target/linux/xburst/patches-2.6.34/006-add-n516-board-support.patch

   1 From 49f148f79887cec83c4b051c104072d770a6a9af 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          |  393 ++++++++++++++++++++++++
  11  arch/mips/jz4740/board-n516.c                  |  206 +++++++++++++
  12  5 files changed, 643 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 diff --git a/arch/mips/include/asm/mach-jz4740/board-n516.h b/arch/mips/include/asm/mach-jz4740/board-n516.h
  18 new file mode 100644
  19 index 0000000..f3f1e0a
  20 --- /dev/null
  21 +++ b/arch/mips/include/asm/mach-jz4740/board-n516.h
  22 @@ -0,0 +1,39 @@
  23 +/*
  24 + *  linux/include/asm-mips/mach-jz4740/board-n516.h
  25 + *
  26 + *  JZ4730-based N516 board definition.
  27 + *
  28 + *  Copyright (C) 2009, Yauhen Kharuzhy <jekhor@gmail.com>
  29 + *
  30 + * This program is free software; you can redistribute it and/or modify
  31 + * it under the terms of the GNU General Public License as published by
  32 + * the Free Software Foundation; either version 2 of the License, or
  33 + * (at your option) any later version.
  34 + */
  35 +
  36 +#ifndef __ASM_JZ4740_N516_H__
  37 +#define __ASM_JZ4740_N516_H__
  38 +
  39 +#include <asm/mach-jz4740/gpio.h>
  40 +
  41 +/*
  42 + * GPIO
  43 + */
  44 +#define GPIO_SD_VCC_EN_N       JZ_GPIO_PORTD(17)
  45 +#define GPIO_SD_CD_N           JZ_GPIO_PORTD(7)
  46 +#define GPIO_SD_WP             JZ_GPIO_PORTD(15)
  47 +#define GPIO_USB_DETECT                JZ_GPIO_PORTD(19)
  48 +#define GPIO_CHARG_STAT_N      JZ_GPIO_PORTD(16)
  49 +#define GPIO_LED_ENABLE                JZ_GPIO_PORTD(28)
  50 +#define GPIO_LPC_INT           JZ_GPIO_PORTD(14)
  51 +#define GPIO_HPHONE_DETECT     JZ_GPIO_PORTD(20)
  52 +#define GPIO_SPEAKER_ENABLE    JZ_GPIO_PORTD(21)
  53 +
  54 +/* Display */
  55 +#define GPIO_DISPLAY_RST_L     JZ_GPIO_PORTB(18)
  56 +#define GPIO_DISPLAY_RDY       JZ_GPIO_PORTB(17)
  57 +#define GPIO_DISPLAY_STBY      JZ_GPIO_PORTC(22)
  58 +#define GPIO_DISPLAY_ERR       JZ_GPIO_PORTC(23)
  59 +#define GPIO_DISPLAY_OFF       JZ_GPIO_PORTD(1)
  60 +
  61 +#endif /* __ASM_JZ4740_N516_H__ */
  62 diff --git a/arch/mips/jz4740/Kconfig b/arch/mips/jz4740/Kconfig
  63 index 3de3b99..b987c27 100644
  64 --- a/arch/mips/jz4740/Kconfig
  65 +++ b/arch/mips/jz4740/Kconfig
  66 @@ -7,6 +7,10 @@ config JZ4740_QI_LB60
  67         bool "Qi Hardware Ben NanoNote"
  68         select SOC_JZ4740
  69
  70 +config JZ4740_N516
  71 +       bool "Hanvon n516 eBook reader"
  72 +       select SOC_JZ4740
  73 +
  74  endchoice
  75
  76  config HAVE_PWM
  77 diff --git a/arch/mips/jz4740/Makefile b/arch/mips/jz4740/Makefile
  78 index deca88e..9ed5e5b 100644
  79 --- a/arch/mips/jz4740/Makefile
  80 +++ b/arch/mips/jz4740/Makefile
  81 @@ -12,6 +12,7 @@ obj-$(CONFIG_DEBUG_FS) += clock-debugfs.o
  82  # board specific support
  83
  84  obj-$(CONFIG_JZ4740_QI_LB60)   += board-qi_lb60.o
  85 +obj-$(CONFIG_JZ4740_N516)      += board-n516.o board-n516-display.o
  86
  87  # PM support
  88
  89 diff --git a/arch/mips/jz4740/board-n516-display.c b/arch/mips/jz4740/board-n516-display.c
  90 new file mode 100644
  91 index 0000000..44d8237
  92 --- /dev/null
  93 +++ b/arch/mips/jz4740/board-n516-display.c
  94 @@ -0,0 +1,393 @@
  95 +/*
  96 + * board-n516-display.c -- Platform device for N516 display
  97 + *
  98 + * Copyright (C) 2009, Yauhen Kharuzhy <jekhor@gmail.com>
  99 + *
 100 + * This file is subject to the terms and conditions of the GNU General Public
 101 + * License. See the file COPYING in the main directory of this archive for
 102 + * more details.
