From: Guillaume LECERF Date: Tue, 26 Oct 2010 09:26:26 +0000 (+0100) Subject: mtd: cfi_util: add support for switching SST 39VF640xB chips into QRY mode X-Git-Tag: v2.6.37-rc1~22^2~7 X-Git-Url: https://openfabrics.org/gitweb/?a=commitdiff_plain;h=fc61015f72808f2fd83657909d02f4d29404b8c6;p=~shefty%2Frdma-dev.git mtd: cfi_util: add support for switching SST 39VF640xB chips into QRY mode Signed-off-by: Guillaume LECERF Signed-off-by: David Woodhouse --- diff --git a/drivers/mtd/chips/cfi_util.c b/drivers/mtd/chips/cfi_util.c index e503b2ca894..360525c637d 100644 --- a/drivers/mtd/chips/cfi_util.c +++ b/drivers/mtd/chips/cfi_util.c @@ -75,6 +75,13 @@ int __xipram cfi_qry_mode_on(uint32_t base, struct map_info *map, cfi_send_gen_cmd(0xAA, 0x5555, base, map, cfi, cfi->device_type, NULL); cfi_send_gen_cmd(0x55, 0x2AAA, base, map, cfi, cfi->device_type, NULL); 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 */