1 /* 2 * Support for Sharp SL-Cxx00 Series of PDAs 3 * Models: SL-C3000 (Spitz), SL-C1000 (Akita) and SL-C3100 (Borzoi) 4 * 5 * Copyright (c) 2005 Richard Purdie 6 * 7 * Based on Sharp's 2.4 kernel patches/lubbock.c 8 * 9 * This program is free software; you can redistribute it and/or modify 10 * it under the terms of the GNU General Public License version 2 as 11 * published by the Free Software Foundation. 12 * 13 */ 14 15 #include <linux/kernel.h> 16 #include <linux/init.h> 17 #include <linux/platform_device.h> 18 #include <linux/delay.h> 19 #include <linux/major.h> 20 #include <linux/fs.h> 21 #include <linux/interrupt.h> 22 #include <linux/mmc/host.h> 23 #include <linux/pm.h> 24 #include <linux/backlight.h> 25 26 #include <asm/setup.h> 27 #include <asm/memory.h> 28 #include <asm/mach-types.h> 29 #include <asm/hardware.h> 30 #include <asm/irq.h> 31 #include <asm/io.h> 32 #include <asm/system.h> 33 34 #include <asm/mach/arch.h> 35 #include <asm/mach/map.h> 36 #include <asm/mach/irq.h> 37 38 #include <asm/arch/pxa-regs.h> 39 #include <asm/arch/irda.h> 40 #include <asm/arch/mmc.h> 41 #include <asm/arch/ohci.h> 42 #include <asm/arch/udc.h> 43 #include <asm/arch/pxafb.h> 44 #include <asm/arch/akita.h> 45 #include <asm/arch/spitz.h> 46 #include <asm/arch/sharpsl.h> 47 48 #include <asm/mach/sharpsl_param.h> 49 #include <asm/hardware/scoop.h> 50 51 #include "generic.h" 52 #include "devices.h" 53 #include "sharpsl.h" 54 55 /* 56 * Spitz SCOOP Device #1 57 */ 58 static struct resource spitz_scoop_resources[] = { 59 [0] = { 60 .start = 0x10800000, 61 .end = 0x10800fff, 62 .flags = IORESOURCE_MEM, 63 }, 64 }; 65 66 static struct scoop_config spitz_scoop_setup = { 67 .io_dir = SPITZ_SCP_IO_DIR, 68 .io_out = SPITZ_SCP_IO_OUT, 69 .suspend_clr = SPITZ_SCP_SUS_CLR, 70 .suspend_set = SPITZ_SCP_SUS_SET, 71 }; 72 73 struct platform_device spitzscoop_device = { 74 .name = "sharp-scoop", 75 .id = 0, 76 .dev = { 77 .platform_data = &spitz_scoop_setup, 78 }, 79 .num_resources = ARRAY_SIZE(spitz_scoop_resources), 80 .resource = spitz_scoop_resources, 81 }; 82 83 /* 84 * Spitz SCOOP Device #2 85 */ 86 static struct resource spitz_scoop2_resources[] = { 87 [0] = { 88 .start = 0x08800040, 89 .end = 0x08800fff, 90 .flags = IORESOURCE_MEM, 91 }, 92 }; 93 94 static struct scoop_config spitz_scoop2_setup = { 95 .io_dir = SPITZ_SCP2_IO_DIR, 96 .io_out = SPITZ_SCP2_IO_OUT, 97 .suspend_clr = SPITZ_SCP2_SUS_CLR, 98 .suspend_set = SPITZ_SCP2_SUS_SET, 99 }; 100 101 struct platform_device spitzscoop2_device = { 102 .name = "sharp-scoop", 103 .id = 1, 104 .dev = { 105 .platform_data = &spitz_scoop2_setup, 106 }, 