net: fsl_mdio: Fix warnings for __iomem pointers

Add the __iomem address space marker for the tsec pointers
to struct tsec_mii_mng memory mapped register regions.
This solves the sparse warnings for mixig normal pointers with
__iomem pointers for tsec. E.g.:

fsl_mdio.c:34:19: warning: incorrect type in argument 1 (different
address spaces)
fsl_mdio.c:34:19:    expected unsigned int volatile [noderef]
<asn:2>*addr
fsl_mdio.c:34:19:    got unsigned int *<noident>
[...]

tsec.c:91:35: warning: incorrect type in argument 1 (different address
spaces)
tsec.c:91:35:    expected struct tsec_mii_mng *phyregs
tsec.c:91:35:    got struct tsec_mii_mng [noderef] <asn:2>*phyregs_sgmii
[...]

tsec.c:680:19: warning: incorrect type in assignment (different address
spaces)
tsec.c:680:19:    expected struct tsec_mii_mng *regs
tsec.c:680:19:    got struct tsec_mii_mng [noderef] <asn:2>*<noident>
[...]

Signed-off-by: Claudiu Manoil <claudiu.manoil@freescale.com>

drivers/net/fsl_mdio.c

@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2010 Freescale Semiconductor, Inc.
+ * Copyright 2009-2010, 2013 Freescale Semiconductor, Inc.
  *	Jun-jie Zhang <b18070@freescale.com>
  *	Mingkai Hu <Mingkai.hu@freescale.com>
  *
@@ -13,7 +13,7 @@
 #include <asm/errno.h>
 #include <asm/fsl_enet.h>
 
-void tsec_local_mdio_write(struct tsec_mii_mng *phyregs, int port_addr,
+void tsec_local_mdio_write(struct tsec_mii_mng __iomem *phyregs, int port_addr,
 		int dev_addr, int regnum, int value)
 {
 	int timeout = 1000000;
@@ -26,7 +26,7 @@ void tsec_local_mdio_write(struct tsec_mii_mng *phyregs, int port_addr,
 		;
 }
 
-int tsec_local_mdio_read(struct tsec_mii_mng *phyregs, int port_addr,
+int tsec_local_mdio_read(struct tsec_mii_mng __iomem *phyregs, int port_addr,
 		int dev_addr, int regnum)
 {
 	int value;
@@ -57,7 +57,8 @@ int tsec_local_mdio_read(struct tsec_mii_mng *phyregs, int port_addr,
 
 static int fsl_pq_mdio_reset(struct mii_dev *bus)
 {
-	struct tsec_mii_mng *regs = bus->priv;
+	struct tsec_mii_mng __iomem *regs =
+		(struct tsec_mii_mng __iomem *)bus->priv;
 
 	/* Reset MII (due to new addresses) */
 	out_be32(&regs->miimcfg, MIIMCFG_RESET_MGMT);
@@ -72,7 +73,8 @@ static int fsl_pq_mdio_reset(struct mii_dev *bus)
 
 int tsec_phy_read(struct mii_dev *bus, int addr, int dev_addr, int regnum)
 {
-	struct tsec_mii_mng *phyregs = bus->priv;
+	struct tsec_mii_mng __iomem *phyregs =
+		(struct tsec_mii_mng __iomem *)bus->priv;
 
 	return tsec_local_mdio_read(phyregs, addr, dev_addr, regnum);
 }
@@ -80,7 +82,8 @@ int tsec_phy_read(struct mii_dev *bus, int addr, int dev_addr, int regnum)
 int tsec_phy_write(struct mii_dev *bus, int addr, int dev_addr, int regnum,
 			u16 value)
 {
-	struct tsec_mii_mng *phyregs = bus->priv;
+	struct tsec_mii_mng __iomem *phyregs =
+		(struct tsec_mii_mng __iomem *)bus->priv;
 
 	tsec_local_mdio_write(phyregs, addr, dev_addr, regnum, value);
 
@@ -101,7 +104,7 @@ int fsl_pq_mdio_init(bd_t *bis, struct fsl_pq_mdio_info *info)
 	bus->reset = fsl_pq_mdio_reset;
 	sprintf(bus->name, info->name);
 
-	bus->priv = info->regs;
+	bus->priv = (void *)info->regs;
 
 	return mdio_register(bus);
 }

include/fsl_mdio.h

@@ -1,5 +1,5 @@
 /*
- * Copyright 2009-2012 Freescale Semiconductor, Inc.
+ * Copyright 2009-2012, 2013 Freescale Semiconductor, Inc.
  *	Jun-jie Zhang <b18070@freescale.com>
  *	Mingkai Hu <Mingkai.hu@freescale.com>
  *
@@ -31,9 +31,9 @@
 #define MIIMIND_BUSY		0x00000001
 #define MIIMIND_NOTVALID	0x00000004
 
-void tsec_local_mdio_write(struct tsec_mii_mng *phyregs, int port_addr,
+void tsec_local_mdio_write(struct tsec_mii_mng __iomem *phyregs, int port_addr,
 		int dev_addr, int reg, int value);
-int tsec_local_mdio_read(struct tsec_mii_mng *phyregs, int port_addr,
+int tsec_local_mdio_read(struct tsec_mii_mng __iomem *phyregs, int port_addr,
 		int dev_addr, int regnum);
 int tsec_phy_read(struct mii_dev *bus, int addr, int dev_addr, int regnum);
 int tsec_phy_write(struct mii_dev *bus, int addr, int dev_addr, int regnum,
@@ -44,7 +44,7 @@ int memac_mdio_read(struct mii_dev *bus, int port_addr, int dev_addr,
 		int regnum);
 
 struct fsl_pq_mdio_info {
-	struct tsec_mii_mng *regs;
+	struct tsec_mii_mng __iomem *regs;
 	char *name;
 };
 int fsl_pq_mdio_init(bd_t *bis, struct fsl_pq_mdio_info *info);