| 1 | /* |
| 2 | * linux/arch/arm/mach-pxa/lubbock.c |
| 3 | * |
| 4 | * Support for the Intel DBPXA250 Development Platform. |
| 5 | * |
| 6 | * Author: Nicolas Pitre |
| 7 | * Created: Jun 15, 2001 |
| 8 | * Copyright: MontaVista Software Inc. |
| 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 | #include <linux/gpio.h> |
| 15 | #include <linux/module.h> |
| 16 | #include <linux/kernel.h> |
| 17 | #include <linux/init.h> |
| 18 | #include <linux/io.h> |
| 19 | #include <linux/platform_device.h> |
| 20 | #include <linux/syscore_ops.h> |
| 21 | #include <linux/major.h> |
| 22 | #include <linux/fb.h> |
| 23 | #include <linux/interrupt.h> |
| 24 | #include <linux/mtd/mtd.h> |
| 25 | #include <linux/mtd/partitions.h> |
| 26 | #include <linux/smc91x.h> |
| 27 | #include <linux/slab.h> |
| 28 | #include <linux/leds.h> |
| 29 | |
| 30 | #include <linux/spi/spi.h> |
| 31 | #include <linux/spi/ads7846.h> |
| 32 | #include <linux/spi/pxa2xx_spi.h> |
| 33 | |
| 34 | #include <asm/setup.h> |
| 35 | #include <asm/memory.h> |
| 36 | #include <asm/mach-types.h> |
| 37 | #include <mach/hardware.h> |
| 38 | #include <asm/irq.h> |
| 39 | #include <asm/sizes.h> |
| 40 | |
| 41 | #include <asm/mach/arch.h> |
| 42 | #include <asm/mach/map.h> |
| 43 | #include <asm/mach/irq.h> |
| 44 | #include <asm/mach/flash.h> |
| 45 | |
| 46 | #include <asm/hardware/sa1111.h> |
| 47 | |
| 48 | #include <mach/pxa25x.h> |
| 49 | #include <mach/audio.h> |
| 50 | #include <mach/lubbock.h> |
| 51 | #include <mach/udc.h> |
| 52 | #include <linux/platform_data/irda-pxaficp.h> |
| 53 | #include <linux/platform_data/video-pxafb.h> |
| 54 | #include <linux/platform_data/mmc-pxamci.h> |
| 55 | #include <mach/pm.h> |
| 56 | #include <mach/smemc.h> |
| 57 | |
| 58 | #include "generic.h" |
| 59 | #include "devices.h" |
| 60 | |
| 61 | static unsigned long lubbock_pin_config[] __initdata = { |
| 62 | GPIO15_nCS_1, /* CS1 - Flash */ |
| 63 | GPIO78_nCS_2, /* CS2 - Baseboard FGPA */ |
| 64 | GPIO79_nCS_3, /* CS3 - SMC ethernet */ |
| 65 | GPIO80_nCS_4, /* CS4 - SA1111 */ |
| 66 | |
| 67 | /* SSP data pins */ |
| 68 | GPIO23_SSP1_SCLK, |
| 69 | GPIO25_SSP1_TXD, |
| 70 | GPIO26_SSP1_RXD, |
| 71 | |
| 72 | /* AC97 */ |
| 73 | GPIO28_AC97_BITCLK, |
| 74 | GPIO29_AC97_SDATA_IN_0, |
| 75 | GPIO30_AC97_SDATA_OUT, |
| 76 | GPIO31_AC97_SYNC, |
| 77 | |
| 78 | /* LCD - 16bpp DSTN */ |
| 79 | GPIOxx_LCD_DSTN_16BPP, |
| 80 | |
| 81 | /* BTUART */ |
| 82 | GPIO42_BTUART_RXD, |
| 83 | GPIO43_BTUART_TXD, |
| 84 | GPIO44_BTUART_CTS, |
| 85 | GPIO45_BTUART_RTS, |
| 86 | |
| 87 | /* PC Card */ |
| 88 | GPIO48_nPOE, |
| 89 | GPIO49_nPWE, |
| 90 | GPIO50_nPIOR, |
| 91 | GPIO51_nPIOW, |
| 92 | GPIO52_nPCE_1, |
| 93 | GPIO53_nPCE_2, |
| 94 | GPIO54_nPSKTSEL, |
| 95 | GPIO55_nPREG, |
| 96 | GPIO56_nPWAIT, |
| 97 | GPIO57_nIOIS16, |
| 98 | |
| 99 | /* MMC */ |
| 100 | GPIO6_MMC_CLK, |
| 101 | GPIO8_MMC_CS0, |
| 102 | |
| 103 | /* SA1111 chip */ |
| 104 | GPIO11_3_6MHz, |
| 105 | |
| 106 | /* wakeup */ |
