imx6 4.1内核的uboot无法更新fdt，image，uboot
uboot 版本：U-Boot 2016.03-svn203 (Jul 31 2018 - 14:07:04 +0800)通过pri查看部分信息如下：
update_fdt=run set_net_cmd; if ${get_cmd} ${loadaddr_def} ${file_dtb}; fatwrite mmc ${mmcdev}:${mmcpart} ${loadaddr_def} ${file_dtb} 0x80000 else echo FAIL: Update device tree fail ...; fi;
update_kern=run set_net_cmd; if ${get_cmd} ${loadaddr_def} ${file_image}; fatwrite mmc ${mmcdev}:${mmcpart} ${loadaddr_def} ${file_image} 0x600000 else echo FAIL: Update kernel fail ...; fi;
update_uboot=run set_net_cmd; if ${get_cmd} ${loadaddr_def} ${file_uboot}; then sf probe 0:1; sf erase 0 0x200000; sf write ${loadaddr_def} 0x400 0x80000; else echo FAIL: Update u-boot fail ...; fi;
run update_fdt 和 run update_kern 有语法错误无法运行
run update_uboot 无法成功更新uboot
试了几个svn版本都是这个情况
完整信息如下：
U-Boot 2016.03-svn203 (Jul 31 2018 - 14:07:04 +0800)
CPU: Freescale i.MX6Q rev1.5 at 792MHz
CPU: Industrial temperature grade (-40C to 105C) at 46C
Reset cause: POR
Board: MYZR i.MX6 Evaluation Kit
Model: MY-IMX6-EK200-6Q-1G
I2C: ready
DRAM:1 GiB
MMC: FSL_SDHC: 0, FSL_SDHC: 1
SF: Detected SST25VF016B with page size 256 Bytes, erase size 64 KiB, total 2 MiB
*** Warning - bad CRC, using default environment
No panel detected: default to MY-LVDS-WSVGA
Display: MY-LVDS-WSVGA (1024x600)
In: serial
Out: serial
Err: serial
Net: FEC
Normal Boot
Hit any key to stop autoboot:0
=>
=>
=>
=> pri
baudrate=115200
bootargs_mfg=setenv bootargs console=ttymxc0,115200 rdinit=/linuxrc g_mass_storage.stall=0 g_mass_storage.removable=1 g_mass_storage.file=/fat g_mass_storage.ro=1 g_mass_storage.idVendor=0x066F g_mass_storage.idProduct=0x37FF g_mass_storage.iSerialNumber="" enable_wait_mode=off
bootargs_mmc=run set_disp; setenv bootargs console=${console},${baudrate} ${smp} root=${mmcroot} ${bootargs_disp}
bootargs_net=setenv bootargs console=${console},${baudrate} ${smp} root=/dev/nfs ip=dhcp nfsroot=${serverip}:${nfsroot},v3,tcp
bootcmd=mmc dev ${mmcdev}; if mmc rescan; then run bootcmd_mmc; else run bootcmd_tftp; fi;
bootcmd_mfg=run bootargs_mfg; bootz ${loadaddr} ${initrd_addr} ${fdt_addr};
bootcmd_mmc=echo Booting from mmc ...; run bootargs_mmc; if run loadfdt; then if run loadimage; then bootz ${loadaddr} - ${fdt_addr}; else echo WARN: Cannot load zImage from mmc; fi; else echo WARN: Cannot load fdt from mmc; fi;
bootcmd_net=echo Booting from net ...; run bootargs_net; run set_net_cmd; if ${get_cmd} ${fdt_addr} ${file_dtb}; then if ${get_cmd} ${loadaddr} ${file_image}; then bootz ${loadaddr} - ${fdt_addr}; else echo WARN: Cannot load zImage from tftp; fi; else echo WARN: Cannot load fdt from tftp; fi;
bootcmd_tftp=echo Booting from tftp ...; run bootargs_mmc; run set_net_cmd; if ${get_cmd} ${fdt_addr} ${file_dtb}; then if ${get_cmd} ${loadaddr} ${file_image}; then bootz ${loadaddr} - ${fdt_addr}; else echo WARN: Cannot load zImage from tftp; fi; else echo WARN: Cannot load fdt from tftp; fi;
bootdelay=1
console=ttymxc0
