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mach-mx27_3ds.c
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1 /*
2  * Copyright 2009 Freescale Semiconductor, Inc. All Rights Reserved.
3  *
4  * Author: Fabio Estevam <[email protected]>
5  *
6  * This program is free software; you can redistribute it and/or modify
7  * it under the terms of the GNU General Public License as published by
8  * the Free Software Foundation; either version 2 of the License, or
9  * (at your option) any later version.
10  *
11  * This program is distributed in the hope that it will be useful,
12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14  * GNU General Public License for more details.
15  */
16 
17 /*
18  * This machine is known as:
19  * - i.MX27 3-Stack Development System
20  * - i.MX27 Platform Development Kit (i.MX27 PDK)
21  */
22 
23 #include <linux/platform_device.h>
24 #include <linux/gpio.h>
25 #include <linux/irq.h>
26 #include <linux/usb/otg.h>
27 #include <linux/usb/ulpi.h>
28 #include <linux/delay.h>
29 #include <linux/mfd/mc13783.h>
30 #include <linux/spi/spi.h>
32 #include <linux/spi/l4f00242t03.h>
33 
34 #include <media/soc_camera.h>
35 
36 #include <asm/mach-types.h>
37 #include <asm/mach/arch.h>
38 #include <asm/mach/time.h>
39 #include <mach/hardware.h>
40 #include <mach/common.h>
41 #include <mach/iomux-mx27.h>
42 #include <mach/ulpi.h>
43 #include <mach/3ds_debugboard.h>
44 
45 #include "devices-imx27.h"
46 
47 #define SD1_EN_GPIO IMX_GPIO_NR(2, 25)
48 #define OTG_PHY_RESET_GPIO IMX_GPIO_NR(2, 23)
49 #define SPI2_SS0 IMX_GPIO_NR(4, 21)
50 #define PMIC_INT IMX_GPIO_NR(3, 14)
51 #define SPI1_SS0 IMX_GPIO_NR(4, 28)
52 #define SD1_CD IMX_GPIO_NR(2, 26)
53 #define LCD_RESET IMX_GPIO_NR(1, 3)
54 #define LCD_ENABLE IMX_GPIO_NR(1, 31)
55 #define CSI_PWRDWN IMX_GPIO_NR(4, 19)
56 #define CSI_RESET IMX_GPIO_NR(3, 6)
57 
58 static const int mx27pdk_pins[] __initconst = {
59  /* UART1 */
64  /* FEC */
83  /* SDHC1 */
91  /* OTG */
105  /* CSPI1 */
111  /* CSPI2 */
116  /* I2C1 */
119  /* PMIC INT */
121  /* LCD */
122  PA5_PF_LSCLK,
123  PA6_PF_LD0,
124  PA7_PF_LD1,
125  PA8_PF_LD2,
126  PA9_PF_LD3,
127  PA10_PF_LD4,
128  PA11_PF_LD5,
129  PA12_PF_LD6,
130  PA13_PF_LD7,
131  PA14_PF_LD8,
132  PA15_PF_LD9,
133  PA16_PF_LD10,
134  PA17_PF_LD11,
135  PA18_PF_LD12,
136  PA19_PF_LD13,
137  PA20_PF_LD14,
138  PA21_PF_LD15,
139  PA22_PF_LD16,
140  PA23_PF_LD17,
146  /* CSI */
161  /* SSI4 */
166 };
167 
168 static struct gpio mx27_3ds_camera_gpios[] = {
169  { CSI_PWRDWN, GPIOF_OUT_INIT_HIGH, "camera-power" },
170  { CSI_RESET, GPIOF_OUT_INIT_HIGH, "camera-reset" },
171 };
172 
173 static const struct imxuart_platform_data uart_pdata __initconst = {
174  .flags = IMXUART_HAVE_RTSCTS,
175 };
176 
177 /*
178  * Matrix keyboard
179  */
180 
181 static const uint32_t mx27_3ds_keymap[] = {
182  KEY(0, 0, KEY_UP),
183  KEY(0, 1, KEY_DOWN),
184  KEY(1, 0, KEY_RIGHT),
185  KEY(1, 1, KEY_LEFT),
186  KEY(1, 2, KEY_ENTER),
187  KEY(2, 0, KEY_F6),
188  KEY(2, 1, KEY_F8),
189  KEY(2, 2, KEY_F9),
190  KEY(2, 3, KEY_F10),
191 };
192 
193 static const struct matrix_keymap_data mx27_3ds_keymap_data __initconst = {
