3 files changed, 5 insertions, 1 deletions

diff --git a/arch/microblaze/kernel/entry.S b/arch/microblaze/kernel/entry.S
index acc1f05d1e2c..e3ecb36dd554 100644
--- a/arch/microblaze/kernel/entry.S
+++ b/arch/microblaze/kernel/entry.S
@@ -592,6 +592,8 @@ C_ENTRY(full_exception_trap):
         nop
         mfs     r7, rfsr;               /* save FSR */
         nop
+        mts     rfsr, r0;       /* Clear sticky fsr */
+        nop
         la      r12, r0, full_exception
         set_vms;
         rtbd    r12, 0;
diff --git a/arch/microblaze/kernel/hw_exception_handler.S b/arch/microblaze/kernel/hw_exception_handler.S
index 6b0288ebccd6..2b86c03aa841 100644
--- a/arch/microblaze/kernel/hw_exception_handler.S
+++ b/arch/microblaze/kernel/hw_exception_handler.S
@@ -384,7 +384,7 @@ handle_other_ex: /* Handle Other exceptions here */
         addk    r8, r17, r0; /* Load exception address */
         bralid  r15, full_exception; /* Branch to the handler */
         nop;
-        mts     r0, rfsr;       /* Clear sticky fsr */
+        mts     rfsr, r0;       /* Clear sticky fsr */
         nop
 
         /*
diff --git a/arch/microblaze/kernel/process.c b/arch/microblaze/kernel/process.c
index 4201c743cc9f..c592d475b3d8 100644
--- a/arch/microblaze/kernel/process.c
+++ b/arch/microblaze/kernel/process.c
@@ -235,7 +235,9 @@ void start_thread(struct pt_regs *regs, unsigned long pc, unsigned long usp)
         regs->pc = pc;
         regs->r1 = usp;
         regs->pt_mode = 0;
+#ifdef CONFIG_MMU
         regs->msr |= MSR_UMS;
+#endif
 }
 
 #ifdef CONFIG_MMU