 103 + */
 104 +
 105 +#include <linux/module.h>
 106 +#include <linux/kernel.h>
 107 +#include <linux/errno.h>
 108 +#include <linux/string.h>
 109 +#include <linux/delay.h>
 110 +#include <linux/interrupt.h>
 111 +#include <linux/fb.h>
 112 +#include <linux/init.h>
 113 +#include <linux/platform_device.h>
 114 +#include <linux/irq.h>
 115 +#include <linux/gpio.h>
 116 +#include <linux/jz4740_fb.h>
 117 +
 118 +#include <asm/mach-jz4740/platform.h>
 119 +#include <asm/mach-jz4740/board-n516.h>
 120 +
 121 +#include <video/metronomefb.h>
 122 +#include <linux/console.h>
 123 +
 124 +static struct fb_videomode n516_fb_modes[] = {
 125 +       [0] = {
 126 +               .name           = "Metronome 800x600",
 127 +               .refresh        = 50,
 128 +               .xres           = 400,
 129 +               .yres           = 624,
 130 +               .hsync_len      = 31,
 131 +               .vsync_len      = 23,
 132 +               .right_margin   = 31,
 133 +               .left_margin    = 5,
 134 +               .upper_margin   = 1,
 135 +               .lower_margin   = 2,
 136 +               .sync = FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT,
 137 +       },
 138 +};
 139 +
 140 +static struct jz4740_fb_platform_data n516_fb_pdata = {
 141 +       .num_modes      = ARRAY_SIZE(n516_fb_modes),
 142 +       .modes          = n516_fb_modes,
 143 +       .bpp            = 16,
 144 +       .lcd_type       = JZ_LCD_TYPE_GENERIC_16_BIT,
 145 +};
 146 +
 147 +struct n516_board_info {
 148 +       uint8_t *metromem;
 149 +       size_t wfm_size;
 150 +       struct fb_info *host_fbinfo; /* the host LCD controller's fbi */
 151 +       unsigned int fw;
 152 +       unsigned int fh;
 153 +};
 154 +
 155 +static struct platform_device *n516_device;
 156 +static struct n516_board_info n516_board_info;
 157 +
 158 +static int metronome_gpios[] = {
 159 +       GPIO_DISPLAY_STBY,
 160 +       GPIO_DISPLAY_RST_L,
 161 +       GPIO_DISPLAY_RDY,
 162 +       GPIO_DISPLAY_ERR,
 163 +/*     GPIO_DISPLAY_OFF,*/
 164 +};
 165 +
 166 +static const char *metronome_gpio_names[] = {
 167 +       "Metronome STDBY",
 168 +       "Metronome RST",
 169 +       "Metronome RDY",
 170 +       "Metronome ERR",
 171 +/*     "Metronone OFF",*/
 172 +};
 173 +
 174 +static int n516_enable_hostfb(bool enable)
 175 +{
 176 +       int ret;
 177 +       int blank = enable ? FB_BLANK_UNBLANK : FB_BLANK_POWERDOWN;
 178 +
 179 +       acquire_console_sem();
 180 +       ret = fb_blank(n516_board_info.host_fbinfo, blank);
 181 +       release_console_sem();
 182 +
 183 +       return ret;
 184 +}
 185 +
 186 +static int n516_init_metronome_gpios(struct metronomefb_par *par)
 187 +{
 188 +       int i;
 189 +       int ret;
 190 +
 191 +       for (i = 0; i < ARRAY_SIZE(metronome_gpios); ++i) {
 192 +               ret = gpio_request(metronome_gpios[i], metronome_gpio_names[i]);
 193 +               if (ret)
 194 +                       goto err;
 195 +       }
 196 +
 197 +       gpio_direction_output(GPIO_DISPLAY_OFF, 0);
 198 +       gpio_direction_output(GPIO_DISPLAY_RST_L, 0);
 199 +       gpio_direction_output(GPIO_DISPLAY_STBY, 0);
 200 +       gpio_direction_input(GPIO_DISPLAY_RDY);
 201 +       gpio_direction_input(GPIO_DISPLAY_ERR);
 202 +
 203 +       return 0;
 204 +err:
 205 +       for (--i; i >= 0; --i)
 206 +               gpio_free(metronome_gpios[i]);
 207 +
 208 +       return ret;
 209 +}
 210 +
 211 +static int n516_share_video_mem(struct fb_info *info)
 212 +{
 213 +       int ret;
 214 +
 215 +       dev_dbg(&n516_device->dev, "ENTER %s\n", __func__);
