34 lines
759 B
Bash
34 lines
759 B
Bash
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#!/bin/bash -eu
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function usage()
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{
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echo "Usage: $(basename "$0") init|reset"
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}
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if [ "$#" -ne "1" ] ; then
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usage
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exit 1;
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fi
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cmd="${1}"
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UART_ROUTING_PATH="/sys/bus/platform/drivers/aspeed-uart-routing/1e78909c.uart-routing"
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case "${cmd}" in
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init)
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echo -n "uart3" > ${UART_ROUTING_PATH}/uart1
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echo -n "uart1" > ${UART_ROUTING_PATH}/uart3
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echo -n "io1" > ${UART_ROUTING_PATH}/uart4
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echo -n "uart4" > ${UART_ROUTING_PATH}/io1
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;;
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reset)
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echo -n "io1" > ${UART_ROUTING_PATH}/uart1
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echo -n "io3" > ${UART_ROUTING_PATH}/uart3
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echo -n "io4" > ${UART_ROUTING_PATH}/uart4
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echo -n "uart1" > ${UART_ROUTING_PATH}/io1
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;;
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*)
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usage
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exit 1;
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;;
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esac
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