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   1 /*
   2  * linux/arch/arm/mach-omap1/board-osk.c
   3  *
   4  * Board specific init for OMAP5912 OSK
   5  *
   6  * Written by Dirk Behme <dirk.behme@de.bosch.com>
   7  *
   8  * This program is free software; you can redistribute it and/or modify it
   9  * under the terms of the GNU General Public License as published by the
  10  * Free Software Foundation; either version 2 of the License, or (at your
  11  * option) any later version.
  12  *
  13  * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED
  14  * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
  15  * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN
  16  * NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
  17  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
  18  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
  19  * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
  20  * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  21  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
  22  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  23  *
  24  * You should have received a copy of the  GNU General Public License along
  25  * with this program; if not, write  to the Free Software Foundation, Inc.,
  26  * 675 Mass Ave, Cambridge, MA 02139, USA.
  27  */
  28
  29 #include <linux/kernel.h>
  30 #include <linux/init.h>
  31 #include <linux/platform_device.h>
  32 #include <linux/interrupt.h>
  33 #include <linux/irq.h>
  34 #include <linux/i2c.h>
  35
  36 #include <linux/mtd/mtd.h>
  37 #include <linux/mtd/partitions.h>
  38
  39 #include <linux/i2c/tps65010.h>
  40
  41 #include <asm/hardware.h>
  42 #include <asm/gpio.h>
  43
  44 #include <asm/mach-types.h>
  45 #include <asm/mach/arch.h>
  46 #include <asm/mach/map.h>
  47 #include <asm/mach/flash.h>
  48
  49 #include <asm/arch/usb.h>
  50 #include <asm/arch/mux.h>
  51 #include <asm/arch/tc.h>
  52 #include <asm/arch/common.h>
  53 #include <asm/arch/mcbsp.h>
  54 #include <asm/arch/omap-alsa.h>
  55
  56 static struct mtd_partition osk_partitions[] = {
  57         /* bootloader (U-Boot, etc) in first sector */
  58         {
  59               .name             = "bootloader",
  60               .offset           = 0,
  61               .size             = SZ_128K,
  62               .mask_flags       = MTD_WRITEABLE, /* force read-only */
  63         },
  64         /* bootloader params in the next sector */
  65         {
  66               .name             = "params",
  67               .offset           = MTDPART_OFS_APPEND,
  68               .size             = SZ_128K,
  69               .mask_flags       = 0,
  70         }, {
  71               .name             = "kernel",
  72               .offset           = MTDPART_OFS_APPEND,
  73               .size             = SZ_2M,
  74               .mask_flags       = 0
  75         }, {
  76               .name             = "filesystem",
  77               .offset           = MTDPART_OFS_APPEND,
  78               .size             = MTDPART_SIZ_FULL,
  79               .mask_flags       = 0
  80         }
  81 };
  82
  83 static struct flash_platform_data osk_flash_data = {
  84         .map_name       = "cfi_probe",
  85         .width          = 2,
  86         .parts          = osk_partitions,
  87         .nr_parts       = ARRAY_SIZE(osk_partitions),
  88 };
  89
  90 static struct resource osk_flash_resource = {
