1 // SPDX-License-Identifier: GPL-2.0-or-later
3 * Copyright 2009 Freescale Semiconductor, Inc. All Rights Reserved.
5 * Author: Fabio Estevam <fabio.estevam@freescale.com>
9 * This machine is known as:
10 * - i.MX27 3-Stack Development System
11 * - i.MX27 Platform Development Kit (i.MX27 PDK)
14 #include <linux/platform_device.h>
15 #include <linux/gpio.h>
16 #include <linux/irq.h>
17 #include <linux/usb/otg.h>
18 #include <linux/usb/ulpi.h>
19 #include <linux/delay.h>
20 #include <linux/mfd/mc13783.h>
21 #include <linux/spi/spi.h>
22 #include <linux/regulator/machine.h>
23 #include <linux/spi/l4f00242t03.h>
26 #include <asm/mach-types.h>
27 #include <asm/mach/arch.h>
28 #include <asm/mach/time.h>
30 #include "3ds_debugboard.h"
32 #include "devices-imx27.h"
35 #include "iomux-mx27.h"
38 #define SD1_EN_GPIO IMX_GPIO_NR(2, 25)
39 #define OTG_PHY_RESET_GPIO IMX_GPIO_NR(2, 23)
40 #define SPI2_SS0 IMX_GPIO_NR(4, 21)
41 #define PMIC_INT IMX_GPIO_NR(3, 14)
42 #define SPI1_SS0 IMX_GPIO_NR(4, 28)
43 #define SD1_CD IMX_GPIO_NR(2, 26)
44 #define LCD_RESET IMX_GPIO_NR(1, 3)
45 #define LCD_ENABLE IMX_GPIO_NR(1, 31)
47 static const int mx27pdk_pins[] __initconst = {
79 SD1_EN_GPIO | GPIO_GPIO | GPIO_OUT,
81 OTG_PHY_RESET_GPIO | GPIO_GPIO | GPIO_OUT,
99 SPI1_SS0 | GPIO_GPIO | GPIO_OUT,
104 SPI2_SS0 | GPIO_GPIO | GPIO_OUT,
109 PMIC_INT | GPIO_GPIO | GPIO_IN,
133 LCD_ENABLE | GPIO_GPIO | GPIO_OUT,
134 LCD_RESET | GPIO_GPIO | GPIO_OUT,
142 static const struct imxuart_platform_data uart_pdata __initconst = {
143 .flags = IMXUART_HAVE_RTSCTS,
150 static const uint32_t mx27_3ds_keymap[] = {
153 KEY(1, 0, KEY_RIGHT),
155 KEY(1, 2, KEY_ENTER),
162 static const struct matrix_keymap_data mx27_3ds_keymap_data __initconst = {
163 .keymap = mx27_3ds_keymap,
164 .keymap_size = ARRAY_SIZE(mx27_3ds_keymap),
167 static int mx27_3ds_sdhc1_init(struct device *dev, irq_handler_t detect_irq,
170 return request_irq(gpio_to_irq(SD1_CD), detect_irq,
171 IRQF_TRIGGER_FALLING | IRQF_TRIGGER_RISING, "sdhc1-card-detect", data);
174 static void mx27_3ds_sdhc1_exit(struct device *dev, void *data)
176 free_irq(gpio_to_irq(SD1_CD), data);
179 static const struct imxmmc_platform_data sdhc1_pdata __initconst = {
180 .init = mx27_3ds_sdhc1_init,
181 .exit = mx27_3ds_sdhc1_exit,
184 static void mx27_3ds_sdhc1_enable_level_translator(void)
186 /* Turn on TXB0108 OE pin */
187 gpio_request(SD1_EN_GPIO, "sd1_enable");
188 gpio_direction_output(SD1_EN_GPIO, 1);
192 static int otg_phy_init(void)
194 gpio_request(OTG_PHY_RESET_GPIO, "usb-otg-reset");
195 gpio_direction_output(OTG_PHY_RESET_GPIO, 0);
197 gpio_set_value(OTG_PHY_RESET_GPIO, 1);
201 static int mx27_3ds_otg_init(struct platform_device *pdev)
203 return mx27_initialize_usb_hw(pdev->id, MXC_EHCI_INTERFACE_DIFF_UNI);
206 static struct mxc_usbh_platform_data otg_pdata __initdata = {
207 .init = mx27_3ds_otg_init,
208 .portsc = MXC_EHCI_MODE_ULPI,
211 static const struct fsl_usb2_platform_data otg_device_pdata __initconst = {
212 .operating_mode = FSL_USB2_DR_DEVICE,
213 .phy_mode = FSL_USB2_PHY_ULPI,
216 static bool otg_mode_host __initdata;
218 static int __init mx27_3ds_otg_mode(char *options)
220 if (!strcmp(options, "host"))
221 otg_mode_host = true;
222 else if (!strcmp(options, "device"))
223 otg_mode_host = false;
225 pr_info("otg_mode neither \"host\" nor \"device\". "
226 "Defaulting to device\n");
229 __setup("otg_mode=", mx27_3ds_otg_mode);
232 static struct regulator_init_data gpo_init = {
239 static struct regulator_consumer_supply vmmc1_consumers[] = {
240 REGULATOR_SUPPLY("vcore", "spi0.0"),
243 static struct regulator_init_data vmmc1_init = {
248 .valid_ops_mask = REGULATOR_CHANGE_VOLTAGE |
249 REGULATOR_CHANGE_STATUS,
251 .num_consumer_supplies = ARRAY_SIZE(vmmc1_consumers),
252 .consumer_supplies = vmmc1_consumers,
255 static struct regulator_consumer_supply vgen_consumers[] = {
