Linux/AM5728: AM572XEVM: boot issue with relevant DTS

Prasanth R

Intellectual 370 points

Part Number: AM5728

Tool/software: Linux

Hi,

I'm using TI-SDK 05.01, I couldn't see my EVM getting the boot with the correct dts.

I could see the LCD is not working fine and HDMI is failing to load with am57xx-evm.dts,

Instead, I could the board by default takes am57xx-beagle-x15.dts where HDMI working good with it but LCD fails.

Any ideas on this!

Regards,

nick

over 7 years ago

0 Margarita Gashova over 7 years ago

TI__Guru* 80190 points

Hello,

Have you made any changes or you are using the default PSDK + EVM?

What you are trying to archive? Enable the both displays?

BR
Margarita

0 Prasanth R over 7 years ago in reply to Margarita Gashova

Intellectual 370 points

Hi Margarita,

Yes, I am using the default sdk binaries, with the uboot built with "am57xx_evm" and used the output demo images from sdk,
I need to enable both the displays.

Regards,

nick

0 Margarita Gashova over 7 years ago in reply to Prasanth R

TI__Guru* 80190 points

Hello,

I have tried with the default PSDK 5.0. The both displays are enable. I see the Matrix on the LCD display since this is the primary display and the weston on the HDMI. What you mean that the display is failing? By "failing" do you mean that you do not see the matrix gui on it?
Please take a look in this guides:
software-dl.ti.com/.../Foundational_Components_Graphics.html
Guide how to set displays:
software-dl.ti.com/.../How_to_Guides_Target.html

BR
Margarita

0 Prasanth R over 7 years ago in reply to Margarita Gashova

Intellectual 370 points

Hi,
Did you tried with the prebuilt images from am57xx-evm-linux-sdk-bin-05.01.00.11.tar.xz
software-dl.ti.com/.../index_FDS.html

In this link it show new images for 5.2 sdk, I am downloading the images now.
With this am57xx-evm-linux-sdk-bin-05.01.00.11.tar.xz, I couldn't get the u-boot and I am getting the above metioned issues.

Could you share the link for PSDK 5.0, which you were using?

0 Margarita Gashova over 7 years ago in reply to Prasanth R

TI__Guru* 80190 points

Hello,

I have not tried am57xx-evm-linux-sdk-bin-05.01.00.11.tar.xz.
Please try to install
ti-processor-sdk-linux-am57xx-evm-05.02.00.10-Linux-x86-Install.bin
and create new sdcard.
Here is the link to the wiki how to create sd card:
processors.wiki.ti.com/.../Processor_SDK_Linux_create_SD_card_script

You could search for "Previous SDK Link" in the link that you shared.

Hope this helps.

BR
Margarita

0 Prasanth R over 7 years ago in reply to Margarita Gashova

Intellectual 370 points

Hi

I have exactly used this "ti-processor-sdk-linux-am57xx-evm-05.02.00.10-Linux-x86-Install.bin" in which I could see this?

=> printenv
arch=arm
args_mmc=run finduuid;setenv bootargs console=${console} ${optargs} root=PARTUUID=${uuid} rw rootfstype=${mmcrootfstype}
baudrate=115200
board=am57xx
board_name=beagle_x15

findfdt=if test $board_name = beagle_x15; then setenv fdtfile am57xx-beagle-x15.dtb; fi;

You could see here it is taking the am57xx-beagle-x15.dtb, how can I confirm the DTB used was "am57xx-evm.dtb" in this case

But now with this "ti-processor-sdk-linux-am57xx-evm-05.02.00.10-Linux-x86-Install.bin" and setenv optargs omapdrm.displays=1,0
I couldn't see any output on either of display. Could you share some inputs to debug this?

Regards,
nick

0 Margarita Gashova over 7 years ago in reply to Prasanth R

TI__Guru* 80190 points

Hello,

What exactly is the board that you are using?

I will give an example with my board:

Here is part of my printenv command:

...

board=am57xx

board_name=am57xx_evm_reva3

board_rev=A.30

...

findfdt=if test $board_name = omap5_uevm; then setenv fdtfile omap5-uevm.dtb; fi; if test $board_name = dra7xx; then setenv fdtfile dra7-evm.dtb; fi;if test $board_name = dra72x-revc; then setenv fdtfile dra72-evm-revc.dtb; fi;if test $board_name = dra72x; then setenv fdtfile dra72-evm.dtb; fi;if test $board_name = dra71x && test $boot_nand = 1; then setenv fdtfile dra71-evm-nand.dtb; fi;if test $board_name = dra71x && test $boot_nand = 0; then setenv fdtfile dra71-evm.dtb; fi;if test $board_name = dra71-lcard; then setenv fdtfile dra71-lcard.dtb; fi;if test $board_name = dra76x_acd; then setenv fdtfile dra76-evm.dtb; fi;if test $board_name = beagle_x15; then setenv fdtfile am57xx-beagle-x15.dtb; fi;if test $board_name = beagle_x15_revb1; then setenv fdtfile am57xx-beagle-x15-revb1.dtb; fi;if test $board_name = beagle_x15_revc; then setenv fdtfile am57xx-beagle-x15-revc.dtb; fi;if test $board_name = am572x_idk && test $idk_lcd = no; then setenv fdtfile am572x-idk.dtb; fi;if test $board_name = am572x_idk && test $idk_lcd = osd101t2045; then setenv fdtfile am572x-idk-lcd-osd101t2045.dtb; fi;if test $board_name = am572x_idk && test $idk_lcd = osd101t2587; then setenv fdtfile am572x-idk-lcd-osd101t2587.dtb; fi;if test $board_name = am574x_idk && test $idk_lcd = no; then setenv fdtfile am574x-idk.dtb; fi;if test $board_name = am574x_idk && test $idk_lcd = osd101t2587; then setenv fdtfile am574x-idk-lcd-osd101t2587.dtb; fi;if test $board_name = am57xx_evm; then setenv fdtfile am57xx-evm.dtb; fi;if test $board_name = am57xx_evm_reva3; then setenv fdtfile am57xx-evm-reva3.dtb; fi;if test $board_name = am571x_idk && test $idk_lcd = no; then setenv fdtfile am571x-idk.dtb; fi;if test $board_name = am571x_idk && test $idk_lcd = osd101t2045; then setenv fdtfile am571x-idk-lcd-osd101t2045.dtb; fi;if test $board_name = am571x_idk && test $idk_lcd = osd101t2587; then setenv fdtfile am571x-idk-lcd-osd101t2587.dtb; fi;if test $fdtfile = undefined; then echo WARNING: Could not determine device tree to use; fi;

...

In my case this dtb is loaded am57xx-evm-reva3.dtb.

This guide http://processors.wiki.ti.com/index.php/How_to_Change_dtb_File

Processors

Processors forum

Linux/AM5728: AM572XEVM: boot issue with relevant DTS