diff options
| author | Sergei Shtylyov <sergei.shtylyov@cogentembedded.com> | 2018-01-04 21:06:49 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2018-01-17 09:35:29 +0100 |
| commit | f574e2e8c6cf01b4fb57ac38d89ee63be3c1dacd (patch) | |
| tree | 0e9385720bf4f9c517b040ba7a57b15342bfb584 /drivers | |
| parent | 29ca856bb76adb263d2dd3ed8c2cd193b08c3411 (diff) | |
sh_eth: fix SH7757 GEther initialization
[ Upstream commit 5133550296d43236439494aa955bfb765a89f615 ]
Renesas SH7757 has 2 Fast and 2 Gigabit Ether controllers, while the
'sh_eth' driver can only reset and initialize TSU of the first controller
pair. Shimoda-san tried to solve that adding the 'needs_init' member to the
'struct sh_eth_plat_data', however the platform code still never sets this
flag. I think that we can infer this information from the 'devno' variable
(set to 'platform_device::id') and reset/init the Ether controller pair
only for an even 'devno'; therefore 'sh_eth_plat_data::needs_init' can be
removed...
Fixes: 150647fb2c31 ("net: sh_eth: change the condition of initialization")
Signed-off-by: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/net/ethernet/renesas/sh_eth.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/drivers/net/ethernet/renesas/sh_eth.c b/drivers/net/ethernet/renesas/sh_eth.c index b569400a908b..424d1dee55c9 100644 --- a/drivers/net/ethernet/renesas/sh_eth.c +++ b/drivers/net/ethernet/renesas/sh_eth.c @@ -3205,8 +3205,8 @@ static int sh_eth_drv_probe(struct platform_device *pdev) ndev->features = NETIF_F_HW_VLAN_CTAG_FILTER; } - /* initialize first or needed device */ - if (!devno || pd->needs_init) { + /* Need to init only the first port of the two sharing a TSU */ + if (devno % 2 == 0) { if (mdp->cd->chip_reset) mdp->cd->chip_reset(ndev); |