107 .num_resources = ARRAY_SIZE(spitz_scoop2_resources), 108 .resource = spitz_scoop2_resources, 109 }; 110 111 #define SPITZ_PWR_SD 0x01 112 #define SPITZ_PWR_CF 0x02 113 114 /* Power control is shared with between one of the CF slots and SD */ 115 static void spitz_card_pwr_ctrl(int device, unsigned short new_cpr) 116 { 117 unsigned short cpr = read_scoop_reg(&spitzscoop_device.dev, SCOOP_CPR); 118 119 if (new_cpr & 0x0007) { 120 set_scoop_gpio(&spitzscoop_device.dev, SPITZ_SCP_CF_POWER); 121 if (!(cpr & 0x0002) && !(cpr & 0x0004)) 122 mdelay(5); 123 if (device == SPITZ_PWR_CF) 124 cpr |= 0x0002; 125 if (device == SPITZ_PWR_SD) 126 cpr |= 0x0004; 127 write_scoop_reg(&spitzscoop_device.dev, SCOOP_CPR, cpr | new_cpr); 128 } else { 129 if (device == SPITZ_PWR_CF) 130 cpr &= ~0x0002; 131 if (device == SPITZ_PWR_SD) 132 cpr &= ~0x0004; 133 if (!(cpr & 0x0002) && !(cpr & 0x0004)) { 134 write_scoop_reg(&spitzscoop_device.dev, SCOOP_CPR, 0x0000); 135 mdelay(1); 136 reset_scoop_gpio(&spitzscoop_device.dev, SPITZ_SCP_CF_POWER); 137 } else { 138 write_scoop_reg(&spitzscoop_device.dev, SCOOP_CPR, cpr | new_cpr); 139 } 140 } 141 } 142 143 static void spitz_pcmcia_init(void) 144 { 145 /* Setup default state of GPIO outputs 146 before we enable them as outputs. */ 147 GPSR(GPIO48_nPOE) = GPIO_bit(GPIO48_nPOE) | 148 GPIO_bit(GPIO49_nPWE) | GPIO_bit(GPIO50_nPIOR) | 149 GPIO_bit(GPIO51_nPIOW) | GPIO_bit(GPIO54_nPCE_2); 150 GPSR(GPIO85_nPCE_1) = GPIO_bit(GPIO85_nPCE_1); 151 152 pxa_gpio_mode(GPIO48_nPOE_MD); 153 pxa_gpio_mode(GPIO49_nPWE_MD); 154 pxa_gpio_mode(GPIO50_nPIOR_MD); 155 pxa_gpio_mode(GPIO51_nPIOW_MD); 156 pxa_gpio_mode(GPIO55_nPREG_MD); 157 pxa_gpio_mode(GPIO56_nPWAIT_MD); 158 pxa_gpio_mode(GPIO57_nIOIS16_MD); 159 pxa_gpio_mode(GPIO85_nPCE_1_MD); 160 pxa_gpio_mode(GPIO54_nPCE_2_MD); 161 pxa_gpio_mode(GPIO104_pSKTSEL_MD); 162 } 163 164 static void spitz_pcmcia_pwr(struct device *scoop, unsigned short cpr, int nr) 165 { 166 /* Only need to override behaviour for slot 0 */ 167 if (nr == 0) 168 spitz_card_pwr_ctrl(SPITZ_PWR_CF, cpr); 169 else 170 write_scoop_reg(scoop, SCOOP_CPR, cpr); 171 } 172 173 static struct scoop_pcmcia_dev spitz_pcmcia_scoop[] = { 174 { 175 .dev = &spitzscoop_device.dev, 176 .irq = SPITZ_IRQ_GPIO_CF_IRQ, 177 .cd_irq = SPITZ_IRQ_GPIO_CF_CD, 178 .cd_irq_str = "PCMCIA0 CD", 179 },{ 180 .dev = &spitzscoop2_device.dev, 181 .irq = SPITZ_IRQ_GPIO_CF2_IRQ, 182 .cd_irq = -1, 183 }, 184 }; 185 186 static struct scoop_pcmcia_config spitz_pcmcia_config = { 187 .devs = &spitz_pcmcia_scoop[0], 188 .num_devs = 2, 189 .pcmcia_init = spitz_pcmcia_init, 190 .power_ctrl = spitz_pcmcia_pwr, 191 }; 192 193 EXPORT_SYMBOL(spitzscoop_device); 194 EXPORT_SYMBOL(spitzscoop2_device); 195 196 197 /* 198 * Spitz SSP Device 199 * 200 * Set the parent as the scoop device because a lot of SSP devices 201 * also use scoop functions and this makes the power up/down order 202 * work correctly. 