SD卡启动，之前正常，后来出现下面LOG，启动不起来，请协助分析一下原因
U-Boot 2021.01-g53e79d0e89 (Sep 09 2022 - 02:47:24 +0000)
SoC: J721E SR2.0
Model: Texas Instruments K3 J721E SoC
DRAM: 4 GiB
Flash: 0 Bytes
MMC: sdhci@4f80000: 0, sdhci@4fb0000: 1
Loading Environment from MMC... OK
In: serial@2800000
Out: serial@2800000
Err: serial@2800000
Net: No ethernet found.
Hit any key to stop autoboot: 0
cadence_spi spi@47040000: Can't get reset: -2
k3-navss-ringacc ringacc@2b800000: Ring Accelerator probed rings:286, gp-rings[96,20] sci-dev-id:235
k3-navss-ringacc ringacc@2b800000: dma-ring-reset-quirk: disabled
SF: Detected mt35xu512aba with page size 256 Bytes, erase size 128 KiB, total 64 MiB
switch to partitions #0, OK
mmc0(part 0) is current device
SD/MMC found on device 0
** Unrecognized filesystem type **
** Unrecognized filesystem type **
** No partition table - mmc 0 **
k3_r5f_rproc r5f@41000000: Core 1 is already in use. No rproc commands work
k3_r5f_rproc r5f@41400000: Core 2 is already in use. No rproc commands work
** No partition table - mmc 0 **
** No partition table - mmc 0 **
** No partition table - mmc 0 **
** No partition table - mmc 0 **
** No partition table - mmc 0 **
** No partition table - mmc 0 **
** No partition table - mmc 0 **
** No partition table - mmc 0 **
** No partition table - mmc 0 **
libfdt fdt_check_header(): FDT_ERR_BADMAGIC
No FDT memory address configured. Please configure
the FDT address via "fdt addr <address>" command.
Aborting!
** No partition table - mmc 0 **
Bad Linux ARM64 Image magic!