  91         /* this is on CS3, wherever it's mapped */
  92         .flags          = IORESOURCE_MEM,
  93 };
  94
  95 static struct platform_device osk5912_flash_device = {
  96         .name           = "omapflash",
  97         .id             = 0,
  98         .dev            = {
  99                 .platform_data  = &osk_flash_data,
 100         },
 101         .num_resources  = 1,
 102         .resource       = &osk_flash_resource,
 103 };
 104
 105 static struct resource osk5912_smc91x_resources[] = {
 106         [0] = {
 107                 .start  = OMAP_OSK_ETHR_START,          /* Physical */
 108                 .end    = OMAP_OSK_ETHR_START + 0xf,
 109                 .flags  = IORESOURCE_MEM,
 110         },
 111         [1] = {
 112                 .start  = OMAP_GPIO_IRQ(0),
 113                 .end    = OMAP_GPIO_IRQ(0),
 114                 .flags  = IORESOURCE_IRQ | IORESOURCE_IRQ_HIGHEDGE,
 115         },
 116 };
 117
 118 static struct platform_device osk5912_smc91x_device = {
 119         .name           = "smc91x",
 120         .id             = -1,
 121         .num_resources  = ARRAY_SIZE(osk5912_smc91x_resources),
 122         .resource       = osk5912_smc91x_resources,
 123 };
 124
 125 static struct resource osk5912_cf_resources[] = {
 126         [0] = {
 127                 .start  = OMAP_GPIO_IRQ(62),
 128                 .end    = OMAP_GPIO_IRQ(62),
 129                 .flags  = IORESOURCE_IRQ,
 130         },
 131 };
 132
 133 static struct platform_device osk5912_cf_device = {
 134         .name           = "omap_cf",
 135         .id             = -1,
 136         .dev = {
 137                 .platform_data  = (void *) 2 /* CS2 */,
 138         },
 139         .num_resources  = ARRAY_SIZE(osk5912_cf_resources),
 140         .resource       = osk5912_cf_resources,
 141 };
 142
 143 #define DEFAULT_BITPERSAMPLE 16
 144
 145 static struct omap_mcbsp_reg_cfg mcbsp_regs = {
 146         .spcr2 = FREE | FRST | GRST | XRST | XINTM(3),
 147         .spcr1 = RINTM(3) | RRST,
 148         .rcr2 = RPHASE | RFRLEN2(OMAP_MCBSP_WORD_8) |
 149             RWDLEN2(OMAP_MCBSP_WORD_16) | RDATDLY(0),
 150         .rcr1 = RFRLEN1(OMAP_MCBSP_WORD_8) | RWDLEN1(OMAP_MCBSP_WORD_16),
 151         .xcr2 = XPHASE | XFRLEN2(OMAP_MCBSP_WORD_8) |
 152             XWDLEN2(OMAP_MCBSP_WORD_16) | XDATDLY(0) | XFIG,
 153         .xcr1 = XFRLEN1(OMAP_MCBSP_WORD_8) | XWDLEN1(OMAP_MCBSP_WORD_16),
 154         .srgr1 = FWID(DEFAULT_BITPERSAMPLE - 1),
 155         .srgr2 = GSYNC | CLKSP | FSGM | FPER(DEFAULT_BITPERSAMPLE * 2 - 1),
 156         /*.pcr0 = FSXM | FSRM | CLKXM | CLKRM | CLKXP | CLKRP,*/ /* mcbsp: master */
 157         .pcr0 = CLKXP | CLKRP,  /* mcbsp: slave */
 158 };
 159
 160 static struct omap_alsa_codec_config alsa_config = {
 161         .name                   = "OSK AIC23",
 162         .mcbsp_regs_alsa        = &mcbsp_regs,
 163         .codec_configure_dev    = NULL, /* aic23_configure, */
 164         .codec_set_samplerate   = NULL, /* aic23_set_samplerate, */
 165         .codec_clock_setup      = NULL, /* aic23_clock_setup, */
 166         .codec_clock_on         = NULL, /* aic23_clock_on, */
 167         .codec_clock_off        = NULL, /* aic23_clock_off, */
 168         .get_default_samplerate = NULL, /* aic23_get_default_samplerate, */
 169 };
 170
 171 static struct platform_device osk5912_mcbsp1_device = {
 172         .name   = "omap_alsa_mcbsp",
