A64求助大佬帮看看日志，进不去,

[abedong]

U-Boot 2014.07 (Mar 17 2016 - 16:44:15) Allwinner Technology

uboot commit : 032f6839aa6b7a6513226ee4bc08d7ca5ae71569

reg=0xffffffff
normal mode: with secure monitor
rsb: secure monitor exist
[      0.327]pmbus:   ready
[      0.330][ARISC] :arisc initialize
[      0.454][ARISC] :arisc_dvfs_cfg_vf_table: support only one vf_table
[      0.522][ARISC] :arisc para ok
[SCP] :sunxi-arisc driver begin startup 2
[SCP] :arisc_para size:240
[SCP] :arisc version: [v0.1.94]
[SCP] :sunxi-arisc driver v1.10 is starting
[      0.539][ARISC] :sunxi-arisc driver startup succeeded
[      0.571]PMU: AXP81X
[      0.573]PMU: read AXP81X 84H=0xf2
[      0.577]PMU: write AXP81X 84H=0xf6
[      0.580]PMU: AXP81X found
bat_vol=272, ratio=100
[      0.587]PMU: dcdc2 1100
[      0.590]PMU: cpux 1008 Mhz,AXI=336 Mhz
PLL6=600 Mhz,AHB1=200 Mhz, APB1=100Mhz AHB2=300Mhz MBus=400Mhz
device_type = 3253, onoff=1
dcdc1_vol = 3000, onoff=1
dcdc2_vol = 1100, onoff=1
dcdc5_vol = 1500, onoff=1
dcdc6_vol = 1100, onoff=1
aldo1_vol = 3300, onoff=1
aldo2_vol = 3300, onoff=1
aldo3_vol = 3000, onoff=1
dldo1_vol = 3300, onoff=0
dldo2_vol = 3300, onoff=0
dldo3_vol = 2800, onoff=0
dldo4_vol = 3300, onoff=1
eldo1_vol = 1800, onoff=1
eldo2_vol = 1800, onoff=0
eldo3_vol = 1800, onoff=0
fldo2_vol = 1100, onoff=1
gpio0_vol = 3100, onoff=0
vbus exist
no battery, limit to dc
DRAM:  1008 MiB
fdt addr: 0x76ea8300
Relocation Offset is: 35efa000
In:    serial
Out:   serial
Err:   serial
gic: sec monitor mode
[      0.819]start
drv_disp_init
init_clocks: finish init_clocks.
unable to map dsi registers
boot_disp.output_disp=0
boot_disp.output_type=1
boot_disp.output_type=4
fetch script data boot_disp.auto_hpd fail
disp0 device type(1) enable
disp_ioctl, display not init yet
[      0.992]end
workmode = 17,storage type = 1
[      0.996]NB1 : enter phy init
[      0.999]nand_physic_init
[      1.090]Reset NDFC start 0  0
[      1.093]Reset NDFC end 0  0
[      1.096]nand not support! channel 0 chip 0: 00 00 00 00 00 00 00 00
[      1.102]nand not support! channel 0 chip 1: 00 00 00 00 00 00 00 00
[      1.109]nand not support! channel 0 chip 2: 00 00 00 00 00 00 00 00
[      1.115]nand not support! channel 0 chip 3: 00 00 00 00 00 00 00 00
[      1.121] no nand found !
[      1.124]nand_physic_init nand_build_nsi error
[      1.129]nand_physic_init error -1
NB1 : nand phy init fail
[      1.134]NB1 : enter phy Exit
[      1.137]nand_physic_exit
try nand fail
try nand fail
try card 2
[mmc]: mmc driver ver 2015-12-07 18:31:00
[mmc]: get sdc_ex_dly_used 2, use auto tuning sdly
[mmc]: current is product mode, it will tune sdly later
SUNXI SD/MMC: 2
[mmc]: start mmc_calibrate_delay_unit, don't access device...
[mmc]: delay chain cal done, sample: 200(ps)
[mmc]: delay chain cal done, ds: 200(ps)
[mmc]: ************Try SD card 2************
[mmc]: mmc send if cond failed
[mmc]: send app cmd failed
[mmc]: ************Try MMC card 2************
[mmc]: host caps: 0x6f
[mmc]: MID 000015 PSN 84708f1d
[mmc]: PNM 8GME4R -- 0x38-47-4d-45-34
[mmc]: PRV 0.1
[mmc]: MDT m-1 y-2018
[mmc]: MMC v5.1
[mmc]: speed mode     : HSSDR52/SDR25
[mmc]: clock          : 50000000 Hz
[mmc]: bus_width      : 8 bit
[mmc]: user capacity  : 7456 MB
[mmc]: boot capacity  : 4096 KB
[mmc]: rpmb capacity  : 512 KB
[mmc]: ************SD/MMC 2 init OK!!!************
[mmc]: EOL Info(Rev blks): Urgent!!
[mmc]: Wear out(type A): Exceeded its max estimated life time
[mmc]: Wear out(type B): Exceeded its max estimated life time
[mmc]: gen_tuning_blk_bus8: total blk 10
[mmc]: gen_tuning_blk_bus4: total blk 6
[mmc]: write_tuning_try_freq: write ok
[mmc]: Pattern compare ok
[mmc]: Write tuning pattern ok
[mmc]: ================== start tuning HSSDR52_SDR25...
[mmc]: already at HSSDR52_SDR25 mode
[mmc]: skip current freq 400000
[mmc]: skip current freq 25000000
[mmc]: start tuning freq: 2-50000000
[mmc]: s0-255 e0-0 s1-0 e1-0
[mmc]: s0-255 e0-0 s1-0 e1-0
[mmc]: s0-0 e0-4 s1-255 e1-0
[mmc]: ================== start tuning HSDDR52_DDR50...
[mmc]: already at HSSDR52_SDR25 mode
[mmc]: mmc switch failed
[mmc]: mmc swtich status error
[mmc]: mmc switch bus width failed
[mmc]: switch bus width fail
[mmc]: switch to HSDDR52/DDR50 fail
[mmc]: tuning fail at HSDDR52_DDR50
[mmc]: already at HSSDR52_SDR25 mode
[mmc]: mmc switch failed
[mmc]: mmc swtich status error
[mmc]: mmc switch bus width failed
[mmc]: switch bus width fail
[mmc]: switch back to HSSDR52_SDR25 8bit fail
[mmc]: bus tuning fail, err -6
[mmc]: mmc_init: mmc init fail, err -6
MMC init failed
try emmc fail
try spinor fail
initcall sequence 7ff9d3b4 failed at call 4a00c918
### ERROR ### Please RESET the board ###

