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>
33 #include <asm/mach-types.h>
34 #include <asm/mach/arch.h>
35 #include <asm/mach/time.h>
36 #include <mach/hardware.h>
37 #include <mach/common.h>
38 #include <mach/iomux-mx27.h>
39 #include <mach/ulpi.h>
40 #include <mach/irqs.h>
41 #include <mach/3ds_debugboard.h>
43 #include "devices-imx27.h"
45 #define SD1_EN_GPIO (GPIO_PORTB + 25)
46 #define OTG_PHY_RESET_GPIO (GPIO_PORTB + 23)
47 #define SPI2_SS0 (GPIO_PORTD + 21)
48 #define EXPIO_PARENT_INT (MXC_INTERNAL_IRQS + GPIO_PORTC + 28)
50 static const int mx27pdk_pins[] __initconst = {
82 SD1_EN_GPIO | GPIO_GPIO | GPIO_OUT,
84 OTG_PHY_RESET_GPIO | GPIO_GPIO | GPIO_OUT,
103 static const struct imxuart_platform_data uart_pdata __initconst = {
104 .flags = IMXUART_HAVE_RTSCTS,
111 static const uint32_t mx27_3ds_keymap[] = {
114 KEY(1, 0, KEY_RIGHT),
116 KEY(1, 2, KEY_ENTER),
123 static const struct matrix_keymap_data mx27_3ds_keymap_data __initconst = {
124 .keymap = mx27_3ds_keymap,
125 .keymap_size = ARRAY_SIZE(mx27_3ds_keymap),
128 static int mx27_3ds_sdhc1_init(struct device *dev, irq_handler_t detect_irq,
131 return request_irq(IRQ_GPIOB(26), detect_irq, IRQF_TRIGGER_FALLING |
132 IRQF_TRIGGER_RISING, "sdhc1-card-detect", data);
135 static void mx27_3ds_sdhc1_exit(struct device *dev, void *data)
137 free_irq(IRQ_GPIOB(26), data);
140 static const struct imxmmc_platform_data sdhc1_pdata __initconst = {
141 .init = mx27_3ds_sdhc1_init,
142 .exit = mx27_3ds_sdhc1_exit,
145 static void mx27_3ds_sdhc1_enable_level_translator(void)
147 /* Turn on TXB0108 OE pin */
148 gpio_request(SD1_EN_GPIO, "sd1_enable");
149 gpio_direction_output(SD1_EN_GPIO, 1);
153 static int otg_phy_init(void)
155 gpio_request(OTG_PHY_RESET_GPIO, "usb-otg-reset");
156 gpio_direction_output(OTG_PHY_RESET_GPIO, 0);
158 gpio_set_value(OTG_PHY_RESET_GPIO, 1);
162 #if defined(CONFIG_USB_ULPI)
164 static struct mxc_usbh_platform_data otg_pdata __initdata = {
165 .portsc = MXC_EHCI_MODE_ULPI,
166 .flags = MXC_EHCI_INTERFACE_DIFF_UNI,
170 static const struct fsl_usb2_platform_data otg_device_pdata __initconst = {
171 .operating_mode = FSL_USB2_DR_DEVICE,
172 .phy_mode = FSL_USB2_PHY_ULPI,
175 static int otg_mode_host;
177 static int __init mx27_3ds_otg_mode(char *options)
179 if (!strcmp(options, "host"))
181 else if (!strcmp(options, "device"))
184 pr_info("otg_mode neither \"host\" nor \"device\". "
185 "Defaulting to device\n");
188 __setup("otg_mode=", mx27_3ds_otg_mode);
191 static struct regulator_consumer_supply vmmc1_consumers[] = {
192 REGULATOR_SUPPLY("lcd_2v8", NULL),
195 static struct regulator_init_data vmmc1_init = {
199 .valid_ops_mask = REGULATOR_CHANGE_VOLTAGE,
201 .num_consumer_supplies = ARRAY_SIZE(vmmc1_consumers),
202 .consumer_supplies = vmmc1_consumers,
205 static struct regulator_consumer_supply vgen_consumers[] = {
206 REGULATOR_SUPPLY("vdd_lcdio", NULL),
209 static struct regulator_init_data vgen_init = {
213 .valid_ops_mask = REGULATOR_CHANGE_VOLTAGE,
215 .num_consumer_supplies = ARRAY_SIZE(vgen_consumers),
216 .consumer_supplies = vgen_consumers,
219 static struct mc13783_regulator_init_data mx27_3ds_regulators[] = {
221 .id = MC13783_REG_VMMC1,
222 .init_data = &vmmc1_init,
224 .id = MC13783_REG_VGEN,
225 .init_data = &vgen_init,
230 static struct mc13783_platform_data mc13783_pdata __initdata = {
231 .regulators = mx27_3ds_regulators,
232 .num_regulators = ARRAY_SIZE(mx27_3ds_regulators),
233 .flags = MC13783_USE_REGULATOR,
237 static int spi2_internal_chipselect[] = {SPI2_SS0};
239 static const struct spi_imx_master spi2_pdata __initconst = {
240 .chipselect = spi2_internal_chipselect,
241 .num_chipselect = ARRAY_SIZE(spi2_internal_chipselect),
244 static struct spi_board_info mx27_3ds_spi_devs[] __initdata = {
246 .modalias = "mc13783",
247 .max_speed_hz = 1000000,
249 .chip_select = 0, /* SS0 */
250 .platform_data = &mc13783_pdata,
251 .irq = IRQ_GPIOC(14),
257 static void __init mx27pdk_init(void)
259 mxc_gpio_setup_multiple_pins(mx27pdk_pins, ARRAY_SIZE(mx27pdk_pins),
261 mx27_3ds_sdhc1_enable_level_translator();
262 imx27_add_imx_uart0(&uart_pdata);
264 imx27_add_imx_keypad(&mx27_3ds_keymap_data);
265 imx27_add_mxc_mmc(0, &sdhc1_pdata);
266 imx27_add_imx2_wdt(NULL);
268 #if defined(CONFIG_USB_ULPI)
270 otg_pdata.otg = otg_ulpi_create(&mxc_ulpi_access_ops,
271 ULPI_OTG_DRVVBUS | ULPI_OTG_DRVVBUS_EXT);
273 imx27_add_mxc_ehci_otg(&otg_pdata);
277 imx27_add_fsl_usb2_udc(&otg_device_pdata);
279 imx27_add_spi_imx1(&spi2_pdata);
280 spi_register_board_info(mx27_3ds_spi_devs,
281 ARRAY_SIZE(mx27_3ds_spi_devs));
283 if (mxc_expio_init(MX27_CS5_BASE_ADDR, EXPIO_PARENT_INT))
284 pr_warn("Init of the debugboard failed, all devices on the debugboard are unusable.\n");
287 static void __init mx27pdk_timer_init(void)
289 mx27_clocks_init(26000000);
292 static struct sys_timer mx27pdk_timer = {
293 .init = mx27pdk_timer_init,
296 MACHINE_START(MX27_3DS, "Freescale MX27PDK")
297 /* maintainer: Freescale Semiconductor, Inc. */
298 .boot_params = MX27_PHYS_OFFSET + 0x100,
299 .map_io = mx27_map_io,
300 .init_irq = mx27_init_irq,
301 .init_machine = mx27pdk_init,
302 .timer = &mx27pdk_timer,