TDA4VM: R5 SPL does not load EthFw j7-main-r5f0_0-fw binary after updating to PSDK 7.2

Piotr Cerba

Part Number: TDA4VM

Hello TI,

for some reason after updating to PSDK RTOS 7.2 (for EthFw) and to PSDK Linux 7.2 (for U-Boot) - R5 SPL does not load j7-main-r5f0_0-fw binary present in /lib/firmware on the SD card, as it used to be loaded on PSDK 7.0.

Example of log from PSDK 7.0:

Loading Environment from MMC... *** Warning - No MMC card found, using default environment

Remoteproc 2 started successfully
** File not found /lib/firmware/j7-mcu-r5f0_0-fw **
Starting ATF on ARM64 core...Code

Now before "Starting ATF on ARM64 core..." there are no remoteproc logs and I can confirm that nothing is loaded on the core, since Lauterbach debugger is exiting immediately with "Bus error" message.

I tried the steps described in https://e2e.ti.com/support/processors/f/processors-forum/915474/faq-tda4vm-different-ways-to-load-an-rtos-or-baremetal-application-along-with-linux in the "Loading from u-boot" section, but it did not change anything.

Regards,

Piotr

over 4 years ago

0 Piotr Cerba over 4 years ago

Expert 1055 points

Hello TI,

small update - following https://software-dl.ti.com/jacinto7/esd/processor-sdk-linux-jacinto7/latest/exports/docs/linux/Foundational_Components/U-Boot/UG-RemoteProc.html instead of above-mentioned FAQ entry - did the job and the binary was loaded via rproc in U-Boot. FAQ was missing:

rproc start 2

command

As a result the question now is - why did the R5 SPL stop loading the j7-main-r5f0_0-fw binary?

Regards,

Piotr

0 Keerthy J over 4 years ago in reply to Piotr Cerba

TI__Guru**** 162770 points

Hi Piotr,

R5 SPL loading remote processor firmware is descoped since SDK 7.1 after the HSM re-architecture.
So no support for loading firmwar from SPL on the current SDK starting 7.1.

Best Regards,
Keerthy

0 Piotr Cerba over 4 years ago in reply to Keerthy J

Expert 1055 points

Hi Keerthy,

thanks for the hint.

What is the current suggested automatic boot solution for binaries for R5F core like eg. EthFw?

Regards,

Piotr

0 Keerthy J over 4 years ago in reply to Piotr Cerba

TI__Guru**** 162770 points

Hi Piotr,

i would suggest to load using U-boot.

Best Regards,
Keerthy

0 Piotr Cerba over 4 years ago in reply to Keerthy J

Expert 1055 points

Hi Keerthy,

I am not able to find any documentation entry covering the migration of EthFw boot from R5 SPL to A72 U-Boot.

Is there any document describing a suggested way for doing that?

As written above - I am able to do it manually at U-Boot prompt, I am just wondering if there is any "smarter" way.

Regards,

Piotr

+1 Karan Saxena over 4 years ago in reply to Piotr Cerba

TI__Guru* 77774 points

Hi Piotr,

1. You are correct in the understanding that MCU2_0 will now be loaded by u-boot. As Keerthy mentioned this has changed after SDK7.0 (due to HSM re-architecture in the SDK). Let me see where is this being mentioned in the SDK doc.

2. If you halt at u-boot and run "printenv rproc_fw_binaries"

=> printenv rproc_fw_binaries
rproc_fw_binaries=2 /lib/firmware/j7-main-r5f0_0-fw 3 /lib/firmware/j7-main-r5f0_1-fw 4 /lib/firmware/j7-main-r5f1_0-fw 5 /lib/firmware/j7-main-r5f1_1-fw 6 /lib/firmware/j7-c66_0-fw 7 /lib/firmware/j7-c66_1-fw 8 /lib/firmware/j7-c71_0-fw

also, you should have a uenv.txt in the BOOT/ of the SD card, there you will see:

dorprocboot=1

The dorprocboot variable determines if u-boot will boot the cores mentioned in rproc_fw_binaries with the firmwares mentioned in the same.

2 /lib/firmware/j7-main-r5f0_0-fw :: Load core 2 (MCU2_0) with firmware named j7-main-r5f0_0-fw

So if you let the u-boot run, you don't need to manually run the rproc commands in u-boot.

Regards,

Karan

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TDA4VM: R5 SPL does not load EthFw j7-main-r5f0_0-fw binary after updating to PSDK 7.2