2 * Copyright 2008 Freescale Semiconductor, Inc. All Rights Reserved.
4 * This program is free software; you can redistribute it and/or modify
5 * it under the terms of the GNU General Public License as published by
6 * the Free Software Foundation; either version 2 of the License, or
7 * (at your option) any later version.
9 * This program is distributed in the hope that it will be useful,
10 * but WITHOUT ANY WARRANTY; without even the implied warranty of
11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12 * GNU General Public License for more details.
15 #include <linux/delay.h>
16 #include <linux/types.h>
17 #include <linux/init.h>
18 #include <linux/clk.h>
19 #include <linux/irq.h>
20 #include <linux/gpio.h>
21 #include <linux/platform_device.h>
22 #include <linux/mfd/mc13783.h>
23 #include <linux/spi/spi.h>
24 #include <linux/regulator/machine.h>
25 #include <linux/usb/otg.h>
26 #include <linux/usb/ulpi.h>
28 #include <mach/hardware.h>
29 #include <asm/mach-types.h>
30 #include <asm/mach/arch.h>
31 #include <asm/mach/time.h>
32 #include <asm/memory.h>
33 #include <asm/mach/map.h>
34 #include <mach/common.h>
35 #include <mach/iomux-mx3.h>
36 #include <mach/3ds_debugboard.h>
37 #include <mach/ulpi.h>
39 #include "devices-imx31.h"
42 /* CPLD IRQ line for external uart, external ethernet etc */
43 #define EXPIO_PARENT_INT IOMUX_TO_IRQ(MX31_PIN_GPIO1_1)
46 * This file contains the board-specific initialization routines.
49 static int mx31_3ds_pins[] = {
55 IOMUX_MODE(MX31_PIN_GPIO1_1, IOMUX_CONFIG_GPIO),
57 MX31_PIN_CSPI2_SCLK__SCLK,
58 MX31_PIN_CSPI2_MOSI__MOSI,
59 MX31_PIN_CSPI2_MISO__MISO,
60 MX31_PIN_CSPI2_SPI_RDY__SPI_RDY,
61 MX31_PIN_CSPI2_SS0__SS0,
62 MX31_PIN_CSPI2_SS2__SS2, /*CS for MC13783 */
64 IOMUX_MODE(MX31_PIN_GPIO1_3, IOMUX_CONFIG_GPIO),
66 IOMUX_MODE(MX31_PIN_USB_PWR, IOMUX_CONFIG_GPIO),
68 MX31_PIN_USBOTG_DATA0__USBOTG_DATA0,
69 MX31_PIN_USBOTG_DATA1__USBOTG_DATA1,
70 MX31_PIN_USBOTG_DATA2__USBOTG_DATA2,
71 MX31_PIN_USBOTG_DATA3__USBOTG_DATA3,
72 MX31_PIN_USBOTG_DATA4__USBOTG_DATA4,
73 MX31_PIN_USBOTG_DATA5__USBOTG_DATA5,
74 MX31_PIN_USBOTG_DATA6__USBOTG_DATA6,
75 MX31_PIN_USBOTG_DATA7__USBOTG_DATA7,
76 MX31_PIN_USBOTG_CLK__USBOTG_CLK,
77 MX31_PIN_USBOTG_DIR__USBOTG_DIR,
78 MX31_PIN_USBOTG_NXT__USBOTG_NXT,
79 MX31_PIN_USBOTG_STP__USBOTG_STP,
81 MX31_PIN_KEY_ROW0_KEY_ROW0,
82 MX31_PIN_KEY_ROW1_KEY_ROW1,
83 MX31_PIN_KEY_ROW2_KEY_ROW2,
84 MX31_PIN_KEY_COL0_KEY_COL0,