| 107 | GPIO1_GPIO | WAKEUP_ON_EDGE_RISE, |
| 108 | }; |
| 109 | |
| 110 | #define LUB_HEXLED __LUB_REG(LUBBOCK_FPGA_PHYS + 0x010) |
| 111 | #define LUB_MISC_WR __LUB_REG(LUBBOCK_FPGA_PHYS + 0x080) |
| 112 | |
| 113 | void lubbock_set_hexled(uint32_t value) |
| 114 | { |
| 115 | LUB_HEXLED = value; |
| 116 | } |
| 117 | |
| 118 | void lubbock_set_misc_wr(unsigned int mask, unsigned int set) |
| 119 | { |
| 120 | unsigned long flags; |
| 121 | |
| 122 | local_irq_save(flags); |
| 123 | LUB_MISC_WR = (LUB_MISC_WR & ~mask) | (set & mask); |
| 124 | local_irq_restore(flags); |
| 125 | } |
| 126 | EXPORT_SYMBOL(lubbock_set_misc_wr); |
| 127 | |
| 128 | static unsigned long lubbock_irq_enabled; |
| 129 | |
| 130 | static void lubbock_mask_irq(struct irq_data *d) |
| 131 | { |
| 132 | int lubbock_irq = (d->irq - LUBBOCK_IRQ(0)); |
| 133 | LUB_IRQ_MASK_EN = (lubbock_irq_enabled &= ~(1 << lubbock_irq)); |
| 134 | } |
| 135 | |
| 136 | static void lubbock_unmask_irq(struct irq_data *d) |
| 137 | { |
| 138 | int lubbock_irq = (d->irq - LUBBOCK_IRQ(0)); |
| 139 | /* the irq can be acknowledged only if deasserted, so it's done here */ |
| 140 | LUB_IRQ_SET_CLR &= ~(1 << lubbock_irq); |
| 141 | LUB_IRQ_MASK_EN = (lubbock_irq_enabled |= (1 << lubbock_irq)); |
| 142 | } |
| 143 | |
| 144 | static struct irq_chip lubbock_irq_chip = { |
| 145 | .name = "FPGA", |
| 146 | .irq_ack = lubbock_mask_irq, |
| 147 | .irq_mask = lubbock_mask_irq, |
| 148 | .irq_unmask = lubbock_unmask_irq, |
| 149 | }; |
| 150 | |
| 151 | static void lubbock_irq_handler(unsigned int irq, struct irq_desc *desc) |
| 152 | { |
| 153 | unsigned long pending = LUB_IRQ_SET_CLR & lubbock_irq_enabled; |
| 154 | do { |
| 155 | /* clear our parent irq */ |
| 156 | desc->irq_data.chip->irq_ack(&desc->irq_data); |
| 157 | if (likely(pending)) { |
| 158 | irq = LUBBOCK_IRQ(0) + __ffs(pending); |
| 159 | generic_handle_irq(irq); |
| 160 | } |
| 161 | pending = LUB_IRQ_SET_CLR & lubbock_irq_enabled; |
| 162 | } while (pending); |
| 163 | } |
| 164 | |
| 165 | static void __init lubbock_init_irq(void) |
| 166 | { |
| 167 | int irq; |
| 168 | |
| 169 | pxa25x_init_irq(); |
| 170 | |
| 171 | /* setup extra lubbock irqs */ |
| 172 | for (irq = LUBBOCK_IRQ(0); irq <= LUBBOCK_LAST_IRQ; irq++) { |
| 173 | irq_set_chip_and_handler(irq, &lubbock_irq_chip, |
| 174 | handle_level_irq); |
| 175 | set_irq_flags(irq, IRQF_VALID | IRQF_PROBE); |
| 176 | } |
| 177 | |
| 178 | irq_set_chained_handler(PXA_GPIO_TO_IRQ(0), lubbock_irq_handler); |
| 179 | irq_set_irq_type(PXA_GPIO_TO_IRQ(0), IRQ_TYPE_EDGE_FALLING); |
| 180 | } |
| 181 | |
| 182 | #ifdef CONFIG_PM |
| 183 | |
| 184 | static void lubbock_irq_resume(void) |
| 185 | { |
| 186 | LUB_IRQ_MASK_EN = lubbock_irq_enabled; |
| 187 | } |
| 188 | |
| 189 | static struct syscore_ops lubbock_irq_syscore_ops = { |
| 190 | .resume = lubbock_irq_resume, |
| 191 | }; |
| 192 | |
| 193 | static int __init lubbock_irq_device_init(void) |
| 194 | { |
