diff mbox

[1/2] arm64: dts: rockchip: change the correct voltage range for rk3368 evb board

Message ID 1449054741-25354-1-git-send-email-wxt@rock-chips.com (mailing list archive)
State New, archived
Headers show

Commit Message

Caesar Wang Dec. 2, 2015, 11:12 a.m. UTC
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 <wxt@rock-chips.com>
---

 arch/arm64/boot/dts/rockchip/rk3368-evb-act8846.dts | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

Comments

Heiko Stuebner Dec. 11, 2015, 1:04 p.m. UTC | #1
Hi Caesar,

Am Mittwoch, 2. Dezember 2015, 19:12:20 schrieb Caesar Wang:
> 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 <wxt@rock-chips.com>

applied both patches to the 32 and 64 bit dts branches for 4.5


Thanks
Heiko
diff mbox

Patch

diff --git a/arch/arm64/boot/dts/rockchip/rk3368-evb-act8846.dts b/arch/arm64/boot/dts/rockchip/rk3368-evb-act8846.dts
index eed6d3c..8a5275f 100644
--- a/arch/arm64/boot/dts/rockchip/rk3368-evb-act8846.dts
+++ b/arch/arm64/boot/dts/rockchip/rk3368-evb-act8846.dts
@@ -104,8 +104,8 @@ 
 
 			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;
 			};
 
@@ -118,7 +118,7 @@ 
 
 			vccio_sd: REG5 {
 				regulator-name = "VCCIO_SD";
-				regulator-min-microvolt = <3300000>;
+				regulator-min-microvolt = <1800000>;
 				regulator-max-microvolt = <3300000>;
 				regulator-always-on;
 			};