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authorMichael Niewöhner <foss@mniewoehner.de>2020-11-08 19:32:13 +0100
committerMichael Niewöhner <foss@mniewoehner.de>2020-12-11 18:52:38 +0000
commit71f639f123df43263fec0e0024ea07f257abeb50 (patch)
treee5430363d964909cdb9cfd866185e2d884f348d3 /src/mainboard/sifive
parent0b04d1bf8832fa7c499344d21aaa007aecbc925a (diff)
mb/supermicro/x11ssm-f: disable unconnected and unused/strap-only pads
There is a whole bunch of pads being configured by the vendor firmware that are either unconnected due to unpopulated resistor pads, only connected to test points for vendor debugging purposes or just used as strap. Configure them as NC with an appropriate pull to disable the RX/TX functions. The pads have been determined by dissecting a dead board. This patch has been tested thoughroughly on a machine, normally used productive, to see if any issues arise. No problems occurred at all. Signed-off-by: Michael Niewöhner <foss@mniewoehner.de> Change-Id: I06b942e3182469f87e41914c893e5b485ccca420 Reviewed-on: https://review.coreboot.org/c/coreboot/+/48100 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Tim Wawrzynczak <twawrzynczak@chromium.org>
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