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authorFurquan Shaikh <furquan@google.com>2018-04-27 11:34:00 -0700
committerFurquan Shaikh <furquan@google.com>2018-04-28 02:00:11 +0000
commitc0451791bf7ba3a378e05bb467cdb50939e0e8e0 (patch)
tree06b784700deeea2b6d8e4b6e7510e855c92ac246 /src/superio/nsc
parenta2faac2168c2630683f8097aeaf9e5cdb57d561e (diff)
mb/google/octopus: Enable pull on ESPI_IO1 line
This change configures a weak internal pull-up on ESPI_IO1 line for octopus baseboard and variant bip. ESPI_IO1 is used as ALERT# line and is expected to be open-drain. However, there is no external pull on this line and so an internal pull-up is required to ensure proper eSPI communication. BUG=b:78497502 TEST=Verified that there is no eSPI communication failure between AP and EC during boot-up and on suspend/resume. Change-Id: Ic494aa7397b94bfd233ce10da8287660997b3377 Signed-off-by: Furquan Shaikh <furquan@google.com> Reviewed-on: https://review.coreboot.org/25900 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Aaron Durbin <adurbin@chromium.org> Reviewed-by: Justin TerAvest <teravest@chromium.org> Reviewed-by: Hannah Williams <hannah.williams@intel.com>
Diffstat (limited to 'src/superio/nsc')
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