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authorLin Huang <hl@rock-chips.com>2016-07-07 19:19:48 +0800
committerMartin Roth <martinroth@google.com>2016-07-25 18:57:55 +0200
commit9dc00ef625cfd3a9fe130ab8e75473fad6d048dc (patch)
tree8c92187e2bb7c8a47dee07efee6e99c89f1dbb50 /src/soc/intel/apollolake
parentde110ee07d3e3c4bd0e7d65093cf58beaa5a3748 (diff)
rockchip/rk3399: set CA drive strength to 48ohms
As shown in testing, if CA use 34.3ohms drive strength, it leads to an overshoot. To fix this, change the drive strength to 48 ohms. BRANCH=none BUG=chrome-os-partner:54871 TEST=run "stressapptest -M 1024 -s 1000" on kevin board and pass Change-Id: I8666474fc18391da14a3338611f962f2f08f36d0 Signed-off-by: Martin Roth <martinroth@chromium.org> Original-Commit-Id: fbc1c13f9ab808fc907b2e3f9bde1d09f92980f1 Original-Change-Id: I231f5b1bd45ff262686fbacbaf119a8a57fad27b Original-Signed-off-by: Lin Huang <hl@rock-chips.com> Original-Reviewed-on: https://chromium-review.googlesource.com/358761 Original-Commit-Ready: Dan Shi <dshi@chromium.org> Original-Tested-by: Caesar Wang <wxt@rock-chips.com> Original-Reviewed-by: Julius Werner <jwerner@chromium.org> Reviewed-on: https://review.coreboot.org/15811 Tested-by: build bot (Jenkins) Reviewed-by: Furquan Shaikh <furquan@google.com>
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