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authorAdrian Hunter <adrian.hunter@nokia.com>2009-05-05 11:04:19 +0300
committerDavid Woodhouse <David.Woodhouse@intel.com>2009-06-05 17:49:25 +0100
commitee8f37688966ab1438d0cf42e0cb7c6595d9592c (patch)
tree6607008d4b764c930114fc83066faa3f0de3c986 /drivers
parent1e42d142e65ebdef38fb399b421d04e092ad1c6e (diff)
mtd: OneNAND: add support for OneNAND manufactured by Numonyx
In addition to adding the Numonyx manufacturer code, this patch also ensures 'sync. write' is disabled when reading identification data - something that the Numonyx chip objects to, but the Samsung chip seems to ignore. Signed-off-by: Adrian Hunter <adrian.hunter@nokia.com> Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com> Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
Diffstat (limited to 'drivers')
-rw-r--r--drivers/mtd/onenand/onenand_base.c3
1 files changed, 2 insertions, 1 deletions
diff --git a/drivers/mtd/onenand/onenand_base.c b/drivers/mtd/onenand/onenand_base.c
index 30d6999e5f9..2346857a275 100644
--- a/drivers/mtd/onenand/onenand_base.c
+++ b/drivers/mtd/onenand/onenand_base.c
@@ -2576,6 +2576,7 @@ static void onenand_print_device_info(int device, int version)
static const struct onenand_manufacturers onenand_manuf_ids[] = {
{ONENAND_MFR_SAMSUNG, "Samsung"},
+ {ONENAND_MFR_NUMONYX, "Numonyx"},
};
/**
@@ -2621,7 +2622,7 @@ static int onenand_probe(struct mtd_info *mtd)
/* Save system configuration 1 */
syscfg = this->read_word(this->base + ONENAND_REG_SYS_CFG1);
/* Clear Sync. Burst Read mode to read BootRAM */
- this->write_word((syscfg & ~ONENAND_SYS_CFG1_SYNC_READ), this->base + ONENAND_REG_SYS_CFG1);
+ this->write_word((syscfg & ~ONENAND_SYS_CFG1_SYNC_READ & ~ONENAND_SYS_CFG1_SYNC_WRITE), this->base + ONENAND_REG_SYS_CFG1);
/* Send the command for reading device ID from BootRAM */
this->write_word(ONENAND_CMD_READID, this->base + ONENAND_BOOTRAM);