uboot没有亮背光

[laizh950]

请教大佬们，调试日志如下，我在uboot-board.dts里面把关于lcd的配置都配成和kernel一样的，进去kernel是可以亮背光且显示的，但是uboot却不可以；另外uboot中的这几个报错是什么意思呢？

U-Boot 2018.07-g33aa4d4 (Jun 12 2024 - 08:03:52 +0000) Allwinner Technology

[00.339]CPU:   Allwinner Family
[00.342]Model: sun8iw20
I2C:   FDT ERROR:fdt_set_all_pin:[twi0]-->FDT_ERR_BADPATH
ready
[00.355]DRAM:  256 MiB
[00.358]Relocation Offset is: 0ceb8000
[00.386]secure enable bit: 0
E/TC:0   fdt_getprop_u32:336 prop trace_level not found
Error, wrong i2c adapter 931 max 1 possible
[00.404]pmu_axp1530_probe pmic_bus_init fail
[00.408]CPU=1008 MHz,PLL6=600 Mhz,AHB=200 Mhz, APB1=100Mhz  MBus=300Mhz
[00.414]gic: sec monitor mode
[00.417]line:703 init_clocks
[00.420]flash init start
[00.422]workmode = 0,storage type = 0
[00.429]sunxi-spinand-phy: spinand sample_mode:1 sample_delay:1c

device nand0 <nand>, # parts = 4
 #: name                size            offset          mask_flags
 0: boot0               0x00100000      0x00000000      1
 1: uboot               0x00300000      0x00100000      1
 2: secure_storage      0x00100000      0x00400000      1
 3: sys                 0x0fb00000      0x00500000      0

active partition: nand0,0 - (boot0) 0x00100000 @ 0x00000000

defaults:
mtdids  : nand0=nand
mtdparts: mtdparts=nand:1024k@0(boot0)ro,3072k@1048576(uboot)ro,1024k@4194304(secure_storage)ro,-(sys)
[00.602]ubi0: attaching mtd4
[01.049]ubi0: scanning is finished
[01.059]ubi0: attached mtd4 (name "sys", size 251 MiB)
[01.063]ubi0: PEB size: 262144 bytes (256 KiB), LEB size: 258048 bytes
[01.070]ubi0: min./max. I/O unit sizes: 4096/4096, sub-page size 2048
[01.076]ubi0: VID header offset: 2048 (aligned 2048), data offset: 4096
[01.082]ubi0: good PEBs: 1004, bad PEBs: 0, corrupted PEBs: 0
[01.088]ubi0: user volume: 9, internal volumes: 1, max. volumes count: 128
[01.094]ubi0: max/mean erase counter: 2/1, WL threshold: 4096, image sequence number: 0
[01.102]ubi0: available PEBs: 0, total reserved PEBs: 1004, PEBs reserved for bad PEB handling: 40
[01.111]sunxi flash init ok
[01.113]drv_disp_init
partno erro : can't find partition bootloader
** Unable to read file lcd_compatible_index.txt **
[01.371]disp_fat_load for lcd config failed
[01.396]drv_disp_init finish
[01.595]Loading Environment from SUNXI_FLASH... OK
[01.632]boot_gui_init:start
partno erro : can't find partition Reserve0
bad fb1_cfg[w=0,h=0,bpp=32,format=0]
[01.668]boot_gui_init:finish
partno erro : can't find partition bootloader
[01.697]bmp_name=bootlogo.bmp size 768138
[01.763]Item0 (Map) magic is bad
secure storage read widevine fail
secure storage read ec_key fail
secure storage read ec_cert1 fail
secure storage read ec_cert2 fail
secure storage read ec_cert3 fail
secure storage read rsa_key fail
secure storage read rsa_cert1 fail
secure storage read rsa_cert2 fail
secure storage read rsa_cert3 fail
[01.793]usb burn from boot
delay time 0
weak:otg_phy_config
[01.804]usb prepare ok
[01.846]LCD open finish
[02.107]overtime
[02.110]do_burn_from_boot usb : no usb exist
List file under ULI/factory
** Unrecognized filesystem type **
[02.142]update bootcmd
[02.173]change working_fdt 0x4c877e68 to 0x4c857e68
partno erro : can't find partition bootloader
** Unable to read file lcd_compatible_index.txt **
[02.230]disp_fat_load for lcd config failed
partno erro : can't find partition bootloader
writing lcd_compatible_index.txt
[02.266]offset should be 0 but 0x5391 when write to new volume boot-resource
Error: writing contents

** Unable to write "lcd_compatible_index.txt" from sunxi_flash 0:1 **
[02.281]do_fat_fswrite for lcd config failed
partno erro : can't find partition bootloader
** Unable to read file lcd_compatible_index.txt **
[02.315]disp_fat_load for lcd config failed
[02.321]update dts
Info: gmac phy mode = rmii, phy_interface = 6
Error: gmac get phy-clk-type failed
[02.330]Board Net Initialization Failed
[02.333]No ethernet found.
Hit any key to stop autoboot:  0