linux_dsm_epyc7002/arch/powerpc/boot/prom.h
Paul Mackerras 66a45dd362 powerpc: Make COFF zImages for old 32-bit powermacs
This adds code to build zImage.coff and/or zImage.initrd.coff when
CONFIG_PPC32 and CONFIG_PPC_PMAC are defined.  It also restructures
the OF client code and adds some workarounds for OF quirks on the
older machines.

Signed-off-by: Paul Mackerras <paulus@samba.org>
2006-01-14 15:04:06 +11:00

35 lines
833 B
C

#ifndef _PPC_BOOT_PROM_H_
#define _PPC_BOOT_PROM_H_
typedef void *phandle;
typedef void *ihandle;
extern int (*prom) (void *);
extern phandle chosen_handle;
extern ihandle stdout;
int call_prom(const char *service, int nargs, int nret, ...);
int call_prom_ret(const char *service, int nargs, int nret,
unsigned int *rets, ...);
extern int write(void *handle, void *ptr, int nb);
extern void *claim(unsigned long virt, unsigned long size, unsigned long aln);
static inline void exit(void)
{
call_prom("exit", 0, 0);
}
static inline phandle finddevice(const char *name)
{
return (phandle) call_prom("finddevice", 1, 1, name);
}
static inline int getprop(void *phandle, const char *name,
void *buf, int buflen)
{
return call_prom("getprop", 4, 1, phandle, name, buf, buflen);
}
#endif /* _PPC_BOOT_PROM_H_ */