diff options
| author | Matt Carlson <mcarlson@broadcom.com> | 2009-08-25 10:09:07 +0000 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2009-08-26 15:47:56 -0700 |
| commit | bb85fbb6a98d8edab81599913559c7ff0a963984 (patch) | |
| tree | 3509fc3b02a48597f3dac4d5678db547e33f69a6 | |
| parent | 5e7ccf2003e6a9c35b5aa24953ba5009a1a8b653 (diff) | |
tg3: Tune 5785 clock switching
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>
Signed-off-by: David S. Miller <davem@davemloft.net>
| -rw-r--r-- | drivers/net/tg3.c | 15 | ||||
| -rw-r--r-- | 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 9ae33208358..41e0d40259e 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 636008cf3c8..d096e10ad63 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 |