| 195 | if (machine_is_lubbock()) { |
| 196 | register_syscore_ops(&lubbock_irq_syscore_ops); |
| 197 | return 0; |
| 198 | } |
| 199 | return -ENODEV; |
| 200 | } |
| 201 | |
| 202 | device_initcall(lubbock_irq_device_init); |
| 203 | |
| 204 | #endif |
| 205 | |
| 206 | static int lubbock_udc_is_connected(void) |
| 207 | { |
| 208 | return (LUB_MISC_RD & (1 << 9)) == 0; |
| 209 | } |
| 210 | |
| 211 | static struct pxa2xx_udc_mach_info udc_info __initdata = { |
| 212 | .udc_is_connected = lubbock_udc_is_connected, |
| 213 | // no D+ pullup; lubbock can't connect/disconnect in software |
| 214 | }; |
| 215 | |
| 216 | static struct resource sa1111_resources[] = { |
| 217 | [0] = { |
| 218 | .start = 0x10000000, |
| 219 | .end = 0x10001fff, |
| 220 | .flags = IORESOURCE_MEM, |
| 221 | }, |
| 222 | [1] = { |
| 223 | .start = LUBBOCK_SA1111_IRQ, |
| 224 | .end = LUBBOCK_SA1111_IRQ, |
| 225 | .flags = IORESOURCE_IRQ, |
| 226 | }, |
| 227 | }; |
| 228 | |
| 229 | static struct sa1111_platform_data sa1111_info = { |
| 230 | .irq_base = LUBBOCK_SA1111_IRQ_BASE, |
| 231 | .disable_devs = SA1111_DEVID_SAC, |
| 232 | }; |
| 233 | |
| 234 | static struct platform_device sa1111_device = { |
| 235 | .name = "sa1111", |
| 236 | .id = -1, |
| 237 | .num_resources = ARRAY_SIZE(sa1111_resources), |
| 238 | .resource = sa1111_resources, |
| 239 | .dev = { |
| 240 | .platform_data = &sa1111_info, |
| 241 | }, |
| 242 | }; |
| 243 | |
| 244 | /* ADS7846 is connected through SSP ... and if your board has J5 populated, |
| 245 | * you can select it to replace the ucb1400 by switching the touchscreen cable |
| 246 | * (to J5) and poking board registers (as done below). Else it's only useful |
| 247 | * for the temperature sensors. |
| 248 | */ |
| 249 | static struct pxa2xx_spi_master pxa_ssp_master_info = { |
| 250 | .num_chipselect = 1, |
| 251 | }; |
| 252 | |
| 253 | static int lubbock_ads7846_pendown_state(void) |
| 254 | { |
| 255 | /* TS_BUSY is bit 8 in LUB_MISC_RD, but pendown is irq-only */ |
| 256 | return 0; |
| 257 | } |
| 258 | |
| 259 | static struct ads7846_platform_data ads_info = { |
| 260 | .model = 7846, |
| 261 | .vref_delay_usecs = 100, /* internal, no cap */ |
| 262 | .get_pendown_state = lubbock_ads7846_pendown_state, |
| 263 | // .x_plate_ohms = 500, /* GUESS! */ |
| 264 | // .y_plate_ohms = 500, /* GUESS! */ |
| 265 | }; |
| 266 | |
| 267 | static void ads7846_cs(u32 command) |
| 268 | { |
| 269 | static const unsigned TS_nCS = 1 << 11; |
| 270 | lubbock_set_misc_wr(TS_nCS, (command == PXA2XX_CS_ASSERT) ? 0 : TS_nCS); |
| 271 | } |
| 272 | |
| 273 | static struct pxa2xx_spi_chip ads_hw = { |
| 274 | .tx_threshold = 1, |
| 275 | .rx_threshold = 2, |
| 276 | .cs_control = ads7846_cs, |
| 277 | }; |
| 278 | |
| 279 | static struct spi_board_info spi_board_info[] __initdata = { { |
| 280 | .modalias = "ads7846", |
| 281 | .platform_data = &ads_info, |
| 282 | .controller_data = &ads_hw, |
| 283 | .irq = LUBBOCK_BB_IRQ, |
