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