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 <mach/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 <mach/pxa-regs.h>
  39 #include <mach/pxa2xx-regs.h>
  40 #include <mach/pxa2xx-gpio.h>
  41 #include <mach/i2c.h>
  42 #include <mach/irda.h>
  43 #include <mach/mmc.h>
  44 #include <mach/udc.h>
  45 #include <mach/corgi.h>
  46 #include <mach/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 /*
  57  * Corgi SCOOP Device
  58  */
  59 static struct resource corgi_scoop_resources[] = {
  60         [0] = {
  61                 .start          = 0x10800000,
  62                 .end            = 0x10800fff,
  63                 .flags          = IORESOURCE_MEM,
  64         },
  65 };
  66
  67 static struct scoop_config corgi_scoop_setup = {
  68         .io_dir         = CORGI_SCOOP_IO_DIR,
  69         .io_out         = CORGI_SCOOP_IO_OUT,
  70 };
  71
  72 struct platform_device corgiscoop_device = {
  73         .name           = "sharp-scoop",
  74         .id             = -1,
  75         .dev            = {
  76                 .platform_data  = &corgi_scoop_setup,
  77         },
  78         .num_resources  = ARRAY_SIZE(corgi_scoop_resources),
  79         .resource       = corgi_scoop_resources,
  80 };
  81
  82 static void corgi_pcmcia_init(void)
  83 {
  84         /* Setup default state of GPIO outputs
  85            before we enable them as outputs. */
  86         GPSR(GPIO48_nPOE) = GPIO_bit(GPIO48_nPOE) |
  87                 GPIO_bit(GPIO49_nPWE) | GPIO_bit(GPIO50_nPIOR) |
  88                 GPIO_bit(GPIO51_nPIOW) | GPIO_bit(GPIO52_nPCE_1) |
  89                 GPIO_bit(GPIO53_nPCE_2);
  90
  91         pxa_gpio_mode(GPIO48_nPOE_MD);
  92         pxa_gpio_mode(GPIO49_nPWE_MD);
  93         pxa_gpio_mode(GPIO50_nPIOR_MD);
  94         pxa_gpio_mode(GPIO51_nPIOW_MD);
  95         pxa_gpio_mode(GPIO55_nPREG_MD);
  96         pxa_gpio_mode(GPIO56_nPWAIT_MD);
  97         pxa_gpio_mode(GPIO57_nIOIS16_MD);
  98         pxa_gpio_mode(GPIO52_nPCE_1_MD);
  99         pxa_gpio_mode(GPIO53_nPCE_2_MD);
 100         pxa_gpio_mode(GPIO54_pSKTSEL_MD);
 101 }
 102
 103 static struct scoop_pcmcia_dev corgi_pcmcia_scoop[] = {
 104 {
 105         .dev        = &corgiscoop_device.dev,
 106         .irq        = CORGI_IRQ_GPIO_CF_IRQ,
 107         .cd_irq     = CORGI_IRQ_GPIO_CF_CD,
 108         .cd_irq_str = "PCMCIA0 CD",
 109 },
 110 };
 111
 112 static struct scoop_pcmcia_config corgi_pcmcia_config = {
 113         .devs         = &corgi_pcmcia_scoop[0],
 114         .num_devs     = 1,
 115         .pcmcia_init  = corgi_pcmcia_init,
 116 };
 117
 118 EXPORT_SYMBOL(corgiscoop_device);
 119
 120
 121 /*
 122  * Corgi SSP Device
 123  *
 124  * Set the parent as the scoop device because a lot of SSP devices
 125  * also use scoop functions and this makes the power up/down order
 126  * work correctly.
