kernel/2.6.29.6-aldebaran-rt/arch/arm/mach-pxa/cm-x2xx.c

   1 /*
   2  * linux/arch/arm/mach-pxa/cm-x2xx.c
   3  *
   4  * Copyright (C) 2008 CompuLab, Ltd.
   5  * Mike Rapoport <mike@compulab.co.il>
   6  *
   7  * This program is free software; you can redistribute it and/or modify
   8  * it under the terms of the GNU General Public License version 2 as
   9  * published by the Free Software Foundation.
  10  */
  11
  12 #include <linux/platform_device.h>
  13 #include <linux/sysdev.h>
  14 #include <linux/irq.h>
  15 #include <linux/gpio.h>
  16
  17 #include <linux/dm9000.h>
  18 #include <linux/leds.h>
  19
  20 #include <asm/mach/arch.h>
  21 #include <asm/mach-types.h>
  22 #include <asm/mach/map.h>
  23
  24 #include <mach/pxa2xx-regs.h>
  25 #include <mach/mfp-pxa27x.h>
  26 #include <mach/pxa-regs.h>
  27 #include <mach/audio.h>
  28 #include <mach/pxafb.h>
  29
  30 #include <asm/hardware/it8152.h>
  31
  32 #include "generic.h"
  33 #include "cm-x2xx-pci.h"
  34
  35 extern void cmx255_init(void);
  36 extern void cmx270_init(void);
  37
  38 /* virtual addresses for statically mapped regions */
  39 #define CMX2XX_VIRT_BASE        (0xe8000000)
  40 #define CMX2XX_IT8152_VIRT      (CMX2XX_VIRT_BASE)
  41
  42 /* physical address if local-bus attached devices */
  43 #define CMX255_DM9000_PHYS_BASE (PXA_CS1_PHYS + (8 << 22))
  44 #define CMX270_DM9000_PHYS_BASE (PXA_CS1_PHYS + (6 << 22))
  45
  46 /* leds */
  47 #define CMX255_GPIO_RED         (27)
  48 #define CMX255_GPIO_GREEN       (32)
  49 #define CMX270_GPIO_RED         (93)
  50 #define CMX270_GPIO_GREEN       (94)
  51
  52 /* GPIO IRQ usage */
  53 #define GPIO22_ETHIRQ           (22)
  54 #define GPIO10_ETHIRQ           (10)
  55 #define CMX255_GPIO_IT8152_IRQ  (0)
  56 #define CMX270_GPIO_IT8152_IRQ  (22)
  57
  58 #define CMX255_ETHIRQ           IRQ_GPIO(GPIO22_ETHIRQ)
  59 #define CMX270_ETHIRQ           IRQ_GPIO(GPIO10_ETHIRQ)
  60
  61 #if defined(CONFIG_DM9000) || defined(CONFIG_DM9000_MODULE)
  62 static struct resource cmx255_dm9000_resource[] = {
  63         [0] = {
  64                 .start = CMX255_DM9000_PHYS_BASE,
  65                 .end   = CMX255_DM9000_PHYS_BASE + 3,
  66                 .flags = IORESOURCE_MEM,
  67         },
  68         [1] = {
  69                 .start = CMX255_DM9000_PHYS_BASE + 4,
  70                 .end   = CMX255_DM9000_PHYS_BASE + 4 + 500,
  71                 .flags = IORESOURCE_MEM,
  72         },
  73         [2] = {
  74                 .start = CMX255_ETHIRQ,
  75                 .end   = CMX255_ETHIRQ,
  76                 .flags = IORESOURCE_IRQ | IORESOURCE_IRQ_HIGHEDGE,
  77         }
  78 };
  79
  80 static struct resource cmx270_dm9000_resource[] = {
  81         [0] = {
  82                 .start = CMX270_DM9000_PHYS_BASE,
  83                 .end   = CMX270_DM9000_PHYS_BASE + 3,
  84                 .flags = IORESOURCE_MEM,
  85         },
  86         [1] = {
  87                 .start = CMX270_DM9000_PHYS_BASE + 8,
  88                 .end   = CMX270_DM9000_PHYS_BASE + 8 + 500,
  89                 .flags = IORESOURCE_MEM,
  90         },
  91         [2] = {
  92                 .start = CMX270_ETHIRQ,
  93                 .end   = CMX270_ETHIRQ,
  94                 .flags = IORESOURCE_IRQ | IORESOURCE_IRQ_HIGHEDGE,
  95         }
