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authorPrzemyslaw Marczak <p.marczak@samsung.com>2015-09-30 13:14:50 +0200
committerSimon Glass <sjg@chromium.org>2015-10-03 14:39:19 +0100
commitff0a6358b674a7791ecd120034f4a30d227d3ec7 (patch)
treea2adaee907e1d8ded623403f6c11f1666277c780 /lib
parentd93b9a0709e014557499208e05e2a9c451a5436b (diff)
fdtdec: fix parsing 'reg' property with zero value in '#size-cells'
After rework of lib/fdtdec.c by: commit: 02464e3 fdt: add new fdt address parsing functions the function fdtdec_get_addr() doesn't work as previous, because the implementation assumes that properties '#address-cells' and '#size-cells' are equal to 1, which can be not true sometimes. The new API introduced fdtdec_get_addr_size_auto_parent() for the 'reg' property parsing, but the implementation assumes, that #size-cells can't be less than 1. This causes that the following children's 'reg' property can't be reached: parent@0x0 { #address-cells = <1>; #size-cells = <0>; children@0x100 { reg = < 0x100 >; }; }; Change the condition value from '1' to '0', which allows parsing property with at least zero #size-cells, fixes the issue. Now, fdtdec_get_addr_size_auto_parent() works properly. Tested on: Odroid U3/X2, Trats, Trats2, Odroid XU3, Snow (by Simon). Signed-off-by: Przemyslaw Marczak <p.marczak@samsung.com> Acked-by: Stephen Warren <swarren@nvidia.com> Acked-by: Simon Glass <sjg@chromium.org> Tested-by: Simon Glass <sjg@chromium.org>
Diffstat (limited to 'lib')
-rw-r--r--lib/fdtdec.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/lib/fdtdec.c b/lib/fdtdec.c
index 1fdb4f0d9ce..1a863699348 100644
--- a/lib/fdtdec.c
+++ b/lib/fdtdec.c
@@ -149,7 +149,7 @@ fdt_addr_t fdtdec_get_addr_size_auto_parent(const void *blob, int parent,
}
ns = fdt_size_cells(blob, parent);
- if (ns < 1) {
+ if (ns < 0) {
debug("(bad #size-cells)\n");
return FDT_ADDR_T_NONE;
}