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
|
/*
* Copyright (C) 2009 Renesas Solutions Corp.
*
* Kuninori Morimoto <morimoto.kuninori@renesas.com>
*
* This file is subject to the terms and conditions of the GNU General Public
* License. See the file "COPYING" in the main directory of this archive
* for more details.
*/
#include <linux/init.h>
#include <linux/device.h>
#include <linux/platform_device.h>
#include <linux/mtd/physmap.h>
#include <linux/gpio.h>
#include <linux/interrupt.h>
#include <asm/io.h>
#include <asm/heartbeat.h>
#include <cpu/sh7724.h>
/*
* Address Interface BusWidth
*-----------------------------------------
* 0x0000_0000 uboot 16bit
* 0x0004_0000 Linux romImage 16bit
* 0x0014_0000 MTD for Linux 16bit
* 0x0400_0000 Internal I/O 16/32bit
* 0x0800_0000 DRAM 32bit
* 0x1800_0000 MFI 16bit
*/
/* Heartbeat */
static unsigned char led_pos[] = { 0, 1, 2, 3 };
static struct heartbeat_data heartbeat_data = {
.regsize = 8,
.nr_bits = 4,
.bit_pos = led_pos,
};
static struct resource heartbeat_resources[] = {
[0] = {
.start = 0xA405012C, /* PTG */
.end = 0xA405012E - 1,
.flags = IORESOURCE_MEM,
},
};
static struct platform_device heartbeat_device = {
.name = "heartbeat",
.id = -1,
.dev = {
.platform_data = &heartbeat_data,
},
.num_resources = ARRAY_SIZE(heartbeat_resources),
.resource = heartbeat_resources,
};
/* MTD */
static struct mtd_partition nor_flash_partitions[] = {
{
.name = "boot loader",
.offset = 0,
.size = (5 * 1024 * 1024),
.mask_flags = MTD_CAP_ROM,
}, {
.name = "free-area",
.offset = MTDPART_OFS_APPEND,
.size = MTDPART_SIZ_FULL,
},
};
static struct physmap_flash_data nor_flash_data = {
.width = 2,
.parts = nor_flash_partitions,
.nr_parts = ARRAY_SIZE(nor_flash_partitions),
};
static struct resource nor_flash_resources[] = {
[0] = {
.name = "NOR Flash",
.start = 0x00000000,
.end = 0x03ffffff,
.flags = IORESOURCE_MEM,
}
};
static struct platform_device nor_flash_device = {
.name = "physmap-flash",
.resource = nor_flash_resources,
.num_resources = ARRAY_SIZE(nor_flash_resources),
.dev = {
.platform_data = &nor_flash_data,
},
};
static struct platform_device *ecovec_devices[] __initdata = {
&heartbeat_device,
&nor_flash_device,
};
static int __init devices_setup(void)
{
/* enable SCIFA0 */
gpio_request(GPIO_FN_SCIF0_TXD, NULL);
gpio_request(GPIO_FN_SCIF0_RXD, NULL);
/* enable debug LED */
gpio_request(GPIO_PTG0, NULL);
gpio_request(GPIO_PTG1, NULL);
gpio_request(GPIO_PTG2, NULL);
gpio_request(GPIO_PTG3, NULL);
gpio_direction_output(GPIO_PTG0, 0);
gpio_direction_output(GPIO_PTG1, 0);
gpio_direction_output(GPIO_PTG2, 0);
gpio_direction_output(GPIO_PTG3, 0);
return platform_add_devices(ecovec_devices,
ARRAY_SIZE(ecovec_devices));
}
device_initcall(devices_setup);
static struct sh_machine_vector mv_ecovec __initmv = {
.mv_name = "R0P7724 (EcoVec)",
};
|
