As per T23X-MGBE_HSIv2-14 requirement for PCS register we need to perform readback for each write operation to verify write operation was successful Bug 3606649 Change-Id: I7cca6baa43feaa4207b6158f0abc796e656338dd Signed-off-by: Om Prakash Singh <omp@nvidia.com> Reviewed-on: https://git-master.nvidia.com/r/c/kernel/nvethernetrm/+/2700845 Tested-by: mobile promotions <svcmobile_promotions@nvidia.com> Reviewed-by: mobile promotions <svcmobile_promotions@nvidia.com>