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#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
  53static 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
  95static unsigned int lpd270_irq_enabled;
  96
  97static 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
 107static 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
 115static 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
 122static 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
 140static 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
 161static void lpd270_irq_resume(void)
 162{
 163        __raw_writew(lpd270_irq_enabled, LPD270_INT_MASK);
 164}
 165
 166static struct syscore_ops lpd270_irq_syscore_ops = {
 167        .resume = lpd270_irq_resume,
 168};
 169
 170static 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
 179device_initcall(lpd270_irq_device_init);
 180#endif
 181
 182
 183static 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
 196static struct platform_device smc91x_device = {
 197        .name           = "smc91x",
 198        .id             = 0,
 199        .num_resources  = ARRAY_SIZE(smc91x_resources),
 200        .resource       = smc91x_resources,
 201};
 202
 203static 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
 216static 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
 233static 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
 247static 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
 267static 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};
 273
 274static struct platform_device lpd270_backlight_device = {
 275        .name           = "pwm-backlight",
 276        .dev            = {
 277                .parent = &pxa27x_device_pwm0.dev,
 278                .platform_data = &lpd270_backlight_data,
 279        },
 280};
 281
 282/* 5.7" TFT QVGA (LoLo display number 1) */
 283static struct pxafb_mode_info sharp_lq057q3dc02_mode = {
 284        .pixclock               = 150000,
 285        .xres                   = 320,
 286        .yres                   = 240,
 287        .bpp                    = 16,
 288        .hsync_len              = 0x14,
 289        .left_margin            = 0x28,
 290        .right_margin           = 0x0a,
 291        .vsync_len              = 0x02,
 292        .upper_margin           = 0x08,
 293        .lower_margin           = 0x14,
 294        .sync                   = FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT,
 295};
 296
 297static struct pxafb_mach_info sharp_lq057q3dc02 = {
 298        .modes                  = &sharp_lq057q3dc02_mode,
 299        .num_modes              = 1,
 300        .lcd_conn               = LCD_COLOR_TFT_16BPP | LCD_PCLK_EDGE_FALL |
 301                                  LCD_ALTERNATE_MAPPING,
 302};
 303
 304/* 12.1" TFT SVGA (LoLo display number 2) */
 305static struct pxafb_mode_info sharp_lq121s1dg31_mode = {
 306        .pixclock               = 50000,
 307        .xres                   = 800,
 308        .yres                   = 600,
 309        .bpp                    = 16,
 310        .hsync_len              = 0x05,
 311        .left_margin            = 0x52,
 312        .right_margin           = 0x05,
 313        .vsync_len              = 0x04,
 314        .upper_margin           = 0x14,
 315        .lower_margin           = 0x0a,
 316        .sync                   = FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT,
 317};
 318
 319static struct pxafb_mach_info sharp_lq121s1dg31 = {
 320        .modes                  = &sharp_lq121s1dg31_mode,
 321        .num_modes              = 1,
 322        .lcd_conn               = LCD_COLOR_TFT_16BPP | LCD_PCLK_EDGE_FALL |
 323                                  LCD_ALTERNATE_MAPPING,
 324};
 325
 326/* 3.6" TFT QVGA (LoLo display number 3) */
 327static struct pxafb_mode_info sharp_lq036q1da01_mode = {
 328        .pixclock               = 150000,
 329        .xres                   = 320,
 330        .yres                   = 240,
 331        .bpp                    = 16,
 332        .hsync_len              = 0x0e,
 333        .left_margin            = 0x04,
 334        .right_margin           = 0x0a,
 335        .vsync_len              = 0x03,
 336        .upper_margin           = 0x03,
 337        .lower_margin           = 0x03,
 338        .sync                   = FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT,
 339};
 340
 341static struct pxafb_mach_info sharp_lq036q1da01 = {
 342        .modes                  = &sharp_lq036q1da01_mode,
 343        .num_modes              = 1,
 344        .lcd_conn               = LCD_COLOR_TFT_16BPP | LCD_PCLK_EDGE_FALL |
 345                                  LCD_ALTERNATE_MAPPING,
 346};
 347
 348/* 6.4" TFT VGA (LoLo display number 5) */
 349static struct pxafb_mode_info sharp_lq64d343_mode = {
 350        .pixclock               = 25000,
 351        .xres                   = 640,
 352        .yres                   = 480,
 353        .bpp                    = 16,
 354        .hsync_len              = 0x31,
 355        .left_margin            = 0x89,
 356        .right_margin           = 0x19,
 357        .vsync_len              = 0x12,
 358        .upper_margin           = 0x22,
 359        .lower_margin           = 0x00,
 360        .sync                   = FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT,
 361};
 362
 363static struct pxafb_mach_info sharp_lq64d343 = {
 364        .modes                  = &sharp_lq64d343_mode,
 365        .num_modes              = 1,