  96 };
  97
  98 static struct dm9000_plat_data cmx270_dm9000_platdata = {
  99         .flags          = DM9000_PLATF_32BITONLY,
 100 };
 101
 102 static struct platform_device cmx2xx_dm9000_device = {
 103         .name           = "dm9000",
 104         .id             = 0,
 105         .num_resources  = ARRAY_SIZE(cmx270_dm9000_resource),
 106         .dev            = {
 107                 .platform_data = &cmx270_dm9000_platdata,
 108         }
 109 };
 110
 111 static void __init cmx2xx_init_dm9000(void)
 112 {
 113         if (cpu_is_pxa25x())
 114                 cmx2xx_dm9000_device.resource = cmx255_dm9000_resource;
 115         else
 116                 cmx2xx_dm9000_device.resource = cmx270_dm9000_resource;
 117         platform_device_register(&cmx2xx_dm9000_device);
 118 }
 119 #else
 120 static inline void cmx2xx_init_dm9000(void) {}
 121 #endif
 122
 123 /* UCB1400 touchscreen controller */
 124 #if defined(CONFIG_TOUCHSCREEN_UCB1400) || defined(CONFIG_TOUCHSCREEN_UCB1400_MODULE)
 125 static struct platform_device cmx2xx_ts_device = {
 126         .name           = "ucb1400_ts",
 127         .id             = -1,
 128 };
 129
 130 static void __init cmx2xx_init_touchscreen(void)
 131 {
 132         platform_device_register(&cmx2xx_ts_device);
 133 }
 134 #else
 135 static inline void cmx2xx_init_touchscreen(void) {}
 136 #endif
 137
 138 /* CM-X270 LEDs */
 139 #if defined(CONFIG_LEDS_GPIO) || defined(CONFIG_LEDS_GPIO_MODULE)
 140 static struct gpio_led cmx2xx_leds[] = {
 141         [0] = {
 142                 .name = "cm-x2xx:red",
 143                 .default_trigger = "nand-disk",
 144                 .active_low = 1,
 145         },
 146         [1] = {
 147                 .name = "cm-x2xx:green",
 148                 .default_trigger = "heartbeat",
 149                 .active_low = 1,
 150         },
 151 };
 152
 153 static struct gpio_led_platform_data cmx2xx_gpio_led_pdata = {
 154         .num_leds = ARRAY_SIZE(cmx2xx_leds),
 155         .leds = cmx2xx_leds,
 156 };
 157
 158 static struct platform_device cmx2xx_led_device = {
 159         .name           = "leds-gpio",
 160         .id             = -1,
 161         .dev            = {
 162                 .platform_data = &cmx2xx_gpio_led_pdata,
 163         },
 164 };
 165
 166 static void __init cmx2xx_init_leds(void)
 167 {
 168         if (cpu_is_pxa25x()) {
 169                 cmx2xx_leds[0].gpio = CMX255_GPIO_RED;
 170                 cmx2xx_leds[1].gpio = CMX255_GPIO_GREEN;
 171         } else {
 172                 cmx2xx_leds[0].gpio = CMX270_GPIO_RED;
 173                 cmx2xx_leds[1].gpio = CMX270_GPIO_GREEN;
 174         }
 175         platform_device_register(&cmx2xx_led_device);
 176 }
 177 #else
 178 static inline void cmx2xx_init_leds(void) {}
 179 #endif
 180
 181 #if defined(CONFIG_FB_PXA) || defined(CONFIG_FB_PXA_MODULE)
 182 /*
 183   Display definitions
 184   keep these for backwards compatibility, although symbolic names (as
 185   e.g. in lpd270.c) looks better
 186 */
 187 #define MTYPE_STN320x240        0
 188 #define MTYPE_TFT640x480        1
 189 #define MTYPE_CRT640x480        2
 190 #define MTYPE_CRT800x600        3
 191 #define MTYPE_TFT320x240        6
 192 #define MTYPE_STN640x480        7
 193
 194 static struct pxafb_mode_info generic_stn_320x240_mode = {
