1 files changed, 13 insertions, 5 deletions

diff --git a/drivers/net/stmmac/dwmac1000_dma.c b/drivers/net/stmmac/dwmac1000_dma.c
index 415805057cb0..ce6163e39cd5 100644
--- a/drivers/net/stmmac/dwmac1000_dma.c
+++ b/drivers/net/stmmac/dwmac1000_dma.c
@@ -29,14 +29,22 @@
 #include "dwmac1000.h"
 #include "dwmac_dma.h"
 
-static int dwmac1000_dma_init(unsigned long ioaddr, int pbl, u32 dma_tx,
+static int dwmac1000_dma_init(void __iomem *ioaddr, int pbl, u32 dma_tx,
                               u32 dma_rx)
 {
         u32 value = readl(ioaddr + DMA_BUS_MODE);
+        int limit;
+
         /* DMA SW reset */
         value |= DMA_BUS_MODE_SFT_RESET;
         writel(value, ioaddr + DMA_BUS_MODE);
-        do {} while ((readl(ioaddr + DMA_BUS_MODE) & DMA_BUS_MODE_SFT_RESET));
+        limit = 15000;
+        while (limit--) {
+                if (!(readl(ioaddr + DMA_BUS_MODE) & DMA_BUS_MODE_SFT_RESET))
+                        break;
+        }
+        if (limit < 0)
+                return -EBUSY;
 
         value = /* DMA_BUS_MODE_FB | */ DMA_BUS_MODE_4PBL |
             ((pbl << DMA_BUS_MODE_PBL_SHIFT) |
@@ -58,7 +66,7 @@ static int dwmac1000_dma_init(unsigned long ioaddr, int pbl, u32 dma_tx,
         return 0;
 }
 
-static void dwmac1000_dma_operation_mode(unsigned long ioaddr, int txmode,
+static void dwmac1000_dma_operation_mode(void __iomem *ioaddr, int txmode,
                                     int rxmode)
 {
         u32 csr6 = readl(ioaddr + DMA_CONTROL);
@@ -111,12 +119,12 @@ static void dwmac1000_dma_operation_mode(unsigned long ioaddr, int txmode,
 
 /* Not yet implemented --- no RMON module */
 static void dwmac1000_dma_diagnostic_fr(void *data,
-                  struct stmmac_extra_stats *x, unsigned long ioaddr)
+                  struct stmmac_extra_stats *x, void __iomem *ioaddr)
 {
         return;
 }
 
-static void dwmac1000_dump_dma_regs(unsigned long ioaddr)
+static void dwmac1000_dump_dma_regs(void __iomem *ioaddr)
 {
         int i;
         pr_info(" DMA registers\n");