1/* 2 * linux/arch/arm/mach-pxa/trizeps4.c 3 * 4 * Support for the Keith und Koep Trizeps4 Module Platform. 5 * 6 * Author: Jürgen Schindele 7 * Created: 20 02, 2006 8 * Copyright: Jürgen Schindele 9 * 10 * This program is free software; you can redistribute it and/or modify 11 * it under the terms of the GNU General Public License version 2 as 12 * published by the Free Software Foundation. 13 */ 14 15#include <linux/init.h> 16#include <linux/kernel.h> 17#include <linux/platform_device.h> 18#include <linux/interrupt.h> 19#include <linux/export.h> 20#include <linux/sched.h> 21#include <linux/bitops.h> 22#include <linux/fb.h> 23#include <linux/ioport.h> 24#include <linux/delay.h> 25#include <linux/gpio.h> 26#include <linux/dm9000.h> 27#include <linux/mtd/physmap.h> 28#include <linux/mtd/partitions.h> 29#include <linux/regulator/machine.h> 30#include <linux/i2c/pxa-i2c.h> 31 32#include <asm/types.h> 33#include <asm/setup.h> 34#include <asm/memory.h> 35#include <asm/mach-types.h> 36#include <asm/irq.h> 37#include <asm/sizes.h> 38 39#include <asm/mach/arch.h> 40#include <asm/mach/map.h> 41#include <asm/mach/irq.h> 42#include <asm/mach/flash.h> 43 44#include <mach/pxa27x.h> 45#include <mach/trizeps4.h> 46#include <mach/audio.h> 47#include <linux/platform_data/video-pxafb.h> 48#include <linux/platform_data/mmc-pxamci.h> 49#include <linux/platform_data/irda-pxaficp.h> 50#include <linux/platform_data/usb-ohci-pxa27x.h> 51#include <mach/smemc.h> 52 53#include "generic.h" 54#include "devices.h" 55 56/* comment out the following line if you want to use the 57 * Standard UART from PXA for serial / irda transmission 58 * and acivate it if you have status leds connected */ 59#define STATUS_LEDS_ON_STUART_PINS 1 60 61/***************************************************************************** 62 * MultiFunctionPins of CPU 63 *****************************************************************************/ 64static unsigned long trizeps4_pin_config[] __initdata = { 65 /* Chip Selects */ 66 GPIO15_nCS_1, /* DiskOnChip CS */ 67 GPIO93_GPIO, /* TRIZEPS4_DOC_IRQ */ 68 GPIO94_GPIO, /* DOC lock */ 69 70 GPIO78_nCS_2, /* DM9000 CS */ 71 GPIO101_GPIO, /* TRIZEPS4_ETH_IRQ */ 72 73 GPIO79_nCS_3, /* Logic CS */ 74 GPIO0_GPIO | WAKEUP_ON_EDGE_RISE, /* Logic irq */ 75 76 /* AC97 */ 77 GPIO28_AC97_BITCLK, 78 GPIO29_AC97_SDATA_IN_0, 79 GPIO30_AC97_SDATA_OUT, 80 GPIO31_AC97_SYNC, 81 82 /* LCD - 16bpp Active TFT */ 83 GPIOxx_LCD_TFT_16BPP, 84 85 /* UART */ 86 GPIO9_FFUART_CTS, 87 GPIO10_FFUART_DCD, 88 GPIO16_FFUART_TXD, 89 GPIO33_FFUART_DSR, 90 GPIO38_FFUART_RI, 91 GPIO82_FFUART_DTR, 92 GPIO83_FFUART_RTS, 93 GPIO96_FFUART_RXD, 94 95 GPIO42_BTUART_RXD, 96 GPIO43_BTUART_TXD, 97 GPIO44_BTUART_CTS, 98 GPIO45_BTUART_RTS, 99#ifdef STATUS_LEDS_ON_STUART_PINS 100 GPIO46_GPIO, 101 GPIO47_GPIO, 102#else 103 GPIO46_STUART_RXD, 104 GPIO47_STUART_TXD, 105#endif 106 /* PCMCIA */ 107 GPIO11_GPIO, /* TRIZEPS4_CD_IRQ */ 108 GPIO13_GPIO, /* TRIZEPS4_READY_NINT */ 109 GPIO48_nPOE, 110 GPIO49_nPWE, 111 GPIO50_nPIOR, 112 GPIO51_nPIOW, 113 GPIO54_nPCE_2, 114 GPIO55_nPREG, 115 GPIO56_nPWAIT, 116 GPIO57_nIOIS16, 117 GPIO102_nPCE_1, 118 GPIO104_PSKTSEL, 119 120 /* MultiMediaCard */ 121 GPIO32_MMC_CLK, 122 