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 #include <linux/smc91x.h> 37 38 #include <linux/mtd/mtd.h> 39 #include <linux/mtd/partitions.h> 40 #include <linux/mtd/physmap.h> 41 42 #include <linux/i2c/tps65010.h> 43 44 #include <mach/hardware.h> 45 #include <asm/gpio.h> 46 47 #include <asm/mach-types.h> 48 #include <asm/mach/arch.h> 49 #include <asm/mach/map.h> 50 51 #include <plat/flash.h> 52 #include <plat/usb.h> 53 #include <plat/mux.h> 54 #include <plat/tc.h> 55 #include <plat/common.h> 56 57 /* At OMAP5912 OSK the Ethernet is directly connected to CS1 */ 58 #define OMAP_OSK_ETHR_START 0x04800300 59 60 /* TPS65010 has four GPIOs. nPG and LED2 can be treated like GPIOs with 61 * alternate pin configurations for hardware-controlled blinking. 62 */ 63 #define OSK_TPS_GPIO_BASE (OMAP_MAX_GPIO_LINES + 16 /* MPUIO */) 64 # define OSK_TPS_GPIO_USB_PWR_EN (OSK_TPS_GPIO_BASE + 0) 65 # define OSK_TPS_GPIO_LED_D3 (OSK_TPS_GPIO_BASE + 1) 66 # define OSK_TPS_GPIO_LAN_RESET (OSK_TPS_GPIO_BASE + 2) 67 # define OSK_TPS_GPIO_DSP_PWR_EN (OSK_TPS_GPIO_BASE + 3) 68 # define OSK_TPS_GPIO_LED_D9 (OSK_TPS_GPIO_BASE + 4) 69 # define OSK_TPS_GPIO_LED_D2 (OSK_TPS_GPIO_BASE + 5) 70 71 static struct mtd_partition osk_partitions[] = { 72 /* bootloader (U-Boot, etc) in first sector */ 73 { 74 .name = "bootloader", 75 .offset = 0, 76 .size = SZ_128K, 77 .mask_flags = MTD_WRITEABLE, /* force read-only */ 78 }, 79 /* bootloader params in the next sector */ 80 { 81 .name = "params", 82 .offset = MTDPART_OFS_APPEND, 83 .size = SZ_128K, 84 .mask_flags = 0, 85 }, { 86 .name = "kernel", 87 .offset = MTDPART_OFS_APPEND, 88 .size = SZ_2M, 89 .mask_flags = 0 90 }, { 91 .name = "filesystem", 92 .offset = MTDPART_OFS_APPEND, 93 .size = MTDPART_SIZ_FULL, 94 .mask_flags = 0 95 } 96 }; 97 98 static struct physmap_flash_data osk_flash_data = { 99 .width = 2, 100 .set_vpp = omap1_set_vpp, 101 .parts = osk_partitions, 102 .nr_parts = ARRAY_SIZE(osk_partitions), 103 }; 104 105 static struct resource osk_flash_resource = { 106 /* this is on CS3, wherever it's mapped */ 107 .flags = IORESOURCE_MEM, 108 }; 109 110 static struct platform_device osk5912_flash_device = { 111 .name = "physmap-flash", 112 .id = 0, 113 .dev = { 114 .platform_data = &osk_flash_data, 115 }, 116 .num_resources = 1, 117 .resource = &osk_flash_resource, 118 }; 119 120 static struct smc91x_platdata osk5912_smc91x_info = { 121 .flags = SMC91X_USE_16BIT | SMC91X_NOWAIT, 122 .leda = RPC_LED_100_10, 123 .ledb = RPC_LED_TX_RX, 124 }; 125 126 static struct resource osk5912_smc91x_resources[] = { 127 [0] = { 128 .start = OMAP_OSK_ETHR_START, /* Physical */ 129 .end = OMAP_OSK_ETHR_START + 0xf, 130 .flags = IORESOURCE_MEM, 131 }, 132 [1] = { 133 .start = OMAP_GPIO_IRQ(0), 134 .end = OMAP_GPIO_IRQ(0), 135 .flags = IORESOURCE_IRQ | IORESOURCE_IRQ_HIGHEDGE, 136 }, 137 }; 138 139 static struct platform_device osk5912_smc91x_device = { 140 .name = "smc91x", 141 .id = -1, 142 .dev = { 143 .platform_data = &osk5912_smc91x_info, 144 }, 145 .num_resources = ARRAY_SIZE(osk5912_smc91x_resources), 146 .resource = osk5912_smc91x_resources, 147 }; 148 149 static