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authorMatt Carlson <mcarlson@broadcom.com>2007-11-12 21:16:17 -0800
committerDavid S. Miller <davem@davemloft.net>2007-11-12 21:16:17 -0800
commit662f38d242488cfdcda7b3684ac610d3e4d568a7 (patch)
treee4557b5d2ec89f5d9b858e29ca40215eade01cef
parente875093c9659d2a9f3923aa9ee1b89ef40cf95b9 (diff)
[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 <mcarlson@broadcom.com> Signed-off-by: Michael Chan <mchan@broadcom.com> Signed-off-by: David S. Miller <davem@davemloft.net>
-rw-r--r--drivers/net/tg3.c6
-rw-r--r--drivers/net/tg3.h6
2 files changed, 12 insertions, 0 deletions
diff --git a/drivers/net/tg3.c b/drivers/net/tg3.c
index 25e57d8ddb5..b5c4799003e 100644
--- a/drivers/net/tg3.c
+++ b/drivers/net/tg3.c
@@ -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:
diff --git a/drivers/net/tg3.h b/drivers/net/tg3.h
index f715b35dfd5..5b799ff2c4d 100644
--- a/drivers/net/tg3.h
+++ b/drivers/net/tg3.h
@@ -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