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>

2 files changed, 22 insertions, 13 deletions

diff --git a/drivers/net/ethernet/samsung/sxgbe/sxgbe_dma.c b/drivers/net/ethernet/samsung/sxgbe/sxgbe_dma.c
index 4d989ff6c978..bb9b5b8afc5f 100644
--- 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 27e8c824b204..6ad7b3aaaada 100644
--- 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();