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 #include <linux/leds.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 | IORESOURCE_IRQ_HIGHEDGE, 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 gpio_led tps_leds[] = { 188 /* NOTE: D9 and D2 have hardware blink support. 189 * Also, D9 requires non-battery power. 190 */ 191 { .gpio = OSK_TPS_GPIO_LED_D9, .name = "d9", }, 192 { .gpio = OSK_TPS_GPIO_LED_D2, .name = "d2", }, 193 { .gpio = OSK_TPS_GPIO_LED_D3, .name = "d3", .active_low = 1, 194 .default_trigger = "heartbeat", }, 195 }; 196 197 static struct gpio_led_platform_data tps_leds_data = { 198 .num_leds = 3, 199 .leds = tps_leds, 200 }; 201 202 static struct platform_device osk5912_tps_leds = { 203 .name = "leds-gpio", 204 .id = 0, 205 .dev.platform_data = &tps_leds_data, 206 }; 207 208 static int osk_tps_setup(struct i2c_client *client, void *context) 209 { 210 /* Set GPIO 1 HIGH to disable VBUS power supply; 211 * OHCI driver powers it up/down as needed. 212 */ 213 gpio_request(OSK_TPS_GPIO_USB_PWR_EN, "n_vbus_en"); 214 gpio_direction_output(OSK_TPS_GPIO_USB_PWR_EN, 1); 215 216 /* Set GPIO 2 high so LED D3 is off by default */ 217 tps65010_set_gpio_out_value(GPIO2, HIGH); 218 219 /* Set GPIO 3 low to take ethernet out of reset */ 220 gpio_request(OSK_TPS_GPIO_LAN_RESET, "smc_reset"); 221 gpio_direction_output(OSK_TPS_GPIO_LAN_RESET, 0); 222 223 /* GPIO4 is VDD_DSP */ 224 gpio_request(OSK_TPS_GPIO_DSP_PWR_EN, "dsp_power"); 225 gpio_direction_output(OSK_TPS_GPIO_DSP_PWR_EN, 1); 226 /* REVISIT if DSP support isn't configured, power it off ... */ 227 228 /* Let LED1 (D9) blink; leds-gpio may override it */ 229 tps65010_set_led(LED1, BLINK); 230 231 /* Set LED2 off by default */ 232 tps65010_set_led(LED2, OFF); 233 234 /* Enable LOW_PWR handshake */ 235 tps65010_set_low_pwr(ON); 236 237 /* Switch VLDO2 to 3.0V for AIC23 */ 238 tps65010_config_vregs1(TPS_LDO2_ENABLE | TPS_VLDO2_3_0V 239 | TPS_LDO1_ENABLE); 240 241 /* register these three LEDs */ 242 osk5912_tps_leds.dev.parent = &client->dev; 243 platform_device_register(&osk5912_tps_leds); 244 245 return 0; 246 } 247 248 static struct tps65010_board tps_board = { 249 .base = OSK_TPS_GPIO_BASE, 250 .outmask = 0x0f, 251 .setup = osk_tps_setup, 252 }; 253 254 static struct i2c_board_info __initdata osk_i2c_board_info[] = { 255 { 256 I2C_BOARD_INFO("tps65010", 0x48), 257 .irq = OMAP_GPIO_IRQ(OMAP_MPUIO(1)), 258 .platform_data = &tps_board, 259 260 }, 261 /* TODO when driver support is ready: 262 * - aic23 audio chip at 0x1a 263 * - on Mistral, 24c04 eeprom at 0x50 264 * - optionally on Mistral, ov9640 camera sensor at 0x30 265 */ 266 }; 267 268 static void __init osk_init_smc91x(void) 269 { 270 u32 l; 271 272 if ((gpio_request(0, "smc_irq")) < 0) { 273 printk("Error requesting gpio 0 for smc91x irq\n"); 274 return; 275 } 276 277 /* Check EMIFS wait states to fix