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 .max_intensity = 0x2f, 224 }; 225 226 static struct platform_device spitzbl_device = { 227 .name = "corgi-bl", 228 .dev = { 229 .platform_data = &spitz_bl_machinfo, 230 }, 231 .id = -1, 232 }; 233 234 235 /* 236 * Spitz Keyboard Device 237 */ 238 static struct platform_device spitzkbd_device = { 239 .name = "spitz-keyboard", 240 .id = -1, 241 }; 242 243 244 /* 245 * Spitz Touch Screen Device 246 */ 247 static struct resource spitzts_resources[] = { 248 [0] = { 249 .start = SPITZ_IRQ_GPIO_TP_INT, 250 .end = SPITZ_IRQ_GPIO_TP_INT, 251 .flags = IORESOURCE_IRQ, 252 }, 253 }; 254 255 static struct corgits_machinfo spitz_ts_machinfo = { 256 .get_hsync_len = spitz_get_hsync_len, 257 .put_hsync = spitz_put_hsync, 258 .wait_hsync = spitz_wait_hsync, 259 }; 260 261 static struct platform_device spitzts_device = { 262 .name = "corgi-ts", 263 .dev = { 264 .parent = &spitzssp_device.dev, 265 .platform_data = &spitz_ts_machinfo, 266 }, 267 .id = -1, 268 .num_resources = ARRAY_SIZE(spitzts_resources), 269 .resource = spitzts_resources, 270 }; 271 272 273 /* 274 * MMC/SD Device 275 * 276 * The card detect interrupt isn't debounced so we delay it by 250ms 277 * to give the card a chance to fully insert/eject. 278 */ 279 280 static struct pxamci_platform_data spitz_mci_platform_data; 281 282 static int spitz_mci_init(struct device *dev, irqreturn_t (*spitz_detect_int)(int, void *, struct pt_regs *), void *data) 283 { 284 int err; 285 286 /* setup GPIO for PXA27x MMC controller */ 287 pxa_gpio_mode(GPIO32_MMCCLK_MD); 288 pxa_gpio_mode(GPIO112_MMCCMD_MD); 289 pxa_gpio_mode(GPIO92_MMCDAT0_MD); 290 pxa_gpio_mode(GPIO109_MMCDAT1_MD); 291 pxa_gpio_mode(GPIO110_MMCDAT2_MD); 292 pxa_gpio_mode(GPIO111_MMCDAT3_MD); 293 pxa_gpio_mode(SPITZ_GPIO_nSD_DETECT | GPIO_IN); 294 pxa_gpio_mode(SPITZ_GPIO_nSD_WP | GPIO_IN); 295 296 spitz_mci_platform_data.detect_delay = msecs_to_jiffies(250); 297 298 err = request_irq(SPITZ_IRQ_GPIO_nSD_DETECT, spitz_detect_int, 299 SA_INTERRUPT | SA_TRIGGER_RISING | SA_TRIGGER_FALLING, 300 "MMC card detect", data); 301 if (err) { 302 printk(KERN_ERR "spitz_mci_init: MMC/SD: can't request MMC card detect IRQ\n"); 303 return -1; 304 } 305 306 return 0; 307 } 308 309 static void spitz_mci_setpower(struct device *dev, unsigned int vdd) 310 { 311 struct pxamci_platform_data* p_d = dev->platform_data; 312 313 if (( 1 << vdd) & p_d->ocr_mask) 314 spitz_card_pwr_ctrl(SPITZ_PWR_SD, 0x0004); 315 else 316 spitz_card_pwr_ctrl(SPITZ_PWR_SD, 0x0000); 317 } 318 319 static int spitz_mci_get_ro(struct device *dev) 320 { 321 return GPLR(SPITZ_GPIO_nSD_WP) & GPIO_bit(SPITZ_GPIO_nSD_WP); 322 } 323 324 static void spitz_mci_exit(struct device *dev, void *data) 325 { 326 