topic Re: Programming U-Boot to SD card in Layerscape

Programming U-Boot to SD card

victormazin — Tue, 20 Oct 2015 21:13:55 GMT

We use QorIQ_SDK_LS1021A_0.4 SDK for LS1021A processor.

I would like to ask :

Where is the u-boot-with-spl-pbl.bin file mentioned in the Freescale Linux LS1021A SDK v0.4, Rev. A, Jul 2015 manual (page 73)

Regards

Victor

Re: Programming U-Boot to SD card

lunminliang — Wed, 21 Oct 2015 05:46:23 GMT

Hello Victor Mazin,

There is a similar question on the target previously, please check if help:

how do i get u-boot-with-spl-pbl.bin?

Have a great day,
Lunmin

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Re: Programming U-Boot to SD card

addiyi — Wed, 21 Oct 2015 05:47:00 GMT

After U-Boot sdcard build complete, u-boot-with-spl-pbl.bin should be available in \Freescale-Linux-SDK-for-LS1021A-Rev2-v0.4-20150803-yocto\build_ls1021atwr_release\tmp\work\ls1021atwr-fsl-linux-gnueabi\u-boot-ls1\2014.07-r0\git\spl\

Adrian

Re: Programming U-Boot to SD card

victormazin — Wed, 21 Oct 2015 13:38:00 GMT

HI Adrian,

Thank you for your answer.

I did not find the u-boot-with-spl-pbl.bin file because the \Freescale-Linux-SDK-for-LS1021A-Rev2-v0.4-20150803-yocto\build_ls1021atwr_release\tmp\work\ls1021atwr-fsl-linux-gnueabi\u-boot-ls1\2014.07-r0\git folder does not content the spl directory on my computer.

Could you give more explanation what "U-boot sdcard build" is?

Regards

Victor

Re: Programming U-Boot to SD card

addiyi — Wed, 21 Oct 2015 14:09:00 GMT

Did you select sdcard for UBOOT_CONFIG in ls1021atwr.conf (\Freescale-Linux-SDK-for-LS1021A-Rev2-v0.4-20150803-yocto\meta-fsl-arm\conf\machine\)?

Using UBOOT_CONFIG ??= "sdcard", uboot will be build for sdcard and spl folder will be available in uboot folder.

Adrian

Re: Programming U-Boot to SD card

victormazin — Wed, 21 Oct 2015 15:00:25 GMT

Hi Lunmin,

Thank you for your answer. I followed your recommendation from the previous discussion:

1. Change the config in /meta-fsl-arm/conf/machine/ls1021atwr.conf

“ UBOOT_CONFIG ??= "sdcard"

2. $bitbake u-boot -c cleansstate

$bitbake u-boot

However I did not received the expected file (u-boot-with-spl-pbl.bin). I received the files:

u-boot-spl

u-boot-spl.bin

u-boot-spl.pbl

Which file from this list should I use to program my SD card?

Regards

Victor

Re: Programming U-Boot to SD card

victormazin — Wed, 21 Oct 2015 15:25:33 GMT

Yes, I changed the config file. After that I was able to find the SPL directory.

However I did not received the expected file (u-boot-with-spl-pbl.bin). I received the files:

u-boot-spl

u-boot-spl.bin

u-boot-spl.pbl

Which file from this list should I use to program my SD card?

Regards

Victor

Re: Programming U-Boot to SD card

addiyi — Thu, 22 Oct 2015 06:31:44 GMT

The binary for programming into sd card is u-boot.bin (\build_ls1021atwr_release\tmp\work\ls1021atwr-fsl-linux-gnueabi\u-boot-ls1\2014.07-r0\git\). you can open it in a hex editor and you will see that this binary contains rcw+pbi+uboot. Also, in this folder you can find the elf file, in case you need to debug u-boot.

In spl folder, you can find the spl elf file in case you need to debug u-boot secondary program loader.

Adrian

Re: Programming U-Boot to SD card

victormazin — Thu, 22 Oct 2015 14:59:31 GMT

Thank you Adrian,

Regards

Victor

Re: Programming U-Boot to SD card

joshkurland — Wed, 28 Oct 2015 14:57:29 GMT

Hi, I am also having trouble getting u-boot-with-spl-pbl.bin.

I edited meta-fsl-arm/conf/machine/ls1021atwr.conf to use UBOOT_CONFIG ??= "sdcard". I then ran bitbake u-boot -c cleansstate and bitbake u-boot with no errors. However the folder tmp/work/ls1021atwr-fsl-linux-gnueabi/u-boot-ls1/2014.07-r0/git is still empty.

Are there any other steps necessary to make u-boot-with-spl-pbl.bin?

Thank you,

Josh

Re: Programming U-Boot to SD card

addiyi — Thu, 29 Oct 2015 07:32:44 GMT

Hi Josh,

Try the following steps:

bitbake -c cleansstate u-boot

bitbake -c patch u-boot

bitbake -c compile -f u-boot

Adrian

Re: Programming U-Boot to SD card

joshkurland — Thu, 29 Oct 2015 20:51:30 GMT

Hi Adrian,

Thank you for the help. With those commands I am able to build u-boot with spl. However, after writing the new binary image to the SD card, I am unable to see any console prompt from u-boot.

These are the steps I have done so far:

Edit meta-fsl-arm/conf/machine/ls1021atwr.conf to use UBOOT_CONFIG ??= "sdcard"

$ cd build_ls1021atwr_release/

$ bitbake -c cleansstate u-boot

$ bitbake -c patch u-boot

$ bitbake -c compile -f u-boot

$ cd tmp/work/ls1021atwr-fsl-linux-gnueabi/u-boot-ls1/2014.07-r0/git/

$ sudo dd if=u-boot.bin of=/dev/sdN bs=512 seek=8 && sync

$ umount /dev/sdN1

The DIP switch SW2 is set to 00101111 and SW3 is 01100001. J19/J20 are both shorted to 2:3.

Doing a hexdump of u-boot.bin shows the eSDHC preable word AA 55 AA 55 at address 0x1000 (LSA1021A Reference Manual rev E pgs 252 & 266).

This discussion (https://community.freescale.com/thread/371771) has attached a working u-boot_prebuilt.bin. After extracting and running through the same steps as above, I was able to get a u-boot prompt. So that confirms that my switches are in the correct position and u-boot is getting written to the card. I suspect that my u-boot.bin is still not being built correctly.

Are there any other steps required to make u-boot boot on SD?

Thank you,

Josh

Re: Programming U-Boot to SD card

addiyi — Fri, 30 Oct 2015 06:39:53 GMT

Hi Josh,

Could you provide info about the SDK version you are using and CPU revision?

Adrian

Re: Programming U-Boot to SD card

joshkurland — Fri, 30 Oct 2015 16:04:48 GMT

Hello Adrian,

From your suggestion, I re-downloaded the QorIQ SDK v1.8 SOURCE SDK from Freescale's website and rebuilt u-boot following the previous steps. This time I had no problems.

Thank you very much for the help,

Josh