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 <sm...@web.de>
=2D--
Cc: Kever Yang <kever.y...@rock-chips.com>
Cc: u-boot@lists.denx.de
=2D--
arch/arm/dts/rk3399-rockpro64-u-boot.dtsi | 5 +++++
Reviewed-by: Kever Yang<kever.y...@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
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