2 * Copyright 2009 Freescale Semiconductor, Inc. All Rights Reserved.
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 <asm/mach-types.h>
35 #include <asm/mach/arch.h>
36 #include <asm/mach/time.h>
37 #include <mach/hardware.h>
38 #include <mach/common.h>
39 #include <mach/iomux-mx27.h>
40 #include <mach/ulpi.h>
41 #include <mach/irqs.h>
42 #include <mach/3ds_debugboard.h>
44 #include "devices-imx27.h"
46 #define SD1_EN_GPIO IMX_GPIO_NR(2, 25)
47 #define OTG_PHY_RESET_GPIO IMX_GPIO_NR(2, 23)
48 #define SPI2_SS0 IMX_GPIO_NR(4, 21)
49 #define EXPIO_PARENT_INT gpio_to_irq(IMX_GPIO_NR(3, 28))
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)
56 static const int mx27pdk_pins[] __initconst = {
88 SD1_EN_GPIO | GPIO_GPIO | GPIO_OUT,
90 OTG_PHY_RESET_GPIO | GPIO_GPIO | GPIO_OUT,
102 PE25_PF_USBOTG_DATA7,
108 SPI1_SS0 | GPIO_GPIO | GPIO_OUT,
113 SPI2_SS0 | GPIO_GPIO | GPIO_OUT,
118 PMIC_INT | GPIO_GPIO | GPIO_IN,
142 LCD_ENABLE | GPIO_GPIO | GPIO_OUT,
143 LCD_RESET | GPIO_GPIO | GPIO_OUT,
146 static const struct imxuart_platform_data uart_pdata __initconst = {
147 .flags = IMXUART_HAVE_RTSCTS,
154 static const uint32_t mx27_3ds_keymap[] = {
157 KEY(1, 0, KEY_RIGHT),
159 KEY(1, 2, KEY_ENTER),
166 static const struct matrix_keymap_data mx27_3ds_keymap_data __initconst = {
167 .keymap = mx27_3ds_keymap,
168 .keymap_size = ARRAY_SIZE(mx27_3ds_keymap),
171 static int mx27_3ds_sdhc1_init(struct device *dev, irq_handler_t detect_irq,
174 return request_irq(gpio_to_irq(SD1_CD), detect_irq,
175 IRQF_TRIGGER_FALLING | IRQF_TRIGGER_RISING, "sdhc1-card-detect", data);
178 static void mx27_3ds_sdhc1_exit(struct device *dev, void *data)
180 free_irq(gpio_to_irq(SD1_CD), data);
183 static const struct imxmmc_platform_data sdhc1_pdata __initconst = {
184 .init = mx27_3ds_sdhc1_init,
185 .exit = mx27_3ds_sdhc1_exit,
188 static void mx27_3ds_sdhc1_enable_level_translator(void)
190 /* Turn on TXB0108 OE pin */
191 gpio_request(SD1_EN_GPIO, "sd1_enable");
192 gpio_direction_output(SD1_EN_GPIO, 1);
196 static int otg_phy_init(void)
198 gpio_request(OTG_PHY_RESET_GPIO, "usb-otg-reset");
199 gpio_direction_output(OTG_PHY_RESET_GPIO, 0);
201 gpio_set_value(OTG_PHY_RESET_GPIO, 1);
205 static int mx27_3ds_otg_init(struct platform_device *pdev)
207 return mx27_initialize_usb_hw(pdev->id, MXC_EHCI_INTERFACE_DIFF_UNI);
210 static struct mxc_usbh_platform_data otg_pdata __initdata = {
211 .init = mx27_3ds_otg_init,
212 .portsc = MXC_EHCI_MODE_ULPI,
215 static const struct fsl_usb2_platform_data otg_device_pdata __initconst = {
216 .operating_mode = FSL_USB2_DR_DEVICE,
217 .phy_mode = FSL_USB2_PHY_ULPI,
220 static int otg_mode_host;
222 static int __init mx27_3ds_otg_mode(char *options)
224 if (!strcmp(options, "host"))
226 else if (!strcmp(options, "device"))
229 pr_info("otg_mode neither \"host\" nor \"device\". "
230 "Defaulting to device\n");
233 __setup("otg_mode=", mx27_3ds_otg_mode);
236 static struct regulator_init_data gpo_init = {
243 static struct regulator_consumer_supply vmmc1_consumers[] = {
244 REGULATOR_SUPPLY("lcd_2v8", NULL),
247 static struct regulator_init_data vmmc1_init = {
252 .valid_ops_mask = REGULATOR_CHANGE_VOLTAGE |
253 REGULATOR_CHANGE_STATUS,
255 .num_consumer_supplies = ARRAY_SIZE(vmmc1_consumers),
256 .consumer_supplies = vmmc1_consumers,
259 static struct regulator_consumer_supply vgen_consumers[] = {
260 REGULATOR_SUPPLY("vdd_lcdio", NULL),
