From: Guillaume LECERF <glecerf@gmail.com>
To: linux-mtd@lists.infradead.org
Cc: fggs@terra.com.br, zhangyd6@gmail.com, w.sang@pengutronix.de,
David.Woodhouse@intel.com
Subject: [PATCH 2 1/3] mtd: cfi_util: add support for switching SST 39VF640xB chips into QRY mode
Date: Tue, 26 Oct 2010 11:26:26 +0200 [thread overview]
Message-ID: <20101026092626.5790.91523.stgit@dev.siriade.com> (raw)
Signed-off-by: Guillaume LECERF <glecerf@gmail.com>
---
drivers/mtd/chips/cfi_util.c | 7 +++++++
1 files changed, 7 insertions(+), 0 deletions(-)
diff --git a/drivers/mtd/chips/cfi_util.c b/drivers/mtd/chips/cfi_util.c
index e503b2c..360525c 100644
--- a/drivers/mtd/chips/cfi_util.c
+++ b/drivers/mtd/chips/cfi_util.c
@@ -77,6 +77,13 @@ int __xipram cfi_qry_mode_on(uint32_t base, struct map_info *map,
cfi_send_gen_cmd(0x98, 0x5555, base, map, cfi, cfi->device_type, NULL);
if (cfi_qry_present(map, base, cfi))
return 1;
+ /* SST 39VF640xB */
+ cfi_send_gen_cmd(0xF0, 0, base, map, cfi, cfi->device_type, NULL);
+ cfi_send_gen_cmd(0xAA, 0x555, base, map, cfi, cfi->device_type, NULL);
+ cfi_send_gen_cmd(0x55, 0x2AA, base, map, cfi, cfi->device_type, NULL);
+ cfi_send_gen_cmd(0x98, 0x555, base, map, cfi, cfi->device_type, NULL);
+ if (cfi_qry_present(map, base, cfi))
+ return 1;
/* QRY not found */
return 0;
}
next reply other threads:[~2010-10-26 9:27 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-10-26 9:26 Guillaume LECERF [this message]
2010-10-26 9:26 ` [PATCH 2 2/3] mtd: cfi_cmdset_0002: add CFI detection for SST 38VF640x chips Guillaume LECERF
2010-10-26 10:25 ` Wolfram Sang
2010-10-26 10:29 ` David Woodhouse
2010-10-26 9:26 ` [PATCH 2 3/3] mtd: cfi_cmdset_0002: make sector erase command variable Guillaume LECERF
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