From: "Matt Carlson" <mcarlson@broadcom.com>
To: davem@davemloft.net
Cc: netdev@vger.kernel.org, andy@greyhouse.net, mcarlson@broadcom.com
Subject: [PATCH net-next 3/8] tg3: Add clause 45 register accessor methods
Date: Thu, 14 Oct 2010 13:37:40 -0700 [thread overview]
Message-ID: <1287088665-22135-4-git-send-email-mcarlson@broadcom.com> (raw)
This patch adds clause 45 register access methods. They will be used in
the following patch.
Signed-off-by: Matt Carlson <mcarlson@broadcom.com>
Reviewed-by: Michael Chan <mchan@broadcom.com>
---
drivers/net/tg3.c | 46 ++++++++++++++++++++++++++++++++++++++++++++++
drivers/net/tg3.h | 4 ++++
2 files changed, 50 insertions(+), 0 deletions(-)
diff --git a/drivers/net/tg3.c b/drivers/net/tg3.c
index 1c680ff..afcc593 100644
--- a/drivers/net/tg3.c
+++ b/drivers/net/tg3.c
@@ -1162,6 +1162,52 @@ static void tg3_mdio_fini(struct tg3 *tp)
}
}
+static int tg3_phy_cl45_write(struct tg3 *tp, u32 devad, u32 addr, u32 val)
+{
+ int err;
+
+ err = tg3_writephy(tp, MII_TG3_MMD_CTRL, devad);
+ if (err)
+ goto done;
+
+ err = tg3_writephy(tp, MII_TG3_MMD_ADDRESS, addr);
+ if (err)
+ goto done;
+
+ err = tg3_writephy(tp, MII_TG3_MMD_CTRL,
+ MII_TG3_MMD_CTRL_DATA_NOINC | devad);
+ if (err)
+ goto done;
+
+ err = tg3_writephy(tp, MII_TG3_MMD_ADDRESS, val);
+
+done:
+ return err;
+}
+
+static int tg3_phy_cl45_read(struct tg3 *tp, u32 devad, u32 addr, u32 *val)
+{
+ int err;
+
+ err = tg3_writephy(tp, MII_TG3_MMD_CTRL, devad);
+ if (err)
+ goto done;
+
+ err = tg3_writephy(tp, MII_TG3_MMD_ADDRESS, addr);
+ if (err)
+ goto done;
+
+ err = tg3_writephy(tp, MII_TG3_MMD_CTRL,
+ MII_TG3_MMD_CTRL_DATA_NOINC | devad);
+ if (err)
+ goto done;
+
+ err = tg3_readphy(tp, MII_TG3_MMD_ADDRESS, val);
+
+done:
+ return err;
+}
+
/* tp->lock is held. */
static inline void tg3_generate_fw_event(struct tg3 *tp)
{
diff --git a/drivers/net/tg3.h b/drivers/net/tg3.h
index 89553c4..99fc306 100644
--- a/drivers/net/tg3.h
+++ b/drivers/net/tg3.h
@@ -2061,6 +2061,10 @@
#define MII_TG3_CTRL_AS_MASTER 0x0800
#define MII_TG3_CTRL_ENABLE_AS_MASTER 0x1000
+#define MII_TG3_MMD_CTRL 0x0d /* MMD Access Control register */
+#define MII_TG3_MMD_CTRL_DATA_NOINC 0x4000
+#define MII_TG3_MMD_ADDRESS 0x0e /* MMD Address Data register */
+
#define MII_TG3_EXT_CTRL 0x10 /* Extended control register */
#define MII_TG3_EXT_CTRL_FIFO_ELASTIC 0x0001
#define MII_TG3_EXT_CTRL_LNK3_LED_MODE 0x0002
--
1.7.2.2
reply other threads:[~2010-10-14 20:38 UTC|newest]
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