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/irda.h>
  40 #include <asm/arch/mmc.h>
  41 #include <asm/arch/udc.h>
  42 #include <asm/arch/corgi.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 "devices.h"
  50 #include "sharpsl.h"
  51
  52
  53 /*
  54  * Corgi SCOOP Device
  55  */
  56 static struct resource corgi_scoop_resources[] = {
  57         [0] = {
  58                 .start          = 0x10800000,
  59                 .end            = 0x10800fff,
  60                 .flags          = IORESOURCE_MEM,
  61         },
  62 };
  63
  64 static struct scoop_config corgi_scoop_setup = {
  65         .io_dir         = CORGI_SCOOP_IO_DIR,
  66         .io_out         = CORGI_SCOOP_IO_OUT,
  67 };
  68
  69 struct platform_device corgiscoop_device = {
  70         .name           = "sharp-scoop",
  71         .id             = -1,
  72         .dev            = {
  73                 .platform_data  = &corgi_scoop_setup,
  74         },
  75         .num_resources  = ARRAY_SIZE(corgi_scoop_resources),
  76         .resource       = corgi_scoop_resources,
  77 };
  78
  79 static void corgi_pcmcia_init(void)
  80 {
  81         /* Setup default state of GPIO outputs
  82            before we enable them as outputs. */
  83         GPSR(GPIO48_nPOE) = GPIO_bit(GPIO48_nPOE) |
  84                 GPIO_bit(GPIO49_nPWE) | GPIO_bit(GPIO50_nPIOR) |
  85                 GPIO_bit(GPIO51_nPIOW) | GPIO_bit(GPIO52_nPCE_1) |
  86                 GPIO_bit(GPIO53_nPCE_2);
  87
  88         pxa_gpio_mode(GPIO48_nPOE_MD);
  89         pxa_gpio_mode(GPIO49_nPWE_MD);
  90         pxa_gpio_mode(GPIO50_nPIOR_MD);
  91         pxa_gpio_mode(GPIO51_nPIOW_MD);
  92         pxa_gpio_mode(GPIO55_nPREG_MD);
  93         pxa_gpio_mode(GPIO56_nPWAIT_MD);
  94         pxa_gpio_mode(GPIO57_nIOIS16_MD);
  95         pxa_gpio_mode(GPIO52_nPCE_1_MD);
  96         pxa_gpio_mode(GPIO53_nPCE_2_MD);
  97         pxa_gpio_mode(GPIO54_pSKTSEL_MD);
  98 }
  99
 100 static struct scoop_pcmcia_dev corgi_pcmcia_scoop[] = {
 101 {
 102         .dev        = &corgiscoop_device.dev,
 103         .irq        = CORGI_IRQ_GPIO_CF_IRQ,
 104         .cd_irq     = CORGI_IRQ_GPIO_CF_CD,
 105         .cd_irq_str = "PCMCIA0 CD",
 106 },
 107 };
 108
 109 static struct scoop_pcmcia_config corgi_pcmcia_config = {
 110         .devs         = &corgi_pcmcia_scoop[0],
 111         .num_devs     = 1,
 112         .pcmcia_init  = corgi_pcmcia_init,
 113 };
 114
 115 EXPORT_SYMBOL(corgiscoop_device);
 116
 117
 118 /*
 119  * Corgi SSP Device
 120  *
 121  * Set the parent as the scoop device because a lot of SSP devices
 122  * also use scoop functions and this makes the power up/down order
 123  * work correctly.
