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 #include <linux/gpio.h> 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 #include <linux/smc91x.h> 37 #include <linux/omapfb.h> 38 #include <linux/mtd/mtd.h> 39 #include <linux/mtd/partitions.h> 40 #include <linux/mtd/physmap.h> 41 #include <linux/i2c/tps65010.h> 42 #include <linux/platform_data/gpio-omap.h> 43 #include <linux/platform_data/omap1_bl.h> 44 45 #include <asm/mach-types.h> 46 #include <asm/mach/arch.h> 47 #include <asm/mach/map.h> 48 49 #include <mach/flash.h> 50 #include <mach/mux.h> 51 #include <mach/tc.h> 52 53 #include <mach/hardware.h> 54 #include <mach/usb.h> 55 56 #include "common.h" 57 58 /* At OMAP5912 OSK the Ethernet is directly connected to CS1 */ 59 #define OMAP_OSK_ETHR_START 0x04800300 60 61 /* TPS65010 has four GPIOs. nPG and LED2 can be treated like GPIOs with 62 * alternate pin configurations for hardware-controlled blinking. 63 */ 64 #define OSK_TPS_GPIO_BASE (OMAP_MAX_GPIO_LINES + 16 /* MPUIO */) 65 # define OSK_TPS_GPIO_USB_PWR_EN (OSK_TPS_GPIO_BASE + 0) 66 # define OSK_TPS_GPIO_LED_D3 (OSK_TPS_GPIO_BASE + 1) 67 # define OSK_TPS_GPIO_LAN_RESET (OSK_TPS_GPIO_BASE + 2) 68 # define OSK_TPS_GPIO_DSP_PWR_EN (OSK_TPS_GPIO_BASE + 3) 69 # define OSK_TPS_GPIO_LED_D9 (OSK_TPS_GPIO_BASE + 4) 70 # define OSK_TPS_GPIO_LED_D2 (OSK_TPS_GPIO_BASE + 5) 71 72 static struct mtd_partition osk_partitions[] = { 73 /* bootloader (U-Boot, etc) in first sector */ 74 { 75 .name = "bootloader", 76 .offset = 0, 77 .size = SZ_128K, 78 .mask_flags = MTD_WRITEABLE, /* force read-only */ 79 }, 80 /* bootloader params in the next sector */ 81 { 82 .name = "params", 83 .offset = MTDPART_OFS_APPEND, 84 .size = SZ_128K, 85 .mask_flags = 0, 86 }, { 87 .name = "kernel", 88 .offset = MTDPART_OFS_APPEND, 89 .size = SZ_2M, 90 .mask_flags = 0 91 }, { 92 .name = "filesystem", 93 .offset = MTDPART_OFS_APPEND, 94 .size = MTDPART_SIZ_FULL, 95 .mask_flags = 0 96 } 97 }; 98 99 static struct physmap_flash_data osk_flash_data = { 100 .width = 2, 101 .set_vpp = omap1_set_vpp, 102 .parts = osk_partitions, 103 .nr_parts = ARRAY_SIZE(osk_partitions), 104 }; 105 106 static struct resource osk_flash_resource = { 107 /* this is on CS3, wherever it's mapped */ 108 .flags = IORESOURCE_MEM, 109 }; 110 111 static struct platform_device osk5912_flash_device = { 112 .name = "physmap-flash", 113 .id = 0, 114 .dev = { 115 .platform_data = &osk_flash_data, 116 }, 117 .num_resources = 1, 118 .resource = &osk_flash_resource, 119 }; 120 121 static struct smc91x_platdata osk5912_smc91x_info = { 122 .flags = SMC91X_USE_16BIT | SMC91X_NOWAIT, 123 .leda = RPC_LED_100_10, 124 .ledb = RPC_LED_TX_RX, 125 }; 126 127 static struct resource osk5912_smc91x_resources[] = { 128 [0] = { 129 .start = OMAP_OSK_ETHR_START, /* Physical */ 130 .end = OMAP_OSK_ETHR_START + 0xf, 131 .flags = IORESOURCE_MEM, 132 }, 133 [1] = { 134 .flags = IORESOURCE_IRQ | IORESOURCE_IRQ_HIGHEDGE, 135 }, 136 }; 137 138 static struct platform_device osk5912_smc91x_device = { 139 .name = "smc91x", 140 .id = -1, 141 .dev = { 142 .platform_data = &osk5912_smc91x_info, 143 }, 144 .num_resources = ARRAY_SIZE(osk5912_smc91x_resources), 145 .resource = osk5912_smc91x_resources, 146 }; 147 148 static struct resource osk5912_cf_resources[] = { 149 [0] = { 150 .flags = IORESOURCE_IRQ, 151 }, 152 }; 153 154 static struct platform_device osk5912_cf_device = { 155 .name = "omap_cf", 156 .id = -1, 157 .dev = { 158 .platform_data = (void *) 2 /* CS2 */, 159 }, 160 .num_resources = ARRAY_SIZE(osk5912_cf_resources), 161 .resource = osk5912_cf_resources, 162 }; 163 164 static struct platform_device *osk5912_devices[] __initdata = { 165 &osk5912_flash_device, 166 &osk5912_smc91x_device, 167 &osk5912_cf_device, 168 }; 169 170 static struct gpio_led tps_leds[] = { 171 /* NOTE: D9 and D2 have hardware blink support. 172 * Also, D9 requires non-battery power. 173 */ 174 { .gpio = OSK_TPS_GPIO_LED_D9, .name = "d9", 175 .default_trigger = "ide-disk", }, 176 { .gpio = OSK_TPS_GPIO_LED_D2, .name = "d2", }, 177 { .gpio = OSK_TPS_GPIO_LED_D3, .name = "d3", .active_low = 1, 178 .default_trigger = "heartbeat", }, 179 }; 180 181 static struct gpio_led_platform_data tps_leds_data = { 182 .num_leds = 3, 183 .leds = tps_leds, 184 }; 185 186 static struct platform_device osk5912_tps_leds = { 187 .name = "leds-gpio", 188 .id = 0, 189 .dev.platform_data = &tps_leds_data, 190 }; 191 192 static int osk_tps_setup(struct i2c_client *client, void *context) 193 { 194 /* Set GPIO 1 HIGH to disable VBUS power supply; 195 * OHCI driver powers it up/down as needed. 196 */ 197 gpio_request(OSK_TPS_GPIO_USB_PWR_EN, "n_vbus_en"); 198 gpio_direction_output(OSK_TPS_GPIO_USB_PWR_EN, 1); 199 200 /* Set GPIO 2 high so LED D3 is off by default */ 201 tps65010_set_gpio_out_value(GPIO2, HIGH); 202 203 /* Set GPIO 3 low to take ethernet out of reset */ 204 gpio_request(OSK_TPS_GPIO_LAN_RESET, "smc_reset"); 205 gpio_direction_output(OSK_TPS_GPIO_LAN_RESET, 0); 206 207 /* GPIO4 is VDD_DSP */ 208 gpio_request(OSK_TPS_GPIO_DSP_PWR_EN, "dsp_power"); 209 gpio_direction_output(OSK_TPS_GPIO_DSP_PWR_EN, 1); 210 /* REVISIT if DSP support isn't configured, power it off ... */ 211 212 /* Let LED1 (D9) blink; leds-gpio may override it */ 213 tps65010_set_led(LED1, BLINK); 214 215 /* Set LED2 off by default */ 216 tps65010_set_led(LED2, OFF); 217 218 /* Enable LOW_PWR handshake */ 219 tps65010_set_low_pwr(ON); 220 221 /* Switch VLDO2 to 3.0V for AIC23 */ 222 tps65010_config_vregs1(TPS_LDO2_ENABLE | TPS_VLDO2_3_0V 223 | TPS_LDO1_ENABLE); 224 225 /* register these three LEDs */ 226 osk5912_tps_leds.dev.parent = &client->dev; 227 platform_device_register(&osk5912_tps_leds); 228 229 return 0; 230 } 231 232 static struct tps65010_board tps_board = { 233 .base = OSK_TPS_GPIO_BASE, 234 .outmask = 0x0f, 235 .setup = osk_tps_setup, 236 }; 237 238 static struct i2c_board_info __initdata osk_i2c_board_info[] = { 239 { 240 I2C_BOARD_INFO("tps65010", 0x48), 241 .platform_data = &tps_board, 242 243 }, 244 { 245 I2C_BOARD_INFO("tlv320aic23", 0x1B), 246 }, 247 /* TODO when driver support is ready: 248 * - optionally on Mistral, ov9640 camera sensor at 0x30 249 */ 250 }; 251 252 static void __init osk_init_smc91x(void) 253 { 254 u32 l; 255 256 if ((gpio_request(0, "smc_irq")) < 0) { 257 printk("Error requesting gpio 0 for smc91x irq\n"); 258 return; 259 } 260 261 /* Check EMIFS wait states to fix errors with SMC_GET_PKT_HDR */ 262 l = omap_readl(EMIFS_CCS(1)); 263 l |= 0x3; 264 omap_writel(l, EMIFS_CCS(1)); 265 } 266 267 static void __init osk_init_cf(void) 268 { 269 omap_cfg_reg(M7_1610_GPIO62); 270 if ((gpio_request(62, "cf_irq")) < 0) { 271 printk("Error requesting gpio 62 for CF irq\n"); 272 return; 273 } 274 /* the CF I/O IRQ is really active-low */ 275 irq_set_irq_type(gpio_to_irq(62), IRQ_TYPE_EDGE_FALLING); 276 } 277 278 static struct omap_usb_config osk_usb_config __initdata = { 279 /* has usb host connector (A) ... for development it can also 280 * be used, with a NONSTANDARD gender-bending cable/dongle, as 281 * a peripheral. 282 */ 283 #ifdef CONFIG_USB_GADGET_OMAP 284 .register_dev = 1, 285 .hmc_mode = 0, 286 #else 287 .register_host = 1, 288 .hmc_mode = 16, 289 .rwc = 1, 290 #endif 291 .pins[0] = 2, 292 }; 293 294 #ifdef CONFIG_OMAP_OSK_MISTRAL 295 static struct omap_lcd_config osk_lcd_config __initdata = { 296 .ctrl_name = "internal", 297 }; 298 #endif 299 300 #ifdef CONFIG_OMAP_OSK_MISTRAL 301 302 #include <linux/input.h> 303 #include <linux/i2c/at24.h> 304 #include <linux/spi/spi.h> 305 #include <linux/spi/ads7846.h> 306 307 #include <linux/platform_data/keypad-omap.h> 308 309 static struct at24_platform_data at24c04 = { 310 .byte_len = SZ_4K / 8, 311 .page_size = 16, 312 }; 313 314 static struct i2c_board_info __initdata mistral_i2c_board_info[] = { 315 { 316 /* NOTE: powered from LCD supply */ 317 I2C_BOARD_INFO("24c04", 0x50), 318 .platform_data = &at24c04, 319 }, 320 /* TODO when driver support is ready: 321 * - optionally ov9640 camera sensor at 0x30 322 */ 323 }; 324 325 static const unsigned int osk_keymap[] = { 326 /* KEY(col, row, code) */ 327 KEY(0, 0, KEY_F1), /* SW4 */ 328 KEY(3, 0, KEY_UP), /* (sw2/up) */ 329 KEY(1, 1, KEY_LEFTCTRL), /* SW5 */ 330 KEY(2, 