diff options
Diffstat (limited to 'include/linux/mtd/jedec.h')
-rw-r--r-- | include/linux/mtd/jedec.h | 20 |
1 files changed, 10 insertions, 10 deletions
diff --git a/include/linux/mtd/jedec.h b/include/linux/mtd/jedec.h index 2ba0f700ddbc..9006feb218b9 100644 --- a/include/linux/mtd/jedec.h +++ b/include/linux/mtd/jedec.h | |||
@@ -1,13 +1,13 @@ | |||
1 | 1 | ||
2 | /* JEDEC Flash Interface. | 2 | /* JEDEC Flash Interface. |
3 | * This is an older type of interface for self programming flash. It is | 3 | * This is an older type of interface for self programming flash. It is |
4 | * commonly use in older AMD chips and is obsolete compared with CFI. | 4 | * commonly use in older AMD chips and is obsolete compared with CFI. |
5 | * It is called JEDEC because the JEDEC association distributes the ID codes | 5 | * It is called JEDEC because the JEDEC association distributes the ID codes |
6 | * for the chips. | 6 | * for the chips. |
7 | * | 7 | * |
8 | * See the AMD flash databook for information on how to operate the interface. | 8 | * See the AMD flash databook for information on how to operate the interface. |
9 | * | 9 | * |
10 | * $Id: jedec.h,v 1.3 2003/05/21 11:51:01 dwmw2 Exp $ | 10 | * $Id: jedec.h,v 1.4 2005/11/07 11:14:54 gleixner Exp $ |
11 | */ | 11 | */ |
12 | 12 | ||
13 | #ifndef __LINUX_MTD_JEDEC_H__ | 13 | #ifndef __LINUX_MTD_JEDEC_H__ |
@@ -33,16 +33,16 @@ struct jedec_flash_chip | |||
33 | __u16 jedec; | 33 | __u16 jedec; |
34 | unsigned long size; | 34 | unsigned long size; |
35 | unsigned long sectorsize; | 35 | unsigned long sectorsize; |
36 | 36 | ||
37 | // *(__u8*)(base + (adder << addrshift)) = data << datashift | 37 | // *(__u8*)(base + (adder << addrshift)) = data << datashift |
38 | // Address size = size << addrshift | 38 | // Address size = size << addrshift |
39 | unsigned long base; // Byte 0 of the flash, will be unaligned | 39 | unsigned long base; // Byte 0 of the flash, will be unaligned |
40 | unsigned int datashift; // Useful for 32bit/16bit accesses | 40 | unsigned int datashift; // Useful for 32bit/16bit accesses |
41 | unsigned int addrshift; | 41 | unsigned int addrshift; |
42 | unsigned long offset; // linerized start. base==offset for unbanked, uninterleaved flash | 42 | unsigned long offset; // linerized start. base==offset for unbanked, uninterleaved flash |
43 | 43 | ||
44 | __u32 capabilities; | 44 | __u32 capabilities; |
45 | 45 | ||
46 | // These markers are filled in by the flash_chip_scan function | 46 | // These markers are filled in by the flash_chip_scan function |
47 | unsigned long start; | 47 | unsigned long start; |
48 | unsigned long length; | 48 | unsigned long length; |
@@ -51,16 +51,16 @@ struct jedec_flash_chip | |||
51 | struct jedec_private | 51 | struct jedec_private |
52 | { | 52 | { |
53 | unsigned long size; // Total size of all the devices | 53 | unsigned long size; // Total size of all the devices |
54 | 54 | ||
55 | /* Bank handling. If sum(bank_fill) == size then this is linear flash. | 55 | /* Bank handling. If sum(bank_fill) == size then this is linear flash. |
56 | Otherwise the mapping has holes in it. bank_fill may be used to | 56 | Otherwise the mapping has holes in it. bank_fill may be used to |
57 | find the holes, but in the common symetric case | 57 | find the holes, but in the common symetric case |
58 | bank_fill[0] == bank_fill[*], thus addresses may be computed | 58 | bank_fill[0] == bank_fill[*], thus addresses may be computed |
59 | mathmatically. bank_fill must be powers of two */ | 59 | mathmatically. bank_fill must be powers of two */ |
60 | unsigned is_banked; | 60 | unsigned is_banked; |
61 | unsigned long bank_fill[MAX_JEDEC_CHIPS]; | 61 | unsigned long bank_fill[MAX_JEDEC_CHIPS]; |
62 | 62 | ||
63 | struct jedec_flash_chip chips[MAX_JEDEC_CHIPS]; | 63 | struct jedec_flash_chip chips[MAX_JEDEC_CHIPS]; |
64 | }; | 64 | }; |
65 | 65 | ||
66 | #endif | 66 | #endif |