diff options
| author | Eugene Surovegin <ebs@ebshome.net> | 2005-10-29 12:47:41 -0700 |
|---|---|---|
| committer | Jeff Garzik <jgarzik@pobox.com> | 2005-10-29 18:06:54 -0400 |
| commit | 86e7fe705d1b894df0cbb785991c92fa298af8fb (patch) | |
| tree | 696caeca281ad23941a8a4bfeec96728273b5cb6 /drivers/net/ibm_emac | |
| parent | 1b195916dd9111bbaf043d0dcfdc5d6908590c6e (diff) | |
[PATCH] PPC 4xx EMAC driver: fix VSC8201 PHY initialization
* MII registers must override strap pins
* disable "echo" mode to make 10/HDX work (Franz Sirl)
Signed-off-by: Eugene Surovegin <ebs@ebshome.net>
Signed-off-by: Jeff Garzik <jgarzik@pobox.com>
Diffstat (limited to 'drivers/net/ibm_emac')
| -rw-r--r-- | drivers/net/ibm_emac/ibm_emac_phy.c | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/drivers/net/ibm_emac/ibm_emac_phy.c b/drivers/net/ibm_emac/ibm_emac_phy.c index a27e49cfe43b..67935dd33a65 100644 --- a/drivers/net/ibm_emac/ibm_emac_phy.c +++ b/drivers/net/ibm_emac/ibm_emac_phy.c @@ -236,12 +236,16 @@ static struct mii_phy_def genmii_phy_def = { }; /* CIS8201 */ +#define MII_CIS8201_10BTCSR 0x16 +#define TENBTCSR_ECHO_DISABLE 0x2000 #define MII_CIS8201_EPCR 0x17 #define EPCR_MODE_MASK 0x3000 #define EPCR_GMII_MODE 0x0000 #define EPCR_RGMII_MODE 0x1000 #define EPCR_TBI_MODE 0x2000 #define EPCR_RTBI_MODE 0x3000 +#define MII_CIS8201_ACSR 0x1c +#define ACSR_PIN_PRIO_SELECT 0x0004 static int cis8201_init(struct mii_phy *phy) { @@ -269,6 +273,14 @@ static int cis8201_init(struct mii_phy *phy) } phy_write(phy, MII_CIS8201_EPCR, epcr); + + /* MII regs override strap pins */ + phy_write(phy, MII_CIS8201_ACSR, + phy_read(phy, MII_CIS8201_ACSR) | ACSR_PIN_PRIO_SELECT); + + /* Disable TX_EN -> CRS echo mode, otherwise 10/HDX doesn't work */ + phy_write(phy, MII_CIS8201_10BTCSR, + phy_read(phy, MII_CIS8201_10BTCSR) | TENBTCSR_ECHO_DISABLE); return 0; } |