| 1 | From c8e520077c339cbc623aa629588865c7c3ff2937 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 | 3 + |
| 9 | arch/mips/jz4740/Makefile | 1 + |
| 10 | arch/mips/jz4740/board-n516-display.c | 394 ++++++++++++++++++++++++ |
| 11 | arch/mips/jz4740/board-n516.c | 182 +++++++++++ |
| 12 | 5 files changed, 619 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 +6,9 @@ choice |
| 62 | config JZ4740_QI_LB60 |
| 63 | bool "Qi Hardware Ben NanoNote" |
| 64 | |
| 65 | +config JZ4740_N516 |
| 66 | + bool "Hanvon n516 eBook reader" |
| 67 | + |
| 68 | endchoice |
| 69 | |
| 70 | config HAVE_PWM |
| 71 | --- a/arch/mips/jz4740/Makefile |
| 72 | +++ b/arch/mips/jz4740/Makefile |
| 73 | @@ -12,6 +12,7 @@ obj-$(CONFIG_DEBUG_FS) += clock-debugfs. |
| 74 | # board specific support |
| 75 | |
| 76 | obj-$(CONFIG_JZ4740_QI_LB60) += board-qi_lb60.o |
| 77 | +obj-$(CONFIG_JZ4740_N516) += board-n516.o board-n516-display.o |
| 78 | |
| 79 | # PM support |
| 80 | |
| 81 | --- /dev/null |
| 82 | +++ b/arch/mips/jz4740/board-n516-display.c |
| 83 | @@ -0,0 +1,394 @@ |
| 84 | +/* |
| 85 | + * board-n516-display.c -- Platform device for N516 display |
| 86 | + * |
| 87 | + * Copyright (C) 2009, Yauhen Kharuzhy <jekhor@gmail.com> |
| 88 | + * |
| 89 | + * This file is subject to the terms and conditions of the GNU General Public |
| 90 | + * License. See the file COPYING in the main directory of this archive for |
| 91 | + * more details. |
| 92 | + */ |
| 93 | + |
| 94 | +#include <linux/module.h> |
| 95 | +#include <linux/kernel.h> |
| 96 | +#include <linux/errno.h> |
| 97 | +#include <linux/string.h> |
| 98 | +#include <linux/delay.h> |
| 99 | +#include <linux/interrupt.h> |
| 100 | +#include <linux/fb.h> |
| 101 | +#include <linux/init.h> |
| 102 | +#include <linux/platform_device.h> |
| 103 | +#include <linux/irq.h> |
| 104 | +#include <linux/gpio.h> |
| 105 | + |
| 106 | +#include <asm/mach-jz4740/jz4740_fb.h> |
| 107 | + |
| 108 | +#include <asm/mach-jz4740/platform.h> |
| 109 | +#include <asm/mach-jz4740/board-n516.h> |
| 110 | + |
| 111 | +#include <video/metronomefb.h> |
| 112 | +#include <linux/console.h> |
| 113 | + |
| 114 | +static struct fb_videomode n516_fb_modes[] = { |
| 115 | + [0] = { |
| 116 | + .name = "Metronome 800x600", |
| 117 | + .refresh = 50, |
| 118 | + .xres = 400, |
| 119 | + .yres = 624, |
| 120 | + .hsync_len = 31, |
| 121 | + .vsync_len = 23, |
| 122 | + .right_margin = 31, |
| 123 | + .left_margin = 5, |
| 124 | + .upper_margin = 1, |
| 125 | + .lower_margin = 2, |
| 126 | + .sync = FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT, |
| 127 | + }, |
| 128 | +}; |
| 129 | + |
| 130 | +static struct jz4740_fb_platform_data n516_fb_pdata = { |
| 131 | + .num_modes = ARRAY_SIZE(n516_fb_modes), |
| 132 | + .modes = n516_fb_modes, |
| 133 | + .bpp = 16, |
| 134 | + .lcd_type = JZ_LCD_TYPE_GENERIC_16_BIT, |
| 135 | +}; |
| 136 | + |
| 137 | +struct n516_board_info { |
| 138 | + uint8_t *metromem; |
| 139 | + size_t wfm_size; |
| 140 | + struct fb_info *host_fbinfo; /* the host LCD controller's fbi */ |
| 141 | + unsigned int fw; |
