************************************************************/
 149static 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
 174static 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
 182static struct resource flash_resource = {
 183        .start  = PXA_CS0_PHYS,
 184        .end    = PXA_CS0_PHYS + SZ_32M - 1,
 185        .flags  = IORESOURCE_MEM,
 186};
 187
 188static 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 ****************************************************************************/
 201static 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
 219static struct dm9000_plat_data tri_dm9000_platdata = {
 220        .flags          = DM9000_PLATF_32BITONLY,
 221};
 222
 223static 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 ****************************************************************************/
 236static 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
 253static struct gpio_led_platform_data trizeps4_led_data = {
 254        .leds           = trizeps4_led,
 255        .num_leds       = ARRAY_SIZE(trizeps4_led),
 256};
 257
 258static struct platform_device leds_devices = {
 259        .name           = "leds-gpio",
 260        .id             = -1,
 261        .dev            = {
 262                .platform_data  = &trizeps4_led_data,
 263        },
 264};
 265
 266static struct platform_device *trizeps4_devices[] __initdata = {
 267        &flash_device,
 268        &dm9000_device,
 269        &leds_devices,
 270};
 271
 272static struct platform_device *trizeps4wl_devices[] __initdata = {
 273        &flash_device,
 274        &leds_devices,
 275};
 276
 277static short trizeps_conxs_bcr;
 278
 279/* PCCARD power switching supports only 3,3V */
 280void 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}
 306EXPORT_SYMBOL(board_pcmcia_power);
 307
 308/* backlight power switching for LCD panel */
 309static 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 */
 322static 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 ****************************************************************************/
 329static 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
 344static void trizeps4_mci_exit(struct device *dev, void *data)
 345{
 346        free_irq(TRIZEPS4_MMC_IRQ, data);
 347}
 348
 349static 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
 365static short trizeps_conxs_ircr;
 366
 367static 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
 374static void trizeps4_irda_shutdown(struct device *dev)
 375{
 376        trizeps_conxs_ircr |= ConXS_IRCR_SD;
 377        IRCR_writew(trizeps_conxs_ircr);
 378}
 379
 380static 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
 403static 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 ****************************************************************************/
 415static 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
 420static 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
 453static 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
 468static 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
 477static 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
 492static 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
 501static 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
 539static 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
 555MACHINE_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,
 565MACHINE_END
 566
 567MACHINE_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,
 577MACHINE_END
 578