256 REGULATOR_SUPPLY("vdd", "spi0.0"),
259 static struct regulator_init_data vgen_init = {
263 .valid_ops_mask = REGULATOR_CHANGE_VOLTAGE,
265 .num_consumer_supplies = ARRAY_SIZE(vgen_consumers),
266 .consumer_supplies = vgen_consumers,
269 static struct mc13xxx_regulator_init_data mx27_3ds_regulators[] = {
271 .id = MC13783_REG_VMMC1,
272 .init_data = &vmmc1_init,
274 .id = MC13783_REG_VGEN,
275 .init_data = &vgen_init,
277 .id = MC13783_REG_GPO1, /* Turn on 1.8V */
278 .init_data = &gpo_init,
280 .id = MC13783_REG_GPO3, /* Turn on 3.3V */
281 .init_data = &gpo_init,
286 static struct mc13xxx_codec_platform_data mx27_3ds_codec = {
287 .dac_ssi_port = MC13783_SSI1_PORT,
288 .adc_ssi_port = MC13783_SSI1_PORT,
291 static struct mc13xxx_platform_data mc13783_pdata = {
293 .regulators = mx27_3ds_regulators,
294 .num_regulators = ARRAY_SIZE(mx27_3ds_regulators),
297 .flags = MC13XXX_USE_TOUCHSCREEN | MC13XXX_USE_RTC |
299 .codec = &mx27_3ds_codec,
302 static struct imx_ssi_platform_data mx27_3ds_ssi_pdata = {
303 .flags = IMX_SSI_DMA | IMX_SSI_NET,
307 static int spi1_chipselect[] = {SPI1_SS0};
309 static const struct spi_imx_master spi1_pdata __initconst = {
310 .chipselect = spi1_chipselect,
311 .num_chipselect = ARRAY_SIZE(spi1_chipselect),
314 static int spi2_chipselect[] = {SPI2_SS0};
316 static const struct spi_imx_master spi2_pdata __initconst = {
317 .chipselect = spi2_chipselect,
318 .num_chipselect = ARRAY_SIZE(spi2_chipselect),
321 static struct imx_fb_videomode mx27_3ds_modes[] = {
322 { /* 480x640 @ 60 Hz */
335 .sync = FB_SYNC_OE_ACT_HIGH |
337 .vmode = FB_VMODE_NONINTERLACED,
345 static const struct imx_fb_platform_data mx27_3ds_fb_data __initconst = {
346 .mode = mx27_3ds_modes,
347 .num_modes = ARRAY_SIZE(mx27_3ds_modes),
354 static struct l4f00242t03_pdata mx27_3ds_lcd_pdata = {
355 .reset_gpio = LCD_RESET,
356 .data_enable_gpio = LCD_ENABLE,
359 static struct spi_board_info mx27_3ds_spi_devs[] __initdata = {
361 .modalias = "mc13783",
362 .max_speed_hz = 1000000,
364 .chip_select = 0, /* SS0 */
365 .platform_data = &mc13783_pdata,
366 /* irq number is run-time assigned */
369 .modalias = "l4f00242t03",
370 .max_speed_hz = 5000000,
372 .chip_select = 0, /* SS0 */
373 .platform_data = &mx27_3ds_lcd_pdata,
377 static const struct imxi2c_platform_data mx27_3ds_i2c0_data __initconst = {
381 static void __init mx27pdk_init(void)
385 mxc_gpio_setup_multiple_pins(mx27pdk_pins, ARRAY_SIZE(mx27pdk_pins),
387 imx27_add_imx_uart0(&uart_pdata);
389 imx27_add_imx_keypad(&mx27_3ds_keymap_data);
390 imx27_add_imx2_wdt();
392 imx27_add_spi_imx1(&spi2_pdata);
393 imx27_add_spi_imx0(&spi1_pdata);
395 imx27_add_imx_i2c(0, &mx27_3ds_i2c0_data);
396 imx27_add_imx_fb(&mx27_3ds_fb_data);
398 imx27_add_imx_ssi(0, &mx27_3ds_ssi_pdata);
401 static void __init mx27pdk_late_init(void)
403 mx27_3ds_sdhc1_enable_level_translator();
404 imx27_add_mxc_mmc(0, &sdhc1_pdata);
409 otg_pdata.otg = imx_otg_ulpi_create(ULPI_OTG_DRVVBUS |
410 ULPI_OTG_DRVVBUS_EXT);
413 imx27_add_mxc_ehci_otg(&otg_pdata);
417 imx27_add_fsl_usb2_udc(&otg_device_pdata);
419 mx27_3ds_spi_devs[0].irq = gpio_to_irq(PMIC_INT);
420 spi_register_board_info(mx27_3ds_spi_devs,
421 ARRAY_SIZE(mx27_3ds_spi_devs));
423 if (mxc_expio_init(MX27_CS5_BASE_ADDR, IMX_GPIO_NR(3, 28)))
424 pr_warn("Init of the debugboard failed, all devices on the debugboard are unusable.\n");
427 imx_add_platform_device("imx_mc13783", 0, NULL, 0, NULL, 0);
430 static void __init mx27pdk_timer_init(void)
432 mx27_clocks_init(26000000);
435 MACHINE_START(MX27_3DS, "Freescale MX27PDK")
436 /* maintainer: Freescale Semiconductor, Inc. */
437 .atag_offset = 0x100,
438 .map_io = mx27_map_io,
439 .init_early = imx27_init_early,
440 .init_irq = mx27_init_irq,
441 .init_time = mx27pdk_timer_init,
442 .init_machine = mx27pdk_init,
443 .init_late = mx27pdk_late_init,
444 .restart = mxc_restart,