AM62A3-Q1: Unable to boot custom Hardware

Part Number: AM62A3-Q1
Other Parts Discussed in Thread: AM62A3

Tool/software:

Hello TI,
  I am trying to boot up my custom hardware, with AM62A3 processor but unable to get the MMC1_CLK (E22). also unable to get vddshv5  and vpp_1v8 supply. 
The only difference between my custom hardware and the evm board(AM62A Starter Kit) is that i am using B19 pin as a gpio for SD-CARD Load Switch enable. That is instead of mapping MMC1_SD_EN pin to the IO expander, we have mapped it to the B19 pin. Attaching the part of Device tree configurations for your reference.

 &sdhci1 {
	 /* SD/MMC */
	 status = "okay";
	 vmmc-supply = <&vdd_mmc1>;
	 vqmmc-supply = <&vddshv_sdio>;
	 pinctrl-names = "default";
	 pinctrl-0 = <&main_mmc1_pins_default>; 
	 ti,driver-strength-ohm = <50>;
	 disable-wp;
 };
	 vdd_mmc1: regulator-3 {
		 /* TPS22918DBVR */
		 compatible = "regulator-fixed";
		 regulator-name = "vdd_mmc1";
		 regulator-min-microvolt = <3300000>;
		 regulator-max-microvolt = <3300000>;
		 regulator-boot-on;
		 enable-active-high;
		 pinctrl-names = "default";
		 pinctrl-0 = <&gpio_3v3_pins_default>; 
		/* gpio = <&exp1 3 GPIO_ACTIVE_HIGH>; -  orginal */
		 gpio = <&main_gpio1 8 GPIO_ACTIVE_HIGH>; // Changes done
	 };
 
 
 &main_pmx0 {
	gpio_3v3_pins_default: gpio_3v3-default-pins {

		pinctrl-single,pins = <
		 	AM62AX_IOPAD(0x0198, PIN_OUTPUT, 7) /* (B19) MCASP0_AXR2.GPIO1_8  //INPUT */
		>;
	};
	}