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TOMOYO Linux Cross Reference
Linux/arch/arm/mach-imx/mach-mx31_3ds.c

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  1 /*
  2  *  Copyright 2008 Freescale Semiconductor, Inc. All Rights Reserved.
  3  *
  4  * This program is free software; you can redistribute it and/or modify
  5  * it under the terms of the GNU General Public License as published by
  6  * the Free Software Foundation; either version 2 of the License, or
  7  * (at your option) any later version.
  8  *
  9  * This program is distributed in the hope that it will be useful,
 10  * but WITHOUT ANY WARRANTY; without even the implied warranty of
 11  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 12  * GNU General Public License for more details.
 13  */
 14 
 15 #include <linux/delay.h>
 16 #include <linux/dma-mapping.h>
 17 #include <linux/types.h>
 18 #include <linux/init.h>
 19 #include <linux/clk.h>
 20 #include <linux/irq.h>
 21 #include <linux/gpio.h>
 22 #include <linux/platform_device.h>
 23 #include <linux/mfd/mc13783.h>
 24 #include <linux/spi/spi.h>
 25 #include <linux/spi/l4f00242t03.h>
 26 #include <linux/regulator/machine.h>
 27 #include <linux/usb/otg.h>
 28 #include <linux/usb/ulpi.h>
 29 #include <linux/memblock.h>
 30 
 31 #include <media/soc_camera.h>
 32 
 33 #include <asm/mach-types.h>
 34 #include <asm/mach/arch.h>
 35 #include <asm/mach/time.h>
 36 #include <asm/memory.h>
 37 #include <asm/mach/map.h>
 38 #include <asm/memblock.h>
 39 
 40 #include "3ds_debugboard.h"
 41 #include "common.h"
 42 #include "devices-imx31.h"
 43 #include "ehci.h"
 44 #include "hardware.h"
 45 #include "iomux-mx3.h"
 46 #include "ulpi.h"
 47 
 48 static int mx31_3ds_pins[] = {
 49         /* UART1 */
 50         MX31_PIN_CTS1__CTS1,
 51         MX31_PIN_RTS1__RTS1,
 52         MX31_PIN_TXD1__TXD1,
 53         MX31_PIN_RXD1__RXD1,
 54         IOMUX_MODE(MX31_PIN_GPIO1_1, IOMUX_CONFIG_GPIO),
 55         /*SPI0*/
 56         IOMUX_MODE(MX31_PIN_DSR_DCE1, IOMUX_CONFIG_ALT1),
 57         IOMUX_MODE(MX31_PIN_RI_DCE1, IOMUX_CONFIG_ALT1),
 58         /* SPI 1 */
 59         MX31_PIN_CSPI2_SCLK__SCLK,
 60         MX31_PIN_CSPI2_MOSI__MOSI,
 61         MX31_PIN_CSPI2_MISO__MISO,
 62         MX31_PIN_CSPI2_SPI_RDY__SPI_RDY,
 63         MX31_PIN_CSPI2_SS0__SS0,
 64         MX31_PIN_CSPI2_SS2__SS2, /*CS for MC13783 */
 65         /* MC13783 IRQ */
 66         IOMUX_MODE(MX31_PIN_GPIO1_3, IOMUX_CONFIG_GPIO),
 67         /* USB OTG reset */
 68         IOMUX_MODE(MX31_PIN_USB_PWR, IOMUX_CONFIG_GPIO),
 69         /* USB OTG */
 70         MX31_PIN_USBOTG_DATA0__USBOTG_DATA0,
 71         MX31_PIN_USBOTG_DATA1__USBOTG_DATA1,
 72         MX31_PIN_USBOTG_DATA2__USBOTG_DATA2,
 73         MX31_PIN_USBOTG_DATA3__USBOTG_DATA3,
 74         MX31_PIN_USBOTG_DATA4__USBOTG_DATA4,
 75         MX31_PIN_USBOTG_DATA5__USBOTG_DATA5,
 76         MX31_PIN_USBOTG_DATA6__USBOTG_DATA6,
 77         MX31_PIN_USBOTG_DATA7__USBOTG_DATA7,
 78         MX31_PIN_USBOTG_CLK__USBOTG_CLK,
 79         MX31_PIN_USBOTG_DIR__USBOTG_DIR,
 80         MX31_PIN_USBOTG_NXT__USBOTG_NXT,
 81         MX31_PIN_USBOTG_STP__USBOTG_STP,
 82         /*Keyboard*/
 83         MX31_PIN_KEY_ROW0_KEY_ROW0,
