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/syscore_ops.h>
  14 #include <linux/irq.h>
  15 #include <linux/gpio.h>
  16 #include <linux/regulator/machine.h>
  17
  18 #include <linux/dm9000.h>
  19 #include <linux/leds.h>
  20
  21 #include <asm/mach/arch.h>
  22 #include <asm/mach-types.h>
  23 #include <asm/mach/map.h>
  24
  25 #include "pxa25x.h"
  26 #undef GPIO24_SSP1_SFRM
  27 #undef GPIO86_GPIO
  28 #undef GPIO87_GPIO
  29 #undef GPIO88_GPIO
  30 #undef GPIO89_GPIO
  31 #include "pxa27x.h"
  32 #undef GPIO24_SSP1_SFRM
  33 #undef GPIO86_GPIO
  34 #undef GPIO87_GPIO
  35 #undef GPIO88_GPIO
  36 #undef GPIO89_GPIO
  37 #include <mach/audio.h>
  38 #include <linux/platform_data/video-pxafb.h>
  39 #include <mach/smemc.h>
  40
  41 #include <asm/hardware/it8152.h>
  42
  43 #include "generic.h"
  44 #include "cm-x2xx-pci.h"
  45
  46 extern void cmx255_init(void);
  47 extern void cmx270_init(void);
  48
  49 /* reserve IRQs for IT8152 */
  50 #define CMX2XX_NR_IRQS          (IRQ_BOARD_START + 40)
  51
  52 /* virtual addresses for statically mapped regions */
  53 #define CMX2XX_VIRT_BASE        (void __iomem *)(0xe8000000)
  54 #define CMX2XX_IT8152_VIRT      (CMX2XX_VIRT_BASE)
  55
  56 /* physical address if local-bus attached devices */
  57 #define CMX255_DM9000_PHYS_BASE (PXA_CS1_PHYS + (8 << 22))
  58 #define CMX270_DM9000_PHYS_BASE (PXA_CS1_PHYS + (6 << 22))
  59
  60 /* leds */
  61 #define CMX255_GPIO_RED         (27)
  62 #define CMX255_GPIO_GREEN       (32)
  63 #define CMX270_GPIO_RED         (93)
  64 #define CMX270_GPIO_GREEN       (94)
  65
  66 /* GPIO IRQ usage */
  67 #define GPIO22_ETHIRQ           (22)
  68 #define GPIO10_ETHIRQ           (10)
  69 #define CMX255_GPIO_IT8152_IRQ  (0)
  70 #define CMX270_GPIO_IT8152_IRQ  (22)
  71
  72 #define CMX255_ETHIRQ           PXA_GPIO_TO_IRQ(GPIO22_ETHIRQ)
  73 #define CMX270_ETHIRQ           PXA_GPIO_TO_IRQ(GPIO10_ETHIRQ)
  74
  75 #if defined(CONFIG_DM9000) || defined(CONFIG_DM9000_MODULE)
  76 static struct resource cmx255_dm9000_resource[] = {
  77         [0] = {
  78                 .start = CMX255_DM9000_PHYS_BASE,
  79                 .end   = CMX255_DM9000_PHYS_BASE + 3,
  80                 .flags = IORESOURCE_MEM,
  81         },
  82         [1] = {
  83                 .start = CMX255_DM9000_PHYS_BASE + 4,
  84                 .end   = CMX255_DM9000_PHYS_BASE + 4 + 500,
  85                 .flags = IORESOURCE_MEM,
  86         },
  87         [2] = {
  88                 .start = CMX255_ETHIRQ,
  89                 .end   = CMX255_ETHIRQ,
  90                 .flags = IORESOURCE_IRQ | IORESOURCE_IRQ_HIGHEDGE,
  91         }
  92 };
  93
  94 static struct resource cmx270_dm9000_resource[] = {
  95         [0] = {
  96                 .start = CMX270_DM9000_PHYS_BASE,
  97                 .end   = CMX270_DM9000_PHYS_BASE + 3,
  98                 .flags = IORESOURCE_MEM,
  99         },
 100         [1] = {
 101                 .start = CMX270_DM9000_PHYS_BASE + 8,
 102                 .end   = CMX270_DM9000_PHYS_BASE + 8 + 500,
 103                 .flags = IORESOURCE_MEM,
 104         },
 105         [2] = {
 106                 .start = CMX270_ETHIRQ,
 107                 .end   = CMX270_ETHIRQ,
 108                 .flags = IORESOURCE_IRQ | IORESOURCE_IRQ_HIGHEDGE,
 109         }
 110 };
 111
 112 static struct dm9000_plat_data cmx270_dm9000_platdata = {
 113         .flags          = DM9000_PLATF_32BITONLY | DM9000_PLATF_NO_EEPROM,
 114 };
 115
 116 static struct platform_device cmx2xx_dm9000_device = {
