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