 124  */
 125 struct platform_device corgissp_device = {
 126         .name           = "corgi-ssp",
 127         .dev            = {
 128                 .parent = &corgiscoop_device.dev,
 129         },
 130         .id             = -1,
 131 };
 132
 133 struct corgissp_machinfo corgi_ssp_machinfo = {
 134         .port           = 1,
 135         .cs_lcdcon      = CORGI_GPIO_LCDCON_CS,
 136         .cs_ads7846     = CORGI_GPIO_ADS7846_CS,
 137         .cs_max1111     = CORGI_GPIO_MAX1111_CS,
 138         .clk_lcdcon     = 76,
 139         .clk_ads7846    = 2,
 140         .clk_max1111    = 8,
 141 };
 142
 143
 144 /*
 145  * LCD/Framebuffer
 146  */
 147 static void w100_lcdtg_suspend(struct w100fb_par *par)
 148 {
 149         corgi_lcdtg_suspend();
 150 }
 151
 152 static void w100_lcdtg_init(struct w100fb_par *par)
 153 {
 154         corgi_lcdtg_hw_init(par->xres);
 155 }
 156
 157
 158 static struct w100_tg_info corgi_lcdtg_info = {
 159         .change  = w100_lcdtg_init,
 160         .suspend = w100_lcdtg_suspend,
 161         .resume  = w100_lcdtg_init,
 162 };
 163
 164 static struct w100_mem_info corgi_fb_mem = {
 165         .ext_cntl          = 0x00040003,
 166         .sdram_mode_reg    = 0x00650021,
 167         .ext_timing_cntl   = 0x10002a4a,
 168         .io_cntl           = 0x7ff87012,
 169         .size              = 0x1fffff,
 170 };
 171
 172 static struct w100_gen_regs corgi_fb_regs = {
 173         .lcd_format    = 0x00000003,
 174         .lcdd_cntl1    = 0x01CC0000,
 175         .lcdd_cntl2    = 0x0003FFFF,
 176         .genlcd_cntl1  = 0x00FFFF0D,
 177         .genlcd_cntl2  = 0x003F3003,
 178         .genlcd_cntl3  = 0x000102aa,
 179 };
 180
 181 static struct w100_gpio_regs corgi_fb_gpio = {
 182         .init_data1   = 0x000000bf,
 183         .init_data2   = 0x00000000,
 184         .gpio_dir1    = 0x00000000,
 185         .gpio_oe1     = 0x03c0feff,
 186         .gpio_dir2    = 0x00000000,
 187         .gpio_oe2     = 0x00000000,
 188 };
 189
 190 static struct w100_mode corgi_fb_modes[] = {
 191 {
 192         .xres            = 480,
 193         .yres            = 640,
 194         .left_margin     = 0x56,
 195         .right_margin    = 0x55,
 196         .upper_margin    = 0x03,
 197         .lower_margin    = 0x00,
 198         .crtc_ss         = 0x82360056,
 199         .crtc_ls         = 0xA0280000,
 200         .crtc_gs         = 0x80280028,
 201         .crtc_vpos_gs    = 0x02830002,
 202         .crtc_rev        = 0x00400008,
 203         .crtc_dclk       = 0xA0000000,
 204         .crtc_gclk       = 0x8015010F,
 205         .crtc_goe        = 0x80100110,
 206         .crtc_ps1_active = 0x41060010,
 207         .pll_freq        = 75,
 208         .fast_pll_freq   = 100,
 209         .sysclk_src      = CLK_SRC_PLL,
 210         .sysclk_divider  = 0,
 211         .pixclk_src      = CLK_SRC_PLL,
 212         .pixclk_divider  = 2,
 213         .pixclk_divider_rotated = 6,
 214 },{
 215         .xres            = 240,
 216         .yres            = 320,
 217         .left_margin     = 0x27,
 218         .right_margin    = 0x2e,
 219         .upper_margin    = 0x01,
 220         .lower_margin    = 0x00,
 221         .crtc_ss         = 0x81170027,
 222         .crtc_ls         = 0xA0140000,
 223         .crtc_gs         = 0xC0140014,
 224         .crtc_vpos_gs    = 0x00010141,
 225         .crtc_rev        = 0x00400008,
 226         .crtc_dclk       = 0xA0000000,
 227         .crtc_gclk       = 0x8015010F,
 228         .crtc_goe        = 0x80100110,
 229         .crtc_ps1_active = 0x41060010,
 230         .pll_freq        = 0,
 231         .fast_pll_freq   = 0,
 232         .sysclk_src      = CLK_SRC_XTAL,
 233         .sysclk_divider  = 0,
 234         .pixclk_src      = CLK_SRC_XTAL,
 235         .pixclk_divider  = 1,
 236         .pixclk_divider_rotated = 1,
 237 },
 238
 239 };
 240
 241 static struct w100fb_mach_info corgi_fb_info = {
 242         .tg         = &corgi_lcdtg_info,
 243         .init_mode  = INIT_MODE_ROTATED,
 244         .mem        = &corgi_fb_mem,
 245         .regs       = &corgi_fb_regs,
 246         .modelist   = &corgi_fb_modes[0],
 247         .num_modes  = 2,
 248         .gpio       = &corgi_fb_gpio,
 249         .xtal_freq  = 12500000,
 250         .xtal_dbl   = 0,
 251 };
 252
 253 static struct resource corgi_fb_resources[] = {
 254         [0] = {
 255                 .start   = 0x08000000,
 256                 .end     = 0x08ffffff,
