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04.03.00.05sdk版本中emmc未识别

Other Parts Discussed in Thread: AM3354

在移植了04.03.00.05版本的sdk后我的am3354板卡无法识别到emmc了,追踪内核发现是ret = omap_hsmmc_reg_get(host);函数中

ret = PTR_ERR(mmc->supply.vmmc);
if ((ret != -ENODEV) && host->dev->of_node)
return ret;

这个位置直接返回了,不知道这个vmmc的作用,就在设备树中屏蔽了这个vmmc-supply,之后驱动prob函数流程也走完了

mmc_add_host()的执行结果也是成功的,但是系统启动后/dev/目录下没有mmc相关的东西,请问该如何操作?