| 142 | + unsigned int fh; |
| 143 | +}; |
| 144 | + |
| 145 | +static struct platform_device *n516_device; |
| 146 | +static struct n516_board_info n516_board_info; |
| 147 | + |
| 148 | +static int metronome_gpios[] = { |
| 149 | + GPIO_DISPLAY_STBY, |
| 150 | + GPIO_DISPLAY_RST_L, |
| 151 | + GPIO_DISPLAY_RDY, |
| 152 | + GPIO_DISPLAY_ERR, |
| 153 | +/* GPIO_DISPLAY_OFF_N,*/ |
| 154 | +}; |
| 155 | + |
| 156 | +static const char *metronome_gpio_names[] = { |
| 157 | + "Metronome STDBY", |
| 158 | + "Metronome RST", |
| 159 | + "Metronome RDY", |
| 160 | + "Metronome ERR", |
| 161 | +/* "Metronone OFF",*/ |
| 162 | +}; |
| 163 | + |
| 164 | +static int n516_enable_hostfb(bool enable) |
| 165 | +{ |
| 166 | + int ret; |
| 167 | + int blank = enable ? FB_BLANK_UNBLANK : FB_BLANK_POWERDOWN; |
| 168 | + |
| 169 | + acquire_console_sem(); |
| 170 | + ret = fb_blank(n516_board_info.host_fbinfo, blank); |
| 171 | + release_console_sem(); |
| 172 | + |
| 173 | + return ret; |
| 174 | +} |
| 175 | + |
| 176 | +static int n516_init_metronome_gpios(struct metronomefb_par *par) |
| 177 | +{ |
| 178 | + int i; |
| 179 | + int ret; |
| 180 | + |
| 181 | + for (i = 0; i < ARRAY_SIZE(metronome_gpios); ++i) { |
| 182 | + ret = gpio_request(metronome_gpios[i], metronome_gpio_names[i]); |
| 183 | + if (ret) |
| 184 | + goto err; |
| 185 | + } |
| 186 | + |
| 187 | + gpio_direction_output(GPIO_DISPLAY_OFF_N, 0); |
| 188 | + gpio_direction_output(GPIO_DISPLAY_RST_L, 0); |
| 189 | + gpio_direction_output(GPIO_DISPLAY_STBY, 0); |
| 190 | + gpio_direction_input(GPIO_DISPLAY_RDY); |
| 191 | + gpio_direction_input(GPIO_DISPLAY_ERR); |
| 192 | + |
| 193 | + return 0; |
| 194 | +err: |
| 195 | + for (--i; i >= 0; --i) |
| 196 | + gpio_free(metronome_gpios[i]); |
| 197 | + |
| 198 | + return ret; |
| 199 | +} |
| 200 | + |
| 201 | +static int n516_share_video_mem(struct fb_info *info) |
| 202 | +{ |
| 203 | + int ret; |
| 204 | + |
| 205 | + dev_dbg(&n516_device->dev, "ENTER %s\n", __func__); |
| 206 | + dev_dbg(&n516_device->dev, "%s, info->var.xres = %u, info->var.yres = %u\n", __func__, info->var.xres, info->var.yres); |
| 207 | + /* rough check if this is our desired fb and not something else */ |
| 208 | + if ((info->var.xres != n516_fb_pdata.modes[0].xres) |
| 209 | + || (info->var.yres != n516_fb_pdata.modes[0].yres)) |
| 210 | + return 0; |
| 211 | + |
| 212 | + /* we've now been notified that we have our new fb */ |
| 213 | + n516_board_info.metromem = info->screen_base; |
| 214 | + n516_board_info.host_fbinfo = info; |
| 215 | + |
| 216 | + n516_enable_hostfb(false); |
| 217 | + /* try to refcount host drv since we are the consumer after this */ |
| 218 | + if (!try_module_get(info->fbops->owner)) |
| 219 | + return -ENODEV; |
| 220 | + |
| 221 | + /* this _add binds metronomefb to n516. metronomefb refcounts n516 */ |
| 222 | + ret = platform_device_add(n516_device); |
| 223 | + |
| 224 | + if (ret) { |
| 225 | + platform_device_put(n516_device); |
| 226 | + return ret; |
| 227 | + } |
| 228 | + |
| 229 | + /* request our platform independent driver */ |