 84         MX31_PIN_KEY_ROW1_KEY_ROW1,
 85         MX31_PIN_KEY_ROW2_KEY_ROW2,
 86         MX31_PIN_KEY_COL0_KEY_COL0,
 87         MX31_PIN_KEY_COL1_KEY_COL1,
 88         MX31_PIN_KEY_COL2_KEY_COL2,
 89         MX31_PIN_KEY_COL3_KEY_COL3,
 90         /* USB Host 2 */
 91         IOMUX_MODE(MX31_PIN_USBH2_CLK, IOMUX_CONFIG_FUNC),
 92         IOMUX_MODE(MX31_PIN_USBH2_DIR, IOMUX_CONFIG_FUNC),
 93         IOMUX_MODE(MX31_PIN_USBH2_NXT, IOMUX_CONFIG_FUNC),
 94         IOMUX_MODE(MX31_PIN_USBH2_STP, IOMUX_CONFIG_FUNC),
 95         IOMUX_MODE(MX31_PIN_USBH2_DATA0, IOMUX_CONFIG_FUNC),
 96         IOMUX_MODE(MX31_PIN_USBH2_DATA1, IOMUX_CONFIG_FUNC),
 97         IOMUX_MODE(MX31_PIN_PC_VS2, IOMUX_CONFIG_ALT1),
 98         IOMUX_MODE(MX31_PIN_PC_BVD1, IOMUX_CONFIG_ALT1),
 99         IOMUX_MODE(MX31_PIN_PC_BVD2, IOMUX_CONFIG_ALT1),
100         IOMUX_MODE(MX31_PIN_PC_RST, IOMUX_CONFIG_ALT1),
101         IOMUX_MODE(MX31_PIN_IOIS16, IOMUX_CONFIG_ALT1),
102         IOMUX_MODE(MX31_PIN_PC_RW_B, IOMUX_CONFIG_ALT1),
103         /* USB Host2 reset */
104         IOMUX_MODE(MX31_PIN_USB_BYP, IOMUX_CONFIG_GPIO),
105         /* I2C1 */
106         MX31_PIN_I2C_CLK__I2C1_SCL,
107         MX31_PIN_I2C_DAT__I2C1_SDA,
108         /* SDHC1 */
109         MX31_PIN_SD1_DATA3__SD1_DATA3,
110         MX31_PIN_SD1_DATA2__SD1_DATA2,
111         MX31_PIN_SD1_DATA1__SD1_DATA1,
112         MX31_PIN_SD1_DATA0__SD1_DATA0,
113         MX31_PIN_SD1_CLK__SD1_CLK,
114         MX31_PIN_SD1_CMD__SD1_CMD,
115         MX31_PIN_GPIO3_1__GPIO3_1, /* Card detect */
116         MX31_PIN_GPIO3_0__GPIO3_0, /* OE */
117         /* Framebuffer */
118         MX31_PIN_LD0__LD0,
119         MX31_PIN_LD1__LD1,
120         MX31_PIN_LD2__LD2,
121         MX31_PIN_LD3__LD3,
122         MX31_PIN_LD4__LD4,
123         MX31_PIN_LD5__LD5,
124         MX31_PIN_LD6__LD6,
125         MX31_PIN_LD7__LD7,
126         MX31_PIN_LD8__LD8,
127         MX31_PIN_LD9__LD9,
128         MX31_PIN_LD10__LD10,
129         MX31_PIN_LD11__LD11,
130         MX31_PIN_LD12__LD12,
131         MX31_PIN_LD13__LD13,
132         MX31_PIN_LD14__LD14,
133         MX31_PIN_LD15__LD15,
134         MX31_PIN_LD16__LD16,
135         MX31_PIN_LD17__LD17,
136         MX31_PIN_VSYNC3__VSYNC3,
137         MX31_PIN_HSYNC__HSYNC,
138         MX31_PIN_FPSHIFT__FPSHIFT,
139         MX31_PIN_CONTRAST__CONTRAST,
140         /* CSI */
141         MX31_PIN_CSI_D6__CSI_D6,
142         MX31_PIN_CSI_D7__CSI_D7,
143         MX31_PIN_CSI_D8__CSI_D8,
144         MX31_PIN_CSI_D9__CSI_D9,
145         MX31_PIN_CSI_D10__CSI_D10,
146         MX31_PIN_CSI_D11__CSI_D11,
147         MX31_PIN_CSI_D12__CSI_D12,
148         MX31_PIN_CSI_D13__CSI_D13,
149         MX31_PIN_CSI_D14__CSI_D14,
150         MX31_PIN_CSI_D15__CSI_D15,
151         MX31_PIN_CSI_HSYNC__CSI_HSYNC,
152         MX31_PIN_CSI_MCLK__CSI_MCLK,
153         MX31_PIN_CSI_PIXCLK__CSI_PIXCLK,
154         MX31_PIN_CSI_VSYNC__CSI_VSYNC,
155         MX31_PIN_CSI_D5__GPIO3_5, /* CMOS PWDN */
156         IOMUX_MODE(MX31_PIN_RI_DTE1, IOMUX_CONFIG_GPIO), /* CMOS reset */
157         /* SSI */
158         MX31_PIN_STXD4__STXD4,
159         MX31_PIN_SRXD4__SRXD4,
160         MX31_PIN_SCK4__SCK4,
161         MX31_PIN_SFS4__SFS4,
162 };
163 
164 /*
