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 <mach/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 <mach/usb.h> 51 #include <mach/mux.h> 52 #include <mach/tc.h> 53 #include <mach/common.h> 54 55 /* At OMAP5912 OSK the Ethernet is directly connected to CS1 */ 56 #define OMAP_OSK_ETHR_START 0x04800300 57 58 /* TPS65010 has four GPIOs. nPG and LED2 can be treated like GPIOs with 59 * alternate pin configurations for hardware-controlled blinking. 60 */ 61 #define OSK_TPS_GPIO_BASE (OMAP_MAX_GPIO_LINES + 16 /* MPUIO */) 62 # define OSK_TPS_GPIO_USB_PWR_EN (OSK_TPS_GPIO_BASE + 0) 63 # define OSK_TPS_GPIO_LED_D3 (OSK_TPS_GPIO_BASE + 1) 64 # define OSK_TPS_GPIO_LAN_RESET (OSK_TPS_GPIO_BASE + 2) 65 # define OSK_TPS_GPIO_DSP_PWR_EN (OSK_TPS_GPIO_BASE + 3) 66 # define OSK_TPS_GPIO_LED_D9 (OSK_TPS_GPIO_BASE + 4) 67 # define OSK_TPS_GPIO_LED_D2 (OSK_TPS_GPIO_BASE + 5) 68 69 static struct mtd_partition osk_partitions[] = { 70 /* bootloader (U-Boot, etc) in first sector */ 71 { 72 .name = "bootloader", 73 .offset = 0, 74 .size = SZ_128K, 75 .mask_flags = MTD_WRITEABLE, /* force read-only */ 76 }, 77 /* bootloader params in the next sector */ 78 { 79 .name = "params", 80 .offset = MTDPART_OFS_APPEND, 81 .size = SZ_128K, 82 .mask_flags = 0, 83 }, { 84 .name = "kernel", 85 .offset = MTDPART_OFS_APPEND, 86 .size = SZ_2M, 87 .mask_flags = 0 88 }, { 89 .name = "filesystem", 90 .offset = MTDPART_OFS_APPEND, 91 .size = MTDPART_SIZ_FULL, 92 .mask_flags = 0 93 } 94 }; 95 96 static struct flash_platform_data osk_flash_data = { 97 .map_name = "cfi_probe", 98 .width = 2, 99 .parts = osk_partitions, 100 .nr_parts = ARRAY_SIZE(osk_partitions), 101 }; 102 103 static struct resource osk_flash_resource = { 104 /* this is on CS3, wherever it's mapped */ 105 .flags = IORESOURCE_MEM, 106 }; 107 108 static struct platform_device osk5912_flash_device = { 109 .name = "omapflash", 110 .id = 0, 111 .dev = { 112 .platform_data = &osk_flash_data, 113 }, 114 .num_resources = 1, 115 .resource = &osk_flash_resource, 116 }; 117 118 static struct resource osk5912_smc91x_resources[] = { 119 [0] = { 120 .start = OMAP_OSK_ETHR_START, /* Physical */ 121 .end = OMAP_OSK_ETHR_START + 0xf, 122 .flags = IORESOURCE_MEM, 123 }, 124 [1] = { 125 .start = OMAP_GPIO_IRQ(0), 126 .end = OMAP_GPIO_IRQ(0), 127 .flags = IORESOURCE_IRQ | IORESOURCE_IRQ_HIGHEDGE, 128 }, 129 }; 130 131 static struct platform_device osk5912_smc91x_device = { 132 .name = "smc91x", 133 .id = -1, 134 .num_resources = ARRAY_SIZE(osk5912_smc91x_resources), 135 .resource = osk5912_smc91x_resources, 136 }; 137 138 static struct resource osk5912_cf_resources[] = { 139 [0] = { 140 .start = OMAP_GPIO_IRQ(62), 141 .end = OMAP_GPIO_IRQ(62), 142 .flags = IORESOURCE_IRQ, 143 }, 144 }; 145 146 static struct platform_device osk5912_cf_device = { 147 .name = "omap_cf", 148 .id = -1, 149 .dev = { 150 .platform_data = (void *) 2 /* CS2 */, 151 }, 152 .num_resources = ARRAY_SIZE(osk5912_cf_resources), 153 .resource = osk5912_cf_resources, 154 }; 155 156 static struct platform_device *osk5912_devices[] __initdata = { 157 &osk5912_flash_device, 158 &osk5912_smc91x_device, 159 &osk5912_cf_device, 160 }; 161 162 static struct gpio_led tps_leds[] = { 163 /* NOTE: D9 and D2 have hardware blink support. 