 117         .name           = "dm9000",
 118         .id             = 0,
 119         .num_resources  = ARRAY_SIZE(cmx270_dm9000_resource),
 120         .dev            = {
 121                 .platform_data = &cmx270_dm9000_platdata,
 122         }
 123 };
 124
 125 static void __init cmx2xx_init_dm9000(void)
 126 {
 127         if (cpu_is_pxa25x())
 128                 cmx2xx_dm9000_device.resource = cmx255_dm9000_resource;
 129         else
 130                 cmx2xx_dm9000_device.resource = cmx270_dm9000_resource;
 131         platform_device_register(&cmx2xx_dm9000_device);
 132 }
 133 #else
 134 static inline void cmx2xx_init_dm9000(void) {}
 135 #endif
 136
 137 /* UCB1400 touchscreen controller */
 138 #if defined(CONFIG_TOUCHSCREEN_UCB1400) || defined(CONFIG_TOUCHSCREEN_UCB1400_MODULE)
 139 static struct platform_device cmx2xx_ts_device = {
 140         .name           = "ucb1400_core",
 141         .id             = -1,
 142 };
 143
 144 static void __init cmx2xx_init_touchscreen(void)
 145 {
 146         platform_device_register(&cmx2xx_ts_device);
 147 }
 148 #else
 149 static inline void cmx2xx_init_touchscreen(void) {}
 150 #endif
 151
 152 /* CM-X270 LEDs */
 153 #if defined(CONFIG_LEDS_GPIO) || defined(CONFIG_LEDS_GPIO_MODULE)
 154 static struct gpio_led cmx2xx_leds[] = {
 155         [0] = {
 156                 .name = "cm-x2xx:red",
 157                 .default_trigger = "nand-disk",
 158                 .active_low = 1,
 159         },
 160         [1] = {
 161                 .name = "cm-x2xx:green",
 162                 .default_trigger = "heartbeat",
 163                 .active_low = 1,
 164         },
 165 };
 166
 167 static struct gpio_led_platform_data cmx2xx_gpio_led_pdata = {
 168         .num_leds = ARRAY_SIZE(cmx2xx_leds),
 169         .leds = cmx2xx_leds,
 170 };
 171
 172 static struct platform_device cmx2xx_led_device = {
 173         .name           = "leds-gpio",
 174         .id             = -1,
 175         .dev            = {
 176                 .platform_data = &cmx2xx_gpio_led_pdata,
 177         },
 178 };
 179
 180 static void __init cmx2xx_init_leds(void)
 181 {
 182         if (cpu_is_pxa25x()) {
 183                 cmx2xx_leds[0].gpio = CMX255_GPIO_RED;
 184                 cmx2xx_leds[1].gpio = CMX255_GPIO_GREEN;
 185         } else {
 186                 cmx2xx_leds[0].gpio = CMX270_GPIO_RED;
 187                 cmx2xx_leds[1].gpio = CMX270_GPIO_GREEN;
 188         }
 189         platform_device_register(&cmx2xx_led_device);
 190 }
 191 #else
 192 static inline void cmx2xx_init_leds(void) {}
 193 #endif
 194
 195 #if defined(CONFIG_FB_PXA) || defined(CONFIG_FB_PXA_MODULE)
 196 /*
 197   Display definitions
 198   keep these for backwards compatibility, although symbolic names (as
 199   e.g. in lpd270.c) looks better
 200 */
 201 #define MTYPE_STN320x240        0
 202 #define MTYPE_TFT640x480        1
 203 #define MTYPE_CRT640x480        2
 204 #define MTYPE_CRT800x600        3
 205 #define MTYPE_TFT320x240        6
 206 #define MTYPE_STN640x480        7
 207
 208 static struct pxafb_mode_info generic_stn_320x240_mode = {
 209         .pixclock       = 76923,
 210         .bpp            = 8,
 211         .xres           = 320,
 212         .yres           = 240,
 213         .hsync_len      = 3,
 214         .vsync_len      = 2,
 215         .left_margin    = 3,
 216         .upper_margin   = 0,
 217         .right_margin   = 3,
 218         .lower_margin   = 0,
 219         .sync           = (FB_SYNC_HOR_HIGH_ACT |
 220                            FB_SYNC_VERT_HIGH_ACT),
