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