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b2441318 | 1 | // SPDX-License-Identifier: GPL-2.0 |
7badfabb GU |
2 | /***************************************************************************/ |
3 | ||
4 | /* | |
5 | * firebee.c -- extra startup code support for the FireBee boards | |
6 | * | |
7 | * Copyright (C) 2011, Greg Ungerer (gerg@snapgear.com) | |
8 | */ | |
9 | ||
10 | /***************************************************************************/ | |
11 | ||
12 | #include <linux/kernel.h> | |
13 | #include <linux/init.h> | |
14 | #include <linux/io.h> | |
15 | #include <linux/platform_device.h> | |
16 | #include <linux/mtd/mtd.h> | |
17 | #include <linux/mtd/partitions.h> | |
18 | #include <linux/mtd/physmap.h> | |
19 | #include <asm/coldfire.h> | |
20 | #include <asm/mcfsim.h> | |
21 | ||
22 | /***************************************************************************/ | |
23 | ||
24 | /* | |
25 | * 8MB of NOR flash fitted to the FireBee board. | |
26 | */ | |
27 | #define FLASH_PHYS_ADDR 0xe0000000 /* Physical address of flash */ | |
28 | #define FLASH_PHYS_SIZE 0x00800000 /* Size of flash */ | |
29 | ||
30 | #define PART_BOOT_START 0x00000000 /* Start at bottom of flash */ | |
31 | #define PART_BOOT_SIZE 0x00040000 /* 256k in size */ | |
32 | #define PART_IMAGE_START 0x00040000 /* Start after boot loader */ | |
33 | #define PART_IMAGE_SIZE 0x006c0000 /* Most of flash */ | |
34 | #define PART_FPGA_START 0x00700000 /* Start at offset 7MB */ | |
35 | #define PART_FPGA_SIZE 0x00100000 /* 1MB in size */ | |
36 | ||
37 | static struct mtd_partition firebee_flash_parts[] = { | |
38 | { | |
39 | .name = "dBUG", | |
40 | .offset = PART_BOOT_START, | |
41 | .size = PART_BOOT_SIZE, | |
42 | }, | |
43 | { | |
44 | .name = "FPGA", | |
45 | .offset = PART_FPGA_START, | |
46 | .size = PART_FPGA_SIZE, | |
47 | }, | |
48 | { | |
49 | .name = "image", | |
50 | .offset = PART_IMAGE_START, | |
51 | .size = PART_IMAGE_SIZE, | |
52 | }, | |
53 | }; | |
54 | ||
55 | static struct physmap_flash_data firebee_flash_data = { | |
56 | .width = 2, | |
57 | .nr_parts = ARRAY_SIZE(firebee_flash_parts), | |
58 | .parts = firebee_flash_parts, | |
59 | }; | |
60 | ||
61 | static struct resource firebee_flash_resource = { | |
62 | .start = FLASH_PHYS_ADDR, | |
63 | .end = FLASH_PHYS_ADDR + FLASH_PHYS_SIZE, | |
64 | .flags = IORESOURCE_MEM, | |
65 | }; | |
66 | ||
67 | static struct platform_device firebee_flash = { | |
68 | .name = "physmap-flash", | |
69 | .id = 0, | |
70 | .dev = { | |
71 | .platform_data = &firebee_flash_data, | |
72 | }, | |
73 | .num_resources = 1, | |
74 | .resource = &firebee_flash_resource, | |
75 | }; | |
76 | ||
77 | /***************************************************************************/ | |
78 | ||
79 | static int __init init_firebee(void) | |
80 | { | |
81 | platform_device_register(&firebee_flash); | |
82 | return 0; | |
83 | } | |
84 | ||
85 | arch_initcall(init_firebee); | |
86 | ||
87 | /***************************************************************************/ |