sh: Add flag for MMU PTEA capability.

Add CPU_HAS_PTEA, refactor some of the cpu flag settings.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>

1 files changed, 4 insertions, 8 deletions

diff --git a/arch/sh/mm/tlb-sh4.c b/arch/sh/mm/tlb-sh4.c
index 96e5fb0ac4fa..812b2d567de2 100644
--- a/arch/sh/mm/tlb-sh4.c
+++ b/arch/sh/mm/tlb-sh4.c
@@ -36,9 +36,6 @@ void update_mmu_cache(struct vm_area_struct * vma,
         unsigned long vpn;
         struct page *page;
         unsigned long pfn;
-#ifndef CONFIG_CPU_SUBTYPE_SH7780
-        unsigned long ptea;
-#endif
 
         /* Ptrace may call this routine. */
         if (vma && current->active_mm != vma->vm_mm)
@@ -61,12 +58,11 @@ void update_mmu_cache(struct vm_area_struct * vma,
         ctrl_outl(vpn, MMU_PTEH);
 
         pteval = pte_val(pte);
-#ifndef CONFIG_CPU_SUBTYPE_SH7780
+
         /* Set PTEA register */
-        /* TODO: make this look less hacky */
-        ptea = ((pteval >> 28) & 0xe) | (pteval & 0x1);
-        ctrl_outl(ptea, MMU_PTEA);
-#endif
+        if (cpu_data->flags & CPU_HAS_PTEA)
+                /* TODO: make this look less hacky */
+                ctrl_outl(((pteval >> 28) & 0xe) | (pteval & 0x1), MMU_PTEA);
 
         /* Set PTEL register */
         pteval &= _PAGE_FLAGS_HARDWARE_MASK; /* drop software flags */