164 * Also, D9 requires non-battery power. 165 */ 166 { .gpio = OSK_TPS_GPIO_LED_D9, .name = "d9", 167 .default_trigger = "ide-disk", }, 168 { .gpio = OSK_TPS_GPIO_LED_D2, .name = "d2", }, 169 { .gpio = OSK_TPS_GPIO_LED_D3, .name = "d3", .active_low = 1, 170 .default_trigger = "heartbeat", }, 171 }; 172 173 static struct gpio_led_platform_data tps_leds_data = { 174 .num_leds = 3, 175 .leds = tps_leds, 176 }; 177 178 static struct platform_device osk5912_tps_leds = { 179 .name = "leds-gpio", 180 .id = 0, 181 .dev.platform_data = &tps_leds_data, 182 }; 183 184 static int osk_tps_setup(struct i2c_client *client, void *context) 185 { 186 /* Set GPIO 1 HIGH to disable VBUS power supply; 187 * OHCI driver powers it up/down as needed. 188 */ 189 gpio_request(OSK_TPS_GPIO_USB_PWR_EN, "n_vbus_en"); 190 gpio_direction_output(OSK_TPS_GPIO_USB_PWR_EN, 1); 191 192 /* Set GPIO 2 high so LED D3 is off by default */ 193 tps65010_set_gpio_out_value(GPIO2, HIGH); 194 195 /* Set GPIO 3 low to take ethernet out of reset */ 196 gpio_request(OSK_TPS_GPIO_LAN_RESET, "smc_reset"); 197 gpio_direction_output(OSK_TPS_GPIO_LAN_RESET, 0); 198 199 /* GPIO4 is VDD_DSP */ 200 gpio_request(OSK_TPS_GPIO_DSP_PWR_EN, "dsp_power"); 201 gpio_direction_output(OSK_TPS_GPIO_DSP_PWR_EN, 1); 202 /* REVISIT if DSP support isn't configured, power it off ... */ 203 204 /* Let LED1 (D9) blink; leds-gpio may override it */ 205 tps65010_set_led(LED1, BLINK); 206 207 /* Set LED2 off by default */ 208 tps65010_set_led(LED2, OFF); 209 210 /* Enable LOW_PWR handshake */ 211 tps65010_set_low_pwr(ON); 212 213 /* Switch VLDO2 to 3.0V for AIC23 */ 214 tps65010_config_vregs1(TPS_LDO2_ENABLE | TPS_VLDO2_3_0V 215 | TPS_LDO1_ENABLE); 216 217 /* register these three LEDs */ 218 osk5912_tps_leds.dev.parent = &client->dev; 219 platform_device_register(&osk5912_tps_leds); 220 221 return 0; 222 } 223 224 static struct tps65010_board tps_board = { 225 .base = OSK_TPS_GPIO_BASE, 226 .outmask = 0x0f, 227 .setup = osk_tps_setup, 228 }; 229 230 static struct i2c_board_info __initdata osk_i2c_board_info[] = { 231 { 232 I2C_BOARD_INFO("tps65010", 0x48), 233 .irq = OMAP_GPIO_IRQ(OMAP_MPUIO(1)), 234 .platform_data = &tps_board, 235 236 }, 237 { 238 I2C_BOARD_INFO("tlv320aic23", 0x1B), 239 }, 240 /* TODO when driver support is ready: 241 * - optionally on Mistral, ov9640 camera sensor at 0x30 242 */ 243 }; 244 245 static void __init osk_init_smc91x(void) 246 { 247 u32 l; 248 249 if ((gpio_request(0, "smc_irq")) < 0) { 250 printk("Error requesting gpio 0 for smc91x irq\n"); 251 return; 252 } 253 254 /* Check EMIFS wait states to fix errors with