arch/arm/mach-pxa/lpd270.c

   1 /*
   2  * linux/arch/arm/mach-pxa/lpd270.c
   3  *
   4  * Support for the LogicPD PXA270 Card Engine.
   5  * Derived from the mainstone code, which carries these notices:
   6  *
   7  * Author:      Nicolas Pitre
   8  * Created:     Nov 05, 2002
   9  * Copyright:   MontaVista Software Inc.
  10  *
  11  * This program is free software; you can redistribute it and/or modify
  12  * it under the terms of the GNU General Public License version 2 as
  13  * published by the Free Software Foundation.
  14  */
  15 #include <linux/gpio.h>
  16 #include <linux/init.h>
  17 #include <linux/platform_device.h>
  18 #include <linux/syscore_ops.h>
  19 #include <linux/interrupt.h>
  20 #include <linux/sched.h>
  21 #include <linux/bitops.h>
  22 #include <linux/fb.h>
  23 #include <linux/ioport.h>
  24 #include <linux/mtd/mtd.h>
  25 #include <linux/mtd/partitions.h>
  26 #include <linux/pwm_backlight.h>
  27 #include <linux/smc91x.h>
  28
  29 #include <asm/types.h>
  30 #include <asm/setup.h>
  31 #include <asm/memory.h>
  32 #include <asm/mach-types.h>
  33 #include <mach/hardware.h>
  34 #include <asm/irq.h>
  35 #include <asm/sizes.h>
  36
  37 #include <asm/mach/arch.h>
  38 #include <asm/mach/map.h>
  39 #include <asm/mach/irq.h>
  40 #include <asm/mach/flash.h>
  41
  42 #include <mach/pxa27x.h>
  43 #include <mach/lpd270.h>
  44 #include <mach/audio.h>
  45 #include <linux/platform_data/video-pxafb.h>
  46 #include <linux/platform_data/mmc-pxamci.h>
  47 #include <linux/platform_data/irda-pxaficp.h>
  48 #include <linux/platform_data/usb-ohci-pxa27x.h>
  49 #include <mach/smemc.h>
  50
  51 #include "generic.h"
  52 #include "devices.h"
  53
  54 static unsigned long lpd270_pin_config[] __initdata = {
  55         /* Chip Selects */
  56         GPIO15_nCS_1,   /* Mainboard Flash */
  57         GPIO78_nCS_2,   /* CPLD + Ethernet */
  58
  59         /* LCD - 16bpp Active TFT */
  60         GPIO58_LCD_LDD_0,
  61         GPIO59_LCD_LDD_1,
  62         GPIO60_LCD_LDD_2,
  63         GPIO61_LCD_LDD_3,
  64         GPIO62_LCD_LDD_4,
  65         GPIO63_LCD_LDD_5,
  66         GPIO64_LCD_LDD_6,
  67         GPIO65_LCD_LDD_7,
  68         GPIO66_LCD_LDD_8,
  69         GPIO67_LCD_LDD_9,
  70         GPIO68_LCD_LDD_10,
  71         GPIO69_LCD_LDD_11,
  72         GPIO70_LCD_LDD_12,
  73         GPIO71_LCD_LDD_13,
  74         GPIO72_LCD_LDD_14,
  75         GPIO73_LCD_LDD_15,
  76         GPIO74_LCD_FCLK,
  77         GPIO75_LCD_LCLK,
  78         GPIO76_LCD_PCLK,
  79         GPIO77_LCD_BIAS,
  80         GPIO16_PWM0_OUT,        /* Backlight */
  81
  82         /* USB Host */
  83         GPIO88_USBH1_PWR,
  84         GPIO89_USBH1_PEN,
  85
  86         /* AC97 */
  87         GPIO28_AC97_BITCLK,
  88         GPIO29_AC97_SDATA_IN_0,
  89         GPIO30_AC97_SDATA_OUT,
  90         GPIO31_AC97_SYNC,
  91         GPIO45_AC97_SYSCLK,
  92
  93         GPIO1_GPIO | WAKEUP_ON_EDGE_BOTH,
  94 };
  95
  96 static unsigned int lpd270_irq_enabled;
  97
  98 static void lpd270_mask_irq(struct irq_data *d)
  99 {
 100         int lpd270_irq = d->irq - LPD270_IRQ(0);
 101
 102         __raw_writew(~(1 << lpd270_irq), LPD270_INT_STATUS);
 103
 104         lpd270_irq_enabled &= ~(1 << lpd270_irq);
 105         __raw_writew(lpd270_irq_enabled, LPD270_INT_MASK);
 106 }
 107
 108 static void lpd270_unmask_irq(struct irq_data *d)
 109 {
 110         int lpd270_irq = d->irq - LPD270_IRQ(0);
 111
 112         lpd270_irq_enabled |= 1 << lpd270_irq;
 113         __raw_writew(lpd270_irq_enabled, LPD270_INT_MASK);
 114 }
 115
 116 static struct irq_chip lpd270_irq_chip = {
 117         .name           = "CPLD",
 118         .irq_ack        = lpd270_mask_irq,
 119         .irq_mask       = lpd270_mask_irq,
 120         .irq_unmask     = lpd270_unmask_irq,
 121 };
 122
