From mboxrd@z Thu Jan 1 00:00:00 1970 From: Eric Nelson Date: Tue, 1 Dec 2015 12:05:36 -0700 Subject: [U-Boot] mmc erase fails from U-Boot command line In-Reply-To: References: <5620E3A7.7040909@defengcorp.com> <5624CEC5.8040901@digi.com> <52F917CEA1B9C64C94833D53889D478C269236@dor-sms-xch01.digi.com> Message-ID: <565DEF80.90204@nelint.com> List-Id: MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit To: u-boot@lists.denx.de Hi all, On 11/16/2015 08:30 AM, Fabio Estevam wrote: > On Mon, Nov 16, 2015 at 1:23 PM, Fabio Estevam wrote: >> Hi Hector, >> >> On Fri, Nov 13, 2015 at 12:37 PM, Fabio Estevam wrote: >>> On Fri, Nov 13, 2015 at 10:26 AM, Palacios, Hector >>> wrote: >>> >>>> Could it be a silicon revision issue? >>>> My CPU is i.MX6Q rev1.2. >>> >>> I will try to test this on other sabresd boards next week. >> >> I tested this on other mx6qsabresd board I have and I could see the error. >> >> The board that failed is revC2 > > Boards revC2 and revC4 failed. (Both are TO1.2) > > Board revB (with TO1.1) works fine. > I've also recently seen this on two different custom boards. Both are running i.MX6Q TO1.2 and both are using eMMC from Micron. The code which is generating the error message: http://git.denx.de/?p=u-boot.git;a=blob;f=drivers/mmc/fsl_esdhc.c;h=c5054d66bdcda029f0485958c87bd5154ccee591;hb=HEAD#l390 Seems to refer to an errata for the i.MX35 (ENGcm03648): http://cache.freescale.com/files/dsp/doc/errata/IMX35CE.pdf I don't see any reference to the errata in the i.MX6 docs. Ignoring the error (removing the return statement) seems to leave things in a workable state, so I suspect the problem isn't with an insufficient timeout. Regards, Eric