arch/arm/mach-pxa/corgi.c

   1 /*
   2  * Support for Sharp SL-C7xx PDAs
   3  * Models: SL-C700 (Corgi), SL-C750 (Shepherd), SL-C760 (Husky)
   4  *
   5  * Copyright (c) 2004-2005 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/major.h>
  19 #include <linux/fs.h>
  20 #include <linux/interrupt.h>
  21 #include <linux/mmc/host.h>
  22 #include <linux/pm.h>
  23 #include <linux/backlight.h>
  24 #include <video/w100fb.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/pxa2xx-regs.h>
  40 #include <asm/arch/pxa2xx-gpio.h>
  41 #include <asm/arch/irda.h>
  42 #include <asm/arch/mmc.h>
  43 #include <asm/arch/udc.h>
  44 #include <asm/arch/corgi.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 /*
  56  * Corgi SCOOP Device
  57  */
  58 static struct resource corgi_scoop_resources[] = {
  59         [0] = {
  60                 .start          = 0x10800000,
  61                 .end            = 0x10800fff,
  62                 .flags          = IORESOURCE_MEM,
  63         },
  64 };
  65
  66 static struct scoop_config corgi_scoop_setup = {
  67         .io_dir         = CORGI_SCOOP_IO_DIR,
  68         .io_out         = CORGI_SCOOP_IO_OUT,
  69 };
  70
  71 struct platform_device corgiscoop_device = {
  72         .name           = "sharp-scoop",
  73         .id             = -1,
  74         .dev            = {
  75                 .platform_data  = &corgi_scoop_setup,
  76         },
  77         .num_resources  = ARRAY_SIZE(corgi_scoop_resources),
  78         .resource       = corgi_scoop_resources,
  79 };
  80
  81 static void corgi_pcmcia_init(void)
  82 {
  83         /* Setup default state of GPIO outputs
  84            before we enable them as outputs. */
  85         GPSR(GPIO48_nPOE) = GPIO_bit(GPIO48_nPOE) |
  86                 GPIO_bit(GPIO49_nPWE) | GPIO_bit(GPIO50_nPIOR) |
  87                 GPIO_bit(GPIO51_nPIOW) | GPIO_bit(GPIO52_nPCE_1) |
  88                 GPIO_bit(GPIO53_nPCE_2);
  89
  90         pxa_gpio_mode(GPIO48_nPOE_MD);
  91         pxa_gpio_mode(GPIO49_nPWE_MD);
  92         pxa_gpio_mode(GPIO50_nPIOR_MD);
  93         pxa_gpio_mode(GPIO51_nPIOW_MD);
  94         pxa_gpio_mode(GPIO55_nPREG_MD);
  95         pxa_gpio_mode(GPIO56_nPWAIT_MD);
  96         pxa_gpio_mode(GPIO57_nIOIS16_MD);
  97         pxa_gpio_mode(GPIO52_nPCE_1_MD);
  98         pxa_gpio_mode(GPIO53_nPCE_2_MD);
  99         pxa_gpio_mode(GPIO54_pSKTSEL_MD);
 100 }
 101
 102 static struct scoop_pcmcia_dev corgi_pcmcia_scoop[] = {
 103 {
 104         .dev        = &corgiscoop_device.dev,
 105         .irq        = CORGI_IRQ_GPIO_CF_IRQ,
 106         .cd_irq     = CORGI_IRQ_GPIO_CF_CD,
 107         .cd_irq_str = "PCMCIA0 CD",
 108 },
 109 };
 110
 111 static struct scoop_pcmcia_config corgi_pcmcia_config = {
 112         .devs         = &corgi_pcmcia_scoop[0],
 113         .num_devs     = 1,
 114         .pcmcia_init  = corgi_pcmcia_init,
 115 };
 116
 117 EXPORT_SYMBOL(corgiscoop_device);
 118
 119
 120 /*
 121  * Corgi SSP Device
 122  *
 123  * Set the parent as the scoop device because a lot of SSP devices
 124  * also use scoop functions and this makes the power up/down order
 125  * work correctly.
