Hi Ed 2013/11/20 Ed Sutter <ed.sutter@xxxxxxxxxxxxxxxxxx>: > Dong, > Hello, I am currently working on an Freescale iMX6 SABRE Board platform > http://www.freescale.com/webapp/sps/site/prod_summary.jsp?code=RDIMX6SABREBRD > > I'm trying to run with mainline kernel/uboot/buildroot just to be a bit more > up-to-date than the LTIB distribution. I am trying to setup a ROOTFS > directly > on the eMMC device. Referring to this thread on the freescale forum: > > https://community.freescale.com/message/363870?et=watches.email.thread#363870 > > I'm working with linux-3.12 and patch-v3.12-next-20131119 and I've applied > these > additional patches: http://comments.gmane.org/gmane.linux.kernel.mmc/23339 > > I am able to access the emmc device from linux when using fdisk; however, > when I attempt to run "mkfs.ext3 /dev/mmcblk0p1" the "Discarding device > blocks" > step takes over an hour (80 minutes last time I tried it). > > Fabio Estevam (from freescale) suggested I report this to you. > Are you aware of this issue? Are you aware of anyone that's actually tried > to do mkfs.ext3 on emmc with a recent kernel version for this board/SOC? > I am using a custom board based on a imx6d with a sandisk emmc. A 3.12 kernel with some light patches ( https://github.com/RobertCNelson/armv7-multiplatform/tree/v3.12.x ) is used. For me the emmc works... I only had to disable support for the boot and rpmb partition types as I get some looooong delays. greets -- Christian Gmeiner, MSc -- To unsubscribe from this list: send the line "unsubscribe linux-mmc" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html