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| author | andrew <andrew@FreeBSD.org> | 2014-12-19 13:07:36 +0000 |
|---|---|---|
| committer | andrew <andrew@FreeBSD.org> | 2014-12-19 13:07:36 +0000 |
| commit | a5053a1f164651094031cf64577bbdb08a9a7f21 (patch) | |
| tree | b45032c7433b62d284c1a8a63a9f3aa33afaa06d /sys/dev/fdt/fdt_common.c | |
| parent | 936d6a03d2348d0771c4555f8305b565d1ea20ec (diff) | |
| download | FreeBSD-src-a5053a1f164651094031cf64577bbdb08a9a7f21.zip FreeBSD-src-a5053a1f164651094031cf64577bbdb08a9a7f21.tar.gz | |
Add support for empty ranges properties within the tree, some vendor
device trees have these, for example the ARM AArch64 Foundation Model.
Sponsored by: The FreeBSD Foundation
Diffstat (limited to 'sys/dev/fdt/fdt_common.c')
| -rw-r--r-- | sys/dev/fdt/fdt_common.c | 11 |
1 files changed, 8 insertions, 3 deletions
diff --git a/sys/dev/fdt/fdt_common.c b/sys/dev/fdt/fdt_common.c index d99fdf2..f00519e 100644 --- a/sys/dev/fdt/fdt_common.c +++ b/sys/dev/fdt/fdt_common.c @@ -75,6 +75,12 @@ fdt_get_range_by_busaddr(phandle_t node, u_long addr, u_long *base, u_long bus_addr, par_bus_addr, pbase, psize; int err, i, len, tuple_size, tuples; + if (node == 0) { + *base = 0; + *size = ULONG_MAX; + return (0); + } + if ((fdt_addrsize_cells(node, &addr_cells, &size_cells)) != 0) return (ENXIO); /* @@ -91,9 +97,8 @@ fdt_get_range_by_busaddr(phandle_t node, u_long addr, u_long *base, if (len > sizeof(ranges)) return (ENOMEM); if (len == 0) { - *base = 0; - *size = ULONG_MAX; - return (0); + return (fdt_get_range_by_busaddr(OF_parent(node), addr, + base, size)); } if (OF_getprop(node, "ranges", ranges, sizeof(ranges)) <= 0) |
