target/linux/xburst/patches-2.6.35/021-add-n516-board-support.patch

   1 From c260fa2e5fe9699824190555e075d6c1157d5f36 Mon Sep 17 00:00:00 2001
   2 From: Lars-Peter Clausen <lars@metafoo.de>
   3 Date: Sat, 24 Apr 2010 17:25:01 +0200
   4 Subject: [PATCH] Add n516 board support
   5
   6 ---
   7  arch/mips/include/asm/mach-jz4740/board-n516.h |   39 +++
   8  arch/mips/jz4740/Kconfig                       |    4 +
   9  arch/mips/jz4740/Makefile                      |    1 +
  10  arch/mips/jz4740/board-n516-display.c          |  394 ++++++++++++++++++++++++
  11  arch/mips/jz4740/board-n516.c                  |  203 ++++++++++++
  12  5 files changed, 641 insertions(+), 0 deletions(-)
  13  create mode 100644 arch/mips/include/asm/mach-jz4740/board-n516.h
  14  create mode 100644 arch/mips/jz4740/board-n516-display.c
  15  create mode 100644 arch/mips/jz4740/board-n516.c
  16
  17 --- /dev/null
  18 +++ b/arch/mips/include/asm/mach-jz4740/board-n516.h
  19 @@ -0,0 +1,39 @@
  20 +/*
  21 + *  linux/include/asm-mips/mach-jz4740/board-n516.h
  22 + *
  23 + *  JZ4730-based N516 board definition.
  24 + *
  25 + *  Copyright (C) 2009, Yauhen Kharuzhy <jekhor@gmail.com>
  26 + *
  27 + * This program is free software; you can redistribute it and/or modify
  28 + * it under the terms of the GNU General Public License as published by
  29 + * the Free Software Foundation; either version 2 of the License, or
  30 + * (at your option) any later version.
  31 + */
  32 +
  33 +#ifndef __ASM_JZ4740_N516_H__
  34 +#define __ASM_JZ4740_N516_H__
  35 +
  36 +#include <asm/mach-jz4740/gpio.h>
  37 +
  38 +/*
  39 + * GPIO
  40 + */
  41 +#define GPIO_SD_VCC_EN_N       JZ_GPIO_PORTD(17)
  42 +#define GPIO_SD_CD_N           JZ_GPIO_PORTD(7)
  43 +#define GPIO_SD_WP             JZ_GPIO_PORTD(15)
  44 +#define GPIO_USB_DETECT                JZ_GPIO_PORTD(19)
  45 +#define GPIO_CHARG_STAT_N      JZ_GPIO_PORTD(16)
  46 +#define GPIO_LED_ENABLE                JZ_GPIO_PORTD(28)
  47 +#define GPIO_LPC_INT           JZ_GPIO_PORTD(14)
  48 +#define GPIO_HPHONE_DETECT     JZ_GPIO_PORTD(20)
  49 +#define GPIO_SPEAKER_ENABLE    JZ_GPIO_PORTD(21)
  50 +
  51 +/* Display */
  52 +#define GPIO_DISPLAY_RST_L     JZ_GPIO_PORTB(18)
  53 +#define GPIO_DISPLAY_RDY       JZ_GPIO_PORTB(17)
  54 +#define GPIO_DISPLAY_STBY      JZ_GPIO_PORTC(22)
  55 +#define GPIO_DISPLAY_ERR       JZ_GPIO_PORTC(23)
  56 +#define GPIO_DISPLAY_OFF_N     JZ_GPIO_PORTD(1)
  57 +
  58 +#endif /* __ASM_JZ4740_N516_H__ */
  59 --- a/arch/mips/jz4740/Kconfig
  60 +++ b/arch/mips/jz4740/Kconfig
  61 @@ -6,6 +6,10 @@ choice
  62  config JZ4740_QI_LB60
  63         bool "Qi Hardware Ben NanoNote"
  64
  65 +config JZ4740_N516
  66 +       bool "Hanvon n516 eBook reader"
  67 +       select SOC_JZ4740
  68 +
  69  endchoice
  70
  71  config HAVE_PWM
  72 --- a/arch/mips/jz4740/Makefile
  73 +++ b/arch/mips/jz4740/Makefile
  74 @@ -12,6 +12,7 @@ obj-$(CONFIG_DEBUG_FS) += clock-debugfs.