 216 +       dev_dbg(&n516_device->dev, "%s, info->var.xres = %u, info->var.yres = %u\n", __func__, info->var.xres, info->var.yres);
 217 +       /* rough check if this is our desired fb and not something else */
 218 +       if ((info->var.xres != n516_fb_pdata.modes[0].xres)
 219 +               || (info->var.yres != n516_fb_pdata.modes[0].yres))
 220 +               return 0;
 221 +
 222 +       /* we've now been notified that we have our new fb */
 223 +       n516_board_info.metromem = info->screen_base;
 224 +       n516_board_info.host_fbinfo = info;
 225 +
 226 +       n516_enable_hostfb(false);
 227 +       /* try to refcount host drv since we are the consumer after this */
 228 +       if (!try_module_get(info->fbops->owner))
 229 +               return -ENODEV;
 230 +
 231 +       /* this _add binds metronomefb to n516. metronomefb refcounts n516 */
 232 +       ret = platform_device_add(n516_device);
 233 +
 234 +       if (ret) {
 235 +               platform_device_put(n516_device);
 236 +               return ret;
 237 +       }
 238 +
 239 +       /* request our platform independent driver */
 240 +       request_module("metronomefb");
 241 +
 242 +       return 0;
 243 +}
 244 +
 245 +static int n516_unshare_video_mem(struct fb_info *info)
 246 +{
 247 +       dev_dbg(&n516_device->dev, "ENTER %s\n", __func__);
 248 +
 249 +       if (info != n516_board_info.host_fbinfo)
 250 +               return 0;
 251 +
 252 +       module_put(n516_board_info.host_fbinfo->fbops->owner);
 253 +       return 0;
 254 +}
 255 +
 256 +static int n516_fb_notifier_callback(struct notifier_block *self,
 257 +                                unsigned long event, void *data)
 258 +{
 259 +       struct fb_event *evdata = data;
 260 +       struct fb_info *info = evdata->info;
 261 +
 262 +       dev_dbg(&n516_device->dev, "ENTER %s\n", __func__);
 263 +
 264 +       if (event == FB_EVENT_FB_REGISTERED)
 265 +               return n516_share_video_mem(info);
 266 +       else if (event == FB_EVENT_FB_UNREGISTERED)
 267 +               return n516_unshare_video_mem(info);
 268 +
 269 +       return 0;
 270 +}
 271 +
 272 +static struct notifier_block n516_fb_notif = {
 273 +       .notifier_call = n516_fb_notifier_callback,
 274 +};
 275 +
 276 +/* this gets called as part of our init. these steps must be done now so
 277 + * that we can use set_pxa_fb_info */
 278 +static void __init n516_presetup_fb(void)
 279 +{
 280 +       int padding_size;
 281 +       int totalsize;
 282 +
 283 +       /* the frame buffer is divided as follows:
 284 +       command | CRC | padding
 285 +       16kb waveform data | CRC | padding
 286 +       image data | CRC
 287 +       */
 288 +
 289 +       n516_board_info.fw = 800;
 290 +       n516_board_info.fh = 624;
 291 +
 292 +       /* waveform must be 16k + 2 for checksum */
 293 +       n516_board_info.wfm_size = roundup(16*1024 + 2, n516_board_info.fw);
 294 +
 295 +       padding_size = PAGE_SIZE + (4 * n516_board_info.fw);
 296 +
 297 +       /* total is 1 cmd , 1 wfm, padding and image */
 298 +       totalsize = n516_board_info.fw + n516_board_info.wfm_size;
 299 +       totalsize += padding_size + (n516_board_info.fw*n516_board_info.fh);
 300 +
 301 +       /* save this off because we're manipulating fw after this and
 302 +        * we'll need it when we're ready to setup the framebuffer */
 303 +
 304 +       /* the reason we do this adjustment is because we want to acquire
 305 +        * more framebuffer memory without imposing custom awareness on the
 306 +        * underlying driver */
