From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from am1ehsobe005.messaging.microsoft.com ([213.199.154.208] helo=am1outboundpool.messaging.microsoft.com) by merlin.infradead.org with esmtps (Exim 4.76 #1 (Red Hat Linux)) id 1Tw6xK-0007O8-G3 for linux-mtd@lists.infradead.org; Fri, 18 Jan 2013 08:05:43 +0000 Message-ID: <50F9023D.5040408@freescale.com> Date: Fri, 18 Jan 2013 16:05:17 +0800 From: Huang Shijie MIME-Version: 1.0 To: Artem Bityutskiy , "linux-mtd@lists.infradead.org" , David Woodhouse Subject: question: Why the nand_wait() wait for 20ms for nand program. Content-Type: text/plain; charset="GB2312" Content-Transfer-Encoding: 7bit List-Id: Linux MTD discussion mailing list List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Hi all: Why the nand_wait() wait for 20ms for nand program. could we expand this time to 40ms? I have a nand chip : Micron MT29F64G08CBABAWP. The chip's BUSY/READY pin may needs more then 20ms to become ready, though its datasheet tells me the tPROG's max value is 2.5ms. thanks Huang Shijie