redonkable/alistair23-linux
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tg3: Add clause 45 register accessor methods

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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>
This commit is contained in:
Matt Carlson 2010-10-14 10:37:40 +00:00 committed by David S. Miller
parent 3d37728bc5
commit ddfc87bfd1
2 changed files with 50 additions and 0 deletions
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46
drivers/net/tg3.c
View file

@ -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)
{

4
drivers/net/tg3.h
View file

@ -2061,6 +2061,10 @@
#define MII_TG3_CTRL_AS_MASTER 0x0800
#define MII_TG3_CTRL_ENABLE_AS_MASTER 0x1000
#define MII_TG3_MMD_CTRL 0x0d /* MMD Access Control register */
#define MII_TG3_MMD_CTRL_DATA_NOINC 0x4000
#define MII_TG3_MMD_ADDRESS 0x0e /* MMD Address Data register */
#define MII_TG3_EXT_CTRL 0x10 /* Extended control register */
#define MII_TG3_EXT_CTRL_FIFO_ELASTIC 0x0001
#define MII_TG3_EXT_CTRL_LNK3_LED_MODE 0x0002