free_irq(SPITZ_IRQ_GPIO_nSD_DETECT, data); 327 } 328 329 static struct pxamci_platform_data spitz_mci_platform_data = { 330 .ocr_mask = MMC_VDD_32_33|MMC_VDD_33_34, 331 .init = spitz_mci_init, 332 .get_ro = spitz_mci_get_ro, 333 .setpower = spitz_mci_setpower, 334 .exit = spitz_mci_exit, 335 }; 336 337 338 /* 339 * USB Host (OHCI) 340 */ 341 static int spitz_ohci_init(struct device *dev) 342 { 343 /* Only Port 2 is connected */ 344 pxa_gpio_mode(SPITZ_GPIO_USB_CONNECT | GPIO_IN); 345 pxa_gpio_mode(SPITZ_GPIO_USB_HOST | GPIO_OUT); 346 pxa_gpio_mode(SPITZ_GPIO_USB_DEVICE | GPIO_IN); 347 348 /* Setup USB Port 2 Output Control Register */ 349 UP2OCR = UP2OCR_HXS | UP2OCR_HXOE | UP2OCR_DPPDE | UP2OCR_DMPDE; 350 351 GPSR(SPITZ_GPIO_USB_HOST) = GPIO_bit(SPITZ_GPIO_USB_HOST); 352 353 UHCHR = (UHCHR) & 354 ~(UHCHR_SSEP1 | UHCHR_SSEP2 | UHCHR_SSEP3 | UHCHR_SSE); 355 356 UHCRHDA |= UHCRHDA_NOCP; 357 358 return 0; 359 } 360 361 static struct pxaohci_platform_data spitz_ohci_platform_data = { 362 .port_mode = PMM_NPS_MODE, 363 .init = spitz_ohci_init, 364 }; 365 366 367 /* 368 * Irda 369 */ 370 static void spitz_irda_transceiver_mode(struct device *dev, int mode) 371 { 372 if (mode & IR_OFF) 373 set_scoop_gpio(&spitzscoop2_device.dev, SPITZ_SCP2_IR_ON); 374 else 375 reset_scoop_gpio(&spitzscoop2_device.dev, SPITZ_SCP2_IR_ON); 376 } 377 378 #ifdef CONFIG_MACH_AKITA 379 static void akita_irda_transceiver_mode(struct device *dev, int mode) 380 { 381 if (mode & IR_OFF) 382 akita_set_ioexp(&akitaioexp_device.dev, AKITA_IOEXP_IR_ON); 383 else 384 akita_reset_ioexp(&akitaioexp_device.dev, AKITA_IOEXP_IR_ON); 385 } 386 #endif 387 388 static struct pxaficp_platform_data spitz_ficp_platform_data = { 389 .transceiver_cap = IR_SIRMODE | IR_OFF, 390 .transceiver_mode = spitz_irda_transceiver_mode, 391 }; 392 393 394 /* 395 * Spitz PXA Framebuffer 396 */ 397 static struct pxafb_mach_info spitz_pxafb_info __initdata = { 398 .pixclock = 19231, 399 .xres = 480, 400 .yres = 640, 401 .bpp = 16, 402 .hsync_len = 40, 403 .left_margin = 46, 404 .right_margin = 125, 405 .vsync_len = 3, 406 .upper_margin = 1, 407 .lower_margin = 0, 408 .sync = 0, 409 .lccr0 = LCCR0_Color | LCCR0_Sngl | LCCR0_Act | LCCR0_LDDALT | LCCR0_OUC | LCCR0_CMDIM | LCCR0_RDSTM, 410 .lccr3 = LCCR3_PixRsEdg | LCCR3_OutEnH, 411 .pxafb_lcd_power = spitz_lcd_power, 412 }; 413 414 415 static struct platform_device *devices[] __initdata = { 416 &spitzscoop_device, 417 &spitzssp_device, 418 &spitzkbd_device, 419 &spitzts_device, 420 &spitzbl_device, 421 }; 422 423 static void __init common_init(void) 424 { 425 PMCR = 0x00; 426 427 /* setup sleep mode values */ 428 PWER = 0x00000002; 429 PFER = 0x00000000; 430 PRER = 0x00000002; 431 PGSR0 = 0x0158C000; 432 PGSR1 = 0x00FF0080; 