[PATCH AUTOSEL 5.9 07/15] net: stmmac: increase the timeout for dma reset

From: Sasha Levin
Date: Sat Dec 19 2020 - 22:39:29 EST


From: Fugang Duan <fugang.duan@xxxxxxx>

[ Upstream commit 9d14edfdeabf37d8d8f045e63e5873712aadcd6b ]

Current timeout value is not enough for gmac5 dma reset
on imx8mp platform, increase the timeout range.

Signed-off-by: Fugang Duan <fugang.duan@xxxxxxx>
Signed-off-by: Joakim Zhang <qiangqing.zhang@xxxxxxx>
Signed-off-by: David S. Miller <davem@xxxxxxxxxxxxx>
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
---
drivers/net/ethernet/stmicro/stmmac/dwmac4_lib.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/net/ethernet/stmicro/stmmac/dwmac4_lib.c b/drivers/net/ethernet/stmicro/stmmac/dwmac4_lib.c
index 6e30d7eb4983d..0b4ee2dbb691d 100644
--- a/drivers/net/ethernet/stmicro/stmmac/dwmac4_lib.c
+++ b/drivers/net/ethernet/stmicro/stmmac/dwmac4_lib.c
@@ -22,7 +22,7 @@ int dwmac4_dma_reset(void __iomem *ioaddr)

return readl_poll_timeout(ioaddr + DMA_BUS_MODE, value,
!(value & DMA_BUS_MODE_SFT_RESET),
- 10000, 100000);
+ 10000, 1000000);
}

void dwmac4_set_rx_tail_ptr(void __iomem *ioaddr, u32 tail_ptr, u32 chan)
--
2.27.0