 257                 .flags   = IORESOURCE_MEM,
 258         },
 259 };
 260
 261 static struct platform_device corgifb_device = {
 262         .name           = "w100fb",
 263         .id             = -1,
 264         .num_resources  = ARRAY_SIZE(corgi_fb_resources),
 265         .resource       = corgi_fb_resources,
 266         .dev            = {
 267                 .platform_data = &corgi_fb_info,
 268                 .parent = &corgissp_device.dev,
 269         },
 270
 271 };
 272
 273
 274 /*
 275  * Corgi Backlight Device
 276  */
 277 static void corgi_bl_kick_battery(void)
 278 {
 279         void (*kick_batt)(void);
 280
 281         kick_batt = symbol_get(sharpsl_battery_kick);
 282         if (kick_batt) {
 283                 kick_batt();
 284                 symbol_put(sharpsl_battery_kick);
 285         }
 286 }
 287
 288 static void corgi_bl_set_intensity(int intensity)
 289 {
 290         if (intensity > 0x10)
 291                 intensity += 0x10;
 292
 293         /* Bits 0-4 are accessed via the SSP interface */
 294         corgi_ssp_blduty_set(intensity & 0x1f);
 295
 296         /* Bit 5 is via SCOOP */
 297         if (intensity & 0x0020)
 298                 set_scoop_gpio(&corgiscoop_device.dev, CORGI_SCP_BACKLIGHT_CONT);
 299         else
 300                 reset_scoop_gpio(&corgiscoop_device.dev, CORGI_SCP_BACKLIGHT_CONT);
 301 }
 302
 303 static struct generic_bl_info corgi_bl_machinfo = {
 304         .name = "corgi-bl",
 305         .max_intensity = 0x2f,
 306         .default_intensity = 0x1f,
 307         .limit_mask = 0x0b,
 308         .set_bl_intensity = corgi_bl_set_intensity,
 309         .kick_battery = corgi_bl_kick_battery,
 310 };
 311
 312 static struct platform_device corgibl_device = {
 313         .name           = "generic-bl",
 314         .dev            = {
 315                 .parent = &corgifb_device.dev,
 316                 .platform_data  = &corgi_bl_machinfo,
 317         },
 318         .id             = -1,
 319 };
 320
 321
 322 /*
 323  * Corgi Keyboard Device
 324  */
 325 static struct platform_device corgikbd_device = {
 326         .name           = "corgi-keyboard",
 327         .id             = -1,
 328 };
 329
 330
 331 /*
 332  * Corgi LEDs
 333  */
 334 static struct platform_device corgiled_device = {
 335         .name           = "corgi-led",
 336         .id             = -1,
 337 };
 338
 339
 340 /*
 341  * Corgi Touch Screen Device
 342  */
 343 static unsigned long (*get_hsync_invperiod)(struct device *dev);
 344
 345 static void inline sharpsl_wait_sync(int gpio)
 346 {
 347         while((GPLR(gpio) & GPIO_bit(gpio)) == 0);
 348         while((GPLR(gpio) & GPIO_bit(gpio)) != 0);
 349 }
 350
 351 static unsigned long corgi_get_hsync_invperiod(void)
 352 {
 353         if (!get_hsync_invperiod)
 354                 get_hsync_invperiod = symbol_get(w100fb_get_hsynclen);
 355         if (!get_hsync_invperiod)
 356                 return 0;
 357
 358         return get_hsync_invperiod(&corgifb_device.dev);
 359 }
 360
 361 static void corgi_put_hsync(void)
 362 {
 363         if (get_hsync_invperiod)
 364                 symbol_put(w100fb_get_hsynclen);
 365         get_hsync_invperiod = NULL;
 366 }
 367
 368 static void corgi_wait_hsync(void)
 369 {
 370         sharpsl_wait_sync(CORGI_GPIO_HSYNC);
 371 }
 372
 373 static struct resource corgits_resources[] = {
 374         [0] = {
 375                 .start          = CORGI_IRQ_GPIO_TP_INT,
 376                 .end            = CORGI_IRQ_GPIO_TP_INT,
 377                 .flags          = IORESOURCE_IRQ,
 378         },
 379 };
 380
 381 static struct corgits_machinfo  corgi_ts_machinfo = {
 382         .get_hsync_invperiod = corgi_get_hsync_invperiod,
 383         .put_hsync           = corgi_put_hsync,
 384         .wait_hsync          = corgi_wait_hsync,
 385 };
 386
 387 static struct platform_device corgits_device = {
 388         .name           = "corgi-ts",
 389         .dev            = {
 390                 .parent = &corgissp_device.dev,
 391                 .platform_data  = &corgi_ts_machinfo,
 392         },
 393         .id             = -1,
 394         .num_resources  = ARRAY_SIZE(corgits_resources),
 395         .resource       = corgits_resources,
 396 };
 397
 398
 399 /*
 400  * MMC/SD Device
 401  *
 402  * The card detect interrupt isn't debounced so we delay it by 250ms
 403  * to give the card a chance to fully insert/eject.
