arch/arm/mach-omap1/board-osk.c

   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/interrupt.h>
  35 #include <linux/i2c.h>
  36
  37 #include <linux/mtd/mtd.h>
  38 #include <linux/mtd/partitions.h>
  39
  40 #include <linux/i2c/tps65010.h>
  41
  42 #include <asm/hardware.h>
  43 #include <asm/gpio.h>
  44
  45 #include <asm/mach-types.h>
  46 #include <asm/mach/arch.h>
  47 #include <asm/mach/map.h>
  48 #include <asm/mach/flash.h>
  49
  50 #include <asm/arch/usb.h>
  51 #include <asm/arch/mux.h>
  52 #include <asm/arch/tc.h>
  53 #include <asm/arch/common.h>
  54 #include <asm/arch/mcbsp.h>
  55 #include <asm/arch/omap-alsa.h>
  56
  57 static struct mtd_partition osk_partitions[] = {
  58         /* bootloader (U-Boot, etc) in first sector */
  59         {
  60               .name             = "bootloader",
  61               .offset           = 0,
  62               .size             = SZ_128K,
  63               .mask_flags       = MTD_WRITEABLE, /* force read-only */
  64         },
  65         /* bootloader params in the next sector */
  66         {
  67               .name             = "params",
  68               .offset           = MTDPART_OFS_APPEND,
  69               .size             = SZ_128K,
  70               .mask_flags       = 0,
  71         }, {
  72               .name             = "kernel",
  73               .offset           = MTDPART_OFS_APPEND,
  74               .size             = SZ_2M,
  75               .mask_flags       = 0
  76         }, {
  77               .name             = "filesystem",
  78               .offset           = MTDPART_OFS_APPEND,
  79               .size             = MTDPART_SIZ_FULL,
  80               .mask_flags       = 0
  81         }
  82 };
  83
  84 static struct flash_platform_data osk_flash_data = {
  85         .map_name       = "cfi_probe",
  86         .width          = 2,
  87         .parts          = osk_partitions,
  88         .nr_parts       = ARRAY_SIZE(osk_partitions),
  89 };
  90
  91 static struct resource osk_flash_resource = {
  92         /* this is on CS3, wherever it's mapped */
  93         .flags          = IORESOURCE_MEM,
  94 };
  95
  96 static struct platform_device osk5912_flash_device = {
  97         .name           = "omapflash",
  98         .id             = 0,
  99         .dev            = {
 100                 .platform_data  = &osk_flash_data,
 101         },
 102         .num_resources  = 1,
 103         .resource       = &osk_flash_resource,
 104 };
 105
 106 static struct resource osk5912_smc91x_resources[] = {
 107         [0] = {
 108                 .start  = OMAP_OSK_ETHR_START,          /* Physical */
 109                 .end    = OMAP_OSK_ETHR_START + 0xf,
 110                 .flags  = IORESOURCE_MEM,
 111         },
 112         [1] = {
 113                 .start  = OMAP_GPIO_IRQ(0),
 114                 .end    = OMAP_GPIO_IRQ(0),
 115                 .flags  = IORESOURCE_IRQ,
 116         },
 117 };
 118
 119 static struct platform_device osk5912_smc91x_device = {
 120         .name           = "smc91x",
 121         .id             = -1,
 122         .num_resources  = ARRAY_SIZE(osk5912_smc91x_resources),
 123         .resource       = osk5912_smc91x_resources,
 124 };
 125
 126 static struct resource osk5912_cf_resources[] = {
 127         [0] = {
 128                 .start  = OMAP_GPIO_IRQ(62),
 129                 .end    = OMAP_GPIO_IRQ(62),
 130                 .flags  = IORESOURCE_IRQ,
 131         },
 132 };
 133
 134 static struct platform_device osk5912_cf_device = {
 135         .name           = "omap_cf",
 136         .id             = -1,
 137         .dev = {
 138                 .platform_data  = (void *) 2 /* CS2 */,
 139         },
