SDHCI: problem of RV_BOOT.bin run on pynq

[徐天宇]

When I run the RV_BOOT.bin, which is generated by riscv-pk with
linux-5.9.4 as payload, on xilinx pynq-z2, I met the problem below:

mmc0: Timeout waiting for hardware cmd interrupt.
mmc0: sdhci: ============ SDHCI REGISTER DUMP ===========
mmc0: sdhci: Sys addr:  0x00000000 | Version:  0x00008901
mmc0: sdhci: Blk size:  0x00000000 | Blk cnt:  0x00000000
mmc0: sdhci: Argument:  0x00000c00 | Trn mode: 0x00000000
mmc0: sdhci: Present:   0x01ff0001 | Host ctl: 0x00000001
mmc0: sdhci: Power:     0x0000000f | Blk gap:  0x00000000
mmc0: sdhci: Wake-up:   0x00000000 | Clock:    0x00004007
mmc0: sdhci: Timeout:   0x00000000 | Int stat: 0x00018000
mmc0: sdhci: Int enab:  0x00ff0083 | Sig enab: 0x00ff0083
mmc0: sdhci: ACmd stat: 0x00000000 | Slot int: 0x00000001
mmc0: sdhci: Caps:      0x69ec0080 | Caps_1:   0x00000000
mmc0: sdhci: Cmd:       0x0000341a | Max curr: 0x00000001
mmc0: sdhci: Resp[0]:   0x00000000 | Resp[1]:  0x00000000
mmc0: sdhci: Resp[2]:   0x00000000 | Resp[3]:  0x00000000
mmc0: sdhci: Host ctl2: 0x00000000
mmc0: sdhci: ADMA Err:  0x00000000 | ADMA Ptr: 0x00000000
mmc0: sdhci:

Does anyone have any idea about this problem? Thanks a lot.