We want to be able to easily change SDRAM clock rate for debugging
purposes. This patch adds configurations for 4 different clock rates.
Same configs are used for all rk3399 boards at 200, 666 and 800 MHz.
Kevin board does not run reliably at 666 MHz, an option for it is
added to run at 300 MHz, this option is available to Kevin only.
There is not much room left in the coreboot romstage section, this is
why the config file for 928 MHz is being added with this patch but is
not included in the code, one of the lower frequency options will have
to be dropped for the higher frequency option to be added.
BRANCH=none
BUG=chrome-os-partner:54144
TEST=run "stressapptest -M 1024 -s 3600" and pass on both kevin and
gru. Verified that on Kevin the firmware reports starting up
SDRAM at 300 MHz and on Gru at 800 MHz.
Change-Id: Ie24c1813d5a0e9f0f9bfc781cade9e28fb6eb2f1
Signed-off-by: Martin Roth <martinroth@chromium.org>
Original-Commit-Id: ef5e4551b79c3f0531f9af35491f2c593f8482f1
Original-Change-Id: I08bccd40147ad89d851b995a8aab4d2b6da8258a
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/353493
Original-Reviewed-by: Derek Basehore <dbasehore@chromium.org>
Reviewed-on: https://review.coreboot.org/15309
Tested-by: build bot (Jenkins)
Reviewed-by: Furquan Shaikh <furquan@google.com>
Update the DDR config and DRAM driver to allow running at up to
928MHz. Kevin config/clock rate are not being changed, but Gru now
runs at 928 MHz.
BRANCH=none
BUG=chrome-os-partner:51537
TEST=booted Kevin and Gru to Linux prompt. Ran stressapptest for 10 min on Gru,
Change-Id: I66c1a171d5c7d05b2878c7bc5eaa0d436c7a1be2
Signed-off-by: Martin Roth <martinroth@chromium.org>
Original-Commit-Id: 8baf0d82816a7ea1c4428e15caeefa2795d001f9
Original-Change-Id: I5e1d6d1025f10203da8f11afc3bbdf95f133c586
Original-Signed-off-by: Shunqian Zheng <zhengsq@rock-chips.com>
Original-Signed-off-by: Vadim Bendebury <vbendeb@chromium.org>
Original-Reviewed-on: https://chromium-review.googlesource.com/343984
Original-Reviewed-by: Stephen Barber <smbarber@chromium.org>
Reviewed-on: https://review.coreboot.org/15027
Tested-by: build bot (Jenkins)
Reviewed-by: Furquan Shaikh <furquan@google.com>
Add the sdram driver for rk3399. With this patch we can boot
into depthcharge.
This patch also include a config file for lpddr3-hynix-4GB
that generated bases on its datasheet.
Please refer to TRM V0.3 Part1 Chapter 9 for DMC.
BRANCH=none
BUG=chrome-os-partner:51537
TEST=boot to depthcharge on kevin
Change-Id: I2afcaa3b68dbad77a5fe677b835289b675ed2bef
Signed-off-by: Patrick Georgi <pgeorgi@chromium.org>
Original-Commit-Id: 5d777e29942057fb7237eefa34051d1f54b19405
Original-Change-Id: Ifa1fe98a7058869518757d50678a64620610d91d
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/332562
Reviewed-on: https://review.coreboot.org/14716
Tested-by: build bot (Jenkins)
Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