 127  */
 128 struct platform_device corgissp_device = {
 129         .name           = "corgi-ssp",
 130         .dev            = {
 131                 .parent = &corgiscoop_device.dev,
 132         },
 133         .id             = -1,
 134 };
 135
 136 struct corgissp_machinfo corgi_ssp_machinfo = {
 137         .port           = 1,
 138         .cs_lcdcon      = CORGI_GPIO_LCDCON_CS,
 139         .cs_ads7846     = CORGI_GPIO_ADS7846_CS,
 140         .cs_max1111     = CORGI_GPIO_MAX1111_CS,
 141         .clk_lcdcon     = 76,
 142         .clk_ads7846    = 2,
 143         .clk_max1111    = 8,
 144 };
 145
 146
 147 /*
 148  * LCD/Framebuffer
 149  */
 150 static void w100_lcdtg_suspend(struct w100fb_par *par)
 151 {
 152         corgi_lcdtg_suspend();
 153 }
 154
 155 static void w100_lcdtg_init(struct w100fb_par *par)
 156 {
 157         corgi_lcdtg_hw_init(par->xres);
 158 }
 159
 160
 161 static struct w100_tg_info corgi_lcdtg_info = {
 162         .change  = w100_lcdtg_init,
 163         .suspend = w100_lcdtg_suspend,
 164         .resume  = w100_lcdtg_init,
 165 };
 166
 167 static struct w100_mem_info corgi_fb_mem = {
 168         .ext_cntl          = 0x00040003,
 169         .sdram_mode_reg    = 0x00650021,
 170         .ext_timing_cntl   = 0x10002a4a,
 171         .io_cntl           = 0x7ff87012,
 172         .size              = 0x1fffff,
 173 };
 174
 175 static struct w100_gen_regs corgi_fb_regs = {
 176         .lcd_format    = 0x00000003,
 177         .lcdd_cntl1    = 0x01CC0000,
 178         .lcdd_cntl2    = 0x0003FFFF,
 179         .genlcd_cntl1  = 0x00FFFF0D,
 180         .genlcd_cntl2  = 0x003F3003,
 181         .genlcd_cntl3  = 0x000102aa,
 182 };
 183
 184 static struct w100_gpio_regs corgi_fb_gpio = {
 185         .init_data1   = 0x000000bf,
 186         .init_data2   = 0x00000000,
 187         .gpio_dir1    = 0x00000000,
 188         .gpio_oe1     = 0x03c0feff,
 189         .gpio_dir2    = 0x00000000,
 190         .gpio_oe2     = 0x00000000,
 191 };
 192
 193 static struct w100_mode corgi_fb_modes[] = {
 194 {
 195         .xres            = 480,
 196         .yres            = 640,
 197         .left_margin     = 0x56,
 198         .right_margin    = 0x55,
 199         .upper_margin    = 0x03,
 200         .lower_margin    = 0x00,
 201         .crtc_ss         = 0x82360056,
 202         .crtc_ls         = 0xA0280000,
 203         .crtc_gs         = 0x80280028,
 204         .crtc_vpos_gs    = 0x02830002,
 205         .crtc_rev        = 0x00400008,
 206         .crtc_dclk       = 0xA0000000,
 207         .crtc_gclk       = 0x8015010F,
 208         .crtc_goe        = 0x80100110,
 209         .crtc_ps1_active = 0x41060010,
 210         .pll_freq        = 75,
 211         .fast_pll_freq   = 100,
 212         .sysclk_src      = CLK_SRC_PLL,
 213         .sysclk_divider  = 0,
 214         .pixclk_src      = CLK_SRC_PLL,
 215         .pixclk_divider  = 2,
 216         .pixclk_divider_rotated = 6,
 217 },{
 218         .xres            = 240,
 219         .yres            = 320,
 220         .left_margin     = 0x27,
 221         .right_margin    = 0x2e,
 222         .upper_margin    = 0x01,
 223         .lower_margin    = 0x00,
 224         .crtc_ss         = 0x81170027,
 225         .crtc_ls         = 0xA0140000,
 226         .crtc_gs         = 0xC0140014,
 227         .crtc_vpos_gs    = 0x00010141,
 228         .crtc_rev        = 0x00400008,
 229         .crtc_dclk       = 0xA0000000,
 230         .crtc_gclk       = 0x8015010F,
 231         .crtc_goe        = 0x80100110,
 232         .crtc_ps1_active = 0x41060010,
