From: Stefan Roese <sr@denx.de>
To: u-boot@lists.denx.de
Subject: [U-Boot] [PATCHv2 CFI flash]: Workaround for Numonyx Axcell P33/P30 256-Mbit 65nm bug
Date: Tue, 10 Aug 2010 17:28:59 +0200 [thread overview]
Message-ID: <201008101728.59679.sr@denx.de> (raw)
In-Reply-To: <20100809154603.GA3594@frolo.macqel>
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
next prev parent reply other threads:[~2010-08-10 15:28 UTC|newest]
Thread overview: 15+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-06-23 11:57 [U-Boot] [PATCH CFI flash]: Workaround for Numonyx Axcell P33/P30 256-Mbit 65nm bug Philippe De Muyter
2010-06-23 12:48 ` Wolfgang Denk
2010-06-23 13:10 ` [U-Boot] [PATCHv2 " Philippe De Muyter
2010-08-06 23:11 ` Wolfgang Denk
2010-08-09 8:32 ` Joakim Tjernlund
2010-08-09 12:57 ` Philippe De Muyter
2010-08-09 15:48 ` Philippe De Muyter
2010-08-09 15:55 ` Joakim Tjernlund
2010-08-09 13:52 ` Stefan Roese
2010-08-09 15:46 ` Philippe De Muyter
2010-08-10 11:20 ` Stefan Roese
2010-08-10 13:31 ` Philippe De Muyter
2010-08-10 13:39 ` Stefan Roese
2010-08-10 15:28 ` Stefan Roese [this message]
2010-08-10 16:12 ` [U-Boot] [PATCHv2 CFI flash]: Workaround for Numonyx Axcell?P33/P30 " Philippe De Muyter
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