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/audio.h>
  26 #include <mach/pxafb.h>
  27 #include <mach/smemc.h>
  28
  29 #include <asm/hardware/it8152.h>
  30
  31 #include "generic.h"
  32 #include "cm-x2xx-pci.h"
  33
  34 extern void cmx255_init(void);
  35 extern void cmx270_init(void);
  36
  37 /* reserve IRQs for IT8152 */
  38 #define CMX2XX_NR_IRQS          (IRQ_BOARD_START + 40)
  39
  40 /* virtual addresses for statically mapped regions */
  41 #define CMX2XX_VIRT_BASE        (0xe8000000)
  42 #define CMX2XX_IT8152_VIRT      (CMX2XX_VIRT_BASE)
  43
  44 /* physical address if local-bus attached devices */
  45 #define CMX255_DM9000_PHYS_BASE (PXA_CS1_PHYS + (8 << 22))
  46 #define CMX270_DM9000_PHYS_BASE (PXA_CS1_PHYS + (6 << 22))
  47
  48 /* leds */
  49 #define CMX255_GPIO_RED         (27)
  50 #define CMX255_GPIO_GREEN       (32)
  51 #define CMX270_GPIO_RED         (93)
  52 #define CMX270_GPIO_GREEN       (94)
  53
  54 /* GPIO IRQ usage */
  55 #define GPIO22_ETHIRQ           (22)
  56 #define GPIO10_ETHIRQ           (10)
  57 #define CMX255_GPIO_IT8152_IRQ  (0)
  58 #define CMX270_GPIO_IT8152_IRQ  (22)
  59
  60 #define CMX255_ETHIRQ           IRQ_GPIO(GPIO22_ETHIRQ)
  61 #define CMX270_ETHIRQ           IRQ_GPIO(GPIO10_ETHIRQ)
  62
  63 #if defined(CONFIG_DM9000) || defined(CONFIG_DM9000_MODULE)
  64 static struct resource cmx255_dm9000_resource[] = {
  65         [0] = {
  66                 .start = CMX255_DM9000_PHYS_BASE,
  67                 .end   = CMX255_DM9000_PHYS_BASE + 3,
  68                 .flags = IORESOURCE_MEM,
  69         },
  70         [1] = {
  71                 .start = CMX255_DM9000_PHYS_BASE + 4,
  72                 .end   = CMX255_DM9000_PHYS_BASE + 4 + 500,
  73                 .flags = IORESOURCE_MEM,
  74         },
  75         [2] = {
  76                 .start = CMX255_ETHIRQ,
  77                 .end   = CMX255_ETHIRQ,
  78                 .flags = IORESOURCE_IRQ | IORESOURCE_IRQ_HIGHEDGE,
  79         }
  80 };
  81
  82 static struct resource cmx270_dm9000_resource[] = {
  83         [0] = {
  84                 .start = CMX270_DM9000_PHYS_BASE,
  85                 .end   = CMX270_DM9000_PHYS_BASE + 3,
  86                 .flags = IORESOURCE_MEM,
  87         },
  88         [1] = {
  89                 .start = CMX270_DM9000_PHYS_BASE + 8,
  90                 .end   = CMX270_DM9000_PHYS_BASE + 8 + 500,
  91                 .flags = IORESOURCE_MEM,
  92         },
  93         [2] = {
  94                 .start = CMX270_ETHIRQ,
  95                 .end   = CMX270_ETHIRQ,
  96                 .flags = IORESOURCE_IRQ | IORESOURCE_IRQ_HIGHEDGE,
  97         }
  98 };
  99
 100 static struct dm9000_plat_data cmx270_dm9000_platdata = {
 101         .flags          = DM9000_PLATF_32BITONLY | DM9000_PLATF_NO_EEPROM,
 102 };
 103
 104 static struct platform_device cmx2xx_dm9000_device = {
 105         .name           = "dm9000",
 106         .id             = 0,
 107         .num_resources  = ARRAY_SIZE(cmx270_dm9000_resource),
 108         .dev            = {
 109                 .platform_data = &cmx270_dm9000_platdata,
 110         }
 111 };
 112
 113 static void __init cmx2xx_init_dm9000(void)
 114 {
 115         if (cpu_is_pxa25x())
 116                 cmx2xx_dm9000_device.resource = cmx255_dm9000_resource;
 117         else
 118                 cmx2xx_dm9000_device.resource = cmx270_dm9000_resource;
