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 MACHINE_START(MX27_3DS, "Freescale MX27PDK")
542 /* maintainer: Freescale Semiconductor, Inc. */
543 .atag_offset = 0x100,
544 .map_io = mx27_map_io,
545 .init_early = imx27_init_early,
546 .init_irq = mx27_init_irq,
547 .handle_irq = imx27_handle_irq,
548 .init_time = mx27pdk_timer_init,
549 .init_machine = mx27pdk_init,
550 .restart = mxc_restart,