[PATCH 16/17] xgmac: replace __raw with relaxed IO

Ben Dooks ben.dooks at codethink.co.uk
Fri Feb 8 18:17:46 EST 2013


The xgmac driver is using __raw read and write functions, where it
should be using readl_relaxed and writel_relaxed to avoid any issues
with which endian mode the CPU is running in.

Signed-off-by: Ben Dooks <ben.dooks at codethink.co.uk>
---
 drivers/net/ethernet/calxeda/xgmac.c |   12 ++++++------
 1 file changed, 6 insertions(+), 6 deletions(-)

diff --git a/drivers/net/ethernet/calxeda/xgmac.c b/drivers/net/ethernet/calxeda/xgmac.c
index f91d9b2..08a6f9e 100644
--- a/drivers/net/ethernet/calxeda/xgmac.c
+++ b/drivers/net/ethernet/calxeda/xgmac.c
@@ -1202,7 +1202,7 @@ static int xgmac_poll(struct napi_struct *napi, int budget)
 
 	if (work_done < budget) {
 		napi_complete(napi);
-		__raw_writel(DMA_INTR_DEFAULT_MASK, priv->base + XGMAC_DMA_INTR_ENA);
+		writel_relaxed(DMA_INTR_DEFAULT_MASK, priv->base + XGMAC_DMA_INTR_ENA);
 	}
 	return work_done;
 }
@@ -1347,7 +1347,7 @@ static irqreturn_t xgmac_pmt_interrupt(int irq, void *dev_id)
 	struct xgmac_priv *priv = netdev_priv(dev);
 	void __iomem *ioaddr = priv->base;
 
-	intr_status = __raw_readl(ioaddr + XGMAC_INT_STAT);
+	intr_status = readl_relaxed(ioaddr + XGMAC_INT_STAT);
 	if (intr_status & XGMAC_INT_STAT_PMT) {
 		netdev_dbg(priv->dev, "received Magic frame\n");
 		/* clear the PMT bits 5 and 6 by reading the PMT */
@@ -1365,9 +1365,9 @@ static irqreturn_t xgmac_interrupt(int irq, void *dev_id)
 	struct xgmac_extra_stats *x = &priv->xstats;
 
 	/* read the status register (CSR5) */
-	intr_status = __raw_readl(priv->base + XGMAC_DMA_STATUS);
-	intr_status &= __raw_readl(priv->base + XGMAC_DMA_INTR_ENA);
-	__raw_writel(intr_status, priv->base + XGMAC_DMA_STATUS);
+	intr_status = readl_relaxed(priv->base + XGMAC_DMA_STATUS);
+	intr_status &= readl_relaxed(priv->base + XGMAC_DMA_INTR_ENA);
+	writel_relaxed(intr_status, priv->base + XGMAC_DMA_STATUS);
 
 	/* It displays the DMA process states (CSR5 register) */
 	/* ABNORMAL interrupts */
@@ -1403,7 +1403,7 @@ static irqreturn_t xgmac_interrupt(int irq, void *dev_id)
 
 	/* TX/RX NORMAL interrupts */
 	if (intr_status & (DMA_STATUS_RI | DMA_STATUS_TU | DMA_STATUS_TI)) {
-		__raw_writel(DMA_INTR_ABNORMAL, priv->base + XGMAC_DMA_INTR_ENA);
+		writel_relaxed(DMA_INTR_ABNORMAL, priv->base + XGMAC_DMA_INTR_ENA);
 		napi_schedule(&priv->napi);
 	}
 
-- 
1.7.10.4




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