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* Add support for the ENE Embedded Debug Interface EDI and KB9012 ECPaul Kocialkowski2018-02-111-0/+51
The ENE Embedded Debug Interface (EDI) is a SPI-based interface for accessing the memory of ENE embedded controllers. The ENE KB9012 EC is an embedded controller found on various laptops such as the Lenovo G505s. It features a 8051 microcontroller and has 128 KiB of internal storage for program data. EDI can be accessed on the KB9012 through pins 59-62 (CS-CLK-MOSI-MISO) when flash direct access is not in use. Some firmwares disable EDI at runtime so it might be necessary to ground pin 42 to reset the 8051 microcontroller before accessing the KB9012 via EDI. The example of flashing KB9012 at Lenovo G505S laptop could be found here: http://dangerousprototypes.com/docs/Flashing_KB9012_with_Bus_Pirate Change-Id: Ib8b2eb2feeef5c337d725d15ebf994a299897854 Signed-off-by: Mike Banon <mikebdp2@gmail.com> Signed-off-by: Paul Kocialkowski <contact@paulk.fr> Reviewed-on: https://review.coreboot.org/23259 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Nico Huber <nico.h@gmx.de>