  75  # board specific support
  76
  77  obj-$(CONFIG_JZ4740_QI_LB60)   += board-qi_lb60.o
  78 +obj-$(CONFIG_JZ4740_N516)      += board-n516.o board-n516-display.o
  79
  80  # PM support
  81
  82 --- /dev/null
  83 +++ b/arch/mips/jz4740/board-n516-display.c
  84 @@ -0,0 +1,394 @@
  85 +/*
  86 + * board-n516-display.c -- Platform device for N516 display
  87 + *
  88 + * Copyright (C) 2009, Yauhen Kharuzhy <jekhor@gmail.com>
  89 + *
  90 + * This file is subject to the terms and conditions of the GNU General Public
  91 + * License. See the file COPYING in the main directory of this archive for
  92 + * more details.
  93 + */
  94 +
  95 +#include <linux/module.h>
  96 +#include <linux/kernel.h>
  97 +#include <linux/errno.h>
  98 +#include <linux/string.h>
  99 +#include <linux/delay.h>
 100 +#include <linux/interrupt.h>
 101 +#include <linux/fb.h>
 102 +#include <linux/init.h>
 103 +#include <linux/platform_device.h>
 104 +#include <linux/irq.h>
 105 +#include <linux/gpio.h>
 106 +
 107 +#include <asm/mach-jz4740/jz4740_fb.h>
 108 +
 109 +#include <asm/mach-jz4740/platform.h>
 110 +#include <asm/mach-jz4740/board-n516.h>
 111 +
 112 +#include <video/metronomefb.h>
 113 +#include <linux/console.h>
 114 +
 115 +static struct fb_videomode n516_fb_modes[] = {
 116 +       [0] = {
 117 +               .name           = "Metronome 800x600",
 118 +               .refresh        = 50,
 119 +               .xres           = 400,
 120 +               .yres           = 624,
 121 +               .hsync_len      = 31,
 122 +               .vsync_len      = 23,
 123 +               .right_margin   = 31,
 124 +               .left_margin    = 5,
 125 +               .upper_margin   = 1,
 126 +               .lower_margin   = 2,
 127 +               .sync = FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT,
 128 +       },
 129 +};
 130 +
 131 +static struct jz4740_fb_platform_data n516_fb_pdata = {
 132 +       .num_modes      = ARRAY_SIZE(n516_fb_modes),
 133 +       .modes          = n516_fb_modes,
 134 +       .bpp            = 16,
 135 +       .lcd_type       = JZ_LCD_TYPE_GENERIC_16_BIT,
 136 +};
 137 +
 138 +struct n516_board_info {
 139 +       uint8_t *metromem;
 140 +       size_t wfm_size;
 141 +       struct fb_info *host_fbinfo; /* the host LCD controller's fbi */
 142 +       unsigned int fw;
 143 +       unsigned int fh;
 144 +};
 145 +
 146 +static struct platform_device *n516_device;
 147 +static struct n516_board_info n516_board_info;
 148 +
 149 +static int metronome_gpios[] = {
 150 +       GPIO_DISPLAY_STBY,
 151 +       GPIO_DISPLAY_RST_L,
 152 +       GPIO_DISPLAY_RDY,
 153 +       GPIO_DISPLAY_ERR,
 154 +/*     GPIO_DISPLAY_OFF_N,*/
 155 +};
 156 +
 157 +static const char *metronome_gpio_names[] = {
 158 +       "Metronome STDBY",
 159 +       "Metronome RST",
 160 +       "Metronome RDY",
 161 +       "Metronome ERR",
 162 +/*     "Metronone OFF",*/
 163 +};
 164 +
 165 +static int n516_enable_hostfb(bool enable)
 166 +{
 167 +       int ret;
 168 +       int blank = enable ? FB_BLANK_UNBLANK : FB_BLANK_POWERDOWN;
 169 +
 170 +       acquire_console_sem();
 171 +       ret = fb_blank(n516_board_info.host_fbinfo, blank);
 172 +       release_console_sem();
 173 +
 174 +       return ret;
 175 +}
 176 +
 177 +static int n516_init_metronome_gpios(struct metronomefb_par *par)
 178 +{
 179 +       int i;
 180 +       int ret;
 181 +
 182 +       for (i = 0; i < ARRAY_SIZE(metronome_gpios); ++i) {
 183 +               ret = gpio_request(metronome_gpios[i], metronome_gpio_names[i]);
 184 +               if (ret)
 185 +                       goto err;
 186 +       }
 187 +
 188 +       gpio_direction_output(GPIO_DISPLAY_OFF_N, 0);
 189 +       gpio_direction_output(GPIO_DISPLAY_RST_L, 0);
