当我根据https://wiki.radxa.com/Rockpi4/install/NVME中的步骤进行操作时，sudo apt-get install -y rockpi4b-rk-u-boot-latest并修改 /boot/hw_intfc.conf，reboot机器后，机器一直卡在starting kernel处，log如下：
dtoverlay number: 0, name:/overlays/spi1-flash.dtbo
hw_conf.valid = 1
hw_conf.pwm0 = 0
hw_conf.pwm1 = 0
hw_conf.uart2 = 0
hw_conf.uart4 = 0
hw_conf.spi1 = 1
hw_conf.spi2 = 0
hw_conf.i2c2 = 0
hw_conf.i2c6 = 0
hw_conf.i2c7 = 0
hw_conf.dts_overlay_count = 1
hw_conf.dts_overlay[0] = /overlays/spi1-flash.dtbo
1: kernel-4.4.154-115-rockchip-g00fccd37c63c
Retrieving file: /initrd.img-4.4.154-115-rockchip-g00fccd37c63c
reading /initrd.img-4.4.154-115-rockchip-g00fccd37c63c
7414977 bytes read in 326 ms (21.7 MiB/s)
Retrieving file: /vmlinuz-4.4.154-115-rockchip-g00fccd37c63c
reading /vmlinuz-4.4.154-115-rockchip-g00fccd37c63c
20371464 bytes read in 885 ms (22 MiB/s)
append: earlyprintk console=ttyFIQ0,1500000n8 rw init=/sbin/init rootfstype=ext4 rootwait root=UUID=8f774012-d27d-4050-ba66-60c0b08d099b console=ttyS2,1500000n8
Retrieving file: /dtbs/4.4.154-115-rockchip-g00fccd37c63c/rockchip/rk3399-rock-pi-4b.dtb
reading /dtbs/4.4.154-115-rockchip-g00fccd37c63c/rockchip/rk3399-rock-pi-4b.dtb
94389 bytes read in 21 ms (4.3 MiB/s)
fdt addr 0000000008300000
fdt magic number edfe0dd0
fdt size 1048576
merge_dts_overlay
Retrieving file: /overlays/spi1-flash.dtbo
reading /overlays/spi1-flash.dtbo
797 bytes read in 8 ms (96.7 KiB/s)
overlay dtb(0x0000000008200000) is valid
fdt_overlay_apply 0000000008300000 0000000008200000
Flattened Device Tree blob at 08300000
Booting using the fdt blob at 0x8300000
Loading Ramdisk to e96b1000, end e9dc34c1 … OK
Loading Device Tree to 00000000e95ae000, end 00000000e96b0fff … OK
Adding bank: 0x00200000 - 0xf8000000 (size: 0xf7e00000)
Total: 7808.880 ms
Starting kernel …