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tg3: Disable GPHY autopowerdown

PATCH Applied Matt Carlson 2 participants 2 messages Nov 10, 2007 – Nov 13, 2007

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Matt Carlson

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PATCH 7/13 tg3: Disable GPHY autopowerdown

New CPMU devices contend with the GPHY for power management. The GPHY autopowerdown feature is enabled by default in the PHY and thus needs to be disabled after every PHY reset.

Signed-off-by Matt Carlson <[email protected]>
Signed-off-by Michael Chan <[email protected]>
drivers/net/tg3.c +6 -0
index 25e57d8..b5c4799 100644
@@ -1117,6 +1117,12 @@ static int tg3_phy_reset(struct tg3 *tp)
 			udelay(40);
 			tw32_f(TG3_CPMU_LSPD_1000MB_CLK, val);
 		}
+
+		/* Disable GPHY autopowerdown. */
+		tg3_writephy(tp, MII_TG3_MISC_SHDW,
+			     MII_TG3_MISC_SHDW_WREN |
+			     MII_TG3_MISC_SHDW_APD_SEL |
+			     MII_TG3_MISC_SHDW_APD_WKTM_84MS);
 	}
 
 out:
drivers/net/tg3.h +6 -0
index f715b35..5b799ff 100644
@@ -1715,6 +1715,12 @@
 #define MII_TG3_ISTAT			0x1a /* IRQ status register */
 #define MII_TG3_IMASK			0x1b /* IRQ mask register */
 
+#define MII_TG3_MISC_SHDW		0x1c
+#define MII_TG3_MISC_SHDW_WREN		0x8000
+#define MII_TG3_MISC_SHDW_APD_SEL	0x2800
+
+#define MII_TG3_MISC_SHDW_APD_WKTM_84MS	0x0001
+
 /* ISTAT/IMASK event bits */
 #define MII_TG3_INT_LINKCHG		0x0002
 #define MII_TG3_INT_SPEEDCHG		0x0004