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authorPaul Mackerras <paulus@samba.org>2006-01-14 15:04:06 +1100
committerPaul Mackerras <paulus@samba.org>2006-01-14 15:04:06 +1100
commit66a45dd3620ee5f913ba1af3d2dca8b9bdfa2b96 (patch)
treef98b25a1004d6e6bc84244186db61e76d5b2fe1c /arch/powerpc/boot/prom.h
parent36874579dbf4cafa31486d4207c6807efbbf1378 (diff)
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>
Diffstat (limited to 'arch/powerpc/boot/prom.h')
-rw-r--r--arch/powerpc/boot/prom.h36
1 files changed, 26 insertions, 10 deletions
diff --git a/arch/powerpc/boot/prom.h b/arch/powerpc/boot/prom.h
index 96ab5aec740..3e2ddd4a5a8 100644
--- a/arch/powerpc/boot/prom.h
+++ b/arch/powerpc/boot/prom.h
@@ -1,18 +1,34 @@
#ifndef _PPC_BOOT_PROM_H_
#define _PPC_BOOT_PROM_H_
+typedef void *phandle;
+typedef void *ihandle;
+
extern int (*prom) (void *);
-extern void *chosen_handle;
+extern phandle chosen_handle;
+extern ihandle stdout;
-extern void *stdin;
-extern void *stdout;
-extern void *stderr;
+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 int read(void *handle, void *ptr, int nb);
-extern void exit(void);
-extern void pause(void);
-extern void *finddevice(const char *);
-extern void *claim(unsigned long virt, unsigned long size, unsigned long align);
-extern int getprop(void *phandle, const char *name, void *buf, int buflen);
+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_ */