1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
|
/*
* Copyright (C) 2000 Deep Blue Solutions Ltd
* Copyright (C) 2002 Shane Nay (shane@minirl.com)
* Copyright 2005-2007 Freescale Semiconductor, Inc. All Rights Reserved.
* Copyright (C) 2009 Daniel Mack <daniel@caiaq.de>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#include <linux/types.h>
#include <linux/init.h>
#include <linux/kernel.h>
#include <linux/memory.h>
#include <linux/platform_device.h>
#include <linux/gpio.h>
#include <linux/smsc911x.h>
#include <linux/mfd/mc13783.h>
#include <linux/spi/spi.h>
#include <linux/usb/otg.h>
#include <linux/usb/ulpi.h>
#include <linux/mtd/physmap.h>
#include <asm/mach-types.h>
#include <asm/mach/arch.h>
#include <asm/mach/time.h>
#include <asm/mach/map.h>
#include <asm/page.h>
#include <asm/setup.h>
#include <mach/hardware.h>
#include <mach/common.h>
#include <mach/board-mx31lite.h>
#include <mach/imx-uart.h>
#include <mach/iomux-mx3.h>
#include <mach/irqs.h>
#include <mach/mxc_nand.h>
#include <mach/spi.h>
#include <mach/mxc_ehci.h>
#include <mach/ulpi.h>
#include "devices.h"
/*
* This file contains the module-specific initialization routines.
*/
static unsigned int mx31lite_pins[] = {
/* LAN9117 IRQ pin */
IOMUX_MODE(MX31_PIN_SFS6, IOMUX_CONFIG_GPIO),
/* SPI 1 */
MX31_PIN_CSPI2_SCLK__SCLK,
MX31_PIN_CSPI2_MOSI__MOSI,
MX31_PIN_CSPI2_MISO__MISO,
MX31_PIN_CSPI2_SPI_RDY__SPI_RDY,
MX31_PIN_CSPI2_SS0__SS0,
MX31_PIN_CSPI2_SS1__SS1,
MX31_PIN_CSPI2_SS2__SS2,
};
static struct mxc_nand_platform_data mx31lite_nand_board_info = {
.width = 1,
.hw_ecc = 1,
};
static struct smsc911x_platform_config smsc911x_config = {
.irq_polarity = SMSC911X_IRQ_POLARITY_ACTIVE_LOW,
.irq_type = SMSC911X_IRQ_TYPE_PUSH_PULL,
.flags = SMSC911X_USE_16BIT,
};
static struct resource smsc911x_resources[] = {
{
.start = CS4_BASE_ADDR,
.end = CS4_BASE_ADDR + 0x100,
.flags = IORESOURCE_MEM,
}, {
.start = IOMUX_TO_IRQ(MX31_PIN_SFS6),
.end = IOMUX_TO_IRQ(MX31_PIN_SFS6),
.flags = IORESOURCE_IRQ,
},
};
static struct platform_device smsc911x_device = {
.name = "smsc911x",
.id = -1,
.num_resources = ARRAY_SIZE(smsc911x_resources),
.resource = smsc911x_resources,
.dev = {
.platform_data = &smsc911x_config,
},
};
/*
* SPI
*
* The MC13783 is the only hard-wired SPI device on the module.
*/
static int spi_internal_chipselect[] = {
MXC_SPI_CS(0),
};
static struct spi_imx_master spi1_pdata = {
.chipselect = spi_internal_chipselect,
.num_chipselect = ARRAY_SIZE(spi_internal_chipselect),
};
static struct mc13783_platform_data mc13783_pdata __initdata = {
.flags = MC13783_USE_RTC |
MC13783_USE_REGULATOR,
};
static struct spi_board_info mc13783_spi_dev __initdata = {
.modalias = "mc13783",
.max_speed_hz = 1000000,
.bus_num = 1,
.chip_select = 0,
.platform_data = &mc13783_pdata,
.irq = IOMUX_TO_IRQ(MX31_PIN_GPIO1_3),
};
/*
* USB
*/
#if defined(CONFIG_USB_ULPI)
#define USB_PAD_CFG (PAD_CTL_DRV_MAX | PAD_CTL_SRE_FAST | PAD_CTL_HYS_CMOS | \
PAD_CTL_ODE_CMOS | PAD_CTL_100K_PU)
static int usbh2_init(struct platform_device *pdev)
{
int pins[] = {
MX31_PIN_USBH2_DATA0__USBH2_DATA0,
MX31_PIN_USBH2_DATA1__USBH2_DATA1,
MX31_PIN_USBH2_CLK__USBH2_CLK,
MX31_PIN_USBH2_DIR__USBH2_DIR,
MX31_PIN_USBH2_NXT__USBH2_NXT,
MX31_PIN_USBH2_STP__USBH2_STP,
};
mxc_iomux_setup_multiple_pins(pins, ARRAY_SIZE(pins), "USB H2");
mxc_iomux_set_pad(MX31_PIN_USBH2_CLK, USB_PAD_CFG);
