1 // SPDX-License-Identifier: GPL-2.0-or-later
3 * Copyright 2009 Freescale Semiconductor, Inc. All Rights Reserved.
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/gpio/machine.h>
17 #include <linux/irq.h>
18 #include <linux/usb/otg.h>
19 #include <linux/usb/ulpi.h>
20 #include <linux/delay.h>
21 #include <linux/mfd/mc13783.h>
22 #include <linux/spi/spi.h>
23 #include <linux/regulator/machine.h>
25 #include <asm/mach-types.h>
26 #include <asm/mach/arch.h>
27 #include <asm/mach/time.h>
29 #include "3ds_debugboard.h"
31 #include "devices-imx27.h"
34 #include "iomux-mx27.h"
37 #define SD1_EN_GPIO IMX_GPIO_NR(2, 25)
38 #define OTG_PHY_RESET_GPIO IMX_GPIO_NR(2, 23)
39 #define SPI2_SS0 IMX_GPIO_NR(4, 21)
40 #define PMIC_INT IMX_GPIO_NR(3, 14)
41 #define SPI1_SS0 IMX_GPIO_NR(4, 28)
42 #define SD1_CD IMX_GPIO_NR(2, 26)
43 #define LCD_RESET IMX_GPIO_NR(1, 3)
44 #define LCD_ENABLE IMX_GPIO_NR(1, 31)
46 static const int mx27pdk_pins[] __initconst = {
78 SD1_EN_GPIO | GPIO_GPIO | GPIO_OUT,
80 OTG_PHY_RESET_GPIO | GPIO_GPIO | GPIO_OUT,
98 SPI1_SS0 | GPIO_GPIO | GPIO_OUT,
103 SPI2_SS0 | GPIO_GPIO | GPIO_OUT,
108 PMIC_INT | GPIO_GPIO | GPIO_IN,
132 LCD_ENABLE | GPIO_GPIO | GPIO_OUT,
133 LCD_RESET | GPIO_GPIO | GPIO_OUT,
141 static const struct imxuart_platform_data uart_pdata __initconst = {
142 .flags = IMXUART_HAVE_RTSCTS,
149 static const uint32_t mx27_3ds_keymap[] = {
152 KEY(1, 0, KEY_RIGHT),
154 KEY(1, 2, KEY_ENTER),
161 static const struct matrix_keymap_data mx27_3ds_keymap_data __initconst = {
162 .keymap = mx27_3ds_keymap,
163 .keymap_size = ARRAY_SIZE(mx27_3ds_keymap),
166 static int mx27_3ds_sdhc1_init(struct device *dev, irq_handler_t detect_irq,
169 return request_irq(gpio_to_irq(SD1_CD), detect_irq,
170 IRQF_TRIGGER_FALLING | IRQF_TRIGGER_RISING, "sdhc1-card-detect", data);
173 static void mx27_3ds_sdhc1_exit(struct device *dev, void *data)
175 free_irq(gpio_to_irq(SD1_CD), data);
178 static const struct imxmmc_platform_data sdhc1_pdata __initconst = {
179 .init = mx27_3ds_sdhc1_init,
180 .exit = mx27_3ds_sdhc1_exit,
183 static void mx27_3ds_sdhc1_enable_level_translator(void)
185 /* Turn on TXB0108 OE pin */
186 gpio_request(SD1_EN_GPIO, "sd1_enable");
187 gpio_direction_output(SD1_EN_GPIO, 1);
191 static int otg_phy_init(void)
193 gpio_request(OTG_PHY_RESET_GPIO, "usb-otg-reset");
194 gpio_direction_output(OTG_PHY_RESET_GPIO, 0);
196 gpio_set_value(OTG_PHY_RESET_GPIO, 1);
200 static int mx27_3ds_otg_init(struct platform_device *pdev)
202 return mx27_initialize_usb_hw(pdev->id, MXC_EHCI_INTERFACE_DIFF_UNI);
205 static struct mxc_usbh_platform_data otg_pdata __initdata = {
206 .init = mx27_3ds_otg_init,
207 .portsc = MXC_EHCI_MODE_ULPI,
210 static const struct fsl_usb2_platform_data otg_device_pdata __initconst = {
211 .operating_mode = FSL_USB2_DR_DEVICE,
212 .phy_mode = FSL_USB2_PHY_ULPI,
215 static bool otg_mode_host __initdata;
217 static int __init mx27_3ds_otg_mode(char *options)
219 if (!strcmp(options, "host"))
220 otg_mode_host = true;
221 else if (!strcmp(options, "device"))
222 otg_mode_host = false;
224 pr_info("otg_mode neither \"host\" nor \"device\". "
225 "Defaulting to device\n");
228 __setup("otg_mode=", mx27_3ds_otg_mode);
231 static struct regulator_init_data gpo_init = {
238 static struct regulator_consumer_supply vmmc1_consumers[] = {
239 REGULATOR_SUPPLY("vcore", "spi0.0"),
242 static struct regulator_init_data vmmc1_init = {
247 .valid_ops_mask = REGULATOR_CHANGE_VOLTAGE |