 404  */
 405 static struct pxamci_platform_data corgi_mci_platform_data;
 406
 407 static int corgi_mci_init(struct device *dev, irq_handler_t corgi_detect_int, void *data)
 408 {
 409         int err;
 410
 411         /* setup GPIO for PXA25x MMC controller */
 412         pxa_gpio_mode(GPIO6_MMCCLK_MD);
 413         pxa_gpio_mode(GPIO8_MMCCS0_MD);
 414         pxa_gpio_mode(CORGI_GPIO_nSD_DETECT | GPIO_IN);
 415         pxa_gpio_mode(CORGI_GPIO_SD_PWR | GPIO_OUT);
 416
 417         corgi_mci_platform_data.detect_delay = msecs_to_jiffies(250);
 418
 419         err = request_irq(CORGI_IRQ_GPIO_nSD_DETECT, corgi_detect_int,
 420                           IRQF_DISABLED | IRQF_TRIGGER_RISING | IRQF_TRIGGER_FALLING,
 421                           "MMC card detect", data);
 422         if (err)
 423                 printk(KERN_ERR "corgi_mci_init: MMC/SD: can't request MMC card detect IRQ\n");
 424
 425         return err;
 426 }
 427
 428 static void corgi_mci_setpower(struct device *dev, unsigned int vdd)
 429 {
 430         struct pxamci_platform_data* p_d = dev->platform_data;
 431
 432         if (( 1 << vdd) & p_d->ocr_mask)
 433                 GPSR1 = GPIO_bit(CORGI_GPIO_SD_PWR);
 434         else
 435                 GPCR1 = GPIO_bit(CORGI_GPIO_SD_PWR);
 436 }
 437
 438 static int corgi_mci_get_ro(struct device *dev)
 439 {
 440         return GPLR(CORGI_GPIO_nSD_WP) & GPIO_bit(CORGI_GPIO_nSD_WP);
 441 }
 442
 443 static void corgi_mci_exit(struct device *dev, void *data)
 444 {
 445         free_irq(CORGI_IRQ_GPIO_nSD_DETECT, data);
 446 }
 447
 448 static struct pxamci_platform_data corgi_mci_platform_data = {
 449         .ocr_mask       = MMC_VDD_32_33|MMC_VDD_33_34,
 450         .init           = corgi_mci_init,
 451         .get_ro         = corgi_mci_get_ro,
 452         .setpower       = corgi_mci_setpower,
 453         .exit           = corgi_mci_exit,
 454 };
 455
 456
 457 /*
 458  * Irda
 459  */
 460 static void corgi_irda_transceiver_mode(struct device *dev, int mode)
 461 {
 462         if (mode & IR_OFF)
 463                 GPSR(CORGI_GPIO_IR_ON) = GPIO_bit(CORGI_GPIO_IR_ON);
 464         else
 465                 GPCR(CORGI_GPIO_IR_ON) = GPIO_bit(CORGI_GPIO_IR_ON);
 466 }
 467
 468 static struct pxaficp_platform_data corgi_ficp_platform_data = {
 469         .transceiver_cap  = IR_SIRMODE | IR_OFF,
 470         .transceiver_mode = corgi_irda_transceiver_mode,
 471 };
 472
 473
 474 /*
 475  * USB Device Controller
 476  */
 477 static struct pxa2xx_udc_mach_info udc_info __initdata = {
 478         /* no connect GPIO; corgi can't tell connection status */
 479         .gpio_pullup            = CORGI_GPIO_USB_PULLUP,
 480 };
 481
 482
 483 static struct platform_device *devices[] __initdata = {
 484         &corgiscoop_device,
 485         &corgissp_device,
 486         &corgifb_device,
 487         &corgikbd_device,
 488         &corgibl_device,
 489         &corgits_device,
 490         &corgiled_device,
 491 };
 492
 493 static void corgi_poweroff(void)
 494 {
 495         RCSR = RCSR_HWR | RCSR_WDR | RCSR_SMR | RCSR_GPR;