GPIO92_MMC_DAT_0, 123 GPIO109_MMC_DAT_1, 124 GPIO110_MMC_DAT_2, 125 GPIO111_MMC_DAT_3, 126 GPIO112_MMC_CMD, 127 GPIO12_GPIO, /* TRIZEPS4_MMC_IRQ */ 128 129 /* USB OHCI */ 130 GPIO88_USBH1_PWR, /* USBHPWR1 */ 131 GPIO89_USBH1_PEN, /* USBHPEN1 */ 132 133 /* I2C */ 134 GPIO117_I2C_SCL, 135 GPIO118_I2C_SDA, 136}; 137 138static unsigned long trizeps4wl_pin_config[] __initdata = { 139 /* SSP 2 */ 140 GPIO14_SSP2_SFRM, 141 GPIO19_SSP2_SCLK, 142 GPIO53_GPIO, /* TRIZEPS4_SPI_IRQ */ 143 GPIO86_SSP2_RXD, 144 GPIO87_SSP2_TXD, 145}; 146 147/**************************************************************************** 148 * ONBOARD FLASH 149 ****************************************************************************/ 150static struct mtd_partition trizeps4_partitions[] = { 151 { 152 .name = "Bootloader", 153 .offset = 0x00000000, 154 .size = 0x00040000, 155 .mask_flags = MTD_WRITEABLE /* force read-only */ 156 }, { 157 .name = "Backup", 158 .offset = 0x00040000, 159 .size = 0x00040000, 160 }, { 161 .name = "Image", 162 .offset = 0x00080000, 163 .size = 0x01080000, 164 }, { 165 .name = "IPSM", 166 .offset = 0x01100000, 167 .size = 0x00e00000, 168 }, { 169 .name = "Registry", 170 .offset = 0x01f00000, 171 .size = MTDPART_SIZ_FULL, 172 } 173}; 174 175static struct physmap_flash_data trizeps4_flash_data[] = { 176 { 177 .width = 4, /* bankwidth in bytes */ 178 .parts = trizeps4_partitions, 179 .nr_parts = ARRAY_SIZE(trizeps4_partitions) 180 } 181}; 182 183static struct resource flash_resource = { 184 .start = PXA_CS0_PHYS, 185 .end = PXA_CS0_PHYS + SZ_32M - 1, 186 .flags = IORESOURCE_MEM, 187}; 188 189static struct platform_device flash_device = { 190 .name = "physmap-flash", 191 .id = 0, 192 .dev = { 193 .platform_data = trizeps4_flash_data, 194 }, 195 .resource = &flash_resource, 196 .num_resources = 1, 197}; 198 199/**************************************************************************** 200 * DAVICOM DM9000 Ethernet 201 ****************************************************************************/ 202static struct resource dm9000_resources[] = { 203 [0] = { 204 .start = TRIZEPS4_ETH_PHYS+0x300, 205 .end = TRIZEPS4_ETH_PHYS+0x400-1, 206 .flags = IORESOURCE_MEM, 207 }, 208 [1] = { 209 .start = TRIZEPS4_ETH_PHYS+0x8300, 210 .end = TRIZEPS4_ETH_PHYS+0x8400-1, 211 .flags = IORESOURCE_MEM, 212 }, 213 [2] = { 214 .start = TRIZEPS4_ETH_IRQ, 215 .end = TRIZEPS4_ETH_IRQ, 216 .flags = IORESOURCE_IRQ | IORESOURCE_IRQ_HIGHEDGE, 217 }, 218}; 219 220static struct dm9000_plat_data tri_dm9000_platdata = { 221 .flags = DM9000_PLATF_32BITONLY, 222}; 223 224static struct platform_device dm9000_device = { 225 .name = "dm9000", 226 .id = -1, 227 .num_resources = ARRAY_SIZE(dm9000_resources), 228 .resource = dm9000_resources, 229 .dev = { 230 .platform_data = &tri_dm9000_platdata, 231 } 232}; 233 234/**************************************************************************** 235 * LED's on GPIO pins of PXA 236 ****************************************************************************/ 237static struct gpio_led trizeps4_led[] = { 238#ifdef STATUS_LEDS_ON_STUART_PINS 239 { 240 .name = "led0:orange:heartbeat", /* */ 241 .default_trigger = "heartbeat", 242 .gpio = GPIO_HEARTBEAT_LED, 