 173         .id     = 1,
 174         .dev = {
 175                 .platform_data  = &alsa_config,
 176         },
 177 };
 178
 179 static struct platform_device *osk5912_devices[] __initdata = {
 180         &osk5912_flash_device,
 181         &osk5912_smc91x_device,
 182         &osk5912_cf_device,
 183         &osk5912_mcbsp1_device,
 184 };
 185
 186 static struct i2c_board_info __initdata osk_i2c_board_info[] = {
 187         {
 188                 I2C_BOARD_INFO("tps65010", 0x48),
 189                 .type           = "tps65010",
 190                 .irq            = OMAP_GPIO_IRQ(OMAP_MPUIO(1)),
 191         },
 192         /* TODO when driver support is ready:
 193          *  - aic23 audio chip at 0x1a
 194          *  - on Mistral, 24c04 eeprom at 0x50
 195          *  - optionally on Mistral, ov9640 camera sensor at 0x30
 196          */
 197 };
 198
 199 static void __init osk_init_smc91x(void)
 200 {
 201         if ((omap_request_gpio(0)) < 0) {
 202                 printk("Error requesting gpio 0 for smc91x irq\n");
 203                 return;
 204         }
 205
 206         /* Check EMIFS wait states to fix errors with SMC_GET_PKT_HDR */
 207         EMIFS_CCS(1) |= 0x3;
 208 }
 209
 210 static void __init osk_init_cf(void)
 211 {
 212         omap_cfg_reg(M7_1610_GPIO62);
 213         if ((omap_request_gpio(62)) < 0) {
 214                 printk("Error requesting gpio 62 for CF irq\n");
 215                 return;
 216         }
 217         /* the CF I/O IRQ is really active-low */
 218         set_irq_type(OMAP_GPIO_IRQ(62), IRQT_FALLING);
 219 }
 220
 221 static void __init osk_init_irq(void)
 222 {
 223         omap1_init_common_hw();
 224         omap_init_irq();
 225         omap_gpio_init();
 226         osk_init_smc91x();
 227         osk_init_cf();
 228 }
 229
 230 static struct omap_usb_config osk_usb_config __initdata = {
 231         /* has usb host connector (A) ... for development it can also
 232          * be used, with a NONSTANDARD gender-bending cable/dongle, as
 233          * a peripheral.
 234          */
 235 #ifdef  CONFIG_USB_GADGET_OMAP
 236         .register_dev   = 1,
 237         .hmc_mode       = 0,
 238 #else
 239         .register_host  = 1,
 240         .hmc_mode       = 16,
 241         .rwc            = 1,
 242 #endif
 243         .pins[0]        = 2,
 244 };
 245
 246 static struct omap_uart_config osk_uart_config __initdata = {
 247         .enabled_uarts = (1 << 0),
 248 };
 249
 250 #ifdef  CONFIG_OMAP_OSK_MISTRAL
 251 static struct omap_lcd_config osk_lcd_config __initdata = {
 252         .ctrl_name      = "internal",
 253 };
 254 #endif
 255
 256 static struct omap_board_config_kernel osk_config[] __initdata = {
 257         { OMAP_TAG_USB,           &osk_usb_config },
 258         { OMAP_TAG_UART,                &osk_uart_config },
 259 #ifdef  CONFIG_OMAP_OSK_MISTRAL
 260         { OMAP_TAG_LCD,                 &osk_lcd_config },
 261 #endif
 262 };
 263
 264 #ifdef  CONFIG_OMAP_OSK_MISTRAL
 265
 266 #include <linux/input.h>
 267 #include <linux/spi/spi.h>
 268 #include <linux/spi/ads7846.h>
 269
 270 #include <asm/arch/keypad.h>
 271
 272 static const int osk_keymap[] = {
 273         /* KEY(col, row, code) */
 274         KEY(0, 0, KEY_F1),              /* SW4 */
 275         KEY(0, 3, KEY_UP),              /* (sw2/up) */
 276         KEY(1, 1, KEY_LEFTCTRL),        /* SW5 */
 277         KEY(1, 2, KEY_LEFT),            /* (sw2/left) */