disp_fb0_hdmi=video=mxcfb0:dev=hdmi,1920x1080M@60,if=RGB24
disp_fb0_lcd=video=mxcfb0:dev=lcd,SEIKO-WVGA,if=RGB24
disp_fb0_lvds0=video=mxcfb0:dev=ldb,if=RGB666 ldb=sin0
disp_fb0_lvds1=video=mxcfb0:dev=ldb,if=RGB666 ldb=sin1
disp_fb1_hdmi=video=mxcfb1:dev=hdmi,1920x1080M@60,if=RGB24
disp_fb1_lcd=video=mxcfb1:dev=lcd,SEIKO-WVGA,if=RGB24
disp_fb1_lvds0=video=mxcfb1:dev=ldb,if=RGB666 ldb=sin0
disp_fb1_lvds1=video=mxcfb1:dev=ldb,if=RGB666 ldb=sin1
disp_lvds_sync=video=mxcfb0:dev=ldb,if=RGB666 ldb=dul1
display=
ethact=FEC
ethaddr=1c:87:76:51:c0:6e
ethprime=FEC
fdt_addr=0x18000000
fdt_high=0xffffffff
file_dtb=myimx6ek200-6q.dtb
file_image=zImage-myimx6a9
file_uboot=uboot-myimx6ek200-6q.imx
initrd_addr=0x12C00000
initrd_high=0xffffffff
ip_dyn=no
ipaddr=192.168.137.81
loadaddr=0x12000000
loadfdt=fatload mmc ${mmcdev}:${mmcpart} ${fdt_addr} ${file_dtb}
loadimage=fatload mmc ${mmcdev}:${mmcpart} ${loadaddr} ${file_image}
mmcautodetect=yes
mmcdev=1
mmcpart=1
mmcroot=/dev/mmcblk3p2 rootwait rw
serverip=192.168.137.99
set_disp=setenv bootargs_disp ${display}
set_net_cmd=if test ${ip_dyn} = yes; then setenv get_cmd dhcp; else setenv get_cmd tftpboot; fi;
update_fdt=run set_net_cmd; if ${get_cmd} ${loadaddr_def} ${file_dtb}; fatwrite mmc ${mmcdev}:${mmcpart} ${loadaddr_def} ${file_dtb} 0x80000 else echo FAIL: Update device tree fail ...; fi;
update_kern=run set_net_cmd; if ${get_cmd} ${loadaddr_def} ${file_image}; fatwrite mmc ${mmcdev}:${mmcpart} ${loadaddr_def} ${file_image} 0x600000 else echo FAIL: Update kernel fail ...; fi;
update_uboot=run set_net_cmd; if ${get_cmd} ${loadaddr_def} ${file_uboot}; then sf probe 0:1; sf erase 0 0x200000; sf write ${loadaddr_def} 0x400 0x80000; else echo FAIL: Update u-boot fail ...; fi;
Environment size: 3383/8188 bytes
=> run set_net_cmd
=> setenv ipaddr 10.10.100.123
=> setenv serverip 10.10.100.200
=> saveenc
Unknown command 'saveenc' - try 'help'
=> saveenv
Saving Environment to SPI Flash...
SF: Detected SST25VF016B with page size 256 Bytes, erase size 64 KiB, total 2 MiB
Erasing SPI flash...Writing to SPI flash...done
=> run update_uboot
Using FEC device
TFTP from server 10.10.100.200; our IP address is 10.10.100.123
Filename 'uboot-myimx6ek200-6q.imx'.
Load address: 0x12000000
Loading: #############################
1.4 MiB/s
done
Bytes transferred = 420864 (66c00 hex)
SF: Detected SST25VF016B with page size 256 Bytes, erase size 64 KiB, total 2 MiB
SF: 2097152 bytes @ 0x0 Erased: OK
device 0 offset 0x80000, size 0x180000
data abort
pc : [<4ff74898>] lr : [<4ff74a64>]
reloc pc : [<1782b898>] lr : [<1782ba64>]
sp : 4ef469f8ip : 00104002fp : 00000000
r10: 00104000r9 : 4ef46eb8r8 : 00000002
r7 : 00000002r6 : 00000000r5 : 02008000r4 : 00000010
r3 : 00000002r2 : 00104000r1 : 00000000r0 : 4f1bc708
Flags: NzcvIRQs offFIQs offMode SVC_32
Resetting CPU ...
resetting ...
我也遇到这样的问题，后来发现是脚本语法有误，需要if 与then 成对使用参照 update_u-boot
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