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AM625: 在uboot阶段使用tftp和nfs服务

Part Number: AM625
Other Parts Discussed in Thread: SK-AM62

NOTICE: BL31: v2.10.0(release):v2.10.0-367-g00f1ec6b87-dirty
NOTICE: BL31: Built : 16:09:05, Feb 9 2024

U-Boot SPL 2023.04-ti-g836606420854 (May 09 2024 - 05:42:45 +0000)
SYSFW ABI: 3.1 (firmware rev 0x0009 '9.2.8--v09.02.08 (Kool Koala)')
SPL initial stack usage: 1856 bytes
Trying to boot from MMC2
Authentication passed
Authentication passed


U-Boot 2023.04-ti-g836606420854 (May 09 2024 - 05:42:45 +0000)

SoC: AM62X SR1.0 HS-FS
Model: Texas Instruments AM62x LP SK
EEPROM not available at 80, trying to read at 81
Board: AM62-LP-SKEVM rev E2
DRAM: 2 GiB
Core: 81 devices, 33 uclasses, devicetree: separate
NAND: 0 MiB
MMC: mmc@fa10000: 0, mmc@fa00000: 1
Loading Environment from nowhere... OK
In: serial
Out: serial
Err: serial
Net: eth0: ethernet@8000000port@1
Hit any key to stop autoboot: 0
=> ping 192.168.1.10
ethernet@8000000port@1 Waiting for PHY auto negotiation to complete......... TIMEOUT !
am65_cpsw_nuss_port ethernet@8000000port@1: phy_startup failed
am65_cpsw_nuss_port ethernet@8000000port@1: am65_cpsw_start end error
ping failed; host 192.168.1.10 is not alive

我参考了一个帖子SK-AM62: NFS boot setup on AM62A board - Processors forum - Processors - TI E2E support forums;按照上面的修改了uEnv.txt,还是报错。
因为我在主机里面开启了isc-dhcp服务,在开发板用默认镜像启动后,ping 正常了,并且tftp时可以使用

我想在uboot阶段使用tftp和nfs服务,我需要修改什么?