| 284 | .max_speed_hz = 120000 /* max sample rate at 3V */ |
| 285 | * 26 /* command + data + overhead */, |
| 286 | .bus_num = 1, |
| 287 | .chip_select = 0, |
| 288 | }, |
| 289 | }; |
| 290 | |
| 291 | static struct resource smc91x_resources[] = { |
| 292 | [0] = { |
| 293 | .name = "smc91x-regs", |
| 294 | .start = 0x0c000c00, |
| 295 | .end = 0x0c0fffff, |
| 296 | .flags = IORESOURCE_MEM, |
| 297 | }, |
| 298 | [1] = { |
| 299 | .start = LUBBOCK_ETH_IRQ, |
| 300 | .end = LUBBOCK_ETH_IRQ, |
| 301 | .flags = IORESOURCE_IRQ | IORESOURCE_IRQ_HIGHEDGE, |
| 302 | }, |
| 303 | [2] = { |
| 304 | .name = "smc91x-attrib", |
| 305 | .start = 0x0e000000, |
| 306 | .end = 0x0e0fffff, |
| 307 | .flags = IORESOURCE_MEM, |
| 308 | }, |
| 309 | }; |
| 310 | |
| 311 | static struct smc91x_platdata lubbock_smc91x_info = { |
| 312 | .flags = SMC91X_USE_16BIT | SMC91X_NOWAIT | SMC91X_IO_SHIFT_2, |
| 313 | }; |
| 314 | |
| 315 | static struct platform_device smc91x_device = { |
| 316 | .name = "smc91x", |
| 317 | .id = -1, |
| 318 | .num_resources = ARRAY_SIZE(smc91x_resources), |
| 319 | .resource = smc91x_resources, |
| 320 | .dev = { |
| 321 | .platform_data = &lubbock_smc91x_info, |
| 322 | }, |
| 323 | }; |
| 324 | |
| 325 | static struct resource flash_resources[] = { |
| 326 | [0] = { |
| 327 | .start = 0x00000000, |
| 328 | .end = SZ_64M - 1, |
| 329 | .flags = IORESOURCE_MEM, |
| 330 | }, |
| 331 | [1] = { |
| 332 | .start = 0x04000000, |
| 333 | .end = 0x04000000 + SZ_64M - 1, |
| 334 | .flags = IORESOURCE_MEM, |
| 335 | }, |
| 336 | }; |
| 337 | |
| 338 | static struct mtd_partition lubbock_partitions[] = { |
| 339 | { |
| 340 | .name = "Bootloader", |
| 341 | .size = 0x00040000, |
| 342 | .offset = 0, |
| 343 | .mask_flags = MTD_WRITEABLE /* force read-only */ |
| 344 | },{ |
| 345 | .name = "Kernel", |
| 346 | .size = 0x00100000, |
| 347 | .offset = 0x00040000, |
| 348 | },{ |
| 349 | .name = "Filesystem", |
| 350 | .size = MTDPART_SIZ_FULL, |
| 351 | .offset = 0x00140000 |
| 352 | } |
| 353 | }; |
| 354 | |
| 355 | static struct flash_platform_data lubbock_flash_data[2] = { |
| 356 | { |
| 357 | .map_name = "cfi_probe", |
| 358 | .parts = lubbock_partitions, |
| 359 | .nr_parts = ARRAY_SIZE(lubbock_partitions), |
| 360 | }, { |
| 361 | .map_name = "cfi_probe", |
| 362 | .parts = NULL, |
| 363 | .nr_parts = 0, |
| 364 | } |
| 365 | }; |
| 366 | |
| 367 | static struct platform_device lubbock_flash_device[2] = { |
| 368 | { |
| 369 | .name = "pxa2xx-flash", |
| 370 | .id = 0, |
| 371 | .dev = { |
| 372 | .platform_data = &lubbock_flash_data[0], |
| 373 | }, |
| 374 | .resource = &flash_resources[0], |
| 375 | .num_resources = 1, |
| 376 | }, |
| 377 | { |
| 378 | .name = "pxa2xx-flash", |
| 379 | .id = 1, |
| 380 | .dev = { |
| 381 | .platform_data = &lubbock_flash_data[1], |
| 382 | }, |
| 383 | .resource = &flash_resources[1], |
| 384 | .num_resources = 1, |
| 385 | }, |
| 386 | }; |
| 387 | |
| 388 | static struct platform_device *devices[] __initdata = { |
