arm64: dts: imx8mn: Adjust 1.2GHz OPP voltage to OD mode
authorAnson Huang <Anson.Huang@nxp.com>
Mon, 24 Feb 2020 02:07:40 +0000 (10:07 +0800)
committerShawn Guo <shawnguo@kernel.org>
Mon, 24 Feb 2020 07:52:05 +0000 (15:52 +0800)
According to latest datasheet Rev.0, 10/2019, there is restriction
as below:

"If VDD_SOC/GPU/DDR = 0.95V, then VDD_ARM must be >= 0.95V."

As by default SoC is running at OD mode(VDD_SOC = 0.95V), so
VDD_ARM 1.2GHz OPP's voltage should be increased to 0.95V.

Signed-off-by: Anson Huang <Anson.Huang@nxp.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
arch/arm64/boot/dts/freescale/imx8mn.dtsi

index c98a376..f277572 100644 (file)
 
                opp-1200000000 {
                        opp-hz = /bits/ 64 <1200000000>;
-                       opp-microvolt = <850000>;
+                       opp-microvolt = <950000>;
                        opp-supported-hw = <0xb00>, <0x7>;
                        clock-latency-ns = <150000>;
                        opp-suspend;