linux/arch/arm/mach-pxa/lpd270.c
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   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
  16#include <linux/init.h>
  17#include <linux/platform_device.h>
  18#include <linux/sysdev.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/gpio.h>
  43#include <mach/lpd270.h>
  44#include <mach/audio.h>
  45#include <mach/pxafb.h>
  46#include <mach/mmc.h>
  47#include <mach/irda.h>
  48#include <mach/ohci.h>
  49#include <mach/smemc.h>
  50
  51#include "generic.h"
  52#include "devices.h"
  53
  54static 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
  96static unsigned int lpd270_irq_enabled;
  97
  98static 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
 108static 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
 116static 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
 123static 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
 141static 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                set_irq_chip(irq, &lpd270_irq_chip);
 153                set_irq_handler(irq, handle_level_irq);
 154                set_irq_flags(irq, IRQF_VALID | IRQF_PROBE);
 155        }
 156        set_irq_chained_handler(IRQ_GPIO(0), lpd270_irq_handler);
 157        set_irq_type(IRQ_GPIO(0), IRQ_TYPE_EDGE_FALLING);
 158}
 159
 160
 161#ifdef CONFIG_PM
 162static int lpd270_irq_resume(struct sys_device *dev)
 163{
 164        __raw_writew(lpd270_irq_enabled, LPD270_INT_MASK);
 165        return 0;
 166}
 167
 168static struct sysdev_class lpd270_irq_sysclass = {
 169        .name = "cpld_irq",
 170        .resume = lpd270_irq_resume,
 171};
 172
 173static struct sys_device lpd270_irq_device = {
 174        .cls = &lpd270_irq_sysclass,
 175};
 176
 177static int __init lpd270_irq_device_init(void)
 178{
 179        int ret = -ENODEV;
 180        if (machine_is_logicpd_pxa270()) {
 181                ret = sysdev_class_register(&lpd270_irq_sysclass);
 182                if (ret == 0)
 183                        ret = sysdev_register(&lpd270_irq_device);
 184        }
 185        return ret;
 186}
 187
 188device_initcall(lpd270_irq_device_init);
 189#endif
 190
 191
 192static struct resource smc91x_resources[] = {
 193        [0] = {
 194                .start  = LPD270_ETH_PHYS,
 195                .end    = (LPD270_ETH_PHYS + 0xfffff),
 196                .flags  = IORESOURCE_MEM,
 197        },
 198        [1] = {
 199                .start  = LPD270_ETHERNET_IRQ,
 200                .end    = LPD270_ETHERNET_IRQ,
 201                .flags  = IORESOURCE_IRQ,
 202        },
 203};
 204
 205static struct platform_device smc91x_device = {
 206        .name           = "smc91x",
 207        .id             = 0,
 208        .num_resources  = ARRAY_SIZE(smc91x_resources),
 209        .resource       = smc91x_resources,
 210};
 211
 212static struct resource lpd270_flash_resources[] = {
 213        [0] = {
 214                .start  = PXA_CS0_PHYS,
 215                .end    = PXA_CS0_PHYS + SZ_64M - 1,
 216                .flags  = IORESOURCE_MEM,
 217        },
 218        [1] = {
 219                .start  = PXA_CS1_PHYS,
 220                .end    = PXA_CS1_PHYS + SZ_64M - 1,
 221                .flags  = IORESOURCE_MEM,
 222        },
 223};
 224
 225static struct mtd_partition lpd270_flash0_partitions[] = {
 226        {
 227                .name =         "Bootloader",
 228                .size =         0x00040000,
 229                .offset =       0,
 230                .mask_flags =   MTD_WRITEABLE  /* force read-only */
 231        }, {
 232                .name =         "Kernel",
 233                .size =         0x00400000,
 234                .offset =       0x00040000,