 278         KEY(2, 0, KEY_SPACE),           /* SW3 */
 279         KEY(2, 1, KEY_ESC),             /* SW6 */
 280         KEY(2, 2, KEY_DOWN),            /* (sw2/down) */
 281         KEY(3, 2, KEY_ENTER),           /* (sw2/select) */
 282         KEY(3, 3, KEY_RIGHT),           /* (sw2/right) */
 283         0
 284 };
 285
 286 static struct omap_kp_platform_data osk_kp_data = {
 287         .rows           = 8,
 288         .cols           = 8,
 289         .keymap         = (int *) osk_keymap,
 290         .keymapsize     = ARRAY_SIZE(osk_keymap),
 291         .delay          = 9,
 292 };
 293
 294 static struct resource osk5912_kp_resources[] = {
 295         [0] = {
 296                 .start  = INT_KEYBOARD,
 297                 .end    = INT_KEYBOARD,
 298                 .flags  = IORESOURCE_IRQ,
 299         },
 300 };
 301
 302 static struct platform_device osk5912_kp_device = {
 303         .name           = "omap-keypad",
 304         .id             = -1,
 305         .dev            = {
 306                 .platform_data = &osk_kp_data,
 307         },
 308         .num_resources  = ARRAY_SIZE(osk5912_kp_resources),
 309         .resource       = osk5912_kp_resources,
 310 };
 311
 312 static struct omap_backlight_config mistral_bl_data = {
 313         .default_intensity      = 0xa0,
 314 };
 315
 316 static struct platform_device mistral_bl_device = {
 317         .name           = "omap-bl",
 318         .id             = -1,
 319         .dev            = {
 320                 .platform_data = &mistral_bl_data,
 321         },
 322 };
 323
 324 static struct platform_device osk5912_lcd_device = {
 325         .name           = "lcd_osk",
 326         .id             = -1,
 327 };
 328
 329 static struct platform_device *mistral_devices[] __initdata = {
 330         &osk5912_kp_device,
 331         &mistral_bl_device,
 332         &osk5912_lcd_device,
 333 };
 334
 335 static int mistral_get_pendown_state(void)
 336 {
 337         return !omap_get_gpio_datain(4);
 338 }
 339
 340 static const struct ads7846_platform_data mistral_ts_info = {
 341         .model                  = 7846,
 342         .vref_delay_usecs       = 100,  /* internal, no capacitor */
 343         .x_plate_ohms           = 419,
 344         .y_plate_ohms           = 486,
 345         .get_pendown_state      = mistral_get_pendown_state,
 346 };
 347
 348 static struct spi_board_info __initdata mistral_boardinfo[] = { {
 349         /* MicroWire (bus 2) CS0 has an ads7846e */
 350         .modalias               = "ads7846",
 351         .platform_data          = &mistral_ts_info,
 352         .irq                    = OMAP_GPIO_IRQ(4),
 353         .max_speed_hz           = 120000 /* max sample rate at 3V */
 354                                         * 26 /* command + data + overhead */,
 355         .bus_num                = 2,
 356         .chip_select            = 0,
 357 } };
 358
 359 #ifdef  CONFIG_PM
 360 static irqreturn_t
 361 osk_mistral_wake_interrupt(int irq, void *ignored)
 362 {
 363         return IRQ_HANDLED;
 364 }
 365 #endif
 366
 367 static void __init osk_mistral_init(void)
 368 {
 369         /* NOTE:  we could actually tell if there's a Mistral board
 370          * attached, e.g. by trying to read something from the ads7846.
 371          * But this arch_init() code is too early for that, since we
 372          * can't talk to the ads or even the i2c eeprom.