| 230 | + request_module("metronomefb"); |
| 231 | + |
| 232 | + return 0; |
| 233 | +} |
| 234 | + |
| 235 | +static int n516_unshare_video_mem(struct fb_info *info) |
| 236 | +{ |
| 237 | + dev_dbg(&n516_device->dev, "ENTER %s\n", __func__); |
| 238 | + |
| 239 | + if (info != n516_board_info.host_fbinfo) |
| 240 | + return 0; |
| 241 | + |
| 242 | + module_put(n516_board_info.host_fbinfo->fbops->owner); |
| 243 | + return 0; |
| 244 | +} |
| 245 | + |
| 246 | +static int n516_fb_notifier_callback(struct notifier_block *self, |
| 247 | + unsigned long event, void *data) |
| 248 | +{ |
| 249 | + struct fb_event *evdata = data; |
| 250 | + struct fb_info *info = evdata->info; |
| 251 | + |
| 252 | + dev_dbg(&n516_device->dev, "ENTER %s\n", __func__); |
| 253 | + |
| 254 | + if (event == FB_EVENT_FB_REGISTERED) |
| 255 | + return n516_share_video_mem(info); |
| 256 | + else if (event == FB_EVENT_FB_UNREGISTERED) |
| 257 | + return n516_unshare_video_mem(info); |
| 258 | + |
| 259 | + return 0; |
| 260 | +} |
| 261 | + |
| 262 | +static struct notifier_block n516_fb_notif = { |
| 263 | + .notifier_call = n516_fb_notifier_callback, |
| 264 | +}; |
| 265 | + |
| 266 | +/* this gets called as part of our init. these steps must be done now so |
| 267 | + * that we can use set_pxa_fb_info */ |
| 268 | +static void __init n516_presetup_fb(void) |
| 269 | +{ |
| 270 | + int padding_size; |
| 271 | + int totalsize; |
| 272 | + |
| 273 | + /* the frame buffer is divided as follows: |
| 274 | + command | CRC | padding |
| 275 | + 16kb waveform data | CRC | padding |
| 276 | + image data | CRC |
| 277 | + */ |
| 278 | + |
| 279 | + n516_board_info.fw = 800; |
| 280 | + n516_board_info.fh = 624; |
| 281 | + |
| 282 | + /* waveform must be 16k + 2 for checksum */ |
| 283 | + n516_board_info.wfm_size = roundup(16*1024 + 2, n516_board_info.fw); |
| 284 | + |
| 285 | + padding_size = PAGE_SIZE + (4 * n516_board_info.fw); |
| 286 | + |
| 287 | + /* total is 1 cmd , 1 wfm, padding and image */ |
| 288 | + totalsize = n516_board_info.fw + n516_board_info.wfm_size; |
| 289 | + totalsize += padding_size + (n516_board_info.fw*n516_board_info.fh); |
| 290 | + |
| 291 | + /* save this off because we're manipulating fw after this and |
| 292 | + * we'll need it when we're ready to setup the framebuffer */ |
| 293 | + |
| 294 | + /* the reason we do this adjustment is because we want to acquire |
| 295 | + * more framebuffer memory without imposing custom awareness on the |
| 296 | + * underlying driver */ |
| 297 | + n516_fb_pdata.modes[0].yres = DIV_ROUND_UP(totalsize, n516_board_info.fw); |
| 298 | + |
| 299 | + jz4740_framebuffer_device.dev.platform_data = &n516_fb_pdata; |
| 300 | + platform_device_register(&jz4740_framebuffer_device); |
| 301 | +} |
| 302 | + |
| 303 | +/* this gets called by metronomefb as part of its init, in our case, we |
| 304 | + * have already completed initial framebuffer init in presetup_fb so we |
| 305 | + * can just setup the fb access pointers */ |
| 306 | +static int n516_setup_fb(struct metronomefb_par *par) |
| 307 | +{ |
| 308 | + /* metromem was set up by the notifier in share_video_mem so now |