 235        }, {
 236                .name =         "Filesystem",
 237                .size =         MTDPART_SIZ_FULL,
 238                .offset =       0x00440000
 239        },
 240};
 241
 242static struct flash_platform_data lpd270_flash_data[2] = {
 243        {
 244                .name           = "processor-flash",
 245                .map_name       = "cfi_probe",
 246                .parts          = lpd270_flash0_partitions,
 247                .nr_parts       = ARRAY_SIZE(lpd270_flash0_partitions),
 248        }, {
 249                .name           = "mainboard-flash",
 250                .map_name       = "cfi_probe",
 251                .parts          = NULL,
 252                .nr_parts       = 0,
 253        }
 254};
 255
 256static struct platform_device lpd270_flash_device[2] = {
 257        {
 258                .name           = "pxa2xx-flash",
 259                .id             = 0,
 260                .dev = {
 261                        .platform_data  = &lpd270_flash_data[0],
 262                },
 263                .resource       = &lpd270_flash_resources[0],
 264                .num_resources  = 1,
 265        }, {
 266                .name           = "pxa2xx-flash",
 267                .id             = 1,
 268                .dev = {
 269                        .platform_data  = &lpd270_flash_data[1],
 270                },
 271                .resource       = &lpd270_flash_resources[1],
 272                .num_resources  = 1,
 273        },
 274};
 275
 276static struct platform_pwm_backlight_data lpd270_backlight_data = {
 277        .pwm_id         = 0,
 278        .max_brightness = 1,
 279        .dft_brightness = 1,
 280        .pwm_period_ns  = 78770,
 281};
 282
 283static struct platform_device lpd270_backlight_device = {
 284        .name           = "pwm-backlight",
 285        .dev            = {
 286                .parent = &pxa27x_device_pwm0.dev,
 287                .platform_data = &lpd270_backlight_data,
 288        },
 289};
 290
 291/* 5.7" TFT QVGA (LoLo display number 1) */
 292static struct pxafb_mode_info sharp_lq057q3dc02_mode = {
 293        .pixclock               = 150000,
 294        .xres                   = 320,
 295        .yres                   = 240,
 296        .bpp                    = 16,
 297        .hsync_len              = 0x14,
 298        .left_margin            = 0x28,
 299        .right_margin           = 0x0a,
 300        .vsync_len              = 0x02,
 301        .upper_margin           = 0x08,
 302        .lower_margin           = 0x14,
 303        .sync                   = FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT,
 304};
 305
 306static struct pxafb_mach_info sharp_lq057q3dc02 = {
 307        .modes                  = &sharp_lq057q3dc02_mode,
 308        .num_modes              = 1,
 309        .lcd_conn               = LCD_COLOR_TFT_16BPP | LCD_PCLK_EDGE_FALL |
 310                                  LCD_ALTERNATE_MAPPING,
 311};
 312
 313/* 12.1" TFT SVGA (LoLo display number 2) */
 314static struct pxafb_mode_info sharp_lq121s1dg31_mode = {
 315        .pixclock               = 50000,
 316        .xres                   = 800,
 317        .yres                   = 600,
 318        .bpp                    = 16,
 319        .hsync_len              = 0x05,
 320        .left_margin            = 0x52,
 321        .right_margin           = 0x05,
 322        .vsync_len              = 0x04,
 323        .upper_margin           = 0x14,
 324        .lower_margin           = 0x0a,
 325        .sync                   = FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT,
 326};
 327
 328static struct pxafb_mach_info sharp_lq121s1dg31 = {
