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