From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from dell-paw-3.cambridge.redhat.com ([195.224.55.237] helo=passion.cambridge.redhat.com) by pentafluge.infradead.org with esmtp (Exim 3.22 #1 (Red Hat Linux)) id 16msTS-0001tz-00 for ; Mon, 18 Mar 2002 08:26:34 +0000 From: David Woodhouse In-Reply-To: <20020318074250.DA1EA36F9@sitemail.everyone.net> References: <20020318074250.DA1EA36F9@sitemail.everyone.net> To: zeusj@firstlinux.net Cc: all in MTD mailinglist Subject: Re: (no subject) Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Date: Mon, 18 Mar 2002 08:38:01 +0000 Message-ID: <8925.1016440681@redhat.com> Sender: linux-mtd-admin@lists.infradead.org Errors-To: linux-mtd-admin@lists.infradead.org List-Help: List-Post: List-Subscribe: , List-Id: Linux MTD discussion mailing list List-Unsubscribe: , List-Archive: zeusj@firstlinux.net said: > since I am not familiar to the intel strata flash 28f128, I thought > you have a set_vpp() method for it and it can be transmitted to me for > my file. I think I misunderstood what you mean :) but... I check all > the doc I can find but they are all about the hardware:(so many > pins...) ,do u have a set_vpp() method for 28f128? If it does, can u > show me? Vpp is the programming voltage pin of the flash chip. You have to put a high voltage on this pin to allow programming - otherwise the chip will be in read only mode. Newer chips don't need such high voltages any more, but still have a Vpen (program enable) line which has much the same effect. If the Vpen line to your flash chips isn't just hardwired to be on, then it'll be controlled by a GPIO pin somewhere. That would be board-specific. -- dwmw2