| 309 | + * we can use its value to calculate the other entries */ |
| 310 | + par->metromem_cmd = (struct metromem_cmd *) n516_board_info.metromem; |
| 311 | + par->metromem_wfm = n516_board_info.metromem + n516_board_info.fw; |
| 312 | + par->metromem_img = par->metromem_wfm + n516_board_info.wfm_size; |
| 313 | + par->metromem_img_csum = (u16 *) (par->metromem_img + (n516_board_info.fw * n516_board_info.fh)); |
| 314 | + par->metromem_dma = n516_board_info.host_fbinfo->fix.smem_start; |
| 315 | + |
| 316 | + return 0; |
| 317 | +} |
| 318 | + |
| 319 | +static int n516_get_panel_type(void) |
| 320 | +{ |
| 321 | + return 5; |
| 322 | +} |
| 323 | + |
| 324 | +static irqreturn_t n516_handle_irq(int irq, void *dev_id) |
| 325 | +{ |
| 326 | + struct metronomefb_par *par = dev_id; |
| 327 | + |
| 328 | + dev_dbg(&par->pdev->dev, "Metronome IRQ! RDY=%d\n", gpio_get_value(GPIO_DISPLAY_RDY)); |
| 329 | + wake_up_all(&par->waitq); |
| 330 | + |
| 331 | + return IRQ_HANDLED; |
| 332 | +} |
| 333 | + |
| 334 | +static void n516_power_ctl(struct metronomefb_par *par, int cmd) |
| 335 | +{ |
| 336 | + switch (cmd) { |
| 337 | + case METRONOME_POWER_OFF: |
| 338 | + gpio_set_value(GPIO_DISPLAY_OFF_N, 1); |
| 339 | + n516_enable_hostfb(false); |
| 340 | + break; |
| 341 | + case METRONOME_POWER_ON: |
| 342 | + gpio_set_value(GPIO_DISPLAY_OFF_N, 0); |
| 343 | + n516_enable_hostfb(true); |
| 344 | + break; |
| 345 | + } |
| 346 | +} |
| 347 | + |
| 348 | +static int n516_get_rdy(struct metronomefb_par *par) |
| 349 | +{ |
| 350 | + return gpio_get_value(GPIO_DISPLAY_RDY); |
| 351 | +} |
| 352 | + |
| 353 | +static int n516_get_err(struct metronomefb_par *par) |
| 354 | +{ |
| 355 | + return gpio_get_value(GPIO_DISPLAY_ERR); |
| 356 | +} |
| 357 | + |
| 358 | +static int n516_setup_irq(struct fb_info *info) |
| 359 | +{ |
| 360 | + int ret; |
| 361 | + |
| 362 | + dev_dbg(&n516_device->dev, "ENTER %s\n", __func__); |
| 363 | + |
| 364 | + ret = request_irq(gpio_to_irq(GPIO_DISPLAY_RDY), n516_handle_irq, |
| 365 | + IRQF_TRIGGER_RISING, |
| 366 | + "n516", info->par); |
| 367 | + if (ret) |
| 368 | + dev_err(&n516_device->dev, "request_irq failed: %d\n", ret); |
| 369 | + |
| 370 | + return ret; |
| 371 | +} |
| 372 | + |
| 373 | +static void n516_set_rst(struct metronomefb_par *par, int state) |
| 374 | +{ |
| 375 | + dev_dbg(&n516_device->dev, "ENTER %s, RDY=%d\n", __func__, gpio_get_value(GPIO_DISPLAY_RDY)); |
| 376 | + if (state) |
| 377 | + gpio_set_value(GPIO_DISPLAY_RST_L, 1); |
| 378 | + else |
| 379 | + gpio_set_value(GPIO_DISPLAY_RST_L, 0); |
| 380 | +} |
| 381 | + |
| 382 | +static void n516_set_stdby(struct metronomefb_par *par, int state) |
| 383 | +{ |
| 384 | + dev_dbg(&n516_device->dev, "ENTER %s, RDY=%d\n", __func__, gpio_get_value(GPIO_DISPLAY_RDY)); |
| 385 | + if (state) |
| 386 | + gpio_set_value(GPIO_DISPLAY_STBY, 1); |
| 387 | + else |
| 388 | + gpio_set_value(GPIO_DISPLAY_STBY, 0); |
| 389 | +} |
| 390 | + |
| 391 | +static int n516_wait_event(struct metronomefb_par *par) |
| 392 | +{ |