struct resource osk5912_cf_resources[] = { 150 [0] = { 151 .start = OMAP_GPIO_IRQ(62), 152 .end = OMAP_GPIO_IRQ(62), 153 .flags = IORESOURCE_IRQ, 154 }, 155 }; 156 157 static struct platform_device osk5912_cf_device = { 158 .name = "omap_cf", 159 .id = -1, 160 .dev = { 161 .platform_data = (void *) 2 /* CS2 */, 162 }, 163 .num_resources = ARRAY_SIZE(osk5912_cf_resources), 164 .resource = osk5912_cf_resources, 165 }; 166 167 static struct platform_device *osk5912_devices[] __initdata = { 168 &osk5912_flash_device, 169 &osk5912_smc91x_device, 170 &osk5912_cf_device, 171 }; 172 173 static struct gpio_led tps_leds[] = { 174 /* NOTE: D9 and D2 have hardware blink support. 175 * Also, D9 requires non-battery power. 176 */ 177 { .gpio = OSK_TPS_GPIO_LED_D9, .name = "d9", 178 .default_trigger = "ide-disk", }, 179 { .gpio = OSK_TPS_GPIO_LED_D2, .name = "d2", }, 180 { .gpio = OSK_TPS_GPIO_LED_D3, .name = "d3", .active_low = 1, 181 .default_trigger = "heartbeat", }, 182 }; 183 184 static struct gpio_led_platform_data tps_leds_data = { 185 .num_leds = 3, 186 .leds = tps_leds, 187 }; 188 189 static struct platform_device osk5912_tps_leds = { 190 .name = "leds-gpio", 191 .id = 0, 192 .dev.platform_data = &tps_leds_data, 193 }; 194 195 static int osk_tps_setup(struct i2c_client *client, void *context) 196 { 197 /* Set GPIO 1 HIGH to disable VBUS power supply; 198 * OHCI driver powers it up/down as needed. 199 */ 200 gpio_request(OSK_TPS_GPIO_USB_PWR_EN, "n_vbus_en"); 201 gpio_direction_output(OSK_TPS_GPIO_USB_PWR_EN, 1); 202 203 /* Set GPIO 2 high so LED D3 is off by default */ 204 tps65010_set_gpio_out_value(GPIO2, HIGH); 205 206 /* Set GPIO 3 low to take ethernet out of reset */ 207 gpio_request(OSK_TPS_GPIO_LAN_RESET, "smc_reset"); 208 gpio_direction_output(OSK_TPS_GPIO_LAN_RESET, 0); 209 210 /* GPIO4 is VDD_DSP */ 211 gpio_request(OSK_TPS_GPIO_DSP_PWR_EN, "dsp_power"); 212 gpio_direction_output(OSK_TPS_GPIO_DSP_PWR_EN, 1); 213 /* REVISIT if DSP support isn't configured, power it off ... */ 214 215 /* Let LED1 (D9) blink; leds-gpio may override it */ 216 tps65010_set_led(LED1, BLINK); 217 218 /* Set LED2 off by default */ 219 tps65010_set_led(LED2, OFF); 220 221 /* Enable LOW_PWR handshake */ 222 tps65010_set_low_pwr(ON); 223 224 /* Switch VLDO2 to 3.0V for AIC23 */ 225 tps65010_config_vregs1(TPS_LDO2_ENABLE | TPS_VLDO2_3_0V 226 | TPS_LDO1_ENABLE); 227 228 /* register these three LEDs */ 229 osk5912_tps_leds.dev.parent = &client->dev; 230 platform_device_register(&osk5912_tps_leds); 231 232 return 0; 233 } 234 235 static struct tps65010_board tps_board = { 236 .base = OSK_TPS_GPIO_BASE, 237 .outmask = 0x0f, 238 .setup = osk_tps_setup, 239 }; 240 241 static struct i2c_board_info __initdata osk_i2c_board_info[] = { 242 { 243 I2C_BOARD_INFO("tps65010", 0x48), 244 .irq = OMAP_GPIO_IRQ(OMAP_MPUIO(1)), 245 .platform_data = &tps_board, 246 247 }, 248 { 249 I2C_BOARD_INFO("tlv320aic23", 0x1B), 250 }, 251 /* TODO when driver support is ready: 252 * - optionally on Mistral, ov9640 camera sensor at 0x30 253 */ 254 }; 255 256 static void __init osk_init_smc91x(void) 257 { 258 u32 l; 259 260 