[ARM] 3971/1: xsc3: get rid of L_PTE_COHERENT

Merge L_PTE_COHERENT with L_PTE_SHARED and free up a L_PTE_* bit.

Signed-off-by: Lennert Buytenhek <buytenh@wantstofly.org>
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>

2 files changed, 4 insertions, 2 deletions

diff --git a/arch/arm/mm/mmu.c b/arch/arm/mm/mmu.c
index f866bf6b97d4..445bc3b951e6 100644
--- a/arch/arm/mm/mmu.c
+++ b/arch/arm/mm/mmu.c
@@ -265,7 +265,7 @@ static void __init build_mem_type_table(void)
         if (arch_is_coherent()) {
                 if (cpu_is_xsc3()) {
                         mem_types[MT_MEMORY].prot_sect |= PMD_SECT_S;
-                        mem_types[MT_MEMORY].prot_pte |= L_PTE_COHERENT;
+                        mem_types[MT_MEMORY].prot_pte |= L_PTE_SHARED;
                 }
         }
 
diff --git a/arch/arm/mm/proc-xsc3.S b/arch/arm/mm/proc-xsc3.S
index c4d778a8619d..85c3523d0a95 100644
--- a/arch/arm/mm/proc-xsc3.S
+++ b/arch/arm/mm/proc-xsc3.S
@@ -371,8 +371,10 @@ ENTRY(cpu_xsc3_switch_mm)
 ENTRY(cpu_xsc3_set_pte)
         str     r1, [r0], #-2048                @ linux version
 
-        bic     r2, r1, #0xdf0                  @ Keep C, B, coherency bits
+        bic     r2, r1, #0xff0                  @ Keep C, B bits
         orr     r2, r2, #PTE_TYPE_EXT           @ extended page
+        tst     r1, #L_PTE_SHARED               @ Shared?
+        orrne   r2, r2, #0x200
 
         eor     r3, r1, #L_PTE_PRESENT | L_PTE_YOUNG | L_PTE_WRITE | L_PTE_DIRTY