203 */ 204 struct platform_device spitzssp_device = { 205 .name = "corgi-ssp", 206 .dev = { 207 .parent = &spitzscoop_device.dev, 208 }, 209 .id = -1, 210 }; 211 212 struct corgissp_machinfo spitz_ssp_machinfo = { 213 .port = 2, 214 .cs_lcdcon = SPITZ_GPIO_LCDCON_CS, 215 .cs_ads7846 = SPITZ_GPIO_ADS7846_CS, 216 .cs_max1111 = SPITZ_GPIO_MAX1111_CS, 217 .clk_lcdcon = 520, 218 .clk_ads7846 = 14, 219 .clk_max1111 = 56, 220 }; 221 222 223 /* 224 * Spitz Backlight Device 225 */ 226 static void spitz_bl_kick_battery(void) 227 { 228 void (*kick_batt)(void); 229 230 kick_batt = symbol_get(sharpsl_battery_kick); 231 if (kick_batt) { 232 kick_batt(); 233 symbol_put(sharpsl_battery_kick); 234 } 235 } 236 237 static struct generic_bl_info spitz_bl_machinfo = { 238 .name = "corgi-bl", 239 .default_intensity = 0x1f, 240 .limit_mask = 0x0b, 241 .max_intensity = 0x2f, 242 .kick_battery = spitz_bl_kick_battery, 243 }; 244 245 static struct platform_device spitzbl_device = { 246 .name = "generic-bl", 247 .dev = { 248 .platform_data = &spitz_bl_machinfo, 249 }, 250 .id = -1, 251 }; 252 253 254 /* 255 * Spitz Keyboard Device 256 */ 257 static struct platform_device spitzkbd_device = { 258 .name = "spitz-keyboard", 259 .id = -1, 260 }; 261 262 263 /* 264 * Spitz LEDs 265 */ 266 static struct platform_device spitzled_device = { 267 .name = "spitz-led", 268 .id = -1, 269 }; 270 271 /* 272 * Spitz Touch Screen Device 273 */ 274 static struct resource spitzts_resources[] = { 275 [0] = { 276 .start = SPITZ_IRQ_GPIO_TP_INT, 277 .end = SPITZ_IRQ_GPIO_TP_INT, 278 .flags = IORESOURCE_IRQ, 279 }, 280 }; 281 282 static struct corgits_machinfo spitz_ts_machinfo = { 283 .get_hsync_len = spitz_get_hsync_len, 284 .put_hsync = spitz_put_hsync, 285 .wait_hsync = spitz_wait_hsync, 286 }; 287 288 static struct platform_device spitzts_device = { 289 .name = "corgi-ts", 290 .dev = { 291 .parent = &spitzssp_device.dev, 292 .platform_data = &spitz_ts_machinfo, 293 }, 294 .id = -1, 295 .num_resources = ARRAY_SIZE(spitzts_resources), 296 .resource = spitzts_resources, 297 }; 298 299 300 /* 301 * MMC/SD Device 302 * 303 * The card detect interrupt isn't debounced so we delay it by 250ms 304 * to give the card a chance to fully insert/eject. 