 123 static void lpd270_irq_handler(unsigned int irq, struct irq_desc *desc)
 124 {
 125         unsigned long pending;
 126
 127         pending = __raw_readw(LPD270_INT_STATUS) & lpd270_irq_enabled;
 128         do {
 129                 /* clear useless edge notification */
 130                 desc->irq_data.chip->irq_ack(&desc->irq_data);
 131                 if (likely(pending)) {
 132                         irq = LPD270_IRQ(0) + __ffs(pending);
 133                         generic_handle_irq(irq);
 134
 135                         pending = __raw_readw(LPD270_INT_STATUS) &
 136                                                 lpd270_irq_enabled;
 137                 }
 138         } while (pending);
 139 }
 140
 141 static void __init lpd270_init_irq(void)
 142 {
 143         int irq;
 144
 145         pxa27x_init_irq();
 146
 147         __raw_writew(0, LPD270_INT_MASK);
 148         __raw_writew(0, LPD270_INT_STATUS);
 149
 150         /* setup extra LogicPD PXA270 irqs */
 151         for (irq = LPD270_IRQ(2); irq <= LPD270_IRQ(4); irq++) {
 152                 irq_set_chip_and_handler(irq, &lpd270_irq_chip,
 153                                          handle_level_irq);
 154                 set_irq_flags(irq, IRQF_VALID | IRQF_PROBE);
 155         }
 156         irq_set_chained_handler(PXA_GPIO_TO_IRQ(0), lpd270_irq_handler);
 157         irq_set_irq_type(PXA_GPIO_TO_IRQ(0), IRQ_TYPE_EDGE_FALLING);
 158 }
 159
 160
 161 #ifdef CONFIG_PM
 162 static void lpd270_irq_resume(void)
 163 {
 164         __raw_writew(lpd270_irq_enabled, LPD270_INT_MASK);
 165 }
 166
 167 static struct syscore_ops lpd270_irq_syscore_ops = {
 168         .resume = lpd270_irq_resume,
 169 };
 170
 171 static int __init lpd270_irq_device_init(void)
 172 {
 173         if (machine_is_logicpd_pxa270()) {
 174                 register_syscore_ops(&lpd270_irq_syscore_ops);
 175                 return 0;
 176         }
 177         return -ENODEV;
 178 }
 179
 180 device_initcall(lpd270_irq_device_init);
 181 #endif
 182
 183
 184 static struct resource smc91x_resources[] = {
 185         [0] = {
 186                 .start  = LPD270_ETH_PHYS,
 187                 .end    = (LPD270_ETH_PHYS + 0xfffff),
 188                 .flags  = IORESOURCE_MEM,
 189         },
 190         [1] = {
 191                 .start  = LPD270_ETHERNET_IRQ,
 192                 .end    = LPD270_ETHERNET_IRQ,
 193                 .flags  = IORESOURCE_IRQ | IORESOURCE_IRQ_HIGHEDGE,
 194         },
 195 };
 196
 197 struct smc91x_platdata smc91x_platdata = {
 198         .flags = SMC91X_USE_16BIT | SMC91X_NOWAIT,
 199 };
 200
 201 static struct platform_device smc91x_device = {
 202         .name           = "smc91x",
 203         .id             = 0,
 204         .num_resources  = ARRAY_SIZE(smc91x_resources),
 205         .resource       = smc91x_resources,
 206         .dev.platform_data = &smc91x_platdata,
 207 };
 208
 209 static struct resource lpd270_flash_resources[] = {
 210         [0] = {
 211                 .start  = PXA_CS0_PHYS,
 212                 .end    = PXA_CS0_PHYS + SZ_64M - 1,
 213                 .flags  = IORESOURCE_MEM,
 214         },
 215         [1] = {
 216                 .start  = PXA_CS1_PHYS,
 217                 .end    = PXA_CS1_PHYS + SZ_64M - 1,
 218                 .flags  = IORESOURCE_MEM,
 219         },
 220 };
 221
 222 static struct mtd_partition lpd270_flash0_partitions[] = {
 223         {
 224                 .name =         "Bootloader",
 225                 .size =         0x00040000,
 226                 .offset =       0,
 227                 .mask_flags =   MTD_WRITEABLE  /* force read-only */
 228         }, {
 229                 .name =         "Kernel",
 230                 .size =         0x00400000,
 231                 .offset =       0x00040000,
 232         }, {
