arm64: versal-net: Detect and display bootmode

Read boodmode register using versal_net_get_bootmode() in board_late_init
and prepare corresponding distro boot command sequence based on it.

versal_net_get_bootmode() will be changed to use smc calls later, but
for now directly reads the register.

Signed-off-by: Ashok Reddy Soma <ashok.reddy.soma@amd.com>
Link: https://lore.kernel.org/r/20230516144753.30869-1-ashok.reddy.soma@amd.com
Signed-off-by: Michal Simek <michal.simek@amd.com>
2 files changed