[whycan]

@abedong 在 A64求助大佬帮看看日志，进不去, 中说：

try card 2
[mmc]: mmc driver ver 2015-12-07 18:31:00
[mmc]: get sdc_ex_dly_used 2, use auto tuning sdly
[mmc]: current is product mode, it will tune sdly later
SUNXI SD/MMC: 2
[mmc]: start mmc_calibrate_delay_unit, don't access device...
[mmc]: delay chain cal done, sample: 200(ps)
[mmc]: delay chain cal done, ds: 200(ps)
[mmc]: Try SD card 2
[mmc]: mmc send if cond failed
[mmc]: send app cmd failed
[mmc]: Try MMC card 2
[mmc]: host caps: 0x6f
[mmc]: MID 000015 PSN 84708f1d
[mmc]: PNM 8GME4R -- 0x38-47-4d-45-34
[mmc]: PRV 0.1
[mmc]: MDT m-1 y-2018
[mmc]: MMC v5.1
[mmc]: speed mode : HSSDR52/SDR25
[mmc]: clock : 50000000 Hz
[mmc]: bus_width : 8 bit
[mmc]: user capacity : 7456 MB
[mmc]: boot capacity : 4096 KB
[mmc]: rpmb capacity : 512 KB
[mmc]: SD/MMC 2 init OK!!!
[mmc]: EOL Info(Rev blks): Urgent!!
[mmc]: Wear out(type A): Exceeded its max estimated life time
[mmc]: Wear out(type B): Exceeded its max estimated life time
[mmc]: gen_tuning_blk_bus8: total blk 10
[mmc]: gen_tuning_blk_bus4: total blk 6
[mmc]: write_tuning_try_freq: write ok
[mmc]: Pattern compare ok
[mmc]: Write tuning pattern ok
[mmc]: ================== start tuning HSSDR52_SDR25...
[mmc]: already at HSSDR52_SDR25 mode
[mmc]: skip current freq 400000
[mmc]: skip current freq 25000000
[mmc]: start tuning freq: 2-50000000
[mmc]: s0-255 e0-0 s1-0 e1-0
[mmc]: s0-255 e0-0 s1-0 e1-0
[mmc]: s0-0 e0-4 s1-255 e1-0
[mmc]: ================== start tuning HSDDR52_DDR50...
[mmc]: already at HSSDR52_SDR25 mode
[mmc]: mmc switch failed
[mmc]: mmc swtich status error
[mmc]: mmc switch bus width failed
[mmc]: switch bus width fail
[mmc]: switch to HSDDR52/DDR50 fail
[mmc]: tuning fail at HSDDR52_DDR50
[mmc]: already at HSSDR52_SDR25 mode
[mmc]: mmc switch failed
[mmc]: mmc swtich status error
[mmc]: mmc switch bus width failed
[mmc]: switch bus width fail
[mmc]: switch back to HSSDR52_SDR25 8bit fail
[mmc]: bus tuning fail, err -6
[mmc]: mmc_init: mmc init fail, err -6

检查eMMC