165  * Camera support
166  */
167 static phys_addr_t mx3_camera_base __initdata;
168 #define MX31_3DS_CAMERA_BUF_SIZE SZ_8M
169 
170 #define MX31_3DS_GPIO_CAMERA_PW IOMUX_TO_GPIO(MX31_PIN_CSI_D5)
171 #define MX31_3DS_GPIO_CAMERA_RST IOMUX_TO_GPIO(MX31_PIN_RI_DTE1)
172 
173 static struct gpio mx31_3ds_camera_gpios[] = {
174         { MX31_3DS_GPIO_CAMERA_PW, GPIOF_OUT_INIT_HIGH, "camera-power" },
175         { MX31_3DS_GPIO_CAMERA_RST, GPIOF_OUT_INIT_HIGH, "camera-reset" },
176 };
177 
178 static const struct mx3_camera_pdata mx31_3ds_camera_pdata __initconst = {
179         .flags = MX3_CAMERA_DATAWIDTH_10,
180         .mclk_10khz = 2600,
181 };
182 
183 static int __init mx31_3ds_init_camera(void)
184 {
185         int dma, ret = -ENOMEM;
186         struct platform_device *pdev =
187                 imx31_alloc_mx3_camera(&mx31_3ds_camera_pdata);
188 
189         if (IS_ERR(pdev))
190                 return PTR_ERR(pdev);
191 
192         if (!mx3_camera_base)
193                 goto err;
194 
195         dma = dma_declare_coherent_memory(&pdev->dev,
196                                         mx3_camera_base, mx3_camera_base,
197                                         MX31_3DS_CAMERA_BUF_SIZE,
198                                         DMA_MEMORY_MAP | DMA_MEMORY_EXCLUSIVE);
199 
200         if (!(dma & DMA_MEMORY_MAP))
201                 goto err;
202 
203         ret = platform_device_add(pdev);
204         if (ret)
205 err:
206                 platform_device_put(pdev);
207 
208         return ret;
209 }
210 
211 static int mx31_3ds_camera_power(struct device *dev, int on)
212 {
213         /* enable or disable the camera */
214         pr_debug("%s: %s the camera\n", __func__, on ? "ENABLE" : "DISABLE");
215         gpio_set_value(MX31_3DS_GPIO_CAMERA_PW, on ? 0 : 1);
216 
217         if (!on)
218                 goto out;
219 
220         /* If enabled, give a reset impulse */
221         gpio_set_value(MX31_3DS_GPIO_CAMERA_RST, 0);
222         msleep(20);
223         gpio_set_value(MX31_3DS_GPIO_CAMERA_RST, 1);
224         msleep(100);
225 
226 out:
227         return 0;
228 }
229 
230 static struct i2c_board_info mx31_3ds_i2c_camera = {
231         I2C_BOARD_INFO("ov2640", 0x30),
232 };
233 
234 static struct regulator_bulk_data mx31_3ds_camera_regs[] = {
235         { .supply = "cmos_vcore" },
236         { .supply = "cmos_2v8" },
237 };
238 
239 static struct soc_camera_link iclink_ov2640 = {
240         .bus_id         = 0,
241         .board_info     = &mx31_3ds_i2c_camera,
242         .i2c_adapter_id = 0,
243         .power          = mx31_3ds_camera_power,
244         .regulators     = mx31_3ds_camera_regs,
245         .num_regulators = ARRAY_SIZE(mx31_3ds_camera_regs),
246 };
247 
248 static struct platform_device mx31_3ds_ov2640 = {
249         .name   = "soc-camera-pdrv",
250         .id     = 0,
251         .dev    = {
252                 .platform_data = &iclink_ov2640,
253         },
254 };
255 
256 /*
257  * FB support
258  */
259 static const struct fb_videomode fb_modedb[] = {
260         {       /* 480x640 @ 60 Hz */
261                 .name           = "Epson-VGA",
262                 .refresh        = 60,
263                 .xres           = 480,