 233                 .name =         "Filesystem",
 234                 .size =         MTDPART_SIZ_FULL,
 235                 .offset =       0x00440000
 236         },
 237 };
 238
 239 static struct flash_platform_data lpd270_flash_data[2] = {
 240         {
 241                 .name           = "processor-flash",
 242                 .map_name       = "cfi_probe",
 243                 .parts          = lpd270_flash0_partitions,
 244                 .nr_parts       = ARRAY_SIZE(lpd270_flash0_partitions),
 245         }, {
 246                 .name           = "mainboard-flash",
 247                 .map_name       = "cfi_probe",
 248                 .parts          = NULL,
 249                 .nr_parts       = 0,
 250         }
 251 };
 252
 253 static struct platform_device lpd270_flash_device[2] = {
 254         {
 255                 .name           = "pxa2xx-flash",
 256                 .id             = 0,
 257                 .dev = {
 258                         .platform_data  = &lpd270_flash_data[0],
 259                 },
 260                 .resource       = &lpd270_flash_resources[0],
 261                 .num_resources  = 1,
 262         }, {
 263                 .name           = "pxa2xx-flash",
 264                 .id             = 1,
 265                 .dev = {
 266                         .platform_data  = &lpd270_flash_data[1],
 267                 },
 268                 .resource       = &lpd270_flash_resources[1],
 269                 .num_resources  = 1,
 270         },
 271 };
 272
 273 static struct platform_pwm_backlight_data lpd270_backlight_data = {
 274         .pwm_id         = 0,
 275         .max_brightness = 1,
 276         .dft_brightness = 1,
 277         .pwm_period_ns  = 78770,
 278         .enable_gpio    = -1,
 279 };
 280
 281 static struct platform_device lpd270_backlight_device = {
 282         .name           = "pwm-backlight",
 283         .dev            = {
 284                 .parent = &pxa27x_device_pwm0.dev,
 285                 .platform_data = &lpd270_backlight_data,
 286         },
 287 };
 288
 289 /* 5.7" TFT QVGA (LoLo display number 1) */
 290 static struct pxafb_mode_info sharp_lq057q3dc02_mode = {
 291         .pixclock               = 150000,
 292         .xres                   = 320,
 293         .yres                   = 240,
 294         .bpp                    = 16,
 295         .hsync_len              = 0x14,
 296         .left_margin            = 0x28,
 297         .right_margin           = 0x0a,
 298         .vsync_len              = 0x02,
 299         .upper_margin           = 0x08,
 300         .lower_margin           = 0x14,
 301         .sync                   = FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT,
 302 };
 303
 304 static struct pxafb_mach_info sharp_lq057q3dc02 = {
 305         .modes                  = &sharp_lq057q3dc02_mode,
 306         .num_modes              = 1,
 307         .lcd_conn               = LCD_COLOR_TFT_16BPP | LCD_PCLK_EDGE_FALL |
 308                                   LCD_ALTERNATE_MAPPING,
 309 };
 310
 311 /* 12.1" TFT SVGA (LoLo display number 2) */
 312 static struct pxafb_mode_info sharp_lq121s1dg31_mode = {
 313         .pixclock               = 50000,
 314         .xres                   = 800,
 315         .yres                   = 600,
 316         .bpp                    = 16,
 317         .hsync_len              = 0x05,
 318         .left_margin            = 0x52,
 319         .right_margin           = 0x05,
 320         .vsync_len              = 0x04,
 321         .upper_margin           = 0x14,
 322         .lower_margin           = 0x0a,
 323         .sync                   = FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT,
 324 };
 325
 326 static struct pxafb_mach_info sharp_lq121s1dg31 = {
 327         .modes                  = &sharp_lq121s1dg31_mode,