305 */ 306 307 static struct pxamci_platform_data spitz_mci_platform_data; 308 309 static int spitz_mci_init(struct device *dev, irq_handler_t spitz_detect_int, void *data) 310 { 311 int err; 312 313 /* setup GPIO for PXA27x MMC controller */ 314 pxa_gpio_mode(GPIO32_MMCCLK_MD); 315 pxa_gpio_mode(GPIO112_MMCCMD_MD); 316 pxa_gpio_mode(GPIO92_MMCDAT0_MD); 317 pxa_gpio_mode(GPIO109_MMCDAT1_MD); 318 pxa_gpio_mode(GPIO110_MMCDAT2_MD); 319 pxa_gpio_mode(GPIO111_MMCDAT3_MD); 320 pxa_gpio_mode(SPITZ_GPIO_nSD_DETECT | GPIO_IN); 321 pxa_gpio_mode(SPITZ_GPIO_nSD_WP | GPIO_IN); 322 323 spitz_mci_platform_data.detect_delay = msecs_to_jiffies(250); 324 325 err = request_irq(SPITZ_IRQ_GPIO_nSD_DETECT, spitz_detect_int, 326 IRQF_DISABLED | IRQF_TRIGGER_RISING | IRQF_TRIGGER_FALLING, 327 "MMC card detect", data); 328 if (err) { 329 printk(KERN_ERR "spitz_mci_init: MMC/SD: can't request MMC card detect IRQ\n"); 330 return -1; 331 } 332 333 return 0; 334 } 335 336 static void spitz_mci_setpower(struct device *dev, unsigned int vdd) 337 { 338 struct pxamci_platform_data* p_d = dev->platform_data; 339 340 if (( 1 << vdd) & p_d->ocr_mask) 341 spitz_card_pwr_ctrl(SPITZ_PWR_SD, 0x0004); 342 else 343 spitz_card_pwr_ctrl(SPITZ_PWR_SD, 0x0000); 344 } 345 346 static int spitz_mci_get_ro(struct device *dev) 347 { 348 return GPLR(SPITZ_GPIO_nSD_WP) & GPIO_bit(SPITZ_GPIO_nSD_WP); 349 } 350 351 static void spitz_mci_exit(struct device *dev, void *data) 352 { 353 free_irq(SPITZ_IRQ_GPIO_nSD_DETECT, data); 354 } 355 356 static struct pxamci_platform_data spitz_mci_platform_data = { 357 .ocr_mask = MMC_VDD_32_33|MMC_VDD_33_34, 358 .init = spitz_mci_init, 359 .get_ro = spitz_mci_get_ro, 360 .setpower = spitz_mci_setpower, 361 .exit = spitz_mci_exit, 362 }; 363 364 365 /* 366 * USB Host (OHCI) 367 */ 368 static int spitz_ohci_init(struct device *dev) 369 { 370 /* Only Port 2 is connected */ 371 pxa_gpio_mode(SPITZ_GPIO_USB_CONNECT | GPIO_IN); 372 pxa_gpio_mode(SPITZ_GPIO_USB_HOST | GPIO_OUT); 373 pxa_gpio_mode(SPITZ_GPIO_USB_DEVICE | GPIO_IN); 374 375 /* Setup USB Port 2 Output Control Register */ 376 UP2OCR = UP2OCR_HXS | UP2OCR_HXOE | UP2OCR_DPPDE | UP2OCR_DMPDE; 377 378 GPSR(SPITZ_GPIO_USB_HOST) = GPIO_bit(SPITZ_GPIO_USB_HOST); 379 380 UHCHR = (UHCHR) & 381 ~(UHCHR_SSEP1 | UHCHR_SSEP2 | UHCHR_SSEP3 | UHCHR_SSE); 382 383 UHCRHDA |= UHCRHDA_NOCP; 384 385 return 0; 386 } 387 388 static struct pxaohci_platform_data spitz_ohci_platform_data = { 389 .port_mode = PMM_NPS_MODE, 390 .init = spitz_ohci_init, 391 .power_budget = 150, 392 }; 393 394 395 /* 396 * Irda 397 */ 398 static void spitz_irda_transceiver_mode(struct device *dev, int mode) 399 { 400 if (mode & IR_OFF) 401 