 195         .pixclock       = 76923,
 196         .bpp            = 8,
 197         .xres           = 320,
 198         .yres           = 240,
 199         .hsync_len      = 3,
 200         .vsync_len      = 2,
 201         .left_margin    = 3,
 202         .upper_margin   = 0,
 203         .right_margin   = 3,
 204         .lower_margin   = 0,
 205         .sync           = (FB_SYNC_HOR_HIGH_ACT |
 206                            FB_SYNC_VERT_HIGH_ACT),
 207         .cmap_greyscale = 0,
 208 };
 209
 210 static struct pxafb_mach_info generic_stn_320x240 = {
 211         .modes          = &generic_stn_320x240_mode,
 212         .num_modes      = 1,
 213         .lcd_conn       = LCD_COLOR_STN_8BPP | LCD_PCLK_EDGE_FALL |\
 214                           LCD_AC_BIAS_FREQ(0xff),
 215         .cmap_inverse   = 0,
 216         .cmap_static    = 0,
 217 };
 218
 219 static struct pxafb_mode_info generic_tft_640x480_mode = {
 220         .pixclock       = 38461,
 221         .bpp            = 8,
 222         .xres           = 640,
 223         .yres           = 480,
 224         .hsync_len      = 60,
 225         .vsync_len      = 2,
 226         .left_margin    = 70,
 227         .upper_margin   = 10,
 228         .right_margin   = 70,
 229         .lower_margin   = 5,
 230         .sync           = 0,
 231         .cmap_greyscale = 0,
 232 };
 233
 234 static struct pxafb_mach_info generic_tft_640x480 = {
 235         .modes          = &generic_tft_640x480_mode,
 236         .num_modes      = 1,
 237         .lcd_conn       = LCD_COLOR_TFT_8BPP | LCD_PCLK_EDGE_FALL |\
 238                           LCD_AC_BIAS_FREQ(0xff),
 239         .cmap_inverse   = 0,
 240         .cmap_static    = 0,
 241 };
 242
 243 static struct pxafb_mode_info generic_crt_640x480_mode = {
 244         .pixclock       = 38461,
 245         .bpp            = 8,
 246         .xres           = 640,
 247         .yres           = 480,
 248         .hsync_len      = 63,
 249         .vsync_len      = 2,
 250         .left_margin    = 81,
 251         .upper_margin   = 33,
 252         .right_margin   = 16,
 253         .lower_margin   = 10,
 254         .sync           = (FB_SYNC_HOR_HIGH_ACT |
 255                            FB_SYNC_VERT_HIGH_ACT),
 256         .cmap_greyscale = 0,
 257 };
 258
 259 static struct pxafb_mach_info generic_crt_640x480 = {
 260         .modes          = &generic_crt_640x480_mode,
 261         .num_modes      = 1,
 262         .lcd_conn       = LCD_COLOR_TFT_8BPP | LCD_AC_BIAS_FREQ(0xff),
 263         .cmap_inverse   = 0,
 264         .cmap_static    = 0,
 265 };
 266
 267 static struct pxafb_mode_info generic_crt_800x600_mode = {
 268         .pixclock       = 28846,
 269         .bpp            = 8,
 270         .xres           = 800,
 271         .yres           = 600,
 272         .hsync_len      = 63,
 273         .vsync_len      = 2,
 274         .left_margin    = 26,
 275         .upper_margin   = 21,
 276         .right_margin   = 26,
 277         .lower_margin   = 11,
 278         .sync           = (FB_SYNC_HOR_HIGH_ACT |
 279                            FB_SYNC_VERT_HIGH_ACT),
 280         .cmap_greyscale = 0,
 281 };
 282
 283 static struct pxafb_mach_info generic_crt_800x600 = {
 284         .modes          = &generic_crt_800x600_mode,
 285         .num_modes      = 1,
