From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mailout4.samsung.com ([203.254.224.34]) by canuck.infradead.org with esmtp (Exim 4.72 #1 (Red Hat Linux)) id 1PPOa7-0006jK-Cc for linux-mtd@lists.infradead.org; Mon, 06 Dec 2010 00:05:28 +0000 Received: from epmmp2 (mailout4.samsung.com [203.254.224.34]) by mailout4.samsung.com (Oracle Communications Messaging Exchange Server 7u4-19.01 64bit (built Sep 7 2010)) with ESMTP id <0LCZ001NXC8Y6W60@mailout4.samsung.com> for linux-mtd@lists.infradead.org; Mon, 06 Dec 2010 09:05:22 +0900 (KST) Received: from TNRNDGASPAPP1.tn.corp.samsungelectronics.net ([165.213.149.150]) by mmp2.samsung.com (iPlanet Messaging Server 5.2 Patch 2 (built Jul 14 2004)) with ESMTPA id <0LCZ00KOEC8Y92@mmp2.samsung.com> for linux-mtd@lists.infradead.org; Mon, 06 Dec 2010 09:05:22 +0900 (KST) Date: Mon, 06 Dec 2010 09:05:18 +0900 From: Kyungmin Park Subject: [PATCH] mtd: OneNAND: Fix multi block erase support at 4KiB pagesize To: linux-mtd@lists.infradead.org Message-id: <20101206000518.GA18352@july> MIME-version: 1.0 Content-type: text/plain; charset=us-ascii Content-transfer-encoding: 7BIT Content-disposition: inline Cc: dwmw2@infradead.org, dedekind1@gmail.com List-Id: Linux MTD discussion mailing list List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , From: Kyungmin Park Original 4KiB pagesize chip (SLC) doesn't support Multi block erase at Spec. Signed-off-by: Kyungmin Park --- diff --git a/drivers/mtd/onenand/onenand_base.c b/drivers/mtd/onenand/onenand_base.c index c38bf9c..88f23e3 100644 --- a/drivers/mtd/onenand/onenand_base.c +++ b/drivers/mtd/onenand/onenand_base.c @@ -2492,7 +2492,8 @@ static int onenand_erase(struct mtd_info *mtd, struct erase_info *instr) /* Grab the lock and see if the device is available */ onenand_get_device(mtd, FL_ERASING); - if (region || instr->len < MB_ERASE_MIN_BLK_COUNT * block_size) { + if (ONENAND_IS_4KB_PAGE(this) || region || + instr->len < MB_ERASE_MIN_BLK_COUNT * block_size) { /* region is set for Flex-OneNAND (no mb erase) */ ret = onenand_block_by_block_erase(mtd, instr, region, block_size);