 221         .cmap_greyscale = 0,
 222 };
 223
 224 static struct pxafb_mach_info generic_stn_320x240 = {
 225         .modes          = &generic_stn_320x240_mode,
 226         .num_modes      = 1,
 227         .lcd_conn       = LCD_COLOR_STN_8BPP | LCD_PCLK_EDGE_FALL |\
 228                           LCD_AC_BIAS_FREQ(0xff),
 229         .cmap_inverse   = 0,
 230         .cmap_static    = 0,
 231 };
 232
 233 static struct pxafb_mode_info generic_tft_640x480_mode = {
 234         .pixclock       = 38461,
 235         .bpp            = 8,
 236         .xres           = 640,
 237         .yres           = 480,
 238         .hsync_len      = 60,
 239         .vsync_len      = 2,
 240         .left_margin    = 70,
 241         .upper_margin   = 10,
 242         .right_margin   = 70,
 243         .lower_margin   = 5,
 244         .sync           = 0,
 245         .cmap_greyscale = 0,
 246 };
 247
 248 static struct pxafb_mach_info generic_tft_640x480 = {
 249         .modes          = &generic_tft_640x480_mode,
 250         .num_modes      = 1,
 251         .lcd_conn       = LCD_COLOR_TFT_8BPP | LCD_PCLK_EDGE_FALL |\
 252                           LCD_AC_BIAS_FREQ(0xff),
 253         .cmap_inverse   = 0,
 254         .cmap_static    = 0,
 255 };
 256
 257 static struct pxafb_mode_info generic_crt_640x480_mode = {
 258         .pixclock       = 38461,
 259         .bpp            = 8,
 260         .xres           = 640,
 261         .yres           = 480,
 262         .hsync_len      = 63,
 263         .vsync_len      = 2,
 264         .left_margin    = 81,
 265         .upper_margin   = 33,
 266         .right_margin   = 16,
 267         .lower_margin   = 10,
 268         .sync           = (FB_SYNC_HOR_HIGH_ACT |
 269                            FB_SYNC_VERT_HIGH_ACT),
 270         .cmap_greyscale = 0,
 271 };
 272
 273 static struct pxafb_mach_info generic_crt_640x480 = {
 274         .modes          = &generic_crt_640x480_mode,
 275         .num_modes      = 1,
 276         .lcd_conn       = LCD_COLOR_TFT_8BPP | LCD_AC_BIAS_FREQ(0xff),
 277         .cmap_inverse   = 0,
 278         .cmap_static    = 0,
 279 };
 280
 281 static struct pxafb_mode_info generic_crt_800x600_mode = {
 282         .pixclock       = 28846,
 283         .bpp            = 8,
 284         .xres           = 800,
 285         .yres           = 600,
 286         .hsync_len      = 63,
 287         .vsync_len      = 2,
 288         .left_margin    = 26,
 289         .upper_margin   = 21,
 290         .right_margin   = 26,
 291         .lower_margin   = 11,
 292         .sync           = (FB_SYNC_HOR_HIGH_ACT |
 293                            FB_SYNC_VERT_HIGH_ACT),
 294         .cmap_greyscale = 0,
 295 };
 296
 297 static struct pxafb_mach_info generic_crt_800x600 = {
 298         .modes          = &generic_crt_800x600_mode,
 299         .num_modes      = 1,
 300         .lcd_conn       = LCD_COLOR_TFT_8BPP | LCD_AC_BIAS_FREQ(0xff),
 301         .cmap_inverse   = 0,
 302         .cmap_static    = 0,
 303 };
 304
 305 static struct pxafb_mode_info generic_tft_320x240_mode = {
 306         .pixclock       = 134615,
 307         .bpp            = 16,
 308         .xres           = 320,
 309         .yres           = 240,
 310         .hsync_len      = 63,
 311         .vsync_len      = 7,
 312         .left_margin    = 75,
 313         .upper_margin   = 0,
 314         .right_margin   = 15,
 315         .lower_margin   = 15,
 316         .sync           = 0,
 317         .cmap_greyscale = 0,
 318 };
 319
