From mboxrd@z Thu Jan 1 00:00:00 1970 From: Stefano Babic Date: Thu, 24 Feb 2011 12:11:30 +0100 Subject: [U-Boot] [PATCH] fsl_esdhc: Correcting esdhc timeout counter calculation In-Reply-To: <4760C0C0-8D19-4D9E-91FE-14DB87BED116@kernel.crashing.org> References: <1298537614-20797-1-git-send-email-galak@kernel.crashing.org> <4760C0C0-8D19-4D9E-91FE-14DB87BED116@kernel.crashing.org> Message-ID: <4D663CE2.40707@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 02/24/2011 11:37 AM, Kumar Gala wrote: > > On Feb 24, 2011, at 2:53 AM, Kumar Gala wrote: > >> From: Priyanka Jain >> >> - Timeout counter value is set as DTOCV bits in SYSCTL register >> For counter value set as x, >> Timeout period = (2^(13+x))/SD_CLOCK >> >> - As per 4.6.2.2 section of SD Card specification v2.00, host should >> cofigure timeout period value to minimum 250 msec. >> >> - SD_CLOCK = mmc->trans_speed >> >> - Calculating x based on >> 250 msec = (2^(13+x))/mmc->trans_speed >> >> Signed-off-by: Priyanka Jain >> Signed-off-by: Andy Fleming >> Signed-off-by: Kumar Gala >> --- >> drivers/mmc/fsl_esdhc.c | 5 ++++- >> 1 files changed, 4 insertions(+), 1 deletions(-) > > Stefano, > > Can you test this on iMX to make sure we didnt break anything there. Yes, I will test it and I will send my tested-by if everything is ok. Stefano -- ===================================================================== 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 =====================================================================