| 393 | + unsigned long timeout = jiffies + HZ / 20; |
| 394 | + |
| 395 | + dev_dbg(&n516_device->dev, "ENTER1 %s, RDY=%d\n", |
| 396 | + __func__, gpio_get_value(GPIO_DISPLAY_RDY)); |
| 397 | + while (n516_get_rdy(par) && time_before(jiffies, timeout)) |
| 398 | + schedule(); |
| 399 | + |
| 400 | + dev_dbg(&n516_device->dev, "ENTER2 %s, RDY=%d\n", |
| 401 | + __func__, gpio_get_value(GPIO_DISPLAY_RDY)); |
| 402 | + return wait_event_timeout(par->waitq, |
| 403 | + n516_get_rdy(par), HZ * 2) ? 0 : -EIO; |
| 404 | +} |
| 405 | + |
| 406 | +static int n516_wait_event_intr(struct metronomefb_par *par) |
| 407 | +{ |
| 408 | + unsigned long timeout = jiffies + HZ/20; |
| 409 | + |
| 410 | + dev_dbg(&n516_device->dev, "ENTER1 %s, RDY=%d\n", |
| 411 | + __func__, gpio_get_value(GPIO_DISPLAY_RDY)); |
| 412 | + while (n516_get_rdy(par) && time_before(jiffies, timeout)) |
| 413 | + schedule(); |
| 414 | + |
| 415 | + dev_dbg(&n516_device->dev, "ENTER2 %s, RDY=%d\n", |
| 416 | + __func__, gpio_get_value(GPIO_DISPLAY_RDY)); |
| 417 | + return wait_event_interruptible_timeout(par->waitq, |
| 418 | + n516_get_rdy(par), HZ * 2) ? 0 : -EIO; |
| 419 | +} |
| 420 | + |
| 421 | +static void n516_cleanup(struct metronomefb_par *par) |
| 422 | +{ |
| 423 | + int i; |
| 424 | + |
| 425 | + free_irq(gpio_to_irq(GPIO_DISPLAY_RDY), par); |
| 426 | + for (i = 0; i < ARRAY_SIZE(metronome_gpios); ++i) |
| 427 | + gpio_free(metronome_gpios[i]); |
| 428 | +} |
| 429 | + |
| 430 | +static struct metronome_board n516_board __initdata = { |
| 431 | + .owner = THIS_MODULE, |
| 432 | + .power_ctl = n516_power_ctl, |
| 433 | + .setup_irq = n516_setup_irq, |
| 434 | + .setup_io = n516_init_metronome_gpios, |
| 435 | + .setup_fb = n516_setup_fb, |
| 436 | + .set_rst = n516_set_rst, |
| 437 | + .get_err = n516_get_err, |
| 438 | + .get_rdy = n516_get_rdy, |
| 439 | + .set_stdby = n516_set_stdby, |
| 440 | + .met_wait_event = n516_wait_event, |
| 441 | + .met_wait_event_intr = n516_wait_event_intr, |
| 442 | + .get_panel_type = n516_get_panel_type, |
| 443 | + .cleanup = n516_cleanup, |
| 444 | +}; |
| 445 | + |
| 446 | +static int __init n516_init(void) |
| 447 | +{ |
| 448 | + int ret; |
| 449 | + |
| 450 | + /* Keep the metronome off, until its driver is loaded */ |
| 451 | + ret = gpio_request(GPIO_DISPLAY_OFF_N, "Display off"); |
| 452 | + if (ret) |
| 453 | + return ret; |
| 454 | + |
| 455 | + gpio_direction_output(GPIO_DISPLAY_OFF_N, 1); |
| 456 | + |
| 457 | + /* before anything else, we request notification for any fb |
| 458 | + * creation events */ |
| 459 | + fb_register_client(&n516_fb_notif); |
| 460 | + |
| 461 | + n516_device = platform_device_alloc("metronomefb", -1); |
| 462 | + if (!n516_device) |
| 463 | + return -ENOMEM; |
| 464 | + |
| 465 | + /* the n516_board that will be seen by metronomefb is a copy */ |
| 466 | + platform_device_add_data(n516_device, &n516_board, |
| 467 | + sizeof(n516_board)); |
| 468 | + |
| 469 | + n516_presetup_fb(); |
| 470 | + |
| 471 | + return 0; |
| 472 | +} |
| 473 | +module_init(n516_init); |
| 474 | + |
| 475 | +MODULE_DESCRIPTION("board driver for n516 display"); |