 119         platform_device_register(&cmx2xx_dm9000_device);
 120 }
 121 #else
 122 static inline void cmx2xx_init_dm9000(void) {}
 123 #endif
 124
 125 /* UCB1400 touchscreen controller */
 126 #if defined(CONFIG_TOUCHSCREEN_UCB1400) || defined(CONFIG_TOUCHSCREEN_UCB1400_MODULE)
 127 static struct platform_device cmx2xx_ts_device = {
 128         .name           = "ucb1400_core",
 129         .id             = -1,
 130 };
 131
 132 static void __init cmx2xx_init_touchscreen(void)
 133 {
 134         platform_device_register(&cmx2xx_ts_device);
 135 }
 136 #else
 137 static inline void cmx2xx_init_touchscreen(void) {}
 138 #endif
 139
 140 /* CM-X270 LEDs */
 141 #if defined(CONFIG_LEDS_GPIO) || defined(CONFIG_LEDS_GPIO_MODULE)
 142 static struct gpio_led cmx2xx_leds[] = {
 143         [0] = {
 144                 .name = "cm-x2xx:red",
 145                 .default_trigger = "nand-disk",
 146                 .active_low = 1,
 147         },
 148         [1] = {
 149                 .name = "cm-x2xx:green",
 150                 .default_trigger = "heartbeat",
 151                 .active_low = 1,
 152         },
 153 };
 154
 155 static struct gpio_led_platform_data cmx2xx_gpio_led_pdata = {
 156         .num_leds = ARRAY_SIZE(cmx2xx_leds),
 157         .leds = cmx2xx_leds,
 158 };
 159
 160 static struct platform_device cmx2xx_led_device = {
 161         .name           = "leds-gpio",
 162         .id             = -1,
 163         .dev            = {
 164                 .platform_data = &cmx2xx_gpio_led_pdata,
 165         },
 166 };
 167
 168 static void __init cmx2xx_init_leds(void)
 169 {
 170         if (cpu_is_pxa25x()) {
 171                 cmx2xx_leds[0].gpio = CMX255_GPIO_RED;
 172                 cmx2xx_leds[1].gpio = CMX255_GPIO_GREEN;
 173         } else {
 174                 cmx2xx_leds[0].gpio = CMX270_GPIO_RED;
 175                 cmx2xx_leds[1].gpio = CMX270_GPIO_GREEN;
 176         }
 177         platform_device_register(&cmx2xx_led_device);
 178 }
 179 #else
 180 static inline void cmx2xx_init_leds(void) {}
 181 #endif
 182
 183 #if defined(CONFIG_FB_PXA) || defined(CONFIG_FB_PXA_MODULE)
 184 /*
 185   Display definitions
 186   keep these for backwards compatibility, although symbolic names (as
 187   e.g. in lpd270.c) looks better
 188 */
 189 #define MTYPE_STN320x240        0
 190 #define MTYPE_TFT640x480        1
 191 #define MTYPE_CRT640x480        2
 192 #define MTYPE_CRT800x600        3
 193 #define MTYPE_TFT320x240        6
 194 #define MTYPE_STN640x480        7
 195
 196 static struct pxafb_mode_info generic_stn_320x240_mode = {
 197         .pixclock       = 76923,
 198         .bpp            = 8,
 199         .xres           = 320,
 200         .yres           = 240,
 201         .hsync_len      = 3,
 202         .vsync_len      = 2,
 203         .left_margin    = 3,
 204         .upper_margin   = 0,
 205         .right_margin   = 3,
 206         .lower_margin   = 0,
 207         .sync           = (FB_SYNC_HOR_HIGH_ACT |
 208                            FB_SYNC_VERT_HIGH_ACT),
 209         .cmap_greyscale = 0,
 210 };
 211
 212 static struct pxafb_mach_info generic_stn_320x240 = {
 213         .modes          = &generic_stn_320x240_mode,
 214         .num_modes      = 1,
 215         .lcd_conn       = LCD_COLOR_STN_8BPP | LCD_PCLK_EDGE_FALL |\
 216                           LCD_AC_BIAS_FREQ(0xff),
 217         .cmap_inverse   = 0,
 218         .cmap_static    = 0,
