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fsl_ifc: Change IO accessor based on endianness

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IFC IO accressor are set at run time based
on IFC IP registers endianness.IFC node in
DTS file contains information about
endianness.

Signed-off-by: Jaiprakash Singh <b44839@freescale.com>
Signed-off-by: Scott Wood <scottwood@freescale.com>
Acked-by: Brian Norris <computersforpeace@gmail.com>
This commit is contained in:
Jaiprakash Singh
2015-05-20 21:17:11 -05:00
committed by Scott Wood
parent 3fa647bff3
commit cf184dc2dd
4 changed files with 212 additions and 140 deletions
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50
include/linux/fsl_ifc.h
View File

@@ -841,9 +841,59 @@ struct fsl_ifc_ctrl {
u32 nand_stat;
wait_queue_head_t nand_wait;
bool little_endian;
};
extern struct fsl_ifc_ctrl *fsl_ifc_ctrl_dev;
static inline u32 ifc_in32(void __iomem *addr)
{
u32 val;
if (fsl_ifc_ctrl_dev->little_endian)
val = ioread32(addr);
else
val = ioread32be(addr);
return val;
}
static inline u16 ifc_in16(void __iomem *addr)
{
u16 val;
if (fsl_ifc_ctrl_dev->little_endian)
val = ioread16(addr);
else
val = ioread16be(addr);
return val;
}
static inline u8 ifc_in8(void __iomem *addr)
{
return ioread8(addr);
}
static inline void ifc_out32(u32 val, void __iomem *addr)
{
if (fsl_ifc_ctrl_dev->little_endian)
iowrite32(val, addr);
else
iowrite32be(val, addr);
}
static inline void ifc_out16(u16 val, void __iomem *addr)
{
if (fsl_ifc_ctrl_dev->little_endian)
iowrite16(val, addr);
else
iowrite16be(val, addr);
}
static inline void ifc_out8(u8 val, void __iomem *addr)
{
iowrite8(val, addr);
}
#endif /* __ASM_FSL_IFC_H */