264                 .yres           = 640,
265                 .pixclock       = 41701,
266                 .left_margin    = 20,
267                 .right_margin   = 41,
268                 .upper_margin   = 10,
269                 .lower_margin   = 5,
270                 .hsync_len      = 20,
271                 .vsync_len      = 10,
272                 .sync           = FB_SYNC_OE_ACT_HIGH | FB_SYNC_CLK_INVERT,
273                 .vmode          = FB_VMODE_NONINTERLACED,
274                 .flag           = 0,
275         },
276 };
277 
278 static struct mx3fb_platform_data mx3fb_pdata __initdata = {
279         .name           = "Epson-VGA",
280         .mode           = fb_modedb,
281         .num_modes      = ARRAY_SIZE(fb_modedb),
282 };
283 
284 /* LCD */
285 static struct l4f00242t03_pdata mx31_3ds_l4f00242t03_pdata = {
286         .reset_gpio             = IOMUX_TO_GPIO(MX31_PIN_LCS1),
287         .data_enable_gpio       = IOMUX_TO_GPIO(MX31_PIN_SER_RS),
288 };
289 
290 /*
291  * Support for SD card slot in personality board
292  */
293 #define MX31_3DS_GPIO_SDHC1_CD IOMUX_TO_GPIO(MX31_PIN_GPIO3_1)
294 #define MX31_3DS_GPIO_SDHC1_BE IOMUX_TO_GPIO(MX31_PIN_GPIO3_0)
295 
296 static struct gpio mx31_3ds_sdhc1_gpios[] = {
297         { MX31_3DS_GPIO_SDHC1_CD, GPIOF_IN, "sdhc1-card-detect" },
298         { MX31_3DS_GPIO_SDHC1_BE, GPIOF_OUT_INIT_LOW, "sdhc1-bus-en" },
299 };
300 
301 static int mx31_3ds_sdhc1_init(struct device *dev,
302                                irq_handler_t detect_irq,
303                                void *data)
304 {
305         int ret;
306 
307         ret = gpio_request_array(mx31_3ds_sdhc1_gpios,
308                                  ARRAY_SIZE(mx31_3ds_sdhc1_gpios));
309         if (ret) {
310                 pr_warn("Unable to request the SD/MMC GPIOs.\n");
311                 return ret;
312         }
313 
314         ret = request_irq(gpio_to_irq(IOMUX_TO_GPIO(MX31_PIN_GPIO3_1)),
315                           detect_irq,
316                           IRQF_TRIGGER_FALLING | IRQF_TRIGGER_RISING,
317                           "sdhc1-detect", data);
318         if (ret) {
319                 pr_warn("Unable to request the SD/MMC card-detect IRQ.\n");
320                 goto gpio_free;
321         }
322 
323         return 0;
324 
325 gpio_free:
326         gpio_free_array(mx31_3ds_sdhc1_gpios,
327                         ARRAY_SIZE(mx31_3ds_sdhc1_gpios));
328         return ret;
329 }
330 
331 static void mx31_3ds_sdhc1_exit(struct device *dev, void *data)
332 {
333         free_irq(gpio_to_irq(IOMUX_TO_GPIO(MX31_PIN_GPIO3_1)), data);
334         gpio_free_array(mx31_3ds_sdhc1_gpios,
335                          ARRAY_SIZE(mx31_3ds_sdhc1_gpios));
336 }
337 
338 static void mx31_3ds_sdhc1_setpower(struct device *dev, unsigned int vdd)
339 {
340         /*
341          * While the voltage stuff is done by the driver, activate the
342          * Buffer Enable Pin only if there is a card in slot to fix the card
343          * voltage issue caused by bi-directional chip TXB0108 on 3Stack.
344          * Done here because at this stage we have for sure a debounced value
345          * of the presence of the card, showed by the value of vdd.