 140         .num_resources  = ARRAY_SIZE(osk5912_cf_resources),
 141         .resource       = osk5912_cf_resources,
 142 };
 143
 144 #define DEFAULT_BITPERSAMPLE 16
 145
 146 static struct omap_mcbsp_reg_cfg mcbsp_regs = {
 147         .spcr2 = FREE | FRST | GRST | XRST | XINTM(3),
 148         .spcr1 = RINTM(3) | RRST,
 149         .rcr2 = RPHASE | RFRLEN2(OMAP_MCBSP_WORD_8) |
 150             RWDLEN2(OMAP_MCBSP_WORD_16) | RDATDLY(0),
 151         .rcr1 = RFRLEN1(OMAP_MCBSP_WORD_8) | RWDLEN1(OMAP_MCBSP_WORD_16),
 152         .xcr2 = XPHASE | XFRLEN2(OMAP_MCBSP_WORD_8) |
 153             XWDLEN2(OMAP_MCBSP_WORD_16) | XDATDLY(0) | XFIG,
 154         .xcr1 = XFRLEN1(OMAP_MCBSP_WORD_8) | XWDLEN1(OMAP_MCBSP_WORD_16),
 155         .srgr1 = FWID(DEFAULT_BITPERSAMPLE - 1),
 156         .srgr2 = GSYNC | CLKSP | FSGM | FPER(DEFAULT_BITPERSAMPLE * 2 - 1),
 157         /*.pcr0 = FSXM | FSRM | CLKXM | CLKRM | CLKXP | CLKRP,*/ /* mcbsp: master */
 158         .pcr0 = CLKXP | CLKRP,  /* mcbsp: slave */
 159 };
 160
 161 static struct omap_alsa_codec_config alsa_config = {
 162         .name                   = "OSK AIC23",
 163         .mcbsp_regs_alsa        = &mcbsp_regs,
 164         .codec_configure_dev    = NULL, // aic23_configure,
 165         .codec_set_samplerate   = NULL, // aic23_set_samplerate,
 166         .codec_clock_setup      = NULL, // aic23_clock_setup,
 167         .codec_clock_on         = NULL, // aic23_clock_on,
 168         .codec_clock_off        = NULL, // aic23_clock_off,
 169         .get_default_samplerate = NULL, // aic23_get_default_samplerate,
 170 };
 171
 172 static struct platform_device osk5912_mcbsp1_device = {
 173         .name   = "omap_alsa_mcbsp",
 174         .id     = 1,
 175         .dev = {
 176                 .platform_data  = &alsa_config,
 177         },
 178 };
 179
 180 static struct platform_device *osk5912_devices[] __initdata = {
 181         &osk5912_flash_device,
 182         &osk5912_smc91x_device,
 183         &osk5912_cf_device,
 184         &osk5912_mcbsp1_device,
 185 };
 186
 187 static struct i2c_board_info __initdata osk_i2c_board_info[] = {
 188         {
 189                 I2C_BOARD_INFO("tps65010", 0x48),
 190                 .type           = "tps65010",
 191                 .irq            = OMAP_GPIO_IRQ(OMAP_MPUIO(1)),
 192         },
 193         /* TODO when driver support is ready:
 194          *  - aic23 audio chip at 0x1a
 195          *  - on Mistral, 24c04 eeprom at 0x50
 196          *  - optionally on Mistral, ov9640 camera sensor at 0x30
 197          */
 198 };
 199
 200 static void __init osk_init_smc91x(void)
 201 {
 202         if ((omap_request_gpio(0)) < 0) {
 203                 printk("Error requesting gpio 0 for smc91x irq\n");
 204                 return;
 205         }
 206
 207         /* Check EMIFS wait states to fix errors with SMC_GET_PKT_HDR */
 208         EMIFS_CCS(1) |= 0x3;
 209 }
 210
 211 static void __init osk_init_cf(void)
 212 {
 213         omap_cfg_reg(M7_1610_GPIO62);
 214         if ((omap_request_gpio(62)) < 0) {
 215                 printk("Error requesting gpio 62 for CF irq\n");
 216                 return;
 217         }
 218         /* the CF I/O IRQ is really active-low */
 219         set_irq_type(OMAP_GPIO_IRQ(62), IRQT_FALLING);
 220 }
 221
 222 static void __init osk_init_irq(void)
 223 {
 224         omap1_init_common_hw();
 225         omap_init_irq();
 226         omap_gpio_init();
 227         osk_init_smc91x();
 228         osk_init_cf();
 229 }
 230
 231 static struct omap_usb_config osk_usb_config __initdata = {
 232         /* has usb host connector (A) ... for development it can also
 233          * be used, with a NONSTANDARD gender-bending cable/dongle, as
 234          * a peripheral.
