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authorMatt Carlson <mcarlson@broadcom.com>2010-12-06 08:28:53 +0000
committerDavid S. Miller <davem@davemloft.net>2010-12-06 11:03:48 -0800
commita386b9011a4687470e6168e2f2a08c468f25f72f (patch)
tree4f4c8d2dd7fe42d85e950302a71290d3db1fcc61 /drivers/net
parenta6b68dab169e2a51e59f43504f1279cbc2afcde8 (diff)
tg3: Relax EEE thresholds
The hardware defaults to fairly aggressive EEE thresholds. While there appear to be no ill effects, this patch relaxes them, just as a precaution. Signed-off-by: Matt Carlson <mcarlson@broadcom.com> Reviewed-by: Benjamin Li <benli@broadcom.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net')
-rw-r--r--drivers/net/tg3.c25
-rw-r--r--drivers/net/tg3.h20
2 files changed, 33 insertions, 12 deletions
diff --git a/drivers/net/tg3.c b/drivers/net/tg3.c
index 81dafc26cdff..bb95c6ecda49 100644
--- a/drivers/net/tg3.c
+++ b/drivers/net/tg3.c
@@ -7819,11 +7819,26 @@ static int tg3_reset_hw(struct tg3 *tp, int reset_phy)
tw32_f(TG3_CPMU_EEE_CTRL,
TG3_CPMU_EEE_CTRL_EXIT_20_1_US);
- tw32_f(TG3_CPMU_EEE_MODE,
- TG3_CPMU_EEEMD_ERLY_L1_XIT_DET |
- TG3_CPMU_EEEMD_LPI_IN_TX |
- TG3_CPMU_EEEMD_LPI_IN_RX |
- TG3_CPMU_EEEMD_EEE_ENABLE);
+ val = TG3_CPMU_EEEMD_ERLY_L1_XIT_DET |
+ TG3_CPMU_EEEMD_LPI_IN_TX |
+ TG3_CPMU_EEEMD_LPI_IN_RX |
+ TG3_CPMU_EEEMD_EEE_ENABLE;
+
+ if (GET_ASIC_REV(tp->pci_chip_rev_id) != ASIC_REV_5717)
+ val |= TG3_CPMU_EEEMD_SND_IDX_DET_EN;
+
+ if (tp->tg3_flags3 & TG3_FLG3_ENABLE_APE)
+ val |= TG3_CPMU_EEEMD_APE_TX_DET_EN;
+
+ tw32_f(TG3_CPMU_EEE_MODE, val);
+
+ tw32_f(TG3_CPMU_EEE_DBTMR1,
+ TG3_CPMU_DBTMR1_PCIEXIT_2047US |
+ TG3_CPMU_DBTMR1_LNKIDLE_2047US);
+
+ tw32_f(TG3_CPMU_EEE_DBTMR2,
+ TG3_CPMU_DBTMR1_APE_TX_2047US |
+ TG3_CPMU_DBTMR2_TXIDXEQ_2047US);
}
if (reset_phy)
diff --git a/drivers/net/tg3.h b/drivers/net/tg3.h
index 6e72c6bd2675..d62c8d937c82 100644
--- a/drivers/net/tg3.h
+++ b/drivers/net/tg3.h
@@ -1094,13 +1094,19 @@
/* 0x3664 --> 0x36b0 unused */
#define TG3_CPMU_EEE_MODE 0x000036b0
-#define TG3_CPMU_EEEMD_ERLY_L1_XIT_DET 0x00000008
-#define TG3_CPMU_EEEMD_LPI_ENABLE 0x00000080
-#define TG3_CPMU_EEEMD_LPI_IN_TX 0x00000100
-#define TG3_CPMU_EEEMD_LPI_IN_RX 0x00000200
-#define TG3_CPMU_EEEMD_EEE_ENABLE 0x00100000
-/* 0x36b4 --> 0x36b8 unused */
-
+#define TG3_CPMU_EEEMD_APE_TX_DET_EN 0x00000004
+#define TG3_CPMU_EEEMD_ERLY_L1_XIT_DET 0x00000008
+#define TG3_CPMU_EEEMD_SND_IDX_DET_EN 0x00000040
+#define TG3_CPMU_EEEMD_LPI_ENABLE 0x00000080
+#define TG3_CPMU_EEEMD_LPI_IN_TX 0x00000100
+#define TG3_CPMU_EEEMD_LPI_IN_RX 0x00000200
+#define TG3_CPMU_EEEMD_EEE_ENABLE 0x00100000
+#define TG3_CPMU_EEE_DBTMR1 0x000036b4
+#define TG3_CPMU_DBTMR1_PCIEXIT_2047US 0x07ff0000
+#define TG3_CPMU_DBTMR1_LNKIDLE_2047US 0x000070ff
+#define TG3_CPMU_EEE_DBTMR2 0x000036b8
+#define TG3_CPMU_DBTMR1_APE_TX_2047US 0x07ff0000
+#define TG3_CPMU_DBTMR2_TXIDXEQ_2047US 0x000070ff
#define TG3_CPMU_EEE_LNKIDL_CTRL 0x000036bc
#define TG3_CPMU_EEE_LNKIDL_PCIE_NL0 0x01000000
#define TG3_CPMU_EEE_LNKIDL_UART_IDL 0x00000004