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 "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 *, struct pt_regs *), 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 static struct pxafb_mach_info spitz_pxafb_info __initdata = {
 411         .pixclock       = 19231,
 412         .xres           = 480,
 413         .yres           = 640,
 414         .bpp            = 16,
 415         .hsync_len      = 40,
 416         .left_margin    = 46,
 417         .right_margin   = 125,
 418         .vsync_len      = 3,
 419         .upper_margin   = 1,
 420         .lower_margin   = 0,
 421         .sync           = 0,
 422         .lccr0          = LCCR0_Color | LCCR0_Sngl | LCCR0_Act | LCCR0_LDDALT | LCCR0_OUC | LCCR0_CMDIM | LCCR0_RDSTM,
 423         .lccr3          = LCCR3_PixRsEdg | LCCR3_OutEnH,
 424         .pxafb_lcd_power = spitz_lcd_power,
 425 };
 426
 427
 428 static struct platform_device *devices[] __initdata = {
 429         &spitzscoop_device,
 430         &spitzssp_device,
 431         &spitzkbd_device,
 432         &spitzts_device,
 433         &spitzbl_device,
 434         &spitzled_device,
 435 };
 436
 437 static void spitz_poweroff(void)
 438 {
 439         RCSR = RCSR_HWR | RCSR_WDR | RCSR_SMR | RCSR_GPR;
 440
 441         pxa_gpio_mode(SPITZ_GPIO_ON_RESET | GPIO_OUT);
 442         GPSR(SPITZ_GPIO_ON_RESET) = GPIO_bit(SPITZ_GPIO_ON_RESET);
 443
 444         mdelay(1000);
 445         arm_machine_restart('h');
 446 }
 447
 448 static void spitz_restart(char mode)
 449 {
 450         /* Bootloader magic for a reboot */
 451         if((MSC0 & 0xffff0000) == 0x7ff00000)
 452                 MSC0 = (MSC0 & 0xffff) | 0x7ee00000;
 453
 454         spitz_poweroff();
 455 }
 456
 457 static void __init common_init(void)
 458 {
 459         pm_power_off = spitz_poweroff;
 460         arm_pm_restart = spitz_restart;
 461
 462         PMCR = 0x00;
 463
 464         /* setup sleep mode values */
 465         PWER  = 0x00000002;
 466         PFER  = 0x00000000;
 467         PRER  = 0x00000002;
 468         PGSR0 = 0x0158C000;
 469         PGSR1 = 0x00FF0080;
 470         PGSR2 = 0x0001C004;
 471
 472         /* Stop 3.6MHz and drive HIGH to PCMCIA and CS */
 473         PCFR |= PCFR_OPDE;
 474
 475         corgi_ssp_set_machinfo(&spitz_ssp_machinfo);
 476
 477         pxa_gpio_mode(SPITZ_GPIO_HSYNC | GPIO_IN);
 478
 479         platform_add_devices(devices, ARRAY_SIZE(devices));
 480         pxa_set_mci_info(&spitz_mci_platform_data);
 481         pxa_set_ohci_info(&spitz_ohci_platform_data);
 482         pxa_set_ficp_info(&spitz_ficp_platform_data);
 483         set_pxa_fb_parent(&spitzssp_device.dev);
 484         set_pxa_fb_info(&spitz_pxafb_info);
 485 }
 486
 487 static void __init spitz_init(void)
 488 {
 489         platform_scoop_config = &spitz_pcmcia_config;
 490
 491         spitz_bl_machinfo.set_bl_intensity = spitz_bl_set_intensity;
 492
 493         common_init();
 494
 495         platform_device_register(&spitzscoop2_device);
 496 }
 497
 498 #ifdef CONFIG_MACH_AKITA
 499 /*
 500  * Akita IO Expander
 501  */
 502 struct platform_device akitaioexp_device = {
 503         .name           = "akita-ioexp",
 504         .id             = -1,
 505 };
 506
 507 EXPORT_SYMBOL_GPL(akitaioexp_device);
 508
 509 static void __init akita_init(void)
 510 {
 511         spitz_ficp_platform_data.transceiver_mode = akita_irda_transceiver_mode;
 512
 513         /* We just pretend the second element of the array doesn't exist */
 514         spitz_pcmcia_config.num_devs = 1;
 515         platform_scoop_config = &spitz_pcmcia_config;
 516         spitz_bl_machinfo.set_bl_intensity = akita_bl_set_intensity;
 517
 518         platform_device_register(&akitaioexp_device);
 519
 520         spitzscoop_device.dev.parent = &akitaioexp_device.dev;
 521         common_init();
 522 }
 523 #endif
 524
 525
 526 static void __init fixup_spitz(struct machine_desc *desc,
 527                 struct tag *tags, char **cmdline, struct meminfo *mi)
 528 {
 529         sharpsl_save_param();
 530         mi->nr_banks = 1;
 531         mi->bank[0].start = 0xa0000000;
 532         mi->bank[0].node = 0;
 533         mi->bank[0].size = (64*1024*1024);
 534 }
 535
 536 #ifdef CONFIG_MACH_SPITZ
 537 MACHINE_START(SPITZ, "SHARP Spitz")
 538         .phys_io        = 0x40000000,
 539         .io_pg_offst    = (io_p2v(0x40000000) >> 18) & 0xfffc,
 540         .fixup          = fixup_spitz,
 541         .map_io         = pxa_map_io,
 542         .init_irq       = pxa_init_irq,
 543         .init_machine   = spitz_init,
 544         .timer          = &pxa_timer,
 545 MACHINE_END
 546 #endif
 547
 548 #ifdef CONFIG_MACH_BORZOI
 549 MACHINE_START(BORZOI, "SHARP Borzoi")
 550         .phys_io        = 0x40000000,
 551         .io_pg_offst    = (io_p2v(0x40000000) >> 18) & 0xfffc,
 552         .fixup          = fixup_spitz,
 553         .map_io         = pxa_map_io,
 554         .init_irq       = pxa_init_irq,
 555         .init_machine   = spitz_init,
 556         .timer          = &pxa_timer,
 557 MACHINE_END
 558 #endif
 559
 560 #ifdef CONFIG_MACH_AKITA
 561 MACHINE_START(AKITA, "SHARP Akita")
 562         .phys_io        = 0x40000000,
 563         .io_pg_offst    = (io_p2v(0x40000000) >> 18) & 0xfffc,
 564         .fixup          = fixup_spitz,
 565         .map_io         = pxa_map_io,
 566         .init_irq       = pxa_init_irq,
 567         .init_machine   = akita_init,
 568         .timer          = &pxa_timer,
 569 MACHINE_END
 570 #endif