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1/*
2 * Copyright (C) 2000 Deep Blue Solutions Ltd
3 * Copyright (C) 2002 Shane Nay (shane@minirl.com)
4 * Copyright 2005-2007 Freescale Semiconductor, Inc. All Rights Reserved.
84677d11 5 * Copyright (C) 2009 Daniel Mack <daniel@caiaq.de>
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6 *
7 * This program is free software; you can redistribute it and/or modify
8 * it under the terms of the GNU General Public License as published by
9 * the Free Software Foundation; either version 2 of the License, or
10 * (at your option) any later version.
11 *
12 * This program is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 * GNU General Public License for more details.
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16 */
17
18#include <linux/types.h>
19#include <linux/init.h>
20#include <linux/kernel.h>
21#include <linux/memory.h>
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22#include <linux/platform_device.h>
23#include <linux/gpio.h>
24#include <linux/smsc911x.h>
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25#include <linux/mfd/mc13783.h>
26#include <linux/spi/spi.h>
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27#include <linux/usb/otg.h>
28#include <linux/usb/ulpi.h>
6d3e6601 29#include <linux/mtd/physmap.h>
9a4cd7a5 30
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31#include <asm/mach-types.h>
32#include <asm/mach/arch.h>
9e8a30dc 33#include <asm/mach/time.h>
9a4cd7a5 34#include <asm/mach/map.h>
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35#include <asm/page.h>
36#include <asm/setup.h>
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37
38#include <mach/hardware.h>
39#include <mach/common.h>
a09e64fb 40#include <mach/board-mx31lite.h>
a854b8ab 41#include <mach/iomux-mx3.h>
3211705f 42#include <mach/irqs.h>
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43#include <mach/mxc_ehci.h>
44#include <mach/ulpi.h>
84677d11 45
a2ceeef5 46#include "devices-imx31.h"
a854b8ab 47#include "devices.h"
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48
49/*
b7d91a62 50 * This file contains the module-specific initialization routines.
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51 */
52
a854b8ab 53static unsigned int mx31lite_pins[] = {
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54 /* LAN9117 IRQ pin */
55 IOMUX_MODE(MX31_PIN_SFS6, IOMUX_CONFIG_GPIO),
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56 /* SPI 1 */
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_SS1__SS1,
63 MX31_PIN_CSPI2_SS2__SS2,
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64};
65
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66static const struct mxc_nand_platform_data
67mx31lite_nand_board_info __initconst = {
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68 .width = 1,
69 .hw_ecc = 1,
70};
71
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72static struct smsc911x_platform_config smsc911x_config = {
73 .irq_polarity = SMSC911X_IRQ_POLARITY_ACTIVE_LOW,
74 .irq_type = SMSC911X_IRQ_TYPE_PUSH_PULL,
75 .flags = SMSC911X_USE_16BIT,
76};
77
78static struct resource smsc911x_resources[] = {
3f4f54b4 79 {
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80 .start = MX31_CS4_BASE_ADDR,
81 .end = MX31_CS4_BASE_ADDR + 0x100,
3211705f 82 .flags = IORESOURCE_MEM,
3f4f54b4 83 }, {
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84 .start = IOMUX_TO_IRQ(MX31_PIN_SFS6),
85 .end = IOMUX_TO_IRQ(MX31_PIN_SFS6),
86 .flags = IORESOURCE_IRQ,
87 },
88};
89
90static struct platform_device smsc911x_device = {
91 .name = "smsc911x",
92 .id = -1,
93 .num_resources = ARRAY_SIZE(smsc911x_resources),
94 .resource = smsc911x_resources,
95 .dev = {
96 .platform_data = &smsc911x_config,
97 },
98};
99
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100/*
101 * SPI
102 *
103 * The MC13783 is the only hard-wired SPI device on the module.
