Blackfin arch: fix bug - Fail to boot jffs2 kernel for BF561 with SMP patch
only if the cplb block overlapped with kernel area, this cplb need be locked
Signed-off-by: Graf Yang <graf.yang@analog.com>
Signed-off-by: Bryan Wu <cooloney@kernel.org>
diff --git a/arch/blackfin/kernel/cplb-nompu/cplbinit.c b/arch/blackfin/kernel/cplb-nompu/cplbinit.c
index 512f8c9..2debc90 100644
--- a/arch/blackfin/kernel/cplb-nompu/cplbinit.c
+++ b/arch/blackfin/kernel/cplb-nompu/cplbinit.c
@@ -188,10 +188,11 @@
static u16 __init lock_kernel_check(u32 start, u32 end)
{
- if ((end <= (u32) _end && end >= (u32)_stext) ||
- (start <= (u32) _end && start >= (u32)_stext))
- return IN_KERNEL;
- return 0;
+ if (start >= (u32)_end || end <= (u32)_stext)
+ return 0;
+
+ /* This cplb block overlapped with kernel area. */
+ return IN_KERNEL;
}
static unsigned short __init