 233         .pll_freq        = 0,
 234         .fast_pll_freq   = 0,
 235         .sysclk_src      = CLK_SRC_XTAL,
 236         .sysclk_divider  = 0,
 237         .pixclk_src      = CLK_SRC_XTAL,
 238         .pixclk_divider  = 1,
 239         .pixclk_divider_rotated = 1,
 240 },
 241
 242 };
 243
 244 static struct w100fb_mach_info corgi_fb_info = {
 245         .tg         = &corgi_lcdtg_info,
 246         .init_mode  = INIT_MODE_ROTATED,
 247         .mem        = &corgi_fb_mem,
 248         .regs       = &corgi_fb_regs,
 249         .modelist   = &corgi_fb_modes[0],
 250         .num_modes  = 2,
 251         .gpio       = &corgi_fb_gpio,
 252         .xtal_freq  = 12500000,
 253         .xtal_dbl   = 0,
 254 };
 255
 256 static struct resource corgi_fb_resources[] = {
 257         [0] = {
 258                 .start   = 0x08000000,
 259                 .end     = 0x08ffffff,
 260                 .flags   = IORESOURCE_MEM,
 261         },
 262 };
 263
 264 static struct platform_device corgifb_device = {
 265         .name           = "w100fb",
 266         .id             = -1,
 267         .num_resources  = ARRAY_SIZE(corgi_fb_resources),
 268         .resource       = corgi_fb_resources,
 269         .dev            = {
 270                 .platform_data = &corgi_fb_info,
 271                 .parent = &corgissp_device.dev,
 272         },
 273
 274 };
 275
 276
 277 /*
 278  * Corgi Backlight Device
 279  */
 280 static void corgi_bl_kick_battery(void)
 281 {
 282         void (*kick_batt)(void);
 283
 284         kick_batt = symbol_get(sharpsl_battery_kick);
 285         if (kick_batt) {
 286                 kick_batt();
 287                 symbol_put(sharpsl_battery_kick);
 288         }
 289 }
 290
 291 static void corgi_bl_set_intensity(int intensity)
 292 {
 293         if (intensity > 0x10)
 294                 intensity += 0x10;
 295
 296         /* Bits 0-4 are accessed via the SSP interface */
 297         corgi_ssp_blduty_set(intensity & 0x1f);
 298
 299         /* Bit 5 is via SCOOP */
 300         if (intensity & 0x0020)
 301                 set_scoop_gpio(&corgiscoop_device.dev, CORGI_SCP_BACKLIGHT_CONT);
 302         else
 303                 reset_scoop_gpio(&corgiscoop_device.dev, CORGI_SCP_BACKLIGHT_CONT);
 304 }
 305
 306 static struct generic_bl_info corgi_bl_machinfo = {
 307         .name = "corgi-bl",
 308         .max_intensity = 0x2f,
 309         .default_intensity = 0x1f,
 310         .limit_mask = 0x0b,
 311         .set_bl_intensity = corgi_bl_set_intensity,
 312         .kick_battery = corgi_bl_kick_battery,
 313 };
 314
 315 static struct platform_device corgibl_device = {
 316         .name           = "generic-bl",
 317         .dev            = {
 318                 .parent = &corgifb_device.dev,
 319                 .platform_data  = &corgi_bl_machinfo,
 320         },
 321         .id             = -1,
 322 };
 323
 324
 325 /*
 326  * Corgi Keyboard Device
 327  */
 328 static struct platform_device corgikbd_device = {
 329         .name           = "corgi-keyboard",
 330         .id             = -1,
 331 };
 332
 333
 334 /*
 335  * Corgi LEDs
 336  */
 337 static struct platform_device corgiled_device = {
 338         .name           = "corgi-led",
 339         .id             = -1,
 340 };
 341
 342
 343 /*
 344  * Corgi Touch Screen Device
 345  */
 346 static unsigned long (*get_hsync_invperiod)(struct device *dev);
 347
 348 static void inline sharpsl_wait_sync(int gpio)
 349 {
 350         while((GPLR(gpio) & GPIO_bit(gpio)) == 0);
 351         while((GPLR(gpio) & GPIO_bit(gpio)) != 0);
