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[MTD] Fix MTD device probing 

Try larger numbers of chips before smaller
numbers of chips across the bus width.

This means we'll avoid misdetecting a 2 x16 array as 1 x32 if the
high 16-bits happen to read as zeros in the QRY area.

Signed-off-by: Russell King <linux@arm.linux.org.uk>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
This commit is contained in:
Russell King 2005-01-24 23:49:54 +00:00 committed by Thomas Gleixner
parent 3118db3dfe
commit 6170b43401
1 changed files with 2 additions and 2 deletions
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4
drivers/mtd/chips/gen_probe.c
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@ -2,7 +2,7 @@
* Routines common to all CFI-type probes.
* (C) 2001-2003 Red Hat, Inc.
* GPL'd
* $Id: gen_probe.c,v 1.21 2004/08/14 15:14:05 dwmw2 Exp $
* $Id: gen_probe.c,v 1.22 2005/01/24 23:49:50 rmk Exp $
*/
#include <linux/kernel.h>
@ -162,7 +162,7 @@ static int genprobe_new_chip(struct map_info *map, struct chip_probe *cp,
int max_chips = map_bankwidth(map); /* And minimum 1 */
int nr_chips, type;
for (nr_chips = min_chips; nr_chips <= max_chips; nr_chips <<= 1) {
for (nr_chips = max_chips; nr_chips >= min_chips; nr_chips >>= 1) {
if (!cfi_interleave_supported(nr_chips))
continue;