| 389 | &sa1111_device, |
| 390 | &smc91x_device, |
| 391 | &lubbock_flash_device[0], |
| 392 | &lubbock_flash_device[1], |
| 393 | }; |
| 394 | |
| 395 | static struct pxafb_mode_info sharp_lm8v31_mode = { |
| 396 | .pixclock = 270000, |
| 397 | .xres = 640, |
| 398 | .yres = 480, |
| 399 | .bpp = 16, |
| 400 | .hsync_len = 1, |
| 401 | .left_margin = 3, |
| 402 | .right_margin = 3, |
| 403 | .vsync_len = 1, |
| 404 | .upper_margin = 0, |
| 405 | .lower_margin = 0, |
| 406 | .sync = FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT, |
| 407 | .cmap_greyscale = 0, |
| 408 | }; |
| 409 | |
| 410 | static struct pxafb_mach_info sharp_lm8v31 = { |
| 411 | .modes = &sharp_lm8v31_mode, |
| 412 | .num_modes = 1, |
| 413 | .cmap_inverse = 0, |
| 414 | .cmap_static = 0, |
| 415 | .lcd_conn = LCD_COLOR_DSTN_16BPP | LCD_PCLK_EDGE_FALL | |
| 416 | LCD_AC_BIAS_FREQ(255), |
| 417 | }; |
| 418 | |
| 419 | #define MMC_POLL_RATE msecs_to_jiffies(1000) |
| 420 | |
| 421 | static void lubbock_mmc_poll(unsigned long); |
| 422 | static irq_handler_t mmc_detect_int; |
| 423 | |
| 424 | static struct timer_list mmc_timer = { |
| 425 | .function = lubbock_mmc_poll, |
| 426 | }; |
| 427 | |
| 428 | static void lubbock_mmc_poll(unsigned long data) |
| 429 | { |
| 430 | unsigned long flags; |
| 431 | |
| 432 | /* clear any previous irq state, then ... */ |
| 433 | local_irq_save(flags); |
| 434 | LUB_IRQ_SET_CLR &= ~(1 << 0); |
| 435 | local_irq_restore(flags); |
| 436 | |
| 437 | /* poll until mmc/sd card is removed */ |
| 438 | if (LUB_IRQ_SET_CLR & (1 << 0)) |
| 439 | mod_timer(&mmc_timer, jiffies + MMC_POLL_RATE); |
| 440 | else { |
| 441 | (void) mmc_detect_int(LUBBOCK_SD_IRQ, (void *)data); |
| 442 | enable_irq(LUBBOCK_SD_IRQ); |
| 443 | } |
| 444 | } |
| 445 | |
| 446 | static irqreturn_t lubbock_detect_int(int irq, void *data) |
| 447 | { |
| 448 | /* IRQ is level triggered; disable, and poll for removal */ |
| 449 | disable_irq(irq); |
| 450 | mod_timer(&mmc_timer, jiffies + MMC_POLL_RATE); |
| 451 | |
| 452 | return mmc_detect_int(irq, data); |
| 453 | } |
| 454 | |
| 455 | static int lubbock_mci_init(struct device *dev, |
| 456 | irq_handler_t detect_int, |
| 457 | void *data) |
| 458 | { |
| 459 | /* detect card insert/eject */ |
| 460 | mmc_detect_int = detect_int; |
| 461 | init_timer(&mmc_timer); |
| 462 | mmc_timer.data = (unsigned long) data; |
| 463 | return request_irq(LUBBOCK_SD_IRQ, lubbock_detect_int, |
| 464 | 0, "lubbock-sd-detect", data); |
| 465 | } |
| 466 | |
| 467 | static int lubbock_mci_get_ro(struct device *dev) |
| 468 | { |
| 469 | return (LUB_MISC_RD & (1 << 2)) != 0; |
| 470 | } |
| 471 | |
| 472 | static void lubbock_mci_exit(struct device *dev, void *data) |
| 473 | { |
| 474 | free_irq(LUBBOCK_SD_IRQ, data); |
| 475 | del_timer_sync(&mmc_timer); |
| 476 | } |
| 477 | |
| 478 | static struct pxamci_platform_data lubbock_mci_platform_data = { |
| 479 | .ocr_mask = MMC_VDD_32_33|MMC_VDD_33_34, |