 219 };
 220
 221 static struct pxafb_mode_info generic_tft_640x480_mode = {
 222         .pixclock       = 38461,
 223         .bpp            = 8,
 224         .xres           = 640,
 225         .yres           = 480,
 226         .hsync_len      = 60,
 227         .vsync_len      = 2,
 228         .left_margin    = 70,
 229         .upper_margin   = 10,
 230         .right_margin   = 70,
 231         .lower_margin   = 5,
 232         .sync           = 0,
 233         .cmap_greyscale = 0,
 234 };
 235
 236 static struct pxafb_mach_info generic_tft_640x480 = {
 237         .modes          = &generic_tft_640x480_mode,
 238         .num_modes      = 1,
 239         .lcd_conn       = LCD_COLOR_TFT_8BPP | LCD_PCLK_EDGE_FALL |\
 240                           LCD_AC_BIAS_FREQ(0xff),
 241         .cmap_inverse   = 0,
 242         .cmap_static    = 0,
 243 };
 244
 245 static struct pxafb_mode_info generic_crt_640x480_mode = {
 246         .pixclock       = 38461,
 247         .bpp            = 8,
 248         .xres           = 640,
 249         .yres           = 480,
 250         .hsync_len      = 63,
 251         .vsync_len      = 2,
 252         .left_margin    = 81,
 253         .upper_margin   = 33,
 254         .right_margin   = 16,
 255         .lower_margin   = 10,
 256         .sync           = (FB_SYNC_HOR_HIGH_ACT |
 257                            FB_SYNC_VERT_HIGH_ACT),
 258         .cmap_greyscale = 0,
 259 };
 260
 261 static struct pxafb_mach_info generic_crt_640x480 = {
 262         .modes          = &generic_crt_640x480_mode,
 263         .num_modes      = 1,
 264         .lcd_conn       = LCD_COLOR_TFT_8BPP | LCD_AC_BIAS_FREQ(0xff),
 265         .cmap_inverse   = 0,
 266         .cmap_static    = 0,
 267 };
 268
 269 static struct pxafb_mode_info generic_crt_800x600_mode = {
 270         .pixclock       = 28846,
 271         .bpp            = 8,
 272         .xres           = 800,
 273         .yres           = 600,
 274         .hsync_len      = 63,
 275         .vsync_len      = 2,
 276         .left_margin    = 26,
 277         .upper_margin   = 21,
 278         .right_margin   = 26,
 279         .lower_margin   = 11,
 280         .sync           = (FB_SYNC_HOR_HIGH_ACT |
 281                            FB_SYNC_VERT_HIGH_ACT),
 282         .cmap_greyscale = 0,
 283 };
 284
 285 static struct pxafb_mach_info generic_crt_800x600 = {
 286         .modes          = &generic_crt_800x600_mode,
 287         .num_modes      = 1,
 288         .lcd_conn       = LCD_COLOR_TFT_8BPP | LCD_AC_BIAS_FREQ(0xff),
 289         .cmap_inverse   = 0,
 290         .cmap_static    = 0,
 291 };
 292
 293 static struct pxafb_mode_info generic_tft_320x240_mode = {
 294         .pixclock       = 134615,
 295         .bpp            = 16,
 296         .xres           = 320,
 297         .yres           = 240,
 298         .hsync_len      = 63,
 299         .vsync_len      = 7,
 300         .left_margin    = 75,
 301         .upper_margin   = 0,
 302         .right_margin   = 15,
 303         .lower_margin   = 15,
 304         .sync           = 0,
 305         .cmap_greyscale = 0,
 306 };
 307
 308 static struct pxafb_mach_info generic_tft_320x240 = {
 309         .modes          = &generic_tft_320x240_mode,
 310         .num_modes      = 1,
 311         .lcd_conn       = LCD_COLOR_TFT_16BPP | LCD_AC_BIAS_FREQ(0xff),
 312         .cmap_inverse   = 0,
 313         .cmap_static    = 0,