 329        .modes                  = &sharp_lq121s1dg31_mode,
 330        .num_modes              = 1,
 331        .lcd_conn               = LCD_COLOR_TFT_16BPP | LCD_PCLK_EDGE_FALL |
 332                                  LCD_ALTERNATE_MAPPING,
 333};
 334
 335/* 3.6" TFT QVGA (LoLo display number 3) */
 336static struct pxafb_mode_info sharp_lq036q1da01_mode = {
 337        .pixclock               = 150000,
 338        .xres                   = 320,
 339        .yres                   = 240,
 340        .bpp                    = 16,
 341        .hsync_len              = 0x0e,
 342        .left_margin            = 0x04,
 343        .right_margin           = 0x0a,
 344        .vsync_len              = 0x03,
 345        .upper_margin           = 0x03,
 346        .lower_margin           = 0x03,
 347        .sync                   = FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT,
 348};
 349
 350static struct pxafb_mach_info sharp_lq036q1da01 = {
 351        .modes                  = &sharp_lq036q1da01_mode,
 352        .num_modes              = 1,
 353        .lcd_conn               = LCD_COLOR_TFT_16BPP | LCD_PCLK_EDGE_FALL |
 354                                  LCD_ALTERNATE_MAPPING,
 355};
 356
 357/* 6.4" TFT VGA (LoLo display number 5) */
 358static struct pxafb_mode_info sharp_lq64d343_mode = {
 359        .pixclock               = 25000,
 360        .xres                   = 640,
 361        .yres                   = 480,
 362        .bpp                    = 16,
 363        .hsync_len              = 0x31,
 364        .left_margin            = 0x89,
 365        .right_margin           = 0x19,
 366        .vsync_len              = 0x12,
 367        .upper_margin           = 0x22,
 368        .lower_margin           = 0x00,
 369        .sync                   = FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT,
 370};
 371
 372static struct pxafb_mach_info sharp_lq64d343 = {
 373        .modes                  = &sharp_lq64d343_mode,
 374        .num_modes              = 1,
 375        .lcd_conn               = LCD_COLOR_TFT_16BPP | LCD_PCLK_EDGE_FALL |
 376                                  LCD_ALTERNATE_MAPPING,
 377};
 378
 379/* 10.4" TFT VGA (LoLo display number 7) */
 380static struct pxafb_mode_info sharp_lq10d368_mode = {
 381        .pixclock               = 25000,
 382        .xres                   = 640,
 383        .yres                   = 480,
 384        .bpp                    = 16,
 385        .hsync_len              = 0x31,
 386        .left_margin            = 0x89,
 387        .right_margin           = 0x19,
 388        .vsync_len              = 0x12,
 389        .upper_margin           = 0x22,
 390        .lower_margin           = 0x00,
 391        .sync                   = FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT,
 392};
 393
 394static struct pxafb_mach_info sharp_lq10d368 = {
 395        .modes                  = &sharp_lq10d368_mode,
 396        .num_modes              = 1,
 397        .lcd_conn               = LCD_COLOR_TFT_16BPP | LCD_PCLK_EDGE_FALL |
 398                                  LCD_ALTERNATE_MAPPING,
 399};
 400
 401/* 3.5" TFT QVGA (LoLo display number 8) */
 402static struct pxafb_mode_info sharp_lq035q7db02_20_mode = {
 403        .pixclock               = 150000,
 404        .xres                   = 240,
 405        .yres                   = 320,
 406        .bpp                    = 16,
 407        .hsync_len              = 0x0e,
 408        .left_margin            = 0x0a,
 409        .right_margin           = 0x0a,
 410        .vsync_len              = 0x03,
 411        .upper_margin           = 0x05,
 412        .lower_margin           = 0x14,
