From: "Ondřej Jirman" <megi@xff.cz>
To: u-boot@lists.denx.de
Subject: [U-Boot] [linux-sunxi] Re: [PATCH] sunxi: set the default CPUx frequency of H5 to 816MHz
Date: Wed, 01 Nov 2017 03:10:24 +0100 [thread overview]
Message-ID: <1509502224.27172.3.camel@xff.cz> (raw)
In-Reply-To: <62fd699f8fa09a1ca360014cf8fa35b9@aosc.io>
Hi,
Icenowy Zheng píše v St 01. 11. 2017 v 08:31 +0800:
>
> And according to the Orange Pi PC2 and Prime schematics, they both
> start at 1.1V. (The Prime schematics even says "For H5 adjust
> VDD-CPUX to 1.1V).
>
Orange Pi PC2 starts at the same voltage as Orange Pi PC. That is at
1.308V.
It can be calculated from 0.6×(1+11.8÷10) as per the values of Ru1/Ru2
resistors in the schema. It is also my experience of working with these
boards and writing the sy8106a driver.
regards,
Ondrej
> >
> > There's no need to enforce a SoC-wide change.
> >
> > Maxime
>
>
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next prev parent reply other threads:[~2017-11-01 2:10 UTC|newest]
Thread overview: 15+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-10-30 23:36 [U-Boot] [PATCH] sunxi: set the default CPUx frequency of H5 to 816MHz Icenowy Zheng
2017-10-31 7:57 ` Jagan Teki
2017-10-31 8:05 ` icenowy at aosc.io
2017-10-31 8:53 ` Jagan Teki
2017-10-31 9:08 ` Icenowy Zheng
2017-10-31 13:54 ` Maxime Ripard
2017-11-01 0:31 ` Icenowy Zheng
2017-11-01 2:10 ` Ondřej Jirman [this message]
2017-11-01 2:20 ` [U-Boot] [linux-sunxi] " Ondřej Jirman
2017-11-01 9:16 ` Jagan Teki
2017-11-02 13:56 ` [U-Boot] " Maxime Ripard
2017-11-03 8:51 ` Jagan Teki
2017-11-03 16:30 ` Maxime Ripard
2017-11-06 8:10 ` Jagan Teki
2017-12-02 16:27 ` Jagan Teki
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