netdev - [PATCH net-next 09/12] amd-xgbe: Replace MII_ADDR_C45 with XGBE_ADDR

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Date:   Tue, 17 Jan 2023 00:52:24 +0100
From:   Michael Walle <michael@...le.cc>
To:     Sean Wang <sean.wang@...iatek.com>,
        Landen Chao <Landen.Chao@...iatek.com>,
        DENG Qingfang <dqfext@...il.com>,
        Florian Fainelli <f.fainelli@...il.com>,
        Vladimir Oltean <olteanv@...il.com>,
        "David S. Miller" <davem@...emloft.net>,
        Eric Dumazet <edumazet@...gle.com>,
        Jakub Kicinski <kuba@...nel.org>,
        Paolo Abeni <pabeni@...hat.com>,
        Matthias Brugger <matthias.bgg@...il.com>,
        Russell King <linux@...linux.org.uk>,
        Byungho An <bh74.an@...sung.com>,
        Nicolas Ferre <nicolas.ferre@...rochip.com>,
        Claudiu Beznea <claudiu.beznea@...rochip.com>,
        Jesse Brandeburg <jesse.brandeburg@...el.com>,
        Tony Nguyen <anthony.l.nguyen@...el.com>,
        Yisen Zhuang <yisen.zhuang@...wei.com>,
        Salil Mehta <salil.mehta@...wei.com>,
        Tom Lendacky <thomas.lendacky@....com>,
        Shyam Sundar S K <Shyam-sundar.S-k@....com>,
        Sergey Shtylyov <s.shtylyov@....ru>
Cc:     netdev@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
        linux-mediatek@...ts.infradead.org, linux-kernel@...r.kernel.org,
        intel-wired-lan@...ts.osuosl.org,
        linux-renesas-soc@...r.kernel.org, Andrew Lunn <andrew@...n.ch>,
        Michael Walle <michael@...le.cc>
Subject: [PATCH net-next 09/12] amd-xgbe: Replace MII_ADDR_C45 with XGBE_ADDR_C45

From: Andrew Lunn <andrew@...n.ch>

The xgbe driver reuses MII_ADDR_C45 for its own purpose. The values
derived with it are never passed to phylib or a linux MDIO bus driver.
In order that MII_ADDR_C45 can be removed, add an XGBE specific

Signed-off-by: Andrew Lunn <andrew@...n.ch>
Signed-off-by: Michael Walle <michael@...le.cc>
---
 drivers/net/ethernet/amd/xgbe/xgbe-common.h | 11 ++++++-----
 drivers/net/ethernet/amd/xgbe/xgbe-dev.c    | 16 ++++++++--------
 2 files changed, 14 insertions(+), 13 deletions(-)

diff --git a/drivers/net/ethernet/amd/xgbe/xgbe-common.h b/drivers/net/ethernet/amd/xgbe/xgbe-common.h
index 466273b22f0a..3fd9728f817f 100644
--- a/drivers/net/ethernet/amd/xgbe/xgbe-common.h
+++ b/drivers/net/ethernet/amd/xgbe/xgbe-common.h
@@ -1699,20 +1699,21 @@ do {									\
 } while (0)
 
 /* Macros for building, reading or writing register values or bits
- * using MDIO.  Different from above because of the use of standardized
- * Linux include values.  No shifting is performed with the bit
- * operations, everything works on mask values.
+ * using MDIO.
  */
+
+#define XGBE_ADDR_C45 BIT(30)
+
 #define XMDIO_READ(_pdata, _mmd, _reg)					\
 	((_pdata)->hw_if.read_mmd_regs((_pdata), 0,			\
-		MII_ADDR_C45 | (_mmd << 16) | ((_reg) & 0xffff)))
+		XGBE_ADDR_C45 | (_mmd << 16) | ((_reg) & 0xffff)))
 
 #define XMDIO_READ_BITS(_pdata, _mmd, _reg, _mask)			\
 	(XMDIO_READ((_pdata), _mmd, _reg) & _mask)
 
 #define XMDIO_WRITE(_pdata, _mmd, _reg, _val)				\
 	((_pdata)->hw_if.write_mmd_regs((_pdata), 0,			\
-		MII_ADDR_C45 | (_mmd << 16) | ((_reg) & 0xffff), (_val)))
+		XGBE_ADDR_C45 | (_mmd << 16) | ((_reg) & 0xffff), (_val)))
 
 #define XMDIO_WRITE_BITS(_pdata, _mmd, _reg, _mask, _val)		\
 do {									\
diff --git a/drivers/net/ethernet/amd/xgbe/xgbe-dev.c b/drivers/net/ethernet/amd/xgbe/xgbe-dev.c
index aafa02fb3fdf..f393228d41c7 100644
--- a/drivers/net/ethernet/amd/xgbe/xgbe-dev.c
+++ b/drivers/net/ethernet/amd/xgbe/xgbe-dev.c
@@ -1157,8 +1157,8 @@ static int xgbe_read_mmd_regs_v2(struct xgbe_prv_data *pdata, int prtad,
 	unsigned int mmd_address, index, offset;
 	int mmd_data;
 
-	if (mmd_reg & MII_ADDR_C45)
-		mmd_address = mmd_reg & ~MII_ADDR_C45;
+	if (mmd_reg & XGBE_ADDR_C45)
+		mmd_address = mmd_reg & ~XGBE_ADDR_C45;
 	else
 		mmd_address = (pdata->mdio_mmd << 16) | (mmd_reg & 0xffff);
 
@@ -1189,8 +1189,8 @@ static void xgbe_write_mmd_regs_v2(struct xgbe_prv_data *pdata, int prtad,
 	unsigned long flags;
 	unsigned int mmd_address, index, offset;
 
-	if (mmd_reg & MII_ADDR_C45)
-		mmd_address = mmd_reg & ~MII_ADDR_C45;
+	if (mmd_reg & XGBE_ADDR_C45)
+		mmd_address = mmd_reg & ~XGBE_ADDR_C45;
 	else
 		mmd_address = (pdata->mdio_mmd << 16) | (mmd_reg & 0xffff);
 
@@ -1220,8 +1220,8 @@ static int xgbe_read_mmd_regs_v1(struct xgbe_prv_data *pdata, int prtad,
 	unsigned int mmd_address;
 	int mmd_data;
 
-	if (mmd_reg & MII_ADDR_C45)
-		mmd_address = mmd_reg & ~MII_ADDR_C45;
+	if (mmd_reg & XGBE_ADDR_C45)
+		mmd_address = mmd_reg & ~XGBE_ADDR_C45;
 	else
 		mmd_address = (pdata->mdio_mmd << 16) | (mmd_reg & 0xffff);
 
@@ -1248,8 +1248,8 @@ static void xgbe_write_mmd_regs_v1(struct xgbe_prv_data *pdata, int prtad,
 	unsigned int mmd_address;
 	unsigned long flags;
 
-	if (mmd_reg & MII_ADDR_C45)
-		mmd_address = mmd_reg & ~MII_ADDR_C45;
+	if (mmd_reg & XGBE_ADDR_C45)
+		mmd_address = mmd_reg & ~XGBE_ADDR_C45;
 	else
 		mmd_address = (pdata->mdio_mmd << 16) | (mmd_reg & 0xffff);
 

-- 
2.30.2