From mboxrd@z Thu Jan 1 00:00:00 1970 From: Stefano Babic Date: Tue, 27 Mar 2012 19:13:07 +0200 Subject: [U-Boot] [PATCH 1/2] FSL/eSDHC: enable the peripheral clock to detect the card In-Reply-To: <1332843901-16409-1-git-send-email-Chang-Ming.Huang@freescale.com> References: <1332843901-16409-1-git-send-email-Chang-Ming.Huang@freescale.com> Message-ID: <4F71F523.7020202@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 27/03/2012 12:25, Chang-Ming.Huang at freescale.com wrote: > From: Jerry Huang > > According to the card detection of p1/p2 paltform RM, > we should set SYSCTL[PEREN] to enable the clock. > Otherwise, after booting the u-boot, and then inserting the SD card, > the SD card can't be detected. > > Signed-off-by: Jerry Huang > CC: Andy Fleming > --- Hi Jerry, > drivers/mmc/fsl_esdhc.c | 2 ++ > 1 files changed, 2 insertions(+), 0 deletions(-) > > diff --git a/drivers/mmc/fsl_esdhc.c b/drivers/mmc/fsl_esdhc.c > index a2f35e3..1682a79 100644 > --- a/drivers/mmc/fsl_esdhc.c > +++ b/drivers/mmc/fsl_esdhc.c > @@ -491,6 +491,8 @@ int fsl_esdhc_initialize(bd_t *bis, struct fsl_esdhc_cfg *cfg) > /* First reset the eSDHC controller */ > esdhc_reset(regs); > > + esdhc_write32(®s->sysctl, SYSCTL_PEREN); > + You add this setup to all architectures: PQIII, i.MX5, i.MX6. Is it what you really want ? Best regards, Stefano Babic -- ===================================================================== DENX Software Engineering GmbH, MD: Wolfgang Denk & Detlev Zundel HRB 165235 Munich, Office: Kirchenstr.5, D-82194 Groebenzell, Germany Phone: +49-8142-66989-53 Fax: +49-8142-66989-80 Email: sbabic at denx.de =====================================================================