346          * 7 == ilog2(MMC_VDD_165_195)
347          */
348         if (vdd > 7)
349                 gpio_set_value(MX31_3DS_GPIO_SDHC1_BE, 1);
350         else
351                 gpio_set_value(MX31_3DS_GPIO_SDHC1_BE, 0);
352 }
353 
354 static struct imxmmc_platform_data sdhc1_pdata = {
355         .init           = mx31_3ds_sdhc1_init,
356         .exit           = mx31_3ds_sdhc1_exit,
357         .setpower       = mx31_3ds_sdhc1_setpower,
358 };
359 
360 /*
361  * Matrix keyboard
362  */
363 
364 static const uint32_t mx31_3ds_keymap[] = {
365         KEY(0, 0, KEY_UP),
366         KEY(0, 1, KEY_DOWN),
367         KEY(1, 0, KEY_RIGHT),
368         KEY(1, 1, KEY_LEFT),
369         KEY(1, 2, KEY_ENTER),
370         KEY(2, 0, KEY_F6),
371         KEY(2, 1, KEY_F8),
372         KEY(2, 2, KEY_F9),
373         KEY(2, 3, KEY_F10),
374 };
375 
376 static const struct matrix_keymap_data mx31_3ds_keymap_data __initconst = {
377         .keymap         = mx31_3ds_keymap,
378         .keymap_size    = ARRAY_SIZE(mx31_3ds_keymap),
379 };
380 
381 /* Regulators */
382 static struct regulator_init_data pwgtx_init = {
383         .constraints = {
384                 .boot_on        = 1,
385                 .always_on      = 1,
386         },
387 };
388 
389 static struct regulator_init_data gpo_init = {
390         .constraints = {
391                 .boot_on = 1,
392                 .always_on = 1,
393         }
394 };
395 
396 static struct regulator_consumer_supply vmmc2_consumers[] = {
397         REGULATOR_SUPPLY("vmmc", "imx31-mmc.0"),
398 };
399 
400 static struct regulator_init_data vmmc2_init = {
401         .constraints = {
402                 .min_uV = 3000000,
403                 .max_uV = 3000000,
404                 .valid_ops_mask = REGULATOR_CHANGE_VOLTAGE |
405                                   REGULATOR_CHANGE_STATUS,
406         },
407         .num_consumer_supplies = ARRAY_SIZE(vmmc2_consumers),
408         .consumer_supplies = vmmc2_consumers,
409 };
410 
411 static struct regulator_consumer_supply vmmc1_consumers[] = {
412         REGULATOR_SUPPLY("vcore", "spi0.0"),
413         REGULATOR_SUPPLY("cmos_2v8", "soc-camera-pdrv.0"),
414 };
415 
416 static struct regulator_init_data vmmc1_init = {
417         .constraints = {
418                 .min_uV = 2800000,
419                 .max_uV = 2800000,
420                 .apply_uV = 1,
421                 .valid_ops_mask = REGULATOR_CHANGE_VOLTAGE |
422                                   REGULATOR_CHANGE_STATUS,
423         },
424         .num_consumer_supplies = ARRAY_SIZE(vmmc1_consumers),
425         .consumer_supplies = vmmc1_consumers,
426 };
427 
428 static struct regulator_consumer_supply vgen_consumers[] = {
429         REGULATOR_SUPPLY("vdd", "spi0.0"),
430 };
431 
432 static struct regulator_init_data vgen_init = {
433         .constraints = {
434                 .min_uV = 1800000,
435                 .max_uV = 1800000,
436                 .apply_uV = 1,
437                 .valid_ops_mask = REGULATOR_CHANGE_VOLTAGE |
438                                   REGULATOR_CHANGE_STATUS,
439         },
440         .num_consumer_supplies = ARRAY_SIZE(vgen_consumers),
441         .consumer_supplies = vgen_consumers,
442 };
443 
444 static struct regulator_consumer_supply vvib_consumers[] = {
445         REGULATOR_SUPPLY("cmos_vcore", "soc-camera-pdrv.0"),
446 };
447 
448 static struct regulator_init_data vvib_init = {
449         .constraints = {
450                 .min_uV = 1300000,
451                 .max_uV = 1300000,
452                 .apply_uV = 1,
453                 .valid_ops_mask = REGULATOR_CHANGE_VOLTAGE |
454                                   REGULATOR_CHANGE_STATUS,
455         },
456         .num_consumer_supplies = ARRAY_SIZE(vvib_consumers),
457         .consumer_supplies = vvib_consumers,
458 };
459 
460 static struct mc13xxx_regulator_init_data mx31_3ds_regulators[] = {
