net: sxgbe: sw reset moved to probe function

This patch moves sw reset to probe function because
sw reset is needed early stage before open function.

Signed-off-by: Byungho An <bh74.an@samsung.net>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/drivers/net/ethernet/samsung/sxgbe/sxgbe_dma.c b/drivers/net/ethernet/samsung/sxgbe/sxgbe_dma.c
index 4d989ff..bb9b5b8 100644 (file)
--- a/drivers/net/ethernet/samsung/sxgbe/sxgbe_dma.c
+++ b/drivers/net/ethernet/samsung/sxgbe/sxgbe_dma.c
@@ -23,21 +23,8 @@
 /* DMA core initialization */
 static int sxgbe_dma_init(void __iomem *ioaddr, int fix_burst, int burst_map)
 {
-       int retry_count = 10;
        u32 reg_val;
 
-       /* reset the DMA */
-       writel(SXGBE_DMA_SOFT_RESET, ioaddr + SXGBE_DMA_MODE_REG);
-       while (retry_count--) {
-               if (!(readl(ioaddr + SXGBE_DMA_MODE_REG) &
-                     SXGBE_DMA_SOFT_RESET))
-                       break;
-               mdelay(10);
-       }
-
-       if (retry_count < 0)
-               return -EBUSY;
-
        reg_val = readl(ioaddr + SXGBE_DMA_SYSBUS_MODE_REG);
 
        /* if fix_burst = 0, Set UNDEF = 1 of DMA_Sys_Mode Register.

diff --git a/drivers/net/ethernet/samsung/sxgbe/sxgbe_main.c b/drivers/net/ethernet/samsung/sxgbe/sxgbe_main.c
index 27e8c82..6ad7b3a 100644 (file)
--- a/drivers/net/ethernet/samsung/sxgbe/sxgbe_main.c
+++ b/drivers/net/ethernet/samsung/sxgbe/sxgbe_main.c
@@ -2070,6 +2070,24 @@ static int sxgbe_hw_init(struct sxgbe_priv_data * const priv)
        return 0;
 }
 
+static int sxgbe_sw_reset(void __iomem *addr)
+{
+       int retry_count = 10;
+
+       writel(SXGBE_DMA_SOFT_RESET, addr + SXGBE_DMA_MODE_REG);
+       while (retry_count--) {
+               if (!(readl(addr + SXGBE_DMA_MODE_REG) &
+                     SXGBE_DMA_SOFT_RESET))
+                       break;
+               mdelay(10);
+       }
+
+       if (retry_count < 0)
+               return -EBUSY;
+
+       return 0;
+}
+
 /**
  * sxgbe_drv_probe
  * @device: device pointer
@@ -2102,6 +2120,10 @@ struct sxgbe_priv_data *sxgbe_drv_probe(struct device *device,
        priv->plat = plat_dat;
        priv->ioaddr = addr;
 
+       ret = sxgbe_sw_reset(priv->ioaddr);
+       if (ret)
+               goto error_free_netdev;
+
        /* Verify driver arguments */
        sxgbe_verify_args();