From: "Matt Carlson" <mcarlson@broadcom.com>
To: davem@davemloft.net
Cc: netdev@vger.kernel.org, andy@greyhouse.net
Subject: [PATCH 06/12] tg3: Tune 5785 clock switching
Date: Tue, 25 Aug 2009 13:09:07 -0700 [thread overview]
Message-ID: <1251232429.25409@xw6200> (raw)
This patch tunes the timeouts the CPMU uses to decide when to switch
from the clocks output by the PHY to internal clock sources.
Signed-off-by: Matt Carlson <mcarlson@broadcom.com>
Reviewed-by: Michael Chan <mchan@broadcom.com>
Reviewed-by: Benjamin Li <benli@broadcom.com>
---
drivers/net/tg3.c | 15 ++++++++++-----
drivers/net/tg3.h | 4 ++++
2 files changed, 14 insertions(+), 5 deletions(-)
diff --git a/drivers/net/tg3.c b/drivers/net/tg3.c
index 9ae3320..41e0d40 100644
--- a/drivers/net/tg3.c
+++ b/drivers/net/tg3.c
@@ -917,7 +917,9 @@ static void tg3_mdio_config_5785(struct tg3 *tp)
tw32(MAC_PHYCFG2, val);
val = tr32(MAC_PHYCFG1);
- val &= ~MAC_PHYCFG1_RGMII_INT;
+ val &= ~(MAC_PHYCFG1_RGMII_INT |
+ MAC_PHYCFG1_RXCLK_TO_MASK | MAC_PHYCFG1_TXCLK_TO_MASK);
+ val |= MAC_PHYCFG1_RXCLK_TIMEOUT | MAC_PHYCFG1_TXCLK_TIMEOUT;
tw32(MAC_PHYCFG1, val);
return;
@@ -933,15 +935,18 @@ static void tg3_mdio_config_5785(struct tg3 *tp)
tw32(MAC_PHYCFG2, val);
- val = tr32(MAC_PHYCFG1) & ~(MAC_PHYCFG1_RGMII_EXT_RX_DEC |
- MAC_PHYCFG1_RGMII_SND_STAT_EN);
- if (tp->tg3_flags3 & TG3_FLG3_RGMII_STD_IBND_DISABLE) {
+ val = tr32(MAC_PHYCFG1);
+ val &= ~(MAC_PHYCFG1_RXCLK_TO_MASK | MAC_PHYCFG1_TXCLK_TO_MASK |
+ MAC_PHYCFG1_RGMII_EXT_RX_DEC | MAC_PHYCFG1_RGMII_SND_STAT_EN);
+ if (!(tp->tg3_flags3 & TG3_FLG3_RGMII_STD_IBND_DISABLE)) {
if (tp->tg3_flags3 & TG3_FLG3_RGMII_EXT_IBND_RX_EN)
val |= MAC_PHYCFG1_RGMII_EXT_RX_DEC;
if (tp->tg3_flags3 & TG3_FLG3_RGMII_EXT_IBND_TX_EN)
val |= MAC_PHYCFG1_RGMII_SND_STAT_EN;
}
- tw32(MAC_PHYCFG1, val | MAC_PHYCFG1_RGMII_INT | MAC_PHYCFG1_TXC_DRV);
+ val |= MAC_PHYCFG1_RXCLK_TIMEOUT | MAC_PHYCFG1_TXCLK_TIMEOUT |
+ MAC_PHYCFG1_RGMII_INT | MAC_PHYCFG1_TXC_DRV;
+ tw32(MAC_PHYCFG1, val);
val = tr32(MAC_EXT_RGMII_MODE);
val &= ~(MAC_RGMII_MODE_RX_INT_B |
diff --git a/drivers/net/tg3.h b/drivers/net/tg3.h
index 636008c..d096e10 100644
--- a/drivers/net/tg3.h
+++ b/drivers/net/tg3.h
@@ -524,6 +524,10 @@
/* 0x598 --> 0x5a0 unused */
#define MAC_PHYCFG1 0x000005a0
#define MAC_PHYCFG1_RGMII_INT 0x00000001
+#define MAC_PHYCFG1_RXCLK_TO_MASK 0x00001ff0
+#define MAC_PHYCFG1_RXCLK_TIMEOUT 0x00001000
+#define MAC_PHYCFG1_TXCLK_TO_MASK 0x01ff0000
+#define MAC_PHYCFG1_TXCLK_TIMEOUT 0x01000000
#define MAC_PHYCFG1_RGMII_EXT_RX_DEC 0x02000000
#define MAC_PHYCFG1_RGMII_SND_STAT_EN 0x04000000
#define MAC_PHYCFG1_TXC_DRV 0x20000000
--
1.6.3.3
reply other threads:[~2009-08-25 20:34 UTC|newest]
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