SMC91111: Fix compilation warnings

This patch fixes the following warning messages coming out of
'drivers/net/smc91111.h' when compiled for 'vexpress_aemv8a':

warning: cast to pointer from integer of different size [-Wint-to-pointer-cast]

Currently this issue seems to surface when SMSC is compiled for 64-bit
ARMv8 platforms, so the change is protected under CONFIG_ARM64, so that
it doesn't break other existing platforms.

In addition this patch tries to fix some checkpatch errors and warnings
(others related to camel-casing and volatile usage will be addressed
by a later patch).

This fix has been tested on both ARMv8 foundation model v1 and v2.
Signed-off-by: NBhupesh Sharma <bhupesh.sharma@freescale.com>

drivers/net/smc91111.h

@@ -248,17 +248,26 @@ struct smc91111_priv{
 #define	SMC_inw(a,r)	(*((volatile word *)((a)->iobase+((r)<<1))))
 #elif CONFIG_BLACKFIN
 #define	SMC_inw(a,r)	({ word __v = (*((volatile word *)((a)->iobase+(r)))); SSYNC(); __v;})
+#elif CONFIG_ARM64
+#define	SMC_inw(a, r)	(*((volatile word*)((a)->iobase+((dword)(r)))))
 #else
-#define	SMC_inw(a,r)	(*((volatile word *)((a)->iobase+(r))))
+#define SMC_inw(a, r)	(*((volatile word*)((a)->iobase+(r))))
 #endif
 #define  SMC_inb(a,r)	(((r)&1) ? SMC_inw((a),(r)&~1)>>8 : SMC_inw((a),(r)&0xFF))
 
 #ifdef CONFIG_ADNPESC1
 #define	SMC_outw(a,d,r)	(*((volatile word *)((a)->iobase+((r)<<1))) = d)
 #elif CONFIG_BLACKFIN
-#define	SMC_outw(a,d,r)	{(*((volatile word *)((a)->iobase+(r))) = d); SSYNC();}
+#define	SMC_outw(a, d, r)	\
+			({	(*((volatile word*)((a)->iobase+((r)))) = d); \
+				SSYNC(); \
+			})
+#elif CONFIG_ARM64
+#define	SMC_outw(a, d, r)	\
+			(*((volatile word*)((a)->iobase+((dword)(r)))) = d)
 #else
-#define	SMC_outw(a,d,r)	(*((volatile word *)((a)->iobase+(r))) = d)
+#define	SMC_outw(a, d, r)	\
+			(*((volatile word*)((a)->iobase+(r))) = d)
 #endif
 #define	SMC_outb(a,d,r)	({	word __d = (byte)(d);  \
 				word __w = SMC_inw((a),(r)&~1);  \