 307 +       n516_fb_pdata.modes[0].yres = DIV_ROUND_UP(totalsize, n516_board_info.fw);
 308 +
 309 +       jz4740_framebuffer_device.dev.platform_data = &n516_fb_pdata;
 310 +       platform_device_register(&jz4740_framebuffer_device);
 311 +}
 312 +
 313 +/* this gets called by metronomefb as part of its init, in our case, we
 314 + * have already completed initial framebuffer init in presetup_fb so we
 315 + * can just setup the fb access pointers */
 316 +static int n516_setup_fb(struct metronomefb_par *par)
 317 +{
 318 +       /* metromem was set up by the notifier in share_video_mem so now
 319 +        * we can use its value to calculate the other entries */
 320 +       par->metromem_cmd = (struct metromem_cmd *) n516_board_info.metromem;
 321 +       par->metromem_wfm = n516_board_info.metromem + n516_board_info.fw;
 322 +       par->metromem_img = par->metromem_wfm + n516_board_info.wfm_size;
 323 +       par->metromem_img_csum = (u16 *) (par->metromem_img + (n516_board_info.fw * n516_board_info.fh));
 324 +       par->metromem_dma = n516_board_info.host_fbinfo->fix.smem_start;
 325 +
 326 +       return 0;
 327 +}
 328 +
 329 +static int n516_get_panel_type(void)
 330 +{
 331 +       return 5;
 332 +}
 333 +
 334 +static irqreturn_t n516_handle_irq(int irq, void *dev_id)
 335 +{
 336 +       struct metronomefb_par *par = dev_id;
 337 +
 338 +       dev_dbg(&par->pdev->dev, "Metronome IRQ! RDY=%d\n",     gpio_get_value(GPIO_DISPLAY_RDY));
 339 +       wake_up_all(&par->waitq);
 340 +
 341 +       return IRQ_HANDLED;
 342 +}
 343 +
 344 +static void n516_power_ctl(struct metronomefb_par *par, int cmd)
 345 +{
 346 +       switch (cmd) {
 347 +       case METRONOME_POWER_OFF:
 348 +               gpio_set_value(GPIO_DISPLAY_OFF, 1);
 349 +               n516_enable_hostfb(false);
 350 +               break;
 351 +       case METRONOME_POWER_ON:
 352 +               gpio_set_value(GPIO_DISPLAY_OFF, 0);
 353 +               n516_enable_hostfb(true);
 354 +               break;
 355 +       }
 356 +}
 357 +
 358 +static int n516_get_rdy(struct metronomefb_par *par)
 359 +{
 360 +       return gpio_get_value(GPIO_DISPLAY_RDY);
 361 +}
 362 +
 363 +static int n516_get_err(struct metronomefb_par *par)
 364 +{
 365 +       return gpio_get_value(GPIO_DISPLAY_ERR);
 366 +}
 367 +
 368 +static int n516_setup_irq(struct fb_info *info)
 369 +{
 370 +       int ret;
 371 +
 372 +       dev_dbg(&n516_device->dev, "ENTER %s\n", __func__);
 373 +
 374 +       ret = request_irq(gpio_to_irq(GPIO_DISPLAY_RDY), n516_handle_irq,
 375 +                               IRQF_TRIGGER_RISING,
 376 +                               "n516", info->par);
 377 +       if (ret)
 378 +               dev_err(&n516_device->dev, "request_irq failed: %d\n", ret);
 379 +
 380 +       return ret;
 381 +}
 382 +
 383 +static void n516_set_rst(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_RST_L, 1);
 388 +       else
 389 +               gpio_set_value(GPIO_DISPLAY_RST_L, 0);
 390 +}
 391 +
 392 +static void n516_set_stdby(struct metronomefb_par *par, int state)
 393 +{
 394 +       dev_dbg(&n516_device->dev, "ENTER %s, RDY=%d\n", __func__, gpio_get_value(GPIO_DISPLAY_RDY));
 395 +       if (state)
 396 +               gpio_set_value(GPIO_DISPLAY_STBY, 1);
 397 +       else
 398 +               gpio_set_value(GPIO_DISPLAY_STBY, 0);
 399 +}
 400 +
 401 +static int n516_wait_event(struct metronomefb_par *par)
 402 +{
 403 +       unsigned long timeout = jiffies + HZ / 20;
 404 +
 405 +       dev_dbg(&n516_device->dev, "ENTER1 %s, RDY=%d\n",
 406 +                       __func__, gpio_get_value(GPIO_DISPLAY_RDY));