SMC_GET_PKT_HDR */ 255 l = omap_readl(EMIFS_CCS(1)); 256 l |= 0x3; 257 omap_writel(l, EMIFS_CCS(1)); 258 } 259 260 static void __init osk_init_cf(void) 261 { 262 omap_cfg_reg(M7_1610_GPIO62); 263 if ((gpio_request(62, "cf_irq")) < 0) { 264 printk("Error requesting gpio 62 for CF irq\n"); 265 return; 266 } 267 /* the CF I/O IRQ is really active-low */ 268 set_irq_type(gpio_to_irq(62), IRQ_TYPE_EDGE_FALLING); 269 } 270 271 static void __init osk_init_irq(void) 272 { 273 omap1_init_common_hw(); 274 omap_init_irq(); 275 omap_gpio_init(); 276 osk_init_smc91x(); 277 osk_init_cf(); 278 } 279 280 static struct omap_usb_config osk_usb_config __initdata = { 281 /* has usb host connector (A) ... for development it can also 282 * be used, with a NONSTANDARD gender-bending cable/dongle, as 283 * a peripheral. 284 */ 285 #ifdef CONFIG_USB_GADGET_OMAP 286 .register_dev = 1, 287 .hmc_mode = 0, 288 #else 289 .register_host = 1, 290 .hmc_mode = 16, 291 .rwc = 1, 292 #endif 293 .pins[0] = 2, 294 }; 295 296 static struct omap_uart_config osk_uart_config __initdata = { 297 .enabled_uarts = (1 << 0), 298 }; 299 300 #ifdef CONFIG_OMAP_OSK_MISTRAL 301 static struct omap_lcd_config osk_lcd_config __initdata = { 302 .ctrl_name = "internal", 303 }; 304 #endif 305 306 static struct omap_board_config_kernel osk_config[] __initdata = { 307 { OMAP_TAG_UART, &osk_uart_config }, 308 #ifdef CONFIG_OMAP_OSK_MISTRAL 309 { OMAP_TAG_LCD, &osk_lcd_config }, 310 #endif 311 }; 312 313 #ifdef CONFIG_OMAP_OSK_MISTRAL 314 315 #include <linux/input.h> 316 #include <linux/i2c/at24.h> 317 #include <linux/spi/spi.h> 318 #include <linux/spi/ads7846.h> 319 320 #include <mach/keypad.h> 321 322 static struct at24_platform_data at24c04 = { 323 .byte_len = SZ_4K / 8, 324 .page_size = 16, 325 }; 326 327 static struct i2c_board_info __initdata mistral_i2c_board_info[] = { 328 { 329 /* NOTE: powered from LCD supply */ 330 I2C_BOARD_INFO("24c04", 0x50), 331 .platform_data = &at24c04, 332 }, 333 /* TODO when driver support is ready: 334 * - optionally ov9640 camera sensor at 0x30 335 */ 336 }; 337 338 static const int osk_keymap[] = { 339 /* KEY(col, row, code) */ 340 KEY(0, 0, KEY_F1), /* SW4 */ 341 KEY(0, 3, KEY_UP), /* (sw2/up) */ 342 KEY(1, 1, KEY_LEFTCTRL), /* SW5 */ 343 KEY(1, 2, KEY_LEFT), /* (sw2/left) */ 344 KEY(2, 0, KEY_SPACE), /* SW3 */ 345 KEY(2, 1, KEY_ESC), /* SW6 */ 346 KEY(2, 2, KEY_DOWN), /* (sw2/down) */ 347 KEY(3, 2, KEY_ENTER), /* (sw2/select) */ 348 KEY(3, 3, KEY_RIGHT), /* (sw2/right) */ 349 0 350 }; 351 352 static struct omap_kp_platform_data osk_kp_data = { 353 .rows = 8, 354 .cols = 8, 355 .keymap = (int *) osk_keymap, 356 .keymapsize = ARRAY_SIZE(osk_keymap), 357 .delay = 9, 358 }; 359 360 static struct resource osk5912_kp_resources[] = { 361 [0] = { 362 .start = INT_KEYBOARD, 363 .end = INT_KEYBOARD, 364 .flags = IORESOURCE_IRQ, 365 }, 366 }; 367 368 static struct platform_device osk5912_kp_device = { 369 .name = "omap-keypad", 370 .id = -1, 371 .dev = { 372 .platform_data = &osk_kp_data, 373 }, 374 .num_resources = ARRAY_SIZE(osk5912_kp_resources), 375 .resource = osk5912_kp_resources, 376 }; 377 378 static struct omap_backlight_config mistral_bl_data = { 379 .default_intensity = 0xa0, 380 }; 381 382 static struct platform_device mistral_bl_device = { 383 .name = "omap-bl", 384 .id = -1, 385 .dev = { 386 .platform_data = &mistral_bl_data, 387 }, 388 }; 389 390 static struct platform_device osk5912_lcd_device = { 391 .name = "lcd_osk", 392 .id = -1, 393 }; 394 395 static struct platform_device *mistral_devices[] __initdata = { 396 &osk5912_kp_device, 397 &mistral_bl_device, 398 &osk5912_lcd_device, 399 }; 400 401 static int mistral_get_pendown_state(void) 402 { 403 return !gpio_get_value(4); 404 } 405 406 static const struct ads7846_platform_data mistral_ts_info = { 407 .model = 7846, 408 .vref_delay_usecs = 100, /* internal, no capacitor */ 409 .x_plate_ohms = 419, 410 .y_plate_ohms = 486, 411 .get_pendown_state = mistral_get_pendown_state, 412 }; 413 414 static struct spi_board_info __initdata mistral_boardinfo[] = { { 415 /* MicroWire (bus 2) CS0 has an ads7846e */ 416 .modalias = "ads7846", 417 .platform_data = &mistral_ts_info, 418 .irq = OMAP_GPIO_IRQ(4), 419 .max_speed_hz = 120000 /* max sample rate at 3V */ 420 * 26 /* command + data + overhead */, 421 .bus_num = 2, 422 .chip_select = 0, 423 } }; 424 425 #ifdef CONFIG_PM 426 static irqreturn_t 427 osk_mistral_wake_interrupt(int irq, void *ignored) 428 { 429 return IRQ_HANDLED; 430 } 431 #endif 432 433 static void __init osk_mistral_init(void) 434 { 435 /* NOTE: we could actually tell if there's a Mistral board 436 * attached, e.g. by trying to read something from the ads7846. 437 * But this arch_init() code is too early for that, since we 438 * can't talk to the ads or even the i2c eeprom. 439 */ 440 441 /* parallel camera interface */ 442 omap_cfg_reg(J15_1610_CAM_LCLK); 443 omap_cfg_reg(J18_1610_CAM_D7); 444 omap_cfg_reg(J19_1610_CAM_D6); 445 omap_cfg_reg(J14_1610_CAM_D5); 446 omap_cfg_reg(K18_1610_CAM_D4); 447 omap_cfg_reg(K19_1610_CAM_D3); 448 omap_cfg_reg(K15_1610_CAM_D2); 449 omap_cfg_reg(K14_1610_CAM_D1); 450 omap_cfg_reg(L19_1610_CAM_D0); 451 omap_cfg_reg(L18_1610_CAM_VS); 452 omap_cfg_reg(L15_1610_CAM_HS); 453 omap_cfg_reg(M19_1610_CAM_RSTZ); 454 omap_cfg_reg(Y15_1610_CAM_OUTCLK); 455 456 /* serial camera interface */ 457 omap_cfg_reg(H19_1610_CAM_EXCLK); 458 omap_cfg_reg(W13_1610_CCP_CLKM); 459 omap_cfg_reg(Y12_1610_CCP_CLKP); 460 /* CCP_DATAM CONFLICTS WITH UART1.TX (and serial console) */ 461 /* omap_cfg_reg(Y14_1610_CCP_DATAM); */ 462 omap_cfg_reg(W14_1610_CCP_DATAP); 463 464 /* CAM_PWDN */ 465 if (gpio_request(11, "cam_pwdn") == 0) { 466 omap_cfg_reg(N20_1610_GPIO11); 467 gpio_direction_output(11, 0); 468 } else 469 pr_debug("OSK+Mistral: CAM_PWDN is awol\n"); 470 471 472 /* omap_cfg_reg(P19_1610_GPIO6); */ /* BUSY */ 473 