diff options
| author |   Matt Carlson <mcarlson@broadcom.com> | 2007-11-12 21:16:17 -0800 |
|---|---|---|
| committer |   David S. Miller <davem@davemloft.net> | 2007-11-12 21:16:17 -0800 |
| commit | 662f38d242488cfdcda7b3684ac610d3e4d568a7 (patch) | |
| tree | e4557b5d2ec89f5d9b858e29ca40215eade01cef | |
| parent | [TG3]: CPMU adjustments for loopback tests (diff) | |
| download | linux-dev-662f38d242488cfdcda7b3684ac610d3e4d568a7.tar.xz linux-dev-662f38d242488cfdcda7b3684ac610d3e4d568a7.zip | |
[TG3]: Disable GPHY autopowerdown
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>
| -rw-r--r-- | drivers/net/tg3.c | 6 | ||||
| -rw-r--r-- | drivers/net/tg3.h | 6 |
2 files changed, 12 insertions, 0 deletions
diff --git a/drivers/net/tg3.c b/drivers/net/tg3.c index 25e57d8ddb51..b5c4799003e0 100644 --- a/drivers/net/tg3.c +++ b/drivers/net/tg3.c @@ -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: diff --git a/drivers/net/tg3.h b/drivers/net/tg3.h index f715b35dfd54..5b799ff2c4d6 100644 --- a/drivers/net/tg3.h +++ b/drivers/net/tg3.h @@ -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 |