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rockchip/rk3399 & gru/kevin: support sdram 933MHz on kevin

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We should be running faster.  Faster = better.

BRANCH=None
BUG=chrome-os-partner:54873
TEST=Boot; stressapptest -M 1028 -s 10000

Change-Id: I7f855960af3142efb71cf9c15edd1da66084e9d8
Signed-off-by: Martin Roth <martinroth@chromium.org>
Original-Commit-Id: 51bfd2abb1aba839bd0b5b85e9e918f3cc4fd94d
Original-Change-Id: Iec9343763c1a5a5344959b6e8c4dee8079cf8a20
Original-Signed-off-by: Lin Huang <hl@rock-chips.com>
Original-Reviewed-on: https://chromium-review.googlesource.com/362822
Original-Reviewed-by: Douglas Anderson <dianders@chromium.org>
Original-Reviewed-by: Julius Werner <jwerner@chromium.org>
Reviewed-on: https://review.coreboot.org/16241
Tested-by: build bot (Jenkins)
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
Reviewed-by: Furquan Shaikh <furquan@google.com>
This commit is contained in:
Lin Huang
2016-07-25 10:06:09 +08:00
committed by Martin Roth
parent b18a6665df
commit ba2b63a20a
4 changed files with 1573 additions and 4 deletions
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2
src/soc/rockchip/rk3399/sdram.c
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@@ -992,7 +992,7 @@ void sdram_init(const struct rk3399_sdram_params *sdram_params)
printk(BIOS_INFO, "Starting SDRAM initialization...\n");
if ((dramtype == DDR3 && ddr_freq > 800*MHz) ||
(dramtype == LPDDR3 && ddr_freq > 928*MHz) ||
(dramtype == LPDDR3 && ddr_freq > 933*MHz) ||
(dramtype == LPDDR4 && ddr_freq > 800*MHz))
die("SDRAM frequency is to high!");