From mboxrd@z Thu Jan 1 00:00:00 1970 From: Caesar Wang Subject: [PATCH 2/2] ARM: dts: rockchip: change the correct voltage range for rk3288 evb board Date: Wed, 2 Dec 2015 19:12:21 +0800 Message-ID: <1449054741-25354-2-git-send-email-wxt@rock-chips.com> References: <1449054741-25354-1-git-send-email-wxt@rock-chips.com> Return-path: In-Reply-To: <1449054741-25354-1-git-send-email-wxt@rock-chips.com> Sender: linux-kernel-owner@vger.kernel.org To: Heiko Stuebner , linux-arm-kernel@lists.infradead.org Cc: linux-rockchip@lists.infradead.org, Caesar Wang , Rob Herring , Pawel Moll , Mark Rutland , Ian Campbell , Kumar Gala , Russell King , devicetree@vger.kernel.org, linux-kernel@vger.kernel.org List-Id: devicetree@vger.kernel.org In general, the logic voltage is affected by ddr frequency factors. We should fix the correct voltage range since assuemd that we have the ddr frequency driver in mainline. AFAIK, the 1.8v voltage is used by the SD3.0 card. Signed-off-by: Caesar Wang --- arch/arm/boot/dts/rk3288-evb-act8846.dts | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) diff --git a/arch/arm/boot/dts/rk3288-evb-act8846.dts b/arch/arm/boot/dts/rk3288-evb-act8846.dts index 43949a6..2797f32 100644 --- a/arch/arm/boot/dts/rk3288-evb-act8846.dts +++ b/arch/arm/boot/dts/rk3288-evb-act8846.dts @@ -119,8 +119,8 @@ vdd_log: REG3 { regulator-name = "VDD_LOG"; - regulator-min-microvolt = <1000000>; - regulator-max-microvolt = <1000000>; + regulator-min-microvolt = <700000>; + regulator-max-microvolt = <1500000>; regulator-always-on; }; @@ -133,7 +133,7 @@ vccio_sd: REG5 { regulator-name = "VCCIO_SD"; - regulator-min-microvolt = <3300000>; + regulator-min-microvolt = <1800000>; regulator-max-microvolt = <3300000>; regulator-always-on; }; -- 1.9.1