diff options
author | Linus Torvalds <torvalds@ppc970.osdl.org> | 2005-04-16 18:20:36 -0400 |
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committer | Linus Torvalds <torvalds@ppc970.osdl.org> | 2005-04-16 18:20:36 -0400 |
commit | 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 (patch) | |
tree | 0bba044c4ce775e45a88a51686b5d9f90697ea9d /drivers/mtd/maps/dbox2-flash.c |
Linux-2.6.12-rc2v2.6.12-rc2
Initial git repository build. I'm not bothering with the full history,
even though we have it. We can create a separate "historical" git
archive of that later if we want to, and in the meantime it's about
3.2GB when imported into git - space that would just make the early
git days unnecessarily complicated, when we don't have a lot of good
infrastructure for it.
Let it rip!
Diffstat (limited to 'drivers/mtd/maps/dbox2-flash.c')
-rw-r--r-- | drivers/mtd/maps/dbox2-flash.c | 126 |
1 files changed, 126 insertions, 0 deletions
diff --git a/drivers/mtd/maps/dbox2-flash.c b/drivers/mtd/maps/dbox2-flash.c new file mode 100644 index 000000000000..d850a27a4b59 --- /dev/null +++ b/drivers/mtd/maps/dbox2-flash.c | |||
@@ -0,0 +1,126 @@ | |||
1 | /* | ||
2 | * $Id: dbox2-flash.c,v 1.13 2004/11/04 13:24:14 gleixner Exp $ | ||
3 | * | ||
4 | * D-Box 2 flash driver | ||
5 | */ | ||
6 | |||
7 | #include <linux/module.h> | ||
8 | #include <linux/types.h> | ||
9 | #include <linux/kernel.h> | ||
10 | #include <linux/init.h> | ||
11 | #include <asm/io.h> | ||
12 | #include <linux/mtd/mtd.h> | ||
13 | #include <linux/mtd/map.h> | ||
14 | #include <linux/mtd/partitions.h> | ||
15 | #include <linux/config.h> | ||
16 | #include <linux/errno.h> | ||
17 | |||
18 | /* partition_info gives details on the logical partitions that the split the | ||
19 | * single flash device into. If the size if zero we use up to the end of the | ||
20 | * device. */ | ||
21 | static struct mtd_partition partition_info[]= { | ||
22 | { | ||
23 | .name = "BR bootloader", | ||
24 | .size = 128 * 1024, | ||
25 | .offset = 0, | ||
26 | .mask_flags = MTD_WRITEABLE | ||
27 | }, | ||
28 | { | ||
29 | .name = "FLFS (U-Boot)", | ||
30 | .size = 128 * 1024, | ||
31 | .offset = MTDPART_OFS_APPEND, | ||
32 | .mask_flags = 0 | ||
33 | }, | ||
34 | { | ||
35 | .name = "Root (SquashFS)", | ||
36 | .size = 7040 * 1024, | ||
37 | .offset = MTDPART_OFS_APPEND, | ||
38 | .mask_flags = 0 | ||
39 | }, | ||
40 | { | ||
41 | .name = "var (JFFS2)", | ||
42 | .size = 896 * 1024, | ||
43 | .offset = MTDPART_OFS_APPEND, | ||
44 | .mask_flags = 0 | ||
45 | }, | ||
46 | { | ||
47 | .name = "Flash without bootloader", | ||
48 | .size = MTDPART_SIZ_FULL, | ||
49 | .offset = 128 * 1024, | ||
50 | .mask_flags = 0 | ||
51 | }, | ||
52 | { | ||
53 | .name = "Complete Flash", | ||
54 | .size = MTDPART_SIZ_FULL, | ||
55 | .offset = 0, | ||
56 | .mask_flags = MTD_WRITEABLE | ||
57 | } | ||
58 | }; | ||
59 | |||
60 | #define NUM_PARTITIONS (sizeof(partition_info) / sizeof(partition_info[0])) | ||
61 | |||
62 | #define WINDOW_ADDR 0x10000000 | ||
63 | #define WINDOW_SIZE 0x800000 | ||
64 | |||
65 | static struct mtd_info *mymtd; | ||
66 | |||
67 | |||
68 | struct map_info dbox2_flash_map = { | ||
69 | .name = "D-Box 2 flash memory", | ||
70 | .size = WINDOW_SIZE, | ||
71 | .bankwidth = 4, | ||
72 | .phys = WINDOW_ADDR, | ||
73 | }; | ||
74 | |||
75 | int __init init_dbox2_flash(void) | ||
76 | { | ||
77 | printk(KERN_NOTICE "D-Box 2 flash driver (size->0x%X mem->0x%X)\n", WINDOW_SIZE, WINDOW_ADDR); | ||
78 | dbox2_flash_map.virt = ioremap(WINDOW_ADDR, WINDOW_SIZE); | ||
79 | |||
80 | if (!dbox2_flash_map.virt) { | ||
81 | printk("Failed to ioremap\n"); | ||
82 | return -EIO; | ||
83 | } | ||
84 | simple_map_init(&dbox2_flash_map); | ||
85 | |||
86 | // Probe for dual Intel 28F320 or dual AMD | ||
87 | mymtd = do_map_probe("cfi_probe", &dbox2_flash_map); | ||
88 | if (!mymtd) { | ||
89 | // Probe for single Intel 28F640 | ||
90 | dbox2_flash_map.bankwidth = 2; | ||
91 | |||
92 | mymtd = do_map_probe("cfi_probe", &dbox2_flash_map); | ||
93 | } | ||
94 | |||
95 | if (mymtd) { | ||
96 | mymtd->owner = THIS_MODULE; | ||
97 | |||
98 | /* Create MTD devices for each partition. */ | ||
99 | add_mtd_partitions(mymtd, partition_info, NUM_PARTITIONS); | ||
100 | |||
101 | return 0; | ||
102 | } | ||
103 | |||
104 | iounmap((void *)dbox2_flash_map.virt); | ||
105 | return -ENXIO; | ||
106 | } | ||
107 | |||
108 | static void __exit cleanup_dbox2_flash(void) | ||
109 | { | ||
110 | if (mymtd) { | ||
111 | del_mtd_partitions(mymtd); | ||
112 | map_destroy(mymtd); | ||
113 | } | ||
114 | if (dbox2_flash_map.virt) { | ||
115 | iounmap((void *)dbox2_flash_map.virt); | ||
116 | dbox2_flash_map.virt = 0; | ||
117 | } | ||
118 | } | ||
119 | |||
120 | module_init(init_dbox2_flash); | ||
121 | module_exit(cleanup_dbox2_flash); | ||
122 | |||
123 | |||
124 | MODULE_LICENSE("GPL"); | ||
125 | MODULE_AUTHOR("Kári Davíđsson <kd@flaga.is>, Bastian Blank <waldi@tuxbox.org>, Alexander Wild <wild@te-elektronik.com>"); | ||
126 | MODULE_DESCRIPTION("MTD map driver for D-Box 2 board"); | ||