On 4/30/20 4:36 AM, David Wu wrote: > When using rgmii Gigabit mode, the wait_for_bit_le32() > reset method resulting in RX can not receive data, after > this patch, works well.
> diff --git a/drivers/net/dwc_eth_qos.c b/drivers/net/dwc_eth_qos.c > + limit = eqos->config->swr_wait / 10; > + while (limit--) { > + if (!(readl(&eqos->dma_regs->mode) & EQOS_DMA_MODE_SWR)) > + break; > + mdelay(10000); > + } mdelay()'s parameter is in milliseconds judging by its implementation in include/linux/delay.h. So, this delays 10 seconds in each loop iteration. That can't possibly be right.