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 "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 = "disk-activity", }, 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 if (!IS_BUILTIN(CONFIG_TPS65010)) 195 return -ENOSYS; 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 .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 #if IS_ENABLED(CONFIG_USB_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 #ifdef CONFIG_OMAP_OSK_MISTRAL 304 305 #include <linux/input.h> 306 #include <linux/platform_data/at24.h> 307 #include <linux/spi/spi.h> 308 #include <linux/spi/ads7846.h> 309 310 #include <linux/platform_data/keypad-omap.h> 311 312 static struct at24_platform_data at24c04 = { 313 .byte_len = SZ_4K / 8, 314 .page_size = 16, 315 }; 316 317 static struct i2c_board_info __initdata mistral_i2c_board_info[] = { 318 { 319 /* NOTE: powered from LCD supply */ 320 I2C_BOARD_INFO("24c04", 0x50), 321 .platform_data = &at24c04, 322 }, 323 /* TODO when driver support is ready: 324 * - optionally ov9640 camera sensor at 0x30 325 */ 326 }; 327 328 static const unsigned int osk_keymap[] = { 329 /* KEY(col, row, code) */ 330 KEY(0, 0, KEY_F1), /* SW4 */ 331 KEY(3, 0, KEY_UP), /* (sw2/up) */ 332 KEY(1, 1, KEY_LEFTCTRL), /* SW5 */ 333 KEY(2, 1, KEY_LEFT), /* (sw2/left) */ 334 KEY(0, 2, KEY_SPACE), /* SW3 */ 335 KEY(1, 2, KEY_ESC), /* SW6 */ 336 KEY(2, 2, KEY_DOWN), /* (sw2/down) */ 337 KEY(2, 3, KEY_ENTER), /* (sw2/select) */ 338 KEY(3, 3, KEY_RIGHT), /* (sw2/right) */ 339 }; 340 341 static const struct matrix_keymap_data osk_keymap_data = { 342 .keymap = osk_keymap, 343 .keymap_size = ARRAY_SIZE(osk_keymap), 344 }; 345 346 static struct omap_kp_platform_data osk_kp_data = { 347 .rows = 8, 348 .cols = 8, 349 .keymap_data = &osk_keymap_data, 350 .delay = 9, 351 }; 352 353 static struct resource osk5912_kp_resources[] = { 354 [0] = { 355 .start = INT_KEYBOARD, 356 .end = INT_KEYBOARD, 357 .flags = IORESOURCE_IRQ, 358 }, 359 }; 360 361 static struct platform_device osk5912_kp_device = { 362 .name = "omap-keypad", 363 .id = -1, 364 .dev = { 365 .platform_data = &osk_kp_data, 366 }, 367 .num_resources = ARRAY_SIZE(osk5912_kp_resources), 368 .resource = osk5912_kp_resources, 369 }; 370 371 static struct omap_backlight_config mistral_bl_data = { 372 .default_intensity = 0xa0, 373 }; 374 375 static struct platform_device mistral_bl_device = { 376 .name = "omap-bl", 377 .id = -1, 378 .dev = { 379 .platform_data = &mistral_bl_data, 380 }, 381 }; 382 383 static struct platform_device osk5912_lcd_device = { 384 .name = "lcd_osk", 385 .id = -1, 386 }; 387 388 static struct gpio_led mistral_gpio_led_pins[] = { 389 { 390 .name = "mistral:red", 391 .default_trigger = "heartbeat", 392 .gpio = 3, 393 }, 394 { 395 .name = "mistral:green", 396 .default_trigger = "cpu0", 397 .gpio = OMAP_MPUIO(4), 398 }, 399 }; 400 401 static struct gpio_led_platform_data mistral_gpio_led_data = { 402 .leds = mistral_gpio_led_pins, 403 .num_leds = ARRAY_SIZE(mistral_gpio_led_pins), 404 }; 405 406 static struct platform_device