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-rw-r--r--arch/mips/mm/tlb-r4k.c5
1 files changed, 5 insertions, 0 deletions
diff --git a/arch/mips/mm/tlb-r4k.c b/arch/mips/mm/tlb-r4k.c
index 5037d5868cef..c17d7627f872 100644
--- a/arch/mips/mm/tlb-r4k.c
+++ b/arch/mips/mm/tlb-r4k.c
@@ -19,6 +19,7 @@
#include <asm/cpu.h>
#include <asm/cpu-type.h>
#include <asm/bootinfo.h>
+#include <asm/hazards.h>
#include <asm/mmu_context.h>
#include <asm/pgtable.h>
#include <asm/tlb.h>
@@ -486,6 +487,10 @@ static void r4k_tlb_configure(void)
* be set to fixed-size pages.
*/
write_c0_pagemask(PM_DEFAULT_MASK);
+ back_to_back_c0_hazard();
+ if (read_c0_pagemask() != PM_DEFAULT_MASK)
+ panic("MMU doesn't support PAGE_SIZE=0x%lx", PAGE_SIZE);
+
write_c0_wired(0);
if (current_cpu_type() == CPU_R10000 ||
current_cpu_type() == CPU_R12000 ||