powerpc: Clear the BSS at the start of early_init with ARCH=ppc
Signed-off-by: Paul Mackerras <paulus@samba.org>
diff --git a/arch/powerpc/kernel/setup_32.c b/arch/powerpc/kernel/setup_32.c
index e68f848..b95f7cf 100644
--- a/arch/powerpc/kernel/setup_32.c
+++ b/arch/powerpc/kernel/setup_32.c
@@ -294,6 +294,10 @@
{
unsigned long offset = reloc_offset();
+ /* First zero the BSS -- use memset_io, some platforms don't have
+ * caches on yet */
+ memset_io(PTRRELOC(&__bss_start), 0, _end - __bss_start);
+
/*
* Identify the CPU type and fix up code sections
* that depend on which cpu we have.