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
|
// SPDX-License-Identifier: GPL-2.0
/***************************************************************************/
/*
* firebee.c -- extra startup code support for the FireBee boards
*
* Copyright (C) 2011, Greg Ungerer (gerg@snapgear.com)
*/
/***************************************************************************/
#include <linux/kernel.h>
#include <linux/init.h>
#include <linux/io.h>
#include <linux/platform_device.h>
#include <linux/mtd/mtd.h>
#include <linux/mtd/partitions.h>
#include <linux/mtd/physmap.h>
#include <asm/coldfire.h>
#include <asm/mcfsim.h>
/***************************************************************************/
/*
* 8MB of NOR flash fitted to the FireBee board.
*/
#define FLASH_PHYS_ADDR 0xe0000000 /* Physical address of flash */
#define FLASH_PHYS_SIZE 0x00800000 /* Size of flash */
#define PART_BOOT_START 0x00000000 /* Start at bottom of flash */
#define PART_BOOT_SIZE 0x00040000 /* 256k in size */
#define PART_IMAGE_START 0x00040000 /* Start after boot loader */
#define PART_IMAGE_SIZE 0x006c0000 /* Most of flash */
#define PART_FPGA_START 0x00700000 /* Start at offset 7MB */
#define PART_FPGA_SIZE 0x00100000 /* 1MB in size */
static struct mtd_partition firebee_flash_parts[] = {
{
.name = "dBUG",
.offset = PART_BOOT_START,
.size = PART_BOOT_SIZE,
},
{
.name = "FPGA",
.offset = PART_FPGA_START,
.size = PART_FPGA_SIZE,
},
{
.name = "image",
.offset = PART_IMAGE_START,
.size = PART_IMAGE_SIZE,
},
};
static struct physmap_flash_data firebee_flash_data = {
.width = 2,
.nr_parts = ARRAY_SIZE(firebee_flash_parts),
.parts = firebee_flash_parts,
};
static struct resource firebee_flash_resource = {
.start = FLASH_PHYS_ADDR,
.end = FLASH_PHYS_ADDR + FLASH_PHYS_SIZE,
.flags = IORESOURCE_MEM,
};
static struct platform_device firebee_flash = {
.name = "physmap-flash",
.id = 0,
.dev = {
.platform_data = &firebee_flash_data,
},
.num_resources = 1,
.resource = &firebee_flash_resource,
};
/***************************************************************************/
static int __init init_firebee(void)
{
platform_device_register(&firebee_flash);
return 0;
}
arch_initcall(init_firebee);
/***************************************************************************/
|
