Linux/TDA2PXEVM: Can't read partition table on 1:0

Hi Shravan，

Firstly, the board will boot from SD card, and then we use the mk-eMMC-boot.sh which from TI to flash the  u-boot and MLO  from SD card to the EMMC. Please find the mk-eMMC-boot.sh and uenv-emmc.txt  in the end.

On the other hand, our board can not halt at u-boot.

Thanks a lot

Terence

========================================uenv-emmc.txt===========================================

mmcargs=setenv bootargs 'console=ttyO0,115200n8 elevator=noop root=/dev/mmcblk0p2 rw rootwait earlyprintk fixrtc omapdrm.num_crtc=2 consoleblank=0 cma=64M rootfstype=ext4 snd.slots_reserved=1,1'

===============================mk-eMMC-boot.sh================================

#! /bin/sh
# Script to create bootable eMMC for OMAP5/DRA7xx evm.
#
# Author: Brijesh Singh, Texas Instruments Inc.
# : Adapted for dra7xx-evm by Nikhil Devshatwar, Texas Instruments Inc.
# : Adapted for bootable eMMC by Alaganraj, Texas Instruments Inc.
#
# Licensed under terms of GPLv2
#

VERSION="0.1"
mmc_dev="/dev/mmcblk0"

execute ()
{
$* >/dev/null
if [ $? -ne 0 ]; then
echo
echo "ERROR: executing $*"
echo
exit 1
fi
}

version ()
{
echo
echo "`basename $1` version $VERSION"
echo "Script to create bootable eMMC for dra76 evm"
echo

exit 0
}

usage ()
{
echo "
Usage: `basename $1` <options> [ files for install partition ]

Mandatory options:
--device eMMC block device node (e.g /dev/mmcblk1)

Optional options:
--version Print version.
--help Print this help message.
"
exit 1
}

check_if_main_drive ()
{
mount | grep " on / type " > /dev/null
if [ "$?" != "0" ]
then
echo "-- WARNING: not able to determine current filesystem device"
else
main_dev=`mount | grep " on / type " | awk '{print $1}'`
echo "-- Main device is: $main_dev"
echo $main_dev | grep "$device" > /dev/null
[ "$?" = "0" ] && echo "++ ERROR: $device seems to be current main drive ++" && exit 1
fi

}

# Check if the script was started as root or with sudo
user=`id -u`
[ "$user" != "0" ] && echo "++ Must be root/sudo ++" && exit

# Process command line...
while [ $# -gt 0 ]; do
case $1 in
--help | -h)
usage $0
;;
--device) shift; device=$1; shift; ;;
# --sdk) shift; sdkdir=$1; shift; ;;
--version) version $0;;
*) copy="$copy $1"; shift; ;;
esac
done

#test -z $sdkdir && usage $0
test -z $device && usage $0

#if [ ! -d $sdkdir ]; then
# echo "ERROR: $sdkdir does not exist"
# exit 1;
#fi

if [ ! -b $device ]; then
echo "ERROR: $device is not a block device file"
exit 1;
fi

check_if_main_drive

for i in `ls -1 ${device}p?`; do
#echo "unmounting device '$i'"
umount $i 2>/dev/null
done

execute "dd if=/dev/zero of=$device bs=1024 count=2048"

sync

cat << END | fdisk $device
n
p
1

+256M
n
p
2

t
1
c
a
1
w
END

# handle various device names.
PARTITION1=${device}1
if [ ! -b ${PARTITION1} ]; then
PARTITION1=${device}p1
fi

PARTITION2=${device}2
if [ ! -b ${PARTITION2} ]; then
PARTITION2=${device}p2
fi

# make partitions.
echo "Formating ${device}p1 ..."
if [ -b ${PARTITION1} ]; then
mkfs.vfat -F 32 -n "boot" ${PARTITION1}
else
echo "Cant find boot partition in /dev"
fi

echo "Formating ${device}p2 ..."
if [ -b ${PARITION2} ]; then
mkfs.ext4 -F -L "rootfs" ${PARTITION2}
else
echo "Cant find rootfs partition in /dev"
fi

#echo "Preparing for Copy..."
execute "mkdir -p /tmp/sdk/$$/mmc_boot"
execute "mkdir -p /tmp/sdk/$$/mmc_rootfs"
execute "mkdir -p /tmp/sdk/$$/emmc_boot"
execute "mkdir -p /tmp/sdk/$$/emmc_rootfs"

execute "mount ${mmc_dev}p1 /tmp/sdk/$$/mmc_boot"
execute "mount ${mmc_dev}p2 /tmp/sdk/$$/mmc_rootfs"
execute "mount ${device}p1 /tmp/sdk/$$/emmc_boot"
execute "mount ${device}p2 /tmp/sdk/$$/emmc_rootfs"

#echo "Copying boot image from ${mmc_dev}p1 to ${device}p1"
execute "cp /tmp/sdk/$$/mmc_boot/* /tmp/sdk/$$/emmc_boot/."
execute "cp /tmp/sdk/$$/mmc_boot/uenv-emmc.txt /tmp/sdk/$$/emmc_boot/uenv.txt"

#echo "Copying filesystem from ${mmc_dev}p2 to ${device}p2"
execute "cp -rvf /tmp/sdk/$$/mmc_rootfs/* /tmp/sdk/$$/emmc_rootfs/."
execute "cp -rvf /tmp/sdk/$$/mmc_rootfs/home/root/apps_emmc.sh /tmp/sdk/$$/emmc_rootfs/home/root/apps.sh

sync

#echo "unmounting ${mmc_dev}p1,${mmc_dev}p2,${device}p1,${device}p2"
execute "umount /tmp/sdk/$$/mmc_boot"
execute "umount /tmp/sdk/$$/mmc_rootfs"
execute "umount /tmp/sdk/$$/emmc_boot"
execute "umount /tmp/sdk/$$/emmc_rootfs"

execute "rm -rf /tmp/sdk/$$"
echo "upgrade 100%"

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