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Commit ddfc87bf authored by Matt Carlson's avatar Matt Carlson Committed by David S. Miller
Browse files

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: default avatarMatt Carlson <mcarlson@broadcom.com>
Reviewed-by: default avatarMichael Chan <mchan@broadcom.com>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent 3d37728b

drivers/net/tg3.c

+46 −0
Original line number Diff line number Diff line
@@ -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)

{

drivers/net/tg3.h

+4 −0
Original line number Diff line number Diff line
@@ -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