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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 1/4] mtd: cfi_util: add support for switching SST 39VF640xB chips into QRY mode
Date: Fri, 22 Oct 2010 17:40:15 +0200	[thread overview]
Message-ID: <20101022154015.11097.94660.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;
 }

             reply	other threads:[~2010-10-22 15:41 UTC|newest]

Thread overview: 12+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2010-10-22 15:40 Guillaume LECERF [this message]
2010-10-22 15:40 ` [PATCH 2/4] mtd: cfi_cmdset_0002: make sector erase command variable Guillaume LECERF
2010-10-23 10:24   ` Wolfram Sang
2010-10-25  8:11     ` Guillaume LECERF
2010-10-26  8:34     ` Guillaume LECERF
2010-10-22 15:40 ` [PATCH 3/4] mtd: cfi_cmdset_0002: use 0x50 erase command for SST 39VFxxxxB chips Guillaume LECERF
2010-10-22 15:40 ` [PATCH 4/4] mtd: cfi_cmdset_0002: add CFI detection for SST 38VF640x chips Guillaume LECERF
2010-10-25  1:18   ` yidong zhang
2010-10-25  8:09     ` Guillaume LECERF
2010-10-25  8:38       ` yidong zhang
2010-10-25  9:17         ` Guillaume LECERF
2010-10-25 10:01           ` yidong zhang

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