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igb: add locking to reads of the i2c interface

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The current implementation of sgmii support isn't correctly locking the
interfaces for reads/writes.  This change pulls the read/write
functionality out of 82575.c and moves it to phy.c.  In addition it
replaces the implementation in 82575.c with one that uses locking around
the relocated i2c interface calls.

Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Alexander Duyck
2009-10-05 06:32:27 +00:00
committed by David S. Miller
parent 008c3422d4
commit bf6f7a928d
3 changed files with 118 additions and 64 deletions
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drivers/net/igb/e1000_phy.h
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@@ -61,6 +61,8 @@ s32 igb_write_phy_reg_igp(struct e1000_hw *hw, u32 offset, u16 data);
s32 igb_phy_has_link(struct e1000_hw *hw, u32 iterations,
u32 usec_interval, bool *success);
s32 igb_phy_init_script_igp3(struct e1000_hw *hw);
s32 igb_read_phy_reg_i2c(struct e1000_hw *hw, u32 offset, u16 *data);
s32 igb_write_phy_reg_i2c(struct e1000_hw *hw, u32 offset, u16 data);
/* IGP01E1000 Specific Registers */
#define IGP01E1000_PHY_PORT_CONFIG 0x10 /* Port Config */