Dear TI ,
HW platform : TI AM625
SW version : (8.6.0.42)
I refer to the following url :
I don't want to put u-boot image to /dev/mmcblk0boot0 . I want to copy u-boot image to /dev/mmcblk0 .(emmc : non-boot0)
I want to know how to implement .
(1) Set the switch (B0-B15) : XXXXXXXX XXXXXXXX
(2) How to run u-boot command to make it boot from emmc?
Dear TI ,
(1) Is this method applicable to AM62x GP devices?
(2) I only see switch1 and switch2 . Where is switch3 ?
Hi,
Now I use Processor SDK Linux for AM62x 09.00.00.03
Follow up step.
When I flash U-Boot to eMMC,the /dev/mmcblk0p1 filesystem type is bad.
And switch to eMMC boot mode show error.
Hi,
I update my details step on below.
flush_cache () {
sync
blockdev --flushbufs /dev/mmcblk0
}
echo "partition_drive"
echo "Part1..."
LC_ALL=C sgdisk --zap-all --clear "/dev/mmcblk0" > /dev/null 2>&1 || true
sync
flush_cache
dd if=/dev/mmcblk0 of=/dev/null bs=1M count=1 > /dev/null 2>&1 || true
echo "Part2..."
LC_ALL=C sgdisk -n 1:8192:+128MiB -t 1:0c00 -c 1:"boot" -u 1:88B08C42-0C03-4BD5-8171-13F8D8E0433B "${destination}"
sync
flush_cache
dd if=/dev/mmcblk0 of=/dev/null bs=1M count=1 > /dev/null 2>&1 || true
echo "Part3..."
LC_ALL=C sgdisk -n 2:: -t 2:8300 -c 2:"rootfs" -A 2:set:2 -u 2:BC13C2FF-59E6-4262-A352-B275FD6F7172 "${destination}"
sync
flush_cache
dd if=/dev/mmcblk0 of=/dev/null bs=1M count=1 > /dev/null 2>&1 || true
echo "format partitions"
mkfs.vfat /dev/mmcblk0p1
mkfs.ext4 /dev/mmcblk0p2
echo "write bootloader into eMMC..."
dd if=/opt/images/tiboot3.bin of=/dev/mmcblk0p1 seek=0
dd if=/opt/images/tispl.bin of=/dev/mmcblk0p1 seek=1024
dd if=/opt/images/u-boot.img of=/dev/mmcblk0p1 seek=5120
echo "write Root Filesystem into eMMC..."
mkdir -p /mnt/temp
mount -t ext4 /dev/mmcblk0p2 /mnt/temp
tar -C /mnt/temp -xf /opt/images/tisdk-default-image-am62xx-evm.tar.xz
umount /mnt/temp
Then follow up...
5. Reboot the board & in u-boot do:
=> mmc partconf 0 1 7 1
=> mmc bootbus 0 2 0 0
=> setenv bootpart 0:2
6. Shutoff the board & set boot mode switch settings:
SW2:00000000 SW3:01000010
And show.
Thanks.
Hi Fox,
You are mixing up 2 bootmodes here:
1. SW2:00000000 SW1:01000010 and formating the boot partition are part of the process for MMCSD Boot (eMMC Boot using UDA):
As you can see by the second image, if the SW2:00000000 SW1:01000010 bit is zero, then we are booting using Filesystem mode.
And if you google what is a RAW eMMC boot, you will find: A RAW partition is any partition on the eMMC that is not formatted.
2. It seems like you are trying to use RAW mode. So your switch setting should be: SW2:00000000 SW1:01000011 and do not format the first partition /dev/mmcblk0p1. You only have to create the partition and flash the binaries using the following commands:
echo "write bootloader into eMMC..."
dd if=/opt/images/tiboot3.bin of=/dev/mmcblk0p1 seek=0
dd if=/opt/images/tispl.bin of=/dev/mmcblk0p1 seek=1024
dd if=/opt/images/u-boot.img of=/dev/mmcblk0p1 seek=5120
~ Judith
Hi,
Use Raw mode:
flush_cache () {
sync
blockdev --flushbufs /dev/mmcblk0
}
echo "partition_drive"
echo "Part1..."
LC_ALL=C sgdisk --zap-all --clear "/dev/mmcblk0" > /dev/null 2>&1 || true
sync
flush_cache
dd if=/dev/mmcblk0 of=/dev/null bs=1M count=1 > /dev/null 2>&1 || true
echo "Part2..."
LC_ALL=C sgdisk -n 1:8192:+128MiB -t 1:0c00 -c 1:"boot" -u 1:88B08C42-0C03-4BD5-8171-13F8D8E0433B "/dev/mmcblk0"
sync
flush_cache
dd if=/dev/mmcblk0 of=/dev/null bs=1M count=1 > /dev/null 2>&1 || true
echo "Part3..."
LC_ALL=C sgdisk -n 2:: -t 2:8300 -c 2:"rootfs" -A 2:set:2 -u 2:BC13C2FF-59E6-4262-A352-B275FD6F7172 "/dev/mmcblk0"
sync
flush_cache
dd if=/dev/mmcblk0 of=/dev/null bs=1M count=1 > /dev/null 2>&1 || true
#echo "format partitions"
#mkfs.vfat /dev/mmcblk0p1
echo "write bootloader into eMMC..."
dd if=/opt/images/tiboot3.bin of=/dev/mmcblk0p1 seek=0
dd if=/opt/images/tispl.bin of=/dev/mmcblk0p1 seek=1024
dd if=/opt/images/u-boot.img of=/dev/mmcblk0p1 seek=5120
5. Reboot the board & in u-boot do:
=> mmc partconf 0 1 7 1
=> mmc bootbus 0 2 0 0
=> setenv bootpart 0:2
6. Shutoff the board & set boot mode switch settings:
SW2:00000000 SW3:01000011
It's same err message,but show more one line.
