The Allwinner A64 SoC is known[1] to have an unstable architectural
timer, which manifests itself most obviously in the time jumping forward
a multiple of 95 years[2][3]. This coincides with 2^56 cycles at a
timer frequency of 24 MHz, implying that the time went slightly backward
(and this was
This is the third version of a patch series to fix system clock jumps
and other timer instability on the Allwinner A64 SoC. It has now been
tested for a week, and I've received no reports of date jumps with this
version. So this is, as far as I can tell, a complete workaround.
See the commit
As instability in the architectural timer has been observed on multiple
devices using this SoC, inluding the Pine64 and the Orange Pi Win,
enable the workaround in the SoC's device tree.
Acked-by: Maxime Ripard
Signed-off-by: Samuel Holland
---
arch/arm64/boot/dts/allwinner/sun50i-a64.dtsi | 1
On Sat, Jan 12, 2019 at 10:13 PM Maxime Ripard
wrote:
>
> On Wed, Jan 09, 2019 at 06:57:57PM +0530, Jagan Teki wrote:
> > On Tue, Jan 8, 2019 at 2:28 PM Maxime Ripard
> > wrote:
> > >
> > > On Mon, Jan 07, 2019 at 08:48:21PM +0530, Jagan Teki wrote:
> > > > On Mon, Jan 7, 2019 at 7:42 PM Maxime
I've tried to apply this patch in a hope to get the thermal sensor working
but things got hairy, can anyone please explain what is wrong with this
patch:
https://patchwork.kernel.org/patch/10555615/
Warnings:
DTC arch/arm64/boot/dts/allwinner/sun50i-a64-bananapi-m64.dtb
On Wed, Jan 09, 2019 at 06:57:57PM +0530, Jagan Teki wrote:
> On Tue, Jan 8, 2019 at 2:28 PM Maxime Ripard
> wrote:
> >
> > On Mon, Jan 07, 2019 at 08:48:21PM +0530, Jagan Teki wrote:
> > > On Mon, Jan 7, 2019 at 7:42 PM Maxime Ripard
> > > wrote:
> > > >
> > > > On Fri, Dec 21, 2018 at
I'm trying to troubleshoot the Alpine Linux kernel not booting on my sunxi
boards (same issue with Cubieboard A10 and Orange Pi Plus H3).
Alpine is using the stock mainline kernel (currently version 4.19.14). I can
successfully build a working kernel with these sources using the default
I'm trying to troubleshoot the Alpine Linux kernel not booting on my sunxi
boards (same issue with Cubieboard A10 and Orange Pi Plus H3).
Alpine is using the stock mainline kernel (currently version 4.19.14). I can
successfully build a working kernel with these sources using the default
I'm trying to troubleshoot the Alpine Linux kernel not booting on my sunxi
boards (same issue with Cubieboard A10 and Orange Pi Plus H3).
Alpine is using the stock mainline kernel (currently version 4.19.14). I
can successfully build a working kernel with these sources using the
default
Dne sobota, 12. januar 2019 ob 02:56:11 CET je Chen-Yu Tsai napisal(a):
> On Sat, Jan 12, 2019 at 1:30 AM Jernej Skrabec
wrote:
> > A64 IR is compatible with A13, so add A64 compatible with A13 as a
> > fallback.
>
> We ask people to add the SoC-specific compatible as a contigency,
> in case
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