diff options
| author | Matt Carlson <mcarlson@broadcom.com> | 2010-10-14 10:37:40 +0000 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2010-10-17 13:57:43 -0700 |
| commit | ddfc87bfd16f370904c6ff7d23738335dd68d0ce (patch) | |
| tree | 689c905c1a5b6a0005e0468e94affa3daf1383b1 /drivers/net/tg3.c | |
| parent | 3d37728bc55994fdf2888f6c872bdeea03a84cc2 (diff) | |
tg3: Add clause 45 register accessor methods
This patch adds clause 45 register access methods. They will be used in
the following patch.
Signed-off-by: Matt Carlson <mcarlson@broadcom.com>
Reviewed-by: Michael Chan <mchan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net/tg3.c')
| -rw-r--r-- | drivers/net/tg3.c | 46 |
1 files changed, 46 insertions, 0 deletions
diff --git a/drivers/net/tg3.c b/drivers/net/tg3.c index 1c680ff5101..afcc593108c 100644 --- a/drivers/net/tg3.c +++ b/drivers/net/tg3.c @@ -1162,6 +1162,52 @@ static void tg3_mdio_fini(struct tg3 *tp) } } +static int tg3_phy_cl45_write(struct tg3 *tp, u32 devad, u32 addr, u32 val) +{ + int err; + + err = tg3_writephy(tp, MII_TG3_MMD_CTRL, devad); + if (err) + goto done; + + err = tg3_writephy(tp, MII_TG3_MMD_ADDRESS, addr); + if (err) + goto done; + + err = tg3_writephy(tp, MII_TG3_MMD_CTRL, + MII_TG3_MMD_CTRL_DATA_NOINC | devad); + if (err) + goto done; + + err = tg3_writephy(tp, MII_TG3_MMD_ADDRESS, val); + +done: + return err; +} + +static int tg3_phy_cl45_read(struct tg3 *tp, u32 devad, u32 addr, u32 *val) +{ + int err; + + err = tg3_writephy(tp, MII_TG3_MMD_CTRL, devad); + if (err) + goto done; + + err = tg3_writephy(tp, MII_TG3_MMD_ADDRESS, addr); + if (err) + goto done; + + err = tg3_writephy(tp, MII_TG3_MMD_CTRL, + MII_TG3_MMD_CTRL_DATA_NOINC | devad); + if (err) + goto done; + + err = tg3_readphy(tp, MII_TG3_MMD_ADDRESS, val); + +done: + return err; +} + /* tp->lock is held. */ static inline void tg3_generate_fw_event(struct tg3 *tp) { |