TDA4VM: MCU R5F boot the SBL in lockstep mode

kanna

Part Number: TDA4VM

Tool/software:

Hi TI,

We need to enable lockstep mode for SBL booting. Is it possible to boot the SBL in lockstep mode.

Is there any procedure for this?

over 2 years ago

0 Brijesh Jadav over 2 years ago

TI__Guru**** 504615 points

Please refer to below faq.

https://e2e.ti.com/support/processors-group/processors/f/processors-forum/1008069/faq-tda4vm-enable-mcu_r5f-lockstep-using-spl-and-sbl

Regards,

Brijesh

0 kanna over 2 years ago in reply to Brijesh Jadav

Intellectual 365 points

Hi,

We have checked the above link, and it mentions enabling Lockstep after the SBL boot. However, we need to boot the SBL in Lockstep mode.

Is it possible to boot the SBL in Lockstep mode?

0 Brijesh Jadav over 2 years ago in reply to kanna

TI__Guru**** 504615 points

Hi,

Are you using HS device? Then you could probably change it while signing SBL with x509Certificate.

Regards,

Brijesh

0 kanna over 2 years ago in reply to Brijesh Jadav

Intellectual 365 points

Hi,

We are using a GP device and the "sbl_mmcsd_img" for booting.

0 Brijesh Jadav over 2 years ago in reply to kanna

TI__Guru**** 504615 points

Hi kanna,

Does you device support lockstep mode? After booting the SBL, can you please try reading control module register at the offset (0x45A5 0040)? Bit3 in this register tells lockstep capability of the device.

Regards,

Brijesh

0 kanna over 2 years ago in reply to Brijesh Jadav

Intellectual 365 points

Hi,

We don't have a debugger to read that register. Is there any other way to read the register?

0 Brijesh Jadav over 2 years ago in reply to kanna

TI__Guru**** 504615 points

Hi,

Most likely, no, but can you try reading from Linux prompt?

Regards,

Brijesh

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TDA4VM: MCU R5F boot the SBL in lockstep mode