i.MX ProcessorsのトピックRe: MFGTOOL u-boot start from USB on IMX53

MFGTOOL u-boot start from USB on IMX53

cristiansicilia — Fri, 13 Mar 2015 16:01:33 GMT

Hello *,

I have a IMX53 board, with a bootloader, kernel etc that can start form SDCARD.

Now I would like to use MFGTOOL, but trying the u-boot/kernel inside the pacakges (1.6.2.42), i get some error, and on my UART1 don't see anything.

I I would simply load u-boot on ram and execute it, this code is right?

<CMD type="boot" body="BootStrap" file ="u-boot-noh.bin" >Read from DDR script from U-Boot to init DDR Memory.</CMD>

<CMD type="jump" > Jumping to OS image. </CMD>

</LIST>

Tipically I write on SD card the u-boot.bin with:

dd if=u-boot.bin of=/dev/SDCARDDEV bs=512 skip=2 seek=2

now for generating the u-boot-noh.bin (used in MFGTOOL), I do:

dd if=u-boot.bin of=u-boot-noh.bin bs=512 skip=2

If i use it on SDCARD I see the console on UART1, using in MFGTOOL I don't see anything on UART1.

What I need to do for starting a simple u-boot.bin from USB?

Regards

Re: MFGTOOL u-boot start from USB on IMX53

fabio_estevam — Fri, 13 Mar 2015 22:50:12 GMT

Hi Cristian,

Maybe you can use the procedure I wrote for the imx6sl warp board:

http://git.denx.de/?p=u-boot/u-boot-imx.git;a=commitdiff;h=1f9d1cf6b28ec9e2230299eb8f81e58a40070655;hp=97ee459033f42e41be732a4baba06db7ba6e95e1

Regards,

Fabio Estevam

Re: MFGTOOL u-boot start from USB on IMX53

igorpadykov — Sat, 14 Mar 2015 12:34:47 GMT

Hi Cristian

for MFG Tool file should be with ivt header, but without offset,

one can try next option:

<!--

The method to enter serial download mode on MX53 LOCO boards:

Don't insert Micro SD card firstly. Press Power key to power on the board.

After MFG tool finds USB-device, insert Micro SD card

-->

<CMD type="load" file="u-boot-noh.bin" address="0x......." loadSection="OTH" setSection="APP" HasFlashHeader="TRUE" >Loading RAM kernel.</CMD>

<CMD type="jump" >Jumping to RAM kernel.</CMD>

</LIST>

change address "0x......." to value used for loading uboot in your board and change MX53_DDR.xml

(it is for QuickStart board) with board ddr init sequence. Put modified fies and MX53_DDR.xml to folder

Mfgtools..\Profiles\MX53 Linux Update\OS Firmware

Best regards

igor

Re: MFGTOOL u-boot start from USB on IMX53

weifuchang — Fri, 06 May 2016 03:38:12 GMT

Hi Fabio Estevam

I followed your > Provide instructions on how to upgrade U-boot in the eMMC. steps want to upgrade my warp board.

But, when I following below steps

> +Then U-boot should start and its messages will appear in the console program.

> + > +Use the default environment variables:
>+ > 
+=> env default -f -a > 
+=> save

It comes out

=> save Saving Environment to MMC... 
MMC Device 1 not found
No MMC card found

And I following below steps

+Run the DFU command:
+=> dfu 0 mmc 0
 
It comes out
 
=> dfu 0 mmc 0 Unknown command 'dfu' - try 'help' 
 
Please help me to resolve it.
 
Thanks
 
Nex Chang