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Description of problem:
If a map driver uses jedec_probe to detect a flash (e.g. ST M50FW080), then erase and write operations on this flash breaks by timeout.
The following patch helps to fix the problem:

diff --git a/drivers/mtd/chips/cfi_cmdset_0001.c b/drivers/mtd/chips/cfi_cmdset_0001.c
index f69184a..fed9d5b 100644
--- a/drivers/mtd/chips/cfi_cmdset_0001.c
+++ b/drivers/mtd/chips/cfi_cmdset_0001.c
@@ -402,6 +402,12 @@ struct mtd_info *cfi_cmdset_0001(struct map_info *map, int primary)
                cfi->chips[i].erase_time = 1000<<cfi->cfiq-BlockEraseTimeoutTyp;
                cfi->chips[i].ref_point_counter = 0;
                init_waitqueue_head(&(cfi->chips[i].wq));
+
+               /* If no times specified, put some reasonable defaults in */
+               if (!cfi->chips[i].WordWriteTimeoutTyp)
+                       cfi->chips[i].word_write_time = 100;
+               if (!cfi->chips[i].BlockEraseTimeoutTyp)
+                       cfi->chips[i].erase_time = 2000000;
        }

        map->fldrv = &cfi_intelext_chipdrv;


Version-Release number of selected component (if applicable):
kernel 2.6.18-1.2747.el5

How reproducible:
Always


Steps to Reproduce:
1. Load Motorola atca7221 map driver
2. Try to erase flash on /dev/mtd0 or /dev/mtd1
3. See 'Timeout expired' messages
(Contact David Woodhouse dwmw2 for more details)

Actual Results:


Expected Results:


Additional info: