Problem is fixed now,
have changed *.dts the following way (gpio3 set to no reset DDR3 Voltage enable is on gpio3.21 on our board, and PMIC setup removed is properly done in bootloader and only OPP100 is needed)
index 83c6abf..9c93bb7 100644 (file)
--- a/board-support/linux-3.12.10-ti2013.12.01/arch/arm/boot/dts/am335x-kno_txt.dts
+++ b/board-support/linux-3.12.10-ti2013.12.01/arch/arm/boot/dts/am335x-kno_txt.dts
@@ -84,11 +84,6 @@
status = "okay";
clock-frequency = <600000>;
- /* Set OPP100 (1.10V) for VDD core */
- wake-sequence = /bits/ 8 <
- 0x02 0x2d 0x25 0x2b /* Set VDD2 to 1.1V */
- >;
-
tps: tps@2d {
reg = <0x2d>;
};
@@ -263,3 +258,7 @@
&gpio0 {
ti,no-reset;
};
+
+&gpio3 {
+ ti,no-reset;
+};