mtd: m25p80: Fix the Spansion chip detection

Linux-MTD Mailing List linux-mtd at lists.infradead.org
Sat Sep 29 10:59:02 EDT 2012


Gitweb:     http://git.infradead.org/?p=mtd-2.6.git;a=commit;h=8bb8b85f6732ed579222a465d0749f66a3cace4d
Commit:     8bb8b85f6732ed579222a465d0749f66a3cace4d
Parent:     f728598f8d8edd6df2b53665ddadaf18401e5b11
Author:     Marek Vasut <marex at denx.de>
AuthorDate: Fri Jul 6 08:10:26 2012 +0200
Committer:  David Woodhouse <David.Woodhouse at intel.com>
CommitDate: Sat Sep 29 14:50:22 2012 +0100

    mtd: m25p80: Fix the Spansion chip detection
    
    Due to the implementation of the following loop at the end
    of jedec_probe():
    
    776         for (tmp = 0; tmp < ARRAY_SIZE(m25p_ids) - 1; tmp++) {
    777                 info = (void *)m25p_ids[tmp].driver_data;
    778                 if (info->jedec_id == jedec) {
    779                         if (info->ext_id != 0 && info->ext_id != ext_jedec)
    780                                 continue;
    781                         return &m25p_ids[tmp];
    782                 }
    783         }
    
    In particular line 779 in the above numbering, the chips with ext_id != 0 must
    be ordered first in the list of chips (m25p_ids[]).
    
    Signed-off-by: Marek Vasut <marex at denx.de>
    Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy at linux.intel.com>
    Signed-off-by: David Woodhouse <David.Woodhouse at intel.com>
---
 drivers/mtd/devices/m25p80.c |   10 +++++-----
 1 files changed, 5 insertions(+), 5 deletions(-)

diff --git a/drivers/mtd/devices/m25p80.c b/drivers/mtd/devices/m25p80.c
index a3f4832..d16f75c 100644
--- a/drivers/mtd/devices/m25p80.c
+++ b/drivers/mtd/devices/m25p80.c
@@ -665,12 +665,7 @@ static const struct spi_device_id m25p_ids[] = {
 	/* Spansion -- single (large) sector size only, at least
 	 * for the chips listed here (without boot sectors).
 	 */
-	{ "s25sl004a",  INFO(0x010212,      0,  64 * 1024,   8, 0) },
-	{ "s25sl008a",  INFO(0x010213,      0,  64 * 1024,  16, 0) },
-	{ "s25sl016a",  INFO(0x010214,      0,  64 * 1024,  32, 0) },
-	{ "s25sl032a",  INFO(0x010215,      0,  64 * 1024,  64, 0) },
 	{ "s25sl032p",  INFO(0x010215, 0x4d00,  64 * 1024,  64, SECT_4K) },
-	{ "s25sl064a",  INFO(0x010216,      0,  64 * 1024, 128, 0) },
 	{ "s25sl064p",  INFO(0x010216, 0x4d00,  64 * 1024, 128, SECT_4K) },
 	{ "s25fl256s0", INFO(0x010219, 0x4d00, 256 * 1024, 128, 0) },
 	{ "s25fl256s1", INFO(0x010219, 0x4d01,  64 * 1024, 512, 0) },
@@ -680,6 +675,11 @@ static const struct spi_device_id m25p_ids[] = {
 	{ "s25sl12801", INFO(0x012018, 0x0301,  64 * 1024, 256, 0) },
 	{ "s25fl129p0", INFO(0x012018, 0x4d00, 256 * 1024,  64, 0) },
 	{ "s25fl129p1", INFO(0x012018, 0x4d01,  64 * 1024, 256, 0) },
+	{ "s25sl004a",  INFO(0x010212,      0,  64 * 1024,   8, 0) },
+	{ "s25sl008a",  INFO(0x010213,      0,  64 * 1024,  16, 0) },
+	{ "s25sl016a",  INFO(0x010214,      0,  64 * 1024,  32, 0) },
+	{ "s25sl032a",  INFO(0x010215,      0,  64 * 1024,  64, 0) },
+	{ "s25sl064a",  INFO(0x010216,      0,  64 * 1024, 128, 0) },
 	{ "s25fl016k",  INFO(0xef4015,      0,  64 * 1024,  32, SECT_4K) },
 	{ "s25fl064k",  INFO(0xef4017,      0,  64 * 1024, 128, SECT_4K) },
 



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