XELPDP_PORT_WIDTH_MASK
#define XELPDP_PORT_WIDTH(width) REG_FIELD_PREP(XELPDP_PORT_WIDTH_MASK, \
XELPDP_PORT_WIDTH_MASK | XELPDP_PORT_BUF_PORT_DATA_WIDTH_MASK,
XELPDP_PORT_WIDTH_MASK | XELPDP_PORT_REVERSAL, port_buf);