How to change GPIO mode for LS1046A pb on Vxwork7

[Sally_Jay]

There are 4 serial configure on 1046 dts.

serial@21c0500 {

compatible = "fsl,ns16550", "ns16550a";

reg = <0x0 0x21c0500 0x0 0x100>;

interrupts = <0x56 0x0 0x4>;

interrupt-parent = <0x1>;

clocks = <0x6>;

status = "okay";

};

serial@21c0600 {

compatible = "fsl,ns16550", "ns16550a";

reg = <0x0 0x21c0600 0x0 0x100>;

interrupts = <0x56 0x0 0x4>;

interrupt-parent = <0x1>;

clocks = <0x6>;

status = "disabled";

};

serial@21d0500 {

compatible = "fsl,ns16550", "ns16550a";

reg = <0x0 0x21d0500 0x0 0x100>;

interrupts = <0x57 0x0 0x4>;

interrupt-parent = <0x1>;

clocks = <0x7>;

status = "disabled";

};

serial@21d0600 {

compatible = "fsl,ns16550", "ns16550a";

reg = <0x0 0x21d0600 0x0 0x100>;

interrupts = <0x57 0x0 0x4>;

interrupt-parent = <0x1>;

clocks = <0x7>;

status = "disabled";

};

Now I want to use the tx and rx of uart2 and uart4 to use GPIO mode which I can pull up/down the GPIO status manually.

for example,I want to change the GPIO1_19 20 21 22 to GPIO mode.

How can I do it?

[yipingwang · Accepted solution]

For Vxwork7 problem, please contact Wind River.

[Sally_Jay]

Is there any register to configure the GPIO mode?