 352 }
 353
 354 static unsigned long corgi_get_hsync_invperiod(void)
 355 {
 356         if (!get_hsync_invperiod)
 357                 get_hsync_invperiod = symbol_get(w100fb_get_hsynclen);
 358         if (!get_hsync_invperiod)
 359                 return 0;
 360
 361         return get_hsync_invperiod(&corgifb_device.dev);
 362 }
 363
 364 static void corgi_put_hsync(void)
 365 {
 366         if (get_hsync_invperiod)
 367                 symbol_put(w100fb_get_hsynclen);
 368         get_hsync_invperiod = NULL;
 369 }
 370
 371 static void corgi_wait_hsync(void)
 372 {
 373         sharpsl_wait_sync(CORGI_GPIO_HSYNC);
 374 }
 375
 376 static struct resource corgits_resources[] = {
 377         [0] = {
 378                 .start          = CORGI_IRQ_GPIO_TP_INT,
 379                 .end            = CORGI_IRQ_GPIO_TP_INT,
 380                 .flags          = IORESOURCE_IRQ,
 381         },
 382 };
 383
 384 static struct corgits_machinfo  corgi_ts_machinfo = {
 385         .get_hsync_invperiod = corgi_get_hsync_invperiod,
 386         .put_hsync           = corgi_put_hsync,
 387         .wait_hsync          = corgi_wait_hsync,
 388 };
 389
 390 static struct platform_device corgits_device = {
 391         .name           = "corgi-ts",
 392         .dev            = {
 393                 .parent = &corgissp_device.dev,
 394                 .platform_data  = &corgi_ts_machinfo,
 395         },
 396         .id             = -1,
 397         .num_resources  = ARRAY_SIZE(corgits_resources),
 398         .resource       = corgits_resources,
 399 };
 400
 401
 402 /*
 403  * MMC/SD Device
 404  *
 405  * The card detect interrupt isn't debounced so we delay it by 250ms
 406  * to give the card a chance to fully insert/eject.
 407  */
 408 static struct pxamci_platform_data corgi_mci_platform_data;
 409
 410 static int corgi_mci_init(struct device *dev, irq_handler_t corgi_detect_int, void *data)
 411 {
 412         int err;
 413
 414         /* setup GPIO for PXA25x MMC controller */
 415         pxa_gpio_mode(GPIO6_MMCCLK_MD);
 416         pxa_gpio_mode(GPIO8_MMCCS0_MD);
 417         pxa_gpio_mode(CORGI_GPIO_nSD_DETECT | GPIO_IN);
 418         pxa_gpio_mode(CORGI_GPIO_SD_PWR | GPIO_OUT);
 419
 420         corgi_mci_platform_data.detect_delay = msecs_to_jiffies(250);
 421
 422         err = request_irq(CORGI_IRQ_GPIO_nSD_DETECT, corgi_detect_int,
 423                           IRQF_DISABLED | IRQF_TRIGGER_RISING | IRQF_TRIGGER_FALLING,
 424                           "MMC card detect", data);
 425         if (err)
 426                 printk(KERN_ERR "corgi_mci_init: MMC/SD: can't request MMC card detect IRQ\n");
 427
 428         return err;
 429 }
 430
 431 static void corgi_mci_setpower(struct device *dev, unsigned int vdd)
 432 {
 433         struct pxamci_platform_data* p_d = dev->platform_data;
 434
 435         if (( 1 << vdd) & p_d->ocr_mask)
 436                 GPSR1 = GPIO_bit(CORGI_GPIO_SD_PWR);
 437         else
 438                 GPCR1 = GPIO_bit(CORGI_GPIO_SD_PWR);
 439 }
 440
 441 static int corgi_mci_get_ro(struct device *dev)
 442 {
 443         return GPLR(CORGI_GPIO_nSD_WP) & GPIO_bit(CORGI_GPIO_nSD_WP);
 444 }
 445
 446 static void corgi_mci_exit(struct device *dev, void *data)
 447 {
 448         free_irq(CORGI_IRQ_GPIO_nSD_DETECT, data);
 449 }
 450
 451 static struct pxamci_platform_data corgi_mci_platform_data = {
 452         .ocr_mask       = MMC_VDD_32_33|MMC_VDD_33_34,
 453         .init           = corgi_mci_init,
 454         .get_ro         = corgi_mci_get_ro,
