Compiler/TDA2SG: eMMC boot Partition cannot work success

reset_zhang

Intellectual 850 points

Part Number: TDA2SG

Tool/software: TI C/C++ Compiler

I set the board boot from emmc from user data area ,and it is ok.

then I want to flash my MLO in the emmc boot Boot Partition 1 or 2, 　then I do that:

echo 0 > /sys/block/mcblk0boot0/force_ro

dd if=ML0 of=/dev/mmcblk0boot0 bs=1K

then I reboot the system,but it cannot work success.it looks like it cannot load MLO from mmcblk0boot0,

what I do error?

over 5 years ago

0 Gaviraju Doddabettahalli Bettegowda over 5 years ago

TI__Genius 14305 points

Hi,

Can you mention the Vision SDK version?

Thanks

Gaviraju

0 reset_zhang over 5 years ago in reply to Gaviraju Doddabettahalli Bettegowda

Intellectual 850 points

my sdk is v3.07

0 Gaviraju Doddabettahalli Bettegowda over 5 years ago in reply to reset_zhang

TI__Genius 14305 points

Hi,

Please go through the below link.

Thanks

Gaviraju

www.google.com/url

0 reset_zhang over 5 years ago in reply to Gaviraju Doddabettahalli Bettegowda

Intellectual 850 points

thanks, now I run the mlo from the emmc boot. and then I use the "dd" to put the kernel file in some addr in the emmc boot0 part.

But How can I get the kernel's code data , I found uboot cannot access the emmc boot part?

I want MLO read the code data to memory and run.

0 Gaviraju Doddabettahalli Bettegowda over 5 years ago in reply to reset_zhang

TI__Genius 14305 points

Hi,

Run the below script from the target.

mk-eMMC-boot.zip

Please follow the link provided in the previous post.

Thanks

Gaviraju

0 reset_zhang over 5 years ago in reply to Gaviraju Doddabettahalli Bettegowda

Intellectual 850 points

Sorry,I boot from emmc boot Boot Partition ,not emmc boot .so maybe I want to read the block of mmcblk0boot0 in the MLO. How can I get the data from mmcblk0boot0, I find it can't work well in the MLO now.

0 Gaviraju Doddabettahalli Bettegowda over 5 years ago in reply to reset_zhang

TI__Genius 14305 points

Hi,

Can you please elaborate on what you are trying?

what is your requirement?

Thanks

Gaviraju

0 reset_zhang over 5 years ago in reply to Gaviraju Doddabettahalli Bettegowda

Intellectual 850 points

I want to read the block of mmcblk0boot0 in the MLO code.

for example:

my kernel put in the start addr:200k size:4M

I want to get the data in the MLO.

0 Vishal Mahaveer over 5 years ago in reply to reset_zhang

TI__Mastermind 33390 points

We only support bootloader binaries in emmc boot0 partition.

Processors

Processors forum

Compiler/TDA2SG: eMMC boot Partition cannot work success