243 .active_low = 1, 244 }, 245 { 246 .name = "led1:yellow:cpubusy", /* */ 247 .default_trigger = "cpu-busy", 248 .gpio = GPIO_SYS_BUSY_LED, 249 .active_low = 1, 250 }, 251#endif 252}; 253 254static struct gpio_led_platform_data trizeps4_led_data = { 255 .leds = trizeps4_led, 256 .num_leds = ARRAY_SIZE(trizeps4_led), 257}; 258 259static struct platform_device leds_devices = { 260 .name = "leds-gpio", 261 .id = -1, 262 .dev = { 263 .platform_data = &trizeps4_led_data, 264 }, 265}; 266 267static struct platform_device *trizeps4_devices[] __initdata = { 268 &flash_device, 269 &dm9000_device, 270 &leds_devices, 271}; 272 273static struct platform_device *trizeps4wl_devices[] __initdata = { 274 &flash_device, 275 &leds_devices, 276}; 277 278static short trizeps_conxs_bcr; 279 280/* PCCARD power switching supports only 3,3V */ 281void board_pcmcia_power(int power) 282{ 283 if (power) { 284 /* switch power on, put in reset and enable buffers */ 285 trizeps_conxs_bcr |= power; 286 trizeps_conxs_bcr |= ConXS_BCR_CF_RESET; 287 trizeps_conxs_bcr &= ~ConXS_BCR_CF_BUF_EN; 288 BCR_writew(trizeps_conxs_bcr); 289 /* wait a little */ 290 udelay(2000); 291 /* take reset away */ 292 trizeps_conxs_bcr &= ~ConXS_BCR_CF_RESET; 293 BCR_writew(trizeps_conxs_bcr); 294 udelay(2000); 295 } else { 296 /* put in reset */ 297 trizeps_conxs_bcr |= ConXS_BCR_CF_RESET; 298 BCR_writew(trizeps_conxs_bcr); 299 udelay(1000); 300 /* switch power off */ 301 trizeps_conxs_bcr &= ~0xf; 302 BCR_writew(trizeps_conxs_bcr); 303 } 304 pr_debug("%s: o%s 0x%x\n", __func__, power ? "n" : "ff", 305 trizeps_conxs_bcr); 306} 307EXPORT_SYMBOL(board_pcmcia_power); 308 309/* backlight power switching for LCD panel */ 310static void board_backlight_power(int on) 311{ 312 if (on) 313 trizeps_conxs_bcr |= ConXS_BCR_L_DISP; 314 else 315 trizeps_conxs_bcr &= ~ConXS_BCR_L_DISP; 316 317 pr_debug("%s: o%s 0x%x\n", __func__, on ? "n" : "ff", 318 trizeps_conxs_bcr); 319 BCR_writew(trizeps_conxs_bcr); 320} 321 322/* a I2C based RTC is known on CONXS board */ 323static struct i2c_board_info trizeps4_i2c_devices[] __initdata = { 324 { I2C_BOARD_INFO("rtc-pcf8593", 0x51) } 325}; 326 327/**************************************************************************** 328 * MMC card slot external to module 329 ****************************************************************************/ 330static int trizeps4_mci_init(struct device *dev, irq_handler_t mci_detect_int, 331 void *data) 332{ 333 int err; 334 335 err = request_irq(TRIZEPS4_MMC_IRQ, mci_detect_int, 336 IRQF_TRIGGER_RISING, "MMC card detect", data); 337 if (err) { 338 printk(KERN_ERR "trizeps4_mci_init: MMC/SD: can't request" 339 "MMC card detect IRQ\n"); 340 return -1; 341 } 342 return 0; 343} 344 345static void trizeps4_mci_exit(struct device *dev, void *data) 346{ 347 free_irq(TRIZEPS4_MMC_IRQ, data); 348} 349 350static struct pxamci_platform_data trizeps4_mci_platform_data = { 351 .ocr_mask = MMC_VDD_32_33|MMC_VDD_33_34, 352 .detect_delay_ms= 10, 353 .init = trizeps4_mci_init, 354 .exit = trizeps4_mci_exit, 355 .get_ro = NULL, /* write-protection not supported */ 356 .setpower = NULL, /* power-switching not supported */ 357 .gpio_card_detect = -1, 358 .gpio_card_ro = -1, 359 .gpio_power = -1, 360}; 361 362/**************************************************************************** 363 * IRDA mode switching on stuart 364 ****************************************************************************/ 365#ifndef STATUS_LEDS_ON_STUART_PINS 366static short trizeps_conxs_ircr; 367 368static int trizeps4_irda_startup(struct device *dev) 369{ 370 trizeps_conxs_ircr &= ~ConXS_IRCR_SD; 371 IRCR_writew(trizeps_conxs_ircr); 372 return 0; 373} 374 375static void trizeps4_irda_shutdown(struct device *dev) 376{ 377 trizeps_conxs_ircr |= ConXS_IRCR_SD; 378 IRCR_writew(trizeps_conxs_ircr); 379} 380 381static void trizeps4_irda_transceiver_mode(struct device *dev, int mode) 382{ 383 unsigned long flags; 384 385 local_irq_save(flags); 386 /* Switch mode */ 387 if (mode & IR_SIRMODE) 388 trizeps_conxs_ircr &= ~ConXS_IRCR_MODE; /* Slow mode */ 389 else if (mode & IR_FIRMODE) 390 trizeps_conxs_ircr |= ConXS_IRCR_MODE; /* Fast mode */ 391 392 /* Switch power */ 393 if (mode & IR_OFF) 394 trizeps_conxs_ircr |= ConXS_IRCR_SD; 395 else 396 trizeps_conxs_ircr &= ~ConXS_IRCR_SD; 397 398 IRCR_writew(trizeps_conxs_ircr); 399 local_irq_restore(flags); 400 401 pxa2xx_transceiver_mode(dev, mode); 402} 403 404static struct pxaficp_platform_data trizeps4_ficp_platform_data = { 405 .gpio_pwdown = -1, 406 .transceiver_cap = IR_SIRMODE | IR_FIRMODE | IR_OFF, 407 .transceiver_mode = trizeps4_irda_transceiver_mode, 408 .startup = trizeps4_irda_startup, 409 .shutdown = trizeps4_irda_shutdown, 410}; 411#endif 412 413/**************************************************************************** 414 * OHCI USB port 415 ****************************************************************************/ 416static struct pxaohci_platform_data trizeps4_ohci_platform_data = { 417 .port_mode = PMM_PERPORT_MODE, 418 .flags = ENABLE_PORT_ALL | POWER_CONTROL_LOW | POWER_SENSE_LOW, 419}; 420 421static struct map_desc trizeps4_io_desc[] __initdata = { 422 { /* ConXS CFSR */ 423 .virtual = TRIZEPS4_CFSR_VIRT, 424 .pfn = __phys_to_pfn(TRIZEPS4_CFSR_PHYS), 425 .length = 0x00001000, 426 .type = MT_DEVICE 427 }, 428 { /* ConXS BCR */ 429 .virtual = TRIZEPS4_BOCR_VIRT, 430 .pfn = __phys_to_pfn(TRIZEPS4_BOCR_PHYS), 431 .length = 0x00001000, 432 .type = MT_DEVICE 433 }, 434 { /* ConXS IRCR */ 435 .virtual = TRIZEPS4_IRCR_VIRT, 436 .pfn = __phys_to_pfn(TRIZEPS4_IRCR_PHYS), 437 .length = 0x00001000, 438 .type = MT_DEVICE 439 }, 440 { /* ConXS DCR */ 441 .virtual = TRIZEPS4_DICR_VIRT, 442 .pfn = __phys_to_pfn(TRIZEPS4_DICR_PHYS), 443 .length = 0x00001000, 444 .type = MT_DEVICE 445 }, 446 { /* ConXS UPSR */ 447 .virtual = TRIZEPS4_UPSR_VIRT, 448 .pfn = __phys_to_pfn(TRIZEPS4_UPSR_PHYS), 449 .length = 0x00001000, 450 .type = MT_DEVICE 451 } 452}; 453 454static struct pxafb_mode_info sharp_lcd_mode = { 455 .pixclock = 78000, 456 .xres = 640, 457 .yres = 480, 458 .bpp = 8, 459 .hsync_len = 4, 460 .left_margin = 4, 461 .right_margin = 4, 462 .vsync_len = 2, 463 .upper_margin = 0, 464 .lower_margin = 0, 465 .sync = FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT, 466 .cmap_greyscale = 0, 467}; 468 469static struct pxafb_mach_info sharp_lcd = { 470 .modes = &sharp_lcd_mode, 