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-rw-r--r--hdata/spira.c5
1 files changed, 4 insertions, 1 deletions
diff --git a/hdata/spira.c b/hdata/spira.c
index 2dd0dd36..56218709 100644
--- a/hdata/spira.c
+++ b/hdata/spira.c
@@ -281,7 +281,10 @@ static struct dt_node *add_xscom_node(uint64_t base, uint32_t hw_id,
}
dt_add_property_u64s(node, "reg", addr, size);
- /* Derive bus frquency */
+ /*
+ * The bus-frequency of the xscom node is actually the PIB/PCB
+ * frequency. It is derived from the nest-clock via a 4:1 divider
+ */
freq = dt_prop_get_u64_def(dt_root, "nest-frequency", 0);
freq /= 4;
if (freq)
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