| 476 | +MODULE_AUTHOR("Yauhen Kharuzhy"); |
| 477 | +MODULE_LICENSE("GPL"); |
| 478 | --- /dev/null |
| 479 | +++ b/arch/mips/jz4740/board-n516.c |
| 480 | @@ -0,0 +1,182 @@ |
| 481 | +/* |
| 482 | + * linux/arch/mips/jz4740/board-516.c |
| 483 | + * |
| 484 | + * JZ4740 n516 board setup routines. |
| 485 | + * |
| 486 | + * Copyright (c) 2009, Yauhen Kharuzhy <jekhor@gmail.com> |
| 487 | + * |
| 488 | + * This program is free software; you can redistribute it and/or modify |
| 489 | + * it under the terms of the GNU General Public License as published by |
| 490 | + * the Free Software Foundation; either version 2 of the License, or |
| 491 | + * (at your option) any later version. |
| 492 | + */ |
| 493 | + |
| 494 | +#include <linux/init.h> |
| 495 | +#include <linux/sched.h> |
| 496 | +#include <linux/ioport.h> |
| 497 | +#include <linux/mm.h> |
| 498 | +#include <linux/console.h> |
| 499 | +#include <linux/delay.h> |
| 500 | +#include <linux/i2c.h> |
| 501 | +#include <linux/platform_device.h> |
| 502 | +#include <linux/mtd/mtd.h> |
| 503 | +#include <linux/leds.h> |
| 504 | + |
| 505 | +#include <linux/power_supply.h> |
| 506 | +#include <linux/power/gpio-charger.h> |
| 507 | + |
| 508 | +#include <linux/i2c.h> |
| 509 | + |
| 510 | +#include <asm/mach-jz4740/jz4740_mmc.h> |
| 511 | +#include <asm/mach-jz4740/jz4740_nand.h> |
| 512 | + |
| 513 | +#include <asm/mach-jz4740/board-n516.h> |
| 514 | +#include <asm/mach-jz4740/platform.h> |
| 515 | + |
| 516 | +#include "clock.h" |
| 517 | + |
| 518 | +static long n516_panic_blink(int state) |
| 519 | +{ |
| 520 | + gpio_set_value(GPIO_LED_ENABLE, state ? 1 : 0); |
| 521 | + return 0; |
| 522 | +} |
| 523 | + |
| 524 | +static void __init board_gpio_setup(void) |
| 525 | +{ |
| 526 | +/* jz_gpio_enable_pullup(JZ_GPIO_PORTD(23)); |
| 527 | + jz_gpio_enable_pullup(JZ_GPIO_PORTD(24));*/ |
| 528 | +} |
| 529 | + |
| 530 | +static const struct i2c_board_info n516_i2c_board_info[] = { |
| 531 | + { |
| 532 | + .type = "LPC524", |
| 533 | + .addr = 0x54, |
| 534 | + }, |
| 535 | + { |
| 536 | + .type = "lm75a", |
| 537 | + .addr = 0x48, |
| 538 | + } |
| 539 | +}; |
| 540 | + |
| 541 | +static struct jz4740_mmc_platform_data n516_mmc_pdata = { |
| 542 | + .gpio_card_detect = GPIO_SD_CD_N, |
| 543 | + .card_detect_active_low = 1, |
| 544 | + .gpio_read_only = -1, |
| 545 | + .gpio_power = GPIO_SD_VCC_EN_N, |
| 546 | + .power_active_low = 1, |
| 547 | +}; |
| 548 | + |
| 549 | +static struct gpio_led n516_leds[] = { |
| 550 | + { |
| 551 | + .name = "n516:blue:power", |
| 552 | + .gpio = GPIO_LED_ENABLE, |
| 553 | + .default_state = LEDS_GPIO_DEFSTATE_ON, |
| 554 | + .default_trigger = "nand-disk", |
| 555 | + } |
| 556 | +}; |
| 557 | + |
| 558 | +static struct gpio_led_platform_data n516_leds_pdata = { |
| 559 | + .leds = n516_leds, |
| 560 | + .num_leds = ARRAY_SIZE(n516_leds), |
| 561 | +}; |
| 562 | + |
| 563 | +static struct platform_device n516_leds_device = { |
| 564 | + .name = "leds-gpio", |
| 565 | + .id = -1, |
| 566 | + .dev = { |
| 567 | + .platform_data = &n516_leds_pdata, |