194  .keymap = mx27_3ds_keymap,
195  .keymap_size = ARRAY_SIZE(mx27_3ds_keymap),
196 };
197 
198 static int mx27_3ds_sdhc1_init(struct device *dev, irq_handler_t detect_irq,
199  void *data)
200 {
201  return request_irq(gpio_to_irq(SD1_CD), detect_irq,
202  IRQF_TRIGGER_FALLING | IRQF_TRIGGER_RISING, "sdhc1-card-detect", data);
203 }
204 
205 static void mx27_3ds_sdhc1_exit(struct device *dev, void *data)
206 {
207  free_irq(gpio_to_irq(SD1_CD), data);
208 }
209 
210 static const struct imxmmc_platform_data sdhc1_pdata __initconst = {
211  .init = mx27_3ds_sdhc1_init,
212  .exit = mx27_3ds_sdhc1_exit,
213 };
214 
215 static void mx27_3ds_sdhc1_enable_level_translator(void)
216 {
217  /* Turn on TXB0108 OE pin */
218  gpio_request(SD1_EN_GPIO, "sd1_enable");
220 }
221 
222 
223 static int otg_phy_init(void)
224 {
225  gpio_request(OTG_PHY_RESET_GPIO, "usb-otg-reset");
227  mdelay(1);
229  return 0;
230 }
231 
232 static int mx27_3ds_otg_init(struct platform_device *pdev)
233 {
235 }
236 
237 static struct mxc_usbh_platform_data otg_pdata __initdata = {
238  .init = mx27_3ds_otg_init,
239  .portsc = MXC_EHCI_MODE_ULPI,
240 };
241 
242 static const struct fsl_usb2_platform_data otg_device_pdata __initconst = {
243  .operating_mode = FSL_USB2_DR_DEVICE,
244  .phy_mode = FSL_USB2_PHY_ULPI,
245 };
246 
247 static bool otg_mode_host __initdata;
248 
249 static int __init mx27_3ds_otg_mode(char *options)
250 {
251  if (!strcmp(options, "host"))
252  otg_mode_host = true;
253  else if (!strcmp(options, "device"))
254  otg_mode_host = false;
255  else
256  pr_info("otg_mode neither \"host\" nor \"device\". "
257  "Defaulting to device\n");
258  return 1;
259 }
260 __setup("otg_mode=", mx27_3ds_otg_mode);
261 
262 /* Regulators */
263 static struct regulator_init_data gpo_init = {
264  .constraints = {
265  .boot_on = 1,
266  .always_on = 1,
267  }
268 };
269 
270 static struct regulator_consumer_supply vmmc1_consumers[] = {
271  REGULATOR_SUPPLY("vcore", "spi0.0"),
272  REGULATOR_SUPPLY("cmos_2v8", "soc-camera-pdrv.0"),
273 };
274 
275 static struct regulator_init_data vmmc1_init = {
276  .constraints = {
277  .min_uV = 2800000,
278  .max_uV = 2800000,
279  .apply_uV = 1,
280  .valid_ops_mask = REGULATOR_CHANGE_VOLTAGE |
282  },
283  .num_consumer_supplies = ARRAY_SIZE(vmmc1_consumers),
284  .consumer_supplies = vmmc1_consumers,
285 };
286 
287 static struct regulator_consumer_supply vgen_consumers[] = {
288  REGULATOR_SUPPLY("vdd", "spi0.0"),
289 };
290 
291 static struct regulator_init_data vgen_init = {
292  .constraints = {
293  .min_uV = 1800000,
294  .max_uV = 1800000,
295  .valid_ops_mask = REGULATOR_CHANGE_VOLTAGE,
296  },
297  .num_consumer_supplies = ARRAY_SIZE(vgen_consumers),
298  .consumer_supplies = vgen_consumers,
299 };
300 
301 static struct regulator_consumer_supply vvib_consumers[] = {
302  REGULATOR_SUPPLY("cmos_vcore", "soc-camera-pdrv.0"),
303 };
304 
305 static struct regulator_init_data vvib_init = {
306  .constraints = {
307  .min_uV = 1300000,
308  .max_uV = 1300000,
309  .apply_uV = 1,
310  .valid_ops_mask = REGULATOR_CHANGE_VOLTAGE |
312  },
313  .num_consumer_supplies = ARRAY_SIZE(vvib_consumers),
