SK-AM64B: SA2UL PKA RSA Encryption and Decryption Test causes abort on SK-AM64B at Firewall_open

Yukinobu Hasinoguti

Part Number: SK-AM64B

Tool/software:

Hi,

I’m trying to run the SA2UL PKA RSA Encryption and Decryption Test on the SK-AM64B board,
but I encounter an abort when calling Firewall_open().

Q.
Is there any modification required to run the following example on SK-AM64B?

Example:
mcu_plus_sdk_am64x_11_00_00_15/examples/security/crypto/sa2ul_pka/rsa_encryption_decryption

Abort Details
The abort occurs when attempting to write startAddr to START_ADDR_L inside Firewall_open().

Call Stack at Abort:
CSL_REG32_WR_RAW() at cslr.h:331
Firewall_writeRegionAddress() at firewall.c:227
Firewall_configureSingleRegion() at firewall.c:313
Firewall_configureRegion() at firewall.c:356
Firewall_open() at firewall.c:176
Drivers_firewallOpen() at ti_drivers_open_close.c:82
Drivers_open() at ti_drivers_open_close.c:43
rsa_encryption_decryption() at rsa_encryption_decryption.c:308
main() at main.c:46

Any guidance on whether this example is compatible with SK-AM64B, and if so,
what changes are needed to avoid the abort, would be greatly appreciated.

Regards,
Yukinobu

2 months ago

0 Prashant Shivhare 2 months ago

TI__Guru 69891 points

Hello,

Yukinobu Hasinoguti said:
mcu_plus_sdk_am64x_11_00_00_15/examples/security/crypto/sa2ul_pka/rsa_encryption_decryption

How are you running this example? More specifically, which SBL you have used to initialize the board?

0 Yukinobu Hasinoguti 2 months ago in reply to Prashant Shivhare

Intellectual 300 points

Hello,

Currently, I am using the SBL NULL bootloader to initialize the board.
After the SBL NULL finishes its initialization, I load and run the rsa_encryption_decryption example via CCS (Code Composer Studio).

Let me know if this setup requires any specific configuration or if there are recommendations for using a different SBL for this example.

Regards,
Yukinobu

0 Prashant Shivhare 2 months ago in reply to Yukinobu Hasinoguti

TI__Guru 69891 points

Hello,

It is running for me as shown in the following logs:

Starting NULL Bootloader ...

DMSC Firmware Version 11.0.7--v11.00.07 (Fancy Rat)
DMSC Firmware revision 0xb
DMSC ABI revision 4.0

INFO: Bootloader_runCpu:205: CPU r5f1-0  is initialized to 800000000 Hz !!!
INFO: Bootloader_runCpu:205: CPU r5f1-1 is initialized to 800000000 Hz !!!
INFO: Bootloader_runCpu:205: CPU m4f0-0 is initialized to 400000000 Hz !!!
INFO: Bootloader_runCpu:205: CPU a530-0 is initialized to 800000000 Hz !!!
INFO: Bootloader_runCpu:205: CPU a530-1 is initialized to 800000000 Hz !!!
INFO: Bootloader_loadSelfCpu:257: CPU r5f0-0 is initialized to 800000000 Hz !!!
INFO: Bootloader_loadSelfCpu:257: CPU r5f0-1 is initialized to 800000000 Hz !!!
INFO: Bootloader_runSelfCpu:267: All done, reseting self ...

[AsymCrypt] RSA Encryption and Decryption example started ...
[AsymCrypt] Encryption and Decryption example completed!!
All tests have passed!!

Can you please share your SBL NULL logs?

0 Yukinobu Hasinoguti 2 months ago in reply to Prashant Shivhare

Intellectual 300 points

Hello,

I have captured the SBL NULL logs, but there doesn’t appear to be any significant difference.

The device I’m using is HS-FS, and the MCU+SDK version is mcu_plus_sdk_am64x_11_00_00_15.

Could you please advise on the next points I should check?

Regards,
Yukinobu

0 Prashant Shivhare 2 months ago in reply to Yukinobu Hasinoguti

TI__Guru 69891 points

Hello,

Since you are using TI board, could you please try the following images:

8836.images.zip

You may also try to see if the application built on your side is running successfully with the SBL NULL image I shared.

0 Yukinobu Hasinoguti 2 months ago in reply to Prashant Shivhare

Intellectual 300 points

Hello,

I have confirmed that the Firewall can be successfully opened using the SBL NULL you provided.
To identify the differences from my own SBL NULL,
could you please share the SBL NULL project you used?

Regards,
Yukinobu

0 Prashant Shivhare 2 months ago in reply to Yukinobu Hasinoguti

TI__Guru 69891 points

Hello,

I just shared the prebuilt image that comes with the SDK installation. Do you have any modifications in the SBL NULL or maybe in the bootloader driver?

0 Yukinobu Hasinoguti 2 months ago in reply to Prashant Shivhare

Intellectual 300 points

Hello,

We have modified the bootloader because there was a recommendation to apply the patch in the following thread when a separate issue occurred:
https://e2e.ti.com/support/microcontrollers/arm-based-microcontrollers-group/arm-based-microcontrollers/f/arm-based-microcontrollers-forum/1394016/am2432-how-to-boot-another-appimage-from-ram/5350965#5350965

Regards,
Yukinobu

0 Yukinobu Hasinoguti 2 months ago in reply to Yukinobu Hasinoguti

Intellectual 300 points

Hello,

I have reverted the bootloader patch.
If there are any known issues or side effects associated with this change,
I would appreciate it if you could let me know.

Regards,
Yukinobu

+1 Prashant Shivhare 2 months ago in reply to Yukinobu Hasinoguti

TI__Guru 69891 points

To run the SA2UL examples, the SBL must call the Bootloader_socSecHandover before jumping to the application. So, when you commented this function call, the example expectedly failed.

Please revert the driver to it's original state to run the SA2UL examples.

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SK-AM64B: SA2UL PKA RSA Encryption and Decryption Test causes abort on SK-AM64B at Firewall_open