From mboxrd@z Thu Jan 1 00:00:00 1970 From: Stefan Roese Date: Tue, 18 May 2010 10:10:03 +0200 Subject: [U-Boot] hardware flash protect kept during a reboot? In-Reply-To: <4BF14E8A.3030804@freescale.com> References: <4BEDA588.8080107@freescale.com> <201005171055.05858.sr@denx.de> <4BF14E8A.3030804@freescale.com> Message-ID: <201005181010.03628.sr@denx.de> List-Id: MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit To: u-boot@lists.denx.de On Monday 17 May 2010 16:11:22 Timur Tabi wrote: > Stefan Roese wrote: > > This protection is chip specific. IIRC, then some Intel (Strata) chips > > either protect all sectors or have a sectore-wise protection mechanism. > > You need to check your FLASH documentation for the exact behaviour. > > Which chip are you using? > > I just want to know whether hardware protection works at all for anyone > through a reboot. Is the CFI "protect sector" command persistent through a > hardware power reset or power loss? Yes. Its working at least for Intel Strata FLASH chips. Cheers, Stefan -- DENX Software Engineering GmbH, MD: Wolfgang Denk & Detlev Zundel HRB 165235 Munich, Office: Kirchenstr.5, D-82194 Groebenzell, Germany Phone: (+49)-8142-66989-0 Fax: (+49)-8142-66989-80 Email: office at denx.de