 413        .sync                   = FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT,
 414};
 415
 416static struct pxafb_mach_info sharp_lq035q7db02_20 = {
 417        .modes                  = &sharp_lq035q7db02_20_mode,
 418        .num_modes              = 1,
 419        .lcd_conn               = LCD_COLOR_TFT_16BPP | LCD_PCLK_EDGE_FALL |
 420                                  LCD_ALTERNATE_MAPPING,
 421};
 422
 423static struct pxafb_mach_info *lpd270_lcd_to_use;
 424
 425static int __init lpd270_set_lcd(char *str)
 426{
 427        if (!strnicmp(str, "lq057q3dc02", 11)) {
 428                lpd270_lcd_to_use = &sharp_lq057q3dc02;
 429        } else if (!strnicmp(str, "lq121s1dg31", 11)) {
 430                lpd270_lcd_to_use = &sharp_lq121s1dg31;
 431        } else if (!strnicmp(str, "lq036q1da01", 11)) {
 432                lpd270_lcd_to_use = &sharp_lq036q1da01;
 433        } else if (!strnicmp(str, "lq64d343", 8)) {
 434                lpd270_lcd_to_use = &sharp_lq64d343;
 435        } else if (!strnicmp(str, "lq10d368", 8)) {
 436                lpd270_lcd_to_use = &sharp_lq10d368;
 437        } else if (!strnicmp(str, "lq035q7db02-20", 14)) {
 438                lpd270_lcd_to_use = &sharp_lq035q7db02_20;
 439        } else {
 440                printk(KERN_INFO "lpd270: unknown lcd panel [%s]\n", str);
 441        }
 442
 443        return 1;
 444}
 445
 446__setup("lcd=", lpd270_set_lcd);
 447
 448static struct platform_device *platform_devices[] __initdata = {
 449        &smc91x_device,
 450        &lpd270_backlight_device,
 451        &lpd270_flash_device[0],
 452        &lpd270_flash_device[1],
 453};
 454
 455static struct pxaohci_platform_data lpd270_ohci_platform_data = {
 456        .port_mode      = PMM_PERPORT_MODE,
 457        .flags          = ENABLE_PORT_ALL | POWER_CONTROL_LOW | POWER_SENSE_LOW,
 458};
 459
 460static void __init lpd270_init(void)
 461{
 462        pxa2xx_mfp_config(ARRAY_AND_SIZE(lpd270_pin_config));
 463
 464        pxa_set_ffuart_info(NULL);
 465        pxa_set_btuart_info(NULL);
 466        pxa_set_stuart_info(NULL);
 467
 468        lpd270_flash_data[0].width = (__raw_readl(BOOT_DEF) & 1) ? 2 : 4;
 469        lpd270_flash_data[1].width = 4;
 470
 471        /*
 472         * System bus arbiter setting:
 473         * - Core_Park
 474         * - LCD_wt:DMA_wt:CORE_Wt = 2:3:4
 475         */
 476        ARB_CNTRL = ARB_CORE_PARK | 0x234;
 477
 478        platform_add_devices(platform_devices, ARRAY_SIZE(platform_devices));
 479
 480        pxa_set_ac97_info(NULL);
 481
 482        if (lpd270_lcd_to_use != NULL)
 483                set_pxa_fb_info(lpd270_lcd_to_use);
 484
 485        pxa_set_ohci_info(&lpd270_ohci_platform_data);
 486}
 487
 488
 489static struct map_desc lpd270_io_desc[] __initdata = {
 490        {
 491                .virtual        = LPD270_CPLD_VIRT,
 492                .pfn            = __phys_to_pfn(LPD270_CPLD_PHYS),
 493                .length         = LPD270_CPLD_SIZE,
 494                .type           = MT_DEVICE,
 495        },
 496};
 497
 498static void __init lpd270_map_io(void)
 499{
 500        pxa27x_map_io();
 501        iotable_init(lpd270_io_desc, ARRAY_SIZE(lpd270_io_desc));
 502
 503        /* for use I SRAM as framebuffer.  */
 504        PSLR |= 0x00000F04;
 505        PCFR  = 0x00000066;
 506}
 507
 508MACHINE_START(LOGICPD_PXA270, "LogicPD PXA270 Card Engine")
 509        /* Maintainer: Peter Barada */
 510        .boot_params    = 0xa0000100,
 511        .map_io         = lpd270_map_io,
 512        .nr_irqs        = LPD270_NR_IRQS,
 513        .init_irq       = lpd270_init_irq,
 514        .timer          = &pxa_timer,
 515        .init_machine   = lpd270_init,
 516MACHINE_END
 517