263 static struct regulator_init_data vgen_init = {
267 .valid_ops_mask = REGULATOR_CHANGE_VOLTAGE,
269 .num_consumer_supplies = ARRAY_SIZE(vgen_consumers),
270 .consumer_supplies = vgen_consumers,
273 static struct mc13xxx_regulator_init_data mx27_3ds_regulators[] = {
275 .id = MC13783_REG_VMMC1,
276 .init_data = &vmmc1_init,
278 .id = MC13783_REG_VGEN,
279 .init_data = &vgen_init,
281 .id = MC13783_REG_GPO1, /* Turn on 1.8V */
282 .init_data = &gpo_init,
284 .id = MC13783_REG_GPO3, /* Turn on 3.3V */
285 .init_data = &gpo_init,
290 static struct mc13xxx_platform_data mc13783_pdata = {
292 .regulators = mx27_3ds_regulators,
293 .num_regulators = ARRAY_SIZE(mx27_3ds_regulators),
296 .flags = MC13783_USE_REGULATOR | MC13783_USE_TOUCHSCREEN |
301 static int spi1_chipselect[] = {SPI1_SS0};
303 static const struct spi_imx_master spi1_pdata __initconst = {
304 .chipselect = spi1_chipselect,
305 .num_chipselect = ARRAY_SIZE(spi1_chipselect),
308 static int spi2_chipselect[] = {SPI2_SS0};
310 static const struct spi_imx_master spi2_pdata __initconst = {
311 .chipselect = spi2_chipselect,
312 .num_chipselect = ARRAY_SIZE(spi2_chipselect),
315 static struct imx_fb_videomode mx27_3ds_modes[] = {
316 { /* 480x640 @ 60 Hz */
329 .sync = FB_SYNC_OE_ACT_HIGH |
331 .vmode = FB_VMODE_NONINTERLACED,
339 static const struct imx_fb_platform_data mx27_3ds_fb_data __initconst = {
340 .mode = mx27_3ds_modes,
341 .num_modes = ARRAY_SIZE(mx27_3ds_modes),
348 static struct l4f00242t03_pdata mx27_3ds_lcd_pdata = {
349 .reset_gpio = LCD_RESET,
350 .data_enable_gpio = LCD_ENABLE,
351 .core_supply = "lcd_2v8",
352 .io_supply = "vdd_lcdio",
355 static struct spi_board_info mx27_3ds_spi_devs[] __initdata = {
357 .modalias = "mc13783",
358 .max_speed_hz = 1000000,
360 .chip_select = 0, /* SS0 */
361 .platform_data = &mc13783_pdata,
362 .irq = gpio_to_irq(PMIC_INT),
365 .modalias = "l4f00242t03",
366 .max_speed_hz = 5000000,
368 .chip_select = 0, /* SS0 */
369 .platform_data = &mx27_3ds_lcd_pdata,
373 static const struct imxi2c_platform_data mx27_3ds_i2c0_data __initconst = {
377 static void __init mx27pdk_init(void)
381 mxc_gpio_setup_multiple_pins(mx27pdk_pins, ARRAY_SIZE(mx27pdk_pins),
383 mx27_3ds_sdhc1_enable_level_translator();
384 imx27_add_imx_uart0(&uart_pdata);
386 imx27_add_imx_keypad(&mx27_3ds_keymap_data);
387 imx27_add_mxc_mmc(0, &sdhc1_pdata);
388 imx27_add_imx2_wdt(NULL);
392 otg_pdata.otg = imx_otg_ulpi_create(ULPI_OTG_DRVVBUS |
393 ULPI_OTG_DRVVBUS_EXT);
396 imx27_add_mxc_ehci_otg(&otg_pdata);
400 imx27_add_fsl_usb2_udc(&otg_device_pdata);
402 imx27_add_spi_imx1(&spi2_pdata);
403 imx27_add_spi_imx0(&spi1_pdata);
404 spi_register_board_info(mx27_3ds_spi_devs,
405 ARRAY_SIZE(mx27_3ds_spi_devs));
407 if (mxc_expio_init(MX27_CS5_BASE_ADDR, EXPIO_PARENT_INT))
408 pr_warn("Init of the debugboard failed, all devices on the debugboard are unusable.\n");
409 imx27_add_imx_i2c(0, &mx27_3ds_i2c0_data);
410 imx27_add_imx_fb(&mx27_3ds_fb_data);
413 static void __init mx27pdk_timer_init(void)
415 mx27_clocks_init(26000000);
418 static struct sys_timer mx27pdk_timer = {
419 .init = mx27pdk_timer_init,
422 MACHINE_START(MX27_3DS, "Freescale MX27PDK")
423 /* maintainer: Freescale Semiconductor, Inc. */
424 .atag_offset = 0x100,
425 .map_io = mx27_map_io,
426 .init_early = imx27_init_early,
427 .init_irq = mx27_init_irq,
428 .timer = &mx27pdk_timer,
429 .init_machine = mx27pdk_init,