Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1756665AbZCCGgv (ORCPT ); Tue, 3 Mar 2009 01:36:51 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1752182AbZCCGgm (ORCPT ); Tue, 3 Mar 2009 01:36:42 -0500 Received: from mailout5.samsung.com ([203.254.224.35]:51269 "EHLO mailout5.samsung.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751814AbZCCGgl (ORCPT ); Tue, 3 Mar 2009 01:36:41 -0500 Date: Tue, 03 Mar 2009 15:36:31 +0900 From: Kyungmin Park Subject: [PATCH 3/3] [MTD] [OneNAND] Add bbt_wait & unlock_all as replaceable for some platform To: linux-mtd@lists.infradead.org, linux-kernel@vger.kernel.org Message-id: <20090303063631.GA30269@july> MIME-version: 1.0 Content-type: text/plain; charset=us-ascii Content-transfer-encoding: 7BIT Content-disposition: inline User-Agent: Mutt/1.5.14 (2007-02-12) X-OriginalArrivalTime: 03 Mar 2009 06:36:37.0519 (UTC) FILETIME=[674739F0:01C99BCA] Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 3495 Lines: 91 Add bbt_wait & unlock_all as replaceable for some platform such as s3c64xx s3c64xx has its own OneNAND controller and another interface Signed-off-by: Kyungmin Park --- drivers/mtd/onenand/onenand_base.c | 12 ++++++++++-- include/linux/mtd/onenand.h | 5 +++++ 2 files changed, 15 insertions(+), 2 deletions(-) diff --git a/drivers/mtd/onenand/onenand_base.c b/drivers/mtd/onenand/onenand_base.c index 7af863a..565599b 100644 --- a/drivers/mtd/onenand/onenand_base.c +++ b/drivers/mtd/onenand/onenand_base.c @@ -1511,7 +1511,7 @@ int onenand_bbt_read_oob(struct mtd_info *mtd, loff_t from, onenand_update_bufferram(mtd, from, 0); - ret = onenand_bbt_wait(mtd, FL_READING); + ret = this->bbt_wait(mtd, FL_READING); if (unlikely(ret)) ret = onenand_recover_lsb(mtd, from, ret); @@ -2532,6 +2532,10 @@ static void onenand_unlock_all(struct mtd_info *mtd) & ONENAND_CTRL_ONGO) continue; + /* Don't check lock status */ + if (this->options & ONENAND_SKIP_UNLOCK_CHECK) + return; + /* Check lock status */ if (onenand_check_lock_status(this)) return; @@ -3407,6 +3411,10 @@ int onenand_scan(struct mtd_info *mtd, int maxchips) this->command = onenand_command; if (!this->wait) onenand_setup_wait(mtd); + if (!this->bbt_wait) + this->bbt_wait = onenand_bbt_wait; + if (!this->unlock_all) + this->unlock_all = onenand_unlock_all; if (!this->read_bufferram) this->read_bufferram = onenand_read_bufferram; @@ -3524,7 +3532,7 @@ int onenand_scan(struct mtd_info *mtd, int maxchips) mtd->owner = THIS_MODULE; /* Unlock whole block */ - onenand_unlock_all(mtd); + this->unlock_all(mtd); ret = this->scan_bbt(mtd); if ((!FLEXONENAND(this)) || ret) diff --git a/include/linux/mtd/onenand.h b/include/linux/mtd/onenand.h index 1ce6c39..c3aed89 100644 --- a/include/linux/mtd/onenand.h +++ b/include/linux/mtd/onenand.h @@ -97,6 +97,8 @@ struct onenand_bufferram { * @command: [REPLACEABLE] hardware specific function for writing * commands to the chip * @wait: [REPLACEABLE] hardware specific function for wait on ready + * @bbt_wait: [REPLACEABLE] hardware specific function for bbt wait on ready + * @unlock_all: [REPLACEABLE] hardware specific function for unlock all * @read_bufferram: [REPLACEABLE] hardware specific function for BufferRAM Area * @write_bufferram: [REPLACEABLE] hardware specific function for BufferRAM Area * @read_word: [REPLACEABLE] hardware specific function for read @@ -141,6 +143,8 @@ struct onenand_chip { int (*command)(struct mtd_info *mtd, int cmd, loff_t address, size_t len); int (*wait)(struct mtd_info *mtd, int state); + int (*bbt_wait)(struct mtd_info *mtd, int state); + void (*unlock_all)(struct mtd_info *mtd); int (*read_bufferram)(struct mtd_info *mtd, int area, unsigned char *buffer, int offset, size_t count); int (*write_bufferram)(struct mtd_info *mtd, int area, @@ -207,6 +211,7 @@ struct onenand_chip { #define ONENAND_HAS_CONT_LOCK (0x0001) #define ONENAND_HAS_UNLOCK_ALL (0x0002) #define ONENAND_HAS_2PLANE (0x0004) +#define ONENAND_SKIP_UNLOCK_CHECK (0x0100) #define ONENAND_PAGEBUF_ALLOC (0x1000) #define ONENAND_OOBBUF_ALLOC (0x2000) -- 1.5.3.3 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/