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