ARM: mx3: dynamically allocate imx2-wdt devices
[deliverable/linux.git] / arch / arm / mach-mx3 / mach-mx31_3ds.c
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1/*
2 * Copyright 2008 Freescale Semiconductor, Inc. All Rights Reserved.
3 *
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.
8 *
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.
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13 */
14
a2ef4562 15#include <linux/delay.h>
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16#include <linux/types.h>
17#include <linux/init.h>
18#include <linux/clk.h>
19#include <linux/irq.h>
135cad36 20#include <linux/gpio.h>
2b0c3677 21#include <linux/platform_device.h>
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22#include <linux/mfd/mc13783.h>
23#include <linux/spi/spi.h>
24#include <linux/regulator/machine.h>
54c1f636 25#include <linux/input/matrix_keypad.h>
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26
27#include <mach/hardware.h>
28#include <asm/mach-types.h>
29#include <asm/mach/arch.h>
30#include <asm/mach/time.h>
31#include <asm/memory.h>
32#include <asm/mach/map.h>
33#include <mach/common.h>
1553a1ec 34#include <mach/iomux-mx3.h>
c5d38f08 35#include <mach/3ds_debugboard.h>
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36
37#include "devices-imx31.h"
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38#include "devices.h"
39
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40/* CPLD IRQ line for external uart, external ethernet etc */
41#define EXPIO_PARENT_INT IOMUX_TO_IRQ(MX31_PIN_GPIO1_1)
42
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43/*
44 * This file contains the board-specific initialization routines.
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45 */
46
11a332ad 47static int mx31_3ds_pins[] = {
153fa1d8 48 /* UART1 */
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49 MX31_PIN_CTS1__CTS1,
50 MX31_PIN_RTS1__RTS1,
51 MX31_PIN_TXD1__TXD1,
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52 MX31_PIN_RXD1__RXD1,
53 IOMUX_MODE(MX31_PIN_GPIO1_1, IOMUX_CONFIG_GPIO),
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54 /* SPI 1 */
55 MX31_PIN_CSPI2_SCLK__SCLK,
56 MX31_PIN_CSPI2_MOSI__MOSI,
57 MX31_PIN_CSPI2_MISO__MISO,
58 MX31_PIN_CSPI2_SPI_RDY__SPI_RDY,
59 MX31_PIN_CSPI2_SS0__SS0,
60 MX31_PIN_CSPI2_SS2__SS2, /*CS for MC13783 */
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61 /* MC13783 IRQ */
62 IOMUX_MODE(MX31_PIN_GPIO1_3, IOMUX_CONFIG_GPIO),
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63 /* USB OTG reset */
64 IOMUX_MODE(MX31_PIN_USB_PWR, IOMUX_CONFIG_GPIO),
65 /* USB OTG */
66 MX31_PIN_USBOTG_DATA0__USBOTG_DATA0,
67 MX31_PIN_USBOTG_DATA1__USBOTG_DATA1,
68 MX31_PIN_USBOTG_DATA2__USBOTG_DATA2,
69 MX31_PIN_USBOTG_DATA3__USBOTG_DATA3,
70 MX31_PIN_USBOTG_DATA4__USBOTG_DATA4,
71 MX31_PIN_USBOTG_DATA5__USBOTG_DATA5,
72 MX31_PIN_USBOTG_DATA6__USBOTG_DATA6,
73 MX31_PIN_USBOTG_DATA7__USBOTG_DATA7,
74 MX31_PIN_USBOTG_CLK__USBOTG_CLK,
75 MX31_PIN_USBOTG_DIR__USBOTG_DIR,
76 MX31_PIN_USBOTG_NXT__USBOTG_NXT,
77 MX31_PIN_USBOTG_STP__USBOTG_STP,
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78 /*Keyboard*/
79 MX31_PIN_KEY_ROW0_KEY_ROW0,
80 MX31_PIN_KEY_ROW1_KEY_ROW1,
81 MX31_PIN_KEY_ROW2_KEY_ROW2,
82 MX31_PIN_KEY_COL0_KEY_COL0,
83 MX31_PIN_KEY_COL1_KEY_COL1,
84 MX31_PIN_KEY_COL2_KEY_COL2,
85 MX31_PIN_KEY_COL3_KEY_COL3,
86};
87
88/*
89 * Matrix keyboard
90 */
91
92static const uint32_t mx31_3ds_keymap[] = {
