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authorMarshall Dawson <marshalldawson3rd@gmail.com>2018-09-26 15:43:21 -0600
committerMartin Roth <martinroth@google.com>2018-10-01 15:03:49 +0000
commitfdb846ddf270e5a3406a835fb67a5c1b049f9bf3 (patch)
tree4a30964f3f00bdb1fc0264ac607fb3773037e094 /src/mainboard/google
parentcb2b70b3d205d4352bf92e917b8f7c1e9a12a032 (diff)
amd/stoneyridge: Add USB ASL for D0/D3cold
Add methods, and call them, for transitioning EHCI and xHCI to D0 or D3cold. Add device objects necessary for waking the system via USB. In order for USB to wake the system, it must be in the D3cold state. Then on resume, its firmware must be reloaded. This code relies heavily on AMD's FchCarrizo.asl (delivered in NDA PI package), and has been modified to fit the coreboot ASL names. In addition, AMD's methodology is to generate a SW SMI for saving/restoring certain settings. This has been ported into U3D0 and U3D3, as the necessary registers are now publicly documented. BUG=b:77602074 Change-Id: I83d0dce13411601691318cc67c99adf291ccf3bb Signed-off-by: Marshall Dawson <marshalldawson3rd@gmail.com> Reviewed-on: https://review.coreboot.org/28772 Reviewed-by: Martin Roth <martinroth@google.com> Reviewed-by: Richard Spiegel <richard.spiegel@silverbackltd.com> Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
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