diff --git a/Documentation/powerpc/cpu_families.rst b/Documentation/powerpc/cpu_families.rst
index 9b84e045e7134b70ff5183185ae9d850cae1aae2..eb7e60649b4337419b0f6834b0e2f18ef4b3e67d 100644
--- a/Documentation/powerpc/cpu_families.rst
+++ b/Documentation/powerpc/cpu_families.rst
@@ -10,6 +10,7 @@ Book3S (aka sPAPR)
 ------------------
 
 - Hash MMU (except 603 and e300)
+- Radix MMU (POWER9 and later)
 - Software loaded TLB (603 and e300)
 - Selectable Software loaded TLB in addition to hash MMU (755, 7450, e600)
 - Mix of 32 & 64 bit::
@@ -100,6 +101,18 @@ Book3S (aka sPAPR)
           v
    +--------------+
    |    POWER8    |
+   +--------------+
+          |
+          |
+          v
+   +--------------+
+   |    POWER9    |
+   +--------------+
+          |
+          |
+          v
+   +--------------+
+   |   POWER10    |
    +--------------+