2 * Copyright 2009 Freescale Semiconductor, Inc. All Rights Reserved.
4 * Author: Fabio Estevam <fabio.estevam@freescale.com>
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.
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.
18 * This machine is known as:
19 * - i.MX27 3-Stack Development System
20 * - i.MX27 Platform Development Kit (i.MX27 PDK)
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>
31 #include <linux/regulator/machine.h>
32 #include <linux/spi/l4f00242t03.h>
34 #include <media/soc_camera.h>
36 #include <asm/mach-types.h>
37 #include <asm/mach/arch.h>
38 #include <asm/mach/time.h>
40 #include "3ds_debugboard.h"
42 #include "devices-imx27.h"
44 #include "iomux-mx27.h"
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)
58 static const int mx27pdk_pins
[] __initconst
= {
90 SD1_EN_GPIO
| GPIO_GPIO
| GPIO_OUT
,
92 OTG_PHY_RESET_GPIO
| GPIO_GPIO
| GPIO_OUT
,
104 PE25_PF_USBOTG_DATA7
,
110 SPI1_SS0
| GPIO_GPIO
| GPIO_OUT
,
115 SPI2_SS0
| GPIO_GPIO
| GPIO_OUT
,
120 PMIC_INT
| GPIO_GPIO
| GPIO_IN
,
144 LCD_ENABLE
| GPIO_GPIO
| GPIO_OUT
,
145 LCD_RESET
| GPIO_GPIO
| GPIO_OUT
,
159 CSI_PWRDWN
| GPIO_GPIO
| GPIO_OUT
,
160 CSI_RESET
| GPIO_GPIO
| GPIO_OUT
,
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" },
173 static const struct imxuart_platform_data uart_pdata __initconst
= {
174 .flags
= IMXUART_HAVE_RTSCTS
,
181 static const uint32_t mx27_3ds_keymap
[] = {
184 KEY(1, 0, KEY_RIGHT
),
186 KEY(1, 2, KEY_ENTER
),
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
),
198 static int mx27_3ds_sdhc1_init(struct device
*dev
, irq_handler_t detect_irq
,
201 return request_irq(gpio_to_irq(SD1_CD
), detect_irq
,
202 IRQF_TRIGGER_FALLING
| IRQF_TRIGGER_RISING
, "sdhc1-card-detect", data
);
205 static void mx27_3ds_sdhc1_exit(struct device
*dev
, void *data
)
207 free_irq(gpio_to_irq(SD1_CD
), data
);
210 static const struct imxmmc_platform_data sdhc1_pdata __initconst
= {
211 .init
= mx27_3ds_sdhc1_init
,
212 .exit
= mx27_3ds_sdhc1_exit
,
215 static void mx27_3ds_sdhc1_enable_level_translator(void)
217 /* Turn on TXB0108 OE pin */
218 gpio_request(SD1_EN_GPIO
, "sd1_enable");
219 gpio_direction_output(SD1_EN_GPIO
, 1);
223 static int otg_phy_init(void)
225 gpio_request(OTG_PHY_RESET_GPIO
, "usb-otg-reset");
226 gpio_direction_output(OTG_PHY_RESET_GPIO
, 0);
228 gpio_set_value(OTG_PHY_RESET_GPIO
, 1);
232 static int mx27_3ds_otg_init(struct platform_device
*pdev
)
234 return mx27_initialize_usb_hw(pdev
->id
, MXC_EHCI_INTERFACE_DIFF_UNI
);
237 static struct mxc_usbh_platform_data otg_pdata __initdata
= {
238 .init
= mx27_3ds_otg_init
,
239 .portsc
= MXC_EHCI_MODE_ULPI
,
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
,
247 static bool otg_mode_host __initdata
;
249 static int __init
mx27_3ds_otg_mode(char *options
)
251 if (!strcmp(options
, "host"))
252 otg_mode_host
= true;
253 else if (!strcmp(options
, "device"))
254 otg_mode_host
= false;
256 pr_info("otg_mode neither \"host\" nor \"device\". "
257 "Defaulting to device\n");
260 __setup("otg_mode=", mx27_3ds_otg_mode
);
263 static struct regulator_init_data gpo_init
= {
270 static struct regulator_consumer_supply vmmc1_consumers
[] = {
271 REGULATOR_SUPPLY("vcore", "spi0.0"),
272 REGULATOR_SUPPLY("cmos_2v8", "soc-camera-pdrv.0"),
275 static struct regulator_init_data vmmc1_init
= {
280 .valid_ops_mask
= REGULATOR_CHANGE_VOLTAGE
|
281 REGULATOR_CHANGE_STATUS
,
283 .num_consumer_supplies
= ARRAY_SIZE(vmmc1_consumers
),
284 .consumer_supplies
= vmmc1_consumers
,
287 static struct regulator_consumer_supply vgen_consumers
[] = {
288 REGULATOR_SUPPLY("vdd", "spi0.0"),
291 static struct regulator_init_data vgen_init
= {
295 .valid_ops_mask
= REGULATOR_CHANGE_VOLTAGE
,
297 .num_consumer_supplies
= ARRAY_SIZE(vgen_consumers
),
298 .consumer_supplies
= vgen_consumers
,
301 static struct regulator_consumer_supply vvib_consumers
[] = {
302 REGULATOR_SUPPLY("cmos_vcore", "soc-camera-pdrv.0"),
305 static struct regulator_init_data vvib_init
= {
310 .valid_ops_mask
= REGULATOR_CHANGE_VOLTAGE
|
311 REGULATOR_CHANGE_STATUS
,
313 .num_consumer_supplies
= ARRAY_SIZE(vvib_consumers
),
314 .consumer_supplies
= vvib_consumers
,
