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61843d890b
- Upstream boards will not deactivate TPM DUK - Upstream will not force BRAND_NAME which currently defaults to Heads - Upstream will not deactivate Qr code on screen output on HOTP sealing - Upstream will not offer OEM reset defaults (deprecated and now default anyway) Signed-off-by: Thierry Laurion <insurgo@riseup.net>
23 lines
620 B
Bash
Executable File
23 lines
620 B
Bash
Executable File
#!/bin/bash
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# Set the EC BRAM setting for automatic power-on.
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# If $1 is 'y', enable automatic power-on. Otherwise, disable it.
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# EC BRAM bank 1
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BRAMADDR=0x360
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BRAMDATA=0x361
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if [ "$1" = "y" ]; then
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BRAM_VALUE="0x00" # 0 -> automatic power-on
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else
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BRAM_VALUE="0x01" # 1 -> stay off
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fi
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outb "$BRAMADDR" 0x29 # Select byte at offset 29h
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outb "$BRAMDATA" "$BRAM_VALUE"
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# There's also a 16-bit checksum at offset 3eh in bank 1. The only byte
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# included in the checksum is the automatic power-on setting, so the value is
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# the same, and the upper 8 bits remain 0.
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outb "$BRAMADDR" 0x3e
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outb "$BRAMDATA" "$BRAM_VALUE"
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