Patchwork m25p80 timeout too short for worst-case m25p16 devices

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Submitter Steven A. Falco
Date June 26, 2009, 4:42 p.m.
Message ID <4A44FA87.8030807@harris.com>
Download mbox | patch
Permalink /patch/29199/
State Accepted
Commit 89bb871e96cdc3d78b7f69f0bacc94b21bbaccfd
Headers show

Comments

Steven A. Falco - June 26, 2009, 4:42 p.m.
The m25p16 data sheet from numonyx lists the worst-case bulk erase time
(tBE) as 40 seconds.

Signed-off-by: Steven A. Falco <sfalco@harris.com>
---

Patch

diff --git a/drivers/mtd/devices/m25p80.c b/drivers/mtd/devices/m25p80.c
index cc6369e..e106700 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