104 */
105
106static int spi_internal_chipselect[] = {
107 MXC_SPI_CS(0),
108};
109
06606ff1 110static const struct spi_imx_master spi1_pdata __initconst = {
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111 .chipselect = spi_internal_chipselect,
112 .num_chipselect = ARRAY_SIZE(spi_internal_chipselect),
113};
114
115static struct mc13783_platform_data mc13783_pdata __initdata = {
116 .flags = MC13783_USE_RTC |
117 MC13783_USE_REGULATOR,
118};
119
120static struct spi_board_info mc13783_spi_dev __initdata = {
121 .modalias = "mc13783",
122 .max_speed_hz = 1000000,
123 .bus_num = 1,
124 .chip_select = 0,
125 .platform_data = &mc13783_pdata,
126 .irq = IOMUX_TO_IRQ(MX31_PIN_GPIO1_3),
127};
128
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129/*
130 * USB
131 */
132
f9ffaa9c 133#if defined(CONFIG_USB_ULPI)
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134#define USB_PAD_CFG (PAD_CTL_DRV_MAX | PAD_CTL_SRE_FAST | PAD_CTL_HYS_CMOS | \
135 PAD_CTL_ODE_CMOS | PAD_CTL_100K_PU)
136
137static int usbh2_init(struct platform_device *pdev)
138{
139 int pins[] = {
140 MX31_PIN_USBH2_DATA0__USBH2_DATA0,
141 MX31_PIN_USBH2_DATA1__USBH2_DATA1,
142 MX31_PIN_USBH2_CLK__USBH2_CLK,
143 MX31_PIN_USBH2_DIR__USBH2_DIR,
144 MX31_PIN_USBH2_NXT__USBH2_NXT,
145 MX31_PIN_USBH2_STP__USBH2_STP,
146 };
147
148 mxc_iomux_setup_multiple_pins(pins, ARRAY_SIZE(pins), "USB H2");
149
150 mxc_iomux_set_pad(MX31_PIN_USBH2_CLK, USB_PAD_CFG);
151 mxc_iomux_set_pad(MX31_PIN_USBH2_DIR, USB_PAD_CFG);
152 mxc_iomux_set_pad(MX31_PIN_USBH2_NXT, USB_PAD_CFG);
153 mxc_iomux_set_pad(MX31_PIN_USBH2_STP, USB_PAD_CFG);
154 mxc_iomux_set_pad(MX31_PIN_USBH2_DATA0, USB_PAD_CFG);
155 mxc_iomux_set_pad(MX31_PIN_USBH2_DATA1, USB_PAD_CFG);
156 mxc_iomux_set_pad(MX31_PIN_SRXD6, USB_PAD_CFG);
157 mxc_iomux_set_pad(MX31_PIN_STXD6, USB_PAD_CFG);
158 mxc_iomux_set_pad(MX31_PIN_SFS3, USB_PAD_CFG);
159 mxc_iomux_set_pad(MX31_PIN_SCK3, USB_PAD_CFG);
160 mxc_iomux_set_pad(MX31_PIN_SRXD3, USB_PAD_CFG);
161 mxc_iomux_set_pad(MX31_PIN_STXD3, USB_PAD_CFG);
162
163 mxc_iomux_set_gpr(MUX_PGP_UH2, true);
164
165 /* chip select */
166 mxc_iomux_alloc_pin(IOMUX_MODE(MX31_PIN_DTR_DCE1, IOMUX_CONFIG_GPIO),
167 "USBH2_CS");
168 gpio_request(IOMUX_TO_GPIO(MX31_PIN_DTR_DCE1), "USBH2 CS");
169 gpio_direction_output(IOMUX_TO_GPIO(MX31_PIN_DTR_DCE1), 0);
170
171 return 0;
172}
173
174static struct mxc_usbh_platform_data usbh2_pdata = {
175 .init = usbh2_init,
176 .portsc = MXC_EHCI_MODE_ULPI | MXC_EHCI_UTMI_8BIT,
177 .flags = MXC_EHCI_POWER_PINS_ENABLED,
178};
f9ffaa9c 179#endif
a050c8e9 180
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181/*
182 * NOR flash
183 */
184
185static struct physmap_flash_data nor_flash_data = {
186 .width = 2,
187};
188
189static struct resource nor_flash_resource = {
190 .start = 0xa0000000,
191 .end = 0xa1ffffff,
192 .flags = IORESOURCE_MEM,
193};
194
195static struct platform_device physmap_flash_device = {
196 .name = "physmap-flash",
197 .id = 0,
198 .dev = {
199 .platform_data = &nor_flash_data,
200 },
201 .resource = &nor_flash_resource,
202 .num_resources = 1,
203};
204
205
206
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207/*
208 * This structure defines the MX31 memory map.