 126  */
 127 struct platform_device corgissp_device = {
 128         .name           = "corgi-ssp",
 129         .dev            = {
 130                 .parent = &corgiscoop_device.dev,
 131         },
 132         .id             = -1,
 133 };
 134
 135 struct corgissp_machinfo corgi_ssp_machinfo = {
 136         .port           = 1,
 137         .cs_lcdcon      = CORGI_GPIO_LCDCON_CS,
 138         .cs_ads7846     = CORGI_GPIO_ADS7846_CS,
 139         .cs_max1111     = CORGI_GPIO_MAX1111_CS,
 140         .clk_lcdcon     = 76,
 141         .clk_ads7846    = 2,
 142         .clk_max1111    = 8,
 143 };
 144
 145
 146 /*
 147  * LCD/Framebuffer
 148  */
 149 static void w100_lcdtg_suspend(struct w100fb_par *par)
 150 {
 151         corgi_lcdtg_suspend();
 152 }
 153
 154 static void w100_lcdtg_init(struct w100fb_par *par)
 155 {
 156         corgi_lcdtg_hw_init(par->xres);
 157 }
 158
 159
 160 static struct w100_tg_info corgi_lcdtg_info = {
 161         .change  = w100_lcdtg_init,
 162         .suspend = w100_lcdtg_suspend,
 163         .resume  = w100_lcdtg_init,
 164 };
 165
 166 static struct w100_mem_info corgi_fb_mem = {
 167         .ext_cntl          = 0x00040003,
 168         .sdram_mode_reg    = 0x00650021,
 169         .ext_timing_cntl   = 0x10002a4a,
 170         .io_cntl           = 0x7ff87012,
 171         .size              = 0x1fffff,
 172 };
 173
 174 static struct w100_gen_regs corgi_fb_regs = {
 175         .lcd_format    = 0x00000003,
 176         .lcdd_cntl1    = 0x01CC0000,
 177         .lcdd_cntl2    = 0x0003FFFF,
 178         .genlcd_cntl1  = 0x00FFFF0D,
 179         .genlcd_cntl2  = 0x003F3003,
 180         .genlcd_cntl3  = 0x000102aa,
 181 };
 182
 183 static struct w100_gpio_regs corgi_fb_gpio = {
 184         .init_data1   = 0x000000bf,
 185         .init_data2   = 0x00000000,
 186         .gpio_dir1    = 0x00000000,
 187         .gpio_oe1     = 0x03c0feff,
 188         .gpio_dir2    = 0x00000000,
 189         .gpio_oe2     = 0x00000000,
 190 };
 191
 192 static struct w100_mode corgi_fb_modes[] = {
 193 {
 194         .xres            = 480,
 195         .yres            = 640,
 196         .left_margin     = 0x56,
 197         .right_margin    = 0x55,
 198         .upper_margin    = 0x03,
 199         .lower_margin    = 0x00,
 200         .crtc_ss         = 0x82360056,
 201         .crtc_ls         = 0xA0280000,
 202         .crtc_gs         = 0x80280028,
 203         .crtc_vpos_gs    = 0x02830002,
 204         .crtc_rev        = 0x00400008,
 205         .crtc_dclk       = 0xA0000000,
 206         .crtc_gclk       = 0x8015010F,
 207         .crtc_goe        = 0x80100110,
 208         .crtc_ps1_active = 0x41060010,
 209         .pll_freq        = 75,
 210         .fast_pll_freq   = 100,
 211         .sysclk_src      = CLK_SRC_PLL,
 212         .sysclk_divider  = 0,
 213         .pixclk_src      = CLK_SRC_PLL,
 214         .pixclk_divider  = 2,
 215         .pixclk_divider_rotated = 6,
 216 },{
 217         .xres            = 240,
 218         .yres            = 320,
 219         .left_margin     = 0x27,
 220         .right_margin    = 0x2e,
 221         .upper_margin    = 0x01,
 222         .lower_margin    = 0x00,
 223         .crtc_ss         = 0x81170027,
 224         .crtc_ls         = 0xA0140000,
 225         .crtc_gs         = 0xC0140014,
 226         .crtc_vpos_gs    = 0x00010141,
 227         .crtc_rev        = 0x00400008,
 228         .crtc_dclk       = 0xA0000000,
 229         .crtc_gclk       = 0x8015010F,
 230         .crtc_goe        = 0x80100110,
 231         .crtc_ps1_active = 0x41060010,
 232         .pll_freq        = 0,
 233         .fast_pll_freq   = 0,
 234         .sysclk_src      = CLK_SRC_XTAL,
 235         .sysclk_divider  = 0,
 236         .pixclk_src      = CLK_SRC_XTAL,
 237         .pixclk_divider  = 1,
 238         .pixclk_divider_rotated = 1,
 239 },
 240
 241 };
 242
 243 static struct w100fb_mach_info corgi_fb_info = {
 244         .tg         = &corgi_lcdtg_info,
 245         .init_mode  = INIT_MODE_ROTATED,
 246         .mem        = &corgi_fb_mem,
 247         .regs       = &corgi_fb_regs,
 248         .modelist   = &corgi_fb_modes[0],
 249         .num_modes  = 2,
 250         .gpio       = &corgi_fb_gpio,
 251         .xtal_freq  = 12500000,
 252         .xtal_dbl   = 0,
 253 };
 254
 255 static struct resource corgi_fb_resources[] = {
 256         [0] = {
 257                 .start   = 0x08000000,
 258                 .end     = 0x08ffffff,