gpio_request(6, "ts_busy"); 474 gpio_direction_input(6); 475 476 omap_cfg_reg(P20_1610_GPIO4); /* PENIRQ */ 477 gpio_request(4, "ts_int"); 478 gpio_direction_input(4); 479 set_irq_type(gpio_to_irq(4), IRQ_TYPE_EDGE_FALLING); 480 481 spi_register_board_info(mistral_boardinfo, 482 ARRAY_SIZE(mistral_boardinfo)); 483 484 /* the sideways button (SW1) is for use as a "wakeup" button 485 * 486 * NOTE: The Mistral board has the wakeup button (SW1) wired 487 * to the LCD 3.3V rail, which is powered down during suspend. 488 * To allow this button to wake up the omap, work around this 489 * HW bug by rewiring SW1 to use the main 3.3V rail. 490 */ 491 omap_cfg_reg(N15_1610_MPUIO2); 492 if (gpio_request(OMAP_MPUIO(2), "wakeup") == 0) { 493 int ret = 0; 494 int irq = gpio_to_irq(OMAP_MPUIO(2)); 495 496 gpio_direction_input(OMAP_MPUIO(2)); 497 set_irq_type(irq, IRQ_TYPE_EDGE_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(irq, 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(irq); 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 i2c_register_board_info(1, mistral_i2c_board_info, 524 ARRAY_SIZE(mistral_i2c_board_info)); 525 526 platform_add_devices(mistral_devices, ARRAY_SIZE(mistral_devices)); 527 } 528 #else 529 static void __init osk_mistral_init(void) { } 530 #endif 531 532 #define EMIFS_CS3_VAL (0x88013141) 533 534 static void __init osk_init(void) 535 { 536 u32 l; 537 538 /* Workaround for wrong CS3 (NOR flash) timing 539 * There are some U-Boot versions out there which configure 540 * wrong CS3 memory timings. This mainly leads to CRC 541 * or similar errors if you use NOR flash (e.g. with JFFS2) 542 */ 543 l = omap_readl(EMIFS_CCS(3)); 544 if (l != EMIFS_CS3_VAL) 545 omap_writel(EMIFS_CS3_VAL, EMIFS_CCS(3)); 546 547 osk_flash_resource.end = osk_flash_resource.start = omap_cs3_phys(); 548 osk_flash_resource.end += SZ_32M - 1; 549 platform_add_devices(osk5912_devices, ARRAY_SIZE(osk5912_devices)); 550 omap_board_config = osk_config; 551 omap_board_config_size = ARRAY_SIZE(osk_config); 552 553 l = omap_readl(USB_TRANSCEIVER_CTRL); 554 l |= (3 << 1); 555 omap_writel(l, USB_TRANSCEIVER_CTRL); 556 557 omap_usb_init(&osk_usb_config); 558 559 /* irq for tps65010 chip */ 560 /* bootloader effectively does: omap_cfg_reg(U19_1610_MPUIO1); */ 561 if (gpio_request(OMAP_MPUIO(1), "tps65010") == 0) 562 gpio_direction_input(OMAP_MPUIO(1)); 563 564 omap_serial_init(); 565 omap_register_i2c_bus(1, 400, osk_i2c_board_info, 566 ARRAY_SIZE(osk_i2c_board_info)); 567 osk_mistral_init(); 568 } 569 570 static void __init osk_map_io(void) 571 { 572 omap1_map_common_io(); 573 } 574 575 MACHINE_START(OMAP_OSK, "TI-OSK") 576 /* Maintainer: Dirk Behme <dirk.behme@de.bosch.com> */ 577 .phys_io = 0xfff00000, 578 .io_pg_offst = ((0xfef00000) >> 18) & 0xfffc, 579 .boot_params = 0x10000100, 580 .map_io = osk_map_io, 581 .init_irq = osk_init_irq, 582 .init_machine = osk_init, 583 .timer = &omap_timer, 584 MACHINE_END 585