314  .consumer_supplies = vvib_consumers,
315 };
316 
317 static struct mc13xxx_regulator_init_data mx27_3ds_regulators[] = {
318  {
319  .id = MC13783_REG_VMMC1,
320  .init_data = &vmmc1_init,
321  }, {
322  .id = MC13783_REG_VGEN,
323  .init_data = &vgen_init,
324  }, {
325  .id = MC13783_REG_GPO1, /* Turn on 1.8V */
326  .init_data = &gpo_init,
327  }, {
328  .id = MC13783_REG_GPO3, /* Turn on 3.3V */
329  .init_data = &gpo_init,
330  }, {
331  .id = MC13783_REG_VVIB, /* Power OV2640 */
332  .init_data = &vvib_init,
333  },
334 };
335 
336 /* MC13783 */
337 static struct mc13xxx_codec_platform_data mx27_3ds_codec = {
338  .dac_ssi_port = MC13783_SSI1_PORT,
339  .adc_ssi_port = MC13783_SSI1_PORT,
340 };
341 
342 static struct mc13xxx_platform_data mc13783_pdata = {
343  .regulators = {
344  .regulators = mx27_3ds_regulators,
345  .num_regulators = ARRAY_SIZE(mx27_3ds_regulators),
346 
347  },
350  .codec = &mx27_3ds_codec,
351 };
352 
353 static struct imx_ssi_platform_data mx27_3ds_ssi_pdata = {
354  .flags = IMX_SSI_DMA | IMX_SSI_NET,
355 };
356 
357 /* SPI */
358 static int spi1_chipselect[] = {SPI1_SS0};
359 
360 static const struct spi_imx_master spi1_pdata __initconst = {
361  .chipselect = spi1_chipselect,
362  .num_chipselect = ARRAY_SIZE(spi1_chipselect),
363 };
364 
365 static int spi2_chipselect[] = {SPI2_SS0};
366 
367 static const struct spi_imx_master spi2_pdata __initconst = {
368  .chipselect = spi2_chipselect,
369  .num_chipselect = ARRAY_SIZE(spi2_chipselect),
370 };
371 
372 static int mx27_3ds_camera_power(struct device *dev, int on)
373 {
374  /* enable or disable the camera */
375  pr_debug("%s: %s the camera\n", __func__, on ? "ENABLE" : "DISABLE");
376  gpio_set_value(CSI_PWRDWN, on ? 0 : 1);
377 
378  if (!on)
379  goto out;
380 
381  /* If enabled, give a reset impulse */
383  msleep(20);
385  msleep(100);
386 
387 out:
388  return 0;
389 }
390 
391 static struct i2c_board_info mx27_3ds_i2c_camera = {
392  I2C_BOARD_INFO("ov2640", 0x30),
393 };
394 
395 static struct regulator_bulk_data mx27_3ds_camera_regs[] = {
396  { .supply = "cmos_vcore" },
397  { .supply = "cmos_2v8" },
398 };
399 
400 static struct soc_camera_link iclink_ov2640 = {
401  .bus_id = 0,
402  .board_info = &mx27_3ds_i2c_camera,
403  .i2c_adapter_id = 0,
404  .power = mx27_3ds_camera_power,
405  .regulators = mx27_3ds_camera_regs,
406  .num_regulators = ARRAY_SIZE(mx27_3ds_camera_regs),
407 };
408 
409 static struct platform_device mx27_3ds_ov2640 = {
410  .name = "soc-camera-pdrv",
411  .id = 0,
412  .dev = {
413  .platform_data = &iclink_ov2640,
414  },
415 };
416 
417 static struct imx_fb_videomode mx27_3ds_modes[] = {
418  { /* 480x640 @ 60 Hz */
419  .mode = {
420  .name = "Epson-VGA",
421  .refresh = 60,
422  .xres = 480,
423  .yres = 640,
424  .pixclock = 41701,
425  .left_margin = 20,
426  .right_margin = 41,
427  .upper_margin = 10,
428  .lower_margin = 5,
429  .hsync_len = 20,
430  .vsync_len = 10,
431  .sync = FB_SYNC_OE_ACT_HIGH |
433  .vmode = FB_VMODE_NONINTERLACED,
434  .flag = 0,
435  },
436  .bpp = 16,
437  .pcr = 0xFAC08B82,
438  },
439 };
440 
441 static const struct imx_fb_platform_data mx27_3ds_fb_data __initconst = {
