Why does N1SDP have two ROM: Secure BootROM @ 0x00_0000_0000, Non-trusted ROM @ 0x00_0500_0000

Hi Ronan,

Thanks a lot for your reply.

But I am still confused about the Non-trusted ROM. Is it a special design in the N1SDP SoC? Or a typical design of ARM server based SoC?

It seems having only one secure ROM is sufficient for the SoC, I doubt whether the Non-trusted ROM is not used in N1SDP SoC.

Thanks!

Hi Ronan,

Thanks a lot for your reply.

But I am still confused about the Non-trusted ROM. Is it a special design in the N1SDP SoC? Or a typical design of ARM server based SoC?

It seems having only one secure ROM is sufficient for the SoC, I doubt whether the Non-trusted ROM is not used in N1SDP SoC.

Thanks!

I don't know for sure, but I agree with you.

The N1SDP was an early development platform, and so likely added features that turned out not to be necessary/used (such as the on-chip ROMs).