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ARM: ebsa110: Properly override I/O accessors 

In order to override accessors properly they must be #define'd so that
subsequent generic headers (the one for ARM and finally the architecture
independent one) can properly detect it.

While at it, make all accessors use volatile void __iomem * to avoid a
slew of build warnings.

Signed-off-by: Thierry Reding <treding@nvidia.com>
hifive-unleashed-5.1
Thierry Reding 2014-10-01 14:13:33 +02:00
parent bfb111ec25
commit 2cd0f55961
2 changed files with 25 additions and 14 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

25
arch/arm/mach-ebsa110/include/mach/io.h
View File

@ -29,9 +29,9 @@ u8 __readb(const volatile void __iomem *addr);
u16 __readw(const volatile void __iomem *addr);
u32 __readl(const volatile void __iomem *addr);
void __writeb(u8 val, void __iomem *addr);
void __writew(u16 val, void __iomem *addr);
void __writel(u32 val, void __iomem *addr);
void __writeb(u8 val, volatile void __iomem *addr);
void __writew(u16 val, volatile void __iomem *addr);
void __writel(u32 val, volatile void __iomem *addr);
/*
* Argh, someone forgot the IOCS16 line. We therefore have to handle
@ -62,20 +62,31 @@ void __writel(u32 val, void __iomem *addr);
#define writew(v,b) __writew(v,b)
#define writel(v,b) __writel(v,b)
#define insb insb
extern void insb(unsigned int port, void *buf, int sz);
#define insw insw
extern void insw(unsigned int port, void *buf, int sz);
#define insl insl
extern void insl(unsigned int port, void *buf, int sz);
#define outsb outsb
extern void outsb(unsigned int port, const void *buf, int sz);
#define outsw outsw
extern void outsw(unsigned int port, const void *buf, int sz);
#define outsl outsl
extern void outsl(unsigned int port, const void *buf, int sz);
/* can't support writesb atm */
extern void writesw(void __iomem *addr, const void *data, int wordlen);
extern void writesl(void __iomem *addr, const void *data, int longlen);
#define writesw writesw
extern void writesw(volatile void __iomem *addr, const void *data, int wordlen);
#define writesl writesl
extern void writesl(volatile void __iomem *addr, const void *data, int longlen);
/* can't support readsb atm */
extern void readsw(const void __iomem *addr, void *data, int wordlen);
extern void readsl(const void __iomem *addr, void *data, int longlen);
#define readsw readsw
extern void readsw(const volatile void __iomem *addr, void *data, int wordlen);
#define readsl readsl
extern void readsl(const volatile void __iomem *addr, void *data, int longlen);
#endif

14
arch/arm/mach-ebsa110/io.c
View File

@ -102,7 +102,7 @@ EXPORT_SYMBOL(__readb);
EXPORT_SYMBOL(__readw);
EXPORT_SYMBOL(__readl);
void readsw(const void __iomem *addr, void *data, int len)
void readsw(const volatile void __iomem *addr, void *data, int len)
{
void __iomem *a = __isamem_convert_addr(addr);
@ -112,7 +112,7 @@ void readsw(const void __iomem *addr, void *data, int len)
}
EXPORT_SYMBOL(readsw);
void readsl(const void __iomem *addr, void *data, int len)
void readsl(const volatile void __iomem *addr, void *data, int len)
{
void __iomem *a = __isamem_convert_addr(addr);
@ -122,7 +122,7 @@ void readsl(const void __iomem *addr, void *data, int len)
}
EXPORT_SYMBOL(readsl);
void __writeb(u8 val, void __iomem *addr)
void __writeb(u8 val, volatile void __iomem *addr)
{
void __iomem *a = __isamem_convert_addr(addr);
@ -132,7 +132,7 @@ void __writeb(u8 val, void __iomem *addr)
__raw_writeb(val, a);
}
void __writew(u16 val, void __iomem *addr)
void __writew(u16 val, volatile void __iomem *addr)
{
void __iomem *a = __isamem_convert_addr(addr);
@ -142,7 +142,7 @@ void __writew(u16 val, void __iomem *addr)
__raw_writew(val, a);
}
void __writel(u32 val, void __iomem *addr)
void __writel(u32 val, volatile void __iomem *addr)
{
void __iomem *a = __isamem_convert_addr(addr);
@ -157,7 +157,7 @@ EXPORT_SYMBOL(__writeb);
EXPORT_SYMBOL(__writew);
EXPORT_SYMBOL(__writel);
void writesw(void __iomem *addr, const void *data, int len)
void writesw(volatile void __iomem *addr, const void *data, int len)
{
void __iomem *a = __isamem_convert_addr(addr);
@ -167,7 +167,7 @@ void writesw(void __iomem *addr, const void *data, int len)
}
EXPORT_SYMBOL(writesw);
void writesl(void __iomem *addr, const void *data, int len)
void writesl(volatile void __iomem *addr, const void *data, int len)
{
void __iomem *a = __isamem_convert_addr(addr);