 407 +       while (n516_get_rdy(par) && time_before(jiffies, timeout))
 408 +               schedule();
 409 +
 410 +       dev_dbg(&n516_device->dev, "ENTER2 %s, RDY=%d\n",
 411 +                       __func__, gpio_get_value(GPIO_DISPLAY_RDY));
 412 +       return wait_event_timeout(par->waitq,
 413 +                       n516_get_rdy(par), HZ * 2) ? 0 : -EIO;
 414 +}
 415 +
 416 +static int n516_wait_event_intr(struct metronomefb_par *par)
 417 +{
 418 +       unsigned long timeout = jiffies + HZ/20;
 419 +
 420 +       dev_dbg(&n516_device->dev, "ENTER1 %s, RDY=%d\n",
 421 +                       __func__, gpio_get_value(GPIO_DISPLAY_RDY));
 422 +       while (n516_get_rdy(par) && time_before(jiffies, timeout))
 423 +               schedule();
 424 +
 425 +       dev_dbg(&n516_device->dev, "ENTER2 %s, RDY=%d\n",
 426 +                       __func__, gpio_get_value(GPIO_DISPLAY_RDY));
 427 +       return wait_event_interruptible_timeout(par->waitq,
 428 +                                       n516_get_rdy(par), HZ * 2) ? 0 : -EIO;
 429 +}
 430 +
 431 +static void n516_cleanup(struct metronomefb_par *par)
 432 +{
 433 +       int i;
 434 +
 435 +       free_irq(gpio_to_irq(GPIO_DISPLAY_RDY), par);
 436 +       for (i = 0; i < ARRAY_SIZE(metronome_gpios); ++i)
 437 +               gpio_free(metronome_gpios[i]);
 438 +}
 439 +
 440 +static struct metronome_board n516_board __initdata = {
 441 +       .owner                  = THIS_MODULE,
 442 +       .power_ctl              = n516_power_ctl,
 443 +       .setup_irq              = n516_setup_irq,
 444 +       .setup_io               = n516_init_metronome_gpios,
 445 +       .setup_fb               = n516_setup_fb,
 446 +       .set_rst                = n516_set_rst,
 447 +       .get_err                = n516_get_err,
 448 +       .get_rdy                = n516_get_rdy,
 449 +       .set_stdby              = n516_set_stdby,
 450 +       .met_wait_event         = n516_wait_event,
 451 +       .met_wait_event_intr    = n516_wait_event_intr,
 452 +       .get_panel_type         = n516_get_panel_type,
 453 +       .cleanup                = n516_cleanup,
 454 +};
 455 +
 456 +static int __init n516_init(void)
 457 +{
 458 +       int ret;
 459 +
 460 +       /* Keep the metronome off, until its driver is loaded */
 461 +       ret = gpio_request(GPIO_DISPLAY_OFF, "Display off");
 462 +       if (ret)
 463 +               return ret;
 464 +
 465 +       gpio_direction_output(GPIO_DISPLAY_OFF, 1);
 466 +
 467 +       /* before anything else, we request notification for any fb
 468 +        * creation events */
 469 +       fb_register_client(&n516_fb_notif);
 470 +
 471 +       n516_device = platform_device_alloc("metronomefb", -1);
 472 +       if (!n516_device)
 473 +               return -ENOMEM;
 474 +
 475 +       /* the n516_board that will be seen by metronomefb is a copy */
 476 +       platform_device_add_data(n516_device, &n516_board,
 477 +                                       sizeof(n516_board));
 478 +
 479 +       n516_presetup_fb();
 480 +
 481 +       return 0;
 482 +}
 483 +module_init(n516_init);
 484 +
 485 +MODULE_DESCRIPTION("board driver for n516 display");
 486 +MODULE_AUTHOR("Yauhen Kharuzhy");
 487 +MODULE_LICENSE("GPL");
 488 diff --git a/arch/mips/jz4740/board-n516.c b/arch/mips/jz4740/board-n516.c
 489 new file mode 100644
 490 index 0000000..efb8747
 491 --- /dev/null
 492 +++ b/arch/mips/jz4740/board-n516.c
 493 @@ -0,0 +1,206 @@
 494 +/*
 495 + * linux/arch/mips/jz4740/board-516.c
 496 + *
 497 + * JZ4740 n516 board setup routines.
