From mboxrd@z Thu Jan 1 00:00:00 1970 From: Wolfgang Denk Date: Fri, 08 Nov 2013 08:24:37 +0100 Subject: [U-Boot] fw_setenv device not accessible In-Reply-To: <1383894946586-167013.post@n7.nabble.com> References: <1383039837672-166275.post@n7.nabble.com> <20131029105124.F417838061F@gemini.denx.de> <1383894946586-167013.post@n7.nabble.com> Message-ID: <20131108072437.B63BF380499@gemini.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 Dear pshambhu, In message <1383894946586-167013.post@n7.nabble.com> you wrote: > > In u-boot i am passing mtdargs in RW mode only. but still i am unable > to change the values.Yeah its true that mtd4 device is in READ only mode, > but how can i change the access permission of the device, so that i can > set/change the u-boot environment variable values from the Linux platform. > > please provide me the solution for this ?? first, this is effectively a Linux issue, so you are mostly off topic here. Second, it's very difficult to help at all if all you provide is some vague statement without any details like an exact description of what you attempted to do and what the result was - including for example a complete boot log. So I can only guess... It seems you are trying to pass MTD partition information to Linux by using the mtdargs boot argument, and this doesn't work. Well, perhaps your Linux kernel is not configured to use such information at all? Eventually it takes the informantion from somewhere else, like from the device tree? Best regards, Wolfgang Denk -- DENX Software Engineering GmbH, MD: Wolfgang Denk & Detlev Zundel HRB 165235 Munich, Office: Kirchenstr.5, D-82194 Groebenzell, Germany Phone: (+49)-8142-66989-10 Fax: (+49)-8142-66989-80 Email: wd at denx.de Inside every old person is a young person wondering what happened. - Terry Pratchett, _Moving Pictures_