 328         .num_modes              = 1,
 329         .lcd_conn               = LCD_COLOR_TFT_16BPP | LCD_PCLK_EDGE_FALL |
 330                                   LCD_ALTERNATE_MAPPING,
 331 };
 332
 333 /* 3.6" TFT QVGA (LoLo display number 3) */
 334 static struct pxafb_mode_info sharp_lq036q1da01_mode = {
 335         .pixclock               = 150000,
 336         .xres                   = 320,
 337         .yres                   = 240,
 338         .bpp                    = 16,
 339         .hsync_len              = 0x0e,
 340         .left_margin            = 0x04,
 341         .right_margin           = 0x0a,
 342         .vsync_len              = 0x03,
 343         .upper_margin           = 0x03,
 344         .lower_margin           = 0x03,
 345         .sync                   = FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT,
 346 };
 347
 348 static struct pxafb_mach_info sharp_lq036q1da01 = {
 349         .modes                  = &sharp_lq036q1da01_mode,
 350         .num_modes              = 1,
 351         .lcd_conn               = LCD_COLOR_TFT_16BPP | LCD_PCLK_EDGE_FALL |
 352                                   LCD_ALTERNATE_MAPPING,
 353 };
 354
 355 /* 6.4" TFT VGA (LoLo display number 5) */
 356 static struct pxafb_mode_info sharp_lq64d343_mode = {
 357         .pixclock               = 25000,
 358         .xres                   = 640,
 359         .yres                   = 480,
 360         .bpp                    = 16,
 361         .hsync_len              = 0x31,
 362         .left_margin            = 0x89,
 363         .right_margin           = 0x19,
 364         .vsync_len              = 0x12,
 365         .upper_margin           = 0x22,
 366         .lower_margin           = 0x00,
 367         .sync                   = FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT,
 368 };
 369
 370 static struct pxafb_mach_info sharp_lq64d343 = {
 371         .modes                  = &sharp_lq64d343_mode,
 372         .num_modes              = 1,
 373         .lcd_conn               = LCD_COLOR_TFT_16BPP | LCD_PCLK_EDGE_FALL |
 374                                   LCD_ALTERNATE_MAPPING,
 375 };
 376
 377 /* 10.4" TFT VGA (LoLo display number 7) */
 378 static struct pxafb_mode_info sharp_lq10d368_mode = {
 379         .pixclock               = 25000,
 380         .xres                   = 640,
 381         .yres                   = 480,
 382         .bpp                    = 16,
 383         .hsync_len              = 0x31,
 384         .left_margin            = 0x89,
 385         .right_margin           = 0x19,
 386         .vsync_len              = 0x12,
 387         .upper_margin           = 0x22,
 388         .lower_margin           = 0x00,
 389         .sync                   = FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT,
 390 };
 391
 392 static struct pxafb_mach_info sharp_lq10d368 = {
 393         .modes                  = &sharp_lq10d368_mode,
 394         .num_modes              = 1,
 395         .lcd_conn               = LCD_COLOR_TFT_16BPP | LCD_PCLK_EDGE_FALL |
 396                                   LCD_ALTERNATE_MAPPING,
 397 };
 398
 399 /* 3.5" TFT QVGA (LoLo display number 8) */
 400 static struct pxafb_mode_info sharp_lq035q7db02_20_mode = {
 401         .pixclock               = 150000,
 402         .xres                   = 240,
 403         .yres                   = 320,
 404         .bpp                    = 16,
 405         .hsync_len              = 0x0e,
 406         .left_margin            = 0x0a,
 407         .right_margin           = 0x0a,
 408         .vsync_len              = 0x03,
 409         .upper_margin           = 0x05,
 410         .lower_margin           = 0x14,
 411         .sync                   = FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT,
 412 };
 413
