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fdt: Fix alignment issue when reading 64-bits properties from fdt

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The FDT specification [0] gives a requirement of aligning properties on
32-bits. Make sure that the compiler is aware of this constraint when
accessing 64-bits properties.

[0]: https://github.com/devicetree-org/devicetree-specification/blob/master/source/flattened-format.rst

Signed-off-by: Jean-Jacques Hiblot <jjhiblot@ti.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
This commit is contained in:
Jean-Jacques Hiblot
2019-10-22 10:05:22 +02:00
committed by Simon Glass
parent 97b5f9d1a0
commit d60ae4c59d
4 changed files with 4 additions and 3 deletions
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include/linux/libfdt_env.h
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@@ -16,6 +16,7 @@
typedef __be16 fdt16_t;
typedef __be32 fdt32_t;
typedef __be64 fdt64_t;
typedef __be64 unaligned_fdt64_t __aligned(4);
#define fdt32_to_cpu(x) be32_to_cpu(x)
#define cpu_to_fdt32(x) cpu_to_be32(x)