 366        .lcd_conn               = LCD_COLOR_TFT_16BPP | LCD_PCLK_EDGE_FALL |
 367                                  LCD_ALTERNATE_MAPPING,
 368};
 369
 370/* 10.4" TFT VGA (LoLo display number 7) */
 371static struct pxafb_mode_info sharp_lq10d368_mode = {
 372        .pixclock               = 25000,
 373        .xres                   = 640,
 374        .yres                   = 480,
 375        .bpp                    = 16,
 376        .hsync_len              = 0x31,
 377        .left_margin            = 0x89,
 378        .right_margin           = 0x19,
 379        .vsync_len              = 0x12,
 380        .upper_margin           = 0x22,
 381        .lower_margin           = 0x00,
 382        .sync                   = FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT,
 383};
 384
 385static struct pxafb_mach_info sharp_lq10d368 = {
 386        .modes                  = &sharp_lq10d368_mode,
 387        .num_modes              = 1,
 388        .lcd_conn               = LCD_COLOR_TFT_16BPP | LCD_PCLK_EDGE_FALL |
 389                                  LCD_ALTERNATE_MAPPING,
 390};
 391
 392/* 3.5" TFT QVGA (LoLo display number 8) */
 393static struct pxafb_mode_info sharp_lq035q7db02_20_mode = {
 394        .pixclock               = 150000,
 395        .xres                   = 240,
 396        .yres                   = 320,
 397        .bpp                    = 16,
 398        .hsync_len              = 0x0e,
 399        .left_margin            = 0x0a,
 400        .right_margin           = 0x0a,
 401        .vsync_len              = 0x03,
 402        .upper_margin           = 0x05,
 403        .lower_margin           = 0x14,
 404        .sync                   = FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT,
 405};
 406
 407static struct pxafb_mach_info sharp_lq035q7db02_20 = {
 408        .modes                  = &sharp_lq035q7db02_20_mode,
 409        .num_modes              = 1,
 410        .lcd_conn               = LCD_COLOR_TFT_16BPP | LCD_PCLK_EDGE_FALL |
 411                                  LCD_ALTERNATE_MAPPING,
 412};
 413
 414static struct pxafb_mach_info *lpd270_lcd_to_use;
 415
 416static int __init lpd270_set_lcd(char *str)
 417{
 418        if (!strnicmp(str, "lq057q3dc02", 11)) {
 419                lpd270_lcd_to_use = &sharp_lq057q3dc02;
 420        } else if (!strnicmp(str, "lq121s1dg31", 11)) {
 421                lpd270_lcd_to_use = &sharp_lq121s1dg31;
 422        } else if (!strnicmp(str, "lq036q1da01", 11)) {
 423                lpd270_lcd_to_use = &sharp_lq036q1da01;
 424        } else if (!strnicmp(str, "lq64d343", 8)) {
 425                lpd270_lcd_to_use = &sharp_lq64d343;
 426        } else if (!strnicmp(str, "lq10d368", 8)) {
 427                lpd270_lcd_to_use = &sharp_lq10d368;
 428        } else if (!strnicmp(str, "lq035q7db02-20", 14)) {
 429                lpd270_lcd_to_use = &sharp_lq035q7db02_20;
 430        } else {
 431                printk(KERN_INFO "lpd270: unknown lcd panel [%s]\n", str);
 432        }
 433
 434        return 1;
 435}
 436
 437__setup("lcd=", lpd270_set_lcd);
 438
 439static struct platform_device *platform_devices[] __initdata = {
 440        &smc91x_device,
 441        &lpd270_backlight_device,
 442        &lpd270_flash_device[0],
 443        &lpd270_flash_device[1],
 444};
 445
 446static struct pxaohci_platform_data lpd270_ohci_platform_data = {
 447        .port_mode      = PMM_PERPORT_MODE,
 448        .flags          = ENABLE_PORT_ALL | POWER_CONTROL_LOW | POWER_SENSE_LOW,
 449};
 450
 451static void __init lpd270_init(void)
 452{
 453        pxa2xx_mfp_config(ARRAY_AND_SIZE(lpd270_pin_config));
 454
 455        pxa_set_ffuart_info(NULL);
 456        pxa_set_btuart_info(NULL);
 457        pxa_set_stuart_info(NULL);
 458
 459        lpd270_flash_data[0].width = (__raw_readl(BOOT_DEF) & 1) ? 2 : 4;
 460        lpd270_flash_data[1].width = 4;
 461
 462        /*
 463         * System bus arbiter setting:
 464         * - Core_Park
 465         * - LCD_wt:DMA_wt:CORE_Wt = 2:3:4
 466         */
 467        ARB_CNTRL = ARB_CORE_PARK | 0x234;
 468
 469        platform_add_devices(platform_devices, ARRAY_SIZE(platform_devices));
 470
 471        pxa_set_ac97_info(NULL);
 472
 473        if (lpd270_lcd_to_use != NULL)
 474                pxa_set_fb_info(NULL, lpd270_lcd_to_use);
 475
 476        pxa_set_ohci_info(&lpd270_ohci_platform_data);
 477}
 478
 479
 480static struct map_desc lpd270_io_desc[] __initdata = {
 481        {
 482                .virtual        = (unsigned long)LPD270_CPLD_VIRT,
 483                .pfn            = __phys_to_pfn(LPD270_CPLD_PHYS),
 484                .length         = LPD270_CPLD_SIZE,
 485                .type           = MT_DEVICE,
 486        },
 487};
 488
 489static void __init lpd270_map_io(void)
 490{
 491        pxa27x_map_io();
 492        iotable_init(lpd270_io_desc, ARRAY_SIZE(lpd270_io_desc));
 493
 494        /* for use I SRAM as framebuffer.  */
 495        PSLR |= 0x00000F04;
 496        PCFR  = 0x00000066;
 497}
 498
 499MACHINE_START(LOGICPD_PXA270, "LogicPD PXA270 Card Engine")
 500        /* Maintainer: Peter Barada */
 501        .atag_offset    = 0x100,
 502        .map_io         = lpd270_map_io,
 503        .nr_irqs        = LPD270_NR_IRQS,
 504        .init_irq       = lpd270_init_irq,
 505        .handle_irq     = pxa27x_handle_irq,
 506        .init_time      = pxa_timer_init,
 507        .init_machine   = lpd270_init,
 508        .restart        = pxa_restart,
 509MACHINE_END
 510