433 PGSR2 = 0x0001C004; 434 435 /* Stop 3.6MHz and drive HIGH to PCMCIA and CS */ 436 PCFR |= PCFR_OPDE; 437 438 corgi_ssp_set_machinfo(&spitz_ssp_machinfo); 439 440 pxa_gpio_mode(SPITZ_GPIO_HSYNC | GPIO_IN); 441 442 platform_add_devices(devices, ARRAY_SIZE(devices)); 443 pxa_set_mci_info(&spitz_mci_platform_data); 444 pxa_set_ohci_info(&spitz_ohci_platform_data); 445 pxa_set_ficp_info(&spitz_ficp_platform_data); 446 set_pxa_fb_parent(&spitzssp_device.dev); 447 set_pxa_fb_info(&spitz_pxafb_info); 448 } 449 450 static void __init spitz_init(void) 451 { 452 platform_scoop_config = &spitz_pcmcia_config; 453 454 spitz_bl_machinfo.set_bl_intensity = spitz_bl_set_intensity; 455 456 common_init(); 457 458 platform_device_register(&spitzscoop2_device); 459 } 460 461 #ifdef CONFIG_MACH_AKITA 462 /* 463 * Akita IO Expander 464 */ 465 struct platform_device akitaioexp_device = { 466 .name = "akita-ioexp", 467 .id = -1, 468 }; 469 470 EXPORT_SYMBOL_GPL(akitaioexp_device); 471 472 static void __init akita_init(void) 473 { 474 spitz_ficp_platform_data.transceiver_mode = akita_irda_transceiver_mode; 475 476 /* We just pretend the second element of the array doesn't exist */ 477 spitz_pcmcia_config.num_devs = 1; 478 platform_scoop_config = &spitz_pcmcia_config; 479 spitz_bl_machinfo.set_bl_intensity = akita_bl_set_intensity; 480 481 platform_device_register(&akitaioexp_device); 482 483 spitzscoop_device.dev.parent = &akitaioexp_device.dev; 484 common_init(); 485 } 486 #endif 487 488 489 static void __init fixup_spitz(struct machine_desc *desc, 490 struct tag *tags, char **cmdline, struct meminfo *mi) 491 { 492 sharpsl_save_param(); 493 mi->nr_banks = 1; 494 mi->bank[0].start = 0xa0000000; 495 mi->bank[0].node = 0; 496 mi->bank[0].size = (64*1024*1024); 497 } 498 499 #ifdef CONFIG_MACH_SPITZ 500 MACHINE_START(SPITZ, "SHARP Spitz") 501 .phys_io = 0x40000000, 502 .io_pg_offst = (io_p2v(0x40000000) >> 18) & 0xfffc, 503 .fixup = fixup_spitz, 504 .map_io = pxa_map_io, 505 .init_irq = pxa_init_irq, 506 .init_machine = spitz_init, 507 .timer = &pxa_timer, 508 MACHINE_END 509 #endif 510 511 #ifdef CONFIG_MACH_BORZOI 512 MACHINE_START(BORZOI, "SHARP Borzoi") 513 .phys_io = 0x40000000, 514 .io_pg_offst = (io_p2v(0x40000000) >> 18) & 0xfffc, 515 .fixup = fixup_spitz, 516 .map_io = pxa_map_io, 517 .init_irq = pxa_init_irq, 518 .init_machine = spitz_init, 519 .timer = &pxa_timer, 520 MACHINE_END 521 #endif 522 523 #ifdef CONFIG_MACH_AKITA 524 MACHINE_START(AKITA, "SHARP Akita") 525 .phys_io = 0x40000000, 526 .io_pg_offst = (io_p2v(0x40000000) >> 18) & 0xfffc, 527 .fixup = fixup_spitz, 528 .map_io = pxa_map_io, 529 .init_irq = pxa_init_irq, 530 .init_machine = akita_init, 531 .timer = &pxa_timer, 532 MACHINE_END 533 #endif 534