| 480 | .detect_delay_ms = 10, |
| 481 | .init = lubbock_mci_init, |
| 482 | .get_ro = lubbock_mci_get_ro, |
| 483 | .exit = lubbock_mci_exit, |
| 484 | .gpio_card_detect = -1, |
| 485 | .gpio_card_ro = -1, |
| 486 | .gpio_power = -1, |
| 487 | }; |
| 488 | |
| 489 | static void lubbock_irda_transceiver_mode(struct device *dev, int mode) |
| 490 | { |
| 491 | unsigned long flags; |
| 492 | |
| 493 | local_irq_save(flags); |
| 494 | if (mode & IR_SIRMODE) { |
| 495 | LUB_MISC_WR &= ~(1 << 4); |
| 496 | } else if (mode & IR_FIRMODE) { |
| 497 | LUB_MISC_WR |= 1 << 4; |
| 498 | } |
| 499 | pxa2xx_transceiver_mode(dev, mode); |
| 500 | local_irq_restore(flags); |
| 501 | } |
| 502 | |
| 503 | static struct pxaficp_platform_data lubbock_ficp_platform_data = { |
| 504 | .gpio_pwdown = -1, |
| 505 | .transceiver_cap = IR_SIRMODE | IR_FIRMODE, |
| 506 | .transceiver_mode = lubbock_irda_transceiver_mode, |
| 507 | }; |
| 508 | |
| 509 | static void __init lubbock_init(void) |
| 510 | { |
| 511 | int flashboot = (LUB_CONF_SWITCHES & 1); |
| 512 | |
| 513 | pxa2xx_mfp_config(ARRAY_AND_SIZE(lubbock_pin_config)); |
| 514 | |
| 515 | pxa_set_ffuart_info(NULL); |
| 516 | pxa_set_btuart_info(NULL); |
| 517 | pxa_set_stuart_info(NULL); |
| 518 | |
| 519 | clk_add_alias("SA1111_CLK", NULL, "GPIO11_CLK", NULL); |
| 520 | pxa_set_udc_info(&udc_info); |
| 521 | pxa_set_fb_info(NULL, &sharp_lm8v31); |
| 522 | pxa_set_mci_info(&lubbock_mci_platform_data); |
| 523 | pxa_set_ficp_info(&lubbock_ficp_platform_data); |
| 524 | pxa_set_ac97_info(NULL); |
| 525 | |
| 526 | lubbock_flash_data[0].width = lubbock_flash_data[1].width = |
| 527 | (__raw_readl(BOOT_DEF) & 1) ? 2 : 4; |
| 528 | /* Compensate for the nROMBT switch which swaps the flash banks */ |
| 529 | printk(KERN_NOTICE "Lubbock configured to boot from %s (bank %d)\n", |
| 530 | flashboot?"Flash":"ROM", flashboot); |
| 531 | |
| 532 | lubbock_flash_data[flashboot^1].name = "application-flash"; |
| 533 | lubbock_flash_data[flashboot].name = "boot-rom"; |
| 534 | (void) platform_add_devices(devices, ARRAY_SIZE(devices)); |
| 535 | |
| 536 | pxa2xx_set_spi_info(1, &pxa_ssp_master_info); |
| 537 | spi_register_board_info(spi_board_info, ARRAY_SIZE(spi_board_info)); |
| 538 | } |
| 539 | |
| 540 | static struct map_desc lubbock_io_desc[] __initdata = { |
| 541 | { /* CPLD */ |
| 542 | .virtual = LUBBOCK_FPGA_VIRT, |
| 543 | .pfn = __phys_to_pfn(LUBBOCK_FPGA_PHYS), |
| 544 | .length = 0x00100000, |
| 545 | .type = MT_DEVICE |
| 546 | } |
| 547 | }; |
| 548 | |
| 549 | static void __init lubbock_map_io(void) |
| 550 | { |
| 551 | pxa25x_map_io(); |
| 552 | iotable_init(lubbock_io_desc, ARRAY_SIZE(lubbock_io_desc)); |
| 553 | |
| 554 | PCFR |= PCFR_OPDE; |
| 555 | } |
| 556 | |
| 557 | /* |
| 558 | * Driver for the 8 discrete LEDs available for general use: |
| 559 | * Note: bits [15-8] are used to enable/blank the 8 7 segment hex displays |
| 560 | * so be sure to not monkey with them here. |