 320 static struct pxafb_mach_info generic_tft_320x240 = {
 321         .modes          = &generic_tft_320x240_mode,
 322         .num_modes      = 1,
 323         .lcd_conn       = LCD_COLOR_TFT_16BPP | LCD_AC_BIAS_FREQ(0xff),
 324         .cmap_inverse   = 0,
 325         .cmap_static    = 0,
 326 };
 327
 328 static struct pxafb_mode_info generic_stn_640x480_mode = {
 329         .pixclock       = 57692,
 330         .bpp            = 8,
 331         .xres           = 640,
 332         .yres           = 480,
 333         .hsync_len      = 4,
 334         .vsync_len      = 2,
 335         .left_margin    = 10,
 336         .upper_margin   = 5,
 337         .right_margin   = 10,
 338         .lower_margin   = 5,
 339         .sync           = (FB_SYNC_HOR_HIGH_ACT |
 340                            FB_SYNC_VERT_HIGH_ACT),
 341         .cmap_greyscale = 0,
 342 };
 343
 344 static struct pxafb_mach_info generic_stn_640x480 = {
 345         .modes          = &generic_stn_640x480_mode,
 346         .num_modes      = 1,
 347         .lcd_conn       = LCD_COLOR_STN_8BPP | LCD_AC_BIAS_FREQ(0xff),
 348         .cmap_inverse   = 0,
 349         .cmap_static    = 0,
 350 };
 351
 352 static struct pxafb_mach_info *cmx2xx_display = &generic_crt_640x480;
 353
 354 static int __init cmx2xx_set_display(char *str)
 355 {
 356         int disp_type = simple_strtol(str, NULL, 0);
 357         switch (disp_type) {
 358         case MTYPE_STN320x240:
 359                 cmx2xx_display = &generic_stn_320x240;
 360                 break;
 361         case MTYPE_TFT640x480:
 362                 cmx2xx_display = &generic_tft_640x480;
 363                 break;
 364         case MTYPE_CRT640x480:
 365                 cmx2xx_display = &generic_crt_640x480;
 366                 break;
 367         case MTYPE_CRT800x600:
 368                 cmx2xx_display = &generic_crt_800x600;
 369                 break;
 370         case MTYPE_TFT320x240:
 371                 cmx2xx_display = &generic_tft_320x240;
 372                 break;
 373         case MTYPE_STN640x480:
 374                 cmx2xx_display = &generic_stn_640x480;
 375                 break;
 376         default: /* fallback to CRT 640x480 */
 377                 cmx2xx_display = &generic_crt_640x480;
 378                 break;
 379         }
 380         return 1;
 381 }
 382
 383 /*
 384    This should be done really early to get proper configuration for
 385    frame buffer.
 386    Indeed, pxafb parameters can be used istead, but CM-X2XX bootloader
 387    has limitied line length for kernel command line, and also it will
 388    break compatibitlty with proprietary releases already in field.
 389 */
 390 __setup("monitor=", cmx2xx_set_display);
 391
 392 static void __init cmx2xx_init_display(void)
 393 {
 394         pxa_set_fb_info(NULL, cmx2xx_display);
 395 }
 396 #else
 397 static inline void cmx2xx_init_display(void) {}
 398 #endif
 399
 400 #ifdef CONFIG_PM
 401 static unsigned long sleep_save_msc[10];
 402
 403 static int cmx2xx_suspend(void)
 404 {
 405         cmx2xx_pci_suspend();
 406
 407         /* save MSC registers */
 408         sleep_save_msc[0] = __raw_readl(MSC0);
 409         sleep_save_msc[1] = __raw_readl(MSC1);
 410         sleep_save_msc[2] = __raw_readl(MSC2);
 411
 412         /* setup power saving mode registers */
 413         PCFR = 0x0;
 414         PSLR = 0xff400000;
 415         PMCR  = 0x00000005;
 416         PWER  = 0x80000000;
 417         PFER  = 0x00000000;
 418         PRER  = 0x00000000;
 419         PGSR0 = 0xC0018800;
 420         PGSR1 = 0x004F0002;
