1#!/bin/bash
2
3function usage()
4{
5    echo "Usage: $(basename "$0") init|reset"
6}
7
8if [ "$#" -ne "1" ] ; then
9    usage
10    exit 1;
11fi
12
13UART_ROUTING_SYSFS="/sys/bus/platform/drivers/aspeed-uart-routing/1e789098.uart-routing"
14
15case "$1" in
16    init)
17        echo -n "uart1" > ${UART_ROUTING_SYSFS}/uart4
18        echo -n "uart4" > ${UART_ROUTING_SYSFS}/uart1
19    ;;
20    reset)
21        echo -n "io1"   > ${UART_ROUTING_SYSFS}/uart1
22        echo -n "io4"   > ${UART_ROUTING_SYSFS}/uart4
23    ;;
24    *)
25        usage
26        exit 1;
27    ;;
28esac
29