 235          */
 236 #ifdef  CONFIG_USB_GADGET_OMAP
 237         .register_dev   = 1,
 238         .hmc_mode       = 0,
 239 #else
 240         .register_host  = 1,
 241         .hmc_mode       = 16,
 242         .rwc            = 1,
 243 #endif
 244         .pins[0]        = 2,
 245 };
 246
 247 static struct omap_uart_config osk_uart_config __initdata = {
 248         .enabled_uarts = (1 << 0),
 249 };
 250
 251 #ifdef  CONFIG_OMAP_OSK_MISTRAL
 252 static struct omap_lcd_config osk_lcd_config __initdata = {
 253         .ctrl_name      = "internal",
 254 };
 255 #endif
 256
 257 static struct omap_board_config_kernel osk_config[] = {
 258         { OMAP_TAG_USB,           &osk_usb_config },
 259         { OMAP_TAG_UART,                &osk_uart_config },
 260 #ifdef  CONFIG_OMAP_OSK_MISTRAL
 261         { OMAP_TAG_LCD,                 &osk_lcd_config },
 262 #endif
 263 };
 264
 265 #ifdef  CONFIG_OMAP_OSK_MISTRAL
 266
 267 #include <linux/input.h>
 268 #include <linux/spi/spi.h>
 269 #include <linux/spi/ads7846.h>
 270
 271 #include <asm/arch/keypad.h>
 272
 273 static const int osk_keymap[] = {
 274         /* KEY(col, row, code) */
 275         KEY(0, 0, KEY_F1),              /* SW4 */
 276         KEY(0, 3, KEY_UP),              /* (sw2/up) */
 277         KEY(1, 1, KEY_LEFTCTRL),        /* SW5 */
 278         KEY(1, 2, KEY_LEFT),            /* (sw2/left) */
 279         KEY(2, 0, KEY_SPACE),           /* SW3 */
 280         KEY(2, 1, KEY_ESC),             /* SW6 */
 281         KEY(2, 2, KEY_DOWN),            /* (sw2/down) */
 282         KEY(3, 2, KEY_ENTER),           /* (sw2/select) */
 283         KEY(3, 3, KEY_RIGHT),           /* (sw2/right) */
 284         0
 285 };
 286
 287 static struct omap_kp_platform_data osk_kp_data = {
 288         .rows           = 8,
 289         .cols           = 8,
 290         .keymap         = (int *) osk_keymap,
 291         .keymapsize     = ARRAY_SIZE(osk_keymap),
 292         .delay          = 9,
 293 };
 294
 295 static struct resource osk5912_kp_resources[] = {
 296         [0] = {
 297                 .start  = INT_KEYBOARD,
 298                 .end    = INT_KEYBOARD,
 299                 .flags  = IORESOURCE_IRQ,
 300         },
 301 };
 302
 303 static struct platform_device osk5912_kp_device = {
 304         .name           = "omap-keypad",
 305         .id             = -1,
 306         .dev            = {
 307                 .platform_data = &osk_kp_data,
 308         },
 309         .num_resources  = ARRAY_SIZE(osk5912_kp_resources),
 310         .resource       = osk5912_kp_resources,
 311 };
 312
 313 static struct omap_backlight_config mistral_bl_data = {
 314         .default_intensity      = 0xa0,
 315 };
 316
 317 static struct platform_device mistral_bl_device = {
 318         .name           = "omap-bl",
 319         .id             = -1,
 320         .dev            = {
 321                 .platform_data = &mistral_bl_data,
 322         },
 323 };
 324
 325 static struct platform_device osk5912_lcd_device = {
 326         .name           = "lcd_osk",
 327         .id             = -1,
 328 };
 329
 330 static struct platform_device *mistral_devices[] __initdata = {
 331         &osk5912_kp_device,
 332         &mistral_bl_device,
 333         &osk5912_lcd_device,
 334 };
 335
 336 static int mistral_get_pendown_state(void)
 337 {
 338         return !omap_get_gpio_datain(4);
 339 }
 340
 341 static const struct ads7846_platform_data mistral_ts_info = {
 342         .model                  = 7846,
 343         .vref_delay_usecs       = 100,  /* internal, no capacitor */
 344         .x_plate_ohms           = 419,
 345         .y_plate_ohms           = 486,
 346         .get_pendown_state      = mistral_get_pendown_state,
 347 };
 348
 349 static struct spi_board_info __initdata mistral_boardinfo[] = { {
 350         /* MicroWire (bus 2) CS0 has an ads7846e */
 351         .modalias               = "ads7846",
 352         .platform_data          = &mistral_ts_info,
 353         .irq                    = OMAP_GPIO_IRQ(4),
 354         .max_speed_hz           = 120000 /* max sample rate at 3V */
 355                                         * 26 /* command + data + overhead */,
 356         .bus_num                = 2,
 357         .chip_select            = 0,
 358 } };
 359
 360 #ifdef  CONFIG_PM
 361 static irqreturn_t
 362 osk_mistral_wake_interrupt(int irq, void *ignored)
 363 {
 364         return IRQ_HANDLED;
 365 }
 366 #endif
 367
 368 static void __init osk_mistral_init(void)
 369 {
 370         /* NOTE:  we could actually tell if there's a Mistral board
 371          * attached, e.g. by trying to read something from the ads7846.
