AuxXxilium/linux_dsm_epyc7002
1
0
Fork 0
mirror of https://github.com/AuxXxilium/linux_dsm_epyc7002.git synced 2024-12-18 21:06:44 +07:00
Code Issues Actions Packages Projects Releases Wiki Activity

net/faraday: Clear stale interrupts

Browse Source 
There is stale interrupt (PHYSTS_CHG in ISR, bit#6 in 0x0) from
the bootloader (uboot) when enabling the MAC. The stale interrupts
aren't part of kernel and should be cleared.

This clears the stale interrupts in ISR (0x0) when enabling the MAC.

Signed-off-by: Gavin Shan <gwshan@linux.vnet.ibm.com>
Signed-off-by: Joel Stanley <joel@jms.id.au>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Gavin Shan 2016-09-22 08:35:01 +09:30 committed by David S. Miller
parent 2a0ab8ebbe
commit 08c9c12600
1 changed files with 6 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

6
drivers/net/ethernet/faraday/ftgmac100.c
View File

@ -1112,6 +1112,7 @@ static int ftgmac100_poll(struct napi_struct *napi, int budget)
static int ftgmac100_open(struct net_device *netdev)
{
struct ftgmac100 *priv = netdev_priv(netdev);
unsigned int status;
int err;
err = ftgmac100_alloc_buffers(priv);
@ -1137,6 +1138,11 @@ static int ftgmac100_open(struct net_device *netdev)
ftgmac100_init_hw(priv);
ftgmac100_start_hw(priv, priv->use_ncsi ? 100 : 10);
/* Clear stale interrupts */
status = ioread32(priv->base + FTGMAC100_OFFSET_ISR);
iowrite32(status, priv->base + FTGMAC100_OFFSET_ISR);
if (netdev->phydev)
phy_start(netdev->phydev);
else if (priv->use_ncsi)