| Message ID | 20191107111122.13136-2-smoch@web.de |
|---|---|
| State | Accepted |
| Commit | f210cbc1f3d4f84baa595d83933369b4d6a529ea |
| Delegated to: | Kever Yang |
| Headers | show |
| Series | [U-Boot,1/2] arm: dts: rk3399-rockpro64: sync dts from linux kernel | expand |
On 2019/11/7 下午7:11, Soeren Moch wrote: > The rk3399 VD_CENTER voltage domain is not subject to dynamic voltage > scaling. So the regulator reset voltage of 0.9V is used on this board. > Let u-boot initialize the center voltage to 0.95V as it is done for the > VD_LOGIC domain. This avoids instability and occasional linux kernel > Opses on this board. > > Signed-off-by: Soeren Moch <smoch@web.de> > =2D-- > Cc: Kever Yang <kever.yang@rock-chips.com> > Cc: u-boot@lists.denx.de > =2D-- > arch/arm/dts/rk3399-rockpro64-u-boot.dtsi | 5 +++++ Reviewed-by: Kever Yang<kever.yang@rock-chips.com> Thanks, - Kever > 1 file changed, 5 insertions(+) > > diff --git a/arch/arm/dts/rk3399-rockpro64-u-boot.dtsi b/arch/arm/dts/rk33= > 99-rockpro64-u-boot.dtsi > index a073ea25f5..4648513ea9 100644 > =2D-- a/arch/arm/dts/rk3399-rockpro64-u-boot.dtsi > +++ b/arch/arm/dts/rk3399-rockpro64-u-boot.dtsi > @@ -11,6 +11,11 @@ > }; > }; > > +&vdd_center { > + regulator-min-microvolt =3D <950000>; > + regulator-max-microvolt =3D <950000>; > +}; > + > &vdd_log { > regulator-init-microvolt =3D <950000>; > }; > =2D- > 2.17.1 > >
On 2019/11/8 上午11:23, Kever Yang wrote: > > On 2019/11/7 下午7:11, Soeren Moch wrote: >> The rk3399 VD_CENTER voltage domain is not subject to dynamic voltage >> scaling. So the regulator reset voltage of 0.9V is used on this board. >> Let u-boot initialize the center voltage to 0.95V as it is done for the >> VD_LOGIC domain. This avoids instability and occasional linux kernel >> Opses on this board. >> >> Signed-off-by: Soeren Moch <smoch@web.de> >> =2D-- >> Cc: Kever Yang <kever.yang@rock-chips.com> >> Cc: u-boot@lists.denx.de >> =2D-- >> arch/arm/dts/rk3399-rockpro64-u-boot.dtsi | 5 +++++ > > Reviewed-by: Kever Yang<kever.yang@rock-chips.com> > Applied to u-boot-rockchip master . Thanks, - Kever > Thanks, > - Kever >> 1 file changed, 5 insertions(+) >> >> diff --git a/arch/arm/dts/rk3399-rockpro64-u-boot.dtsi >> b/arch/arm/dts/rk33= >> 99-rockpro64-u-boot.dtsi >> index a073ea25f5..4648513ea9 100644 >> =2D-- a/arch/arm/dts/rk3399-rockpro64-u-boot.dtsi >> +++ b/arch/arm/dts/rk3399-rockpro64-u-boot.dtsi >> @@ -11,6 +11,11 @@ >> }; >> }; >> >> +&vdd_center { >> + regulator-min-microvolt =3D <950000>; >> + regulator-max-microvolt =3D <950000>; >> +}; >> + >> &vdd_log { >> regulator-init-microvolt =3D <950000>; >> }; >> =2D- >> 2.17.1 >> >> > > > _______________________________________________ > U-Boot mailing list > U-Boot@lists.denx.de > https://lists.denx.de/listinfo/u-boot
diff --git a/arch/arm/dts/rk3399-rockpro64-u-boot.dtsi b/arch/arm/dts/rk3399-rockpro64-u-boot.dtsi index a073ea25f5..4648513ea9 100644 --- a/arch/arm/dts/rk3399-rockpro64-u-boot.dtsi +++ b/arch/arm/dts/rk3399-rockpro64-u-boot.dtsi @@ -11,6 +11,11 @@ }; }; +&vdd_center { + regulator-min-microvolt = <950000>; + regulator-max-microvolt = <950000>; +}; + &vdd_log { regulator-init-microvolt = <950000>; };
The rk3399 VD_CENTER voltage domain is not subject to dynamic voltage scaling. So the regulator reset voltage of 0.9V is used on this board. Let u-boot initialize the center voltage to 0.95V as it is done for the VD_LOGIC domain. This avoids instability and occasional linux kernel Opses on this board. Signed-off-by: Soeren Moch <smoch@web.de> --- Cc: Kever Yang <kever.yang@rock-chips.com> Cc: u-boot@lists.denx.de --- arch/arm/dts/rk3399-rockpro64-u-boot.dtsi | 5 +++++ 1 file changed, 5 insertions(+) -- 2.17.1