From mboxrd@z Thu Jan 1 00:00:00 1970 From: Soeren Moch Date: Thu, 7 Nov 2019 12:11:22 +0100 Subject: [U-Boot] [PATCH 2/2] arm: dts: rk3399-rockpro64: slightly increase center voltage In-Reply-To: <20191107111122.13136-1-smoch@web.de> References: <20191107111122.13136-1-smoch@web.de> Message-ID: <20191107111122.13136-2-smoch@web.de> List-Id: MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit To: u-boot@lists.denx.de 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 --- Cc: Kever Yang Cc: u-boot at lists.denx.de --- arch/arm/dts/rk3399-rockpro64-u-boot.dtsi | 5 +++++ 1 file changed, 5 insertions(+) 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>; }; -- 2.17.1