 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         RCSR = RCSR_HWR | RCSR_WDR | RCSR_SMR | RCSR_GPR;
 506
 507         if (!machine_is_corgi())
 508                 /* Green LED on tells the bootloader to reboot */
 509                 set_scoop_gpio(&corgiscoop_device.dev, CORGI_SCP_LED_GREEN);
 510         arm_machine_restart('h');
 511 }
 512
 513 static void __init corgi_init(void)
 514 {
 515         pm_power_off = corgi_poweroff;
 516         arm_pm_restart = corgi_restart;
 517
 518         /* setup sleep mode values */
 519         PWER  = 0x00000002;
 520         PFER  = 0x00000000;
 521         PRER  = 0x00000002;
 522         PGSR0 = 0x0158C000;
 523         PGSR1 = 0x00FF0080;
 524         PGSR2 = 0x0001C004;
 525         /* Stop 3.6MHz and drive HIGH to PCMCIA and CS */
 526         PCFR |= PCFR_OPDE;
 527
 528         corgi_ssp_set_machinfo(&corgi_ssp_machinfo);
 529
 530         pxa_gpio_mode(CORGI_GPIO_IR_ON | GPIO_OUT);
 531         pxa_gpio_mode(CORGI_GPIO_HSYNC | GPIO_IN);
 532
 533         pxa_set_udc_info(&udc_info);
 534         pxa_set_mci_info(&corgi_mci_platform_data);
 535         pxa_set_ficp_info(&corgi_ficp_platform_data);
 536
 537         platform_scoop_config = &corgi_pcmcia_config;
 538
 539         platform_add_devices(devices, ARRAY_SIZE(devices));
 540 }
 541
 542 static void __init fixup_corgi(struct machine_desc *desc,
 543                 struct tag *tags, char **cmdline, struct meminfo *mi)
 544 {
 545         sharpsl_save_param();
 546         mi->nr_banks=1;
 547         mi->bank[0].start = 0xa0000000;
 548         mi->bank[0].node = 0;
 549         if (machine_is_corgi())
 550                 mi->bank[0].size = (32*1024*1024);
 551         else
 552                 mi->bank[0].size = (64*1024*1024);
 553 }
 554
 555 #ifdef CONFIG_MACH_CORGI
 556 MACHINE_START(CORGI, "SHARP Corgi")
 557         .phys_io        = 0x40000000,
 558         .io_pg_offst    = (io_p2v(0x40000000) >> 18) & 0xfffc,
 559         .fixup          = fixup_corgi,
 560         .map_io         = pxa_map_io,
 561         .init_irq       = pxa25x_init_irq,
 562         .init_machine   = corgi_init,
 563         .timer          = &pxa_timer,
 564 MACHINE_END
 565 #endif
 566
 567 #ifdef CONFIG_MACH_SHEPHERD
 568 MACHINE_START(SHEPHERD, "SHARP Shepherd")
 569         .phys_io        = 0x40000000,
 570         .io_pg_offst    = (io_p2v(0x40000000) >> 18) & 0xfffc,
 571         .fixup          = fixup_corgi,
 572         .map_io         = pxa_map_io,
 573         .init_irq       = pxa25x_init_irq,
 574         .init_machine   = corgi_init,
 575         .timer          = &pxa_timer,
 576 MACHINE_END
 577 #endif
 578
 579 #ifdef CONFIG_MACH_HUSKY
 580 MACHINE_START(HUSKY, "SHARP Husky")
 581         .phys_io        = 0x40000000,
 582         .io_pg_offst    = (io_p2v(0x40000000) >> 18) & 0xfffc,
 583         .fixup          = fixup_corgi,
 584         .map_io         = pxa_map_io,
 585         .init_irq       = pxa25x_init_irq,
 586         .init_machine   = corgi_init,
 587         .timer          = &pxa_timer,
 588 MACHINE_END
 589 #endif
 590