diff --git a/arch/powerpc/cpu/mpc83xx/law.c b/arch/powerpc/cpu/mpc83xx/law.c
index 997aea4..5659ab8 100644
--- a/arch/powerpc/cpu/mpc83xx/law.c
+++ b/arch/powerpc/cpu/mpc83xx/law.c
@@ -19,7 +19,7 @@
 	if (start == 0)
 		start_align = 1ull << (LAW_SIZE_2G + 1);
 	else
-		start_align = 1ull << (__ffs64(start) - 1);
+		start_align = 1ull << (__ffs64(start));
 	law_sz = min(start_align, sz);
 	law_sz_enc = __ilog2_u64(law_sz) - 1;
 
@@ -39,7 +39,7 @@
 	if (sz) {
 		start += law_sz;
 
-		start_align = 1ull << (__ffs64(start) - 1);
+		start_align = 1ull << (__ffs64(start));
 		law_sz = min(start_align, sz);
 		law_sz_enc = __ilog2_u64(law_sz) - 1;
 		ecm = &immap->sysconf.ddrlaw[1];
diff --git a/arch/powerpc/cpu/mpc8xxx/law.c b/arch/powerpc/cpu/mpc8xxx/law.c
index 24baad4..bd79297 100644
--- a/arch/powerpc/cpu/mpc8xxx/law.c
+++ b/arch/powerpc/cpu/mpc8xxx/law.c
@@ -188,7 +188,7 @@
 	if (start == 0)
 		start_align = 1ull << (LAW_SIZE_32G + 1);
 	else
-		start_align = 1ull << (__ffs64(start) - 1);
+		start_align = 1ull << (__ffs64(start));
 	law_sz = min(start_align, sz);
 	law_sz_enc = __ilog2_u64(law_sz) - 1;
 
@@ -203,7 +203,7 @@
 	if (sz) {
 		start += law_sz;
 
-		start_align = 1ull << (__ffs64(start) - 1);
+		start_align = 1ull << (__ffs64(start));
 		law_sz = min(start_align, sz);
 		law_sz_enc = __ilog2_u64(law_sz) - 1;