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   1 /*
   2  *  linux/arch/arm/mach-pxa/saar.c
   3  *
   4  *  Support for the Marvell PXA930 Handheld Platform (aka SAAR)
   5  *
   6  *  Copyright (C) 2007-2008 Marvell International Ltd.
   7  *
   8  *  This program is free software; you can redistribute it and/or modify
   9  *  it under the terms of the GNU General Public License version 2 as
  10  *  publishhed by the Free Software Foundation.
  11  */
  12
  13 #include <linux/module.h>
  14 #include <linux/kernel.h>
  15 #include <linux/interrupt.h>
  16 #include <linux/init.h>
  17 #include <linux/platform_device.h>
  18 #include <linux/clk.h>
  19 #include <linux/gpio.h>
  20 #include <linux/delay.h>
  21 #include <linux/fb.h>
  22 #include <linux/i2c.h>
  23 #include <linux/smc91x.h>
  24 #include <linux/mfd/da903x.h>
  25
  26 #include <asm/mach-types.h>
  27 #include <asm/mach/arch.h>
  28 #include <mach/hardware.h>
  29 #include <mach/pxa3xx-regs.h>
  30 #include <mach/mfp-pxa930.h>
  31 #include <mach/i2c.h>
  32 #include <mach/regs-lcd.h>
  33 #include <mach/pxafb.h>
  34
  35 #include "devices.h"
  36 #include "generic.h"
  37
  38 #define GPIO_LCD_RESET  (16)
  39
  40 /* SAAR MFP configurations */
  41 static mfp_cfg_t saar_mfp_cfg[] __initdata = {
  42         /* LCD */
  43         GPIO23_LCD_DD0,
  44         GPIO24_LCD_DD1,
  45         GPIO25_LCD_DD2,
  46         GPIO26_LCD_DD3,
  47         GPIO27_LCD_DD4,
  48         GPIO28_LCD_DD5,
  49         GPIO29_LCD_DD6,
  50         GPIO44_LCD_DD7,
  51         GPIO21_LCD_CS,
  52         GPIO22_LCD_VSYNC,
  53         GPIO17_LCD_FCLK_RD,
  54         GPIO18_LCD_LCLK_A0,
  55         GPIO19_LCD_PCLK_WR,
  56         GPIO16_GPIO, /* LCD reset */
  57
  58         /* Ethernet */
  59         DF_nCS1_nCS3,
  60         GPIO97_GPIO,
  61 };
  62
  63 #define SAAR_ETH_PHYS   (0x14000000)
  64
  65 static struct resource smc91x_resources[] = {
  66         [0] = {
  67                 .start  = (SAAR_ETH_PHYS + 0x300),
  68                 .end    = (SAAR_ETH_PHYS + 0xfffff),
  69                 .flags  = IORESOURCE_MEM,
  70         },
  71         [1] = {
  72                 .start  = gpio_to_irq(mfp_to_gpio(MFP_PIN_GPIO97)),
  73                 .end    = gpio_to_irq(mfp_to_gpio(MFP_PIN_GPIO97)),
  74                 .flags  = IORESOURCE_IRQ | IORESOURCE_IRQ_HIGHEDGE,
  75         }
  76 };
  77
  78 static struct smc91x_platdata saar_smc91x_info = {
  79         .flags  = SMC91X_USE_16BIT | SMC91X_NOWAIT | SMC91X_USE_DMA,
  80 };
  81
  82 static struct platform_device smc91x_device = {
  83         .name           = "smc91x",
  84         .id             = 0,
  85         .num_resources  = ARRAY_SIZE(smc91x_resources),
  86         .resource       = smc91x_resources,
  87         .dev            = {
  88                 .platform_data = &saar_smc91x_info,
  89         },
  90 };
  91
  92 #if defined(CONFIG_FB_PXA) || (CONFIG_FB_PXA_MODULE)
  93 static uint16_t lcd_power_on[] = {
  94         /* single frame */
  95         SMART_CMD_NOOP,
  96         SMART_CMD(0x00),
  97         SMART_DELAY(0),
  98
  99         SMART_CMD_NOOP,
 100         SMART_CMD(0x00),
 101         SMART_DELAY(0),
 102
 103         SMART_CMD_NOOP,
 104         SMART_CMD(0x00),
 105         SMART_DELAY(0),
 106
 107         SMART_CMD_NOOP,
 108         SMART_CMD(0x00),
 109         SMART_DELAY(10),