 421         PGSR2 = 0x6021C000;
 422         PGSR3 = 0x00020000;
 423
 424         return 0;
 425 }
 426
 427 static void cmx2xx_resume(void)
 428 {
 429         cmx2xx_pci_resume();
 430
 431         /* restore MSC registers */
 432         __raw_writel(sleep_save_msc[0], MSC0);
 433         __raw_writel(sleep_save_msc[1], MSC1);
 434         __raw_writel(sleep_save_msc[2], MSC2);
 435 }
 436
 437 static struct syscore_ops cmx2xx_pm_syscore_ops = {
 438         .resume = cmx2xx_resume,
 439         .suspend = cmx2xx_suspend,
 440 };
 441
 442 static int __init cmx2xx_pm_init(void)
 443 {
 444         register_syscore_ops(&cmx2xx_pm_syscore_ops);
 445
 446         return 0;
 447 }
 448 #else
 449 static int __init cmx2xx_pm_init(void) { return 0; }
 450 #endif
 451
 452 #if defined(CONFIG_SND_PXA2XX_AC97) || defined(CONFIG_SND_PXA2XX_AC97_MODULE)
 453 static void __init cmx2xx_init_ac97(void)
 454 {
 455         pxa_set_ac97_info(NULL);
 456 }
 457 #else
 458 static inline void cmx2xx_init_ac97(void) {}
 459 #endif
 460
 461 static void __init cmx2xx_init(void)
 462 {
 463         pxa_set_ffuart_info(NULL);
 464         pxa_set_btuart_info(NULL);
 465         pxa_set_stuart_info(NULL);
 466
 467         cmx2xx_pm_init();
 468
 469         if (cpu_is_pxa25x())
 470                 cmx255_init();
 471         else
 472                 cmx270_init();
 473
 474         cmx2xx_init_dm9000();
 475         cmx2xx_init_display();
 476         cmx2xx_init_ac97();
 477         cmx2xx_init_touchscreen();
 478         cmx2xx_init_leds();
 479
 480         regulator_has_full_constraints();
 481 }
 482
 483 static void __init cmx2xx_init_irq(void)
 484 {
 485         if (cpu_is_pxa25x()) {
 486                 pxa25x_init_irq();
 487                 cmx2xx_pci_init_irq(CMX255_GPIO_IT8152_IRQ);
 488         } else {
 489                 pxa27x_init_irq();
 490                 cmx2xx_pci_init_irq(CMX270_GPIO_IT8152_IRQ);
 491         }
 492 }
 493
 494 #ifdef CONFIG_PCI
 495 /* Map PCI companion statically */
 496 static struct map_desc cmx2xx_io_desc[] __initdata = {
 497         [0] = { /* PCI bridge */
 498                 .virtual        = (unsigned long)CMX2XX_IT8152_VIRT,
 499                 .pfn            = __phys_to_pfn(PXA_CS4_PHYS),
 500                 .length         = SZ_64M,
 501                 .type           = MT_DEVICE
 502         },
 503 };
 504
 505 static void __init cmx2xx_map_io(void)
 506 {
 507         if (cpu_is_pxa25x())
 508                 pxa25x_map_io();
 509
 510         if (cpu_is_pxa27x())
 511                 pxa27x_map_io();
 512
 513         iotable_init(cmx2xx_io_desc, ARRAY_SIZE(cmx2xx_io_desc));
 514
 515         it8152_base_address = CMX2XX_IT8152_VIRT;
 516 }
 517 #else
 518 static void __init cmx2xx_map_io(void)
 519 {
 520         if (cpu_is_pxa25x())
 521                 pxa25x_map_io();
 522
 523         if (cpu_is_pxa27x())
 524                 pxa27x_map_io();
 525 }
 526 #endif
 527
 528 MACHINE_START(ARMCORE, "Compulab CM-X2XX")
 529         .atag_offset    = 0x100,
 530         .map_io         = cmx2xx_map_io,
 531         .nr_irqs        = CMX2XX_NR_IRQS,
 532         .init_irq       = cmx2xx_init_irq,
 533         /* NOTE: pxa25x_handle_irq() works on PXA27x w/o camera support */
 534         .handle_irq     = pxa25x_handle_irq,
 535         .init_time      = pxa_timer_init,
 536         .init_machine   = cmx2xx_init,
 537 #ifdef CONFIG_PCI
 538         .dma_zone_size  = SZ_64M,
 539 #endif
 540         .restart        = pxa_restart,
 541 MACHINE_END