 286         .lcd_conn       = LCD_COLOR_TFT_8BPP | LCD_AC_BIAS_FREQ(0xff),
 287         .cmap_inverse   = 0,
 288         .cmap_static    = 0,
 289 };
 290
 291 static struct pxafb_mode_info generic_tft_320x240_mode = {
 292         .pixclock       = 134615,
 293         .bpp            = 16,
 294         .xres           = 320,
 295         .yres           = 240,
 296         .hsync_len      = 63,
 297         .vsync_len      = 7,
 298         .left_margin    = 75,
 299         .upper_margin   = 0,
 300         .right_margin   = 15,
 301         .lower_margin   = 15,
 302         .sync           = 0,
 303         .cmap_greyscale = 0,
 304 };
 305
 306 static struct pxafb_mach_info generic_tft_320x240 = {
 307         .modes          = &generic_tft_320x240_mode,
 308         .num_modes      = 1,
 309         .lcd_conn       = LCD_COLOR_TFT_16BPP | LCD_AC_BIAS_FREQ(0xff),
 310         .cmap_inverse   = 0,
 311         .cmap_static    = 0,
 312 };
 313
 314 static struct pxafb_mode_info generic_stn_640x480_mode = {
 315         .pixclock       = 57692,
 316         .bpp            = 8,
 317         .xres           = 640,
 318         .yres           = 480,
 319         .hsync_len      = 4,
 320         .vsync_len      = 2,
 321         .left_margin    = 10,
 322         .upper_margin   = 5,
 323         .right_margin   = 10,
 324         .lower_margin   = 5,
 325         .sync           = (FB_SYNC_HOR_HIGH_ACT |
 326                            FB_SYNC_VERT_HIGH_ACT),
 327         .cmap_greyscale = 0,
 328 };
 329
 330 static struct pxafb_mach_info generic_stn_640x480 = {
 331         .modes          = &generic_stn_640x480_mode,
 332         .num_modes      = 1,
 333         .lcd_conn       = LCD_COLOR_STN_8BPP | LCD_AC_BIAS_FREQ(0xff),
 334         .cmap_inverse   = 0,
 335         .cmap_static    = 0,
 336 };
 337
 338 static struct pxafb_mach_info *cmx2xx_display = &generic_crt_640x480;
 339
 340 static int __init cmx2xx_set_display(char *str)
 341 {
 342         int disp_type = simple_strtol(str, NULL, 0);
 343         switch (disp_type) {
 344         case MTYPE_STN320x240:
 345                 cmx2xx_display = &generic_stn_320x240;
 346                 break;
 347         case MTYPE_TFT640x480:
 348                 cmx2xx_display = &generic_tft_640x480;
 349                 break;
 350         case MTYPE_CRT640x480:
 351                 cmx2xx_display = &generic_crt_640x480;
 352                 break;
 353         case MTYPE_CRT800x600:
 354                 cmx2xx_display = &generic_crt_800x600;
 355                 break;
 356         case MTYPE_TFT320x240:
 357                 cmx2xx_display = &generic_tft_320x240;
 358                 break;
 359         case MTYPE_STN640x480:
 360                 cmx2xx_display = &generic_stn_640x480;
 361                 break;
 362         default: /* fallback to CRT 640x480 */
 363                 cmx2xx_display = &generic_crt_640x480;
 364                 break;
 365         }
 366         return 1;
 367 }
 368
 369 /*
 370    This should be done really early to get proper configuration for
 371    frame buffer.
 372    Indeed, pxafb parameters can be used istead, but CM-X2XX bootloader
 373    has limitied line length for kernel command line, and also it will
 374    break compatibitlty with proprietary releases already in field.