 110
 111         /* calibration control */
 112         SMART_CMD(0x00),
 113         SMART_CMD(0xA4),
 114         SMART_DAT(0x80),
 115         SMART_DAT(0x01),
 116         SMART_DELAY(150),
 117
 118         /*Power-On Init sequence*/
 119         SMART_CMD(0x00),        /* output ctrl */
 120         SMART_CMD(0x01),
 121         SMART_DAT(0x01),
 122         SMART_DAT(0x00),
 123         SMART_CMD(0x00),        /* wave ctrl */
 124         SMART_CMD(0x02),
 125         SMART_DAT(0x07),
 126         SMART_DAT(0x00),
 127         SMART_CMD(0x00),
 128         SMART_CMD(0x03),        /* entry mode */
 129         SMART_DAT(0xD0),
 130         SMART_DAT(0x30),
 131         SMART_CMD(0x00),
 132         SMART_CMD(0x08),        /* display ctrl 2 */
 133         SMART_DAT(0x08),
 134         SMART_DAT(0x08),
 135         SMART_CMD(0x00),
 136         SMART_CMD(0x09),        /* display ctrl 3 */
 137         SMART_DAT(0x04),
 138         SMART_DAT(0x2F),
 139         SMART_CMD(0x00),
 140         SMART_CMD(0x0A),        /* display ctrl 4 */
 141         SMART_DAT(0x00),
 142         SMART_DAT(0x08),
 143         SMART_CMD(0x00),
 144         SMART_CMD(0x0D),        /* Frame Marker position */
 145         SMART_DAT(0x00),
 146         SMART_DAT(0x08),
 147         SMART_CMD(0x00),
 148         SMART_CMD(0x60),        /* Driver output control */
 149         SMART_DAT(0x27),
 150         SMART_DAT(0x00),
 151         SMART_CMD(0x00),
 152         SMART_CMD(0x61),        /* Base image display control */
 153         SMART_DAT(0x00),
 154         SMART_DAT(0x01),
 155         SMART_CMD(0x00),
 156         SMART_CMD(0x30),        /* Y settings 30h-3Dh */
 157         SMART_DAT(0x07),
 158         SMART_DAT(0x07),
 159         SMART_CMD(0x00),
 160         SMART_CMD(0x31),
 161         SMART_DAT(0x00),
 162         SMART_DAT(0x07),
 163         SMART_CMD(0x00),
 164         SMART_CMD(0x32),        /* Timing(3), ASW HOLD=0.5CLK */
 165         SMART_DAT(0x04),
 166         SMART_DAT(0x00),
 167         SMART_CMD(0x00),
 168         SMART_CMD(0x33),        /* Timing(4), CKV ST=0CLK, CKV ED=1CLK */
 169         SMART_DAT(0x03),
 170         SMART_DAT(0x03),
 171         SMART_CMD(0x00),
 172         SMART_CMD(0x34),
 173         SMART_DAT(0x00),
 174         SMART_DAT(0x00),
 175         SMART_CMD(0x00),
 176         SMART_CMD(0x35),
 177         SMART_DAT(0x02),
 178         SMART_DAT(0x05),
 179         SMART_CMD(0x00),
 180         SMART_CMD(0x36),
 181         SMART_DAT(0x1F),
 182         SMART_DAT(0x1F),
 183         SMART_CMD(0x00),
 184         SMART_CMD(0x37),
 185         SMART_DAT(0x07),
 186         SMART_DAT(0x07),
 187         SMART_CMD(0x00),
 188         SMART_CMD(0x38),
 189         SMART_DAT(0x00),
 190         SMART_DAT(0x07),
 191         SMART_CMD(0x00),
 192         SMART_CMD(0x39),
 193         SMART_DAT(0x04),
 194         SMART_DAT(0x00),
 195         SMART_CMD(0x00),
 196         SMART_CMD(0x3A),
 197         SMART_DAT(0x03),
 198         SMART_DAT(0x03),
 199         SMART_CMD(0x00),
 200         SMART_CMD(0x3B),
 201         SMART_DAT(0x00),
 202         SMART_DAT(0x00),
 203         SMART_CMD(0x00),
 204         SMART_CMD(0x3C),
 205         SMART_DAT(0x02),
 206         SMART_DAT(0x05),
 207         SMART_CMD(0x00),
 208         SMART_CMD(0x3D),
 209         SMART_DAT(0x1F),
 210         SMART_DAT(0x1F),
