我想在RK3568上测试一些APP，安装Package等，但是烧上系统之后，发现不能访问外网。
显示的错误如下：
[ 54.867839] rk_gmac-dwmac fe2a0000.ethernet: Failed to reset the dma
[ 54.867878] rk_gmac-dwmac fe2a0000.ethernet eth1: stmmac_hw_setup: DMA engine initialization failed
[ 54.867887] rk_gmac-dwmac fe2a0000.ethernet eth1: stmmac_open: Hw setup failed
[ 54.889764] rk_gmac-dwmac fe010000.ethernet eth0: Could not attach to PHY
[ 54.889797] rk_gmac-dwmac fe010000.ethernet eth0: stmmac_open: Cannot attach to PHY (error: -19)
[ 55.007607] rk_gmac-dwmac fe2a0000.ethernet: Failed to reset the dma
[ 55.007636] rk_gmac-dwmac fe2a0000.ethernet eth1: stmmac_hw_setup: DMA engine initialization failed
[ 55.007643] rk_gmac-dwmac fe2a0000.ethernet eth1: stmmac_open: Hw setup failed
哪位大佬看一下，这个问题怎么解决？
你们是自研的产品吧，出这提示应该是硬件层导致的，芯片与phy芯片之间连接有问题用示波器抓一下波形分析下