317 static struct mc13xxx_regulator_init_data mx27_3ds_regulators
[] = {
319 .id
= MC13783_REG_VMMC1
,
320 .init_data
= &vmmc1_init
,
322 .id
= MC13783_REG_VGEN
,
323 .init_data
= &vgen_init
,
325 .id
= MC13783_REG_GPO1
, /* Turn on 1.8V */
326 .init_data
= &gpo_init
,
328 .id
= MC13783_REG_GPO3
, /* Turn on 3.3V */
329 .init_data
= &gpo_init
,
331 .id
= MC13783_REG_VVIB
, /* Power OV2640 */
332 .init_data
= &vvib_init
,
337 static struct mc13xxx_codec_platform_data mx27_3ds_codec
= {
338 .dac_ssi_port
= MC13783_SSI1_PORT
,
339 .adc_ssi_port
= MC13783_SSI1_PORT
,
342 static struct mc13xxx_platform_data mc13783_pdata
= {
344 .regulators
= mx27_3ds_regulators
,
345 .num_regulators
= ARRAY_SIZE(mx27_3ds_regulators
),
348 .flags
= MC13XXX_USE_TOUCHSCREEN
| MC13XXX_USE_RTC
|
350 .codec
= &mx27_3ds_codec
,
353 static struct imx_ssi_platform_data mx27_3ds_ssi_pdata
= {
354 .flags
= IMX_SSI_DMA
| IMX_SSI_NET
,
358 static int spi1_chipselect
[] = {SPI1_SS0
};
360 static const struct spi_imx_master spi1_pdata __initconst
= {
361 .chipselect
= spi1_chipselect
,
362 .num_chipselect
= ARRAY_SIZE(spi1_chipselect
),
365 static int spi2_chipselect
[] = {SPI2_SS0
};
367 static const struct spi_imx_master spi2_pdata __initconst
= {
368 .chipselect
= spi2_chipselect
,
369 .num_chipselect
= ARRAY_SIZE(spi2_chipselect
),
372 static int mx27_3ds_camera_power(struct device
*dev
, int on
)
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);
381 /* If enabled, give a reset impulse */
382 gpio_set_value(CSI_RESET
, 0);
384 gpio_set_value(CSI_RESET
, 1);
391 static struct i2c_board_info mx27_3ds_i2c_camera
= {
392 I2C_BOARD_INFO("ov2640", 0x30),
395 static struct regulator_bulk_data mx27_3ds_camera_regs
[] = {
396 { .supply
= "cmos_vcore" },
397 { .supply
= "cmos_2v8" },
400 static struct soc_camera_link iclink_ov2640
= {
402 .board_info
= &mx27_3ds_i2c_camera
,
404 .power
= mx27_3ds_camera_power
,
405 .regulators
= mx27_3ds_camera_regs
,
406 .num_regulators
= ARRAY_SIZE(mx27_3ds_camera_regs
),
409 static struct platform_device mx27_3ds_ov2640
= {
410 .name
= "soc-camera-pdrv",
413 .platform_data
= &iclink_ov2640
,
417 static struct imx_fb_videomode mx27_3ds_modes
[] = {
418 { /* 480x640 @ 60 Hz */
431 .sync
= FB_SYNC_OE_ACT_HIGH
|
433 .vmode
= FB_VMODE_NONINTERLACED
,
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
),
450 static struct l4f00242t03_pdata mx27_3ds_lcd_pdata
= {
451 .reset_gpio
= LCD_RESET
,
452 .data_enable_gpio
= LCD_ENABLE
,
455 static struct spi_board_info mx27_3ds_spi_devs
[] __initdata
= {
457 .modalias
= "mc13783",
458 .max_speed_hz
= 1000000,
460 .chip_select
= 0, /* SS0 */
461 .platform_data
= &mc13783_pdata
,
462 /* irq number is run-time assigned */
465 .modalias
= "l4f00242t03",
466 .max_speed_hz
= 5000000,
468 .chip_select
= 0, /* SS0 */
469 .platform_data
= &mx27_3ds_lcd_pdata
,
473 static struct platform_device
*devices
[] __initdata
= {
477 static const struct mx2_camera_platform_data mx27_3ds_cam_pdata __initconst
= {
481 static const struct imxi2c_platform_data mx27_3ds_i2c0_data __initconst
= {
485 static void __init
mx27pdk_init(void)
490 mxc_gpio_setup_multiple_pins(mx27pdk_pins
, ARRAY_SIZE(mx27pdk_pins
),
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
);
497 imx27_add_imx2_wdt();
501 otg_pdata
.otg
= imx_otg_ulpi_create(ULPI_OTG_DRVVBUS
|
502 ULPI_OTG_DRVVBUS_EXT
);
505 imx27_add_mxc_ehci_otg(&otg_pdata
);
509 imx27_add_fsl_usb2_udc(&otg_device_pdata
);
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
));
517 if (mxc_expio_init(MX27_CS5_BASE_ADDR
, IMX_GPIO_NR(3, 28)))
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
);
523 ret
= gpio_request_array(mx27_3ds_camera_gpios
,
524 ARRAY_SIZE(mx27_3ds_camera_gpios
));
526 pr_err("Failed to request camera gpios");
527 iclink_ov2640
.power
= NULL
;
530 imx27_add_mx2_camera(&mx27_3ds_cam_pdata
);
531 imx27_add_imx_ssi(0, &mx27_3ds_ssi_pdata
);
533 imx_add_platform_device("imx_mc13783", 0, NULL
, 0, NULL
, 0);
536 static void __init
mx27pdk_timer_init(void)
538 mx27_clocks_init(26000000);
541 static struct sys_timer mx27pdk_timer
= {
542 .init
= mx27pdk_timer_init
,
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
,