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