netdev - [PATCH 2/3] net: ks8851-ml: Fix 16-bit data access

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Message-Id: <20200210184139.342716-2-marex@denx.de>
Date:   Mon, 10 Feb 2020 19:41:38 +0100
From:   Marek Vasut <marex@...x.de>
To:     netdev@...r.kernel.org
Cc:     Marek Vasut <marex@...x.de>,
        "David S . Miller" <davem@...emloft.net>,
        Lukas Wunner <lukas@...ner.de>, Petr Stetiar <ynezz@...e.cz>,
        YueHaibing <yuehaibing@...wei.com>
Subject: [PATCH 2/3] net: ks8851-ml: Fix 16-bit data access

The packet data written to and read from Micrel KSZ8851-16MLLI must be
byte-swapped in 16-bit mode, add this byte-swapping.

Signed-off-by: Marek Vasut <marex@...x.de>
Cc: David S. Miller <davem@...emloft.net>
Cc: Lukas Wunner <lukas@...ner.de>
Cc: Petr Stetiar <ynezz@...e.cz>
Cc: YueHaibing <yuehaibing@...wei.com>
---
 drivers/net/ethernet/micrel/ks8851_mll.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/net/ethernet/micrel/ks8851_mll.c b/drivers/net/ethernet/micrel/ks8851_mll.c
index e2fb20154511..e9ca198a67a4 100644
--- a/drivers/net/ethernet/micrel/ks8851_mll.c
+++ b/drivers/net/ethernet/micrel/ks8851_mll.c
@@ -197,7 +197,7 @@ static inline void ks_inblk(struct ks_net *ks, u16 *wptr, u32 len)
 {
 	len >>= 1;
 	while (len--)
-		*wptr++ = (u16)ioread16(ks->hw_addr);
+		*wptr++ = swab16(ioread16(ks->hw_addr));
 }
 
 /**
@@ -211,7 +211,7 @@ static inline void ks_outblk(struct ks_net *ks, u16 *wptr, u32 len)
 {
 	len >>= 1;
 	while (len--)
-		iowrite16(*wptr++, ks->hw_addr);
+		iowrite16(swab16(*wptr++), ks->hw_addr);
 }
 
 static void ks_disable_int(struct ks_net *ks)
-- 
2.24.1