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authorLin Huang <hl@rock-chips.com>2016-06-16 10:34:04 +0800
committerMartin Roth <martinroth@google.com>2016-06-23 17:22:44 +0200
commit321a6a94f974257a96e753dc013be58d69938e05 (patch)
tree4698dcd8fb121181a78839f42f6b9ce0421fa732 /payloads/external
parent3fd57d8239e036ef203e6d1c8db111b7395214db (diff)
rockchip/rk3399: fix sdram training issue
After write leveling for all ranks, check the PHY_CLK_WRDQS_SLAVE_DELAY result, if the two ranks in one slice both meet (0x200-PHY_CLK_WRDQS_SLAVE_DELAY < 0x20) or (0x200-PHY_CLK_WRDQS_SLAVE > 0x1E0), enable PHY_WRLVL_EARLY_FORCE_ZERO for this slice, and trigger write leveling again. BRANCH=none BUG=chrome-os-partner:54144 TEST=run "stressapptest -M 1024 -s 1000" and pass Change-Id: I1a0e4e888eb62b5fae5b5e5437a385e8660a246d Signed-off-by: Martin Roth <martinroth@chromium.org> Original-Commit-Id: 717cbac97b2045f2934e99859ce405aa3637b1c4 Original-Change-Id: Ic0d7c59404e870a7108ed64bbf3215fcc2d0973e Original-Signed-off-by: Lin Huang <hl@rock-chips.com> Original-Signed-off-by: Vadim Bendebury <vbendeb@chromium.org> Original-Reviewed-on: https://chromium-review.googlesource.com/351825 Reviewed-on: https://review.coreboot.org/15300 Tested-by: build bot (Jenkins) Reviewed-by: Furquan Shaikh <furquan@google.com>
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