diff --git a/target-ppc/translate_init.c b/target-ppc/translate_init.c
index d07e186416fe20313fa80bd0c3b24e71719320a1..4d94015942fc2f2861a899323bbbd4852556b6ec 100644
--- a/target-ppc/translate_init.c
+++ b/target-ppc/translate_init.c
@@ -6699,6 +6699,8 @@ POWERPC_FAMILY(970)(ObjectClass *oc, void *data)
     pcc->flags = POWERPC_FLAG_VRE | POWERPC_FLAG_SE |
                  POWERPC_FLAG_BE | POWERPC_FLAG_PMM |
                  POWERPC_FLAG_BUS_CLK;
+    pcc->l1_dcache_size = 0x8000;
+    pcc->l1_icache_size = 0x10000;
 }
 
 static int check_pow_970FX (CPUPPCState *env)
@@ -6791,6 +6793,8 @@ POWERPC_FAMILY(970FX)(ObjectClass *oc, void *data)
     pcc->flags = POWERPC_FLAG_VRE | POWERPC_FLAG_SE |
                  POWERPC_FLAG_BE | POWERPC_FLAG_PMM |
                  POWERPC_FLAG_BUS_CLK;
+    pcc->l1_dcache_size = 0x8000;
+    pcc->l1_icache_size = 0x10000;
 }
 
 static int check_pow_970MP (CPUPPCState *env)
@@ -6877,6 +6881,8 @@ POWERPC_FAMILY(970MP)(ObjectClass *oc, void *data)
     pcc->flags = POWERPC_FLAG_VRE | POWERPC_FLAG_SE |
                  POWERPC_FLAG_BE | POWERPC_FLAG_PMM |
                  POWERPC_FLAG_BUS_CLK;
+    pcc->l1_dcache_size = 0x8000;
+    pcc->l1_icache_size = 0x10000;
 }
 
 static void init_proc_power5plus(CPUPPCState *env)
@@ -6967,6 +6973,8 @@ POWERPC_FAMILY(POWER5P)(ObjectClass *oc, void *data)
     pcc->flags = POWERPC_FLAG_VRE | POWERPC_FLAG_SE |
                  POWERPC_FLAG_BE | POWERPC_FLAG_PMM |
                  POWERPC_FLAG_BUS_CLK;
+    pcc->l1_dcache_size = 0x8000;
+    pcc->l1_icache_size = 0x10000;
 }
 
 static void init_proc_POWER7 (CPUPPCState *env)