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