 259                 .flags   = IORESOURCE_MEM,
 260         },
 261 };
 262
 263 static struct platform_device corgifb_device = {
 264         .name           = "w100fb",
 265         .id             = -1,
 266         .num_resources  = ARRAY_SIZE(corgi_fb_resources),
 267         .resource       = corgi_fb_resources,
 268         .dev            = {
 269                 .platform_data = &corgi_fb_info,
 270                 .parent = &corgissp_device.dev,
 271         },
 272
 273 };
 274
 275
 276 /*
 277  * Corgi Backlight Device
 278  */
 279 static void corgi_bl_kick_battery(void)
 280 {
 281         void (*kick_batt)(void);
 282
 283         kick_batt = symbol_get(sharpsl_battery_kick);
 284         if (kick_batt) {
 285                 kick_batt();
 286                 symbol_put(sharpsl_battery_kick);
 287         }
 288 }
 289
 290 static void corgi_bl_set_intensity(int intensity)
 291 {
 292         if (intensity > 0x10)
 293                 intensity += 0x10;
 294
 295         /* Bits 0-4 are accessed via the SSP interface */
 296         corgi_ssp_blduty_set(intensity & 0x1f);
 297
 298         /* Bit 5 is via SCOOP */
 299         if (intensity & 0x0020)
 300                 set_scoop_gpio(&corgiscoop_device.dev, CORGI_SCP_BACKLIGHT_CONT);
 301         else
 302                 reset_scoop_gpio(&corgiscoop_device.dev, CORGI_SCP_BACKLIGHT_CONT);
 303 }
 304
 305 static struct generic_bl_info corgi_bl_machinfo = {
 306         .name = "corgi-bl",
 307         .max_intensity = 0x2f,
 308         .default_intensity = 0x1f,
 309         .limit_mask = 0x0b,
 310         .set_bl_intensity = corgi_bl_set_intensity,
 311         .kick_battery = corgi_bl_kick_battery,
 312 };
 313
 314 static struct platform_device corgibl_device = {
 315         .name           = "generic-bl",
 316         .dev            = {
 317                 .parent = &corgifb_device.dev,
 318                 .platform_data  = &corgi_bl_machinfo,
 319         },
 320         .id             = -1,
 321 };
 322
 323
 324 /*
 325  * Corgi Keyboard Device
 326  */
 327 static struct platform_device corgikbd_device = {
 328         .name           = "corgi-keyboard",
 329         .id             = -1,
 330 };
 331
 332
 333 /*
 334  * Corgi LEDs
 335  */
 336 static struct platform_device corgiled_device = {
 337         .name           = "corgi-led",
 338         .id             = -1,
 339 };
 340
 341
 342 /*
 343  * Corgi Touch Screen Device
 344  */
 345 static unsigned long (*get_hsync_invperiod)(struct device *dev);
 346
 347 static void inline sharpsl_wait_sync(int gpio)
 348 {
 349         while((GPLR(gpio) & GPIO_bit(gpio)) == 0);
 350         while((GPLR(gpio) & GPIO_bit(gpio)) != 0);
 351 }
 352
 353 static unsigned long corgi_get_hsync_invperiod(void)
 354 {
 355         if (!get_hsync_invperiod)
 356                 get_hsync_invperiod = symbol_get(w100fb_get_hsynclen);
 357         if (!get_hsync_invperiod)
 358                 return 0;
 359
 360         return get_hsync_invperiod(&corgifb_device.dev);
 361 }
 362
 363 static void corgi_put_hsync(void)
 364 {
 365         if (get_hsync_invperiod)
 366                 symbol_put(w100fb_get_hsynclen);
 367         get_hsync_invperiod = NULL;
 368 }
 369
 370 static void corgi_wait_hsync(void)
 371 {
 372         sharpsl_wait_sync(CORGI_GPIO_HSYNC);
 373 }
 374
 375 static struct resource corgits_resources[] = {
 376         [0] = {
 377                 .start          = CORGI_IRQ_GPIO_TP_INT,
 378                 .end            = CORGI_IRQ_GPIO_TP_INT,
 379                 .flags          = IORESOURCE_IRQ,
 380         },
 381 };
 382
 383 static struct corgits_machinfo  corgi_ts_machinfo = {
 384         .get_hsync_invperiod = corgi_get_hsync_invperiod,
 385         .put_hsync           = corgi_put_hsync,
 386         .wait_hsync          = corgi_wait_hsync,
 387 };
 388
 389 static struct platform_device corgits_device = {
 390         .name           = "corgi-ts",
 391         .dev            = {
 392                 .parent = &corgissp_device.dev,
 393                 .platform_data  = &corgi_ts_machinfo,
 394         },
 395         .id             = -1,
 396         .num_resources  = ARRAY_SIZE(corgits_resources),
 397         .resource       = corgits_resources,
 398 };
 399
 400
 401 /*
 402  * MMC/SD Device
 403  *
 404  * The card detect interrupt isn't debounced so we delay it by 250ms
 405  * to give the card a chance to fully insert/eject.
