renegade-project/linux-next
2
0
Fork 0
mirror of https://github.com/edk2-porting/linux-next.git synced 2024-12-17 01:34:00 +08:00
Code

net/macb: add comment in macb_probe_queues

Browse Source 
As we access the MID register directly, we need to tell why
we don't use the macb_is_gem() dedicated function.

Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Nicolas Ferre 2015-03-31 15:02:00 +02:00 committed by David S. Miller
parent bfa0914afa
commit da12011249
1 changed files with 6 additions and 2 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

8
drivers/net/ethernet/cadence/macb.c
View File

@ -2161,9 +2161,13 @@ static void macb_probe_queues(void __iomem *mem,
*queue_mask = 0x1;
*num_queues = 1;
/* is it macb or gem ? */
/* is it macb or gem ?
*
* We need to read directly from the hardware here because
* we are early in the probe process and don't have the
* MACB_CAPS_MACB_IS_GEM flag positioned
*/
mid = readl_relaxed(mem + MACB_MID);
if (MACB_BFEXT(IDNUM, mid) < 0x2)
return;