arch/arm/mach-pxa/spitz.c

   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