From e84db7272798ed8abb2760a3fcd9c6d89abf99a5 Mon Sep 17 00:00:00 2001 From: Mark Rustad Date: Fri, 1 Apr 2016 12:18:30 -0700 Subject: [PATCH] ixgbe: Introduce function to control MDIO speed Move code that controls MDIO speed into a new function because there will be more MACs that need the control. Signed-off-by: Mark Rustad Tested-by: Andrew Bowers Signed-off-by: Jeff Kirsher --- drivers/net/ethernet/intel/ixgbe/ixgbe_x550.c | 27 ++++++++++++++----- 1 file changed, 21 insertions(+), 6 deletions(-) diff --git a/drivers/net/ethernet/intel/ixgbe/ixgbe_x550.c b/drivers/net/ethernet/intel/ixgbe/ixgbe_x550.c index 3563b862d8ea..0d6cbb0af1a6 100644 --- a/drivers/net/ethernet/intel/ixgbe/ixgbe_x550.c +++ b/drivers/net/ethernet/intel/ixgbe/ixgbe_x550.c @@ -2306,6 +2306,26 @@ static s32 ixgbe_init_ext_t_x550em(struct ixgbe_hw *hw) return status; } +/** + * ixgbe_set_mdio_speed - Set MDIO clock speed + * @hw: pointer to hardware structure + */ +static void ixgbe_set_mdio_speed(struct ixgbe_hw *hw) +{ + u32 hlreg0; + + switch (hw->device_id) { + case IXGBE_DEV_ID_X550EM_X_10G_T: + /* Config MDIO clock speed before the first MDIO PHY access */ + hlreg0 = IXGBE_READ_REG(hw, IXGBE_HLREG0); + hlreg0 &= ~IXGBE_HLREG0_MDCSPD; + IXGBE_WRITE_REG(hw, IXGBE_HLREG0, hlreg0); + break; + default: + break; + } +} + /** ixgbe_reset_hw_X550em - Perform hardware reset ** @hw: pointer to hardware structure ** @@ -2319,7 +2339,6 @@ static s32 ixgbe_reset_hw_X550em(struct ixgbe_hw *hw) s32 status; u32 ctrl = 0; u32 i; - u32 hlreg0; bool link_up = false; /* Call adapter stop to disable Tx/Rx and clear interrupts */ @@ -2405,11 +2424,7 @@ mac_reset_top: hw->mac.num_rar_entries = 128; hw->mac.ops.init_rx_addrs(hw); - if (hw->device_id == IXGBE_DEV_ID_X550EM_X_10G_T) { - hlreg0 = IXGBE_READ_REG(hw, IXGBE_HLREG0); - hlreg0 &= ~IXGBE_HLREG0_MDCSPD; - IXGBE_WRITE_REG(hw, IXGBE_HLREG0, hlreg0); - } + ixgbe_set_mdio_speed(hw); if (hw->device_id == IXGBE_DEV_ID_X550EM_X_SFP) ixgbe_setup_mux_ctl(hw); -- 2.20.1