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>
26 #include <mach/hardware.h>
27 #include <asm/mach-types.h>
28 #include <asm/mach/arch.h>
29 #include <asm/mach/time.h>
30 #include <asm/memory.h>
31 #include <asm/mach/map.h>
32 #include <mach/common.h>
33 #include <mach/iomux-mx3.h>
34 #include <mach/3ds_debugboard.h>
36 #include "devices-imx31.h"
39 /* CPLD IRQ line for external uart, external ethernet etc */
40 #define EXPIO_PARENT_INT IOMUX_TO_IRQ(MX31_PIN_GPIO1_1)
43 * This file contains the board-specific initialization routines.
46 static int mx31_3ds_pins
[] = {
52 IOMUX_MODE(MX31_PIN_GPIO1_1
, IOMUX_CONFIG_GPIO
),
54 MX31_PIN_CSPI2_SCLK__SCLK
,
55 MX31_PIN_CSPI2_MOSI__MOSI
,
56 MX31_PIN_CSPI2_MISO__MISO
,
57 MX31_PIN_CSPI2_SPI_RDY__SPI_RDY
,
58 MX31_PIN_CSPI2_SS0__SS0
,
59 MX31_PIN_CSPI2_SS2__SS2
, /*CS for MC13783 */
61 IOMUX_MODE(MX31_PIN_GPIO1_3
, IOMUX_CONFIG_GPIO
),
63 IOMUX_MODE(MX31_PIN_USB_PWR
, IOMUX_CONFIG_GPIO
),
65 MX31_PIN_USBOTG_DATA0__USBOTG_DATA0
,
66 MX31_PIN_USBOTG_DATA1__USBOTG_DATA1
,
67 MX31_PIN_USBOTG_DATA2__USBOTG_DATA2
,
68 MX31_PIN_USBOTG_DATA3__USBOTG_DATA3
,
69 MX31_PIN_USBOTG_DATA4__USBOTG_DATA4
,
70 MX31_PIN_USBOTG_DATA5__USBOTG_DATA5
,
71 MX31_PIN_USBOTG_DATA6__USBOTG_DATA6
,
72 MX31_PIN_USBOTG_DATA7__USBOTG_DATA7
,
73 MX31_PIN_USBOTG_CLK__USBOTG_CLK
,
74 MX31_PIN_USBOTG_DIR__USBOTG_DIR
,
75 MX31_PIN_USBOTG_NXT__USBOTG_NXT
,
76 MX31_PIN_USBOTG_STP__USBOTG_STP
,
78 MX31_PIN_KEY_ROW0_KEY_ROW0
,
79 MX31_PIN_KEY_ROW1_KEY_ROW1
,
80 MX31_PIN_KEY_ROW2_KEY_ROW2
,
81 MX31_PIN_KEY_COL0_KEY_COL0
,
82 MX31_PIN_KEY_COL1_KEY_COL1
,
83 MX31_PIN_KEY_COL2_KEY_COL2
,
84 MX31_PIN_KEY_COL3_KEY_COL3
,
91 static const uint32_t mx31_3ds_keymap
[] = {
103 static const struct matrix_keymap_data mx31_3ds_keymap_data __initconst
= {
104 .keymap
= mx31_3ds_keymap
,
105 .keymap_size
= ARRAY_SIZE(mx31_3ds_keymap
),
109 static struct regulator_init_data pwgtx_init
= {
116 static struct mc13783_regulator_init_data mx31_3ds_regulators
[] = {
118 .id
= MC13783_REGU_PWGT1SPI
, /* Power Gate for ARM core. */
119 .init_data
= &pwgtx_init
,
121 .id
= MC13783_REGU_PWGT2SPI
, /* Power Gate for L2 Cache. */
122 .init_data
= &pwgtx_init
,
127 static struct mc13783_platform_data mc13783_pdata __initdata
= {
128 .regulators
= mx31_3ds_regulators
,
129 .num_regulators
= ARRAY_SIZE(mx31_3ds_regulators
),
130 .flags
= MC13783_USE_REGULATOR
| MC13783_USE_TOUCHSCREEN
,
134 static int spi1_internal_chipselect
[] = {
139 static const struct spi_imx_master spi1_pdata __initconst
= {
140 .chipselect
= spi1_internal_chipselect
,
141 .num_chipselect
= ARRAY_SIZE(spi1_internal_chipselect
),
144 static struct spi_board_info mx31_3ds_spi_devs
[] __initdata
= {
146 .modalias
= "mc13783",
147 .max_speed_hz
= 1000000,
149 .chip_select
= 1, /* SS2 */
150 .platform_data
= &mc13783_pdata
,
151 .irq
= IOMUX_TO_IRQ(MX31_PIN_GPIO1_3
),
159 static const struct mxc_nand_platform_data
