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fdtdec: Add API to read pci bus-range property

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Add fdtdec_get_pci_bus_range to read bus-range property
values.

Signed-off-by: Suneel Garapati <sgarapati@marvell.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
This commit is contained in:
Suneel Garapati
2019-10-19 15:19:35 -07:00
committed by Stefan Roese
parent 1aa3966173
commit 1db7ee464f
2 changed files with 29 additions and 0 deletions
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16
lib/fdtdec.c
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@@ -243,6 +243,22 @@ int fdtdec_get_pci_bar32(const struct udevice *dev, struct fdt_pci_addr *addr,
return 0;
}
int fdtdec_get_pci_bus_range(const void *blob, int node,
struct fdt_resource *res)
{
const u32 *values;
int len;
values = fdt_getprop(blob, node, "bus-range", &len);
if (!values || len < sizeof(*values) * 2)
return -EINVAL;
res->start = fdt32_to_cpu(*values++);
res->end = fdt32_to_cpu(*values);
return 0;
}
#endif
uint64_t fdtdec_get_uint64(const void *blob, int node, const char *prop_name,