 455         .setpower       = corgi_mci_setpower,
 456         .exit           = corgi_mci_exit,
 457 };
 458
 459
 460 /*
 461  * Irda
 462  */
 463 static void corgi_irda_transceiver_mode(struct device *dev, int mode)
 464 {
 465         if (mode & IR_OFF)
 466                 GPSR(CORGI_GPIO_IR_ON) = GPIO_bit(CORGI_GPIO_IR_ON);
 467         else
 468                 GPCR(CORGI_GPIO_IR_ON) = GPIO_bit(CORGI_GPIO_IR_ON);
 469         pxa2xx_transceiver_mode(dev, mode);
 470 }
 471
 472 static struct pxaficp_platform_data corgi_ficp_platform_data = {
 473         .transceiver_cap  = IR_SIRMODE | IR_OFF,
 474         .transceiver_mode = corgi_irda_transceiver_mode,
 475 };
 476
 477
 478 /*
 479  * USB Device Controller
 480  */
 481 static struct pxa2xx_udc_mach_info udc_info __initdata = {
 482         /* no connect GPIO; corgi can't tell connection status */
 483         .gpio_pullup            = CORGI_GPIO_USB_PULLUP,
 484 };
 485
 486
 487 static struct platform_device *devices[] __initdata = {
 488         &corgiscoop_device,
 489         &corgissp_device,
 490         &corgifb_device,
 491         &corgikbd_device,
 492         &corgibl_device,
 493         &corgits_device,
 494         &corgiled_device,
 495 };
 496
 497 static void corgi_poweroff(void)
 498 {
 499         if (!machine_is_corgi())
 500                 /* Green LED off tells the bootloader to halt */
 501                 reset_scoop_gpio(&corgiscoop_device.dev, CORGI_SCP_LED_GREEN);
 502         arm_machine_restart('h');
 503 }
 504
 505 static void corgi_restart(char mode)
 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         pxa_set_i2c_info(NULL);
 537
 538         platform_scoop_config = &corgi_pcmcia_config;
 539
 540         platform_add_devices(devices, ARRAY_SIZE(devices));
 541 }
 542
 543 static void __init fixup_corgi(struct machine_desc *desc,
 544                 struct tag *tags, char **cmdline, struct meminfo *mi)
 545 {
 546         sharpsl_save_param();
 547         mi->nr_banks=1;
 548         mi->bank[0].start = 0xa0000000;
 549         mi->bank[0].node = 0;
 550         if (machine_is_corgi())
 551                 mi->bank[0].size = (32*1024*1024);
 552         else
 553                 mi->bank[0].size = (64*1024*1024);
 554 }
 555
 556 #ifdef CONFIG_MACH_CORGI
 557 MACHINE_START(CORGI, "SHARP Corgi")
 558         .phys_io        = 0x40000000,
 559         .io_pg_offst    = (io_p2v(0x40000000) >> 18) & 0xfffc,
 560         .fixup          = fixup_corgi,
 561         .map_io         = pxa_map_io,
 562         .init_irq       = pxa25x_init_irq,
 563         .init_machine   = corgi_init,
 564         .timer          = &pxa_timer,
 565 MACHINE_END
 566 #endif
 567
 568 #ifdef CONFIG_MACH_SHEPHERD
 569 MACHINE_START(SHEPHERD, "SHARP Shepherd")
 570         .phys_io        = 0x40000000,
 571         .io_pg_offst    = (io_p2v(0x40000000) >> 18) & 0xfffc,
 572         .fixup          = fixup_corgi,
 573         .map_io         = pxa_map_io,
 574         .init_irq       = pxa25x_init_irq,
 575         .init_machine   = corgi_init,
 576         .timer          = &pxa_timer,
 577 MACHINE_END
 578 #endif
 579
 580 #ifdef CONFIG_MACH_HUSKY
 581 MACHINE_START(HUSKY, "SHARP Husky")
 582         .phys_io        = 0x40000000,
 583         .io_pg_offst    = (io_p2v(0x40000000) >> 18) & 0xfffc,
 584         .fixup          = fixup_corgi,
 585         .map_io         = pxa_map_io,
 586         .init_irq       = pxa25x_init_irq,
 587         .init_machine   = corgi_init,
 588         .timer          = &pxa_timer,
 589 MACHINE_END
 590 #endif
 591