 373          */
 374
 375         /* parallel camera interface */
 376         omap_cfg_reg(J15_1610_CAM_LCLK);
 377         omap_cfg_reg(J18_1610_CAM_D7);
 378         omap_cfg_reg(J19_1610_CAM_D6);
 379         omap_cfg_reg(J14_1610_CAM_D5);
 380         omap_cfg_reg(K18_1610_CAM_D4);
 381         omap_cfg_reg(K19_1610_CAM_D3);
 382         omap_cfg_reg(K15_1610_CAM_D2);
 383         omap_cfg_reg(K14_1610_CAM_D1);
 384         omap_cfg_reg(L19_1610_CAM_D0);
 385         omap_cfg_reg(L18_1610_CAM_VS);
 386         omap_cfg_reg(L15_1610_CAM_HS);
 387         omap_cfg_reg(M19_1610_CAM_RSTZ);
 388         omap_cfg_reg(Y15_1610_CAM_OUTCLK);
 389
 390         /* serial camera interface */
 391         omap_cfg_reg(H19_1610_CAM_EXCLK);
 392         omap_cfg_reg(W13_1610_CCP_CLKM);
 393         omap_cfg_reg(Y12_1610_CCP_CLKP);
 394         /* CCP_DATAM CONFLICTS WITH UART1.TX (and serial console) */
 395         /* omap_cfg_reg(Y14_1610_CCP_DATAM); */
 396         omap_cfg_reg(W14_1610_CCP_DATAP);
 397
 398         /* CAM_PWDN */
 399         if (omap_request_gpio(11) == 0) {
 400                 omap_cfg_reg(N20_1610_GPIO11);
 401                 omap_set_gpio_direction(11, 0 /* out */);
 402                 omap_set_gpio_dataout(11, 0 /* off */);
 403         } else
 404                 pr_debug("OSK+Mistral: CAM_PWDN is awol\n");
 405
 406
 407         /* omap_cfg_reg(P19_1610_GPIO6); */     /* BUSY */
 408         omap_cfg_reg(P20_1610_GPIO4);   /* PENIRQ */
 409         set_irq_type(OMAP_GPIO_IRQ(4), IRQT_FALLING);
 410         spi_register_board_info(mistral_boardinfo,
 411                         ARRAY_SIZE(mistral_boardinfo));
 412
 413         /* the sideways button (SW1) is for use as a "wakeup" button */
 414         omap_cfg_reg(N15_1610_MPUIO2);
 415         if (omap_request_gpio(OMAP_MPUIO(2)) == 0) {
 416                 int ret = 0;
 417                 omap_set_gpio_direction(OMAP_MPUIO(2), 1);
 418                 set_irq_type(OMAP_GPIO_IRQ(OMAP_MPUIO(2)), IRQT_RISING);
 419 #ifdef  CONFIG_PM
 420                 /* share the IRQ in case someone wants to use the
 421                  * button for more than wakeup from system sleep.
 422                  */
 423                 ret = request_irq(OMAP_GPIO_IRQ(OMAP_MPUIO(2)),
 424                                 &osk_mistral_wake_interrupt,
 425                                 IRQF_SHARED, "mistral_wakeup",
 426                                 &osk_mistral_wake_interrupt);
 427                 if (ret != 0) {
 428                         omap_free_gpio(OMAP_MPUIO(2));
 429                         printk(KERN_ERR "OSK+Mistral: no wakeup irq, %d?\n",
 430                                 ret);
 431                 } else
 432                         enable_irq_wake(OMAP_GPIO_IRQ(OMAP_MPUIO(2)));
 433 #endif
 434         } else
 435                 printk(KERN_ERR "OSK+Mistral: wakeup button is awol\n");
 436
 437         /* LCD:  backlight, and power; power controls other devices on the
 438          * board, like the touchscreen, EEPROM, and wakeup (!) switch.
