From: H. Nikolaus Schaller Date: Mon, 14 Nov 2016 11:55:15 +0000 (+0100) Subject: ARM: dts: omap5: board-common: fix wrong SMPS6 (VDD-DDR3) voltage X-Git-Url: http://git.cdn.openwrt.org/?a=commitdiff_plain;h=1bc2f5fac34535aeb3878ce32a762a221be7a851;p=openwrt%2Fstaging%2Fblogic.git ARM: dts: omap5: board-common: fix wrong SMPS6 (VDD-DDR3) voltage DDR3L is usually specified as JEDEC standard 1.35V(1.28V~1.45V) & 1.5V(1.425V~1.575V) Therefore setting smps6 regulator to 1.2V is definitively below minimum. It appears that real world chips are more forgiving than data sheets indicate, but let's set the regulator right. Note: a board that uses other voltages (DDR with 1.5V) can overwrite by referencing &smps6_reg. Signed-off-by: H. Nikolaus Schaller Signed-off-by: Tony Lindgren --- diff --git a/arch/arm/boot/dts/omap5-board-common.dtsi b/arch/arm/boot/dts/omap5-board-common.dtsi index 60a33c4b7b82..4caadb253249 100644 --- a/arch/arm/boot/dts/omap5-board-common.dtsi +++ b/arch/arm/boot/dts/omap5-board-common.dtsi @@ -476,8 +476,8 @@ smps6_reg: smps6 { /* VDD_DDR3 - over VDD_SMPS6 */ regulator-name = "smps6"; - regulator-min-microvolt = <1200000>; - regulator-max-microvolt = <1200000>; + regulator-min-microvolt = <1350000>; + regulator-max-microvolt = <1350000>; regulator-always-on; regulator-boot-on; };