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Cannot set GPMC_WAIT3 in mode 4 to high

Other Parts Discussed in Thread: DM3730

Hi,

We are working on DM3730 based custom board , on which we are configuring some pins as gpio. On measuring the voltage level , some of them are showing correct behaviour(1.8 volts for high).
But , when we are configuring GPMC_WAIT3 signal as gpio_65 in Mode4 in the kernel as well as u-boot ( as per the pad configuration register table : page 2462  of Rev N TRM) ,the voltage level for high is only 500mv . We have also tried to configure GPMC_WAIT3 signal in mode2 (UART4_rx) ,but then also we have observed same behavior.

the below line is copy pasted from TRM (showing the pad configuration register settings)

Register name                                                                     phy.addr           Mode 0          Mode 1                Mode 2        Mode 4      Mode 7
CONTROL_PADCONF_GPMC_WAIT2[31:16]    0x4800 20D0     gpmc_wait3     sys_ndmareq1      uart4_rx        gpio_65      safe_mode
                                             

Please let us know , why the above said are pins are behaving wrong. Kindly suggest a solution for this.