 211         SMART_CMD(0x00),        /* Display control 1 */
 212         SMART_CMD(0x07),
 213         SMART_DAT(0x00),
 214         SMART_DAT(0x01),
 215         SMART_CMD(0x00),        /* Power control 5 */
 216         SMART_CMD(0x17),
 217         SMART_DAT(0x00),
 218         SMART_DAT(0x01),
 219         SMART_CMD(0x00),        /* Power control 1 */
 220         SMART_CMD(0x10),
 221         SMART_DAT(0x10),
 222         SMART_DAT(0xB0),
 223         SMART_CMD(0x00),        /* Power control 2 */
 224         SMART_CMD(0x11),
 225         SMART_DAT(0x01),
 226         SMART_DAT(0x30),
 227         SMART_CMD(0x00),        /* Power control 3 */
 228         SMART_CMD(0x12),
 229         SMART_DAT(0x01),
 230         SMART_DAT(0x9E),
 231         SMART_CMD(0x00),        /* Power control 4 */
 232         SMART_CMD(0x13),
 233         SMART_DAT(0x17),
 234         SMART_DAT(0x00),
 235         SMART_CMD(0x00),        /* Power control 3 */
 236         SMART_CMD(0x12),
 237         SMART_DAT(0x01),
 238         SMART_DAT(0xBE),
 239         SMART_DELAY(100),
 240
 241         /* display mode : 240*320 */
 242         SMART_CMD(0x00),        /* RAM address set(H) 0*/
 243         SMART_CMD(0x20),
 244         SMART_DAT(0x00),
 245         SMART_DAT(0x00),
 246         SMART_CMD(0x00),        /* RAM address set(V)   4*/
 247         SMART_CMD(0x21),
 248         SMART_DAT(0x00),
 249         SMART_DAT(0x00),
 250         SMART_CMD(0x00),        /* Start of Window RAM address set(H) 8*/
 251         SMART_CMD(0x50),
 252         SMART_DAT(0x00),
 253         SMART_DAT(0x00),
 254         SMART_CMD(0x00),        /* End of Window RAM address set(H) 12*/
 255         SMART_CMD(0x51),
 256         SMART_DAT(0x00),
 257         SMART_DAT(0xEF),
 258         SMART_CMD(0x00),        /* Start of Window RAM address set(V) 16*/
 259         SMART_CMD(0x52),
 260         SMART_DAT(0x00),
 261         SMART_DAT(0x00),
 262         SMART_CMD(0x00),        /* End of Window RAM address set(V) 20*/
 263         SMART_CMD(0x53),
 264         SMART_DAT(0x01),
 265         SMART_DAT(0x3F),
 266         SMART_CMD(0x00),        /* Panel interface control 1 */
 267         SMART_CMD(0x90),
 268         SMART_DAT(0x00),
 269         SMART_DAT(0x1A),
 270         SMART_CMD(0x00),        /* Panel interface control 2 */
 271         SMART_CMD(0x92),
 272         SMART_DAT(0x04),
 273         SMART_DAT(0x00),
 274         SMART_CMD(0x00),        /* Panel interface control 3 */
 275         SMART_CMD(0x93),
 276         SMART_DAT(0x00),
 277         SMART_DAT(0x05),
 278         SMART_DELAY(20),
 279 };
 280
 281 static uint16_t lcd_panel_on[] = {
 282         SMART_CMD(0x00),
 283         SMART_CMD(0x07),
 284         SMART_DAT(0x00),
 285         SMART_DAT(0x21),
 286         SMART_DELAY(1),
 287
 288         SMART_CMD(0x00),
 289         SMART_CMD(0x07),
 290         SMART_DAT(0x00),
 291         SMART_DAT(0x61),
 292         SMART_DELAY(100),
 293
 294         SMART_CMD(0x00),
 295         SMART_CMD(0x07),
 296         SMART_DAT(0x01),
 297         SMART_DAT(0x73),
 298         SMART_DELAY(1),
 299 };
 300
 301 static uint16_t lcd_panel_off[] = {
 302         SMART_CMD(0x00),
 303         SMART_CMD(0x07),
 304         SMART_DAT(0x00),
 305         SMART_DAT(0x72),
 306         SMART_DELAY(40),
 307
 308         SMART_CMD(0x00),
 309         SMART_CMD(0x07),