461         {
462                 .id = MC13783_REG_PWGT1SPI, /* Power Gate for ARM core. */
463                 .init_data = &pwgtx_init,
464         }, {
465                 .id = MC13783_REG_PWGT2SPI, /* Power Gate for L2 Cache. */
466                 .init_data = &pwgtx_init,
467         }, {
468 
469                 .id = MC13783_REG_GPO1, /* Turn on 1.8V */
470                 .init_data = &gpo_init,
471         }, {
472                 .id = MC13783_REG_GPO3, /* Turn on 3.3V */
473                 .init_data = &gpo_init,
474         }, {
475                 .id = MC13783_REG_VMMC2, /* Power MMC/SD, WiFi/Bluetooth. */
476                 .init_data = &vmmc2_init,
477         }, {
478                 .id = MC13783_REG_VMMC1, /* Power LCD, CMOS, FM, GPS, Accel. */
479                 .init_data = &vmmc1_init,
480         }, {
481                 .id = MC13783_REG_VGEN,  /* Power LCD */
482                 .init_data = &vgen_init,
483         }, {
484                 .id = MC13783_REG_VVIB,  /* Power CMOS */
485                 .init_data = &vvib_init,
486         },
487 };
488 
489 /* MC13783 */
490 static struct mc13xxx_codec_platform_data mx31_3ds_codec = {
491         .dac_ssi_port = MC13783_SSI1_PORT,
492         .adc_ssi_port = MC13783_SSI1_PORT,
493 };
494 
495 static struct mc13xxx_platform_data mc13783_pdata = {
496         .regulators = {
497                 .regulators = mx31_3ds_regulators,
498                 .num_regulators = ARRAY_SIZE(mx31_3ds_regulators),
499         },
500         .codec = &mx31_3ds_codec,
501         .flags  = MC13XXX_USE_TOUCHSCREEN | MC13XXX_USE_RTC | MC13XXX_USE_CODEC,
502 
503 };
504 
505 static struct imx_ssi_platform_data mx31_3ds_ssi_pdata = {
506         .flags = IMX_SSI_DMA | IMX_SSI_NET,
507 };
508 
509 /* SPI */
510 static int spi0_internal_chipselect[] = {
511         MXC_SPI_CS(2),
512 };
513 
514 static const struct spi_imx_master spi0_pdata __initconst = {
515         .chipselect     = spi0_internal_chipselect,
516         .num_chipselect = ARRAY_SIZE(spi0_internal_chipselect),
517 };
518 
519 static int spi1_internal_chipselect[] = {
520         MXC_SPI_CS(0),
521         MXC_SPI_CS(2),
522 };
523 
524 static const struct spi_imx_master spi1_pdata __initconst = {
525         .chipselect     = spi1_internal_chipselect,
526         .num_chipselect = ARRAY_SIZE(spi1_internal_chipselect),
527 };
528 
529 static struct spi_board_info mx31_3ds_spi_devs[] __initdata = {
530         {
531                 .modalias       = "mc13783",
532                 .max_speed_hz   = 1000000,
533                 .bus_num        = 1,
534                 .chip_select    = 1, /* SS2 */
535                 .platform_data  = &mc13783_pdata,
536                 /* irq number is run-time assigned */
537                 .mode = SPI_CS_HIGH,
538         }, {
539                 .modalias       = "l4f00242t03",
540                 .max_speed_hz   = 5000000,
541                 .bus_num        = 0,
542                 .chip_select    = 0, /* SS2 */
543                 .platform_data  = &mx31_3ds_l4f00242t03_pdata,
544         },
545 };
546 
547 /*
548  * NAND Flash
549  */
550 static const struct mxc_nand_platform_data
551 mx31_3ds_nand_board_info __initconst = {
552         .width          = 1,
553         .hw_ecc         = 1,
554 #ifdef CONFIG_MACH_MX31_3DS_MXC_NAND_USE_BBT
555         .flash_bbt      = 1,
556 #endif
557 };
558 
559 /*
560  * USB OTG
561  */
562 
563 #define USB_PAD_CFG (PAD_CTL_DRV_MAX | PAD_CTL_SRE_FAST | PAD_CTL_HYS_CMOS | \
564                      PAD_CTL_ODE_CMOS | PAD_CTL_100K_PU)
565 
566 #define USBOTG_RST_B IOMUX_TO_GPIO(MX31_PIN_USB_PWR)
567 #define USBH2_RST_B IOMUX_TO_GPIO(MX31_PIN_USB_BYP)
568 
569 static int mx31_3ds_usbotg_init(void)
570 {
571         int err;
572 
573         mxc_iomux_set_pad(MX31_PIN_USBOTG_DATA0, USB_PAD_CFG);
574         mxc_iomux_set_pad(MX31_PIN_USBOTG_DATA1, USB_PAD_CFG);
