sd boot following ubuntu guide

C1:80000000
C2
?
C3h
SD card is detected !!
C4
Command 0x00000000
	interrupt 0x98010424 = 0x00000002
	Command pass
	response 0x98010589 = 0x000000A0
	response 0x9801058A = 0x00000000
	response 0x9801058B = 0x00000000
	response 0x9801058C = 0x00000000
	response 0x9801058D = 0x00000000
	response 0x9801058E = 0x00000000
Command 0x00000008
	interrupt 0x98010424 = 0x00000002
	Command pass
	response 0x98010589 = 0x00000008
	response 0x9801058A = 0x00000000
	response 0x9801058B = 0x00000000
	response 0x9801058C = 0x00000001
	response 0x9801058D = 0x000000AA
	response 0x9801058E = 0x00000013
Command 0x00000037
	interrupt 0x98010424 = 0x00000002
	Command pass
	response 0x98010589 = 0x00000037
	response 0x9801058A = 0x00000000
	response 0x9801058B = 0x00000000
	response 0x9801058C = 0x00000001
	response 0x9801058D = 0x00000020
	response 0x9801058E = 0x00000083
AppCommand 0x00000029
	interrupt 0x98010424 = 0x00000002
	Command pass
	response 0x98010589 = 0x0000003F
	response 0x9801058A = 0x00000000
	response 0x9801058B = 0x000000FF
	response 0x9801058C = 0x00000080
	response 0x9801058D = 0x00000000
	response 0x9801058E = 0x000000FF
Command 0x00000037
	interrupt 0x98010424 = 0x00000002
	Command pass
	response 0x98010589 = 0x00000037
	response 0x9801058A = 0x00000000
	response 0x9801058B = 0x00000000
	response 0x9801058C = 0x00000001
	response 0x9801058D = 0x00000020
	response 0x9801058E = 0x00000083
AppCommand 0x00000029
	interrupt 0x98010424 = 0x00000002
	Command pass
	response 0x98010589 = 0x0000003F
	response 0x9801058A = 0x000000C1
	response 0x9801058B = 0x000000FF
	response 0x9801058C = 0x00000080
	response 0x9801058D = 0x00000000
	response 0x9801058E = 0x000000FF
card powerup status = 0x000000C1
card capacity status = 0x00000001
can switch to 1.8V = 0x00000001
Command 0x0000000B
	interrupt 0x98010424 = 0x00000002
	Command pass
	response 0x98010589 = 0x0000000B
	response 0x9801058A = 0x00000000
	response 0x9801058B = 0x00000000
	response 0x9801058C = 0x00000003
	response 0x9801058D = 0x00000020
	response 0x9801058E = 0x000000BD
wait 0x98010585[4:0] 0
wait 0x98010585[4:0] done
wait 0x98010585[4:0] 1
wait 0x98010585[4:0] done
Command 0x00000002
	interrupt 0x98010424 = 0x00000012
	Command pass
	response 0x98010589 = 0x00000000
	response 0x9801058A = 0x00000000
	response 0x9801058B = 0x00000005
	response 0x9801058C = 0x00000001
	response 0x9801058D = 0x00000018
	response 0x9801058E = 0x00000021
	CID 0xA0000 = 0x%x
604A743F
	CID 0xA0004 = 0x%x
00004453
	CID 0xA0008 = 0x%x
00000000
	CID 0xA000C = 0x%x
18010500
Command 0x00000003
	interrupt 0x98010424 = 0x00000012
	Command pass
	response 0x98010589 = 0x00000003
	response 0x9801058A = 0x00000000
	response 0x9801058B = 0x00000001
	response 0x9801058C = 0x00000005
	response 0x9801058D = 0x00000000
	response 0x9801058E = 0x000000A5
RCA = 0x00000001
Command 0x00000007
	interrupt 0x98010424 = 0x00000012
	Command pass
	response 0x98010589 = 0x00000007
	response 0x9801058A = 0x00000000
	response 0x9801058B = 0x00000000
	response 0x9801058C = 0x00000007
	response 0x9801058D = 0x00000000
	response 0x9801058E = 0x00000075
SD card has been initialized.
Command 0x00000037
	interrupt 0x98010424 = 0x00000012
	Command pass
	response 0x98010589 = 0x00000037
	response 0x9801058A = 0x00000000
	response 0x9801058B = 0x00000000
	response 0x9801058C = 0x00000009
	response 0x9801058D = 0x00000020
	response 0x9801058E = 0x00000033
AppCommand 0x00000006
	interrupt 0x98010424 = 0x00000012
	Command pass
	response 0x98010589 = 0x00000006
	response 0x9801058A = 0x00000000
	response 0x9801058B = 0x00000000
	response 0x9801058C = 0x00000009
	response 0x9801058D = 0x00000020
	response 0x9801058E = 0x000000B9
4-bit bus width
SDR12/normal mode.
Command 0x00000006
	interrupt 0x98010424 = 0x00000012
	Command pass
	response 0x98010589 = 0x00000006
	response 0x9801058A = 0x00000000
	response 0x9801058B = 0x00000000
	response 0x9801058C = 0x00000009
	response 0x9801058D = 0x00000000
	response 0x9801058E = 0x000000DD
DMA finished
cr_auto_Read_Write_1, cmd_idx = 0x00000012
	Command pass
	response 0x98010589 = 0x0000000C
	response 0x9801058A = 0x00000000
	response 0x9801058B = 0x00000000
	response 0x9801058C = 0x0000000B
	response 0x9801058D = 0x00000000
	response 0x9801058E = 0x0000007F
	interrupt 0x98010424 = 0x00000012
Command 0x0000000D
	interrupt 0x98010424 = 0x00000002
	Command pass
	response 0x98010589 = 0x0000000D
	response 0x9801058A = 0x00000000
	response 0x9801058B = 0x00000000
	response 0x9801058C = 0x00000009
	response 0x9801058D = 0x00000000
	response 0x9801058E = 0x0000003F
64b


U-Boot 2015.07 (May 11 2018 - 16:41:59 +0800)

CPU  : Cortex-A53 Quad Core - AARCH64
Board: Realtek QA Board
DRAM:  2 GiB
Watchdog: Disabled
mapping memory 0x20000000-0x40000000 non-cached
flushing dcache successfully.
SD:
SD device index# 0
mmc->scr[0]=2b58002,mmc->scr[1]=0
SD 3.0 SDR104 mode!!!
rtk_sdmmc_tuning_tx TX phase_map = 0xffc3ffff
rtk_sdmmc_tuning_tx final phase = 0x00000004
rtk_sdmmc_tuning_rx RX phase_map = 0xffe07fff
rtk_sdmmc_tuning_rx final phase = 0x00000002
SD: init done, no error
SD: capacity 61120512 sectors(0x3a4a000), (29844 MB)
Factory: SD
[FAC] No factory data in SD
------------can't find tmp/factory/000BootParam.h
[ENV] read_env from factory failed
Using default environment

*** Warning - bad CRC, using default environment

In:    serial
Out:   serial
Err:   serial
HDMITx_HPD=False
------------can't find tmp/factory/video_rpc.bin
tv_system=25 mode=1
Net:   Realtek PCIe GBE Family Controller mcfg = 0024
dev->name=r8168#0
Checking default environment
Hit Esc or Tab key to enter console mode or rescue linux:  0
------------can't find tmp/factory/recovery
======== Checking into android recovery ====

==== boot_from_sd (boot from SD mode; secure_mode 0)=====
reading sd.dtb
** Unable to read file sd.dtb **
load sd.dtb to 0x02100000 failed
Enter console mode, disable watchdog ...