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net: systemport: Create helper to set MPD 

Create a helper function to turn on/off MPD, this will be used to avoid
duplicating code as we are going to add additional types of wake-up
types.

Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
hifive-unleashed-5.1
Florian Fainelli 2018-08-03 11:08:44 -07:00 committed by David S. Miller
parent 9e85e22713
commit 54226116ad
1 changed files with 13 additions and 7 deletions
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20
drivers/net/ethernet/broadcom/bcmsysport.c
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@ -1041,17 +1041,25 @@ static int bcm_sysport_poll(struct napi_struct *napi, int budget)
return work_done;
}
static void bcm_sysport_resume_from_wol(struct bcm_sysport_priv *priv)
static void mpd_enable_set(struct bcm_sysport_priv *priv, bool enable)
{
u32 reg;
reg = umac_readl(priv, UMAC_MPD_CTRL);
if (enable)
reg |= MPD_EN;
else
reg &= ~MPD_EN;
umac_writel(priv, reg, UMAC_MPD_CTRL);
}
static void bcm_sysport_resume_from_wol(struct bcm_sysport_priv *priv)
{
/* Stop monitoring MPD interrupt */
intrl2_0_mask_set(priv, INTRL2_0_MPD);
/* Clear the MagicPacket detection logic */
reg = umac_readl(priv, UMAC_MPD_CTRL);
reg &= ~MPD_EN;
umac_writel(priv, reg, UMAC_MPD_CTRL);
mpd_enable_set(priv, false);
netif_dbg(priv, wol, priv->netdev, "resumed from WOL\n");
}
@ -2447,9 +2455,7 @@ static int bcm_sysport_suspend_to_wol(struct bcm_sysport_priv *priv)
/* Do not leave the UniMAC RBUF matching only MPD packets */
if (!timeout) {
reg = umac_readl(priv, UMAC_MPD_CTRL);
reg &= ~MPD_EN;
umac_writel(priv, reg, UMAC_MPD_CTRL);
mpd_enable_set(priv, false);
netif_err(priv, wol, ndev, "failed to enter WOL mode\n");
return -ETIMEDOUT;
}