1, KEY_LEFT), /* (sw2/left) */ 331 KEY(0, 2, KEY_SPACE), /* SW3 */ 332 KEY(1, 2, KEY_ESC), /* SW6 */ 333 KEY(2, 2, KEY_DOWN), /* (sw2/down) */ 334 KEY(2, 3, KEY_ENTER), /* (sw2/select) */ 335 KEY(3, 3, KEY_RIGHT), /* (sw2/right) */ 336 }; 337 338 static const struct matrix_keymap_data osk_keymap_data = { 339 .keymap = osk_keymap, 340 .keymap_size = ARRAY_SIZE(osk_keymap), 341 }; 342 343 static struct omap_kp_platform_data osk_kp_data = { 344 .rows = 8, 345 .cols = 8, 346 .keymap_data = &osk_keymap_data, 347 .delay = 9, 348 }; 349 350 static struct resource osk5912_kp_resources[] = { 351 [0] = { 352 .start = INT_KEYBOARD, 353 .end = INT_KEYBOARD, 354 .flags = IORESOURCE_IRQ, 355 }, 356 }; 357 358 static struct platform_device osk5912_kp_device = { 359 .name = "omap-keypad", 360 .id = -1, 361 .dev = { 362 .platform_data = &osk_kp_data, 363 }, 364 .num_resources = ARRAY_SIZE(osk5912_kp_resources), 365 .resource = osk5912_kp_resources, 366 }; 367 368 static struct omap_backlight_config mistral_bl_data = { 369 .default_intensity = 0xa0, 370 }; 371 372 static struct platform_device mistral_bl_device = { 373 .name = "omap-bl", 374 .id = -1, 375 .dev = { 376 .platform_data = &mistral_bl_data, 377 }, 378 }; 379 380 static struct platform_device osk5912_lcd_device = { 381 .name = "lcd_osk", 382 .id = -1, 383 }; 384 385 static struct gpio_led mistral_gpio_led_pins[] = { 386 { 387 .name = "mistral:red", 388 .default_trigger = "heartbeat", 389 .gpio = 3, 390 }, 391 { 392 .name = "mistral:green", 393 .default_trigger = "cpu0", 394 .gpio = OMAP_MPUIO(4), 395 }, 396 }; 397 398 static struct gpio_led_platform_data mistral_gpio_led_data = { 399 .leds = mistral_gpio_led_pins, 400 .num_leds = ARRAY_SIZE(mistral_gpio_led_pins), 401 }; 402 403 static struct platform_device mistral_gpio_leds = { 404 .name = "leds-gpio", 405 .id = -1, 406 .dev = { 407 .platform_data = &mistral_gpio_led_data, 408 }, 409 }; 410 411 static struct platform_device *mistral_devices[] __initdata = { 412 &osk5912_kp_device, 413 &mistral_bl_device, 414 &osk5912_lcd_device, 415 &mistral_gpio_leds, 416 }; 417 418 static int mistral_get_pendown_state(void) 419 { 420 return !gpio_get_value(4); 421 } 422 423 static const struct ads7846_platform_data mistral_ts_info = { 424 .model = 7846, 425 .vref_delay_usecs = 100, /* internal, no capacitor */ 426 .x_plate_ohms = 419, 427 .y_plate_ohms = 486, 428 .get_pendown_state = mistral_get_pendown_state, 429 }; 430 431 static struct spi_board_info __initdata mistral_boardinfo[] = { { 432 /* MicroWire (bus 2) CS0 has an ads7846e */ 433 .modalias = "ads7846", 434 .platform_data = &mistral_ts_info, 435 .max_speed_hz = 120000 /* max sample rate at 3V */ 436 * 26 /* command + data + overhead */, 437 .bus_num = 2, 438 .chip_select = 0, 439 } }; 440 441 #ifdef CONFIG_PM 442 static irqreturn_t 443 osk_mistral_wake_interrupt(int irq, void *ignored) 444 { 445 return IRQ_HANDLED; 446 } 447 #endif 448 449 static void __init osk_mistral_init(void) 450 { 451 /* NOTE: we could actually tell if there's a Mistral board 452 * attached, e.g. by trying to read something from the ads7846. 