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author | Mark A. Greer <mgreer@mvista.com> | 2006-10-16 13:50:05 -0700 |
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committer | Paul Mackerras <paulus@samba.org> | 2006-10-23 12:49:18 +1000 |
commit | 6fb4efc68f5c0e095153510dcfa8b54a42e914ba (patch) | |
tree | 2d03a14beb5ee4cc46e1d1b9f104e9d41b5e9d8e /arch/powerpc/boot/flatdevtree_env.h | |
parent | c888554bf95a5a0a6ac3e2389c6bf1e03e9480ba (diff) | |
download | op-kernel-dev-6fb4efc68f5c0e095153510dcfa8b54a42e914ba.zip op-kernel-dev-6fb4efc68f5c0e095153510dcfa8b54a42e914ba.tar.gz |
[POWERPC] Add flatdevtree source
Add the latest version of the flatdevtree code and corresponding glue.
A phandle table now tracks values returned by ft_find_device().
The value returned by ft_find_device() is a phandle which is really
an index into the phandle table. The phandle table contains the address
of the corresponding node. When the flat dt is edited/moved, the node
pointers in the phandle table are updated accordingly so no phandles kept
by the caller become stale.
Signed-off-by: Mark A. Greer <mgreer@mvista.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>
Diffstat (limited to 'arch/powerpc/boot/flatdevtree_env.h')
-rw-r--r-- | arch/powerpc/boot/flatdevtree_env.h | 47 |
1 files changed, 47 insertions, 0 deletions
diff --git a/arch/powerpc/boot/flatdevtree_env.h b/arch/powerpc/boot/flatdevtree_env.h new file mode 100644 index 0000000..83bc1c7 --- /dev/null +++ b/arch/powerpc/boot/flatdevtree_env.h @@ -0,0 +1,47 @@ +/* + * This file adds the header file glue so that the shared files + * flatdevicetree.[ch] can compile and work in the powerpc bootwrapper. + * + * strncmp & strchr copied from <file:lib/strings.c> + * Copyright (C) 1991, 1992 Linus Torvalds + * + * Maintained by: Mark A. Greer <mgreer@mvista.com> + */ +#ifndef _PPC_BOOT_FLATDEVTREE_ENV_H_ +#define _PPC_BOOT_FLATDEVTREE_ENV_H_ + +#include <stdarg.h> +#include <stddef.h> +#include "types.h" +#include "string.h" +#include "stdio.h" +#include "ops.h" + +#define be16_to_cpu(x) (x) +#define cpu_to_be16(x) (x) +#define be32_to_cpu(x) (x) +#define cpu_to_be32(x) (x) +#define be64_to_cpu(x) (x) +#define cpu_to_be64(x) (x) + +static inline int strncmp(const char *cs, const char *ct, size_t count) +{ + signed char __res = 0; + + while (count) { + if ((__res = *cs - *ct++) != 0 || !*cs++) + break; + count--; + } + return __res; +} + +static inline char *strchr(const char *s, int c) +{ + for (; *s != (char)c; ++s) + if (*s == '\0') + return NULL; + return (char *)s; +} + +#endif /* _PPC_BOOT_FLATDEVTREE_ENV_H_ */ |