linux/arch/arm/mach-pxa/lpd270.c
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   1// SPDX-License-Identifier: GPL-2.0-only
   2/*
   3 * linux/arch/arm/mach-pxa/lpd270.c
   4 *
   5 * Support for the LogicPD PXA270 Card Engine.
   6 * Derived from the mainstone code, which carries these notices:
   7 *
   8 * Author:      Nicolas Pitre
   9 * Created:     Nov 05, 2002
  10 * Copyright:   MontaVista Software Inc.
  11 */
  12#include <linux/gpio.h>
  13#include <linux/init.h>
  14#include <linux/platform_device.h>
  15#include <linux/syscore_ops.h>
  16#include <linux/interrupt.h>
  17#include <linux/sched.h>
  18#include <linux/bitops.h>
  19#include <linux/fb.h>
  20#include <linux/ioport.h>
  21#include <linux/mtd/mtd.h>
  22#include <linux/mtd/partitions.h>
  23#include <linux/pwm.h>
  24#include <linux/pwm_backlight.h>
  25#include <linux/smc91x.h>
  26
  27#include <asm/types.h>
  28#include <asm/setup.h>
  29#include <asm/memory.h>
  30#include <asm/mach-types.h>
  31#include <mach/hardware.h>
  32#include <asm/irq.h>
  33#include <linux/sizes.h>
  34
  35#include <asm/mach/arch.h>
  36#include <asm/mach/map.h>
  37#include <asm/mach/irq.h>
  38#include <asm/mach/flash.h>
  39
  40#include "pxa27x.h"
  41#include "lpd270.h"
  42#include <mach/audio.h>
  43#include <linux/platform_data/video-pxafb.h>
  44#include <linux/platform_data/mmc-pxamci.h>
  45#include <linux/platform_data/irda-pxaficp.h>
  46#include <linux/platform_data/usb-ohci-pxa27x.h>
  47#include <mach/smemc.h>
  48
  49#include "generic.h"
  50#include "devices.h"
  51
  52static unsigned long lpd270_pin_config[] __initdata = {
  53        /* Chip Selects */
  54        GPIO15_nCS_1,   /* Mainboard Flash */
  55        GPIO78_nCS_2,   /* CPLD + Ethernet */
  56
  57        /* LCD - 16bpp Active TFT */
  58        GPIO58_LCD_LDD_0,
  59        GPIO59_LCD_LDD_1,
  60        GPIO60_LCD_LDD_2,
  61        GPIO61_LCD_LDD_3,
  62        GPIO62_LCD_LDD_4,
  63        GPIO63_LCD_LDD_5,
  64        GPIO64_LCD_LDD_6,
  65        GPIO65_LCD_LDD_7,
  66        GPIO66_LCD_LDD_8,
  67        GPIO67_LCD_LDD_9,
  68        GPIO68_LCD_LDD_10,
  69        GPIO69_LCD_LDD_11,
  70        GPIO70_LCD_LDD_12,
  71        GPIO71_LCD_LDD_13,
  72        GPIO72_LCD_LDD_14,
  73        GPIO73_LCD_LDD_15,
  74        GPIO74_LCD_FCLK,
  75        GPIO75_LCD_LCLK,
  76        GPIO76_LCD_PCLK,
  77        GPIO77_LCD_BIAS,
  78        GPIO16_PWM0_OUT,        /* Backlight */
  79
  80        /* USB Host */
  81        GPIO88_USBH1_PWR,
  82        GPIO89_USBH1_PEN,
  83
  84        /* AC97 */
  85        GPIO28_AC97_BITCLK,
  86        GPIO29_AC97_SDATA_IN_0,
  87        GPIO30_AC97_SDATA_OUT,
  88        GPIO31_AC97_SYNC,
  89        GPIO45_AC97_SYSCLK,
  90
  91        GPIO1_GPIO | WAKEUP_ON_EDGE_BOTH,
  92};
  93
  94static unsigned int lpd270_irq_enabled;
  95
  96static void lpd270_mask_irq(struct irq_data *d)
  97{
  98        int lpd270_irq = d->irq - LPD270_IRQ(0);
  99
 100        __raw_writew(~(1 << lpd270_irq), LPD270_INT_STATUS);
 101
 102        lpd270_irq_enabled &= ~(1 << lpd270_irq);
 103        __raw_writew(lpd270_irq_enabled, LPD270_INT_MASK);
 104}
 105
 106static void lpd270_unmask_irq(struct irq_data *d)
 107{
 108        int lpd270_irq = d->irq - LPD270_IRQ(0);
 109
 110        lpd270_irq_enabled |= 1 << lpd270_irq;
 111        __raw_writew(lpd270_irq_enabled, LPD270_INT_MASK);
 112}
 113
 114static struct irq_chip lpd270_irq_chip = {
 115        .name           = "CPLD",
 116        .irq_ack        = lpd270_mask_irq,
 117        .irq_mask       = lpd270_mask_irq,
 118        .irq_unmask     = lpd270_unmask_irq,
 119};
 120
 121static void lpd270_irq_handler(struct irq_desc *desc)
 122{
 123        unsigned int irq;
 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                irq_clear_status_flags(irq, IRQ_NOREQUEST | IRQ_NOPROBE);
 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 | IORESOURCE_IRQ_HIGHEDGE,
 193        },
 194};
 195
 196struct smc91x_platdata smc91x_platdata = {
 197        .flags = SMC91X_USE_16BIT | SMC91X_NOWAIT,
 198};
 199
 200static struct platform_device smc91x_device = {
 201        .name           = "smc91x",
 202        .id             = 0,
 203        .num_resources  = ARRAY_SIZE(smc91x_resources),
 204        .resource       = smc91x_resources,
 205        .dev.platform_data = &smc91x_platdata,
 206};
 207
 208static struct resource lpd270_flash_resources[] = {
 209        [0] = {
 210                .start  = PXA_CS0_PHYS,
 211                .end    = PXA_CS0_PHYS + SZ_64M - 1,
 212                .flags  = IORESOURCE_MEM,
 213        },
 214        [1] = {
 215                .start  = PXA_CS1_PHYS,