set_scoop_gpio(&spitzscoop2_device.dev, SPITZ_SCP2_IR_ON); 402 else 403 reset_scoop_gpio(&spitzscoop2_device.dev, SPITZ_SCP2_IR_ON); 404 } 405 406 #ifdef CONFIG_MACH_AKITA 407 static void akita_irda_transceiver_mode(struct device *dev, int mode) 408 { 409 if (mode & IR_OFF) 410 akita_set_ioexp(&akitaioexp_device.dev, AKITA_IOEXP_IR_ON); 411 else 412 akita_reset_ioexp(&akitaioexp_device.dev, AKITA_IOEXP_IR_ON); 413 } 414 #endif 415 416 static struct pxaficp_platform_data spitz_ficp_platform_data = { 417 .transceiver_cap = IR_SIRMODE | IR_OFF, 418 .transceiver_mode = spitz_irda_transceiver_mode, 419 }; 420 421 422 /* 423 * Spitz PXA Framebuffer 424 */ 425 426 static struct pxafb_mode_info spitz_pxafb_modes[] = { 427 { 428 .pixclock = 19231, 429 .xres = 480, 430 .yres = 640, 431 .bpp = 16, 432 .hsync_len = 40, 433 .left_margin = 46, 434 .right_margin = 125, 435 .vsync_len = 3, 436 .upper_margin = 1, 437 .lower_margin = 0, 438 .sync = 0, 439 },{ 440 .pixclock = 134617, 441 .xres = 240, 442 .yres = 320, 443 .bpp = 16, 444 .hsync_len = 20, 445 .left_margin = 20, 446 .right_margin = 46, 447 .vsync_len = 2, 448 .upper_margin = 1, 449 .lower_margin = 0, 450 .sync = 0, 451 }, 452 }; 453 454 static struct pxafb_mach_info spitz_pxafb_info = { 455 .modes = &spitz_pxafb_modes[0], 456 .num_modes = 2, 457 .fixed_modes = 1, 458 .lccr0 = LCCR0_Color | LCCR0_Sngl | LCCR0_Act | LCCR0_LDDALT | LCCR0_OUC | LCCR0_CMDIM | LCCR0_RDSTM, 459 .lccr3 = LCCR3_PixRsEdg | LCCR3_OutEnH, 460 .pxafb_lcd_power = spitz_lcd_power, 461 }; 462 463 464 static struct platform_device *devices[] __initdata = { 465 &spitzscoop_device, 466 &spitzssp_device, 467 &spitzkbd_device, 468 &spitzts_device, 469 &spitzbl_device, 470 &spitzled_device, 471 }; 472 473 static void spitz_poweroff(void) 474 { 475 RCSR = RCSR_HWR | RCSR_WDR | RCSR_SMR | RCSR_GPR; 476 477 pxa_gpio_mode(SPITZ_GPIO_ON_RESET | GPIO_OUT); 478 GPSR(SPITZ_GPIO_ON_RESET) = GPIO_bit(SPITZ_GPIO_ON_RESET); 479 480 mdelay(1000); 481 arm_machine_restart('h'); 482 } 483 484 static void spitz_restart(char mode) 485 { 486 /* Bootloader magic for a reboot */ 487 if((MSC0 & 0xffff0000) == 0x7ff00000) 488 MSC0 = (MSC0 & 0xffff) | 0x7ee00000; 489 490 spitz_poweroff(); 491 } 492 493 static void __init common_init(void) 494 { 495 pm_power_off = spitz_poweroff; 496 arm_pm_restart = spitz_restart; 497 498 PMCR = 0x00; 499 500 /* setup sleep mode values */ 501 PWER = 0x00000002; 502 PFER = 0x00000000; 503 PRER = 0x00000002; 504 PGSR0 = 0x0158C000; 505 PGSR1 = 0x00FF0080; 506 PGSR2 = 0x0001C004; 507 508 /* Stop 3.6MHz and drive HIGH to PCMCIA and CS */ 509 PCFR |= PCFR_OPDE; 510 511 