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
|
/*
* This program is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License version 2 as published
* by the Free Software Foundation.
*
* Copyright (C) 2011 Thomas Langer <thomas.langer@lantiq.com>
* Copyright (C) 2011 John Crispin <blogic@openwrt.org>
*/
#include <linux/platform_device.h>
#include <linux/mtd/partitions.h>
#include <linux/spi/spi.h>
#include <linux/spi/spi_gpio.h>
#include <linux/spi/eeprom.h>
#include "../machtypes.h"
#include "devices.h"
static struct mtd_partition easy98000_nor_partitions[] = {
{
.name = "uboot",
.offset = 0x0,
.size = 0x40000,
},
{
.name = "uboot_env",
.offset = 0x40000,
.size = 0x40000, /* 2 sectors for redundant env. */
},
{
.name = "linux",
.offset = 0x80000,
.size = 0xF80000, /* map only 16 MiB */
},
};
struct physmap_flash_data easy98000_nor_flash_data = {
.nr_parts = ARRAY_SIZE(easy98000_nor_partitions),
.parts = easy98000_nor_partitions,
};
static struct flash_platform_data easy98000_spi_flash_platform_data = {
.name = "sflash",
.parts = easy98000_nor_partitions,
.nr_parts = ARRAY_SIZE(easy98000_nor_partitions)
};
static struct spi_board_info easy98000_spi_flash_data __initdata = {
.modalias = "m25p80",
.bus_num = 0,
.chip_select = 0,
.max_speed_hz = 10 * 1000 * 1000,
.mode = SPI_MODE_3,
.platform_data = &easy98000_spi_flash_platform_data
};
/* setup gpio based spi bus/device for access to the eeprom on the board */
#define SPI_GPIO_MRST 102
#define SPI_GPIO_MTSR 103
#define SPI_GPIO_CLK 104
#define SPI_GPIO_CS0 105
#define SPI_GPIO_CS1 106
#define SPI_GPIO_BUS_NUM 1
static struct spi_gpio_platform_data easy98000_spi_gpio_data = {
.sck = SPI_GPIO_CLK,
.mosi = SPI_GPIO_MTSR,
.miso = SPI_GPIO_MRST,
.num_chipselect = 2,
};
static struct platform_device easy98000_spi_gpio_device = {
.name = "spi_gpio",
.id = SPI_GPIO_BUS_NUM,
.dev.platform_data = &easy98000_spi_gpio_data,
};
static struct spi_eeprom at25160n = {
.byte_len = 16 * 1024 / 8,
.name = "at25160n",
.page_size = 32,
.flags = EE_ADDR2,
};
static struct spi_board_info easy98000_spi_gpio_devices __initdata = {
.modalias = "at25",
.bus_num = SPI_GPIO_BUS_NUM,
.max_speed_hz = 1000 * 1000,
.mode = SPI_MODE_3,
.chip_select = 1,
.controller_data = (void *) SPI_GPIO_CS1,
.platform_data = &at25160n,
};
static void __init
easy98000_init_common(void)
{
spi_register_board_info(&easy98000_spi_gpio_devices, 1);
platform_device_register(&easy98000_spi_gpio_device);
falcon_register_i2c();
}
static void __init
easy98000_init(void)
{
easy98000_init_common();
ltq_register_nor(&easy98000_nor_flash_data);
}
static void __init
easy98000sf_init(void)
{
easy98000_init_common();
falcon_register_spi_flash(&easy98000_spi_flash_data);
}
static void __init
easy98000nand_init(void)
{
easy98000_init_common();
falcon_register_nand();
}
MIPS_MACHINE(LANTIQ_MACH_EASY98000,
"EASY98000",
"EASY98000 Eval Board",
easy98000_init);
MIPS_MACHINE(LANTIQ_MACH_EASY98000SF,
"EASY98000SF",
"EASY98000 Eval Board (Serial Flash)",
easy98000sf_init);
MIPS_MACHINE(LANTIQ_MACH_EASY98000NAND,
"EASY98000NAND",
"EASY98000 Eval Board (NAND Flash)",
easy98000nand_init);
|
