sky2: FE+ Phy initialization

One more snippet of PHY initialization required for FE+ chips.
Discovered in latest sk98lin 10.21.1.3 driver.

Please apply to 2.6.23.

Signed-off-by: Stephen Hemminger <shemminger@linux-foundation.org>
Signed-off-by: Jeff Garzik <jeff@garzik.org>

1 files changed, 10 insertions, 0 deletions

diff --git a/drivers/net/sky2.c b/drivers/net/sky2.c
index eaffe551d1d8..f3a8243219ae 100644
--- a/drivers/net/sky2.c
+++ b/drivers/net/sky2.c
@@ -338,6 +338,16 @@ static void sky2_phy_init(struct sky2_hw *hw, unsigned port)
                 if (!(hw->flags & SKY2_HW_GIGABIT)) {
                         /* enable automatic crossover */
                         ctrl |= PHY_M_PC_MDI_XMODE(PHY_M_PC_ENA_AUTO) >> 1;
+
+                        if (hw->chip_id == CHIP_ID_YUKON_FE_P &&
+                            hw->chip_rev == CHIP_REV_YU_FE2_A0) {
+                                u16 spec;
+
+                                /* Enable Class A driver for FE+ A0 */
+                                spec = gm_phy_read(hw, port, PHY_MARV_FE_SPEC_2);
+                                spec |= PHY_M_FESC_SEL_CL_A;
+                                gm_phy_write(hw, port, PHY_MARV_FE_SPEC_2, spec);
+                        }
                 } else {
                         /* disable energy detect */
                         ctrl &= ~PHY_M_PC_EN_DET_MSK;