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linux-next/arch/powerpc/boot/of.h
Cédric Le Goater 98fd433aa6 powerpc/boot: Define byteswapping routines for little endian
These are not the most efficient versions of swab but the wrapper does
not do much byte swapping. On a big endian cpu, these routines are
a no-op.

Signed-off-by: Cédric Le Goater <clg@fr.ibm.com>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2014-04-28 17:35:56 +10:00

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C

#ifndef _PPC_BOOT_OF_H_
#define _PPC_BOOT_OF_H_
#include "swab.h"
typedef void *phandle;
typedef u32 ihandle;
void of_init(void *promptr);
int of_call_prom(const char *service, int nargs, int nret, ...);
unsigned int of_claim(unsigned long virt, unsigned long size,
unsigned long align);
void *of_vmlinux_alloc(unsigned long size);
void of_exit(void);
void *of_finddevice(const char *name);
int of_getprop(const void *phandle, const char *name, void *buf,
const int buflen);
int of_setprop(const void *phandle, const char *name, const void *buf,
const int buflen);
/* Console functions */
void of_console_init(void);
typedef u32 __be32;
#ifdef __LITTLE_ENDIAN__
#define cpu_to_be32(x) swab32(x)
#define be32_to_cpu(x) swab32(x)
#else
#define cpu_to_be32(x) (x)
#define be32_to_cpu(x) (x)
#endif
#define PROM_ERROR (-1u)
#endif /* _PPC_BOOT_OF_H_ */