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2020-09-07ec/system76: Add console supportJeremy Soller
This adds support for line-buffered console output to System76 EC firmware. Once the print command is received, the EC firmware multiplexes the output to any enabled console on the EC. This can be a memory ringbuffer, a parallel port (using the keyboard connector), or i2c (using the battery connector). Once the entire buffer is sent, it sets the command register to 0, indicating completion. For more information, please see: https://github.com/system76/ec/blob/master/doc/debugging.md Tested on system76/lemp9 with CONSOLE_SYSTEM76_EC enabled. Signed-off-by: Jeremy Soller <jeremy@system76.com> Change-Id: I861bf3e22f40dd6c3ec7ba1d73711b399358e332 Reviewed-on: https://review.coreboot.org/c/coreboot/+/43718 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Michael Niewöhner
2020-07-23ec/system76_ec: add support for System76 ECJeremy Soller
This adds ACPI code for System76 EC and converts system76/lemp9 to use EC_SYSTEM76_EC. Tested on system76/lemp9. Signed-off-by: Jeremy Soller <jeremy@system76.com> Change-Id: I1f693268d94b693b6764e4a3baf4c3180689f3be Reviewed-on: https://review.coreboot.org/c/coreboot/+/43612 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Philipp Deppenwiese <zaolin.daisuki@gmail.com> Reviewed-by: Michael Niewöhner