 190 +       gpio_direction_output(GPIO_DISPLAY_STBY, 0);
 191 +       gpio_direction_input(GPIO_DISPLAY_RDY);
 192 +       gpio_direction_input(GPIO_DISPLAY_ERR);
 193 +
 194 +       return 0;
 195 +err:
 196 +       for (--i; i >= 0; --i)
 197 +               gpio_free(metronome_gpios[i]);
 198 +
 199 +       return ret;
 200 +}
 201 +
 202 +static int n516_share_video_mem(struct fb_info *info)
 203 +{
 204 +       int ret;
 205 +
 206 +       dev_dbg(&n516_device->dev, "ENTER %s\n", __func__);
 207 +       dev_dbg(&n516_device->dev, "%s, info->var.xres = %u, info->var.yres = %u\n", __func__, info->var.xres, info->var.yres);
 208 +       /* rough check if this is our desired fb and not something else */
 209 +       if ((info->var.xres != n516_fb_pdata.modes[0].xres)
 210 +               || (info->var.yres != n516_fb_pdata.modes[0].yres))
 211 +               return 0;
 212 +
 213 +       /* we've now been notified that we have our new fb */
 214 +       n516_board_info.metromem = info->screen_base;
 215 +       n516_board_info.host_fbinfo = info;
 216 +
 217 +       n516_enable_hostfb(false);
 218 +       /* try to refcount host drv since we are the consumer after this */
 219 +       if (!try_module_get(info->fbops->owner))
 220 +               return -ENODEV;
 221 +
 222 +       /* this _add binds metronomefb to n516. metronomefb refcounts n516 */
 223 +       ret = platform_device_add(n516_device);
 224 +
 225 +       if (ret) {
 226 +               platform_device_put(n516_device);
 227 +               return ret;
 228 +       }
 229 +
 230 +       /* request our platform independent driver */
 231 +       request_module("metronomefb");
 232 +
 233 +       return 0;
 234 +}
 235 +
 236 +static int n516_unshare_video_mem(struct fb_info *info)
 237 +{
 238 +       dev_dbg(&n516_device->dev, "ENTER %s\n", __func__);
 239 +
 240 +       if (info != n516_board_info.host_fbinfo)
 241 +               return 0;
 242 +
 243 +       module_put(n516_board_info.host_fbinfo->fbops->owner);
 244 +       return 0;
 245 +}
 246 +
 247 +static int n516_fb_notifier_callback(struct notifier_block *self,
 248 +                                unsigned long event, void *data)
 249 +{
 250 +       struct fb_event *evdata = data;
 251 +       struct fb_info *info = evdata->info;
 252 +
 253 +       dev_dbg(&n516_device->dev, "ENTER %s\n", __func__);
 254 +
 255 +       if (event == FB_EVENT_FB_REGISTERED)
 256 +               return n516_share_video_mem(info);
 257 +       else if (event == FB_EVENT_FB_UNREGISTERED)
 258 +               return n516_unshare_video_mem(info);
 259 +
 260 +       return 0;
 261 +}
 262 +
 263 +static struct notifier_block n516_fb_notif = {
 264 +       .notifier_call = n516_fb_notifier_callback,
 265 +};
 266 +
 267 +/* this gets called as part of our init. these steps must be done now so
 268 + * that we can use set_pxa_fb_info */
 269 +static void __init n516_presetup_fb(void)
 270 +{
 271 +       int padding_size;
 272 +       int totalsize;
 273 +
 274 +       /* the frame buffer is divided as follows:
 275 +       command | CRC | padding
 276 +       16kb waveform data | CRC | padding
 277 +       image data | CRC
 278 +       */
 279 +
 280 +       n516_board_info.fw = 800;
 281 +       n516_board_info.fh = 624;
 282 +
 283 +       /* waveform must be 16k + 2 for checksum */
 284 +       n516_board_info.wfm_size = roundup(16*1024 + 2, n516_board_info.fw);
 285 +
 286 +       padding_size = PAGE_SIZE + (4 * n516_board_info.fw);
 287 +
 288 +       /* total is 1 cmd , 1 wfm, padding and image */
 289 +       totalsize = n516_board_info.fw + n516_board_info.wfm_size;
 290 +       totalsize += padding_size + (n516_board_info.fw*n516_board_info.fh);
 291 +
 292 +       /* save this off because we're manipulating fw after this and