errors with SMC_GET_PKT_HDR */ 278 l = omap_readl(EMIFS_CCS(1)); 279 l |= 0x3; 280 omap_writel(l, EMIFS_CCS(1)); 281 } 282 283 static void __init osk_init_cf(void) 284 { 285 omap_cfg_reg(M7_1610_GPIO62); 286 if ((gpio_request(62, "cf_irq")) < 0) { 287 printk("Error requesting gpio 62 for CF irq\n"); 288 return; 289 } 290 /* the CF I/O IRQ is really active-low */ 291 set_irq_type(OMAP_GPIO_IRQ(62), IRQT_FALLING); 292 } 293 294 static void __init osk_init_irq(void) 295 { 296 omap1_init_common_hw(); 297 omap_init_irq(); 298 omap_gpio_init(); 299 osk_init_smc91x(); 300 osk_init_cf(); 301 } 302 303 static struct omap_usb_config osk_usb_config __initdata = { 304 /* has usb host connector (A) ... for development it can also 305 * be used, with a NONSTANDARD gender-bending cable/dongle, as 306 * a peripheral. 307 */ 308 #ifdef CONFIG_USB_GADGET_OMAP 309 .register_dev = 1, 310 .hmc_mode = 0, 311 #else 312 .register_host = 1, 313 .hmc_mode = 16, 314 .rwc = 1, 315 #endif 316 .pins[0] = 2, 317 }; 318 319 static struct omap_uart_config osk_uart_config __initdata = { 320 .enabled_uarts = (1 << 0), 321 }; 322 323 #ifdef CONFIG_OMAP_OSK_MISTRAL 324 static struct omap_lcd_config osk_lcd_config __initdata = { 325 .ctrl_name = "internal", 326 }; 327 #endif 328 329 static struct omap_board_config_kernel osk_config[] __initdata = { 330 { OMAP_TAG_USB, &osk_usb_config }, 331 { OMAP_TAG_UART, &osk_uart_config }, 332 #ifdef CONFIG_OMAP_OSK_MISTRAL 333 { OMAP_TAG_LCD, &osk_lcd_config }, 334 #endif 335 }; 336 337 #ifdef CONFIG_OMAP_OSK_MISTRAL 338 339 #include <linux/input.h> 340 #include <linux/spi/spi.h> 341 #include <linux/spi/ads7846.h> 342 343 #include <asm/arch/keypad.h> 344 345 static const int osk_keymap[] = { 346 /* KEY(col, row, code) */ 347 KEY(0, 0, KEY_F1), /* SW4 */ 348 KEY(0, 3, KEY_UP), /* (sw2/up) */ 349 KEY(1, 1, KEY_LEFTCTRL), /* SW5 */ 350 KEY(1, 2, KEY_LEFT), /* (sw2/left) */ 351 KEY(2, 0, KEY_SPACE), /* SW3 */ 352 KEY(2, 1, KEY_ESC), /* SW6 */ 353 KEY(2, 2, KEY_DOWN), /* (sw2/down) */ 354 KEY(3, 2, KEY_ENTER), /* (sw2/select) */ 355 KEY(3, 3, KEY_RIGHT), /* (sw2/right) */ 356 0 357 }; 358 359 static struct omap_kp_platform_data osk_kp_data = { 360 .rows = 8, 361 .cols = 8, 362 .keymap = (int *) osk_keymap, 363 .keymapsize = ARRAY_SIZE(osk_keymap), 364 .delay = 9, 365 }; 366 367 static struct resource osk5912_kp_resources[] = { 368 [0] = { 369 .start = INT_KEYBOARD, 370 .end = INT_KEYBOARD, 371 .flags = IORESOURCE_IRQ, 372 }, 373 }; 374 375 static struct platform_device osk5912_kp_device = { 376 .name = "omap-keypad", 377 .id = -1, 378 .dev = { 379 .platform_data = &osk_kp_data, 380 }, 381 .num_resources = ARRAY_SIZE(osk5912_kp_resources), 382 .resource = osk5912_kp_resources, 383 }; 384 385 static struct omap_backlight_config mistral_bl_data = { 386 .default_intensity = 0xa0, 387 }; 388 389 static struct platform_device mistral_bl_device = { 390 .name = "omap-bl", 391 .id = -1, 392 .dev = { 393 .platform_data = &mistral_bl_data, 394 }, 395 }; 396 397 static struct platform_device osk5912_lcd_device = { 398 .name = "lcd_osk", 399 .id = -1, 400 }; 401 402 static struct platform_device *mistral_devices[] __initdata = { 403 &osk5912_kp_device, 404 &mistral_bl_device, 405 &osk5912_lcd_device, 406 }; 407 408 static int mistral_get_pendown_state(void) 409 { 410 return !gpio_get_value(4); 411 } 412 413 static const struct ads7846_platform_data mistral_ts_info = { 414 .model = 7846, 415 .vref_delay_usecs = 100, /* internal, no capacitor */ 416 .x_plate_ohms = 419, 417 .y_plate_ohms = 486, 418 .get_pendown_state = mistral_get_pendown_state, 419 }; 420 421 static struct spi_board_info __initdata mistral_boardinfo[] = { { 422 /* MicroWire (bus 2) CS0 has an ads7846e */ 423 .modalias = "ads7846", 424 .platform_data = &mistral_ts_info, 425 .irq = OMAP_GPIO_IRQ(4), 426 .max_speed_hz = 120000 /* max sample rate at 3V */ 427 * 26 /* command + data + overhead */, 428 .bus_num = 2, 429 .chip_select = 0, 430 } }; 431 432 #ifdef CONFIG_PM 433 static irqreturn_t 434 osk_mistral_wake_interrupt(int irq, void *ignored) 435 { 436 return IRQ_HANDLED; 437 } 438 #endif 439 440 static void __init osk_mistral_init(void) 441 { 442 /* NOTE: we could actually tell if there's a Mistral board 443 * attached, e.g. by trying to read something from the ads7846. 444 * But this arch_init() code is too early for that, since we 445 * can't talk to the ads or even the i2c eeprom. 446 */ 447 448 /* parallel camera interface */ 449 omap_cfg_reg(J15_1610_CAM_LCLK); 450 omap_cfg_reg(J18_1610_CAM_D7); 451 omap_cfg_reg(J19_1610_CAM_D6); 452 omap_cfg_reg(J14_1610_CAM_D5); 453 omap_cfg_reg(K18_1610_CAM_D4); 454 omap_cfg_reg(K19_1610_CAM_D3); 455 omap_cfg_reg(K15_1610_CAM_D2); 456 omap_cfg_reg(K14_1610_CAM_D1); 457 omap_cfg_reg(L19_1610_CAM_D0); 458 omap_cfg_reg(L18_1610_CAM_VS); 459 omap_cfg_reg(L15_1610_CAM_HS); 460 omap_cfg_reg(M19_1610_CAM_RSTZ); 461 omap_cfg_reg(Y15_1610_CAM_OUTCLK); 462 463 /* serial camera interface */ 464 omap_cfg_reg(H19_1610_CAM_EXCLK); 465 omap_cfg_reg(W13_1610_CCP_CLKM); 466 omap_cfg_reg(Y12_1610_CCP_CLKP); 467 /* CCP_DATAM CONFLICTS WITH UART1.TX (and serial console) */ 468 /* omap_cfg_reg(Y14_1610_CCP_DATAM); */ 469 omap_cfg_reg(W14_1610_CCP_DATAP); 470 471 /* CAM_PWDN */ 472 if (gpio_request(11, "cam_pwdn") == 0) { 473 omap_cfg_reg(N20_1610_GPIO11); 474 gpio_direction_output(11, 0); 475 } else 476 pr_debug("OSK+Mistral: CAM_PWDN is awol\n"); 477 478 479 /* omap_cfg_reg(P19_1610_GPIO6); */ /* BUSY */ 480 gpio_request(6, "ts_busy"); 481 gpio_direction_input(6); 482 483 omap_cfg_reg(P20_1610_GPIO4); /* PENIRQ */ 484 gpio_request(4, "ts_int"); 485 gpio_direction_input(4); 486 set_irq_type(OMAP_GPIO_IRQ(4), IRQT_FALLING); 487 488 spi_register_board_info(mistral_boardinfo, 489 