arch/powperpc: Fix start_align due to use of __ffs64() instead ffs64()
Incorrect DDR law was created in case of B4860qds after commit
2d2f490d. Return value of ffs64() differs from __ffs64(), eg.
ffs64(0x80000000) = 0x20
__ffs64(0x80000000) = 0x1f
As a result of this change, callers need to adjust the expected
return value by removing -1.
Signed-off-by: Ashish Kumar <Ashish.Kumar@nxp.com>
Reviewed-by: York Sun <york.sun@nxp.com>
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];