Use filesystem mode:
flush_cache () {
sync
blockdev --flushbufs /dev/mmcblk0
}
echo "partition_drive"
echo "Part1..."
LC_ALL=C sgdisk --zap-all --clear "/dev/mmcblk0" > /dev/null 2>&1 || true
sync
flush_cache
dd if=/dev/mmcblk0 of=/dev/null bs=1M count=1 > /dev/null 2>&1 || true
echo "Part2..."
LC_ALL=C sgdisk -n 1:8192:+128MiB -t 1:0c00 -c 1:"boot" -u 1:88B08C42-0C03-4BD5-8171-13F8D8E0433B "/dev/mmcblk0"
sync
flush_cache
dd if=/dev/mmcblk0 of=/dev/null bs=1M count=1 > /dev/null 2>&1 || true
echo "Part3..."
LC_ALL=C sgdisk -n 2:: -t 2:8300 -c 2:"rootfs" -A 2:set:2 -u 2:BC13C2FF-59E6-4262-A352-B275FD6F7172 "/dev/mmcblk0"
sync
flush_cache
dd if=/dev/mmcblk0 of=/dev/null bs=1M count=1 > /dev/null 2>&1 || true
echo "format partitions"
mkfs.vfat -F 16 /dev/mmcblk0p1
echo "write bootloader into eMMC..."
#dd if=/opt/images/tiboot3.bin of=/dev/mmcblk0p1 seek=0
#dd if=/opt/images/tispl.bin of=/dev/mmcblk0p1 seek=1024
#dd if=/opt/images/u-boot.img of=/dev/mmcblk0p1 seek=5120
mkdir -p /mnt/temp
mount -t vfat /dev/mmcblk0p1 /mnt/temp
cp /opt/images/tiboot3.bin /mnt/temp
cp /opt/images/tispl.bin /mnt/temp
cp /opt/images/u-boot.img /mnt/temp
umount /mnt/temp
5. Reboot the board & in u-boot do:
=> mmc partconf 0 1 7 1
=> mmc bootbus 0 2 0 0
=> setenv bootpart 0:2
6. Shutoff the board & set boot mode switch settings:
SW2:00000000 SW3:01000010
It's no show any messages.
Thanks.
Hi,
1. Use 1 partitions in UDA. For SDMMC Boot (from eMMC UDA) in RAW mode is work.
2.But I need 2 partitions in UDA,one for boot and one for rootfs.
then I use fs mode:
LC_ALL=C sgdisk --zap-all --clear "/dev/mmcblk0" > /dev/null 2>&1
dd if=/dev/mmcblk0 of=/dev/null bs=1M count=1 > /dev/null 2>&1
LC_ALL=C sgdisk -n 1:0:+128MiB -t 1:0700 -c 1:"boot" /dev/mmcblk0
LC_ALL=C sgdisk -n 2:: -t 2:8300 -c 2:"root" /dev/mmcblk0
mkfs.vfat -F 32 /dev/mmcblk0p1
mkfs.ext4 /dev/mmcblk0p2
mkdir -p /mnt/temp
mount -t vfat /dev/mmcblk0p1 /mnt/temp
cp /opt/images/tiboot3.bin /mnt/temp
cp /opt/images/tispl.bin /mnt/temp
cp /opt/images/u-boot.img /mnt/temp
umount /mnt/temp
5. Reboot the board & in u-boot do:
=> mmc partconf 0 1 7 1
=> mmc bootbus 0 2 0 0
=> setenv bootpart 0:2
6. Shutoff the board & set boot mode switch settings:
SW2:00000000 SW3:01000010
It's no show any messages on console.
I check the format is correct.
Thanks.
Hi,
I using Processor SDK 9.0 and customize bord with am6254.
Now in u-boot mode I using the follow cmd then I can into the Debian12 OS.
=> mmc partconf 0 1 7 1 => mmc bootbus 0 2 0 0 => setenv mmcdev 0 => setenv bootpart 0:2 => run update_to_fit => run findfdt => run loadimage => run mmcboot => boot
1.How to use this env when I boot from eMMC?
2.In eMMC boot on Debian12 is randow show the message but not in SDcard boot.
[ 146.775093] cpufreq: __target_index: Failed to change cpu frequency: -34
[ 148.751109] cpu cpu0: dev_pm_opp_set_rate: failed to find OPP for freq 1404000000 (-34)
Thanks.
Hi,
1.
I check spec only give boot0 address ,not in UDA.
I use 0x3400 is same situation.
2.
a.get SDcard image and burn in SDcard
tisdk-debian-bookworm-am62xx-evm.wic.xz
b.get SDK 9 and install
ti-processor-sdk-linux-am62xx-evm-09.00.00.03-Linux-x86-Install.bin
c.modify board-support\ti-u-boot\configs\am62x_evm_a53_defconfig
+CONFIG_ENV_IS_IN_MMC=y
+CONFIG_SYS_MMC_ENV_PART=1
d.make u-boot
make u-boot make u-boot_stage sudo DESTDIR=/media/$USER/boot PLATFORM=am62xx-evm make u-boot_install #make u-boot_clean sudo cp board-support/built-images/tiboot3-am62*-gp-evm.bin /media/$USER/boot/tiboot3.bin sudo cp board-support/built-images/u-boot.img board-support/built-images/tispl.bin /media/$USER/boot
e.Then boot in SDcard is success,but boot in eMMC will encounter the previous situation.
3.
Because I cant set env with "saveenv" ,so I directly set the env in mmc.env.
Now I can boot Debian12 on eMMC mode.
But if you know how to solve and set "saveenv",please let me know.
Thanks.