From mboxrd@z Thu Jan 1 00:00:00 1970 Message-ID: <49FFF86F.2070402@nokia.com> Date: Tue, 05 May 2009 11:27:27 +0300 From: Adrian Hunter MIME-Version: 1.0 To: David Woodhouse Subject: [PATCH] MTD: OneNAND: Add support for OneNAND manufactured by Numonyx Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Cc: linux-mtd Mailing List , Kyungmin Park , Kyungmin Park List-Id: Linux MTD discussion mailing list List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , >>From e400da3456896505edbf7c39a14668c2c718ace4 Mon Sep 17 00:00:00 2001 From: Adrian Hunter Date: Tue, 5 May 2009 11:04:19 +0300 Subject: [PATCH] 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 --- drivers/mtd/onenand/onenand_base.c | 3 ++- include/linux/mtd/onenand.h | 1 + 2 files changed, 3 insertions(+), 1 deletions(-) diff --git a/drivers/mtd/onenand/onenand_base.c b/drivers/mtd/onenand/onenand_base.c index 524af9a..f6cfadb 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); diff --git a/include/linux/mtd/onenand.h b/include/linux/mtd/onenand.h index 9aa2a91..0fa3ac4 100644 --- a/include/linux/mtd/onenand.h +++ b/include/linux/mtd/onenand.h @@ -176,6 +176,7 @@ struct onenand_chip { * OneNAND Flash Manufacturer ID Codes */ #define ONENAND_MFR_SAMSUNG 0xec +#define ONENAND_MFR_NUMONYX 0x20 /** * struct onenand_manufacturers - NAND Flash Manufacturer ID Structure -- 1.5.6.3