 314 };
 315
 316 static struct pxafb_mode_info generic_stn_640x480_mode = {
 317         .pixclock       = 57692,
 318         .bpp            = 8,
 319         .xres           = 640,
 320         .yres           = 480,
 321         .hsync_len      = 4,
 322         .vsync_len      = 2,
 323         .left_margin    = 10,
 324         .upper_margin   = 5,
 325         .right_margin   = 10,
 326         .lower_margin   = 5,
 327         .sync           = (FB_SYNC_HOR_HIGH_ACT |
 328                            FB_SYNC_VERT_HIGH_ACT),
 329         .cmap_greyscale = 0,
 330 };
 331
 332 static struct pxafb_mach_info generic_stn_640x480 = {
 333         .modes          = &generic_stn_640x480_mode,
 334         .num_modes      = 1,
 335         .lcd_conn       = LCD_COLOR_STN_8BPP | LCD_AC_BIAS_FREQ(0xff),
 336         .cmap_inverse   = 0,
 337         .cmap_static    = 0,
 338 };
 339
 340 static struct pxafb_mach_info *cmx2xx_display = &generic_crt_640x480;
 341
 342 static int __init cmx2xx_set_display(char *str)
 343 {
 344         int disp_type = simple_strtol(str, NULL, 0);
 345         switch (disp_type) {
 346         case MTYPE_STN320x240:
 347                 cmx2xx_display = &generic_stn_320x240;
 348                 break;
 349         case MTYPE_TFT640x480:
 350                 cmx2xx_display = &generic_tft_640x480;
 351                 break;
 352         case MTYPE_CRT640x480:
 353                 cmx2xx_display = &generic_crt_640x480;
 354                 break;
 355         case MTYPE_CRT800x600:
 356                 cmx2xx_display = &generic_crt_800x600;
 357                 break;
 358         case MTYPE_TFT320x240:
 359                 cmx2xx_display = &generic_tft_320x240;
 360                 break;
 361         case MTYPE_STN640x480:
 362                 cmx2xx_display = &generic_stn_640x480;
 363                 break;
 364         default: /* fallback to CRT 640x480 */
 365                 cmx2xx_display = &generic_crt_640x480;
 366                 break;
 367         }
 368         return 1;
 369 }
 370
 371 /*
 372    This should be done really early to get proper configuration for
 373    frame buffer.
 374    Indeed, pxafb parameters can be used istead, but CM-X2XX bootloader
 375    has limitied line length for kernel command line, and also it will
 376    break compatibitlty with proprietary releases already in field.
 377 */
 378 __setup("monitor=", cmx2xx_set_display);
 379
 380 static void __init cmx2xx_init_display(void)
 381 {
 382         set_pxa_fb_info(cmx2xx_display);
 383 }
 384 #else
 385 static inline void cmx2xx_init_display(void) {}
 386 #endif
 387
 388 #ifdef CONFIG_PM
 389 static unsigned long sleep_save_msc[10];
 390
 391 static int cmx2xx_suspend(struct sys_device *dev, pm_message_t state)
 392 {
 393         cmx2xx_pci_suspend();
 394
 395         /* save MSC registers */
 396         sleep_save_msc[0] = __raw_readl(MSC0);
 397         sleep_save_msc[1] = __raw_readl(MSC1);
 398         sleep_save_msc[2] = __raw_readl(MSC2);
 399
 400         /* setup power saving mode registers */
 401         PCFR = 0x0;
 402         PSLR = 0xff400000;
 403         PMCR  = 0x00000005;
 404         PWER  = 0x80000000;
 405         PFER  = 0x00000000;
 406         PRER  = 0x00000000;
 407         PGSR0 = 0xC0018800;
 408         PGSR1 = 0x004F0002;
 409         PGSR2 = 0x6021C000;
 410         PGSR3 = 0x00020000;
 411
 412         return 0;
 413 }