575         mxc_iomux_set_pad(MX31_PIN_USBOTG_DATA2, USB_PAD_CFG);
576         mxc_iomux_set_pad(MX31_PIN_USBOTG_DATA3, USB_PAD_CFG);
577         mxc_iomux_set_pad(MX31_PIN_USBOTG_DATA4, USB_PAD_CFG);
578         mxc_iomux_set_pad(MX31_PIN_USBOTG_DATA5, USB_PAD_CFG);
579         mxc_iomux_set_pad(MX31_PIN_USBOTG_DATA6, USB_PAD_CFG);
580         mxc_iomux_set_pad(MX31_PIN_USBOTG_DATA7, USB_PAD_CFG);
581         mxc_iomux_set_pad(MX31_PIN_USBOTG_CLK, USB_PAD_CFG);
582         mxc_iomux_set_pad(MX31_PIN_USBOTG_DIR, USB_PAD_CFG);
583         mxc_iomux_set_pad(MX31_PIN_USBOTG_NXT, USB_PAD_CFG);
584         mxc_iomux_set_pad(MX31_PIN_USBOTG_STP, USB_PAD_CFG);
585 
586         err = gpio_request(USBOTG_RST_B, "otgusb-reset");
587         if (err) {
588                 pr_err("Failed to request the USB OTG reset gpio\n");
589                 return err;
590         }
591 
592         err = gpio_direction_output(USBOTG_RST_B, 0);
593         if (err) {
594                 pr_err("Failed to drive the USB OTG reset gpio\n");
595                 goto usbotg_free_reset;
596         }
597 
598         mdelay(1);
599         gpio_set_value(USBOTG_RST_B, 1);
600         return 0;
601 
602 usbotg_free_reset:
603         gpio_free(USBOTG_RST_B);
604         return err;
605 }
606 
607 static int mx31_3ds_otg_init(struct platform_device *pdev)
608 {
609         return mx31_initialize_usb_hw(pdev->id, MXC_EHCI_POWER_PINS_ENABLED);
610 }
611 
612 static int mx31_3ds_host2_init(struct platform_device *pdev)
613 {
614         int err;
615 
616         mxc_iomux_set_pad(MX31_PIN_USBH2_CLK, USB_PAD_CFG);
617         mxc_iomux_set_pad(MX31_PIN_USBH2_DIR, USB_PAD_CFG);
618         mxc_iomux_set_pad(MX31_PIN_USBH2_NXT, USB_PAD_CFG);
619         mxc_iomux_set_pad(MX31_PIN_USBH2_STP, USB_PAD_CFG);
620         mxc_iomux_set_pad(MX31_PIN_USBH2_DATA0, USB_PAD_CFG);
621         mxc_iomux_set_pad(MX31_PIN_USBH2_DATA1, USB_PAD_CFG);
622         mxc_iomux_set_pad(MX31_PIN_PC_VS2, USB_PAD_CFG);
623         mxc_iomux_set_pad(MX31_PIN_PC_BVD1, USB_PAD_CFG);
624         mxc_iomux_set_pad(MX31_PIN_PC_BVD2, USB_PAD_CFG);
625         mxc_iomux_set_pad(MX31_PIN_PC_RST, USB_PAD_CFG);
626         mxc_iomux_set_pad(MX31_PIN_IOIS16, USB_PAD_CFG);
627         mxc_iomux_set_pad(MX31_PIN_PC_RW_B, USB_PAD_CFG);
628 
629         err = gpio_request(USBH2_RST_B, "usbh2-reset");
630         if (err) {
631                 pr_err("Failed to request the USB Host 2 reset gpio\n");
632                 return err;
633         }
634 
635         err = gpio_direction_output(USBH2_RST_B, 0);
636         if (err) {
637                 pr_err("Failed to drive the USB Host 2 reset gpio\n");
638                 goto usbotg_free_reset;
639         }
640 
641         mdelay(1);
642         gpio_set_value(USBH2_RST_B, 1);
643 
644         mdelay(10);
645 
646         return mx31_initialize_usb_hw(pdev->id, MXC_EHCI_POWER_PINS_ENABLED);
647 
648 usbotg_free_reset:
649         gpio_free(USBH2_RST_B);
650         return err;
651 }
652 
653 static struct mxc_usbh_platform_data otg_pdata __initdata = {
654         .init   = mx31_3ds_otg_init,
655         .portsc = MXC_EHCI_MODE_ULPI,
656 };
657 
658 static struct mxc_usbh_platform_data usbh2_pdata __initdata = {
659         .init = mx31_3ds_host2_init,
660         .portsc = MXC_EHCI_MODE_ULPI,
661 };
662 
663 static const struct fsl_usb2_platform_data usbotg_pdata __initconst = {
664         .operating_mode = FSL_USB2_DR_DEVICE,
665         .phy_mode       = FSL_USB2_PHY_ULPI,
666 };
667 
668 static bool otg_mode_host __initdata;
669 
670 static int __init mx31_3ds_otg_mode(char *options)
671 {
672         if (!strcmp(options, "host"))
673                 otg_mode_host = true;
674         else if (!strcmp(options, "device"))
675                 otg_mode_host = false;
676         else
677                 pr_info("otg_mode neither \"host\" nor \"device\". "
678                         "Defaulting to device\n");