mistral_gpio_leds = { 407 .name = "leds-gpio", 408 .id = -1, 409 .dev = { 410 .platform_data = &mistral_gpio_led_data, 411 }, 412 }; 413 414 static struct platform_device *mistral_devices[] __initdata = { 415 &osk5912_kp_device, 416 &mistral_bl_device, 417 &osk5912_lcd_device, 418 &mistral_gpio_leds, 419 }; 420 421 static int mistral_get_pendown_state(void) 422 { 423 return !gpio_get_value(4); 424 } 425 426 static const struct ads7846_platform_data mistral_ts_info = { 427 .model = 7846, 428 .vref_delay_usecs = 100, /* internal, no capacitor */ 429 .x_plate_ohms = 419, 430 .y_plate_ohms = 486, 431 .get_pendown_state = mistral_get_pendown_state, 432 }; 433 434 static struct spi_board_info __initdata mistral_boardinfo[] = { { 435 /* MicroWire (bus 2) CS0 has an ads7846e */ 436 .modalias = "ads7846", 437 .platform_data = &mistral_ts_info, 438 .max_speed_hz = 120000 /* max sample rate at 3V */ 439 * 26 /* command + data + overhead */, 440 .bus_num = 2, 441 .chip_select = 0, 442 } }; 443 444 static irqreturn_t 445 osk_mistral_wake_interrupt(int irq, void *ignored) 446 { 447 return IRQ_HANDLED; 448 } 449 450 static void __init osk_mistral_init(void) 451 { 452 /* NOTE: we could actually tell if there's a Mistral board 453 * attached, e.g. by trying to read something from the ads7846. 454 * But this arch_init() code is too early for that, since we 455 * can't talk to the ads or even the i2c eeprom. 456 */ 457 458 /* parallel camera interface */ 459 omap_cfg_reg(J15_1610_CAM_LCLK); 460 omap_cfg_reg(J18_1610_CAM_D7); 461 omap_cfg_reg(J19_1610_CAM_D6); 462 omap_cfg_reg(J14_1610_CAM_D5); 463 omap_cfg_reg(K18_1610_CAM_D4); 464 omap_cfg_reg(K19_1610_CAM_D3); 465 omap_cfg_reg(K15_1610_CAM_D2); 466 omap_cfg_reg(K14_1610_CAM_D1); 467 omap_cfg_reg(L19_1610_CAM_D0); 468 omap_cfg_reg(L18_1610_CAM_VS); 469 omap_cfg_reg(L15_1610_CAM_HS); 470 omap_cfg_reg(M19_1610_CAM_RSTZ); 471 omap_cfg_reg(Y15_1610_CAM_OUTCLK); 472 473 /* serial camera interface */ 474 omap_cfg_reg(H19_1610_CAM_EXCLK); 475 omap_cfg_reg(W13_1610_CCP_CLKM); 476 omap_cfg_reg(Y12_1610_CCP_CLKP); 477 /* CCP_DATAM CONFLICTS WITH UART1.TX (and serial console) */ 478 /* omap_cfg_reg(Y14_1610_CCP_DATAM); */ 479 omap_cfg_reg(W14_1610_CCP_DATAP); 480 481 /* CAM_PWDN */ 482 if (gpio_request(11, "cam_pwdn") == 0) { 483 omap_cfg_reg(N20_1610_GPIO11); 484 gpio_direction_output(11, 0); 485 } else 486 pr_debug("OSK+Mistral: CAM_PWDN is awol\n"); 487 488 489 /* omap_cfg_reg(P19_1610_GPIO6); */ /* BUSY */ 490 gpio_request(6, "ts_busy"); 491 gpio_direction_input(6); 492 493 omap_cfg_reg(P20_1610_GPIO4); /* PENIRQ */ 494 gpio_request(4, "ts_int"); 495 gpio_direction_input(4); 496 irq_set_irq_type(gpio_to_irq(4), IRQ_TYPE_EDGE_FALLING); 497 498 mistral_boardinfo[0].irq = gpio_to_irq(4); 499 spi_register_board_info(mistral_boardinfo, 500 ARRAY_SIZE(mistral_boardinfo)); 501 502 /* the sideways button (SW1) is for use as a "wakeup" button 503 * 504 * NOTE: The Mistral board has the wakeup button (SW1) wired 505 * to the LCD 3.3V rail, which is powered down during suspend. 