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> |
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