netdev - [PATCH 3/3] TI DaVinci EMAC: Fix incorrect reference to EMAC

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Date:	Thu, 29 Jul 2010 18:04:00 +0530
From:	Sriramakrishnan <srk@...com>
To:	netdev@...r.kernel.org,
	davinci-linux-open-source@...ux.davincidsp.com
Cc:	nsekhar@...com, anantgole@...com, Sriramakrishnan <srk@...com>
Subject: [PATCH 3/3] TI DaVinci EMAC: Fix incorrect reference to EMAC_CTRL registers.

The EMAC modules control registers vary as per the version of the
EMAC module. EMAC_CTRL_EWCTL,EMAC_CTRL_EWINTTCNT are available
only on EMAC_VERSION_1. The emac_dump_regs() function accesses
these indiscriminately. This patch fixes the issue.

Signed-off-by: Sriramakrishnan <srk@...com>
---
 drivers/net/davinci_emac.c |    8 +++++---
 1 files changed, 5 insertions(+), 3 deletions(-)

diff --git a/drivers/net/davinci_emac.c b/drivers/net/davinci_emac.c
index 4ee9af6..12196ad 100644
--- a/drivers/net/davinci_emac.c
+++ b/drivers/net/davinci_emac.c
@@ -565,9 +565,11 @@ static void emac_dump_regs(struct emac_priv *priv)
 
 	/* Print important registers in EMAC */
 	dev_info(emac_dev, "EMAC Basic registers\n");
-	dev_info(emac_dev, "EMAC: EWCTL: %08X, EWINTTCNT: %08X\n",
-		emac_ctrl_read(EMAC_CTRL_EWCTL),
-		emac_ctrl_read(EMAC_CTRL_EWINTTCNT));
+	if (priv->version == EMAC_VERSION_1) {
+		dev_info(emac_dev, "EMAC: EWCTL: %08X, EWINTTCNT: %08X\n",
+			emac_ctrl_read(EMAC_CTRL_EWCTL),
+			emac_ctrl_read(EMAC_CTRL_EWINTTCNT));
+	}
 	dev_info(emac_dev, "EMAC: TXID: %08X %s, RXID: %08X %s\n",
 		emac_read(EMAC_TXIDVER),
 		((emac_read(EMAC_TXCONTROL)) ? "enabled" : "disabled"),
-- 
1.6.2.4

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