From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from wproxy.gmail.com ([64.233.184.196]) by canuck.infradead.org with esmtp (Exim 4.42 #1 (Red Hat Linux)) id 1CjLOp-0004u2-Hv for linux-mtd@lists.infradead.org; Tue, 28 Dec 2004 12:44:48 -0500 Received: by wproxy.gmail.com with SMTP id 37so413235wra for ; Tue, 28 Dec 2004 09:44:46 -0800 (PST) Message-ID: <6934efce041228094447dbfbd1@mail.gmail.com> Date: Tue, 28 Dec 2004 09:44:45 -0800 From: Jared Hulbert To: llandre In-Reply-To: <6.0.1.1.0.20041228094614.01ec9ff8@192.168.2.1> Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit References: <6.0.1.1.0.20041227121334.01ec55d8@192.168.2.1> <6934efce04122709464e95ec21@mail.gmail.com> <6.0.1.1.0.20041228094614.01ec9ff8@192.168.2.1> Cc: linux-mtd@lists.infradead.org Subject: Re: How to exploit STS pin of Strata Flash Reply-To: Jared Hulbert List-Id: Linux MTD discussion mailing list List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , > To avoid the bus accesses to detect the end of erase/write operations. > This wastes a lot of bus bandwidth. I believe the current StrataFlash drivers actually sleep() for an appropriate amount of time in both the write and erase routines. I'm not sure that they are actually going to be wasting that much useful bus time. I'm curious to know if you have any data to suggest this bus usage has any significant impact on system performance. > >How? Connect it to a irq line? > > Is this supported by MTD? How to enable this feature in the low-level driver? > I had a look at the existing drivers but it neems no one uses interrupt ... No. I was just curious what you were thinking of. It could be done. If you really think its worth it. ,Jared