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>
35 #include <asm/mach-types.h>
36 #include <asm/mach/arch.h>
37 #include <asm/mach/time.h>
39 #include "3ds_debugboard.h"
41 #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)
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,
151 static const struct imxuart_platform_data uart_pdata __initconst = {
152 .flags = IMXUART_HAVE_RTSCTS,
159 static const uint32_t mx27_3ds_keymap[] = {
162 KEY(1, 0, KEY_RIGHT),
164 KEY(1, 2, KEY_ENTER),
171 static const struct matrix_keymap_data mx27_3ds_keymap_data __initconst = {
172 .keymap = mx27_3ds_keymap,
173 .keymap_size = ARRAY_SIZE(mx27_3ds_keymap),
176 static int mx27_3ds_sdhc1_init(struct device *dev, irq_handler_t detect_irq,
179 return request_irq(gpio_to_irq(SD1_CD), detect_irq,
180 IRQF_TRIGGER_FALLING | IRQF_TRIGGER_RISING, "sdhc1-card-detect", data);
183 static void mx27_3ds_sdhc1_exit(struct device *dev, void *data)
185 free_irq(gpio_to_irq(SD1_CD), data);
188 static const struct imxmmc_platform_data sdhc1_pdata __initconst = {
189 .init = mx27_3ds_sdhc1_init,
190 .exit = mx27_3ds_sdhc1_exit,
193 static void mx27_3ds_sdhc1_enable_level_translator(void)
195 /* Turn on TXB0108 OE pin */
196 gpio_request(SD1_EN_GPIO, "sd1_enable");
197 gpio_direction_output(SD1_EN_GPIO, 1);
201 static int otg_phy_init(void)
203 gpio_request(OTG_PHY_RESET_GPIO, "usb-otg-reset");
204 gpio_direction_output(OTG_PHY_RESET_GPIO, 0);
206 gpio_set_value(OTG_PHY_RESET_GPIO, 1);
210 static int mx27_3ds_otg_init(struct platform_device *pdev)
212 return mx27_initialize_usb_hw(pdev->id, MXC_EHCI_INTERFACE_DIFF_UNI);
215 static struct mxc_usbh_platform_data otg_pdata __initdata = {
216 .init = mx27_3ds_otg_init,
217 .portsc = MXC_EHCI_MODE_ULPI,
220 static const struct fsl_usb2_platform_data otg_device_pdata __initconst = {
221 .operating_mode = FSL_USB2_DR_DEVICE,
222 .phy_mode = FSL_USB2_PHY_ULPI,
225 static bool otg_mode_host __initdata;
227 static int __init mx27_3ds_otg_mode(char *options)
229 if (!strcmp(options, "host"))
230 otg_mode_host = true;
231 else if (!strcmp(options, "device"))
232 otg_mode_host = false;
234 pr_info("otg_mode neither \"host\" nor \"device\". "
235 "Defaulting to device\n");
238 __setup("otg_mode=", mx27_3ds_otg_mode);
241 static struct regulator_init_data gpo_init = {
248 static struct regulator_consumer_supply vmmc1_consumers[] = {
249 REGULATOR_SUPPLY("vcore", "spi0.0"),
252 static struct regulator_init_data vmmc1_init = {
257 .valid_ops_mask = REGULATOR_CHANGE_VOLTAGE |
258 REGULATOR_CHANGE_STATUS,
260 .num_consumer_supplies = ARRAY_SIZE(vmmc1_consumers),
261 .consumer_supplies = vmmc1_consumers,
264 static struct regulator_consumer_supply vgen_consumers[] = {
265 REGULATOR_SUPPLY("vdd", "spi0.0"),
268 static struct regulator_init_data vgen_init = {
272 .valid_ops_mask = REGULATOR_CHANGE_VOLTAGE,
274 .num_consumer_supplies = ARRAY_SIZE(vgen_consumers),
275 .consumer_supplies = vgen_consumers,
278 static struct mc13xxx_regulator_init_data mx27_3ds_regulators[] = {
280 .id = MC13783_REG_VMMC1,
281 .init_data = &vmmc1_init,
283 .id = MC13783_REG_VGEN,
284 .init_data = &vgen_init,
286 .id = MC13783_REG_GPO1, /* Turn on 1.8V */
287 .init_data = &gpo_init,
289 .id = MC13783_REG_GPO3, /* Turn on 3.3V */
290 .init_data = &gpo_init,