 498 + *
 499 + * Copyright (c) 2009, Yauhen Kharuzhy <jekhor@gmail.com>
 500 + *
 501 + * This program is free software; you can redistribute it and/or modify
 502 + * it under the terms of the GNU General Public License as published by
 503 + * the Free Software Foundation; either version 2 of the License, or
 504 + * (at your option) any later version.
 505 + */
 506 +
 507 +#include <linux/init.h>
 508 +#include <linux/sched.h>
 509 +#include <linux/ioport.h>
 510 +#include <linux/mm.h>
 511 +#include <linux/console.h>
 512 +#include <linux/delay.h>
 513 +#include <linux/i2c.h>
 514 +#include <linux/platform_device.h>
 515 +#include <linux/mtd/mtd.h>
 516 +#include <linux/mmc/jz4740_mmc.h>
 517 +#include <linux/mtd/jz4740_nand.h>
 518 +#include <linux/leds.h>
 519 +
 520 +#include <linux/power_supply.h>
 521 +#include <linux/power/gpio-charger.h>
 522 +
 523 +#include <linux/i2c.h>
 524 +#include <linux/i2c-gpio.h>
 525 +
 526 +#include <asm/mach-jz4740/board-n516.h>
 527 +#include <asm/mach-jz4740/platform.h>
 528 +
 529 +#include "clock.h"
 530 +
 531 +static long n516_panic_blink(long time)
 532 +{
 533 +       gpio_set_value(GPIO_LED_ENABLE, 1);
 534 +       mdelay(200);
 535 +       gpio_set_value(GPIO_LED_ENABLE, 0);
 536 +       mdelay(200);
 537 +
 538 +       return 400;
 539 +}
 540 +
 541 +static void __init board_gpio_setup(void)
 542 +{
 543 +/*     jz_gpio_enable_pullup(JZ_GPIO_PORTD(23));
 544 +       jz_gpio_enable_pullup(JZ_GPIO_PORTD(24));*/
 545 +}
 546 +
 547 +static struct i2c_gpio_platform_data n516_i2c_pdata = {
 548 +       .sda_pin = JZ_GPIO_PORTD(23),
 549 +       .scl_pin = JZ_GPIO_PORTD(24),
 550 +       .udelay = 2,
 551 +       .timeout = 3 * HZ,
 552 +};
 553 +
 554 +static struct platform_device n516_i2c_device = {
 555 +       .name = "i2c-gpio",
 556 +       .id = -1,
 557 +       .dev = {
 558 +               .platform_data = &n516_i2c_pdata,
 559 +       },
 560 +};
 561 +
 562 +static const struct i2c_board_info n516_i2c_board_info[] = {
 563 +       {
 564 +               .type           = "LPC524",
 565 +               .addr           = 0x54,
 566 +       },
 567 +       {
 568 +               .type           = "lm75a",
 569 +               .addr           = 0x48,
 570 +       }
 571 +};
 572 +
 573 +static struct jz4740_mmc_platform_data n516_mmc_pdata = {
 574 +       .gpio_card_detect       = GPIO_SD_CD_N,
 575 +       .card_detect_active_low = 1,
 576 +       .gpio_read_only         = -1,
 577 +       .gpio_power             = GPIO_SD_VCC_EN_N,
 578 +       .power_active_low = 1,
 579 +};
 580 +
 581 +static struct gpio_led n516_leds[] = {
 582 +       {
 583 +               .name = "n516:blue:power",
 584 +               .gpio = GPIO_LED_ENABLE,
 585 +               .default_state = LEDS_GPIO_DEFSTATE_ON,
 586 +               .default_trigger = "nand-disk",
 587 +       }
 588 +};
 589 +
 590 +static struct gpio_led_platform_data n516_leds_pdata = {
 591 +       .leds = n516_leds,
 592 +       .num_leds = ARRAY_SIZE(n516_leds),
 593 +};
 594 +
 595 +static struct platform_device n516_leds_device = {
 596 +       .name = "leds-gpio",
 597 +       .id = -1,
 598 +       .dev = {
 599 +               .platform_data = &n516_leds_pdata,
 600 +       },
 601 +};
 602 +