 293 +        * we'll need it when we're ready to setup the framebuffer */
 294 +
 295 +       /* the reason we do this adjustment is because we want to acquire
 296 +        * more framebuffer memory without imposing custom awareness on the
 297 +        * underlying driver */
 298 +       n516_fb_pdata.modes[0].yres = DIV_ROUND_UP(totalsize, n516_board_info.fw);
 299 +
 300 +       jz4740_framebuffer_device.dev.platform_data = &n516_fb_pdata;
 301 +       platform_device_register(&jz4740_framebuffer_device);
 302 +}
 303 +
 304 +/* this gets called by metronomefb as part of its init, in our case, we
 305 + * have already completed initial framebuffer init in presetup_fb so we
 306 + * can just setup the fb access pointers */
 307 +static int n516_setup_fb(struct metronomefb_par *par)
 308 +{
 309 +       /* metromem was set up by the notifier in share_video_mem so now
 310 +        * we can use its value to calculate the other entries */
 311 +       par->metromem_cmd = (struct metromem_cmd *) n516_board_info.metromem;
 312 +       par->metromem_wfm = n516_board_info.metromem + n516_board_info.fw;
 313 +       par->metromem_img = par->metromem_wfm + n516_board_info.wfm_size;
 314 +       par->metromem_img_csum = (u16 *) (par->metromem_img + (n516_board_info.fw * n516_board_info.fh));
 315 +       par->metromem_dma = n516_board_info.host_fbinfo->fix.smem_start;
 316 +
 317 +       return 0;
 318 +}
 319 +
 320 +static int n516_get_panel_type(void)
 321 +{
 322 +       return 5;
 323 +}
 324 +
 325 +static irqreturn_t n516_handle_irq(int irq, void *dev_id)
 326 +{
 327 +       struct metronomefb_par *par = dev_id;
 328 +
 329 +       dev_dbg(&par->pdev->dev, "Metronome IRQ! RDY=%d\n",     gpio_get_value(GPIO_DISPLAY_RDY));
 330 +       wake_up_all(&par->waitq);
 331 +
 332 +       return IRQ_HANDLED;
 333 +}
 334 +
 335 +static void n516_power_ctl(struct metronomefb_par *par, int cmd)
 336 +{
 337 +       switch (cmd) {
 338 +       case METRONOME_POWER_OFF:
 339 +               gpio_set_value(GPIO_DISPLAY_OFF_N, 1);
 340 +               n516_enable_hostfb(false);
 341 +               break;
 342 +       case METRONOME_POWER_ON:
 343 +               gpio_set_value(GPIO_DISPLAY_OFF_N, 0);
 344 +               n516_enable_hostfb(true);
 345 +               break;
 346 +       }
 347 +}
 348 +
 349 +static int n516_get_rdy(struct metronomefb_par *par)
 350 +{
 351 +       return gpio_get_value(GPIO_DISPLAY_RDY);
 352 +}
 353 +
 354 +static int n516_get_err(struct metronomefb_par *par)
 355 +{
 356 +       return gpio_get_value(GPIO_DISPLAY_ERR);
 357 +}
 358 +
 359 +static int n516_setup_irq(struct fb_info *info)
 360 +{
 361 +       int ret;
 362 +
 363 +       dev_dbg(&n516_device->dev, "ENTER %s\n", __func__);
 364 +
 365 +       ret = request_irq(gpio_to_irq(GPIO_DISPLAY_RDY), n516_handle_irq,
 366 +                               IRQF_TRIGGER_RISING,
 367 +                               "n516", info->par);
 368 +       if (ret)
 369 +               dev_err(&n516_device->dev, "request_irq failed: %d\n", ret);
 370 +
 371 +       return ret;
 372 +}
 373 +
 374 +static void n516_set_rst(struct metronomefb_par *par, int state)
 375 +{
 376 +       dev_dbg(&n516_device->dev, "ENTER %s, RDY=%d\n", __func__, gpio_get_value(GPIO_DISPLAY_RDY));
 377 +       if (state)
 378 +               gpio_set_value(GPIO_DISPLAY_RST_L, 1);
 379 +       else
 380 +               gpio_set_value(GPIO_DISPLAY_RST_L, 0);
 381 +}
 382 +
 383 +static void n516_set_stdby(struct metronomefb_par *par, int state)
 384 +{
 385 +       dev_dbg(&n516_device->dev, "ENTER %s, RDY=%d\n", __func__, gpio_get_value(GPIO_DISPLAY_RDY));
 386 +       if (state)
 387 +               gpio_set_value(GPIO_DISPLAY_STBY, 1);
 388 +       else
