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