295 static struct mc13xxx_codec_platform_data mx27_3ds_codec = {
296 .dac_ssi_port = MC13783_SSI1_PORT,
297 .adc_ssi_port = MC13783_SSI1_PORT,
300 static struct mc13xxx_platform_data mc13783_pdata = {
302 .regulators = mx27_3ds_regulators,
303 .num_regulators = ARRAY_SIZE(mx27_3ds_regulators),
306 .flags = MC13XXX_USE_TOUCHSCREEN | MC13XXX_USE_RTC |
308 .codec = &mx27_3ds_codec,
311 static struct imx_ssi_platform_data mx27_3ds_ssi_pdata = {
312 .flags = IMX_SSI_DMA | IMX_SSI_NET,
316 static int spi1_chipselect[] = {SPI1_SS0};
318 static const struct spi_imx_master spi1_pdata __initconst = {
319 .chipselect = spi1_chipselect,
320 .num_chipselect = ARRAY_SIZE(spi1_chipselect),
323 static int spi2_chipselect[] = {SPI2_SS0};
325 static const struct spi_imx_master spi2_pdata __initconst = {
326 .chipselect = spi2_chipselect,
327 .num_chipselect = ARRAY_SIZE(spi2_chipselect),
330 static struct imx_fb_videomode mx27_3ds_modes[] = {
331 { /* 480x640 @ 60 Hz */
344 .sync = FB_SYNC_OE_ACT_HIGH |
346 .vmode = FB_VMODE_NONINTERLACED,
354 static const struct imx_fb_platform_data mx27_3ds_fb_data __initconst = {
355 .mode = mx27_3ds_modes,
356 .num_modes = ARRAY_SIZE(mx27_3ds_modes),
363 static struct l4f00242t03_pdata mx27_3ds_lcd_pdata = {
364 .reset_gpio = LCD_RESET,
365 .data_enable_gpio = LCD_ENABLE,
368 static struct spi_board_info mx27_3ds_spi_devs[] __initdata = {
370 .modalias = "mc13783",
371 .max_speed_hz = 1000000,
373 .chip_select = 0, /* SS0 */
374 .platform_data = &mc13783_pdata,
375 /* irq number is run-time assigned */
378 .modalias = "l4f00242t03",
379 .max_speed_hz = 5000000,
381 .chip_select = 0, /* SS0 */
382 .platform_data = &mx27_3ds_lcd_pdata,
386 static const struct imxi2c_platform_data mx27_3ds_i2c0_data __initconst = {
390 static void __init mx27pdk_init(void)
394 mxc_gpio_setup_multiple_pins(mx27pdk_pins, ARRAY_SIZE(mx27pdk_pins),
396 imx27_add_imx_uart0(&uart_pdata);
398 imx27_add_imx_keypad(&mx27_3ds_keymap_data);
399 imx27_add_imx2_wdt();
401 imx27_add_spi_imx1(&spi2_pdata);
402 imx27_add_spi_imx0(&spi1_pdata);
404 imx27_add_imx_i2c(0, &mx27_3ds_i2c0_data);
405 imx27_add_imx_fb(&mx27_3ds_fb_data);
407 imx27_add_imx_ssi(0, &mx27_3ds_ssi_pdata);
410 static void __init mx27pdk_late_init(void)
412 mx27_3ds_sdhc1_enable_level_translator();
413 imx27_add_mxc_mmc(0, &sdhc1_pdata);
418 otg_pdata.otg = imx_otg_ulpi_create(ULPI_OTG_DRVVBUS |
419 ULPI_OTG_DRVVBUS_EXT);
422 imx27_add_mxc_ehci_otg(&otg_pdata);
426 imx27_add_fsl_usb2_udc(&otg_device_pdata);
428 mx27_3ds_spi_devs[0].irq = gpio_to_irq(PMIC_INT);
429 spi_register_board_info(mx27_3ds_spi_devs,
430 ARRAY_SIZE(mx27_3ds_spi_devs));
432 if (mxc_expio_init(MX27_CS5_BASE_ADDR, IMX_GPIO_NR(3, 28)))
433 pr_warn("Init of the debugboard failed, all devices on the debugboard are unusable.\n");
436 imx_add_platform_device("imx_mc13783", 0, NULL, 0, NULL, 0);
439 static void __init mx27pdk_timer_init(void)
441 mx27_clocks_init(26000000);
444 MACHINE_START(MX27_3DS, "Freescale MX27PDK")
445 /* maintainer: Freescale Semiconductor, Inc. */
446 .atag_offset = 0x100,
447 .map_io = mx27_map_io,
448 .init_early = imx27_init_early,
449 .init_irq = mx27_init_irq,
450 .init_time = mx27pdk_timer_init,
451 .init_machine = mx27pdk_init,
452 .init_late = mx27pdk_late_init,
453 .restart = mxc_restart,