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