From: Nicolas Ferre <nicolas.ferre@atmel.com>
Date: Tue, 31 Mar 2015 13:02:05 +0000 (+0200)
Subject: net/macb: fix the peripheral version test
X-Git-Tag: v4.0.2~117
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=6181a6b2238de82fed39b0568645ea6a1ff2c6fd;p=thirdparty%2Fkernel%2Fstable.git

net/macb: fix the peripheral version test

commit 361918970b7426bba97a64678ef2b2679c37199b upstream.

We currently need two checks of the peripheral version in MACB_MID register.
One of them got out of sync after modification by 8a013a9c71b2 (net: macb:
Include multi queue support for xilinx ZynqMP ethernet version).
Fix this in macb_configure_caps() so that xilinx ZynqMP will be considered
as a GEM flavor.

Fixes: 8a013a9c71b2 ("net: macb: Include multi queue support for xilinx ZynqMP
ethernet version")

Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>
Cc: Michal Simek <michal.simek@xilinx.com>
Cc: Punnaiah Choudary Kalluri <punnaia@xilinx.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---

diff --git a/drivers/net/ethernet/cadence/macb.c b/drivers/net/ethernet/cadence/macb.c
index 81d41539fcbab..77bf1337d179d 100644
--- a/drivers/net/ethernet/cadence/macb.c
+++ b/drivers/net/ethernet/cadence/macb.c
@@ -2165,7 +2165,7 @@ static void macb_configure_caps(struct macb *bp)
 		}
 	}
 
-	if (MACB_BFEXT(IDNUM, macb_readl(bp, MID)) == 0x2)
+	if (MACB_BFEXT(IDNUM, macb_readl(bp, MID)) >= 0x2)
 		bp->caps |= MACB_CAPS_MACB_IS_GEM;
 
 	if (macb_is_gem(bp)) {