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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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2
lib/fdtdec.c
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@@ -242,7 +242,7 @@ int fdtdec_get_pci_bar32(struct udevice *dev, struct fdt_pci_addr *addr,
uint64_t fdtdec_get_uint64(const void *blob, int node, const char *prop_name,
uint64_t default_val)
{
const uint64_t *cell64;
const unaligned_fdt64_t *cell64;
int length;
cell64 = fdt_getprop(blob, node, prop_name, &length);