 216                .end    = PXA_CS1_PHYS + SZ_64M - 1,
 217                .flags  = IORESOURCE_MEM,
 218        },
 219};
 220
 221static struct mtd_partition lpd270_flash0_partitions[] = {
 222        {
 223                .name =         "Bootloader",
 224                .size =         0x00040000,
 225                .offset =       0,
 226                .mask_flags =   MTD_WRITEABLE  /* force read-only */
 227        }, {
 228                .name =         "Kernel",
 229                .size =         0x00400000,
 230                .offset =       0x00040000,
 231        }, {
 232                .name =         "Filesystem",
 233                .size =         MTDPART_SIZ_FULL,
 234                .offset =       0x00440000
 235        },
 236};
 237
 238static struct flash_platform_data lpd270_flash_data[2] = {
 239        {
 240                .name           = "processor-flash",
 241                .map_name       = "cfi_probe",
 242                .parts          = lpd270_flash0_partitions,
 243                .nr_parts       = ARRAY_SIZE(lpd270_flash0_partitions),
 244        }, {
 245                .name           = "mainboard-flash",
 246                .map_name       = "cfi_probe",
 247                .parts          = NULL,
 248                .nr_parts       = 0,
 249        }
 250};
 251
 252static struct platform_device lpd270_flash_device[2] = {
 253        {
 254                .name           = "pxa2xx-flash",
 255                .id             = 0,
 256                .dev = {
 257                        .platform_data  = &lpd270_flash_data[0],
 258                },
 259                .resource       = &lpd270_flash_resources[0],
 260                .num_resources  = 1,
 261        }, {
 262                .name           = "pxa2xx-flash",
 263                .id             = 1,
 264                .dev = {
 265                        .platform_data  = &lpd270_flash_data[1],
 266                },
 267                .resource       = &lpd270_flash_resources[1],
 268                .num_resources  = 1,
 269        },
 270};
 271
 272static struct pwm_lookup lpd270_pwm_lookup[] = {
 273        PWM_LOOKUP("pxa27x-pwm.0", 0, "pwm-backlight.0", NULL, 78770,
 274                   PWM_POLARITY_NORMAL),
 275};
 276
 277static struct platform_pwm_backlight_data lpd270_backlight_data = {
 278        .max_brightness = 1,
 279        .dft_brightness = 1,
 280        .enable_gpio    = -1,
 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 (!strncasecmp(str, "lq057q3dc02", 11)) {
 428                lpd270_lcd_to_use = &sharp_lq057q3dc02;
 429        } else if (!strncasecmp(str, "lq121s1dg31", 11)) {
 430                lpd270_lcd_to_use = &sharp_lq121s1dg31;
 431        } else if (!strncasecmp(str, "lq036q1da01", 11)) {
 432                lpd270_lcd_to_use = &sharp_lq036q1da01;
 433        } else if (!strncasecmp(str, "lq64d343", 8)) {
 434                lpd270_lcd_to_use = &sharp_lq64d343;
 435        } else if (!strncasecmp(str, "lq10d368", 8)) {
 436                lpd270_lcd_to_use = &sharp_lq10d368;
 437        } else if (!strncasecmp(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        pwm_add_table(lpd270_pwm_lookup, ARRAY_SIZE(lpd270_pwm_lookup));
 479        platform_add_devices(platform_devices, ARRAY_SIZE(platform_devices));
 480
 481        pxa_set_ac97_info(NULL);
 482
 483        if (lpd270_lcd_to_use != NULL)
 484                pxa_set_fb_info(NULL, lpd270_lcd_to_use);
 485
 486        pxa_set_ohci_info(&lpd270_ohci_platform_data);
 487}
 488
 489
 490static struct map_desc lpd270_io_desc[] __initdata = {
 491        {
 492                .virtual        = (unsigned long)LPD270_CPLD_VIRT,
 493                .pfn            = __phys_to_pfn(LPD270_CPLD_PHYS),
 494                .length         = LPD270_CPLD_SIZE,
 495                .type           = MT_DEVICE,
 496        },
 497};
 498
 499static void __init lpd270_map_io(void)
 500{
 501        pxa27x_map_io();
 502        iotable_init(lpd270_io_desc, ARRAY_SIZE(lpd270_io_desc));
 503
 504        /* for use I SRAM as framebuffer.  */
 505        PSLR |= 0x00000F04;
 506        PCFR  = 0x00000066;
 507}
 508
 509MACHINE_START(LOGICPD_PXA270, "LogicPD PXA270 Card Engine")
 510        /* Maintainer: Peter Barada */
 511        .atag_offset    = 0x100,
 512        .map_io         = lpd270_map_io,
 513        .nr_irqs        = LPD270_NR_IRQS,
 514        .init_irq       = lpd270_init_irq,
 515        .handle_irq     = pxa27x_handle_irq,
 516        .init_time      = pxa_timer_init,
 517        .init_machine   = lpd270_init,
 518        .restart        = pxa_restart,
 519MACHINE_END
 520