1.2 Configuration settings for M54418TWR Development Board
CONFIG_MCF5441x -- define for all MCF5441x CPUs
CONFIG_M54418 -- define for all Freescale MCF54418 CPUs
-CONFIG_M54418TWR -- define for M54418TWR board
CONFIG_MCFUART -- define to use common CF Uart driver
CONFIG_SYS_UART_PORT -- define UART port number, start with 0, 1 and 2