For some single core ARM systems, the DTs can have a single cpu node without a reg property and #address-cells == 0. This case is valid and should match on cpu #0. Cc: Frank Rowand <frowand.list@xxxxxxxxx> Signed-off-by: Rob Herring <robh@xxxxxxxxxx> --- drivers/of/base.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/drivers/of/base.c b/drivers/of/base.c index 70609d5a2506..6389aeb2f48c 100644 --- a/drivers/of/base.c +++ b/drivers/of/base.c @@ -327,6 +327,8 @@ static bool __of_find_n_match_cpu_property(struct device_node *cpun, ac = of_n_addr_cells(cpun); cell = of_get_property(cpun, prop_name, &prop_len); + if (!cell && !ac && arch_match_cpu_phys_id(cpu, 0)) + return true; if (!cell || !ac) return false; prop_len /= sizeof(*cell) * ac; -- 2.17.1