 603 +static struct mtd_partition n516_partitions[] = {
 604 +       { .name = "NAND BOOT partition",
 605 +         .offset = 0 * 0x100000,
 606 +         .size = 4 * 0x100000,
 607 +       },
 608 +       { .name = "NAND KERNEL partition",
 609 +         .offset = 4 * 0x100000,
 610 +         .size = 4 * 0x100000,
 611 +       },
 612 +       { .name = "NAND ROOTFS partition",
 613 +         .offset = 8 * 0x100000,
 614 +         .size = 504 * 0x100000,
 615 +       },
 616 +};
 617 +
 618 +static struct nand_ecclayout n516_ecclayout = {
 619 +       .eccbytes = 36,
 620 +       .eccpos = {
 621 +                6,  7,  8,  9, 10, 11, 12, 13, 14,
 622 +               15, 16, 17, 18, 19, 20, 21, 22, 23,
 623 +               24, 25, 26, 27, 28, 29, 30, 31, 32,
 624 +               33, 34, 35, 36, 37, 38, 39, 40, 41,
 625 +       },
 626 +       .oobfree = {
 627 +               {
 628 +                       .offset = 2,
 629 +                       .length = 4
 630 +               },
 631 +               {
 632 +                       .offset = 42,
 633 +                       .length = 22,
 634 +               }
 635 +       }
 636 +};
 637 +
 638 +static struct jz_nand_platform_data n516_nand_pdata = {
 639 +       .ecc_layout = &n516_ecclayout,
 640 +       .partitions = n516_partitions,
 641 +       .num_partitions = ARRAY_SIZE(n516_partitions),
 642 +       .busy_gpio = 94,
 643 +};
 644 +
 645 +static char *n516_batteries[] = {
 646 +       "n516_battery",
 647 +};
 648 +
 649 +static struct gpio_charger_platform_data n516_charger_pdata = {
 650 +       .name = "usb",
 651 +       .type = POWER_SUPPLY_TYPE_USB,
 652 +       .gpio = GPIO_USB_DETECT,
 653 +       .gpio_active_low = 1,
 654 +       .batteries = n516_batteries,
 655 +       .num_batteries = ARRAY_SIZE(n516_batteries),
 656 +};
 657 +
 658 +static struct platform_device n516_charger_device = {
 659 +       .name = "gpio-charger",
 660 +       .dev = {
 661 +               .platform_data = &n516_charger_pdata,
 662 +       },
 663 +};
 664 +
 665 +static struct platform_device *n516_devices[] __initdata = {
 666 +       &jz4740_nand_device,
 667 +       &n516_leds_device,
 668 +       &jz4740_mmc_device,
 669 +       &jz4740_i2s_device,
 670 +       &jz4740_codec_device,
 671 +       &jz4740_rtc_device,
 672 +       &jz4740_usb_gdt_device,
 673 +       &n516_i2c_device,
 674 +       &n516_charger_device,
 675 +};
 676 +
 677 +struct jz4740_clock_board_data jz4740_clock_bdata = {
 678 +       .ext_rate = 12000000,
 679 +       .rtc_rate = 32768,
 680 +};
 681 +
 682 +extern int jz_gpiolib_init(void);
 683 +
 684 +static int n516_setup_platform(void)
 685 +{
 686 +       if (jz_gpiolib_init())
 687 +               panic("Failed to initalize jz gpio\n");
 688 +
 689 +       jz4740_clock_init();
 690 +       board_gpio_setup();
 691 +
 692 +       panic_blink = n516_panic_blink;
 693 +       i2c_register_board_info(0, n516_i2c_board_info, ARRAY_SIZE(n516_i2c_board_info));
 694 +       jz4740_mmc_device.dev.platform_data = &n516_mmc_pdata;
 695 +       jz4740_nand_device.dev.platform_data = &n516_nand_pdata;
 696 +
 697 +       return platform_add_devices(n516_devices, ARRAY_SIZE(n516_devices));
 698 +}
 699 +arch_initcall(n516_setup_platform);
 700 --
 701 1.5.6.5
 702