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37 lines
745 B
Bash
37 lines
745 B
Bash
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#!/bin/ash
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# Method to access IT5570 IO Depth 2 registers
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it5570_i2ec() {
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# TODO: Use /dev/port instead of iotools
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# Address high byte
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iotools io_write8 0x2e 0x2e
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iotools io_write8 0x2f 0x11
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iotools io_write8 0x2e 0x2f
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iotools io_write8 0x2f $(($2>>8 & 0xff))
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# Address low byte
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iotools io_write8 0x2e 0x2e
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iotools io_write8 0x2f 0x10
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iotools io_write8 0x2e 0x2f
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iotools io_write8 0x2f $(($2 & 0xff))
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# Data
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iotools io_write8 0x2e 0x2e
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iotools io_write8 0x2f 0x12
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iotools io_write8 0x2e 0x2f
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case $1 in
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"r")
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iotools io_read8 0x2f
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;;
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"w")
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iotools io_write8 0x2f "$3"
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;;
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esac
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}
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# shut down using EC external watchdog reset
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it5570_i2ec w 0x1f01 0x20
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it5570_i2ec w 0x1f07 0x01
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