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authorFrancesco Virlinzi <francesco.virlinzi@st.com>2011-11-16 21:57:58 +0000
committerDavid S. Miller <davem@davemloft.net>2011-11-17 03:13:41 -0500
commitbbc1754639f771cd2b515fed39b977549b373034 (patch)
tree7f5cd57925266ec2484d5f6f2e0fc2d434a2b82a /drivers/net/ethernet/stmicro/stmmac/dwmac1000_dma.c
parentd9fa7c86f1fca60693beea187c963cfda4a54a06 (diff)
stmmac: use mdelay on timeout of sw reset
This patch uses an mdelay to manage the timeout on sw reset to be independant of cpu_clk. Signed-off-by: Francesco Virlinzi <francesco.virlinzi@st.com> Reviewed-by: Giuseppe Cavallaro <peppe.cavallaro@st.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net/ethernet/stmicro/stmmac/dwmac1000_dma.c')
-rw-r--r--drivers/net/ethernet/stmicro/stmmac/dwmac1000_dma.c3
1 files changed, 2 insertions, 1 deletions
diff --git a/drivers/net/ethernet/stmicro/stmmac/dwmac1000_dma.c b/drivers/net/ethernet/stmicro/stmmac/dwmac1000_dma.c
index da66ac511c4c..4d5402a1d262 100644
--- a/drivers/net/ethernet/stmicro/stmmac/dwmac1000_dma.c
+++ b/drivers/net/ethernet/stmicro/stmmac/dwmac1000_dma.c
@@ -39,10 +39,11 @@ static int dwmac1000_dma_init(void __iomem *ioaddr, int pbl, u32 dma_tx,
/* DMA SW reset */
value |= DMA_BUS_MODE_SFT_RESET;
writel(value, ioaddr + DMA_BUS_MODE);
- limit = 15000;
+ limit = 10;
while (limit--) {
if (!(readl(ioaddr + DMA_BUS_MODE) & DMA_BUS_MODE_SFT_RESET))
break;
+ mdelay(10);
}
if (limit < 0)
return -EBUSY;