From: Atish Patra <atish.patra@wdc.com>
Date: Mon, 25 Feb 2019 08:14:42 +0000 (+0000)
Subject: net: macb: Fix GEM hardware detection
X-Git-Tag: v2019.04-rc3~9^2~8
X-Git-Url: https://git.librecmc.org/?a=commitdiff_plain;h=fbcaa260e5cdaeb0cc153c823e034076ac6a6902;p=oweals%2Fu-boot.git

net: macb: Fix GEM hardware detection

Fix MID bit field check to correctly identify all GEM hardwares.

The check is updated as per macb driver in Linux location:
<linux_sources>/drivers/net/ethernet/cadence/macb_main.c:259

Signed-off-by: Atish Patra <atish.patra@wdc.com>
Signed-off-by: Anup Patel <anup.patel@wdc.com>
Reviewed-by: Alexander Graf <agraf@suse.de>
Reviewed-by: Lukas Auer <lukas.auer@aisec.fraunhofer.de>
Acked-by: Joe Hershberger <joe.hershberger@ni.com>
---

diff --git a/drivers/net/macb.c b/drivers/net/macb.c
index 0254e211e6..182331f61d 100644
--- a/drivers/net/macb.c
+++ b/drivers/net/macb.c
@@ -143,7 +143,7 @@ struct macb_device {
 
 static int macb_is_gem(struct macb_device *macb)
 {
-	return MACB_BFEXT(IDNUM, macb_readl(macb, MID)) == 0x2;
+	return MACB_BFEXT(IDNUM, macb_readl(macb, MID)) >= 0x2;
 }
 
 #ifndef cpu_is_sama5d2