453 * But this arch_init() code is too early for that, since we 454 * can't talk to the ads or even the i2c eeprom. 455 */ 456 457 /* parallel camera interface */ 458 omap_cfg_reg(J15_1610_CAM_LCLK); 459 omap_cfg_reg(J18_1610_CAM_D7); 460 omap_cfg_reg(J19_1610_CAM_D6); 461 omap_cfg_reg(J14_1610_CAM_D5); 462 omap_cfg_reg(K18_1610_CAM_D4); 463 omap_cfg_reg(K19_1610_CAM_D3); 464 omap_cfg_reg(K15_1610_CAM_D2); 465 omap_cfg_reg(K14_1610_CAM_D1); 466 omap_cfg_reg(L19_1610_CAM_D0); 467 omap_cfg_reg(L18_1610_CAM_VS); 468 omap_cfg_reg(L15_1610_CAM_HS); 469 omap_cfg_reg(M19_1610_CAM_RSTZ); 470 omap_cfg_reg(Y15_1610_CAM_OUTCLK); 471 472 /* serial camera interface */ 473 omap_cfg_reg(H19_1610_CAM_EXCLK); 474 omap_cfg_reg(W13_1610_CCP_CLKM); 475 omap_cfg_reg(Y12_1610_CCP_CLKP); 476 /* CCP_DATAM CONFLICTS WITH UART1.TX (and serial console) */ 477 /* omap_cfg_reg(Y14_1610_CCP_DATAM); */ 478 omap_cfg_reg(W14_1610_CCP_DATAP); 479 480 /* CAM_PWDN */ 481 if (gpio_request(11, "cam_pwdn") == 0) { 482 omap_cfg_reg(N20_1610_GPIO11); 483 gpio_direction_output(11, 0); 484 } else 485 pr_debug("OSK+Mistral: CAM_PWDN is awol\n"); 486 487 488 /* omap_cfg_reg(P19_1610_GPIO6); */ /* BUSY */ 489 gpio_request(6, "ts_busy"); 490 gpio_direction_input(6); 491 492 omap_cfg_reg(P20_1610_GPIO4); /* PENIRQ */ 493 gpio_request(4, "ts_int"); 494 gpio_direction_input(4); 495 irq_set_irq_type(gpio_to_irq(4), IRQ_TYPE_EDGE_FALLING); 496 497 mistral_boardinfo[0].irq = gpio_to_irq(4); 498 spi_register_board_info(mistral_boardinfo, 499 ARRAY_SIZE(mistral_boardinfo)); 500 501 /* the sideways button (SW1) is for use as a "wakeup" button 502 * 503 * NOTE: The Mistral board has the wakeup button (SW1) wired 504 * to the LCD 3.3V rail, which is powered down during suspend. 505 * To allow this button to wake up the omap, work around this 506 * HW bug by rewiring SW1 to use the main 3.3V rail. 507 */ 508 omap_cfg_reg(N15_1610_MPUIO2); 509 if (gpio_request(OMAP_MPUIO(2), "wakeup") == 0) { 510 int ret = 0; 511 int irq = gpio_to_irq(OMAP_MPUIO(2)); 512 513 gpio_direction_input(OMAP_MPUIO(2)); 514 irq_set_irq_type(irq, IRQ_TYPE_EDGE_RISING); 515 #ifdef CONFIG_PM 516 /* share the IRQ in case someone wants to use the 517 * button for more than wakeup from system sleep. 518 */ 519 ret = request_irq(irq, 520 &osk_mistral_wake_interrupt, 521 IRQF_SHARED, "mistral_wakeup", 522 &osk_mistral_wake_interrupt); 523 if (ret != 0) { 524 gpio_free(OMAP_MPUIO(2)); 525 printk(KERN_ERR "OSK+Mistral: no wakeup irq, %d?