471 .num_modes = 1, 472 .lcd_conn = LCD_COLOR_DSTN_16BPP | LCD_PCLK_EDGE_FALL, 473 .cmap_inverse = 0, 474 .cmap_static = 0, 475 .pxafb_backlight_power = board_backlight_power, 476}; 477 478static struct pxafb_mode_info toshiba_lcd_mode = { 479 .pixclock = 39720, 480 .xres = 640, 481 .yres = 480, 482 .bpp = 8, 483 .hsync_len = 63, 484 .left_margin = 12, 485 .right_margin = 12, 486 .vsync_len = 4, 487 .upper_margin = 32, 488 .lower_margin = 10, 489 .sync = 0, 490 .cmap_greyscale = 0, 491}; 492 493static struct pxafb_mach_info toshiba_lcd = { 494 .modes = &toshiba_lcd_mode, 495 .num_modes = 1, 496 .lcd_conn = (LCD_COLOR_TFT_16BPP | LCD_PCLK_EDGE_FALL), 497 .cmap_inverse = 0, 498 .cmap_static = 0, 499 .pxafb_backlight_power = board_backlight_power, 500}; 501 502static void __init trizeps4_init(void) 503{ 504 pxa2xx_mfp_config(ARRAY_AND_SIZE(trizeps4_pin_config)); 505 if (machine_is_trizeps4wl()) { 506 pxa2xx_mfp_config(ARRAY_AND_SIZE(trizeps4wl_pin_config)); 507 platform_add_devices(trizeps4wl_devices, 508 ARRAY_SIZE(trizeps4wl_devices)); 509 } else { 510 platform_add_devices(trizeps4_devices, 511 ARRAY_SIZE(trizeps4_devices)); 512 } 513 514 pxa_set_ffuart_info(NULL); 515 pxa_set_btuart_info(NULL); 516 pxa_set_stuart_info(NULL); 517 518 if (0) /* dont know how to determine LCD */ 519 pxa_set_fb_info(NULL, &sharp_lcd); 520 else 521 pxa_set_fb_info(NULL, &toshiba_lcd); 522 523 pxa_set_mci_info(&trizeps4_mci_platform_data); 524#ifndef STATUS_LEDS_ON_STUART_PINS 525 pxa_set_ficp_info(&trizeps4_ficp_platform_data); 526#endif 527 pxa_set_ohci_info(&trizeps4_ohci_platform_data); 528 pxa_set_ac97_info(NULL); 529 pxa_set_i2c_info(NULL); 530 i2c_register_board_info(0, trizeps4_i2c_devices, 531 ARRAY_SIZE(trizeps4_i2c_devices)); 532 533 /* this is the reset value */ 534 trizeps_conxs_bcr = 0x00A0; 535 536 BCR_writew(trizeps_conxs_bcr); 537 board_backlight_power(1); 538 539 regulator_has_full_constraints(); 540} 541 542static void __init trizeps4_map_io(void) 543{ 544 pxa27x_map_io(); 545 iotable_init(trizeps4_io_desc, ARRAY_SIZE(trizeps4_io_desc)); 546 547 if ((__raw_readl(MSC0) & 0x8) && (__raw_readl(BOOT_DEF) & 0x1)) { 548 /* if flash is 16 bit wide its a Trizeps4 WL */ 549 __machine_arch_type = MACH_TYPE_TRIZEPS4WL; 550 trizeps4_flash_data[0].width = 2; 551 } else { 552 /* if flash is 32 bit wide its a Trizeps4 */ 553 __machine_arch_type = MACH_TYPE_TRIZEPS4; 554 trizeps4_flash_data[0].width = 4; 555 } 556} 557 558MACHINE_START(TRIZEPS4, "Keith und Koep Trizeps IV module") 559 /* MAINTAINER("Jürgen Schindele") */ 560 .atag_offset = 0x100, 561 .init_machine = trizeps4_init, 562 .map_io = trizeps4_map_io, 563 .nr_irqs = PXA_NR_IRQS, 564 .init_irq = pxa27x_init_irq, 565 .handle_irq = pxa27x_handle_irq, 566 .init_time = pxa_timer_init, 567 .restart = pxa_restart, 568MACHINE_END 569 570MACHINE_START(TRIZEPS4WL, "Keith und Koep Trizeps IV-WL module") 571 /* MAINTAINER("Jürgen Schindele") */ 572 .atag_offset = 0x100, 573 .init_machine = trizeps4_init, 574 .map_io = trizeps4_map_io, 575 .nr_irqs = PXA_NR_IRQS, 576 .init_irq = pxa27x_init_irq, 577 .handle_irq = pxa27x_handle_irq, 578 .init_time = pxa_timer_init, 579 .restart = pxa_restart, 580MACHINE_END 581