| 568 | + }, |
| 569 | +}; |
| 570 | + |
| 571 | +static struct mtd_partition n516_partitions[] = { |
| 572 | + { .name = "NAND BOOT partition", |
| 573 | + .offset = 0 * 0x100000, |
| 574 | + .size = 4 * 0x100000, |
| 575 | + }, |
| 576 | + { .name = "NAND KERNEL partition", |
| 577 | + .offset = 4 * 0x100000, |
| 578 | + .size = 4 * 0x100000, |
| 579 | + }, |
| 580 | + { .name = "NAND ROOTFS partition", |
| 581 | + .offset = 8 * 0x100000, |
| 582 | + .size = 504 * 0x100000, |
| 583 | + }, |
| 584 | +}; |
| 585 | + |
| 586 | +static struct nand_ecclayout n516_ecclayout = { |
| 587 | +/* .eccbytes = 36, |
| 588 | + .eccpos = { |
| 589 | + 6, 7, 8, 9, 10, 11, 12, 13, 14, |
| 590 | + 15, 16, 17, 18, 19, 20, 21, 22, 23, |
| 591 | + 24, 25, 26, 27, 28, 29, 30, 31, 32, |
| 592 | + 33, 34, 35, 36, 37, 38, 39, 40, 41, |
| 593 | + },*/ |
| 594 | + .oobfree = { |
| 595 | + { |
| 596 | + .offset = 2, |
| 597 | + .length = 4 |
| 598 | + }, |
| 599 | + { |
| 600 | + .offset = 42, |
| 601 | + .length = 22, |
| 602 | + } |
| 603 | + } |
| 604 | +}; |
| 605 | + |
| 606 | +static struct jz_nand_platform_data n516_nand_pdata = { |
| 607 | + .ecc_layout = &n516_ecclayout, |
| 608 | + .partitions = n516_partitions, |
| 609 | + .num_partitions = ARRAY_SIZE(n516_partitions), |
| 610 | + .busy_gpio = 94, |
| 611 | +}; |
| 612 | + |
| 613 | +static char *n516_batteries[] = { |
| 614 | + "n516_battery", |
| 615 | +}; |
| 616 | + |
| 617 | +static struct gpio_charger_platform_data n516_charger_pdata = { |
| 618 | + .name = "usb", |
| 619 | + .type = POWER_SUPPLY_TYPE_USB, |
| 620 | + .gpio = GPIO_USB_DETECT, |
| 621 | + .gpio_active_low = 1, |
| 622 | + .batteries = n516_batteries, |
| 623 | + .num_batteries = ARRAY_SIZE(n516_batteries), |
| 624 | +}; |
| 625 | + |
| 626 | +static struct platform_device n516_charger_device = { |
| 627 | + .name = "gpio-charger", |
| 628 | + .dev = { |
| 629 | + .platform_data = &n516_charger_pdata, |
| 630 | + }, |
| 631 | +}; |
| 632 | + |
| 633 | +static struct platform_device *n516_devices[] __initdata = { |
| 634 | + &jz4740_nand_device, |
| 635 | + &n516_leds_device, |
| 636 | + &jz4740_mmc_device, |
| 637 | + &jz4740_i2s_device, |
| 638 | + &jz4740_codec_device, |
| 639 | + &jz4740_rtc_device, |
| 640 | + &jz4740_udc_device, |
| 641 | + &jz4740_i2c_device, |
| 642 | + &n516_charger_device, |
| 643 | +}; |
| 644 | + |
| 645 | +struct jz4740_clock_board_data jz4740_clock_bdata = { |
| 646 | + .ext_rate = 12000000, |
| 647 | + .rtc_rate = 32768, |
| 648 | +}; |
| 649 | + |
| 650 | +static int n516_setup_platform(void) |
| 651 | +{ |
| 652 | + jz4740_serial_device_register(); |
| 653 | + board_gpio_setup(); |
| 654 | + |
| 655 | + panic_blink = n516_panic_blink; |
| 656 | + i2c_register_board_info(0, n516_i2c_board_info, ARRAY_SIZE(n516_i2c_board_info)); |
| 657 | + jz4740_mmc_device.dev.platform_data = &n516_mmc_pdata; |
| 658 | + jz4740_nand_device.dev.platform_data = &n516_nand_pdata; |
| 659 | + |
| 660 | + return platform_add_devices(n516_devices, ARRAY_SIZE(n516_devices)); |
| 661 | +} |
| 662 | +arch_initcall(n516_setup_platform); |
| 663 | |