 310         SMART_DAT(0x00),
 311         SMART_DAT(0x01),
 312         SMART_DELAY(1),
 313
 314         SMART_CMD(0x00),
 315         SMART_CMD(0x07),
 316         SMART_DAT(0x00),
 317         SMART_DAT(0x00),
 318         SMART_DELAY(1),
 319 };
 320
 321 static uint16_t lcd_power_off[] = {
 322         SMART_CMD(0x00),
 323         SMART_CMD(0x10),
 324         SMART_DAT(0x00),
 325         SMART_DAT(0x80),
 326
 327         SMART_CMD(0x00),
 328         SMART_CMD(0x11),
 329         SMART_DAT(0x01),
 330         SMART_DAT(0x60),
 331
 332         SMART_CMD(0x00),
 333         SMART_CMD(0x12),
 334         SMART_DAT(0x01),
 335         SMART_DAT(0xAE),
 336         SMART_DELAY(40),
 337
 338         SMART_CMD(0x00),
 339         SMART_CMD(0x10),
 340         SMART_DAT(0x00),
 341         SMART_DAT(0x00),
 342 };
 343
 344 static uint16_t update_framedata[] = {
 345         /* set display ram: 240*320 */
 346         SMART_CMD(0x00), /* RAM address set(H) 0*/
 347         SMART_CMD(0x20),
 348         SMART_DAT(0x00),
 349         SMART_DAT(0x00),
 350         SMART_CMD(0x00), /* RAM address set(V) 4*/
 351         SMART_CMD(0x21),
 352         SMART_DAT(0x00),
 353         SMART_DAT(0x00),
 354         SMART_CMD(0x00), /* Start of Window RAM address set(H) 8 */
 355         SMART_CMD(0x50),
 356         SMART_DAT(0x00),
 357         SMART_DAT(0x00),
 358         SMART_CMD(0x00), /* End of Window RAM address set(H) 12 */
 359         SMART_CMD(0x51),
 360         SMART_DAT(0x00),
 361         SMART_DAT(0xEF),
 362         SMART_CMD(0x00), /* Start of Window RAM address set(V) 16 */
 363         SMART_CMD(0x52),
 364         SMART_DAT(0x00),
 365         SMART_DAT(0x00),
 366         SMART_CMD(0x00), /* End of Window RAM address set(V) 20 */
 367         SMART_CMD(0x53),
 368         SMART_DAT(0x01),
 369         SMART_DAT(0x3F),
 370
 371         /* wait for vsync cmd before transferring frame data */
 372         SMART_CMD_WAIT_FOR_VSYNC,
 373
 374         /* write ram */
 375         SMART_CMD(0x00),
 376         SMART_CMD(0x22),
 377
 378         /* write frame data */
 379         SMART_CMD_WRITE_FRAME,
 380 };
 381
 382 static void ltm022a97a_lcd_power(int on, struct fb_var_screeninfo *var)
 383 {
 384         static int pin_requested = 0;
 385         struct fb_info *info = container_of(var, struct fb_info, var);
 386         int err;
 387
 388         if (!pin_requested) {
 389                 err = gpio_request(GPIO_LCD_RESET, "lcd reset");
 390                 if (err) {
 391                         pr_err("failed to request gpio for LCD reset\n");
 392                         return;
 393                 }
 394
 395                 gpio_direction_output(GPIO_LCD_RESET, 0);
 396                 pin_requested = 1;
 397         }
 398
 399         if (on) {
 400                 gpio_set_value(GPIO_LCD_RESET, 0); msleep(100);
 401                 gpio_set_value(GPIO_LCD_RESET, 1); msleep(10);
 402
 403                 pxafb_smart_queue(info, ARRAY_AND_SIZE(lcd_power_on));
 404                 pxafb_smart_queue(info, ARRAY_AND_SIZE(lcd_panel_on));
 405         } else {
 406                 pxafb_smart_queue(info, ARRAY_AND_SIZE(lcd_panel_off));
 407                 pxafb_smart_queue(info, ARRAY_AND_SIZE(lcd_power_off));
 408         }
 409
 410         err = pxafb_smart_flush(info);
 411         if (err)
