netdev - [PATCH net-next 05/14] tg3: Manage gphy power for CPMU-less devs only

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Date:	Mon, 2 Aug 2010 14:25:59 -0700
From:	"Matt Carlson" <mcarlson@...adcom.com>
To:	davem@...emloft.net
cc:	netdev@...r.kernel.org, andy@...yhouse.net, mcarlson@...adcom.com
Subject: [PATCH net-next 05/14] tg3: Manage gphy power for CPMU-less
 devs only

This patch changes the code to only manage the PCIe gphy power for
CPMU-less devices only.  The CPMU takes over management for newer
chips.

Reviewed-by: Benjamin Li <benli@...adcom.com>
Reviewed-by: Michael Chan <mchan@...adcom.com>
Signed-off-by: Matt Carlson <mcarlson@...adcom.com>
---
 drivers/net/tg3.c |    5 ++++-
 1 files changed, 4 insertions(+), 1 deletions(-)

diff --git a/drivers/net/tg3.c b/drivers/net/tg3.c
index 5d155c5..38979f2 100644
--- a/drivers/net/tg3.c
+++ b/drivers/net/tg3.c
@@ -6948,8 +6948,11 @@ static int tg3_chip_reset(struct tg3 *tp)
 		     tr32(GRC_VCPU_EXT_CTRL) & ~GRC_VCPU_EXT_CTRL_HALT_CPU);
 	}
 
-	if (tp->tg3_flags2 & TG3_FLG2_5705_PLUS)
+	/* Manage gphy power for all CPMU absent PCIe devices. */
+	if ((tp->tg3_flags2 & TG3_FLG2_5705_PLUS) &&
+	    !(tp->tg3_flags & TG3_FLAG_CPMU_PRESENT))
 		val |= GRC_MISC_CFG_KEEP_GPHY_POWER;
+
 	tw32(GRC_MISC_CFG, val);
 
 	/* restore 5701 hardware bug workaround write method */
-- 
1.7.1


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