[PATCH 06/12] tg3: Tune 5785 clock switching
From: Matt Carlson <hidden>
Date: 2009-08-25 20:34:25
Subsystem:
networking drivers, the rest · Maintainers:
Andrew Lunn, "David S. Miller", Eric Dumazet, Jakub Kicinski, Paolo Abeni, Linus Torvalds
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 <redacted> Reviewed-by: Michael Chan <mchan@broadcom.com> Reviewed-by: Benjamin Li <redacted> --- 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
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1.6.3.3