coreboot/src/soc
Julius Werner c230585f43 rk3288: Increase PD_BUS_ACLK (SRAM clock) to improve boot speed
This patch doubles the ACLK peripheral clock for the PD_BUS power domain
to 297MHz, which is the closest to the maximum of 300MHz we can reach by
dividing GPLL. This frequency directly translates into SRAM speed, so
maximizing it has a huge impact on boot speed (especially with the lack
of SRAM caching).

BUG=chrome-os-partner:32987
TEST=Booted Veyron_Pinky. Hacked timestamps into vboot and confirmed
that the (visibly) long signature verification times are nearly halved.

Change-Id: I3f19eaa3d97dcc6235d820c71eb5edf2ae87d647
Signed-off-by: Julius Werner <jwerner@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/224524
Trybot-Ready: Doug Anderson <dianders@chromium.org>
Reviewed-by: David Hendricks <dhendrix@chromium.org>
2014-12-09 21:10:23 +00:00
..
imgtec CBFS: Automate ROM image layout and remove hardcoded offsets 2014-12-03 06:09:54 +00:00
intel broadwell: Fix incorrect SATA port map mask 2014-12-06 02:34:32 +00:00
marvell CBFS: Automate ROM image layout and remove hardcoded offsets 2014-12-03 06:09:54 +00:00
nvidia t132: Add I2S1 support to funit 2014-12-09 02:07:07 +00:00
qualcomm storm: add ipq8064 blobs to the CBFS 2014-12-09 02:07:12 +00:00
rockchip rk3288: Increase PD_BUS_ACLK (SRAM clock) to improve boot speed 2014-12-09 21:10:23 +00:00
samsung CBFS: Automate ROM image layout and remove hardcoded offsets 2014-12-03 06:09:54 +00:00
Kconfig cosmos: add template for soc and board files 2014-10-09 20:44:46 +00:00
Makefile.inc cosmos: add template for soc and board files 2014-10-09 20:44:46 +00:00