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[TG3]: Disable GPHY autopowerdown

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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>
This commit is contained in:
Matt Carlson 2007-11-12 21:16:17 -08:00 committed by David S. Miller
parent e875093c96
commit 662f38d242
2 changed files with 12 additions and 0 deletions
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6
drivers/net/tg3.c
View file

@ -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:

6
drivers/net/tg3.h
View file

@ -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