TI Davinci EMAC : add platform specific interrupt enable/disable logic.
On certain SOCs, the EMAC controller is interfaced with a wrapper logic for handling interrupts. This patch implements a platform specific hook to cater to platforms that require custom interrupt handling logic Signed-off-by: Sriramakrishnan <srk@ti.com> Acked-by: Chaithrika U S <chaithrika@ti.com> Acked-by: David S. Miller <davem@davemloft.net> Signed-off-by: Kevin Hilman <khilman@deeprootsystems.com>
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@ -487,6 +487,9 @@ struct emac_priv {
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struct mii_bus *mii_bus;
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struct phy_device *phydev;
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spinlock_t lock;
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/*platform specific members*/
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void (*int_enable) (void);
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void (*int_disable) (void);
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};
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/* clock frequency for EMAC */
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@ -1001,6 +1004,8 @@ static void emac_int_disable(struct emac_priv *priv)
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emac_ctrl_write(EMAC_DM646X_CMRXINTEN, 0x0);
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emac_ctrl_write(EMAC_DM646X_CMTXINTEN, 0x0);
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/* NOTE: Rx Threshold and Misc interrupts are not disabled */
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if (priv->int_disable)
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priv->int_disable();
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local_irq_restore(flags);
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@ -1020,6 +1025,9 @@ static void emac_int_disable(struct emac_priv *priv)
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static void emac_int_enable(struct emac_priv *priv)
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{
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if (priv->version == EMAC_VERSION_2) {
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if (priv->int_enable)
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priv->int_enable();
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emac_ctrl_write(EMAC_DM646X_CMRXINTEN, 0xff);
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emac_ctrl_write(EMAC_DM646X_CMTXINTEN, 0xff);
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@ -2659,6 +2667,9 @@ static int __devinit davinci_emac_probe(struct platform_device *pdev)
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priv->phy_mask = pdata->phy_mask;
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priv->rmii_en = pdata->rmii_en;
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priv->version = pdata->version;
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priv->int_enable = pdata->interrupt_enable;
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priv->int_disable = pdata->interrupt_disable;
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emac_dev = &ndev->dev;
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/* Get EMAC platform data */
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res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
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@ -25,6 +25,8 @@ struct emac_platform_data {
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u32 mdio_max_freq;
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u8 rmii_en;
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u8 version;
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void (*interrupt_enable) (void);
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void (*interrupt_disable) (void);
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};
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enum {
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