 372          * But this arch_init() code is too early for that, since we
 373          * can't talk to the ads or even the i2c eeprom.
 374          */
 375
 376         /* parallel camera interface */
 377         omap_cfg_reg(J15_1610_CAM_LCLK);
 378         omap_cfg_reg(J18_1610_CAM_D7);
 379         omap_cfg_reg(J19_1610_CAM_D6);
 380         omap_cfg_reg(J14_1610_CAM_D5);
 381         omap_cfg_reg(K18_1610_CAM_D4);
 382         omap_cfg_reg(K19_1610_CAM_D3);
 383         omap_cfg_reg(K15_1610_CAM_D2);
 384         omap_cfg_reg(K14_1610_CAM_D1);
 385         omap_cfg_reg(L19_1610_CAM_D0);
 386         omap_cfg_reg(L18_1610_CAM_VS);
 387         omap_cfg_reg(L15_1610_CAM_HS);
 388         omap_cfg_reg(M19_1610_CAM_RSTZ);
 389         omap_cfg_reg(Y15_1610_CAM_OUTCLK);
 390
 391         /* serial camera interface */
 392         omap_cfg_reg(H19_1610_CAM_EXCLK);
 393         omap_cfg_reg(W13_1610_CCP_CLKM);
 394         omap_cfg_reg(Y12_1610_CCP_CLKP);
 395         /* CCP_DATAM CONFLICTS WITH UART1.TX (and serial console) */
 396         // omap_cfg_reg(Y14_1610_CCP_DATAM);
 397         omap_cfg_reg(W14_1610_CCP_DATAP);
 398
 399         /* CAM_PWDN */
 400         if (omap_request_gpio(11) == 0) {
 401                 omap_cfg_reg(N20_1610_GPIO11);
 402                 omap_set_gpio_direction(11, 0 /* out */);
 403                 omap_set_gpio_dataout(11, 0 /* off */);
 404         } else
 405                 pr_debug("OSK+Mistral: CAM_PWDN is awol\n");
 406
 407
 408         // omap_cfg_reg(P19_1610_GPIO6);        // BUSY
 409         omap_cfg_reg(P20_1610_GPIO4);   // PENIRQ
 410         set_irq_type(OMAP_GPIO_IRQ(4), IRQT_FALLING);
 411         spi_register_board_info(mistral_boardinfo,
 412                         ARRAY_SIZE(mistral_boardinfo));
 413
 414         /* the sideways button (SW1) is for use as a "wakeup" button */
 415         omap_cfg_reg(N15_1610_MPUIO2);
 416         if (omap_request_gpio(OMAP_MPUIO(2)) == 0) {
 417                 int ret = 0;
 418                 omap_set_gpio_direction(OMAP_MPUIO(2), 1);
 419                 set_irq_type(OMAP_GPIO_IRQ(OMAP_MPUIO(2)), IRQT_RISING);
 420 #ifdef  CONFIG_PM
 421                 /* share the IRQ in case someone wants to use the
 422                  * button for more than wakeup from system sleep.
 423                  */
 424                 ret = request_irq(OMAP_GPIO_IRQ(OMAP_MPUIO(2)),
 425                                 &osk_mistral_wake_interrupt,
 426                                 IRQF_SHARED, "mistral_wakeup",
 427                                 &osk_mistral_wake_interrupt);
 428                 if (ret != 0) {
 429                         omap_free_gpio(OMAP_MPUIO(2));
 430                         printk(KERN_ERR "OSK+Mistral: no wakeup irq, %d?\n",
 431                                 ret);
 432                 } else
 433                         enable_irq_wake(OMAP_GPIO_IRQ(OMAP_MPUIO(2)));
 434 #endif
 435         } else
 436                 printk(KERN_ERR "OSK+Mistral: wakeup button is awol\n");
 437
 438         /* LCD:  backlight, and power; power controls other devices on the
 439          * board, like the touchscreen, EEPROM, and wakeup (!) switch.
