From: Jay Cliburn <jacliburn@bellsouth.net>
Date: Sat, 10 May 2008 03:12:06 +0000 (-0500)
Subject: atl1: add PHY power save mode
X-Git-Tag: v2.6.26-rc3~65^2~9^2~34
X-Git-Url: https://err.no/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=ff772b27e5f65c1a186e9f0741f0d00ef7002799;p=linux-2.6

atl1: add PHY power save mode

Using vendor-provided magic, add code to enter power save mode
on the PHY.  We'll need this for suspend and wake-on-lan.

Signed-off-by: Jay Cliburn <jacliburn@bellsouth.net>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
---

diff --git a/drivers/net/atlx/atl1.c b/drivers/net/atlx/atl1.c
index 0afe522b8f..3beb44e80b 100644
--- a/drivers/net/atlx/atl1.c
+++ b/drivers/net/atlx/atl1.c
@@ -638,21 +638,18 @@ static s32 atl1_phy_leave_power_saving(struct atl1_hw *hw)
 }
 
 /*
- *TODO: do something or get rid of this
+ * Force the PHY into power saving mode using vendor magic.
  */
 #ifdef CONFIG_PM
-static s32 atl1_phy_enter_power_saving(struct atl1_hw *hw)
+static void atl1_phy_enter_power_saving(struct atl1_hw *hw)
 {
-/*    s32 ret_val;
- *    u16 phy_data;
- */
+	atl1_write_phy_reg(hw, MII_DBG_ADDR, 0);
+	atl1_write_phy_reg(hw, MII_DBG_DATA, 0x124E);
+	atl1_write_phy_reg(hw, MII_DBG_ADDR, 2);
+	atl1_write_phy_reg(hw, MII_DBG_DATA, 0x3000);
+	atl1_write_phy_reg(hw, MII_DBG_ADDR, 3);
+	atl1_write_phy_reg(hw, MII_DBG_DATA, 0);
 
-/*
-    ret_val = atl1_write_phy_reg(hw, ...);
-    ret_val = atl1_write_phy_reg(hw, ...);
-    ....
-*/
-	return 0;
 }
 #endif
 
diff --git a/drivers/net/atlx/atlx.h b/drivers/net/atlx/atlx.h
index 3be7c09734..96721881ad 100644
--- a/drivers/net/atlx/atlx.h
+++ b/drivers/net/atlx/atlx.h
@@ -460,6 +460,9 @@ MODULE_VERSION(ATLX_DRIVER_VERSION);
 #define MII_ATLX_PSSR_100MBS		0x4000	/* 01=100Mbs */
 #define MII_ATLX_PSSR_1000MBS		0x8000	/* 10=1000Mbs */
 
+#define MII_DBG_ADDR			0x1D
+#define MII_DBG_DATA			0x1E
+
 /* PCI Command Register Bit Definitions */
 #define PCI_REG_COMMAND			0x04	/* PCI Command Register */
 #define CMD_IO_SPACE			0x0001