corgi_ssp_set_machinfo(&spitz_ssp_machinfo); 512 513 pxa_gpio_mode(SPITZ_GPIO_HSYNC | GPIO_IN); 514 515 platform_add_devices(devices, ARRAY_SIZE(devices)); 516 pxa_set_mci_info(&spitz_mci_platform_data); 517 pxa_set_ohci_info(&spitz_ohci_platform_data); 518 pxa_set_ficp_info(&spitz_ficp_platform_data); 519 set_pxa_fb_parent(&spitzssp_device.dev); 520 set_pxa_fb_info(&spitz_pxafb_info); 521 } 522 523 static void __init spitz_init(void) 524 { 525 platform_scoop_config = &spitz_pcmcia_config; 526 527 spitz_bl_machinfo.set_bl_intensity = spitz_bl_set_intensity; 528 529 common_init(); 530 531 platform_device_register(&spitzscoop2_device); 532 } 533 534 #ifdef CONFIG_MACH_AKITA 535 /* 536 * Akita IO Expander 537 */ 538 struct platform_device akitaioexp_device = { 539 .name = "akita-ioexp", 540 .id = -1, 541 }; 542 543 EXPORT_SYMBOL_GPL(akitaioexp_device); 544 545 static void __init akita_init(void) 546 { 547 spitz_ficp_platform_data.transceiver_mode = akita_irda_transceiver_mode; 548 549 /* We just pretend the second element of the array doesn't exist */ 550 spitz_pcmcia_config.num_devs = 1; 551 platform_scoop_config = &spitz_pcmcia_config; 552 spitz_bl_machinfo.set_bl_intensity = akita_bl_set_intensity; 553 554 platform_device_register(&akitaioexp_device); 555 556 spitzscoop_device.dev.parent = &akitaioexp_device.dev; 557 common_init(); 558 } 559 #endif 560 561 562 static void __init fixup_spitz(struct machine_desc *desc, 563 struct tag *tags, char **cmdline, struct meminfo *mi) 564 { 565 sharpsl_save_param(); 566 mi->nr_banks = 1; 567 mi->bank[0].start = 0xa0000000; 568 mi->bank[0].node = 0; 569 mi->bank[0].size = (64*1024*1024); 570 } 571 572 #ifdef CONFIG_MACH_SPITZ 573 MACHINE_START(SPITZ, "SHARP Spitz") 574 .phys_io = 0x40000000, 575 .io_pg_offst = (io_p2v(0x40000000) >> 18) & 0xfffc, 576 .fixup = fixup_spitz, 577 .map_io = pxa_map_io, 578 .init_irq = pxa27x_init_irq, 579 .init_machine = spitz_init, 580 .timer = &pxa_timer, 581 MACHINE_END 582 #endif 583 584 #ifdef CONFIG_MACH_BORZOI 585 MACHINE_START(BORZOI, "SHARP Borzoi") 586 .phys_io = 0x40000000, 587 .io_pg_offst = (io_p2v(0x40000000) >> 18) & 0xfffc, 588 .fixup = fixup_spitz, 589 .map_io = pxa_map_io, 590 .init_irq = pxa27x_init_irq, 591 .init_machine = spitz_init, 592 .timer = &pxa_timer, 593 MACHINE_END 594 #endif 595 596 #ifdef CONFIG_MACH_AKITA 597 MACHINE_START(AKITA, "SHARP Akita") 598 .phys_io = 0x40000000, 599 .io_pg_offst = (io_p2v(0x40000000) >> 18) & 0xfffc, 600 .fixup = fixup_spitz, 601 .map_io = pxa_map_io, 602 .init_irq = pxa27x_init_irq, 603 .init_machine = akita_init, 604 .timer = &pxa_timer, 605 MACHINE_END 606 #endif 607