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From: Jan Luebbe <jlu@pengutronix.de>
To: barebox@lists.infradead.org
Subject: [PATCH 3/3] davinci_emac: get rid of mdio wrapper functions
Date: Wed, 26 Sep 2012 15:17:55 +0200	[thread overview]
Message-ID: <1348665475-21338-3-git-send-email-jlu@pengutronix.de> (raw)
In-Reply-To: <1348665475-21338-1-git-send-email-jlu@pengutronix.de>

Signed-off-by: Jan Luebbe <jlu@pengutronix.de>
---
 drivers/net/davinci_emac.c |   52 ++++++++++++++++----------------------------
 1 file changed, 19 insertions(+), 33 deletions(-)

diff --git a/drivers/net/davinci_emac.c b/drivers/net/davinci_emac.c
index a8b4b36..ef20611 100644
--- a/drivers/net/davinci_emac.c
+++ b/drivers/net/davinci_emac.c
@@ -119,65 +119,51 @@ static void davinci_eth_mdio_enable(struct davinci_emac_priv *priv)
 	while (readl(priv->adap_mdio + EMAC_MDIO_CONTROL) & MDIO_CONTROL_IDLE);
 }
 
-/* Read a PHY register via MDIO inteface. Returns 1 on success, 0 otherwise */
-static int davinci_eth_phy_read(struct davinci_emac_priv *priv, uint8_t phy_addr, uint8_t reg_num, uint16_t *data)
+static int davinci_miibus_read(struct mii_bus *bus, int addr, int reg)
 {
-	int	tmp;
+	struct davinci_emac_priv *priv = (struct davinci_emac_priv *)bus->priv;
+	uint16_t value;
+	int tmp;
 
 	while (readl(priv->adap_mdio + EMAC_MDIO_USERACCESS0) & MDIO_USERACCESS0_GO);
 
 	writel(MDIO_USERACCESS0_GO |
 		MDIO_USERACCESS0_WRITE_READ |
-		((reg_num & 0x1f) << 21) |
-		((phy_addr & 0x1f) << 16),
+		((reg & 0x1f) << 21) |
+		((addr & 0x1f) << 16),
 		priv->adap_mdio + EMAC_MDIO_USERACCESS0);
 
 	/* Wait for command to complete */
 	while ((tmp = readl(priv->adap_mdio + EMAC_MDIO_USERACCESS0)) & MDIO_USERACCESS0_GO);
 
 	if (tmp & MDIO_USERACCESS0_ACK) {
-		*data = tmp & 0xffff;
-		dev_dbg(priv->dev, "emac_phy_read: addr=0x%02x reg=0x%02x data=0x%04x\n",
-			   phy_addr, reg_num, *data);
-		return 1;
+		value = tmp & 0xffff;
+		dev_dbg(priv->dev, "davinci_miibus_read: addr=0x%02x reg=0x%02x value=0x%04x\n",
+			   addr, reg, value);
+		return value;
 	}
 
-	*data = -1;
-	return 0;
+	return -1;
 }
 
-/* Write to a PHY register via MDIO inteface. Blocks until operation is complete. */
-static int davinci_eth_phy_write(struct davinci_emac_priv *priv, uint8_t phy_addr, uint8_t reg_num, uint16_t data)
+static int davinci_miibus_write(struct mii_bus *bus, int addr, int reg, u16 value)
 {
-
+	struct davinci_emac_priv *priv = (struct davinci_emac_priv *)bus->priv;
 	while (readl(priv->adap_mdio + EMAC_MDIO_USERACCESS0) & MDIO_USERACCESS0_GO);
 
-	dev_dbg(priv->dev, "emac_phy_write: addr=0x%02x reg=0x%02x data=0x%04x\n",
-		   phy_addr, reg_num, data);
+	dev_dbg(priv->dev, "davinci_miibus_write: addr=0x%02x reg=0x%02x value=0x%04x\n",
+		   addr, reg, value);
 	writel(MDIO_USERACCESS0_GO |
 				MDIO_USERACCESS0_WRITE_WRITE |
-				((reg_num & 0x1f) << 21) |
-				((phy_addr & 0x1f) << 16) |
-				(data & 0xffff),
+				((reg & 0x1f) << 21) |
+				((addr & 0x1f) << 16) |
+				(value & 0xffff),
 		priv->adap_mdio + EMAC_MDIO_USERACCESS0);
 
 	/* Wait for command to complete */
 	while (readl(priv->adap_mdio + EMAC_MDIO_USERACCESS0) & MDIO_USERACCESS0_GO);
 
-	return 1;
-}
-
-static int davinci_miibus_read(struct mii_bus *bus, int addr, int reg)
-{
-	struct davinci_emac_priv *priv = (struct davinci_emac_priv *)bus->priv;
-	uint16_t value = 0;
-	return davinci_eth_phy_read(priv, addr, reg, &value) ? value : -1;
-}
-
-static int davinci_miibus_write(struct mii_bus *bus, int addr, int reg, u16 value)
-{
-	struct davinci_emac_priv *priv = (struct davinci_emac_priv *)bus->priv;
-	return davinci_eth_phy_write(priv, addr, reg, value) ? 0 : -1;
+	return 0;
 }
 
 static int davinci_emac_get_ethaddr(struct eth_device *edev, unsigned char *adr)
-- 
1.7.10.4


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      parent reply	other threads:[~2012-09-26 13:18 UTC|newest]

Thread overview: 4+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2012-09-26 13:17 [PATCH 1/3] davinci_emac: return 0 on successful transmit Jan Luebbe
2012-09-26 13:17 ` [PATCH 2/3] davinci_emac: adjust to new phylib framework Jan Luebbe
2012-09-26 13:59   ` Jean-Christophe PLAGNIOL-VILLARD
2012-09-26 13:17 ` Jan Luebbe [this message]

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