 389 +               gpio_set_value(GPIO_DISPLAY_STBY, 0);
 390 +}
 391 +
 392 +static int n516_wait_event(struct metronomefb_par *par)
 393 +{
 394 +       unsigned long timeout = jiffies + HZ / 20;
 395 +
 396 +       dev_dbg(&n516_device->dev, "ENTER1 %s, RDY=%d\n",
 397 +                       __func__, gpio_get_value(GPIO_DISPLAY_RDY));
 398 +       while (n516_get_rdy(par) && time_before(jiffies, timeout))
 399 +               schedule();
 400 +
 401 +       dev_dbg(&n516_device->dev, "ENTER2 %s, RDY=%d\n",
 402 +                       __func__, gpio_get_value(GPIO_DISPLAY_RDY));
 403 +       return wait_event_timeout(par->waitq,
 404 +                       n516_get_rdy(par), HZ * 2) ? 0 : -EIO;
 405 +}
 406 +
 407 +static int n516_wait_event_intr(struct metronomefb_par *par)
 408 +{
 409 +       unsigned long timeout = jiffies + HZ/20;
 410 +
 411 +       dev_dbg(&n516_device->dev, "ENTER1 %s, RDY=%d\n",
 412 +                       __func__, gpio_get_value(GPIO_DISPLAY_RDY));
 413 +       while (n516_get_rdy(par) && time_before(jiffies, timeout))
 414 +               schedule();
 415 +
 416 +       dev_dbg(&n516_device->dev, "ENTER2 %s, RDY=%d\n",
 417 +                       __func__, gpio_get_value(GPIO_DISPLAY_RDY));
 418 +       return wait_event_interruptible_timeout(par->waitq,
 419 +                                       n516_get_rdy(par), HZ * 2) ? 0 : -EIO;
 420 +}
 421 +
 422 +static void n516_cleanup(struct metronomefb_par *par)
 423 +{
 424 +       int i;
 425 +
 426 +       free_irq(gpio_to_irq(GPIO_DISPLAY_RDY), par);
 427 +       for (i = 0; i < ARRAY_SIZE(metronome_gpios); ++i)
 428 +               gpio_free(metronome_gpios[i]);
 429 +}
 430 +
 431 +static struct metronome_board n516_board __initdata = {
 432 +       .owner                  = THIS_MODULE,
 433 +       .power_ctl              = n516_power_ctl,
 434 +       .setup_irq              = n516_setup_irq,
 435 +       .setup_io               = n516_init_metronome_gpios,
 436 +       .setup_fb               = n516_setup_fb,
 437 +       .set_rst                = n516_set_rst,
 438 +       .get_err                = n516_get_err,
 439 +       .get_rdy                = n516_get_rdy,
 440 +       .set_stdby              = n516_set_stdby,
 441 +       .met_wait_event         = n516_wait_event,
 442 +       .met_wait_event_intr    = n516_wait_event_intr,
 443 +       .get_panel_type         = n516_get_panel_type,
 444 +       .cleanup                = n516_cleanup,
 445 +};
 446 +
 447 +static int __init n516_init(void)
 448 +{
 449 +       int ret;
 450 +
 451 +       /* Keep the metronome off, until its driver is loaded */
 452 +       ret = gpio_request(GPIO_DISPLAY_OFF_N, "Display off");
 453 +       if (ret)
 454 +               return ret;
 455 +
 456 +       gpio_direction_output(GPIO_DISPLAY_OFF_N, 1);
 457 +
 458 +       /* before anything else, we request notification for any fb
 459 +        * creation events */
 460 +       fb_register_client(&n516_fb_notif);
 461 +
 462 +       n516_device = platform_device_alloc("metronomefb", -1);
 463 +       if (!n516_device)
 464 +               return -ENOMEM;
 465 +
 466 +       /* the n516_board that will be seen by metronomefb is a copy */
 467 +       platform_device_add_data(n516_device, &n516_board,
 468 +                                       sizeof(n516_board));
 469 +
 470 +       n516_presetup_fb();
 471 +
 472 +       return 0;
 473 +}
 474 +module_init(n516_init);
 475 +
 476 +MODULE_DESCRIPTION("board driver for n516 display");
 477 +MODULE_AUTHOR("Yauhen Kharuzhy");
 478 +MODULE_LICENSE("GPL");
 479 --- /dev/null
 480 +++ b/arch/mips/jz4740/board-n516.c
 481 @@ -0,0 +1,203 @@
 482 +/*
 483 + * linux/arch/mips/jz4740/board-516.c
 484 + *
 485 + * JZ4740 n516 board setup routines.
