Commit 593372c1 authored by Peng Fan's avatar Peng Fan Committed by Jason Liu
Browse files

MLK-16268 arm: dts: 8qxp: add delay-us for usdhc2



Measured signal using oscilloscope.
Add startup delay and off-on-delay-us to make usdhc2 vmmc
supply work properly. Otherwise, the delay between power
off/on is short and power actully not off, then card report
S18A as 0 and could not switch voltage to 1.8V.
Signed-off-by: default avatarPeng Fan <peng.fan@nxp.com>
parent 1d01cec0
...@@ -51,7 +51,8 @@ ...@@ -51,7 +51,8 @@
regulator-max-microvolt = <3000000>; regulator-max-microvolt = <3000000>;
gpio = <&gpio4 19 GPIO_ACTIVE_HIGH>; gpio = <&gpio4 19 GPIO_ACTIVE_HIGH>;
enable-active-high; enable-active-high;
off-on-delay-us = <20000>; startup-delay-us = <300>;
off-on-delay-us = <3500>;
}; };
}; };
}; };
...@@ -421,4 +422,4 @@ ...@@ -421,4 +422,4 @@
&usb2 { &usb2 {
status = "okay"; status = "okay";
}; };
\ No newline at end of file
...@@ -48,6 +48,8 @@ ...@@ -48,6 +48,8 @@
regulator-max-microvolt = <3000000>; regulator-max-microvolt = <3000000>;
gpio = <&gpio4 19 GPIO_ACTIVE_HIGH>; gpio = <&gpio4 19 GPIO_ACTIVE_HIGH>;
enable-active-high; enable-active-high;
startup-delay-us = <100>;
off-on-delay-us = <12000>;
}; };
}; };
......
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