Yes, AMD's PSP is actually licensed from ARM, its why there is a small ARM Cortex CPU on AMD's CPUs and APUs. The first few times they tried adding it on did not go well FYI, so they disabled this small chunk of silicon at the factory.

In 2013 AMD successfully fabricated a CPU with said ARM Cortex core embedded, thus that was the first year they actually offered their PSP. AMD had similar problems with their APU's for a number of years IIRC, whereby making a single chip with both CPU and GPU on it had poor yields with a high percentage of dead chips.