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ARM: no need for nommu to jump through the hoops that mmu does
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nommu can jump directly to __mmap_switched without the absolute
address branching which the mmuful kernel does.

Acked-by: Greg Ungerer <gerg@uclinux.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
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Russell King committed Oct 8, 2010
1 parent 2bfc96a commit f131a08
Showing 1 changed file with 1 addition and 4 deletions.
5 changes: 1 addition & 4 deletions arch/arm/kernel/head-nommu.S
Original file line number Diff line number Diff line change
Expand Up @@ -48,8 +48,6 @@ ENTRY(stext)
movs r8, r5 @ invalid machine (r5=0)?
beq __error_a @ yes, error 'a'

ldr r13, __switch_data @ address to jump to after
@ the initialization is done
adr lr, BSYM(__after_proc_init) @ return (PIC) address
ARM( add pc, r10, #PROCINFO_INITFUNC )
THUMB( add r12, r10, #PROCINFO_INITFUNC )
Expand Down Expand Up @@ -87,8 +85,7 @@ __after_proc_init:
mcr p15, 0, r0, c1, c0, 0 @ write control reg
#endif /* CONFIG_CPU_CP15 */

mov r3, r13
mov pc, r3 @ clear the BSS and jump
b __mmap_switched @ clear the BSS and jump
@ to start_kernel
ENDPROC(__after_proc_init)
.ltorg
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