209 */
210static struct map_desc mx31lite_io_desc[] __initdata = {
211 {
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212 .virtual = MX31_CS4_BASE_ADDR_VIRT,
213 .pfn = __phys_to_pfn(MX31_CS4_BASE_ADDR),
214 .length = MX31_CS4_SIZE,
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215 .type = MT_DEVICE
216 }
217};
218
219/*
220 * Set up static virtual mappings.
221 */
222void __init mx31lite_map_io(void)
223{
cd4a05f9 224 mx31_map_io();
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225 iotable_init(mx31lite_io_desc, ARRAY_SIZE(mx31lite_io_desc));
226}
227
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228static int mx31lite_baseboard;
229core_param(mx31lite_baseboard, mx31lite_baseboard, int, 0444);
230
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231static void __init mxc_board_init(void)
232{
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233 int ret;
234
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235 switch (mx31lite_baseboard) {
236 case MX31LITE_NOBOARD:
237 break;
238 case MX31LITE_DB:
239 mx31lite_db_init();
240 break;
241 default:
242 printk(KERN_ERR "Illegal mx31lite_baseboard type %d\n",
243 mx31lite_baseboard);
244 }
245
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246 mxc_iomux_setup_multiple_pins(mx31lite_pins, ARRAY_SIZE(mx31lite_pins),
247 "mx31lite");
248
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249 /* NOR and NAND flash */
250 platform_device_register(&physmap_flash_device);
a2ceeef5 251 imx31_add_mxc_nand(&mx31lite_nand_board_info);
6d3e6601 252
06606ff1 253 imx31_add_spi_imx1(&spi1_pdata);
84677d11 254 spi_register_board_info(&mc13783_spi_dev, 1);
3211705f 255
f9ffaa9c 256#if defined(CONFIG_USB_ULPI)
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257 /* USB */
258 usbh2_pdata.otg = otg_ulpi_create(&mxc_ulpi_access_ops,
13dd0c97 259 ULPI_OTG_DRVVBUS | ULPI_OTG_DRVVBUS_EXT);
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260
261 mxc_register_device(&mxc_usbh2, &usbh2_pdata);
f9ffaa9c 262#endif
a050c8e9 263
3211705f 264 /* SMSC9117 IRQ pin */
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265 ret = gpio_request(IOMUX_TO_GPIO(MX31_PIN_SFS6), "sms9117-irq");
266 if (ret)
267 pr_warning("could not get LAN irq gpio\n");
268 else {
269 gpio_direction_input(IOMUX_TO_GPIO(MX31_PIN_SFS6));
270 platform_device_register(&smsc911x_device);
271 }
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272}
273
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274static void __init mx31lite_timer_init(void)
275{
30c730f8 276 mx31_clocks_init(26000000);
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277}
278
279struct sys_timer mx31lite_timer = {
280 .init = mx31lite_timer_init,
281};
282
b7d91a62 283MACHINE_START(MX31LITE, "LogicPD i.MX31 SOM")
9a4cd7a5 284 /* Maintainer: Freescale Semiconductor, Inc. */
f568dd7f 285 .phys_io = MX31_AIPS1_BASE_ADDR,
321ed164 286 .io_pg_offst = (MX31_AIPS1_BASE_ADDR_VIRT >> 18) & 0xfffc,
34101237 287 .boot_params = MX3x_PHYS_OFFSET + 0x100,
9a4cd7a5 288 .map_io = mx31lite_map_io,
c5aa0ad0 289 .init_irq = mx31_init_irq,
9a4cd7a5 290 .init_machine = mxc_board_init,
9e8a30dc 291 .timer = &mx31lite_timer,
9a4cd7a5 292MACHINE_END