破案了，根文件系统要求squashfs，默认配置是ext4格式文件系统，make menuconfig改成squashfs，同时禁用ext4,就可以了

你发的是我提供的固件吧，你提供下你的固件打印信息

@zhangheyang
所有打印信息发来看看

@zhangheyang
sw可能和wifi模块有关，我的不是麻雀的8189

@zhangheyang tina_t113-mq_uart0.img
uart0 PE2 PE3

@zhangheyang 串口号和pin脚说下

@zhangheyang
#kernel command arguments
earlyprintk=sunxi-uart,0x02500000
initcall_debug=0
console=ttyS0,115200
nand_root=/dev/ubiblock0_5
mmc_root=/dev/mmcblk0p5
nor_root=/dev/mtdblock5
mtd_name=sys
rootfstype=squashfs
root_partition=rootfs
boot_partition=boot
init=/sbin/init
loglevel=8
cma=0M
mac=
wifi_mac=
bt_mac=
specialstr=
keybox_list=widevine,ec_key,ec_cert1,ec_cert2,ec_cert3,rsa_key,rsa_cert1,rsa_cert2,rsa_cert3
dsp0_partition=dsp0
#set kernel cmdline if boot.img or recovery.img has no cmdline we will use this
setargs_nand=setenv bootargs ubi.mtd=${mtd_name} ubi.block=0,${root_partition} earlyprintk=${earlyprintk} clk_ignore_unused initcall_debug=${initcall_debug} console=${console} loglevel=${loglevel} root=${nand_root} rootfstype=${rootfstype} init=${init} partitions=${partitions} cma=${cma} snum=${snum} mac_addr=${mac} wifi_mac=${wifi_mac} bt_mac=${bt_mac} specialstr=${specialstr} gpt=1
setargs_nand_ubi=setenv bootargs ubi.mtd=${mtd_name} ubi.block=0,${root_partition} earlyprintk=${earlyprintk} clk_ignore_unused initcall_debug=${initcall_debug} console=${console} loglevel=${loglevel} root=${nand_root} rootfstype=${rootfstype} init=${init} partitions=${partitions} cma=${cma} snum=${snum} mac_addr=${mac} wifi_mac=${wifi_mac} bt_mac=${bt_mac} specialstr=${specialstr} gpt=1
setargs_mmc=setenv bootargs earlyprintk=${earlyprintk} clk_ignore_unused initcall_debug=${initcall_debug} console=${console} loglevel=${loglevel} root=${mmc_root} init=${init} partitions=${partitions} cma=${cma} snum=${snum} mac_addr=${mac} wifi_mac=${wifi_mac} bt_mac=${bt_mac} specialstr=${specialstr} gpt=1
setargs_nor=setenv bootargs ubi.mtd=${mtd_name} ubi.block=0,${root_partition} earlyprintk=${earlyprintk} clk_ignore_unused initcall_debug=${initcall_debug} console=${console} loglevel=${loglevel} root=${nor_root} rootfstype=${rootfstype} init=${init} partitions=${partitions} cma=${cma} snum=${snum} mac_addr=${mac} wifi_mac=${wifi_mac} bt_mac=${bt_mac} specialstr=${specialstr} gpt=1
#nand command syntax: sunxi_flash read address partition_name read_bytes
#0x4007f800 = 0x40080000(kernel entry) - 0x800(boot.img header 2k)
boot_dsp0=sunxi_flash read 45000000 ${dsp0_partition};bootr 45000000 0 0
boot_normal=sunxi_flash read 41000000 ${boot_partition};bootm 41000000
boot_recovery=sunxi_flash read 45000000 recovery;bootm 45000000
boot_fastboot=fastboot

#uboot system env config
bootdelay=2
#default bootcmd, will change at runtime according to key press
#default nand boot
bootcmd=run setargs_nand boot_normal

破案了，原来是linux kernel的device drivers > network device support > PHY Device support ...下使能了RTL-8363NB。禁用RTL8201F就变成100M，网络也正常了。

自己给自己顶一下

phy是RTL8201F，board.dts配置RMII，linux系统下显示10Mbps/Half，能发送，不能接收。电脑端显示100M，也无法接收，和解？

[    7.447421] libphy: 4500000.eth: probed
[    7.454977] sunxi-gmac 4500000.eth eth0: eth0: -Type(7) PHY ID 00070007 at 0 IRQ poll (4500000.eth-0:00) priv->phy_ext: 1
[    7.484909] sunxi-gmac 4500000.eth eth0: Link is Up - 10Mbps/Half - flow control off

破案了，根文件系统要求squashfs，默认配置是ext4格式文件系统，make menuconfig改成squashfs，同时禁用ext4,就可以了