diff options
author | Ingo Molnar <mingo@elte.hu> | 2008-11-11 09:40:18 +0100 |
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committer | Ingo Molnar <mingo@elte.hu> | 2008-11-11 09:40:18 +0100 |
commit | e0cb4ebcd9e5b4ddd8216c20f54445c91b1fa4b9 (patch) | |
tree | d1c3b22b7e9f02fb56927da530da09c6ee7ce0b9 /include/linux/mtd/cfi.h | |
parent | a309720c876d7ad2e224bfd1982c92ae4364c82e (diff) | |
parent | 45b86a96f17cb2900f291129b0e67287400e45b2 (diff) |
Merge branch 'tracing/urgent' into tracing/ftrace
Conflicts:
kernel/trace/trace.c
Diffstat (limited to 'include/linux/mtd/cfi.h')
-rw-r--r-- | include/linux/mtd/cfi.h | 22 |
1 files changed, 19 insertions, 3 deletions
diff --git a/include/linux/mtd/cfi.h b/include/linux/mtd/cfi.h index ee5124ec319..00e2b575021 100644 --- a/include/linux/mtd/cfi.h +++ b/include/linux/mtd/cfi.h @@ -282,9 +282,25 @@ struct cfi_private { /* * Returns the command address according to the given geometry. */ -static inline uint32_t cfi_build_cmd_addr(uint32_t cmd_ofs, int interleave, int type) +static inline uint32_t cfi_build_cmd_addr(uint32_t cmd_ofs, + struct map_info *map, struct cfi_private *cfi) { - return (cmd_ofs * type) * interleave; + unsigned bankwidth = map_bankwidth(map); + unsigned interleave = cfi_interleave(cfi); + unsigned type = cfi->device_type; + uint32_t addr; + + addr = (cmd_ofs * type) * interleave; + + /* Modify the unlock address if we are in compatiblity mode. + * For 16bit devices on 8 bit busses + * and 32bit devices on 16 bit busses + * set the low bit of the alternating bit sequence of the address. + */ + if (((type * interleave) > bankwidth) && ((uint8_t)cmd_ofs == 0xaa)) + addr |= (type >> 1)*interleave; + + return addr; } /* @@ -430,7 +446,7 @@ static inline uint32_t cfi_send_gen_cmd(u_char cmd, uint32_t cmd_addr, uint32_t int type, map_word *prev_val) { map_word val; - uint32_t addr = base + cfi_build_cmd_addr(cmd_addr, cfi_interleave(cfi), type); + uint32_t addr = base + cfi_build_cmd_addr(cmd_addr, map, cfi); val = cfi_build_cmd(cmd, map, cfi); if (prev_val) |