 440          */
 441         omap_cfg_reg(PWL);
 442         if (omap_request_gpio(2) == 0) {
 443                 omap_set_gpio_direction(2, 0 /* out */);
 444                 omap_set_gpio_dataout(2, 1 /* on */);
 445         }
 446
 447         platform_add_devices(mistral_devices, ARRAY_SIZE(mistral_devices));
 448 }
 449 #else
 450 static void __init osk_mistral_init(void) { }
 451 #endif
 452
 453 #define EMIFS_CS3_VAL   (0x88013141)
 454
 455 static void __init osk_init(void)
 456 {
 457         /* Workaround for wrong CS3 (NOR flash) timing
 458          * There are some U-Boot versions out there which configure
 459          * wrong CS3 memory timings. This mainly leads to CRC
 460          * or similar errors if you use NOR flash (e.g. with JFFS2)
 461          */
 462         if (EMIFS_CCS(3) != EMIFS_CS3_VAL)
 463                 EMIFS_CCS(3) = EMIFS_CS3_VAL;
 464
 465         osk_flash_resource.end = osk_flash_resource.start = omap_cs3_phys();
 466         osk_flash_resource.end += SZ_32M - 1;
 467         platform_add_devices(osk5912_devices, ARRAY_SIZE(osk5912_devices));
 468         omap_board_config = osk_config;
 469         omap_board_config_size = ARRAY_SIZE(osk_config);
 470         USB_TRANSCEIVER_CTRL_REG |= (3 << 1);
 471
 472         /* irq for tps65010 chip */
 473         /* bootloader effectively does:  omap_cfg_reg(U19_1610_MPUIO1); */
 474         if (gpio_request(OMAP_MPUIO(1), "tps65010") == 0)
 475                 gpio_direction_input(OMAP_MPUIO(1));
 476
 477         i2c_register_board_info(1, osk_i2c_board_info,
 478                         ARRAY_SIZE(osk_i2c_board_info));
 479
 480         omap_serial_init();
 481         osk_mistral_init();
 482 }
 483
 484 static void __init osk_map_io(void)
 485 {
 486         omap1_map_common_io();
 487 }
 488
 489 #ifdef CONFIG_TPS65010
 490 static int __init osk_tps_init(void)
 491 {
 492         if (!machine_is_omap_osk())
 493                 return 0;
 494
 495         /* Let LED1 (D9) blink */
 496         tps65010_set_led(LED1, BLINK);
 497
 498         /* Disable LED 2 (D2) */
 499         tps65010_set_led(LED2, OFF);
 500
 501         /* Set GPIO 1 HIGH to disable VBUS power supply;
 502          * OHCI driver powers it up/down as needed.
 503          */
 504         tps65010_set_gpio_out_value(GPIO1, HIGH);
 505
 506         /* Set GPIO 2 low to turn on LED D3 */
 507         tps65010_set_gpio_out_value(GPIO2, HIGH);
 508
 509         /* Set GPIO 3 low to take ethernet out of reset */
 510         tps65010_set_gpio_out_value(GPIO3, LOW);
 511
 512         /* gpio4 for VDD_DSP */
 513         /* FIXME send power to DSP iff it's configured */
 514
 515         /* Enable LOW_PWR */
 516         tps65010_set_low_pwr(ON);
 517
 518         /* Switch VLDO2 to 3.0V for AIC23 */
 519         tps65010_config_vregs1(TPS_LDO2_ENABLE | TPS_VLDO2_3_0V
 520                         | TPS_LDO1_ENABLE);
 521
 522         return 0;
 523 }
 524 fs_initcall(osk_tps_init);
 525 #endif
 526
 527 MACHINE_START(OMAP_OSK, "TI-OSK")
 528         /* Maintainer: Dirk Behme <dirk.behme@de.bosch.com> */
 529         .phys_io        = 0xfff00000,
 530         .io_pg_offst    = ((0xfef00000) >> 18) & 0xfffc,
 531         .boot_params    = 0x10000100,
 532         .map_io         = osk_map_io,
 533         .init_irq       = osk_init_irq,
 534         .init_machine   = osk_init,
 535         .timer          = &omap_timer,
 536 MACHINE_END