 414 static struct pxafb_mach_info sharp_lq035q7db02_20 = {
 415         .modes                  = &sharp_lq035q7db02_20_mode,
 416         .num_modes              = 1,
 417         .lcd_conn               = LCD_COLOR_TFT_16BPP | LCD_PCLK_EDGE_FALL |
 418                                   LCD_ALTERNATE_MAPPING,
 419 };
 420
 421 static struct pxafb_mach_info *lpd270_lcd_to_use;
 422
 423 static int __init lpd270_set_lcd(char *str)
 424 {
 425         if (!strncasecmp(str, "lq057q3dc02", 11)) {
 426                 lpd270_lcd_to_use = &sharp_lq057q3dc02;
 427         } else if (!strncasecmp(str, "lq121s1dg31", 11)) {
 428                 lpd270_lcd_to_use = &sharp_lq121s1dg31;
 429         } else if (!strncasecmp(str, "lq036q1da01", 11)) {
 430                 lpd270_lcd_to_use = &sharp_lq036q1da01;
 431         } else if (!strncasecmp(str, "lq64d343", 8)) {
 432                 lpd270_lcd_to_use = &sharp_lq64d343;
 433         } else if (!strncasecmp(str, "lq10d368", 8)) {
 434                 lpd270_lcd_to_use = &sharp_lq10d368;
 435         } else if (!strncasecmp(str, "lq035q7db02-20", 14)) {
 436                 lpd270_lcd_to_use = &sharp_lq035q7db02_20;
 437         } else {
 438                 printk(KERN_INFO "lpd270: unknown lcd panel [%s]\n", str);
 439         }
 440
 441         return 1;
 442 }
 443
 444 __setup("lcd=", lpd270_set_lcd);
 445
 446 static struct platform_device *platform_devices[] __initdata = {
 447         &smc91x_device,
 448         &lpd270_backlight_device,
 449         &lpd270_flash_device[0],
 450         &lpd270_flash_device[1],
 451 };
 452
 453 static struct pxaohci_platform_data lpd270_ohci_platform_data = {
 454         .port_mode      = PMM_PERPORT_MODE,
 455         .flags          = ENABLE_PORT_ALL | POWER_CONTROL_LOW | POWER_SENSE_LOW,
 456 };
 457
 458 static void __init lpd270_init(void)
 459 {
 460         pxa2xx_mfp_config(ARRAY_AND_SIZE(lpd270_pin_config));
 461
 462         pxa_set_ffuart_info(NULL);
 463         pxa_set_btuart_info(NULL);
 464         pxa_set_stuart_info(NULL);
 465
 466         lpd270_flash_data[0].width = (__raw_readl(BOOT_DEF) & 1) ? 2 : 4;
 467         lpd270_flash_data[1].width = 4;
 468
 469         /*
 470          * System bus arbiter setting:
 471          * - Core_Park
 472          * - LCD_wt:DMA_wt:CORE_Wt = 2:3:4
 473          */
 474         ARB_CNTRL = ARB_CORE_PARK | 0x234;
 475
 476         platform_add_devices(platform_devices, ARRAY_SIZE(platform_devices));
 477
 478         pxa_set_ac97_info(NULL);
 479
 480         if (lpd270_lcd_to_use != NULL)
 481                 pxa_set_fb_info(NULL, lpd270_lcd_to_use);
 482
 483         pxa_set_ohci_info(&lpd270_ohci_platform_data);
 484 }
 485
 486
 487 static struct map_desc lpd270_io_desc[] __initdata = {
 488         {
 489                 .virtual        = (unsigned long)LPD270_CPLD_VIRT,
 490                 .pfn            = __phys_to_pfn(LPD270_CPLD_PHYS),
 491                 .length         = LPD270_CPLD_SIZE,
 492                 .type           = MT_DEVICE,
 493         },
 494 };
 495
 496 static void __init lpd270_map_io(void)
 497 {
 498         pxa27x_map_io();
 499         iotable_init(lpd270_io_desc, ARRAY_SIZE(lpd270_io_desc));
 500
 501         /* for use I SRAM as framebuffer.  */
 502         PSLR |= 0x00000F04;
 503         PCFR  = 0x00000066;
 504 }
 505
 506 MACHINE_START(LOGICPD_PXA270, "LogicPD PXA270 Card Engine")
 507         /* Maintainer: Peter Barada */
 508         .atag_offset    = 0x100,
 509         .map_io         = lpd270_map_io,
 510         .nr_irqs        = LPD270_NR_IRQS,
 511         .init_irq       = lpd270_init_irq,
 512         .handle_irq     = pxa27x_handle_irq,
 513         .init_time      = pxa_timer_init,
 514         .init_machine   = lpd270_init,
 515         .restart        = pxa_restart,
 516 MACHINE_END