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
|
/*
* (C) 2007 Pengutronix, Sascha Hauer <s.hauer@pengutronix.de>
*
* See file CREDITS for list of people who contributed to this
* project.
*
* 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
*
* Board support for Phytec's, i.MX31 based CPU card, called: PCM037
*/
#include <common.h>
#include <init.h>
#include <driver.h>
#include <environment.h>
#include <asm/arch/imx-regs.h>
#include <asm/arch/gpio.h>
#include <asm/io.h>
#include <partition.h>
/*
* Up to 64MiB NOR type flash, connected to
* CS line 0, data width is 16 bit
*/
static struct device_d cfi_dev = {
.name = "cfi_flash",
.id = "nor0",
.map_base = IMX_CS0_BASE,
.size = IMX_CS0_RANGE, /* area size */
};
/*
* up to 2MiB static RAM type memory, connected
* to CS4, data width is 16 bit
*/
static struct device_d sram_dev = {
.name = "sram",
.id = "sram0",
.map_base = IMX_CS4_BASE,
.size = IMX_CS4_RANGE, /* area size */
};
/*
* ?MiB NAND type flash, data width 8 bit
*/
static struct device_d nand_dev = {
.name = "cfi_flash_nand",
.id = "nand0",
.map_base = 0x10000000, /* FIXME */
.size = 16 * 1024 * 1024, /* FIXME */
};
/*
* SMSC 9217 network controller
* connected to CS line 1 and interrupt line
* GPIO3, data width is 16 bit
*/
static struct device_d network_dev = {
.name = "smc911x",
.id = "eth0",
.map_base = IMX_CS1_BASE,
.size = IMX_CS1_RANGE, /* area size */
.type = DEVICE_TYPE_ETHER,
};
/*
* 128MiB of SDRAM, data width is 32 bit
*/
static struct device_d sdram_dev = {
.name = "ram",
.id = "ram0",
.map_base = IMX_SDRAM_CS0,
.size = 128 * 1024 * 1024, /* fix size */
.type = DEVICE_TYPE_DRAM,
};
static int imx31_devices_init(void)
{
__REG(CSCR_U(0)) = 0x0000cf03; /* CS0: Nor Flash */
__REG(CSCR_L(0)) = 0x10000d03;
__REG(CSCR_A(0)) = 0x00720900;
__REG(CSCR_U(1)) = 0x0000df06; /* CS1: Network Controller */
__REG(CSCR_L(1)) = 0x444a4541;
__REG(CSCR_A(1)) = 0x44443302;
__REG(CSCR_U(4)) = 0x0000d843; /* CS4: SRAM */
__REG(CSCR_L(4)) = 0x22252521;
__REG(CSCR_A(4)) = 0x22220a00;
/* setup pins for I2C2 (for EEPROM, RTC) */
imx_gpio_mode(MUX_CSPI2_MOSI_I2C2_SCL);
imx_gpio_mode(MUX_CSPI2_MISO_I2C2_SCL);
register_device(&cfi_dev);
/*
* Create partitions that should be
* not touched by any regular user
*/
dev_add_partition(&cfi_dev, 0x00000, 0x20000, PARTITION_FIXED, "self"); /* ourself */
dev_add_partition(&cfi_dev, 0x20000, 0x20000, PARTITION_FIXED, "env"); /* environment */
dev_protect(&cfi_dev, 0x20000, 0, 1);
register_device(&sram_dev);
register_device(&nand_dev);
register_device(&network_dev);
register_device(&sdram_dev);
return 0;
}
device_initcall(imx31_devices_init);
static struct device_d imx31_serial_device = {
.name = "imx_serial",
.id = "cs0",
.map_base = IMX_UART1_BASE,
.size = 16 * 1024,
.type = DEVICE_TYPE_CONSOLE,
};
static int imx31_console_init(void)
{
/* init gpios for serial port */
imx_gpio_mode(MUX_RXD1_UART1_RXD_MUX);
imx_gpio_mode(MUX_TXD1_UART1_TXD_MUX);
imx_gpio_mode(MUX_RTS1_UART1_RTS_B);
imx_gpio_mode(MUX_RTS1_UART1_CTS_B);
register_device(&imx31_serial_device);
return 0;
}
console_initcall(imx31_console_init);
|