 414
 415 static int cmx2xx_resume(struct sys_device *dev)
 416 {
 417         cmx2xx_pci_resume();
 418
 419         /* restore MSC registers */
 420         __raw_writel(sleep_save_msc[0], MSC0);
 421         __raw_writel(sleep_save_msc[1], MSC1);
 422         __raw_writel(sleep_save_msc[2], MSC2);
 423
 424         return 0;
 425 }
 426
 427 static struct sysdev_class cmx2xx_pm_sysclass = {
 428         .name = "pm",
 429         .resume = cmx2xx_resume,
 430         .suspend = cmx2xx_suspend,
 431 };
 432
 433 static struct sys_device cmx2xx_pm_device = {
 434         .cls = &cmx2xx_pm_sysclass,
 435 };
 436
 437 static int __init cmx2xx_pm_init(void)
 438 {
 439         int error;
 440         error = sysdev_class_register(&cmx2xx_pm_sysclass);
 441         if (error == 0)
 442                 error = sysdev_register(&cmx2xx_pm_device);
 443         return error;
 444 }
 445 #else
 446 static int __init cmx2xx_pm_init(void) { return 0; }
 447 #endif
 448
 449 #if defined(CONFIG_SND_PXA2XX_AC97) || defined(CONFIG_SND_PXA2XX_AC97_MODULE)
 450 static void __init cmx2xx_init_ac97(void)
 451 {
 452         pxa_set_ac97_info(NULL);
 453 }
 454 #else
 455 static inline void cmx2xx_init_ac97(void) {}
 456 #endif
 457
 458 static void __init cmx2xx_init(void)
 459 {
 460         pxa_set_ffuart_info(NULL);
 461         pxa_set_btuart_info(NULL);
 462         pxa_set_stuart_info(NULL);
 463
 464         cmx2xx_pm_init();
 465
 466         if (cpu_is_pxa25x())
 467                 cmx255_init();
 468         else
 469                 cmx270_init();
 470
 471         cmx2xx_init_dm9000();
 472         cmx2xx_init_display();
 473         cmx2xx_init_ac97();
 474         cmx2xx_init_touchscreen();
 475         cmx2xx_init_leds();
 476 }
 477
 478 static void __init cmx2xx_init_irq(void)
 479 {
 480         if (cpu_is_pxa25x()) {
 481                 pxa25x_init_irq();
 482                 cmx2xx_pci_init_irq(CMX255_GPIO_IT8152_IRQ);
 483         } else {
 484                 pxa27x_init_irq();
 485                 cmx2xx_pci_init_irq(CMX270_GPIO_IT8152_IRQ);
 486         }
 487 }
 488
 489 #ifdef CONFIG_PCI
 490 /* Map PCI companion statically */
 491 static struct map_desc cmx2xx_io_desc[] __initdata = {
 492         [0] = { /* PCI bridge */
 493                 .virtual        = CMX2XX_IT8152_VIRT,
 494                 .pfn            = __phys_to_pfn(PXA_CS4_PHYS),
 495                 .length         = SZ_64M,
 496                 .type           = MT_DEVICE
 497         },
 498 };
 499
 500 static void __init cmx2xx_map_io(void)
 501 {
 502         if (cpu_is_pxa25x())
 503                 pxa25x_map_io();
 504
 505         if (cpu_is_pxa27x())
 506                 pxa27x_map_io();
 507
 508         iotable_init(cmx2xx_io_desc, ARRAY_SIZE(cmx2xx_io_desc));
 509
 510         it8152_base_address = CMX2XX_IT8152_VIRT;
 511 }
 512 #else
 513 static void __init cmx2xx_map_io(void)
 514 {
 515         if (cpu_is_pxa25x())
 516                 pxa25x_map_io();
 517
 518         if (cpu_is_pxa27x())
 519                 pxa27x_map_io();
 520 }
 521 #endif
 522
 523 MACHINE_START(ARMCORE, "Compulab CM-X2XX")
 524         .boot_params    = 0xa0000100,
 525         .map_io         = cmx2xx_map_io,
 526         .nr_irqs        = CMX2XX_NR_IRQS,
 527         .init_irq       = cmx2xx_init_irq,
 528         .timer          = &pxa_timer,
 529         .init_machine   = cmx2xx_init,
 530 MACHINE_END