diff options
| author | Byungho An <bh74.an@samsung.com> | 2014-04-29 13:15:15 +0900 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2014-04-30 16:12:22 -0400 |
| commit | 0a0347b1e65d0757024d9db0ffdeafb41a9d14f4 (patch) | |
| tree | 2415c998ec40804f171f683231794f31c41eb6d2 /drivers/net/ethernet/samsung/sxgbe/sxgbe_main.c | |
| parent | d2e752db6d05374a35dddb2e17864fe310fbcf69 (diff) | |
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>
Diffstat (limited to 'drivers/net/ethernet/samsung/sxgbe/sxgbe_main.c')
| -rw-r--r-- | drivers/net/ethernet/samsung/sxgbe/sxgbe_main.c | 22 |
1 files changed, 22 insertions, 0 deletions
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(); |