AM6442: HS device

Hello Kanae,
Please refer to the following links for SDK migration to SR2.0 SoC variants
- FAQ
e2e.ti.com/.../faq-processor-sdk-am64x-am64x-am243x-sr-2-0-device-type-transition
- Migration guide in Linux SDK 8.4
software-dl.ti.com/.../Foundational_Components_Migration_Guide.html
- Build u-boot for SoC variants (SR1.0/SR2.0 + GP/HS-FS/HS-SE) in Linux SDK 8.4
software-dl.ti.com/.../Foundational_Components_Migration_Guide.html
Best,
-Hong

Hi Hong,

Thank you for your reply.
I would like to simply confirm that HS devices can be used as GP devices,
so please reply to the following questions regarding the material you referred us to.

Q1. if using AM64xSR2.0 devices, is it necessary to use Processor SDK Linux 08_04_01_04 for AM64x?
      If it is not required, please share other tools as well.

Q2. When using AM64xSR2.0 devices, is it necessary to use "tiboot3-am64x_sr2-hs-fs-evm.bin (default)"
     for the Initial boot image of AM64x HS-FS SR2.0 since the only option is HS devices?
     If selecting AM64x HS-SE SR2.0, it says to use "tiboot3-am64x_sr2-hs-evm.bin"
     for the initial boot image, but what is the difference between "HS-FS" and "HS-SE"?

Q3. Is K3-Image-Gen required when using AM64xSR2.0 devices?
     It is described as a necessary tool when using a signed system,
     but is it correct to say that AM64xSR2.0 devices must be used as a signed system?

Best regards,
Kanae

Hello Kanae,
Starting from AM64x SR2.0, only HS-FS sample is orderable from TI by customers.
1. The HS-FS functions as the "traditional" GP if no user key is programmed
2. Use HS-FS as the "traditional" HS
a). HS-FS (Field Securable) is converted to HS-SE (Security Enforced) once user’s key set is programmed on HS-FS by user using OTP Keywriter tool.
b). Any SW running on HS-SE needs to be signed with user’s key set in order to boot securely on HS-SE

A1: Yes, SR2.0 variants (HS-FS/HS-SE) is supported starting SDK 8.4
A2: Yes, the default pre-built binary included in SDK 8.4 is for booting on SR2.0 HS-FS
HS-FS functions more like the "traditional" GP, and HS-SE requires signed SW with user's key set to enforce secure boot.
A3: Yes, K3-image-gen folder is for generating "tiboot3.bin" with the two flags, where <SOC> to select SR1.0/SR2.0, and <SOC_TYPE> for device type (GP/HS-FS/HS-SE)
software-dl.ti.com/.../Foundational_Components_Migration_Guide.html
Best,
-Hong

Hi Hong,

Thank you for your quick reply.

>1. The HS-FS functions as the "traditional" GP if no user key is programmed

Regarding "user key", am I correct in understanding that user keys are not programmed
unless requested by the customer, and that HS devices are delivered without user keys programmed?

And if the customer needs to program the user key, how do they request it?
Does it need "NDA" and so on?

Best regards,
Kanae 

Hi Hong,

Thank you for your support!

Your reply makes me clear.
I will share it with my customers.

Best regards,
Kanae