你好：
请问在uboot怎么使能mmc3？我在uboot设备树使能emmc，uboot就会卡住了：
CPU : AM335X-GP rev 2.1
Model: SE MYS-3358
DRAM: 256 MiB
WDT: Started with servicing (60s timeout)
NAND: 0 MiB
MMC:
一直停留在这个地方。
下面是我的设备树配置：
&mmc3 {
dmas = <&edma 12 0
&edma 13 0>;
dma-names = "tx", "rx";
status = "okay";
//vmmc-supply = <&wlan_en_reg>;
vmmc-supply = <&vdd_3v3b>;
bus-width = <4>;
pinctrl-names = "default";
pinctrl-0 = <&mmc3_pins_myir &wlan_pins_myir>;
ti,non-removable;
ti,needs-special-hs-handling;
cap-power-off-card;
keep-power-in-suspend;
#address-cells = <1>;
#size-cells = <0>;
wlcore: wlcore@0 {
compatible = "ti,wl1835";
reg = <2>;
interrupt-parent = <&gpio0>;
interrupts = <23 IRQ_TYPE_LEVEL_HIGH>;
};
};
如果把status = "okay";改成status = "disabled";则可以正常启动，请问这是什么原因？