 486 + *
 487 + * Copyright (c) 2009, Yauhen Kharuzhy <jekhor@gmail.com>
 488 + *
 489 + * This program is free software; you can redistribute it and/or modify
 490 + * it under the terms of the GNU General Public License as published by
 491 + * the Free Software Foundation; either version 2 of the License, or
 492 + * (at your option) any later version.
 493 + */
 494 +
 495 +#include <linux/init.h>
 496 +#include <linux/sched.h>
 497 +#include <linux/ioport.h>
 498 +#include <linux/mm.h>
 499 +#include <linux/console.h>
 500 +#include <linux/delay.h>
 501 +#include <linux/i2c.h>
 502 +#include <linux/platform_device.h>
 503 +#include <linux/mtd/mtd.h>
 504 +#include <linux/leds.h>
 505 +
 506 +#include <linux/power_supply.h>
 507 +#include <linux/power/gpio-charger.h>
 508 +
 509 +#include <linux/i2c.h>
 510 +#include <linux/i2c-gpio.h>
 511 +
 512 +#include <asm/mach-jz4740/jz4740_mmc.h>
 513 +#include <asm/mach-jz4740/jz4740_nand.h>
 514 +
 515 +#include <asm/mach-jz4740/board-n516.h>
 516 +#include <asm/mach-jz4740/platform.h>
 517 +
 518 +#include "clock.h"
 519 +
 520 +static long n516_panic_blink(long time)
 521 +{
 522 +       gpio_set_value(GPIO_LED_ENABLE, 1);
 523 +       mdelay(200);
 524 +       gpio_set_value(GPIO_LED_ENABLE, 0);
 525 +       mdelay(200);
 526 +
 527 +       return 400;
 528 +}
 529 +
 530 +static void __init board_gpio_setup(void)
 531 +{
 532 +/*     jz_gpio_enable_pullup(JZ_GPIO_PORTD(23));
 533 +       jz_gpio_enable_pullup(JZ_GPIO_PORTD(24));*/
 534 +}
 535 +
 536 +static struct i2c_gpio_platform_data n516_i2c_pdata = {
 537 +       .sda_pin = JZ_GPIO_PORTD(23),
 538 +       .scl_pin = JZ_GPIO_PORTD(24),
 539 +       .udelay = 2,
 540 +       .timeout = 3 * HZ,
 541 +};
 542 +
 543 +static struct platform_device n516_i2c_device = {
 544 +       .name = "i2c-gpio",
 545 +       .id = -1,
 546 +       .dev = {
 547 +               .platform_data = &n516_i2c_pdata,
 548 +       },
 549 +};
 550 +
 551 +static const struct i2c_board_info n516_i2c_board_info[] = {
 552 +       {
 553 +               .type           = "LPC524",
 554 +               .addr           = 0x54,
 555 +       },
 556 +       {
 557 +               .type           = "lm75a",
 558 +               .addr           = 0x48,
 559 +       }
 560 +};
 561 +
 562 +static struct jz4740_mmc_platform_data n516_mmc_pdata = {
 563 +       .gpio_card_detect       = GPIO_SD_CD_N,
 564 +       .card_detect_active_low = 1,
 565 +       .gpio_read_only         = -1,
 566 +       .gpio_power             = GPIO_SD_VCC_EN_N,
 567 +       .power_active_low = 1,
 568 +};
 569 +
 570 +static struct gpio_led n516_leds[] = {
 571 +       {
 572 +               .name = "n516:blue:power",
 573 +               .gpio = GPIO_LED_ENABLE,
 574 +               .default_state = LEDS_GPIO_DEFSTATE_ON,
 575 +               .default_trigger = "nand-disk",
 576 +       }
 577 +};
 578 +
 579 +static struct gpio_led_platform_data n516_leds_pdata = {
 580 +       .leds = n516_leds,
 581 +       .num_leds = ARRAY_SIZE(n516_leds),
 582 +};
 583 +
 584 +static struct platform_device n516_leds_device = {
 585 +       .name = "leds-gpio",
 586 +       .id = -1,
 587 +       .dev = {