if ((gpio_request(0, "smc_irq")) < 0) { 261 printk("Error requesting gpio 0 for smc91x irq\n"); 262 return; 263 } 264 265 /* Check EMIFS wait states to fix errors with SMC_GET_PKT_HDR */ 266 l = omap_readl(EMIFS_CCS(1)); 267 l |= 0x3; 268 omap_writel(l, EMIFS_CCS(1)); 269 } 270 271 static void __init osk_init_cf(void) 272 { 273 omap_cfg_reg(M7_1610_GPIO62); 274 if ((gpio_request(62, "cf_irq")) < 0) { 275 printk("Error requesting gpio 62 for CF irq\n"); 276 return; 277 } 278 /* the CF I/O IRQ is really active-low */ 279 set_irq_type(gpio_to_irq(62), IRQ_TYPE_EDGE_FALLING); 280 } 281 282 static void __init osk_init_irq(void) 283 { 284 omap1_init_common_hw(); 285 omap_init_irq(); 286 omap_gpio_init(); 287 osk_init_smc91x(); 288 osk_init_cf(); 289 } 290 291 static struct omap_usb_config osk_usb_config __initdata = { 292 /* has usb host connector (A) ... for development it can also 293 * be used, with a NONSTANDARD gender-bending cable/dongle, as 294 * a peripheral. 295 */ 296 #ifdef CONFIG_USB_GADGET_OMAP 297 .register_dev = 1, 298 .hmc_mode = 0, 299 #else 300 .register_host = 1, 301 .hmc_mode = 16, 302 .rwc = 1, 303 #endif 304 .pins[0] = 2, 305 }; 306 307 #ifdef CONFIG_OMAP_OSK_MISTRAL 308 static struct omap_lcd_config osk_lcd_config __initdata = { 309 .ctrl_name = "internal", 310 }; 311 #endif 312 313 static struct omap_board_config_kernel osk_config[] __initdata = { 314 #ifdef CONFIG_OMAP_OSK_MISTRAL 315 { OMAP_TAG_LCD, &osk_lcd_config }, 316 #endif 317 }; 318 319 #ifdef CONFIG_OMAP_OSK_MISTRAL 320 321 #include <linux/input.h> 322 #include <linux/i2c/at24.h> 323 #include <linux/spi/spi.h> 324 #include <linux/spi/ads7846.h> 325 326 #include <plat/keypad.h> 327 328 static struct at24_platform_data at24c04 = { 329 .byte_len = SZ_4K / 8, 330 .page_size = 16, 331 }; 332 333 static struct i2c_board_info __initdata mistral_i2c_board_info[] = { 334 { 335 /* NOTE: powered from LCD supply */ 336 I2C_BOARD_INFO("24c04", 0x50), 337 .platform_data = &at24c04, 338 }, 339 /* TODO when driver support is ready: 340 * - optionally ov9640 camera sensor at 0x30 341 */ 342 }; 343 344 static const int osk_keymap[] = { 345 /* KEY(col, row, code) */ 346 KEY(0, 0, KEY_F1), /* SW4 */ 347 KEY(0, 3, KEY_UP), /* (sw2/up) */ 348 KEY(1, 1, KEY_LEFTCTRL), /* SW5 */ 349 KEY(1, 2, KEY_LEFT), /* (sw2/left) */ 350 KEY(2, 0, KEY_SPACE), /* SW3 */ 351 KEY(2, 1, KEY_ESC), /* SW6 */ 352 KEY(2, 2, KEY_DOWN), /* (sw2/down) */ 353 KEY(3, 2, KEY_ENTER), /* (sw2/select) */ 354 KEY(3, 3, KEY_RIGHT), /* (sw2/right) */ 355 0 356 }; 357 358 static struct omap_kp_platform_data osk_kp_data = { 359 .rows = 8, 360 .cols = 8, 361 .keymap = (int *) osk_keymap, 362 .keymapsize = ARRAY_SIZE(osk_keymap), 363 .delay = 9, 364 }; 365 366 static struct resource osk5912_kp_resources[] = { 367 [0] = { 368 .start = INT_KEYBOARD, 369 .end = INT_KEYBOARD, 370 .flags = IORESOURCE_IRQ, 371 }, 372 }; 373 374 static struct platform_device osk5912_kp_device = { 375 .name = "omap-keypad", 376 .id = -1, 377 .dev = { 378 .platform_data = &osk_kp_data, 379 }, 380 .num_resources = ARRAY_SIZE(osk5912_kp_resources), 381 .resource = osk5912_kp_resources, 