[U-Boot] [PATCH v2] rockchip: rk3399: Initialize CPU B clock.

Philipp Tomsich philipp.tomsich at theobroma-systems.com
Fri Nov 30 20:48:19 UTC 2018


Christoph,

On 30.11.2018, at 20:32, Christoph Muellner <christoph.muellner at theobroma-systems.com> wrote:
> 
> This patch sets the PLL of CPU cluster B (BPLL) to 600 MHz.
> This decreases the boot time of Linux 4.19 by about 8%.
> 
> The 600 MHz are inspired by the 600 MHz used for LPLL initialization
> (came in with commit 9f636a249c1).
> 
> Tested on RK3399-Q7 on Haikou base board.
> 
> Changes since v1:
> 
> * Set clk_core_b parent to BPLL instead of LPLL.
>  Kudos to Mark Kettenis <mark.kettenis at xs4all.nl> for spotting this.

Please use patman in the future (or format this as a note), so it can automatically
get supressed when applying.  For this specific instance, I will hand-edit when
applying…

Thanks,
Philipp.



More information about the U-Boot mailing list