diff options
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/net/ethernet/marvell/mvpp2/mvpp2_main.c | 13 |
1 files changed, 8 insertions, 5 deletions
diff --git a/drivers/net/ethernet/marvell/mvpp2/mvpp2_main.c b/drivers/net/ethernet/marvell/mvpp2/mvpp2_main.c index e9cbbe871a1a..b1add5c6b75c 100644 --- a/drivers/net/ethernet/marvell/mvpp2/mvpp2_main.c +++ b/drivers/net/ethernet/marvell/mvpp2/mvpp2_main.c @@ -4505,10 +4505,11 @@ static void mvpp2_mac_an_restart(struct net_device *dev) static void mvpp2_xlg_config(struct mvpp2_port *port, unsigned int mode, const struct phylink_link_state *state) { - u32 ctrl0, ctrl4; + u32 old_ctrl0, ctrl0; + u32 old_ctrl4, ctrl4; - ctrl0 = readl(port->base + MVPP22_XLG_CTRL0_REG); - ctrl4 = readl(port->base + MVPP22_XLG_CTRL4_REG); + old_ctrl0 = ctrl0 = readl(port->base + MVPP22_XLG_CTRL0_REG); + old_ctrl4 = ctrl4 = readl(port->base + MVPP22_XLG_CTRL4_REG); if (state->pause & MLO_PAUSE_TX) ctrl0 |= MVPP22_XLG_CTRL0_TX_FLOW_CTRL_EN; @@ -4524,8 +4525,10 @@ static void mvpp2_xlg_config(struct mvpp2_port *port, unsigned int mode, ctrl4 |= MVPP22_XLG_CTRL4_FWD_FC | MVPP22_XLG_CTRL4_FWD_PFC | MVPP22_XLG_CTRL4_EN_IDLE_CHECK; - writel(ctrl0, port->base + MVPP22_XLG_CTRL0_REG); - writel(ctrl4, port->base + MVPP22_XLG_CTRL4_REG); + if (old_ctrl0 != ctrl0) + writel(ctrl0, port->base + MVPP22_XLG_CTRL0_REG); + if (old_ctrl4 != ctrl4) + writel(ctrl4, port->base + MVPP22_XLG_CTRL4_REG); } static void mvpp2_gmac_config(struct mvpp2_port *port, unsigned int mode, |