| 561 | */ |
| 562 | |
| 563 | #if defined(CONFIG_NEW_LEDS) && defined(CONFIG_LEDS_CLASS) |
| 564 | struct lubbock_led { |
| 565 | struct led_classdev cdev; |
| 566 | u8 mask; |
| 567 | }; |
| 568 | |
| 569 | /* |
| 570 | * The triggers lines up below will only be used if the |
| 571 | * LED triggers are compiled in. |
| 572 | */ |
| 573 | static const struct { |
| 574 | const char *name; |
| 575 | const char *trigger; |
| 576 | } lubbock_leds[] = { |
| 577 | { "lubbock:D28", "default-on", }, |
| 578 | { "lubbock:D27", "cpu0", }, |
| 579 | { "lubbock:D26", "heartbeat" }, |
| 580 | { "lubbock:D25", }, |
| 581 | { "lubbock:D24", }, |
| 582 | { "lubbock:D23", }, |
| 583 | { "lubbock:D22", }, |
| 584 | { "lubbock:D21", }, |
| 585 | }; |
| 586 | |
| 587 | static void lubbock_led_set(struct led_classdev *cdev, |
| 588 | enum led_brightness b) |
| 589 | { |
| 590 | struct lubbock_led *led = container_of(cdev, |
| 591 | struct lubbock_led, cdev); |
| 592 | u32 reg = LUB_DISC_BLNK_LED; |
| 593 | |
| 594 | if (b != LED_OFF) |
| 595 | reg |= led->mask; |
| 596 | else |
| 597 | reg &= ~led->mask; |
| 598 | |
| 599 | LUB_DISC_BLNK_LED = reg; |
| 600 | } |
| 601 | |
| 602 | static enum led_brightness lubbock_led_get(struct led_classdev *cdev) |
| 603 | { |
| 604 | struct lubbock_led *led = container_of(cdev, |
| 605 | struct lubbock_led, cdev); |
| 606 | u32 reg = LUB_DISC_BLNK_LED; |
| 607 | |
| 608 | return (reg & led->mask) ? LED_FULL : LED_OFF; |
| 609 | } |
| 610 | |
| 611 | static int __init lubbock_leds_init(void) |
| 612 | { |
| 613 | int i; |
| 614 | |
| 615 | if (!machine_is_lubbock()) |
| 616 | return -ENODEV; |
| 617 | |
| 618 | /* All ON */ |
| 619 | LUB_DISC_BLNK_LED |= 0xff; |
| 620 | for (i = 0; i < ARRAY_SIZE(lubbock_leds); i++) { |
| 621 | struct lubbock_led *led; |
| 622 | |
| 623 | led = kzalloc(sizeof(*led), GFP_KERNEL); |
| 624 | if (!led) |
| 625 | break; |
| 626 | |
| 627 | led->cdev.name = lubbock_leds[i].name; |
| 628 | led->cdev.brightness_set = lubbock_led_set; |
| 629 | led->cdev.brightness_get = lubbock_led_get; |
| 630 | led->cdev.default_trigger = lubbock_leds[i].trigger; |
| 631 | led->mask = BIT(i); |
| 632 | |
| 633 | if (led_classdev_register(NULL, &led->cdev) < 0) { |
| 634 | kfree(led); |
| 635 | break; |
| 636 | } |
| 637 | } |
| 638 | |
| 639 | return 0; |
| 640 | } |
| 641 | |
| 642 | /* |
| 643 | * Since we may have triggers on any subsystem, defer registration |
| 644 | * until after subsystem_init. |
| 645 | */ |
| 646 | fs_initcall(lubbock_leds_init); |
| 647 | #endif |
| 648 | |
| 649 | MACHINE_START(LUBBOCK, "Intel DBPXA250 Development Platform (aka Lubbock)") |
| 650 | /* Maintainer: MontaVista Software Inc. */ |
| 651 | .map_io = lubbock_map_io, |
| 652 | .nr_irqs = LUBBOCK_NR_IRQS, |
| 653 | .init_irq = lubbock_init_irq, |
| 654 | .handle_irq = pxa25x_handle_irq, |
| 655 | .init_time = pxa_timer_init, |
| 656 | .init_machine = lubbock_init, |
| 657 | .restart = pxa_restart, |
| 658 | MACHINE_END |