AM437X uboot TFTP下载问题？

本帖最后由一只耳朵怪于 2018-6-21 14:29 编辑

kernel: linux-3.14.43
platform:AM437X
nand 分区：
0x00000000-0x0003ffff-->mtd0: 00040000 00020000 "NAND.SPL" ---(256Kib)0x00040000-0x0007ffff-->mtd1: 00040000 00020000 "NAND.SPL.backup1" ---(256Kib)0x00080000-0x000bffff-->mtd2: 00040000 00020000 "NAND.SPL.backup2" ---(256Kib)0x000c0000-0x000effff-->mtd3: 00040000 00020000 "NAND.SPL.backup3" ---(256Kib)0x00100000-0x0017ffff-->mtd4: 00080000 00020000 "NAND.u-boot-spl-os" ---(512Kib)0x00180000-0x0027ffff-->mtd5: 00100000 00020000 "NAND.u-boot" ---(1024Kib)0x00280000-0x002bffff-->mtd6: 00040000 00020000 "NAND.u-boot-env" ---(256Kib)0x002c0000-0x002effff-->mtd7: 00040000 00020000 "NAND.u-boot-env.backup1" ---(256Kib)0x00300000-0x009effff-->mtd8: 00700000 00020000 "NAND.kernel" ---(7168Kib)0x00a00000-0x0fefffff-->mtd9: 0f600000 00020000 "NAND.file-system" ---(251904Kib)ubootarch=ARMbaudrate=115200board=am43xxboard_name=myd_c437xboard_rev=1.0boot_targets=mmc u*** nandbootcmd=for target in $[boot_targets]; do run bootcmd_$[target]; donebootcmd_mmc=selmmcboot;bootcmd_mmc0=setenv devnum 0; setenv mmcroot /dev/mmcblk1p2 rw; setenv bootpart 0:1; setenv rootpart 2; run mmc_boot;bootcmd_mmc1=setenv devnum 1; setenv mmcroot /dev/mmcblk0p2 rw; setenv bootpart 1:1; setenv rootpart 2; run mmc_boot;bootcmd_nand=run nandboot;bootcmd_u***=setenv devnum 0; run u***_boot;bootdelay=1bootenv=uEnv.txtbootfile=zImageconsole=ttyO0,115200n8cpu=armv7eth1addr=a0:f6:fd:59:cb:e4ethact=cpswethaddr=a0:f6:fd:59:cb:e2fdt_high=0xa0000000fdtaddr=0x80F80000fdtfile=undefinedfdtsize=0x10000findfdt=if test $board_name = AM43EPOS; then setenv fdtfile am43x-epos-evm.dtb; fi; if test $board_name = myd_c437x; then setenv fdtfile myd_c437x.dtb; fi; if test $fdtfile = undefined; then echo WARNING: Could not determine device tree; fi;importbootenv=echo Importing environment from mmc ...; env import -t $loadaddr $filesizekernelsize=0x500000loadaddr=0x80200000loadbootenv=load mmc $[devnum] $[loadaddr] $[bootenv]loadfdt=load mmc $[bootpart] $[fdtaddr] $[bootdir]/$[fdtfile]loadimage=load mmc $[bootpart] $[loadaddr] $[bootdir]/$[bootfile]loadramdisk=load mmc $[devnum] $[rdaddr] ramdisk.gzmmc_boot=setenv devtype mmc; if mmc dev $[devnum]; then run scan_boot; if run loadbootenv; then echo Loaded environment from $[bootenv];run importbootenv;fi;if test -n $uenvcmd; then echo Running uenvcmd ...;run uenvcmd;fi;run mmcboot;fimmcargs=setenv bootargs console=$[console] $[optargs] root=$[mmcroot] rootfstype=$[mmcrootfstype]mmcboot=if mmc dev $[devnum]; then if run loadimage; then run findfdt;run loadfdt; echo Booting from mmc$[devnum] ...; run mmcargs; bootz $[loadaddr] - $[fdtaddr]; fi;fi;mmcrootfstype=ext4 rootwaitmtdids=nand0=nand.0mtdparts=mtdparts=nand.0:256k(NAND.SPL),256k(NAND.SPL.backup1),256k(NAND.SPL.backup2),256k(NAND.SPL.backup3),512k(NAND.u-boot-spl-os),1m(NAND.u-boot),256k(NAND.u-boot-env),256k(NAND.u-boot-env.backup1),7m(NAND.kernel),-(NAND.file-system)nand_erasesize=20000nand_oobsize=80nand_writesize=800nandargs=setenv bootargs console=$[console] $[optargs] root=$[nandroot] rootfstype=$[nandrootfstype]nandboot=echo Booting from nand ...; run nandargs; nand read $[fdtaddr] NAND.u-boot-spl-os; nand read $[loadaddr] NAND.kernel; bootz $[loadaddr] - $[fdtaddr]nandroot=ubi0:rootfs rw ubi.mtd=NAND.file-system,2048nandrootfstype=ubifs rootwait=1netargs=setenv bootargs console=$[console] $[optargs] root=/dev/nfs nfsroot=$[serverip]:$[rootpath],$[nfsopts] rw ip=dhcpnetboot=echo Booting from network ...; setenv autoload no; dhcp; tftp $[loadaddr] $[bootfile]; tftp $[fdtaddr] $[fdtfile]; run netargs; bootz $[loadaddr] - $[fdtaddr]nfsopts=nolockoptargs=omapdss.def_disp=display1 omapfb.mode=display1:1024x768MR-24@60partitions=uuid_disk=$[uuid_gpt_disk];name=rootfs,start=2MiB,size=-,uuid=$[uuid_gpt_rootfs]ramargs=setenv bootargs console=$[console] $[optargs] root=$[ramroot] rootfstype=$[ramrootfstype]ramroot=/dev/ram0 rw ramdisk_size=131072 initrd=0x81000000,64Mramrootfstype=ext2rdaddr=0x81000000rootpart=2rootpath=/export/rootfsscan_boot=echo Scanning $[devtype] $[devnum]...; for prefix in $[bootdir]; do for script in $[bootfile]; do run script_boot; done; done;script_boot=if load $[devtype] $[devnum]:$[rootpart] $[loadaddr] $[bootdir]/$[bootfile]; then run findfdt; load $[devtype] $[devnum]:$[rootpart] $[fdtaddr] $[bootdir]/$[fdtfile];fi;soc=am33xxstatic_ip=$[ipaddr]:$[serverip]:$[gatewayip]:$[netmask]:$[hostname]::offstderr=serialstdin=serialstdout=serialu***_boot=setenv devtype u***; run u***_init; if u*** dev 0; then run u***args;run scan_boot; bootz $[loadaddr] - $[fdtaddr]; fiu***_init=u*** start 0;u***args=setenv bootargs console=$[console] $[optargs] root=$[u***root] rootfstype=$[u***rootfstype]u***root=/dev/sda2 rwu***rootfstype=ext4 rootwaitvendor=ti

最近在改驱动，需要经常要修改设备数，但用SD卡下载速度太慢了，还有其他方法没（快点滴）？比如tftp,USB....
我尝试下TFTP，但有问题
1.tftp下载有相关文档吗
2.uboot通过tftp下载内核文件uImage
编译产生uImage : make -j4 uImage ARCH=arm CROSS_COMPILE=arm-linux-gnueabihf- LOADADDR=0x80008000 ( LOADADDR设置对了吗 )
下载后一直停在Starting kernel ...