 375 */
 376 __setup("monitor=", cmx2xx_set_display);
 377
 378 static void __init cmx2xx_init_display(void)
 379 {
 380         set_pxa_fb_info(cmx2xx_display);
 381 }
 382 #else
 383 static inline void cmx2xx_init_display(void) {}
 384 #endif
 385
 386 #ifdef CONFIG_PM
 387 static unsigned long sleep_save_msc[10];
 388
 389 static int cmx2xx_suspend(struct sys_device *dev, pm_message_t state)
 390 {
 391         cmx2xx_pci_suspend();
 392
 393         /* save MSC registers */
 394         sleep_save_msc[0] = MSC0;
 395         sleep_save_msc[1] = MSC1;
 396         sleep_save_msc[2] = MSC2;
 397
 398         /* setup power saving mode registers */
 399         PCFR = 0x0;
 400         PSLR = 0xff400000;
 401         PMCR  = 0x00000005;
 402         PWER  = 0x80000000;
 403         PFER  = 0x00000000;
 404         PRER  = 0x00000000;
 405         PGSR0 = 0xC0018800;
 406         PGSR1 = 0x004F0002;
 407         PGSR2 = 0x6021C000;
 408         PGSR3 = 0x00020000;
 409
 410         return 0;
 411 }
 412
 413 static int cmx2xx_resume(struct sys_device *dev)
 414 {
 415         cmx2xx_pci_resume();
 416
 417         /* restore MSC registers */
 418         MSC0 = sleep_save_msc[0];
 419         MSC1 = sleep_save_msc[1];
 420         MSC2 = sleep_save_msc[2];
 421
 422         return 0;
 423 }
 424
 425 static struct sysdev_class cmx2xx_pm_sysclass = {
 426         .name = "pm",
 427         .resume = cmx2xx_resume,
 428         .suspend = cmx2xx_suspend,
 429 };
 430
 431 static struct sys_device cmx2xx_pm_device = {
 432         .cls = &cmx2xx_pm_sysclass,
 433 };
 434
 435 static int __init cmx2xx_pm_init(void)
 436 {
 437         int error;
 438         error = sysdev_class_register(&cmx2xx_pm_sysclass);
 439         if (error == 0)
 440                 error = sysdev_register(&cmx2xx_pm_device);
 441         return error;
 442 }
 443 #else
 444 static int __init cmx2xx_pm_init(void) { return 0; }
 445 #endif
 446
 447 #if defined(CONFIG_SND_PXA2XX_AC97) || defined(CONFIG_SND_PXA2XX_AC97_MODULE)
 448 static void __init cmx2xx_init_ac97(void)
 449 {
 450         pxa_set_ac97_info(NULL);
 451 }
 452 #else
 453 static inline void cmx2xx_init_ac97(void) {}
 454 #endif
 455
 456 static void __init cmx2xx_init(void)
 457 {
 458         cmx2xx_pm_init();
 459
 460         if (cpu_is_pxa25x())
 461                 cmx255_init();
 462         else
 463                 cmx270_init();
 464
 465         cmx2xx_init_dm9000();
 466         cmx2xx_init_display();
 467         cmx2xx_init_ac97();
 468         cmx2xx_init_touchscreen();
 469         cmx2xx_init_leds();
 470 }
 471
 472 static void __init cmx2xx_init_irq(void)
 473 {
 474         pxa27x_init_irq();
 475
 476         if (cpu_is_pxa25x()) {
 477                 pxa25x_init_irq();
 478                 cmx2xx_pci_init_irq(CMX255_GPIO_IT8152_IRQ);
 479         } else {
 480                 pxa27x_init_irq();
 481                 cmx2xx_pci_init_irq(CMX270_GPIO_IT8152_IRQ);
 482         }
 483 }
 484
 485 #ifdef CONFIG_PCI
 486 /* Map PCI companion statically */
 487 static struct map_desc cmx2xx_io_desc[] __initdata = {
 488         [0] = { /* PCI bridge */
 489                 .virtual        = CMX2XX_IT8152_VIRT,
 490                 .pfn            = __phys_to_pfn(PXA_CS4_PHYS),
 491                 .length         = SZ_64M,
 492                 .type           = MT_DEVICE
 493         },
 494 };
 495
 496 static void __init cmx2xx_map_io(void)
 497 {
 498         pxa_map_io();
 499         iotable_init(cmx2xx_io_desc, ARRAY_SIZE(cmx2xx_io_desc));
 500
 501         it8152_base_address = CMX2XX_IT8152_VIRT;
 502 }
 503 #else
 504 static void __init cmx2xx_map_io(void)
 505 {
 506         pxa_map_io();
 507 }
 508 #endif
 509
 510 MACHINE_START(ARMCORE, "Compulab CM-X2XX")
 511         .boot_params    = 0xa0000100,
 512         .phys_io        = 0x40000000,
 513         .io_pg_offst    = (io_p2v(0x40000000) >> 18) & 0xfffc,
 514         .map_io         = cmx2xx_map_io,
 515         .init_irq       = cmx2xx_init_irq,
 516         .timer          = &pxa_timer,
 517         .init_machine   = cmx2xx_init,
 518 MACHINE_END