ARRAY_SIZE(mistral_boardinfo)); 490 491 /* the sideways button (SW1) is for use as a "wakeup" button */ 492 omap_cfg_reg(N15_1610_MPUIO2); 493 if (gpio_request(OMAP_MPUIO(2), "wakeup") == 0) { 494 int ret = 0; 495 496 gpio_direction_input(OMAP_MPUIO(2)); 497 set_irq_type(OMAP_GPIO_IRQ(OMAP_MPUIO(2)), IRQT_RISING); 498 #ifdef CONFIG_PM 499 /* share the IRQ in case someone wants to use the 500 * button for more than wakeup from system sleep. 501 */ 502 ret = request_irq(OMAP_GPIO_IRQ(OMAP_MPUIO(2)), 503 &osk_mistral_wake_interrupt, 504 IRQF_SHARED, "mistral_wakeup", 505 &osk_mistral_wake_interrupt); 506 if (ret != 0) { 507 gpio_free(OMAP_MPUIO(2)); 508 printk(KERN_ERR "OSK+Mistral: no wakeup irq, %d?\n", 509 ret); 510 } else 511 enable_irq_wake(OMAP_GPIO_IRQ(OMAP_MPUIO(2))); 512 #endif 513 } else 514 printk(KERN_ERR "OSK+Mistral: wakeup button is awol\n"); 515 516 /* LCD: backlight, and power; power controls other devices on the 517 * board, like the touchscreen, EEPROM, and wakeup (!) switch. 518 */ 519 omap_cfg_reg(PWL); 520 if (gpio_request(2, "lcd_pwr") == 0) 521 gpio_direction_output(2, 1); 522 523 platform_add_devices(mistral_devices, ARRAY_SIZE(mistral_devices)); 524 } 525 #else 526 static void __init osk_mistral_init(void) { } 527 #endif 528 529 #define EMIFS_CS3_VAL (0x88013141) 530 531 static void __init osk_init(void) 532 { 533 u32 l; 534 535 /* Workaround for wrong CS3 (NOR flash) timing 536 * There are some U-Boot versions out there which configure 537 * wrong CS3 memory timings. This mainly leads to CRC 538 * or similar errors if you use NOR flash (e.g. with JFFS2) 539 */ 540 l = omap_readl(EMIFS_CCS(3)); 541 if (l != EMIFS_CS3_VAL) 542 omap_writel(EMIFS_CS3_VAL, EMIFS_CCS(3)); 543 544 osk_flash_resource.end = osk_flash_resource.start = omap_cs3_phys(); 545 osk_flash_resource.end += SZ_32M - 1; 546 platform_add_devices(osk5912_devices, ARRAY_SIZE(osk5912_devices)); 547 omap_board_config = osk_config; 548 omap_board_config_size = ARRAY_SIZE(osk_config); 549 550 l = omap_readl(USB_TRANSCEIVER_CTRL); 551 l |= (3 << 1); 552 omap_writel(l, USB_TRANSCEIVER_CTRL); 553 554 /* irq for tps65010 chip */ 555 /* bootloader effectively does: omap_cfg_reg(U19_1610_MPUIO1); */ 556 if (gpio_request(OMAP_MPUIO(1), "tps65010") == 0) 557 gpio_direction_input(OMAP_MPUIO(1)); 558 559 omap_serial_init(); 560 omap_register_i2c_bus(1, 400, osk_i2c_board_info, 561 ARRAY_SIZE(osk_i2c_board_info)); 562 osk_mistral_init(); 563 } 564 565 static void __init osk_map_io(void) 566 { 567 omap1_map_common_io(); 568 } 569 570 MACHINE_START(OMAP_OSK, "TI-OSK") 571 /* Maintainer: Dirk Behme <dirk.behme@de.bosch.com> */ 572 .phys_io = 0xfff00000, 573 .io_pg_offst = ((0xfef00000) >> 18) & 0xfffc, 574 .boot_params = 0x10000100, 575 .map_io = osk_map_io, 576 .init_irq = osk_init_irq, 577 .init_machine = osk_init, 578 .timer = &omap_timer, 579 MACHINE_END 580