The common mode voltage Vocm dropping to ~0.6V for OLDI interface when in single link using RTOS (MCU+ with R5 core). Dual link is working as expected with a Vocm of ~1.2V. Issue can be reproduced when using RTOS. However, Linux and baremetal with A53 core are showing the expected Vocm of ~1.2V with both Single and Dual link. This means it is likely a software issue, since drivers are not exactly the same between Linux and MCU+.

The attached patch solves this issue and has been validated to increase Vocm to 1.2V.