382 }; 383 384 static struct omap_backlight_config mistral_bl_data = { 385 .default_intensity = 0xa0, 386 }; 387 388 static struct platform_device mistral_bl_device = { 389 .name = "omap-bl", 390 .id = -1, 391 .dev = { 392 .platform_data = &mistral_bl_data, 393 }, 394 }; 395 396 static struct platform_device osk5912_lcd_device = { 397 .name = "lcd_osk", 398 .id = -1, 399 }; 400 401 static struct platform_device *mistral_devices[] __initdata = { 402 &osk5912_kp_device, 403 &mistral_bl_device, 404 &osk5912_lcd_device, 405 }; 406 407 static int mistral_get_pendown_state(void) 408 { 409 return !gpio_get_value(4); 410 } 411 412 static const struct ads7846_platform_data mistral_ts_info = { 413 .model = 7846, 414 .vref_delay_usecs = 100, /* internal, no capacitor */ 415 .x_plate_ohms = 419, 416 .y_plate_ohms = 486, 417 .get_pendown_state = mistral_get_pendown_state, 418 }; 419 420 static struct spi_board_info __initdata mistral_boardinfo[] = { { 421 /* MicroWire (bus 2) CS0 has an ads7846e */ 422 .modalias = "ads7846", 423 .platform_data = &mistral_ts_info, 424 .irq = OMAP_GPIO_IRQ(4), 425 .max_speed_hz = 120000 /* max sample rate at 3V */ 426 * 26 /* command + data + overhead */, 427 .bus_num = 2, 428 .chip_select = 0, 429 } }; 430 431 #ifdef CONFIG_PM 432 static irqreturn_t 433 osk_mistral_wake_interrupt(int irq, void *ignored) 434 { 435 return IRQ_HANDLED; 436 } 437 #endif 438 439 static void __init osk_mistral_init(void) 440 { 441 /* NOTE: we could actually tell if there's a Mistral board 442 * attached, e.g. by trying to read something from the ads7846. 443 * But this arch_init() code is too early for that, since we 444 * can't talk to the ads or even the i2c eeprom. 445 */ 446 447 /* parallel camera interface */ 448 omap_cfg_reg(J15_1610_CAM_LCLK); 449 omap_cfg_reg(J18_1610_CAM_D7); 450 omap_cfg_reg(J19_1610_CAM_D6); 451 omap_cfg_reg(J14_1610_CAM_D5); 452 omap_cfg_reg(K18_1610_CAM_D4); 453 omap_cfg_reg(K19_1610_CAM_D3); 454 omap_cfg_reg(K15_1610_CAM_D2); 455 omap_cfg_reg(K14_1610_CAM_D1); 456 omap_cfg_reg(L19_1610_CAM_D0); 457 omap_cfg_reg(L18_1610_CAM_VS); 458 omap_cfg_reg(L15_1610_CAM_HS); 459 omap_cfg_reg(M19_1610_CAM_RSTZ); 460 omap_cfg_reg(Y15_1610_CAM_OUTCLK); 461 462 /* serial camera interface */ 463 omap_cfg_reg(H19_1610_CAM_EXCLK); 464 omap_cfg_reg(W13_1610_CCP_CLKM); 465 omap_cfg_reg(Y12_1610_CCP_CLKP); 466 /* CCP_DATAM CONFLICTS WITH UART1.TX (and serial console) */ 467 /* omap_cfg_reg(Y14_1610_CCP_DATAM); */ 468 omap_cfg_reg(W14_1610_CCP_DATAP); 469 470 /* CAM_PWDN */ 471 if (gpio_request(11, "cam_pwdn") == 0) { 472 omap_cfg_reg(N20_1610_GPIO11); 473 gpio_direction_output(11, 0); 474 } else 475 pr_debug("OSK+Mistral: CAM_PWDN is awol\n"); 476 477 478 /* omap_cfg_reg(P19_1610_GPIO6); */ /* BUSY */ 479 gpio_request(6, "ts_busy"); 480 gpio_direction_input(6); 481 482 omap_cfg_reg(P20_1610_GPIO4); /* PENIRQ */ 483 gpio_request(4, "ts_int"); 484 gpio_direction_input(4); 485 set_irq_type(gpio_to_irq(4), IRQ_TYPE_EDGE_FALLING); 486 487 spi_register_board_info(mistral_boardinfo, 488 ARRAY_SIZE(mistral_boardinfo)); 489 490 /* the sideways button (SW1) is for use as a "wakeup" button 491 * 492 * NOTE: The Mistral board has the wakeup button (SW1) wired 493 * to the LCD 3.3V rail, which is powered down during suspend. 