ARM: head.S: only include __turn_mmu_on in the initial identity mapping

__create_page_tables identity maps the region of memory from
__enable_mmu to the end of __turn_mmu_on.

In preparation for including __turn_mmu_on in the .idmap.text section,
this patch modifies the identity mapping so that it only includes the
__turn_mmu_on code.

Reviewed-by: Catalin Marinas <catalin.marinas@arm.com>
Signed-off-by: Will Deacon <will.deacon@arm.com>

1 files changed, 7 insertions, 7 deletions

diff --git a/arch/arm/kernel/head.S b/arch/arm/kernel/head.S
index 566c54c2a1fe..43e3aa3b0573 100644
--- a/arch/arm/kernel/head.S
+++ b/arch/arm/kernel/head.S
@@ -170,11 +170,11 @@ __create_page_tables:
          * Create identity mapping to cater for __enable_mmu.
          * This identity mapping will be removed by paging_init().
          */
-        adr     r0, __enable_mmu_loc
+        adr     r0, __turn_mmu_on_loc
         ldmia   r0, {r3, r5, r6}
         sub     r0, r0, r3                      @ virt->phys offset
-        add     r5, r5, r0                      @ phys __enable_mmu
-        add     r6, r6, r0                      @ phys __enable_mmu_end
+        add     r5, r5, r0                      @ phys __turn_mmu_on
+        add     r6, r6, r0                      @ phys __turn_mmu_on_end
         mov     r5, r5, lsr #SECTION_SHIFT
         mov     r6, r6, lsr #SECTION_SHIFT
 
@@ -287,10 +287,10 @@ __create_page_tables:
 ENDPROC(__create_page_tables)
         .ltorg
         .align
-__enable_mmu_loc:
+__turn_mmu_on_loc:
         .long   .
-        .long   __enable_mmu
-        .long   __enable_mmu_end
+        .long   __turn_mmu_on
+        .long   __turn_mmu_on_end
 
 #if defined(CONFIG_SMP)
         __CPUINIT
@@ -405,7 +405,7 @@ __turn_mmu_on:
         mov     r3, r3
         mov     r3, r13
         mov     pc, r3
-__enable_mmu_end:
+__turn_mmu_on_end:
 ENDPROC(__turn_mmu_on)