Re: [PATCH] ARM: dts: meson8: Use a higher default GPU clock frequency
From: Neil Armstrong <hidden>
Date: 2021-07-26 08:13:21
Also in:
linux-amlogic, lkml
From: Neil Armstrong <hidden>
Date: 2021-07-26 08:13:21
Also in:
linux-amlogic, lkml
Hi, On Sun, 11 Jul 2021 23:40:23 +0200, Martin Blumenstingl wrote:
We are seeing "imprecise external abort (0x1406)" errors during boot (which then cause the whole board to hang) on Meson8 (but not Meson8m2). These are observed while trying to access the GPU's registers when the MALI clock is running at it's default setting of 24MHz. The 3.10 vendor kernel uses 318.75MHz as "default" GPU frequency. Using that makes the "imprecise external aborts" go away. Add the assigned-clocks and assigned-clock-rates properties to also bump the MALI clock to 318.75MHz before accessing any of it's registers.
Thanks, Applied to https://git.kernel.org/pub/scm/linux/kernel/git/amlogic/linux.git (for-next) [1/1] ARM: dts: meson8: Use a higher default GPU clock frequency https://git.kernel.org/amlogic/c/44cf630bcb8c5ec78125805c9447dd5766792224 -- Neil _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel