From saquib.herman@gmail.com Tue Mar 09 09:29:53 2010 Received: from mail-qy0-f192.google.com ([209.85.221.192]) by stoneboat.aleph1.co.uk with esmtp (Exim 4.69) (envelope-from ) id 1Novl5-00058w-Ob for yaffs@lists.aleph1.co.uk; Tue, 09 Mar 2010 09:29:52 +0000 Received: by qyk30 with SMTP id 30so6606703qyk.16 for ; Tue, 09 Mar 2010 01:29:42 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=gamma; h=domainkey-signature:mime-version:received:date:message-id:subject :from:to:content-type; bh=9SOEdWhQvyiWxzXBte9hY4YYglIRvauUlIx2/kag7Pg=; b=YoMb+vxkGp/TzGZOi2E2f0aGCnZSzoNin4Beyie7YbFNQn9Z+tJBPtDv9BePUSCzMc 2+HQsS6dl3i9tkSlNJC0ehXqpZxten6cV6EjABaUDbTfGkjOAfI2EhcgjR5uZAOKZQDM I/0WQO0nmvxpTJ2Gp+vJyOCgIgtvRDYR+NdyI= DomainKey-Signature: a=rsa-sha1; c=nofws; d=gmail.com; s=gamma; h=mime-version:date:message-id:subject:from:to:content-type; b=fQsu+UULFTOXD32uuI5mSa9BW/qaAz5yoJT1SIlq0r/Qf8jWITFpEKBiBObLGngQKD oWxo+OyUZCTvFJ8jSzo8iv8Qh6V/mPKZ4RSjklUFhXWfuojKetDd5L+wA+qCDCqFoLTW tSwAM3nEhUe2msVATCkTqvcCCI13u3x+TdP+M= MIME-Version: 1.0 Received: by 10.224.30.82 with SMTP id t18mr202129qac.355.1268126981953; Tue, 09 Mar 2010 01:29:41 -0800 (PST) Date: Tue, 9 Mar 2010 14:59:41 +0530 Message-ID: From: Saquib To: yaffs@lists.aleph1.co.uk Content-Type: multipart/alternative; boundary=000feaef43ba4a1d7804815ad214 X-SA-Exim-Connect-IP: 209.85.221.192 X-SA-Exim-Mail-From: saquib.herman@gmail.com X-Spam-Checker-Version: SpamAssassin 3.2.5 (2008-06-10) on stoneboat.aleph1.co.uk X-Spam-Level: X-Spam-Status: No, score=-2.6 required=4.5 tests=AWL,BAYES_00,HTML_MESSAGE, SPF_PASS autolearn=no version=3.2.5 X-SA-Exim-Version: 4.2.1 (built Wed, 25 Jun 2008 17:14:11 +0000) X-SA-Exim-Scanned: Yes (on stoneboat.aleph1.co.uk) Subject: [Yaffs] [YAFFS2] : some basic queries on YAFFS2 X-BeenThere: yaffs@lists.aleph1.co.uk X-Mailman-Version: 2.1.11 Precedence: list List-Id: Discussion of YAFFS NAND flash filesystem List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 09 Mar 2010 09:29:53 -0000 --000feaef43ba4a1d7804815ad214 Content-Type: text/plain; charset=ISO-8859-1 Hi All, I have some queries on YAFFS2 usage. (1) *YAFFS2 Direct Interface* : What is the use of this interface? Is it mandatory when I use YAFFS2? (2) *Garbage Collection and Wear-Levelling*: How do I test these things are working? (3) *4K Page Size* : This chip supports 4K page size. Is there any changes required in YAFFS2 source code for 4K support. (4) *Multiplane Programming* : The newer chip we are planning to use is multiplane NAND chip. How does YAFFS2 support Multiplane chip? Best Regards, Saquib --000feaef43ba4a1d7804815ad214 Content-Type: text/html; charset=ISO-8859-1 Content-Transfer-Encoding: quoted-printable Hi All,

I have some queries on YAFFS2 usage.

(1) YAFFS2 Di= rect Interface : What is the use of this interface? Is it mandatory whe= n I use YAFFS2?

(2) Garbage Collection and Wear-Levelling: Ho= w do I test these things are working?

(3) 4K Page Size : This chip supports 4K page size. Is there any= changes required in YAFFS2 source code for 4K support.

(4) Multi= plane Programming : The newer chip we are planning to use is multiplane= NAND chip. How does YAFFS2 support Multiplane chip?

Best Regards,
Saquib

--000feaef43ba4a1d7804815ad214--