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