From: "Angus Ainslie (Purism)" <angus@xxxxxxxx> Add a simple-battery with default power capacity Discharge curve comes from the panasonic NCR18650B datasheet https://www.batteryspace.com/prod-specs/NCR18650B.pdf Signed-off-by: Angus Ainslie (Purism) <angus@xxxxxxxx> --- .../dts/freescale/imx8mq-librem5-devkit.dts | 17 +++++++++++++++++ 1 file changed, 17 insertions(+) diff --git a/arch/arm64/boot/dts/freescale/imx8mq-librem5-devkit.dts b/arch/arm64/boot/dts/freescale/imx8mq-librem5-devkit.dts index 6a8f6cee96cf..4957acc512d5 100644 --- a/arch/arm64/boot/dts/freescale/imx8mq-librem5-devkit.dts +++ b/arch/arm64/boot/dts/freescale/imx8mq-librem5-devkit.dts @@ -26,6 +26,22 @@ power-supply = <®_22v4_p>; }; + bat: battery { + compatible = "simple-battery"; + voltage-min-design-microvolt = <3000000>; + voltage-max-design-microvolt = <4192000>; + energy-full-design-microwatt-hours = <11700000>; + charge-full-design-microamp-hours = <3250000>; + precharge-current-microamp = <130000>; + charge-term-current-microamp = <66000>; + constant-charge-current-max-microamp = <1600000>; + constant-charge-voltage-max-microvolt = <4200000>; + factory-internal-resistance-micro-ohms = <250000>; + ocv-capacity-celsius = <25>; + ocv-capacity-table-0 = <4192000 100>, <3750000 85>, <3650000 68>, + <3500000 51>, <3400000 34>, <3250000 17>, <3000000 0>; + }; + chosen { stdout-path = &uart1; }; @@ -480,6 +496,7 @@ ti,minimum-sys-voltage = <3000000>; /* 3V */ ti,boost-voltage = <5000000>; /* 5V */ ti,boost-max-current = <50000>; /* 50mA */ + monitored-battery = <&bat>; }; }; -- 2.20.1