442  .mode = mx27_3ds_modes,
443  .num_modes = ARRAY_SIZE(mx27_3ds_modes),
444  .pwmr = 0x00A903FF,
445  .lscr1 = 0x00120300,
446  .dmacr = 0x00020010,
447 };
448 
449 /* LCD */
450 static struct l4f00242t03_pdata mx27_3ds_lcd_pdata = {
451  .reset_gpio = LCD_RESET,
452  .data_enable_gpio = LCD_ENABLE,
453 };
454 
455 static struct spi_board_info mx27_3ds_spi_devs[] __initdata = {
456  {
457  .modalias = "mc13783",
458  .max_speed_hz = 1000000,
459  .bus_num = 1,
460  .chip_select = 0, /* SS0 */
461  .platform_data = &mc13783_pdata,
462  /* irq number is run-time assigned */
463  .mode = SPI_CS_HIGH,
464  }, {
465  .modalias = "l4f00242t03",
466  .max_speed_hz = 5000000,
467  .bus_num = 0,
468  .chip_select = 0, /* SS0 */
469  .platform_data = &mx27_3ds_lcd_pdata,
470  },
471 };
472 
473 static struct platform_device *devices[] __initdata = {
474  &mx27_3ds_ov2640,
475 };
476 
477 static const struct mx2_camera_platform_data mx27_3ds_cam_pdata __initconst = {
478  .clk = 26000000,
479 };
480 
481 static const struct imxi2c_platform_data mx27_3ds_i2c0_data __initconst = {
482  .bitrate = 100000,
483 };
484 
485 static void __init mx27pdk_init(void)
486 {
487  int ret;
488  imx27_soc_init();
489 
490  mxc_gpio_setup_multiple_pins(mx27pdk_pins, ARRAY_SIZE(mx27pdk_pins),
491  "mx27pdk");
492  mx27_3ds_sdhc1_enable_level_translator();
493  imx27_add_imx_uart0(&uart_pdata);
495  imx27_add_imx_keypad(&mx27_3ds_keymap_data);
496  imx27_add_mxc_mmc(0, &sdhc1_pdata);
498  otg_phy_init();
499 
500  if (otg_mode_host) {
501  otg_pdata.otg = imx_otg_ulpi_create(ULPI_OTG_DRVVBUS |
503 
504  if (otg_pdata.otg)
505  imx27_add_mxc_ehci_otg(&otg_pdata);
506  }
507 
508  if (!otg_mode_host)
509  imx27_add_fsl_usb2_udc(&otg_device_pdata);
510 
511  imx27_add_spi_imx1(&spi2_pdata);
512  imx27_add_spi_imx0(&spi1_pdata);
513  mx27_3ds_spi_devs[0].irq = gpio_to_irq(PMIC_INT);
514  spi_register_board_info(mx27_3ds_spi_devs,
515  ARRAY_SIZE(mx27_3ds_spi_devs));
516 
518  pr_warn("Init of the debugboard failed, all devices on the debugboard are unusable.\n");
519  imx27_add_imx_i2c(0, &mx27_3ds_i2c0_data);
520  platform_add_devices(devices, ARRAY_SIZE(devices));
521  imx27_add_imx_fb(&mx27_3ds_fb_data);
522 
523  ret = gpio_request_array(mx27_3ds_camera_gpios,
524  ARRAY_SIZE(mx27_3ds_camera_gpios));
525  if (ret) {
526  pr_err("Failed to request camera gpios");
527  iclink_ov2640.power = NULL;
528  }
529 
530  imx27_add_mx2_camera(&mx27_3ds_cam_pdata);
531  imx27_add_imx_ssi(0, &mx27_3ds_ssi_pdata);
532 
533  imx_add_platform_device("imx_mc13783", 0, NULL, 0, NULL, 0);
534 }
535 
536 static void __init mx27pdk_timer_init(void)
537 {
538  mx27_clocks_init(26000000);
539 }
540 
541 static struct sys_timer mx27pdk_timer = {
542  .init = mx27pdk_timer_init,
543 };
544 
545 MACHINE_START(MX27_3DS, "Freescale MX27PDK")
546  /* maintainer: Freescale Semiconductor, Inc. */
547  .atag_offset = 0x100,
548  .map_io = mx27_map_io,
549  .init_early = imx27_init_early,
550  .init_irq = mx27_init_irq,
551  .handle_irq = imx27_handle_irq,
552  .timer = &mx27pdk_timer,
553  .init_machine = mx27pdk_init,
554  .restart = mxc_restart,