From mboxrd@z Thu Jan 1 00:00:00 1970 From: Stefan Roese Date: Tue, 10 Aug 2010 17:28:59 +0200 Subject: [U-Boot] =?utf-8?q?=5BPATCHv2_CFI_flash=5D=3A_Workaround_for_Numo?= =?utf-8?q?nyx_Axcell=09P33/P30_256-Mbit_65nm_bug?= In-Reply-To: <20100809154603.GA3594@frolo.macqel> References: <20100623115701.GA17625@frolo.macqel> <201008091552.03923.sr@denx.de> <20100809154603.GA3594@frolo.macqel> Message-ID: <201008101728.59679.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 Hi Philippe, one more thing: On Monday 09 August 2010 17:46:03 Philippe De Muyter wrote: > Here is the excerpt from the errata : > > Workaround: If the interval between 60h and its subsequent command > can be guaranteed within 20?s, Option I is recommended, > otherwise Option II (involves hardware) should be selected. > Option I: The table below lists the detail command sequences: > Command > Data bus Address bus Remarks > Sequence > 1 90h Block Address > Read Lock Status > 2 Read Block Address + 02h > (2)(3) (1) > 3 60h Block Address > (2)(3) (1) Lock/Unlock/RCR > Configuration 4 D0h/01h/03h Block Address > Notes: > (1) Block Address refers to RCR configuration data only when the 60h > command sequence is used to set RCR register combined with 03h > subsequent command. > (2) For the third and fourth command sequences, the Block Address must > be the same. > (3) The interval between 60h command and its subsequent D0h/01h/2Fh/03h > commands should be less than 20?s. Please add this workaround text from the errata to the commit text in your next patch version. This makes things easier - no need to search for the errata. Thanks. 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