The TPS65217C used on the boneblack defaults to 1.5v on startup for dcdc1_reg. While 1.35v ddr3 memory is actually used. This was discovered by a user during a schematic review of his beaglebone-black clone, a u-boot patch will also also be submitted.
Signed-off-by: Robert Nelson <[email protected]> CC: Tony Lindgren <[email protected]> CC: Vagrant Cascadian <[email protected]> --- arch/arm/boot/dts/am335x-boneblack.dts | 7 +++++++ 1 file changed, 7 insertions(+) diff --git a/arch/arm/boot/dts/am335x-boneblack.dts b/arch/arm/boot/dts/am335x-boneblack.dts index 901739f..e7c8999 100644 --- a/arch/arm/boot/dts/am335x-boneblack.dts +++ b/arch/arm/boot/dts/am335x-boneblack.dts @@ -15,6 +15,13 @@ compatible = "ti,am335x-bone-black", "ti,am335x-bone", "ti,am33xx"; }; +&dcdc1_reg { + /* TPS65217C defaults to 1.5v on powerup while 1.35v DDR3 is used */ + regulator-min-microvolt = <1350000>; + regulator-max-microvolt = <1350000>; + regulator-boot-on; +}; + &ldo3_reg { regulator-min-microvolt = <1800000>; regulator-max-microvolt = <1800000>; -- 2.1.1 -- To unsubscribe from this list: send the line "unsubscribe devicetree" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html