 406  */
 407 static struct pxamci_platform_data corgi_mci_platform_data;
 408
 409 static int corgi_mci_init(struct device *dev, irq_handler_t corgi_detect_int, void *data)
 410 {
 411         int err;
 412
 413         /* setup GPIO for PXA25x MMC controller */
 414         pxa_gpio_mode(GPIO6_MMCCLK_MD);
 415         pxa_gpio_mode(GPIO8_MMCCS0_MD);
 416         pxa_gpio_mode(CORGI_GPIO_nSD_DETECT | GPIO_IN);
 417         pxa_gpio_mode(CORGI_GPIO_SD_PWR | GPIO_OUT);
 418
 419         corgi_mci_platform_data.detect_delay = msecs_to_jiffies(250);
 420
 421         err = request_irq(CORGI_IRQ_GPIO_nSD_DETECT, corgi_detect_int,
 422                           IRQF_DISABLED | IRQF_TRIGGER_RISING | IRQF_TRIGGER_FALLING,
 423                           "MMC card detect", data);
 424         if (err)
 425                 printk(KERN_ERR "corgi_mci_init: MMC/SD: can't request MMC card detect IRQ\n");
 426
 427         return err;
 428 }
 429
 430 static void corgi_mci_setpower(struct device *dev, unsigned int vdd)
 431 {
 432         struct pxamci_platform_data* p_d = dev->platform_data;
 433
 434         if (( 1 << vdd) & p_d->ocr_mask)
 435                 GPSR1 = GPIO_bit(CORGI_GPIO_SD_PWR);
 436         else
 437                 GPCR1 = GPIO_bit(CORGI_GPIO_SD_PWR);
 438 }
 439
 440 static int corgi_mci_get_ro(struct device *dev)
 441 {
 442         return GPLR(CORGI_GPIO_nSD_WP) & GPIO_bit(CORGI_GPIO_nSD_WP);
 443 }
 444
 445 static void corgi_mci_exit(struct device *dev, void *data)
 446 {
 447         free_irq(CORGI_IRQ_GPIO_nSD_DETECT, data);
 448 }
 449
 450 static struct pxamci_platform_data corgi_mci_platform_data = {
 451         .ocr_mask       = MMC_VDD_32_33|MMC_VDD_33_34,
 452         .init           = corgi_mci_init,
 453         .get_ro         = corgi_mci_get_ro,
 454         .setpower       = corgi_mci_setpower,
 455         .exit           = corgi_mci_exit,
 456 };
 457
 458
 459 /*
 460  * Irda
 461  */
 462 static void corgi_irda_transceiver_mode(struct device *dev, int mode)
 463 {
 464         if (mode & IR_OFF)
 465                 GPSR(CORGI_GPIO_IR_ON) = GPIO_bit(CORGI_GPIO_IR_ON);
 466         else
 467                 GPCR(CORGI_GPIO_IR_ON) = GPIO_bit(CORGI_GPIO_IR_ON);
 468 }
 469
 470 static struct pxaficp_platform_data corgi_ficp_platform_data = {
 471         .transceiver_cap  = IR_SIRMODE | IR_OFF,
 472         .transceiver_mode = corgi_irda_transceiver_mode,
 473 };
 474
 475
 476 /*
 477  * USB Device Controller
 478  */
 479 static struct pxa2xx_udc_mach_info udc_info __initdata = {
 480         /* no connect GPIO; corgi can't tell connection status */
 481         .gpio_pullup            = CORGI_GPIO_USB_PULLUP,
 482 };
 483
 484
 485 static struct platform_device *devices[] __initdata = {
 486         &corgiscoop_device,
 487         &corgissp_device,
 488         &corgifb_device,
 489         &corgikbd_device,
 490         &corgibl_device,
 491         &corgits_device,
 492         &corgiled_device,
 493 };
 494
 495 static void corgi_poweroff(void)
 496 {
 497         if (!machine_is_corgi())
 498                 /* Green LED off tells the bootloader to halt */