 588 +               .platform_data = &n516_leds_pdata,
 589 +       },
 590 +};
 591 +
 592 +static struct mtd_partition n516_partitions[] = {
 593 +       { .name = "NAND BOOT partition",
 594 +         .offset = 0 * 0x100000,
 595 +         .size = 4 * 0x100000,
 596 +       },
 597 +       { .name = "NAND KERNEL partition",
 598 +         .offset = 4 * 0x100000,
 599 +         .size = 4 * 0x100000,
 600 +       },
 601 +       { .name = "NAND ROOTFS partition",
 602 +         .offset = 8 * 0x100000,
 603 +         .size = 504 * 0x100000,
 604 +       },
 605 +};
 606 +
 607 +static struct nand_ecclayout n516_ecclayout = {
 608 +/*     .eccbytes = 36,
 609 +       .eccpos = {
 610 +                6,  7,  8,  9, 10, 11, 12, 13, 14,
 611 +               15, 16, 17, 18, 19, 20, 21, 22, 23,
 612 +               24, 25, 26, 27, 28, 29, 30, 31, 32,
 613 +               33, 34, 35, 36, 37, 38, 39, 40, 41,
 614 +       },*/
 615 +       .oobfree = {
 616 +               {
 617 +                       .offset = 2,
 618 +                       .length = 4
 619 +               },
 620 +               {
 621 +                       .offset = 42,
 622 +                       .length = 22,
 623 +               }
 624 +       }
 625 +};
 626 +
 627 +static struct jz_nand_platform_data n516_nand_pdata = {
 628 +       .ecc_layout = &n516_ecclayout,
 629 +       .partitions = n516_partitions,
 630 +       .num_partitions = ARRAY_SIZE(n516_partitions),
 631 +       .busy_gpio = 94,
 632 +};
 633 +
 634 +static char *n516_batteries[] = {
 635 +       "n516_battery",
 636 +};
 637 +
 638 +static struct gpio_charger_platform_data n516_charger_pdata = {
 639 +       .name = "usb",
 640 +       .type = POWER_SUPPLY_TYPE_USB,
 641 +       .gpio = GPIO_USB_DETECT,
 642 +       .gpio_active_low = 1,
 643 +       .batteries = n516_batteries,
 644 +       .num_batteries = ARRAY_SIZE(n516_batteries),
 645 +};
 646 +
 647 +static struct platform_device n516_charger_device = {
 648 +       .name = "gpio-charger",
 649 +       .dev = {
 650 +               .platform_data = &n516_charger_pdata,
 651 +       },
 652 +};
 653 +
 654 +static struct platform_device *n516_devices[] __initdata = {
 655 +       &jz4740_nand_device,
 656 +       &n516_leds_device,
 657 +       &jz4740_mmc_device,
 658 +       &jz4740_i2s_device,
 659 +       &jz4740_codec_device,
 660 +       &jz4740_rtc_device,
 661 +       &jz4740_udc_device,
 662 +       &n516_i2c_device,
 663 +       &n516_charger_device,
 664 +};
 665 +
 666 +struct jz4740_clock_board_data jz4740_clock_bdata = {
 667 +       .ext_rate = 12000000,
 668 +       .rtc_rate = 32768,
 669 +};
 670 +
 671 +extern int jz_gpiolib_init(void);
 672 +
 673 +static int n516_setup_platform(void)
 674 +{
 675 +       board_gpio_setup();
 676 +
 677 +       panic_blink = n516_panic_blink;
 678 +       i2c_register_board_info(0, n516_i2c_board_info, ARRAY_SIZE(n516_i2c_board_info));
 679 +       jz4740_mmc_device.dev.platform_data = &n516_mmc_pdata;
 680 +       jz4740_nand_device.dev.platform_data = &n516_nand_pdata;
 681 +
 682 +       return platform_add_devices(n516_devices, ARRAY_SIZE(n516_devices));
 683 +}
 684 +arch_initcall(n516_setup_platform);