85 MX31_PIN_KEY_COL1_KEY_COL1,
86 MX31_PIN_KEY_COL2_KEY_COL2,
87 MX31_PIN_KEY_COL3_KEY_COL3,
89 IOMUX_MODE(MX31_PIN_USBH2_CLK, IOMUX_CONFIG_FUNC),
90 IOMUX_MODE(MX31_PIN_USBH2_DIR, IOMUX_CONFIG_FUNC),
91 IOMUX_MODE(MX31_PIN_USBH2_NXT, IOMUX_CONFIG_FUNC),
92 IOMUX_MODE(MX31_PIN_USBH2_STP, IOMUX_CONFIG_FUNC),
93 IOMUX_MODE(MX31_PIN_USBH2_DATA0, IOMUX_CONFIG_FUNC),
94 IOMUX_MODE(MX31_PIN_USBH2_DATA1, IOMUX_CONFIG_FUNC),
95 IOMUX_MODE(MX31_PIN_PC_VS2, IOMUX_CONFIG_ALT1),
96 IOMUX_MODE(MX31_PIN_PC_BVD1, IOMUX_CONFIG_ALT1),
97 IOMUX_MODE(MX31_PIN_PC_BVD2, IOMUX_CONFIG_ALT1),
98 IOMUX_MODE(MX31_PIN_PC_RST, IOMUX_CONFIG_ALT1),
99 IOMUX_MODE(MX31_PIN_IOIS16, IOMUX_CONFIG_ALT1),
100 IOMUX_MODE(MX31_PIN_PC_RW_B, IOMUX_CONFIG_ALT1),
101 /* USB Host2 reset */
102 IOMUX_MODE(MX31_PIN_USB_BYP, IOMUX_CONFIG_GPIO),
109 static const uint32_t mx31_3ds_keymap[] = {
112 KEY(1, 0, KEY_RIGHT),
114 KEY(1, 2, KEY_ENTER),
121 static const struct matrix_keymap_data mx31_3ds_keymap_data __initconst = {
122 .keymap = mx31_3ds_keymap,
123 .keymap_size = ARRAY_SIZE(mx31_3ds_keymap),
127 static struct regulator_init_data pwgtx_init = {
134 static struct regulator_init_data gpo_init = {
141 static struct mc13783_regulator_init_data mx31_3ds_regulators[] = {
143 .id = MC13783_REGU_PWGT1SPI, /* Power Gate for ARM core. */
144 .init_data = &pwgtx_init,
146 .id = MC13783_REGU_PWGT2SPI, /* Power Gate for L2 Cache. */
147 .init_data = &pwgtx_init,
150 .id = MC13783_REGU_GPO1, /* Turn on 1.8V */
151 .init_data = &gpo_init,
153 .id = MC13783_REGU_GPO3, /* Turn on 3.3V */
154 .init_data = &gpo_init,
159 static struct mc13783_platform_data mc13783_pdata __initdata = {
160 .regulators = mx31_3ds_regulators,
161 .num_regulators = ARRAY_SIZE(mx31_3ds_regulators),
162 .flags = MC13783_USE_REGULATOR | MC13783_USE_TOUCHSCREEN,
166 static int spi1_internal_chipselect[] = {
171 static const struct spi_imx_master spi1_pdata __initconst = {
172 .chipselect = spi1_internal_chipselect,
173 .num_chipselect = ARRAY_SIZE(spi1_internal_chipselect),
176 static struct spi_board_info mx31_3ds_spi_devs[] __initdata = {
178 .modalias = "mc13783",
179 .max_speed_hz = 1000000,
181 .chip_select = 1, /* SS2 */
182 .platform_data = &mc13783_pdata,
183 .irq = IOMUX_TO_IRQ(MX31_PIN_GPIO1_3),
191 static const struct mxc_nand_platform_data
192 mx31_3ds_nand_board_info __initconst = {
195 #ifdef MACH_MX31_3DS_MXC_NAND_USE_BBT