93 KEY(0, 0, KEY_UP),
94 KEY(0, 1, KEY_DOWN),
95 KEY(1, 0, KEY_RIGHT),
96 KEY(1, 1, KEY_LEFT),
97 KEY(1, 2, KEY_ENTER),
98 KEY(2, 0, KEY_F6),
99 KEY(2, 1, KEY_F8),
100 KEY(2, 2, KEY_F9),
101 KEY(2, 3, KEY_F10),
102};
103
104static struct matrix_keymap_data mx31_3ds_keymap_data = {
105 .keymap = mx31_3ds_keymap,
106 .keymap_size = ARRAY_SIZE(mx31_3ds_keymap),
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107};
108
109/* Regulators */
110static struct regulator_init_data pwgtx_init = {
111 .constraints = {
112 .boot_on = 1,
113 .always_on = 1,
114 },
115};
116
117static struct mc13783_regulator_init_data mx31_3ds_regulators[] = {
118 {
119 .id = MC13783_REGU_PWGT1SPI, /* Power Gate for ARM core. */
120 .init_data = &pwgtx_init,
121 }, {
122 .id = MC13783_REGU_PWGT2SPI, /* Power Gate for L2 Cache. */
123 .init_data = &pwgtx_init,
124 },
125};
126
127/* MC13783 */
128static struct mc13783_platform_data mc13783_pdata __initdata = {
129 .regulators = mx31_3ds_regulators,
130 .num_regulators = ARRAY_SIZE(mx31_3ds_regulators),
131 .flags = MC13783_USE_REGULATOR,
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132};
133
134/* SPI */
135static int spi1_internal_chipselect[] = {
136 MXC_SPI_CS(0),
137 MXC_SPI_CS(2),
138};
139
06606ff1 140static const struct spi_imx_master spi1_pdata __initconst = {
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141 .chipselect = spi1_internal_chipselect,
142 .num_chipselect = ARRAY_SIZE(spi1_internal_chipselect),
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143};
144
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145static struct spi_board_info mx31_3ds_spi_devs[] __initdata = {
146 {
147 .modalias = "mc13783",
148 .max_speed_hz = 1000000,
149 .bus_num = 1,
150 .chip_select = 1, /* SS2 */
151 .platform_data = &mc13783_pdata,
152 .irq = IOMUX_TO_IRQ(MX31_PIN_GPIO1_3),
153 .mode = SPI_CS_HIGH,
154 },
155};
156
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157/*
158 * NAND Flash
159 */
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160static const struct mxc_nand_platform_data
161mx31_3ds_nand_board_info __initconst = {
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162 .width = 1,
163 .hw_ecc = 1,
164#ifdef MACH_MX31_3DS_MXC_NAND_USE_BBT
165 .flash_bbt = 1,
166#endif
167};
168
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169/*
170 * USB OTG
171 */
172
173#define USB_PAD_CFG (PAD_CTL_DRV_MAX | PAD_CTL_SRE_FAST | PAD_CTL_HYS_CMOS | \
174 PAD_CTL_ODE_CMOS | PAD_CTL_100K_PU)
175
176#define USBOTG_RST_B IOMUX_TO_GPIO(MX31_PIN_USB_PWR)
177
41f63475 178static int mx31_3ds_usbotg_init(void)
a2ef4562 179{
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180 int err;
181
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182 mxc_iomux_set_pad(MX31_PIN_USBOTG_DATA0, USB_PAD_CFG);
183 mxc_iomux_set_pad(MX31_PIN_USBOTG_DATA1, USB_PAD_CFG);
184 mxc_iomux_set_pad(MX31_PIN_USBOTG_DATA2, USB_PAD_CFG);
185 mxc_iomux_set_pad(MX31_PIN_USBOTG_DATA3, USB_PAD_CFG);
186 mxc_iomux_set_pad(MX31_PIN_USBOTG_DATA4, USB_PAD_CFG);
187 mxc_iomux_set_pad(MX31_PIN_USBOTG_DATA5, USB_PAD_CFG);
188 mxc_iomux_set_pad(MX31_PIN_USBOTG_DATA6, USB_PAD_CFG);
189 mxc_iomux_set_pad(MX31_PIN_USBOTG_DATA7, USB_PAD_CFG);
190 mxc_iomux_set_pad(MX31_PIN_USBOTG_CLK, USB_PAD_CFG);
191 mxc_iomux_set_pad(MX31_PIN_USBOTG_DIR, USB_PAD_CFG);
192 mxc_iomux_set_pad(MX31_PIN_USBOTG_NXT, USB_PAD_CFG);
193 mxc_iomux_set_pad(MX31_PIN_USBOTG_STP, USB_PAD_CFG);
194
