[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>
diff --git a/arch/arm/kernel/head.S b/arch/arm/kernel/head.S
index 1e985f2..1aca1775 100644
--- a/arch/arm/kernel/head.S
+++ b/arch/arm/kernel/head.S
@@ -251,12 +251,11 @@
* 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 @@
* 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 @@
* 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