\n", 526 ret); 527 } else 528 enable_irq_wake(irq); 529 #endif 530 } else 531 printk(KERN_ERR "OSK+Mistral: wakeup button is awol\n"); 532 533 /* LCD: backlight, and power; power controls other devices on the 534 * board, like the touchscreen, EEPROM, and wakeup (!) switch. 535 */ 536 omap_cfg_reg(PWL); 537 if (gpio_request(2, "lcd_pwr") == 0) 538 gpio_direction_output(2, 1); 539 540 /* 541 * GPIO based LEDs 542 */ 543 omap_cfg_reg(P18_1610_GPIO3); 544 omap_cfg_reg(MPUIO4); 545 546 i2c_register_board_info(1, mistral_i2c_board_info, 547 ARRAY_SIZE(mistral_i2c_board_info)); 548 549 platform_add_devices(mistral_devices, ARRAY_SIZE(mistral_devices)); 550 } 551 #else 552 static void __init osk_mistral_init(void) { } 553 #endif 554 555 #define EMIFS_CS3_VAL (0x88013141) 556 557 static void __init osk_init(void) 558 { 559 u32 l; 560 561 osk_init_smc91x(); 562 osk_init_cf(); 563 564 /* Workaround for wrong CS3 (NOR flash) timing 565 * There are some U-Boot versions out there which configure 566 * wrong CS3 memory timings. This mainly leads to CRC 567 * or similar errors if you use NOR flash (e.g. with JFFS2) 568 */ 569 l = omap_readl(EMIFS_CCS(3)); 570 if (l != EMIFS_CS3_VAL) 571 omap_writel(EMIFS_CS3_VAL, EMIFS_CCS(3)); 572 573 osk_flash_resource.end = osk_flash_resource.start = omap_cs3_phys(); 574 osk_flash_resource.end += SZ_32M - 1; 575 osk5912_smc91x_resources[1].start = gpio_to_irq(0); 576 osk5912_smc91x_resources[1].end = gpio_to_irq(0); 577 osk5912_cf_resources[0].start = gpio_to_irq(62); 578 osk5912_cf_resources[0].end = gpio_to_irq(62); 579 platform_add_devices(osk5912_devices, ARRAY_SIZE(osk5912_devices)); 580 581 l = omap_readl(USB_TRANSCEIVER_CTRL); 582 l |= (3 << 1); 583 omap_writel(l, USB_TRANSCEIVER_CTRL); 584 585 omap1_usb_init(&osk_usb_config); 586 587 /* irq for tps65010 chip */ 588 /* bootloader effectively does: omap_cfg_reg(U19_1610_MPUIO1); */ 589 if (gpio_request(OMAP_MPUIO(1), "tps65010") == 0) 590 gpio_direction_input(OMAP_MPUIO(1)); 591 592 omap_serial_init(); 593 osk_i2c_board_info[0].irq = gpio_to_irq(OMAP_MPUIO(1)); 594 omap_register_i2c_bus(1, 400, osk_i2c_board_info, 595 ARRAY_SIZE(osk_i2c_board_info)); 596 osk_mistral_init(); 597 598 #ifdef CONFIG_OMAP_OSK_MISTRAL 599 omapfb_set_lcd_config(&osk_lcd_config); 600 #endif 601 602 } 603 604 MACHINE_START(OMAP_OSK, "TI-OSK") 605 /* Maintainer: Dirk Behme <dirk.behme@de.bosch.com> */ 606 .atag_offset = 0x100, 607 .map_io = omap16xx_map_io, 608 .init_early = omap1_init_early, 609 .init_irq = omap1_init_irq, 610 .init_machine = osk_init, 611 .init_late = omap1_init_late, 612 .timer = &omap1_timer, 613 .restart = omap1_restart, 614 MACHINE_END 615