AM623: How to pass tiboot3 version to kernel in Falcon mode

Tony Tang

Mastermind 26556 points

Part Number: AM623

My customer is using Falcon boot mode with SDK8.3, wants to pass tiboot3.bin version to Kernel, How to do it?

3 months ago

0 Bin Liu 3 months ago

TI__Guru*** 136506 points

Hi Tony,

What version information of tiboot3.bin do you refer to?

How kernel will use this version information?

0 Tony Tang 3 months ago in reply to Bin Liu

TI__Mastermind 26556 points

Hi Bin,

Pass bootargs like that of u-boot. the purpose is to ensure the tiboot3 version same as Kernel version of TI SDK.

0 Bin Liu 3 months ago in reply to Tony Tang

TI__Guru*** 136506 points

Hi Tony,

Yes, passing information from U-Boot to kernel is using bootargs env. So you can add something like 'ubootver=xxxx' or '<module>.ubootver=xxxx' to bootargs, The variable name form is determined by how kernel will use this information.

0 Tony Tang 3 months ago in reply to Bin Liu

TI__Mastermind 26556 points

Discussed offline.

There is not direct software interface from tiboot3 to Kernel, can use a scratch register to pass message, such as RTC has such kind of registers.

Processors

Processors forum

AM623: How to pass tiboot3 version to kernel in Falcon mode