679         return 1;
680 }
681 __setup("otg_mode=", mx31_3ds_otg_mode);
682 
683 static const struct imxuart_platform_data uart_pdata __initconst = {
684         .flags = IMXUART_HAVE_RTSCTS,
685 };
686 
687 static const struct imxi2c_platform_data mx31_3ds_i2c0_data __initconst = {
688         .bitrate = 100000,
689 };
690 
691 static struct platform_device *devices[] __initdata = {
692         &mx31_3ds_ov2640,
693 };
694 
695 static void __init mx31_3ds_init(void)
696 {
697         int ret;
698 
699         imx31_soc_init();
700 
701         /* Configure SPI1 IOMUX */
702         mxc_iomux_set_gpr(MUX_PGP_CSPI_BB, true);
703 
704         mxc_iomux_setup_multiple_pins(mx31_3ds_pins, ARRAY_SIZE(mx31_3ds_pins),
705                                       "mx31_3ds");
706 
707         imx31_add_imx_uart0(&uart_pdata);
708         imx31_add_mxc_nand(&mx31_3ds_nand_board_info);
709 
710         imx31_add_spi_imx1(&spi1_pdata);
711         mx31_3ds_spi_devs[0].irq = gpio_to_irq(IOMUX_TO_GPIO(MX31_PIN_GPIO1_3));
712         spi_register_board_info(mx31_3ds_spi_devs,
713                                                 ARRAY_SIZE(mx31_3ds_spi_devs));
714 
715         platform_add_devices(devices, ARRAY_SIZE(devices));
716 
717         imx31_add_imx_keypad(&mx31_3ds_keymap_data);
718 
719         mx31_3ds_usbotg_init();
720         if (otg_mode_host) {
721                 otg_pdata.otg = imx_otg_ulpi_create(ULPI_OTG_DRVVBUS |
722                                 ULPI_OTG_DRVVBUS_EXT);
723                 if (otg_pdata.otg)
724                         imx31_add_mxc_ehci_otg(&otg_pdata);
725         }
726         usbh2_pdata.otg = imx_otg_ulpi_create(ULPI_OTG_DRVVBUS |
727                         ULPI_OTG_DRVVBUS_EXT);
728         if (usbh2_pdata.otg)
729                 imx31_add_mxc_ehci_hs(2, &usbh2_pdata);
730 
731         if (!otg_mode_host)
732                 imx31_add_fsl_usb2_udc(&usbotg_pdata);
733 
734         if (mxc_expio_init(MX31_CS5_BASE_ADDR, IOMUX_TO_GPIO(MX31_PIN_GPIO1_1)))
735                 printk(KERN_WARNING "Init of the debug board failed, all "
736                                     "devices on the debug board are unusable.\n");
737         imx31_add_imx2_wdt();
738         imx31_add_imx_i2c0(&mx31_3ds_i2c0_data);
739         imx31_add_mxc_mmc(0, &sdhc1_pdata);
740 
741         imx31_add_spi_imx0(&spi0_pdata);
742         imx31_add_ipu_core();
743         imx31_add_mx3_sdc_fb(&mx3fb_pdata);
744 
745         /* CSI */
746         /* Camera power: default - off */
747         ret = gpio_request_array(mx31_3ds_camera_gpios,
748                                  ARRAY_SIZE(mx31_3ds_camera_gpios));
749         if (ret) {
750                 pr_err("Failed to request camera gpios");
751                 iclink_ov2640.power = NULL;
752         }
753 
754         mx31_3ds_init_camera();
755 
756         imx31_add_imx_ssi(0, &mx31_3ds_ssi_pdata);
757 
758         imx_add_platform_device("imx_mc13783", 0, NULL, 0, NULL, 0);
759 }
760 
761 static void __init mx31_3ds_timer_init(void)
762 {
763         mx31_clocks_init(26000000);
764 }
765 
766 static void __init mx31_3ds_reserve(void)
767 {
768         /* reserve MX31_3DS_CAMERA_BUF_SIZE bytes for mx3-camera */
769         mx3_camera_base = arm_memblock_steal(MX31_3DS_CAMERA_BUF_SIZE,
770                                          MX31_3DS_CAMERA_BUF_SIZE);
771 }
772 
773 MACHINE_START(MX31_3DS, "Freescale MX31PDK (3DS)")
774         /* Maintainer: Freescale Semiconductor, Inc. */
775         .atag_offset = 0x100,
776         .map_io = mx31_map_io,
777         .init_early = imx31_init_early,
778         .init_irq = mx31_init_irq,
779         .init_time      = mx31_3ds_timer_init,
780         .init_machine = mx31_3ds_init,
781         .reserve = mx31_3ds_reserve,
782         .restart        = mxc_restart,
783 MACHINE_END
784 

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