 499                 reset_scoop_gpio(&corgiscoop_device.dev, CORGI_SCP_LED_GREEN);
 500         arm_machine_restart('h');
 501 }
 502
 503 static void corgi_restart(char mode)
 504 {
 505         if (!machine_is_corgi())
 506                 /* Green LED on tells the bootloader to reboot */
 507                 set_scoop_gpio(&corgiscoop_device.dev, CORGI_SCP_LED_GREEN);
 508         arm_machine_restart('h');
 509 }
 510
 511 static void __init corgi_init(void)
 512 {
 513         pm_power_off = corgi_poweroff;
 514         arm_pm_restart = corgi_restart;
 515
 516         /* setup sleep mode values */
 517         PWER  = 0x00000002;
 518         PFER  = 0x00000000;
 519         PRER  = 0x00000002;
 520         PGSR0 = 0x0158C000;
 521         PGSR1 = 0x00FF0080;
 522         PGSR2 = 0x0001C004;
 523         /* Stop 3.6MHz and drive HIGH to PCMCIA and CS */
 524         PCFR |= PCFR_OPDE;
 525
 526         corgi_ssp_set_machinfo(&corgi_ssp_machinfo);
 527
 528         pxa_gpio_mode(CORGI_GPIO_IR_ON | GPIO_OUT);
 529         pxa_gpio_mode(CORGI_GPIO_HSYNC | GPIO_IN);
 530
 531         pxa_set_udc_info(&udc_info);
 532         pxa_set_mci_info(&corgi_mci_platform_data);
 533         pxa_set_ficp_info(&corgi_ficp_platform_data);
 534
 535         platform_scoop_config = &corgi_pcmcia_config;
 536
 537         platform_add_devices(devices, ARRAY_SIZE(devices));
 538 }
 539
 540 static void __init fixup_corgi(struct machine_desc *desc,
 541                 struct tag *tags, char **cmdline, struct meminfo *mi)
 542 {
 543         sharpsl_save_param();
 544         mi->nr_banks=1;
 545         mi->bank[0].start = 0xa0000000;
 546         mi->bank[0].node = 0;
 547         if (machine_is_corgi())
 548                 mi->bank[0].size = (32*1024*1024);
 549         else
 550                 mi->bank[0].size = (64*1024*1024);
 551 }
 552
 553 #ifdef CONFIG_MACH_CORGI
 554 MACHINE_START(CORGI, "SHARP Corgi")
 555         .phys_io        = 0x40000000,
 556         .io_pg_offst    = (io_p2v(0x40000000) >> 18) & 0xfffc,
 557         .fixup          = fixup_corgi,
 558         .map_io         = pxa_map_io,
 559         .init_irq       = pxa25x_init_irq,
 560         .init_machine   = corgi_init,
 561         .timer          = &pxa_timer,
 562 MACHINE_END
 563 #endif
 564
 565 #ifdef CONFIG_MACH_SHEPHERD
 566 MACHINE_START(SHEPHERD, "SHARP Shepherd")
 567         .phys_io        = 0x40000000,
 568         .io_pg_offst    = (io_p2v(0x40000000) >> 18) & 0xfffc,
 569         .fixup          = fixup_corgi,
 570         .map_io         = pxa_map_io,
 571         .init_irq       = pxa25x_init_irq,
 572         .init_machine   = corgi_init,
 573         .timer          = &pxa_timer,
 574 MACHINE_END
 575 #endif
 576
 577 #ifdef CONFIG_MACH_HUSKY
 578 MACHINE_START(HUSKY, "SHARP Husky")
 579         .phys_io        = 0x40000000,
 580         .io_pg_offst    = (io_p2v(0x40000000) >> 18) & 0xfffc,
 581         .fixup          = fixup_corgi,
 582         .map_io         = pxa_map_io,
 583         .init_irq       = pxa25x_init_irq,
 584         .init_machine   = corgi_init,
 585         .timer          = &pxa_timer,
 586 MACHINE_END
 587 #endif
 588