494 * To allow this button to wake up the omap, work around this 495 * HW bug by rewiring SW1 to use the main 3.3V rail. 496 */ 497 omap_cfg_reg(N15_1610_MPUIO2); 498 if (gpio_request(OMAP_MPUIO(2), "wakeup") == 0) { 499 int ret = 0; 500 int irq = gpio_to_irq(OMAP_MPUIO(2)); 501 502 gpio_direction_input(OMAP_MPUIO(2)); 503 set_irq_type(irq, IRQ_TYPE_EDGE_RISING); 504 #ifdef CONFIG_PM 505 /* share the IRQ in case someone wants to use the 506 * button for more than wakeup from system sleep. 507 */ 508 ret = request_irq(irq, 509 &osk_mistral_wake_interrupt, 510 IRQF_SHARED, "mistral_wakeup", 511 &osk_mistral_wake_interrupt); 512 if (ret != 0) { 513 gpio_free(OMAP_MPUIO(2)); 514 printk(KERN_ERR "OSK+Mistral: no wakeup irq, %d?\n", 515 ret); 516 } else 517 enable_irq_wake(irq); 518 #endif 519 } else 520 printk(KERN_ERR "OSK+Mistral: wakeup button is awol\n"); 521 522 /* LCD: backlight, and power; power controls other devices on the 523 * board, like the touchscreen, EEPROM, and wakeup (!) switch. 524 */ 525 omap_cfg_reg(PWL); 526 if (gpio_request(2, "lcd_pwr") == 0) 527 gpio_direction_output(2, 1); 528 529 i2c_register_board_info(1, mistral_i2c_board_info, 530 ARRAY_SIZE(mistral_i2c_board_info)); 531 532 platform_add_devices(mistral_devices, ARRAY_SIZE(mistral_devices)); 533 } 534 #else 535 static void __init osk_mistral_init(void) { } 536 #endif 537 538 #define EMIFS_CS3_VAL (0x88013141) 539 540 static void __init osk_init(void) 541 { 542 u32 l; 543 544 /* Workaround for wrong CS3 (NOR flash) timing 545 * There are some U-Boot versions out there which configure 546 * wrong CS3 memory timings. This mainly leads to CRC 547 * or similar errors if you use NOR flash (e.g. with JFFS2) 548 */ 549 l = omap_readl(EMIFS_CCS(3)); 550 if (l != EMIFS_CS3_VAL) 551 omap_writel(EMIFS_CS3_VAL, EMIFS_CCS(3)); 552 553 osk_flash_resource.end = osk_flash_resource.start = omap_cs3_phys(); 554 osk_flash_resource.end += SZ_32M - 1; 555 platform_add_devices(osk5912_devices, ARRAY_SIZE(osk5912_devices)); 556 omap_board_config = osk_config; 557 omap_board_config_size = ARRAY_SIZE(osk_config); 558 559 l = omap_readl(USB_TRANSCEIVER_CTRL); 560 l |= (3 << 1); 561 omap_writel(l, USB_TRANSCEIVER_CTRL); 562 563 omap1_usb_init(&osk_usb_config); 564 565 /* irq for tps65010 chip */ 566 /* bootloader effectively does: omap_cfg_reg(U19_1610_MPUIO1); */ 567 if (gpio_request(OMAP_MPUIO(1), "tps65010") == 0) 568 gpio_direction_input(OMAP_MPUIO(1)); 569 570 omap_serial_init(); 571 omap_register_i2c_bus(1, 400, osk_i2c_board_info, 572 ARRAY_SIZE(osk_i2c_board_info)); 573 osk_mistral_init(); 574 } 575 576 static void __init osk_map_io(void) 577 { 578 omap1_map_common_io(); 579 } 580 581 MACHINE_START(OMAP_OSK, "TI-OSK") 582 /* Maintainer: Dirk Behme <dirk.behme@de.bosch.com> */ 583 .boot_params = 0x10000100, 584 .map_io = osk_map_io, 585 .reserve = omap_reserve, 586 .init_irq = osk_init_irq, 587 .init_machine = osk_init, 588 .timer = &omap_timer, 589 MACHINE_END 590