Commit a4ae4134 authored Oct 04, 2010 by Russell King

ARM: cleanup boot cpu calling __mmap_switched



This allows us to relocate __mmap_switched and associated data away
from the head section.

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

parent 5085f3ff

arch/arm/kernel/head-common.S

+1 −2

Original line number	Diff line number	Diff line
		@@ -18,7 +18,6 @@
		.align 2
		.type __switch_data, %object
		__switch_data:
		.long __mmap_switched
		.long __data_loc @ r4
		.long _data @ r5
		.long __bss_start @ r6
		@@ -39,7 +38,7 @@ __switch_data:
		* r9 = processor ID
		*/
		__mmap_switched:
		adr r3, __switch_data + 4
		adr r3, __switch_data

		ldmia r3!, {r4, r5, r6, r7}
		cmp r4, r5 @ Copy data segment if needed

arch/arm/kernel/head.S

+2 −1

Original line number	Diff line number	Diff line
		@@ -95,13 +95,14 @@ ENTRY(stext)
		* above. On return, the CPU will be ready for the MMU to be
		* turned on, and r0 will hold the CPU control register value.
		*/
		ldr r13, __switch_data @ address to jump to after
		ldr r13, =__mmap_switched @ address to jump to after
		@ mmu has been enabled
		adr lr, BSYM(__enable_mmu) @ return (PIC) address
		ARM( add pc, r10, #PROCINFO_INITFUNC )
		THUMB( add r12, r10, #PROCINFO_INITFUNC )
		THUMB( mov pc, r12 )
		ENDPROC(stext)
		.ltorg

		#if defined(CONFIG_SMP)
		ENTRY(secondary_startup)