[U-Boot] [PATCH] sunxi: set the default CPUx frequency of H5 to 816MHz

Jagan Teki jagannadh.teki at gmail.com
Sat Dec 2 16:27:20 UTC 2017


On Mon, Nov 6, 2017 at 1:40 PM, Jagan Teki <jagannadh.teki at gmail.com> wrote:
> On Fri, Nov 3, 2017 at 10:00 PM, Maxime Ripard
> <maxime.ripard at free-electrons.com> wrote:
>> On Fri, Nov 03, 2017 at 02:21:51PM +0530, Jagan Teki wrote:
>>> On Thu, Nov 2, 2017 at 7:26 PM, Maxime Ripard
>>> <maxime.ripard at free-electrons.com> wrote:
>>> > On Wed, Nov 01, 2017 at 08:31:46AM +0800, Icenowy Zheng wrote:
>>> >> 在 2017-10-31 21:54,Maxime Ripard 写道:
>>> >> > On Tue, Oct 31, 2017 at 04:05:36PM +0800, icenowy at aosc.io wrote:
>>> >> > > 在 2017-10-31 15:57,Jagan Teki 写道:
>>> >> > > > On Tue, Oct 31, 2017 at 5:06 AM, Icenowy Zheng <icenowy at aosc.io> wrote:
>>> >> > > > > Some H5 boards are designed to start at 1.1V CPUx voltage (e.g. Nano
>>> >> > > > > Pi
>>> >> > > > > NEO2), which may not work properly at 1008MHz if the chip's quality is
>>> >> > > > > not so good.
>>> >> > > > >
>>> >> > > > > Lower the default CPUx frequency of H5 to 816MHz.
>>> >> > > > >
>>> >> > > > > Signed-off-by: Icenowy Zheng <icenowy at aosc.io>
>>> >> > > > > ---
>>> >> > > > >  arch/arm/mach-sunxi/Kconfig | 2 +-
>>> >> > > > >  1 file changed, 1 insertion(+), 1 deletion(-)
>>> >> > > > >
>>> >> > > > > diff --git a/arch/arm/mach-sunxi/Kconfig b/arch/arm/mach-sunxi/Kconfig
>>> >> > > > > index 09cfec6f57..1fededd0a3 100644
>>> >> > > > > --- a/arch/arm/mach-sunxi/Kconfig
>>> >> > > > > +++ b/arch/arm/mach-sunxi/Kconfig
>>> >> > > > > @@ -397,9 +397,9 @@ config SYS_CLK_FREQ
>>> >> > > > >         default 1008000000 if MACH_SUN5I
>>> >> > > > >         default 1008000000 if MACH_SUN6I
>>> >> > > > >         default 912000000 if MACH_SUN7I
>>> >> > > > > +       default 816000000 if MACH_SUN50I || MACH_SUN50I_H5
>>> >> > > > >         default 1008000000 if MACH_SUN8I

Applied to u-boot-sunxi/master


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