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195 err = gpio_request(USBOTG_RST_B, "otgusb-reset");
196 if (err) {
197 pr_err("Failed to request the USB OTG reset gpio\n");
198 return err;
199 }
200
201 err = gpio_direction_output(USBOTG_RST_B, 0);
202 if (err) {
203 pr_err("Failed to drive the USB OTG reset gpio\n");
204 goto usbotg_free_reset;
205 }
206
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207 mdelay(1);
208 gpio_set_value(USBOTG_RST_B, 1);
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209 return 0;
210
211usbotg_free_reset:
212 gpio_free(USBOTG_RST_B);
213 return err;
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214}
215
9e1dde33 216static const struct fsl_usb2_platform_data usbotg_pdata __initconst = {
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217 .operating_mode = FSL_USB2_DR_DEVICE,
218 .phy_mode = FSL_USB2_PHY_ULPI,
219};
220
16cf5c41 221static const struct imxuart_platform_data uart_pdata __initconst = {
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222 .flags = IMXUART_HAVE_RTSCTS,
223};
1553a1ec 224
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225/*
226 * Set up static virtual mappings.
227 */
11a332ad 228static void __init mx31_3ds_map_io(void)
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229{
230 mx31_map_io();
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231}
232
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233/*!
234 * Board specific initialization.
235 */
236static void __init mxc_board_init(void)
237{
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238 mxc_iomux_setup_multiple_pins(mx31_3ds_pins, ARRAY_SIZE(mx31_3ds_pins),
239 "mx31_3ds");
153fa1d8 240
16cf5c41 241 imx31_add_imx_uart0(&uart_pdata);
a2ceeef5 242 imx31_add_mxc_nand(&mx31_3ds_nand_board_info);
ae7a3f13 243
4a74bddc 244 imx31_add_spi_imx1(&spi1_pdata);
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245 spi_register_board_info(mx31_3ds_spi_devs,
246 ARRAY_SIZE(mx31_3ds_spi_devs));
135cad36 247
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248 mxc_register_device(&imx_kpp_device, &mx31_3ds_keymap_data);
249
a2ef4562 250 mx31_3ds_usbotg_init();
9e1dde33 251 imx31_add_fsl_usb2_udc(&usbotg_pdata);
a2ef4562 252
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253 if (mxc_expio_init(MX31_CS5_BASE_ADDR, EXPIO_PARENT_INT))
254 printk(KERN_WARNING "Init of the debug board failed, all "
255 "devices on the debug board are unusable.\n");
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256}
257
11a332ad 258static void __init mx31_3ds_timer_init(void)
1553a1ec 259{
30c730f8 260 mx31_clocks_init(26000000);
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261}
262
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263static struct sys_timer mx31_3ds_timer = {
264 .init = mx31_3ds_timer_init,
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265};
266
267/*
268 * The following uses standard kernel macros defined in arch.h in order to
11a332ad 269 * initialize __mach_desc_MX31_3DS data structure.
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270 */
271MACHINE_START(MX31_3DS, "Freescale MX31PDK (3DS)")
272 /* Maintainer: Freescale Semiconductor, Inc. */
34101237 273 .boot_params = MX3x_PHYS_OFFSET + 0x100,
11a332ad 274 .map_io = mx31_3ds_map_io,
c5aa0ad0 275 .init_irq = mx31_init_irq,
1553a1ec 276 .init_machine = mxc_board_init,
11a332ad 277 .timer = &mx31_3ds_timer,
1553a1ec 278MACHINE_END
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