mxc_iomux_set_pad(MX31_PIN_USBH2_DIR, USB_PAD_CFG);
mxc_iomux_set_pad(MX31_PIN_USBH2_NXT, USB_PAD_CFG);
mxc_iomux_set_pad(MX31_PIN_USBH2_STP, USB_PAD_CFG);
mxc_iomux_set_pad(MX31_PIN_USBH2_DATA0, USB_PAD_CFG);
mxc_iomux_set_pad(MX31_PIN_USBH2_DATA1, USB_PAD_CFG);
mxc_iomux_set_pad(MX31_PIN_SRXD6, USB_PAD_CFG);
mxc_iomux_set_pad(MX31_PIN_STXD6, USB_PAD_CFG);
mxc_iomux_set_pad(MX31_PIN_SFS3, USB_PAD_CFG);
mxc_iomux_set_pad(MX31_PIN_SCK3, USB_PAD_CFG);
mxc_iomux_set_pad(MX31_PIN_SRXD3, USB_PAD_CFG);
mxc_iomux_set_pad(MX31_PIN_STXD3, USB_PAD_CFG);
mxc_iomux_set_gpr(MUX_PGP_UH2, true);
/* chip select */
mxc_iomux_alloc_pin(IOMUX_MODE(MX31_PIN_DTR_DCE1, IOMUX_CONFIG_GPIO),
"USBH2_CS");
gpio_request(IOMUX_TO_GPIO(MX31_PIN_DTR_DCE1), "USBH2 CS");
gpio_direction_output(IOMUX_TO_GPIO(MX31_PIN_DTR_DCE1), 0);
return 0;
}
static struct mxc_usbh_platform_data usbh2_pdata = {
.init = usbh2_init,
.portsc = MXC_EHCI_MODE_ULPI | MXC_EHCI_UTMI_8BIT,
.flags = MXC_EHCI_POWER_PINS_ENABLED,
};
#endif
/*
* NOR flash
*/
static struct physmap_flash_data nor_flash_data = {
.width = 2,
};
static struct resource nor_flash_resource = {
.start = 0xa0000000,
.end = 0xa1ffffff,
.flags = IORESOURCE_MEM,
};
static struct platform_device physmap_flash_device = {
.name = "physmap-flash",
.id = 0,
.dev = {
.platform_data = &nor_flash_data,
},
.resource = &nor_flash_resource,
.num_resources = 1,
};
/*
* This structure defines the MX31 memory map.
*/
static struct map_desc mx31lite_io_desc[] __initdata = {
{
.virtual = CS4_BASE_ADDR_VIRT,
.pfn = __phys_to_pfn(CS4_BASE_ADDR),
.length = CS4_SIZE,
.type = MT_DEVICE
}
};
/*
* Set up static virtual mappings.
*/
void __init mx31lite_map_io(void)
{
mx31_map_io();
iotable_init(mx31lite_io_desc, ARRAY_SIZE(mx31lite_io_desc));
}
static int mx31lite_baseboard;
core_param(mx31lite_baseboard, mx31lite_baseboard, int, 0444);
static void __init mxc_board_init(void)
{
int ret;
switch (mx31lite_baseboard) {
case MX31LITE_NOBOARD:
break;
case MX31LITE_DB:
mx31lite_db_init();
break;
default:
printk(KERN_ERR "Illegal mx31lite_baseboard type %d\n",
mx31lite_baseboard);
}
mxc_iomux_setup_multiple_pins(mx31lite_pins, ARRAY_SIZE(mx31lite_pins),
"mx31lite");
/* NOR and NAND flash */
platform_device_register(&physmap_flash_device);
mxc_register_device(&mxc_nand_device, &mx31lite_nand_board_info);
mxc_register_device(&mxc_spi_device1, &spi1_pdata);
spi_register_board_info(&mc13783_spi_dev, 1);
#if defined(CONFIG_USB_ULPI)
/* USB */
usbh2_pdata.otg = otg_ulpi_create(&mxc_ulpi_access_ops,
USB_OTG_DRV_VBUS | USB_OTG_DRV_VBUS_EXT);
mxc_register_device(&mxc_usbh2, &usbh2_pdata);
#endif
/* SMSC9117 IRQ pin */
ret = gpio_request(IOMUX_TO_GPIO(MX31_PIN_SFS6), "sms9117-irq");
if (ret)
pr_warning("could not get LAN irq gpio\n");
else {
gpio_direction_input(IOMUX_TO_GPIO(MX31_PIN_SFS6));
platform_device_register(&smsc911x_device);
}
}
static void __init mx31lite_timer_init(void)
{
mx31_clocks_init(26000000);
}
struct sys_timer mx31lite_timer = {
.init = mx31lite_timer_init,
};
MACHINE_START(MX31LITE, "LogicPD i.MX31 SOM")
/* Maintainer: Freescale Semiconductor, Inc. */
.phys_io = AIPS1_BASE_ADDR,
.io_pg_offst = ((AIPS1_BASE_ADDR_VIRT) >> 18) & 0xfffc,
.boot_params = PHYS_OFFSET + 0x100,
.map_io = mx31lite_map_io,
.init_irq = mx31_init_irq,
.init_machine = mxc_board_init,
.timer = &mx31lite_timer,
MACHINE_END
|