 439          */
 440         omap_cfg_reg(PWL);
 441         if (omap_request_gpio(2) == 0) {
 442                 omap_set_gpio_direction(2, 0 /* out */);
 443                 omap_set_gpio_dataout(2, 1 /* on */);
 444         }
 445
 446         platform_add_devices(mistral_devices, ARRAY_SIZE(mistral_devices));
 447 }
 448 #else
 449 static void __init osk_mistral_init(void) { }
 450 #endif
 451
 452 #define EMIFS_CS3_VAL   (0x88013141)
 453
 454 static void __init osk_init(void)
 455 {
 456         /* Workaround for wrong CS3 (NOR flash) timing
 457          * There are some U-Boot versions out there which configure
 458          * wrong CS3 memory timings. This mainly leads to CRC
 459          * or similar errors if you use NOR flash (e.g. with JFFS2)
 460          */
 461         if (EMIFS_CCS(3) != EMIFS_CS3_VAL)
 462                 EMIFS_CCS(3) = EMIFS_CS3_VAL;
 463
 464         osk_flash_resource.end = osk_flash_resource.start = omap_cs3_phys();
 465         osk_flash_resource.end += SZ_32M - 1;
 466         platform_add_devices(osk5912_devices, ARRAY_SIZE(osk5912_devices));
 467         omap_board_config = osk_config;
 468         omap_board_config_size = ARRAY_SIZE(osk_config);
 469         USB_TRANSCEIVER_CTRL_REG |= (3 << 1);
 470
 471         /* irq for tps65010 chip */
 472         /* bootloader effectively does:  omap_cfg_reg(U19_1610_MPUIO1); */
 473         if (gpio_request(OMAP_MPUIO(1), "tps65010") == 0)
 474                 gpio_direction_input(OMAP_MPUIO(1));
 475
 476         omap_serial_init();
 477         omap_register_i2c_bus(1, 400, osk_i2c_board_info,
 478                               ARRAY_SIZE(osk_i2c_board_info));
 479         osk_mistral_init();
 480 }
 481
 482 static void __init osk_map_io(void)
 483 {
 484         omap1_map_common_io();
 485 }
 486
 487 #ifdef CONFIG_TPS65010
 488 static int __init osk_tps_init(void)
 489 {
 490         if (!machine_is_omap_osk())
 491                 return 0;
 492
 493         /* Let LED1 (D9) blink */
 494         tps65010_set_led(LED1, BLINK);
 495
 496         /* Disable LED 2 (D2) */
 497         tps65010_set_led(LED2, OFF);
 498
 499         /* Set GPIO 1 HIGH to disable VBUS power supply;
 500          * OHCI driver powers it up/down as needed.
 501          */
 502         tps65010_set_gpio_out_value(GPIO1, HIGH);
 503
 504         /* Set GPIO 2 low to turn on LED D3 */
 505         tps65010_set_gpio_out_value(GPIO2, HIGH);
 506
 507         /* Set GPIO 3 low to take ethernet out of reset */
 508         tps65010_set_gpio_out_value(GPIO3, LOW);
 509
 510         /* gpio4 for VDD_DSP */
 511         /* FIXME send power to DSP iff it's configured */
 512
 513         /* Enable LOW_PWR */
 514         tps65010_set_low_pwr(ON);
 515
 516         /* Switch VLDO2 to 3.0V for AIC23 */
 517         tps65010_config_vregs1(TPS_LDO2_ENABLE | TPS_VLDO2_3_0V
 518                         | TPS_LDO1_ENABLE);
 519
 520         return 0;
 521 }
 522 fs_initcall(osk_tps_init);
 523 #endif
 524
 525 MACHINE_START(OMAP_OSK, "TI-OSK")
 526         /* Maintainer: Dirk Behme <dirk.behme@de.bosch.com> */
 527         .phys_io        = 0xfff00000,
 528         .io_pg_offst    = ((0xfef00000) >> 18) & 0xfffc,
 529         .boot_params    = 0x10000100,
 530         .map_io         = osk_map_io,
 531         .init_irq       = osk_init_irq,
 532         .init_machine   = osk_init,
 533         .timer          = &omap_timer,
 534 MACHINE_END