mtd: m25p80 timeout too short for worst-case m25p16 devices

Linux-MTD Mailing List linux-mtd at lists.infradead.org
Fri Jun 26 13:59:02 EDT 2009


Gitweb:     http://git.infradead.org/?p=mtd-2.6.git;a=commit;h=89bb871e96cdc3d78b7f69f0bacc94b21bbaccfd
Commit:     89bb871e96cdc3d78b7f69f0bacc94b21bbaccfd
Parent:     ae27a7ab2c74f9c075e03730c5f493163d048c62
Author:     Steven A. Falco <sfalco at harris.com>
AuthorDate: Fri Jun 26 12:42:47 2009 -0400
Committer:  David Woodhouse <David.Woodhouse at intel.com>
CommitDate: Fri Jun 26 18:15:21 2009 +0100

    mtd: m25p80 timeout too short for worst-case m25p16 devices
    
    The m25p16 data sheet from numonyx lists the worst-case bulk erase time
    (tBE) as 40 seconds.
    
    Signed-off-by: Steven A. Falco <sfalco at harris.com>
    Signed-off-by: David Woodhouse <David.Woodhouse at intel.com>
---
 drivers/mtd/devices/m25p80.c |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)

diff --git a/drivers/mtd/devices/m25p80.c b/drivers/mtd/devices/m25p80.c
index 59c4612..ae5fe91 100644
--- a/drivers/mtd/devices/m25p80.c
+++ b/drivers/mtd/devices/m25p80.c
@@ -54,7 +54,7 @@
 #define	SR_SRWD			0x80	/* SR write protect */
 
 /* Define max times to check status register before we give up. */
-#define	MAX_READY_WAIT_JIFFIES	(10 * HZ)	/* eg. M25P128 specs 6s max sector erase */
+#define	MAX_READY_WAIT_JIFFIES	(40 * HZ)	/* M25P16 specs 40s max chip erase */
 #define	CMD_SIZE		4
 
 #ifdef CONFIG_M25PXX_USE_FAST_READ



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