204 #define USB_PAD_CFG (PAD_CTL_DRV_MAX | PAD_CTL_SRE_FAST | PAD_CTL_HYS_CMOS | \
205 PAD_CTL_ODE_CMOS | PAD_CTL_100K_PU)
207 #define USBOTG_RST_B IOMUX_TO_GPIO(MX31_PIN_USB_PWR)
208 #define USBH2_RST_B IOMUX_TO_GPIO(MX31_PIN_USB_BYP)
210 static int mx31_3ds_usbotg_init(void)
214 mxc_iomux_set_pad(MX31_PIN_USBOTG_DATA0, USB_PAD_CFG);
215 mxc_iomux_set_pad(MX31_PIN_USBOTG_DATA1, USB_PAD_CFG);
216 mxc_iomux_set_pad(MX31_PIN_USBOTG_DATA2, USB_PAD_CFG);
217 mxc_iomux_set_pad(MX31_PIN_USBOTG_DATA3, USB_PAD_CFG);
218 mxc_iomux_set_pad(MX31_PIN_USBOTG_DATA4, USB_PAD_CFG);
219 mxc_iomux_set_pad(MX31_PIN_USBOTG_DATA5, USB_PAD_CFG);
220 mxc_iomux_set_pad(MX31_PIN_USBOTG_DATA6, USB_PAD_CFG);
221 mxc_iomux_set_pad(MX31_PIN_USBOTG_DATA7, USB_PAD_CFG);
222 mxc_iomux_set_pad(MX31_PIN_USBOTG_CLK, USB_PAD_CFG);
223 mxc_iomux_set_pad(MX31_PIN_USBOTG_DIR, USB_PAD_CFG);
224 mxc_iomux_set_pad(MX31_PIN_USBOTG_NXT, USB_PAD_CFG);
225 mxc_iomux_set_pad(MX31_PIN_USBOTG_STP, USB_PAD_CFG);
227 err = gpio_request(USBOTG_RST_B, "otgusb-reset");
229 pr_err("Failed to request the USB OTG reset gpio\n");
233 err = gpio_direction_output(USBOTG_RST_B, 0);
235 pr_err("Failed to drive the USB OTG reset gpio\n");
236 goto usbotg_free_reset;
240 gpio_set_value(USBOTG_RST_B, 1);
244 gpio_free(USBOTG_RST_B);
248 static int mx31_3ds_host2_init(struct platform_device *pdev)
252 mxc_iomux_set_pad(MX31_PIN_USBH2_CLK, USB_PAD_CFG);
253 mxc_iomux_set_pad(MX31_PIN_USBH2_DIR, USB_PAD_CFG);
254 mxc_iomux_set_pad(MX31_PIN_USBH2_NXT, USB_PAD_CFG);
255 mxc_iomux_set_pad(MX31_PIN_USBH2_STP, USB_PAD_CFG);
256 mxc_iomux_set_pad(MX31_PIN_USBH2_DATA0, USB_PAD_CFG);
257 mxc_iomux_set_pad(MX31_PIN_USBH2_DATA1, USB_PAD_CFG);
258 mxc_iomux_set_pad(MX31_PIN_PC_VS2, USB_PAD_CFG);
259 mxc_iomux_set_pad(MX31_PIN_PC_BVD1, USB_PAD_CFG);
260 mxc_iomux_set_pad(MX31_PIN_PC_BVD2, USB_PAD_CFG);
261 mxc_iomux_set_pad(MX31_PIN_PC_RST, USB_PAD_CFG);
262 mxc_iomux_set_pad(MX31_PIN_IOIS16, USB_PAD_CFG);
263 mxc_iomux_set_pad(MX31_PIN_PC_RW_B, USB_PAD_CFG);
265 err = gpio_request(USBH2_RST_B, "usbh2-reset");
267 pr_err("Failed to request the USB Host 2 reset gpio\n");
271 err = gpio_direction_output(USBH2_RST_B, 0);
273 pr_err("Failed to drive the USB Host 2 reset gpio\n");
274 goto usbotg_free_reset;
278 gpio_set_value(USBH2_RST_B, 1);
282 gpio_free(USBH2_RST_B);
286 #if defined(CONFIG_USB_ULPI)
287 static struct mxc_usbh_platform_data otg_pdata __initdata = {
288 .portsc = MXC_EHCI_MODE_ULPI,
289 .flags = MXC_EHCI_POWER_PINS_ENABLED,
292 static struct mxc_usbh_platform_data usbh2_pdata __initdata = {
293 .init = mx31_3ds_host2_init,
294 .portsc = MXC_EHCI_MODE_ULPI,
295 .flags = MXC_EHCI_POWER_PINS_ENABLED,
299 static const struct fsl_usb2_platform_data usbotg_pdata __initconst = {
300 .operating_mode = FSL_USB2_DR_DEVICE,
301 .phy_mode = FSL_USB2_PHY_ULPI,
304 static int otg_mode_host;
306 static int __init mx31_3ds_otg_mode(char *options)
308 if (!strcmp(options, "host"))
310 else if (!strcmp(options, "device"))
313 pr_info("otg_mode neither \"host\" nor \"device\". "
314 "Defaulting to device\n");
317 __setup("otg_mode=", mx31_3ds_otg_mode);
319 static const struct imxuart_platform_data uart_pdata __initconst = {
320 .flags = IMXUART_HAVE_RTSCTS,
324 * Set up static virtual mappings.
326 static void __init mx31_3ds_map_io(void)
332 * Board specific initialization.
334 static void __init mxc_board_init(void)
336 mxc_iomux_setup_multiple_pins(mx31_3ds_pins, ARRAY_SIZE(mx31_3ds_pins),
339 imx31_add_imx_uart0(&uart_pdata);
340 imx31_add_mxc_nand(&mx31_3ds_nand_board_info);
342 imx31_add_spi_imx1(&spi1_pdata);
343 spi_register_board_info(mx31_3ds_spi_devs,
344 ARRAY_SIZE(mx31_3ds_spi_devs));
346 imx31_add_imx_keypad(&mx31_3ds_keymap_data);
348 mx31_3ds_usbotg_init();
349 #if defined(CONFIG_USB_ULPI)
351 otg_pdata.otg = otg_ulpi_create(&mxc_ulpi_access_ops,
352 ULPI_OTG_DRVVBUS | ULPI_OTG_DRVVBUS_EXT);
354 imx31_add_mxc_ehci_otg(&otg_pdata);
356 usbh2_pdata.otg = otg_ulpi_create(&mxc_ulpi_access_ops,
357 ULPI_OTG_DRVVBUS | ULPI_OTG_DRVVBUS_EXT);
358 imx31_add_mxc_ehci_hs(2, &usbh2_pdata);
361 imx31_add_fsl_usb2_udc(&usbotg_pdata);
363 if (mxc_expio_init(MX31_CS5_BASE_ADDR, EXPIO_PARENT_INT))
364 printk(KERN_WARNING "Init of the debug board failed, all "
365 "devices on the debug board are unusable.\n");
366 imx31_add_imx2_wdt(NULL);
369 static void __init mx31_3ds_timer_init(void)
371 mx31_clocks_init(26000000);
374 static struct sys_timer mx31_3ds_timer = {
375 .init = mx31_3ds_timer_init,
379 * The following uses standard kernel macros defined in arch.h in order to
380 * initialize __mach_desc_MX31_3DS data structure.
382 MACHINE_START(MX31_3DS, "Freescale MX31PDK (3DS)")
383 /* Maintainer: Freescale Semiconductor, Inc. */
384 .boot_params = MX3x_PHYS_OFFSET + 0x100,
385 .map_io = mx31_3ds_map_io,
386 .init_irq = mx31_init_irq,
387 .init_machine = mxc_board_init,
388 .timer = &mx31_3ds_timer,