1 /***************************************************************************/
2
3 /*
4 * firebee.c -- extra startup code support for the FireBee boards
5 *
6 * Copyright (C) 2011, Greg Ungerer (gerg@snapgear.com)
7 */
8
9 /***************************************************************************/
10
11 #include <linux/kernel.h>
12 #include <linux/init.h>
13 #include <linux/io.h>
14 #include <linux/platform_device.h>
15 #include <linux/mtd/mtd.h>
16 #include <linux/mtd/partitions.h>
17 #include <linux/mtd/physmap.h>
18 #include <asm/coldfire.h>
19 #include <asm/mcfsim.h>
20
21 /***************************************************************************/
22
23 /*
24 * 8MB of NOR flash fitted to the FireBee board.
25 */
26 #define FLASH_PHYS_ADDR 0xe0000000 /* Physical address of flash */
27 #define FLASH_PHYS_SIZE 0x00800000 /* Size of flash */
28
29 #define PART_BOOT_START 0x00000000 /* Start at bottom of flash */
30 #define PART_BOOT_SIZE 0x00040000 /* 256k in size */
31 #define PART_IMAGE_START 0x00040000 /* Start after boot loader */
32 #define PART_IMAGE_SIZE 0x006c0000 /* Most of flash */
33 #define PART_FPGA_START 0x00700000 /* Start at offset 7MB */
34 #define PART_FPGA_SIZE 0x00100000 /* 1MB in size */
35
36 static struct mtd_partition firebee_flash_parts[] = {
37 {
38 .name = "dBUG",
39 .offset = PART_BOOT_START,
40 .size = PART_BOOT_SIZE,
41 },
42 {
43 .name = "FPGA",
44 .offset = PART_FPGA_START,
45 .size = PART_FPGA_SIZE,
46 },
47 {
48 .name = "image",
49 .offset = PART_IMAGE_START,
50 .size = PART_IMAGE_SIZE,
51 },
52 };
53
54 static struct physmap_flash_data firebee_flash_data = {
55 .width = 2,
56 .nr_parts = ARRAY_SIZE(firebee_flash_parts),
57 .parts = firebee_flash_parts,
58 };
59
60 static struct resource firebee_flash_resource = {
61 .start = FLASH_PHYS_ADDR,
62 .end = FLASH_PHYS_ADDR + FLASH_PHYS_SIZE,
63 .flags = IORESOURCE_MEM,
64 };
65
66 static struct platform_device firebee_flash = {
67 .name = "physmap-flash",
68 .id = 0,
69 .dev = {
70 .platform_data = &firebee_flash_data,
71 },
72 .num_resources = 1,
73 .resource = &firebee_flash_resource,
74 };
75
76 /***************************************************************************/
77
init_firebee(void)78 static int __init init_firebee(void)
79 {
80 platform_device_register(&firebee_flash);
81 return 0;
82 }
83
84 arch_initcall(init_firebee);
85
86 /***************************************************************************/
87