 412                 pr_err("%s: timed out\n", __func__);
 413 }
 414
 415 static void ltm022a97a_update(struct fb_info *info)
 416 {
 417         pxafb_smart_queue(info, ARRAY_AND_SIZE(update_framedata));
 418         pxafb_smart_flush(info);
 419 }
 420
 421 static struct pxafb_mode_info toshiba_ltm022a97a_modes[] = {
 422         [0] = {
 423                 .xres                   = 240,
 424                 .yres                   = 320,
 425                 .bpp                    = 16,
 426                 .a0csrd_set_hld         = 30,
 427                 .a0cswr_set_hld         = 30,
 428                 .wr_pulse_width         = 30,
 429                 .rd_pulse_width         = 30,
 430                 .op_hold_time           = 30,
 431                 .cmd_inh_time           = 60,
 432
 433                 /* L_LCLK_A0 and L_LCLK_RD active low */
 434                 .sync                   = FB_SYNC_HOR_HIGH_ACT |
 435                                           FB_SYNC_VERT_HIGH_ACT,
 436         },
 437 };
 438
 439 static struct pxafb_mach_info saar_lcd_info = {
 440         .modes                  = toshiba_ltm022a97a_modes,
 441         .num_modes              = 1,
 442         .lcd_conn               = LCD_SMART_PANEL_8BPP | LCD_PCLK_EDGE_FALL,
 443         .pxafb_lcd_power        = ltm022a97a_lcd_power,
 444         .smart_update           = ltm022a97a_update,
 445 };
 446
 447 static void __init saar_init_lcd(void)
 448 {
 449         set_pxa_fb_info(&saar_lcd_info);
 450 }
 451 #else
 452 static inline void saar_init_lcd(void) {}
 453 #endif
 454
 455 #if defined(CONFIG_I2C_PXA) || defined(CONFIG_I2C_PXA_MODULE)
 456 static struct da903x_subdev_info saar_da9034_subdevs[] = {
 457         [0] = {
 458                 .name           = "da903x-backlight",
 459                 .id             = DA9034_ID_WLED,
 460         },
 461 };
 462
 463 static struct da903x_platform_data saar_da9034_info = {
 464         .num_subdevs    = ARRAY_SIZE(saar_da9034_subdevs),
 465         .subdevs        = saar_da9034_subdevs,
 466 };
 467
 468 static struct i2c_board_info saar_i2c_info[] = {
 469         [0] = {
 470                 .type           = "da9034",
 471                 .addr           = 0x34,
 472                 .platform_data  = &saar_da9034_info,
 473                 .irq            = gpio_to_irq(mfp_to_gpio(MFP_PIN_GPIO83)),
 474         },
 475 };
 476
 477 static void __init saar_init_i2c(void)
 478 {
 479         pxa_set_i2c_info(NULL);
 480         i2c_register_board_info(0, ARRAY_AND_SIZE(saar_i2c_info));
 481 }
 482 #else
 483 static inline void saar_init_i2c(void) {}
 484 #endif
 485 static void __init saar_init(void)
 486 {
 487         /* initialize MFP configurations */
 488         pxa3xx_mfp_config(ARRAY_AND_SIZE(saar_mfp_cfg));
 489
 490         platform_device_register(&smc91x_device);
 491
 492         saar_init_i2c();
 493         saar_init_lcd();
 494 }
 495
 496 MACHINE_START(SAAR, "PXA930 Handheld Platform (aka SAAR)")
 497         /* Maintainer: Eric Miao <eric.miao@marvell.com> */
 498         .phys_io        = 0x40000000,
 499         .boot_params    = 0xa0000100,
 500         .io_pg_offst    = (io_p2v(0x40000000) >> 18) & 0xfffc,
 501         .map_io         = pxa_map_io,
 502         .init_irq       = pxa3xx_init_irq,
 503         .timer          = &pxa_timer,
 504         .init_machine   = saar_init,
 505 MACHINE_END