[ 1.304107] ThumbEE CPU extension supported.
[ 1.308624] mux: Failed to setup hwmod io irq -22
[ 1.314056] Power Management for AM33XX family
[ 1.318878] Trying to load am335x-pm-firmware.bin (60 secs timeout)
[ 1.325561] Copied the M3 firmware to UMEM
[ 1.330383] sr_init: platform driver register failed
[ 1.338653] clock: disabling unused clocks to save power
[ 1.356872] drivers/rtc/hctosys.c: unable to open rtc device (rtc0)
[ 1.363922] Waiting for root device /dev/mmcblk0p2...
SD 卡启动时一直停在这里,SD 卡的分区正确,rootfs 也可以正常工作,用同一张 SD 卡,相同的 rootfs 可以成功启动别的 AM335x 但是启动 新板子的时候就会遇到这种情况。之前的板子用的是 DDR2 ,现在这块新板子用的是 DDR3,关于 DDR 的配置我已经在 u-boot 和 kernel 中修改过了。目前就停留在 [ 1.363922] Waiting for root device /dev/mmcblk0p2... 求帮助,谢谢。