160 mx31_3ds_nand_board_info __initconst
= {
163 #ifdef MACH_MX31_3DS_MXC_NAND_USE_BBT
172 #define USB_PAD_CFG (PAD_CTL_DRV_MAX | PAD_CTL_SRE_FAST | PAD_CTL_HYS_CMOS | \
173 PAD_CTL_ODE_CMOS | PAD_CTL_100K_PU)
175 #define USBOTG_RST_B IOMUX_TO_GPIO(MX31_PIN_USB_PWR)
177 static int mx31_3ds_usbotg_init(void)
181 mxc_iomux_set_pad(MX31_PIN_USBOTG_DATA0
, USB_PAD_CFG
);
182 mxc_iomux_set_pad(MX31_PIN_USBOTG_DATA1
, USB_PAD_CFG
);
183 mxc_iomux_set_pad(MX31_PIN_USBOTG_DATA2
, USB_PAD_CFG
);
184 mxc_iomux_set_pad(MX31_PIN_USBOTG_DATA3
, USB_PAD_CFG
);
185 mxc_iomux_set_pad(MX31_PIN_USBOTG_DATA4
, USB_PAD_CFG
);
186 mxc_iomux_set_pad(MX31_PIN_USBOTG_DATA5
, USB_PAD_CFG
);
187 mxc_iomux_set_pad(MX31_PIN_USBOTG_DATA6
, USB_PAD_CFG
);
188 mxc_iomux_set_pad(MX31_PIN_USBOTG_DATA7
, USB_PAD_CFG
);
189 mxc_iomux_set_pad(MX31_PIN_USBOTG_CLK
, USB_PAD_CFG
);
190 mxc_iomux_set_pad(MX31_PIN_USBOTG_DIR
, USB_PAD_CFG
);
191 mxc_iomux_set_pad(MX31_PIN_USBOTG_NXT
, USB_PAD_CFG
);
192 mxc_iomux_set_pad(MX31_PIN_USBOTG_STP
, USB_PAD_CFG
);
194 err
= gpio_request(USBOTG_RST_B
, "otgusb-reset");
196 pr_err("Failed to request the USB OTG reset gpio\n");
200 err
= gpio_direction_output(USBOTG_RST_B
, 0);
202 pr_err("Failed to drive the USB OTG reset gpio\n");
203 goto usbotg_free_reset
;
207 gpio_set_value(USBOTG_RST_B
, 1);
211 gpio_free(USBOTG_RST_B
);
215 static const struct fsl_usb2_platform_data usbotg_pdata __initconst
= {
216 .operating_mode
= FSL_USB2_DR_DEVICE
,
217 .phy_mode
= FSL_USB2_PHY_ULPI
,
220 static const struct imxuart_platform_data uart_pdata __initconst
= {
221 .flags
= IMXUART_HAVE_RTSCTS
,
225 * Set up static virtual mappings.
227 static void __init
mx31_3ds_map_io(void)
233 * Board specific initialization.
235 static void __init
mxc_board_init(void)
237 mxc_iomux_setup_multiple_pins(mx31_3ds_pins
, ARRAY_SIZE(mx31_3ds_pins
),
240 imx31_add_imx_uart0(&uart_pdata
);
241 imx31_add_mxc_nand(&mx31_3ds_nand_board_info
);
243 imx31_add_spi_imx1(&spi1_pdata
);
244 spi_register_board_info(mx31_3ds_spi_devs
,
245 ARRAY_SIZE(mx31_3ds_spi_devs
));
247 imx31_add_imx_keypad(&mx31_3ds_keymap_data
);
249 mx31_3ds_usbotg_init();
250 imx31_add_fsl_usb2_udc(&usbotg_pdata
);
252 if (mxc_expio_init(MX31_CS5_BASE_ADDR
, EXPIO_PARENT_INT
))
253 printk(KERN_WARNING
"Init of the debug board failed, all "
254 "devices on the debug board are unusable.\n");
257 static void __init
mx31_3ds_timer_init(void)
259 mx31_clocks_init(26000000);
262 static struct sys_timer mx31_3ds_timer
= {
263 .init
= mx31_3ds_timer_init
,
267 * The following uses standard kernel macros defined in arch.h in order to
268 * initialize __mach_desc_MX31_3DS data structure.
270 MACHINE_START(MX31_3DS
, "Freescale MX31PDK (3DS)")
271 /* Maintainer: Freescale Semiconductor, Inc. */
272 .boot_params
= MX3x_PHYS_OFFSET
+ 0x100,
273 .map_io
= mx31_3ds_map_io
,
274 .init_irq
= mx31_init_irq
,
275 .init_machine
= mxc_board_init
,
276 .timer
= &mx31_3ds_timer
,