diff --git a/target/ppc/cpu_init.c b/target/ppc/cpu_init.c
index 38bcc6b607..36d6377a51 100644
--- a/target/ppc/cpu_init.c
+++ b/target/ppc/cpu_init.c
@@ -466,8 +466,7 @@ static void register_6xx_7xx_soft_tlb(CPUPPCState *env, int nb_tlbs, int nb_ways
 #endif
 }
 
-/* SPR common to MPC755 and G2 */
-static void register_G2_755_sprs(CPUPPCState *env)
+static void register_755_sprs(CPUPPCState *env)
 {
     /* SGPRs */
     spr_register(env, SPR_SPRG4, "SPRG4",
@@ -783,6 +782,23 @@ static void register_G2_sprs(CPUPPCState *env)
                  &spr_read_generic, &spr_write_generic,
                  0x00000000);
 
+    /* SGPRs */
+    spr_register(env, SPR_SPRG4, "SPRG4",
+                 SPR_NOACCESS, SPR_NOACCESS,
+                 &spr_read_generic, &spr_write_generic,
+                 0x00000000);
+    spr_register(env, SPR_SPRG5, "SPRG5",
+                 SPR_NOACCESS, SPR_NOACCESS,
+                 &spr_read_generic, &spr_write_generic,
+                 0x00000000);
+    spr_register(env, SPR_SPRG6, "SPRG6",
+                 SPR_NOACCESS, SPR_NOACCESS,
+                 &spr_read_generic, &spr_write_generic,
+                 0x00000000);
+    spr_register(env, SPR_SPRG7, "SPRG7",
+                 SPR_NOACCESS, SPR_NOACCESS,
+                 &spr_read_generic, &spr_write_generic,
+                 0x00000000);
 }
 
 static void register_74xx_sprs(CPUPPCState *env)
@@ -2848,7 +2864,6 @@ static void init_proc_G2(CPUPPCState *env)
 {
     register_ne_601_sprs(env);
     register_sdr1_sprs(env);
-    register_G2_755_sprs(env);
     register_G2_sprs(env);
 
     /* Memory management */
@@ -4470,7 +4485,7 @@ static void init_proc_745(CPUPPCState *env)
     register_ne_601_sprs(env);
     register_sdr1_sprs(env);
     register_7xx_sprs(env);
-    register_G2_755_sprs(env);
+    register_755_sprs(env);
     /* Thermal management */
     register_thrm_sprs(env);
     /* Hardware implementation registers */
@@ -4543,7 +4558,7 @@ static void init_proc_755(CPUPPCState *env)
     register_ne_601_sprs(env);
     register_sdr1_sprs(env);
     register_7xx_sprs(env);
-    register_G2_755_sprs(env);
+    register_755_sprs(env);
     /* L2 cache control */
     spr_register(env, SPR_L2CR, "L2CR",
                  SPR_NOACCESS, SPR_NOACCESS,