启明星uboot时无法找到以太网（no ethernet found)

como04052215

请各位帮忙看看网口问题：

启明星petalinux第一个历程，linux能正常运行，接上网线后，单板网口两个LED均闪烁，但无法连接路由器。

启动信息如下：



U-Boot 2018.01 (Aug 09 2020 - 09:49:50 +0000) Xilinx Zynq ZC702

Model: Navigator Development Board
Board: Xilinx Zynq
Silicon: v3.1
I2C:   ready
DRAM:  ECC disabled 1 GiB
MMC:   sdhci_transfer_data: Error detected in status(0x208000)!
mmc@e0100000: 0 (SD), mmc@e0101000: 1 (eMMC)
** No device specified **
Using default environment

## Error: flags type check failure for "serverip" <= "AUTO" (type: i)
himport_r: can't insert "serverip=AUTO" into hash table
In:    serial@e0000000
Out:   serial@e0000000
Err:   serial@e0000000
Model: Navigator Development Board
Board: Xilinx Zynq
Silicon: v3.1
Net:   ZYNQ GEM: e000b000, phyaddr ffffffff, interface rgmii-id
PHY is not detected
GEM PHY init failed
No ethernet found.
U-BOOT for zynq_linux

ZYNQ GEM: e000b000, phyaddr ffffffff, interface rgmii-id
mdio_register: non unique device name 'eth0'
ZYNQ GEM: e000b000, phyaddr ffffffff, interface rgmii-id
mdio_register: non unique device name 'eth0'
ZYNQ GEM: e000b000, phyaddr ffffffff, interface rgmii-id
mdio_register: non unique device name 'eth0'
ZYNQ GEM: e000b000, phyaddr ffffffff, interface rgmii-id
mdio_register: non unique device name 'eth0'
No ethernet found.
ZYNQ GEM: e000b000, phyaddr ffffffff, interface rgmii-id
mdio_register: non unique device name 'eth0'
Hit any key to stop autoboot:  0

como04052215

已解决：配置硬件时勾选了ETH0，但未配置MDIO信号，导致无法找到PHY