Subject: [PATCH 1/3] net: sh_eth: use ioremap()

From: Yoshihiro Shimoda <[email-masked]>
Date: Wed, 28 Sep 2011 16:48:58 +0900

This patch also changes writel/readl to iowrite32/ioread32.

Signed-off-by: Yoshihiro Shimoda <[email-masked]>
---
 This patch is for net-next.

 drivers/net/ethernet/renesas/sh_eth.c |   38 ++++++++++++++++++++------------
 drivers/net/ethernet/renesas/sh_eth.h |    9 ++++---
 2 files changed, 29 insertions(+), 18 deletions(-)

diff --git a/drivers/net/ethernet/renesas/sh_eth.c b/drivers/net/ethernet/renesas/sh_eth.c
index 4479a45..38ccda5 100644
--- a/drivers/net/ethernet/renesas/sh_eth.c
+++ b/drivers/net/ethernet/renesas/sh_eth.c
@@ -155,18 +155,18 @@ static void sh_eth_chip_reset_giga(struct net_device *ndev)

 	/* save MAHR and MALR */
 	for (i = 0; i < 2; i++) {
-		malr[i] = readl(GIGA_MALR(i));
-		mahr[i] = readl(GIGA_MAHR(i));
+		malr[i] = ioread32((void *)GIGA_MALR(i));
+		mahr[i] = ioread32((void *)GIGA_MAHR(i));
 	}

 	/* reset device */
-	writel(ARSTR_ARSTR, SH_GIGA_ETH_BASE + 0x1800);
+	iowrite32(ARSTR_ARSTR, (void *)(SH_GIGA_ETH_BASE + 0x1800));
 	mdelay(1);

 	/* restore MAHR and MALR */
 	for (i = 0; i < 2; i++) {
-		writel(malr[i], GIGA_MALR(i));
-		writel(mahr[i], GIGA_MAHR(i));
+		iowrite32(malr[i], (void *)GIGA_MALR(i));
+		iowrite32(mahr[i], (void *)GIGA_MAHR(i));
 	}
 }

@@ -515,9 +515,9 @@ static unsigned long sh_eth_get_edtrr_trns(struct sh_eth_private *mdp)
 }

 struct bb_info {
-	void (*set_gate)(unsigned long addr);
+	void (*set_gate)(void *addr);
 	struct mdiobb_ctrl ctrl;
-	u32 addr;
+	void *addr;
 	u32 mmd_msk;/* MMD */
 	u32 mdo_msk;
 	u32 mdi_msk;
@@ -525,21 +525,21 @@ struct bb_info {
 };

 /* PHY bit set */
-static void bb_set(u32 addr, u32 msk)
+static void bb_set(void *addr, u32 msk)
 {
-	writel(readl(addr) | msk, addr);
+	iowrite32(ioread32(addr) | msk, addr);
 }

 /* PHY bit clear */
-static void bb_clr(u32 addr, u32 msk)
+static void bb_clr(void *addr, u32 msk)
 {
-	writel((readl(addr) & ~msk), addr);
+	iowrite32((ioread32(addr) & ~msk), addr);
 }

 /* PHY bit read */
-static int bb_read(u32 addr, u32 msk)
+static int bb_read(void *addr, u32 msk)
 {
-	return (readl(addr) & msk) != 0;
+	return (ioread32(addr) & msk) != 0;
 }

 /* Data I/O pin control */
@@ -1680,7 +1680,7 @@ static int sh_mdio_init(struct net_device *ndev, int id,
 	}

 	/* bitbang init */
-	bitbang->addr = ndev->base_addr + mdp->reg_offset[PIR];
+	bitbang->addr = mdp->addr + mdp->reg_offset[PIR];
 	bitbang->set_gate = pd->set_mdio_gate;
 	bitbang->mdi_msk = 0x08;
 	bitbang->mdo_msk = 0x04;
@@ -1812,6 +1812,13 @@ static int sh_eth_drv_probe(struct platform_device *pdev)
 	ether_setup(ndev);

 	mdp = netdev_priv(ndev);
+	mdp->addr = ioremap(res->start, resource_size(res));
+	if (mdp->addr == NULL) {
+		ret = -ENOMEM;
+		dev_err(&pdev->dev, "ioremap failed.\n");
+		goto out_release;
+	}
+
 	spin_lock_init(&mdp->lock);
 	mdp->pdev = pdev;
 	pm_runtime_enable(&pdev->dev);
@@ -1892,6 +1899,8 @@ out_unregister:

 out_release:
 	/* net_dev free */
+	if (mdp && mdp->addr)
+		iounmap(mdp->addr);
 	if (mdp && mdp->tsu_addr)
 		iounmap(mdp->tsu_addr);
 	if (ndev)
@@ -1910,6 +1919,7 @@ static int sh_eth_drv_remove(struct platform_device *pdev)
 	sh_mdio_release(ndev);
 	unregister_netdev(ndev);
 	pm_runtime_disable(&pdev->dev);
+	iounmap(mdp->addr);
 	free_netdev(ndev);
 	platform_set_drvdata(pdev, NULL);

diff --git a/drivers/net/ethernet/renesas/sh_eth.h b/drivers/net/ethernet/renesas/sh_eth.h
index c3048a6..78e586e 100644
--- a/drivers/net/ethernet/renesas/sh_eth.h
+++ b/drivers/net/ethernet/renesas/sh_eth.h
@@ -762,6 +762,7 @@ struct sh_eth_private {
 	struct platform_device *pdev;
 	struct sh_eth_cpu_data *cd;
 	const u16 *reg_offset;
+	void __iomem *addr;
 	void __iomem *tsu_addr;
 	dma_addr_t rx_desc_dma;
 	dma_addr_t tx_desc_dma;
@@ -811,7 +812,7 @@ static inline void sh_eth_write(struct net_device *ndev, unsigned long data,
 {
 	struct sh_eth_private *mdp = netdev_priv(ndev);

-	writel(data, ndev->base_addr + mdp->reg_offset[enum_index]);
+	iowrite32(data, mdp->addr + mdp->reg_offset[enum_index]);
 }

 static inline unsigned long sh_eth_read(struct net_device *ndev,
@@ -819,19 +820,19 @@ static inline unsigned long sh_eth_read(struct net_device *ndev,
 {
 	struct sh_eth_private *mdp = netdev_priv(ndev);

-	return readl(ndev->base_addr + mdp->reg_offset[enum_index]);
+	return ioread32(mdp->addr + mdp->reg_offset[enum_index]);
 }

 static inline void sh_eth_tsu_write(struct sh_eth_private *mdp,
 				unsigned long data, int enum_index)
 {
-	writel(data, mdp->tsu_addr + mdp->reg_offset[enum_index]);
+	iowrite32(data, mdp->tsu_addr + mdp->reg_offset[enum_index]);
 }

 static inline unsigned long sh_eth_tsu_read(struct sh_eth_private *mdp,
 					int enum_index)
 {
-	return readl(mdp->tsu_addr + mdp->reg_offset[enum_index]);
+	return ioread32(mdp->tsu_addr + mdp->reg_offset[enum_index]);
 }

 #endif	/* #ifndef __SH_ETH_H__ */
-- 
1.7.1