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| author |   Jeremy Kerr <jk@ozlabs.org> | 2015-02-11 12:55:44 +0800 |
|---|---|---|
| committer |   Michael Ellerman <mpe@ellerman.id.au> | 2015-03-16 18:58:31 +1100 |
| commit | 6c87b2202f5414be3acae9df2e1833e8b46c5688 (patch) | |
| tree | 66b618a24bac394d129577d24ecfd423b467ebba /arch/powerpc/boot/of.h | |
| parent | powerpc/boot/fdt: Use unsigned long for pointer casts (diff) | |
| download | linux-dev-6c87b2202f5414be3acae9df2e1833e8b46c5688.tar.xz linux-dev-6c87b2202f5414be3acae9df2e1833e8b46c5688.zip | |
powerpc/boot/fdt: Add little-endian support to libfdt wrappers
For epapr-style boot, we may be little-endian. This change implements
the proper conversion for fdt*_to_cpu and cpu_to_fdt*. We also need the
full cpu_to_* and *_to_cpu macros for this.
Signed-off-by: Jeremy Kerr <jk@ozlabs.org>
Acked-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Diffstat (limited to 'arch/powerpc/boot/of.h')
| -rw-r--r-- | arch/powerpc/boot/of.h | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/arch/powerpc/boot/of.h b/arch/powerpc/boot/of.h index c8c1750aba0c..5603320dce07 100644 --- a/arch/powerpc/boot/of.h +++ b/arch/powerpc/boot/of.h @@ -24,11 +24,19 @@ void of_console_init(void); typedef u32 __be32; #ifdef __LITTLE_ENDIAN__ +#define cpu_to_be16(x) swab16(x) +#define be16_to_cpu(x) swab16(x) #define cpu_to_be32(x) swab32(x) #define be32_to_cpu(x) swab32(x) +#define cpu_to_be64(x) swab64(x) +#define be64_to_cpu(x) swab64(x) #else +#define cpu_to_be16(x) (x) +#define be16_to_cpu(x) (x) #define cpu_to_be32(x) (x) #define be32_to_cpu(x) (x) +#define cpu_to_be64(x) (x) +#define be64_to_cpu(x) (x) #endif #define PROM_ERROR (-1u) |