506 * To allow this button to wake up the omap, work around this 507 * HW bug by rewiring SW1 to use the main 3.3V rail. 508 */ 509 omap_cfg_reg(N15_1610_MPUIO2); 510 if (gpio_request(OMAP_MPUIO(2), "wakeup") == 0) { 511 int ret = 0; 512 int irq = gpio_to_irq(OMAP_MPUIO(2)); 513 514 gpio_direction_input(OMAP_MPUIO(2)); 515 irq_set_irq_type(irq, IRQ_TYPE_EDGE_RISING); 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 } else 530 printk(KERN_ERR "OSK+Mistral: wakeup button is awol\n"); 531 532 /* LCD: backlight, and power; power controls other devices on the 533 * board, like the touchscreen, EEPROM, and wakeup (!) switch. 534 */ 535 omap_cfg_reg(PWL); 536 if (gpio_request(2, "lcd_pwr") == 0) 537 gpio_direction_output(2, 1); 538 539 /* 540 * GPIO based LEDs 541 */ 542 omap_cfg_reg(P18_1610_GPIO3); 543 omap_cfg_reg(MPUIO4); 544 545 i2c_register_board_info(1, mistral_i2c_board_info, 546 ARRAY_SIZE(mistral_i2c_board_info)); 547 548 platform_add_devices(mistral_devices, ARRAY_SIZE(mistral_devices)); 549 } 550 #else 551 static void __init osk_mistral_init(void) { } 552 #endif 553 554 #define EMIFS_CS3_VAL (0x88013141) 555 556 static void __init osk_init(void) 557 { 558 u32 l; 559 560 osk_init_smc91x(); 561 osk_init_cf(); 562 563 /* Workaround for wrong CS3 (NOR flash) timing 564 * There are some U-Boot versions out there which configure 565 * wrong CS3 memory timings. This mainly leads to CRC 566 * or similar errors if you use NOR flash (e.g. with JFFS2) 567 */ 568 l = omap_readl(EMIFS_CCS(3)); 569 if (l != EMIFS_CS3_VAL) 570 omap_writel(EMIFS_CS3_VAL, EMIFS_CCS(3)); 571 572 osk_flash_resource.end = osk_flash_resource.start = omap_cs3_phys(); 573 osk_flash_resource.end += SZ_32M - 1; 574 osk5912_smc91x_resources[1].start = gpio_to_irq(0); 575 osk5912_smc91x_resources[1].end = gpio_to_irq(0); 576 osk5912_cf_resources[0].start = gpio_to_irq(62); 577 osk5912_cf_resources[0].end = gpio_to_irq(62); 578 platform_add_devices(osk5912_devices, ARRAY_SIZE(osk5912_devices)); 579 580 l = omap_readl(USB_TRANSCEIVER_CTRL); 581 l |= (3 << 1); 582 omap_writel(l, USB_TRANSCEIVER_CTRL); 583 584 omap1_usb_init(&osk_usb_config); 585 586 /* irq for tps65010 chip */ 587 /* bootloader effectively does: omap_cfg_reg(U19_1610_MPUIO1); */ 588 if (gpio_request(OMAP_MPUIO(1), "tps65010") == 0) 589 gpio_direction_input(OMAP_MPUIO(1)); 590 591 omap_serial_init(); 592 osk_i2c_board_info[0].irq = gpio_to_irq(OMAP_MPUIO(1)); 593 omap_register_i2c_bus(1, 400, osk_i2c_board_info, 594 ARRAY_SIZE(osk_i2c_board_info)); 595 osk_mistral_init(); 596 597 #ifdef CONFIG_OMAP_OSK_MISTRAL 598 omapfb_set_lcd_config(&osk_lcd_config); 599 #endif 600 601 } 602 603 MACHINE_START(OMAP_OSK, "TI-OSK") 604 /* Maintainer: Dirk Behme <dirk.behme@de.bosch.com> */ 605 .atag_offset = 0x100, 606 .map_io = omap16xx_map_io, 607 .init_early = omap1_init_early, 608 .init_irq = omap1_init_irq, 609 .handle_irq = omap1_handle_irq, 610 .init_machine = osk_init, 611 .init_late = omap1_init_late, 612 .init_time = omap1_timer_init, 613 .restart = omap1_restart, 614 MACHINE_END 615