248 REGULATOR_CHANGE_STATUS,
250 .num_consumer_supplies = ARRAY_SIZE(vmmc1_consumers),
251 .consumer_supplies = vmmc1_consumers,
254 static struct regulator_consumer_supply vgen_consumers[] = {
255 REGULATOR_SUPPLY("vdd", "spi0.0"),
258 static struct regulator_init_data vgen_init = {
262 .valid_ops_mask = REGULATOR_CHANGE_VOLTAGE,
264 .num_consumer_supplies = ARRAY_SIZE(vgen_consumers),
265 .consumer_supplies = vgen_consumers,
268 static struct mc13xxx_regulator_init_data mx27_3ds_regulators[] = {
270 .id = MC13783_REG_VMMC1,
271 .init_data = &vmmc1_init,
273 .id = MC13783_REG_VGEN,
274 .init_data = &vgen_init,
276 .id = MC13783_REG_GPO1, /* Turn on 1.8V */
277 .init_data = &gpo_init,
279 .id = MC13783_REG_GPO3, /* Turn on 3.3V */
280 .init_data = &gpo_init,
285 static struct mc13xxx_codec_platform_data mx27_3ds_codec = {
286 .dac_ssi_port = MC13783_SSI1_PORT,
287 .adc_ssi_port = MC13783_SSI1_PORT,
290 static struct mc13xxx_platform_data mc13783_pdata = {
292 .regulators = mx27_3ds_regulators,
293 .num_regulators = ARRAY_SIZE(mx27_3ds_regulators),
296 .flags = MC13XXX_USE_TOUCHSCREEN | MC13XXX_USE_RTC |
298 .codec = &mx27_3ds_codec,
301 static struct imx_ssi_platform_data mx27_3ds_ssi_pdata = {
302 .flags = IMX_SSI_DMA | IMX_SSI_NET,
306 static int spi1_chipselect[] = {SPI1_SS0};
308 static const struct spi_imx_master spi1_pdata __initconst = {
309 .chipselect = spi1_chipselect,
310 .num_chipselect = ARRAY_SIZE(spi1_chipselect),
313 static int spi2_chipselect[] = {SPI2_SS0};
315 static const struct spi_imx_master spi2_pdata __initconst = {
316 .chipselect = spi2_chipselect,
317 .num_chipselect = ARRAY_SIZE(spi2_chipselect),
320 static struct imx_fb_videomode mx27_3ds_modes[] = {
321 { /* 480x640 @ 60 Hz */
334 .sync = FB_SYNC_OE_ACT_HIGH |
336 .vmode = FB_VMODE_NONINTERLACED,
344 static const struct imx_fb_platform_data mx27_3ds_fb_data __initconst = {
345 .mode = mx27_3ds_modes,
346 .num_modes = ARRAY_SIZE(mx27_3ds_modes),
353 static struct gpiod_lookup_table mx27_3ds_lcd_gpiod_table = {
354 .dev_id = "spi0.0", /* Bus 0 chipselect 0 */
357 * The i.MX27 has the i.MX21 GPIO controller, the GPIOs
358 * numbered IMX_GPIO_NR(1, 3) and IMX_GPIO_NR(1, 31)
359 * are in "bank 1" which is subtracted by one in the macro
360 * so these are actually bank 0 on "imx21-gpio.0".
362 GPIO_LOOKUP("imx21-gpio.0", 3, "reset", GPIO_ACTIVE_HIGH),
363 GPIO_LOOKUP("imx21-gpio.0", 31, "enable", GPIO_ACTIVE_HIGH),
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 */
385 static const struct imxi2c_platform_data mx27_3ds_i2c0_data __initconst = {
389 static void __init mx27pdk_init(void)
393 mxc_gpio_setup_multiple_pins(mx27pdk_pins, ARRAY_SIZE(mx27pdk_pins),
395 imx27_add_imx_uart0(&uart_pdata);
397 imx27_add_imx_keypad(&mx27_3ds_keymap_data);
398 imx27_add_imx2_wdt();
400 imx27_add_spi_imx1(&spi2_pdata);
401 imx27_add_spi_imx0(&spi1_pdata);
403 imx27_add_imx_i2c(0, &mx27_3ds_i2c0_data);
404 imx27_add_imx_fb(&mx27_3ds_fb_data);
406 imx27_add_imx_ssi(0, &mx27_3ds_ssi_pdata);
409 static void __init mx27pdk_late_init(void)
411 mx27_3ds_sdhc1_enable_level_translator();
412 imx27_add_mxc_mmc(0, &sdhc1_pdata);
417 otg_pdata.otg = imx_otg_ulpi_create(ULPI_OTG_DRVVBUS |
418 ULPI_OTG_DRVVBUS_EXT);
421 imx27_add_mxc_ehci_otg(&otg_pdata);
425 imx27_add_fsl_usb2_udc(&otg_device_pdata);
427 gpiod_add_lookup_table(&mx27_3ds_lcd_gpiod_table);
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,