[ARM] 3259/1: remove phys_ram from struct machine_desc (part 1)

Patch from Nicolas Pitre

This field is redundent since it must be equal to PHYS_OFFSET anyway.

First, let's  use PHYS_OFFSET directly instead.

Signed-off-by: Nicolas Pitre <nico@cam.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>

1 files changed, 3 insertions, 4 deletions

diff --git a/arch/arm/kernel/head.S b/arch/arm/kernel/head.S
index 1e985f2cd70f..1aca1775b28f 100644
--- a/arch/arm/kernel/head.S
+++ b/arch/arm/kernel/head.S
@@ -251,12 +251,11 @@ __turn_mmu_on:
  * r10 = procinfo
  *
  * Returns:
- *  r0, r3, r5, r6, r7 corrupted
+ *  r0, r3, r6, r7 corrupted
  *  r4 = physical page table address
  */
         .type   __create_page_tables, %function
 __create_page_tables:
-        ldr     r5, [r8, #MACHINFO_PHYSRAM]     @ physram
         pgtbl   r4                              @ page table address
 
         /*
@@ -303,7 +302,7 @@ __create_page_tables:
          * Then map first 1MB of ram in case it contains our boot params.
          */
         add     r0, r4, #PAGE_OFFSET >> 18
-        orr     r6, r5, r7
+        orr     r6, r7, #PHYS_OFFSET
         str     r6, [r0]
 
 #ifdef CONFIG_XIP_KERNEL
@@ -311,7 +310,7 @@ __create_page_tables:
          * Map some ram to cover our .data and .bss areas.
          * Mapping 3MB should be plenty.
          */
-        sub     r3, r4, r5
+        sub     r3, r4, #PHYS_OFFSET
         mov     r3, r3, lsr #20
         add     r0, r0, r3, lsl #2
         add     r6, r6, r3, lsl #20