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| author | Russell King <rmk+kernel@arm.linux.org.uk> | 2010-10-01 15:42:02 +0100 |
|---|---|---|
| committer | Russell King <rmk+kernel@arm.linux.org.uk> | 2010-10-08 10:07:27 +0100 |
| commit | f131a0800e286a13839784e554383c0ddfa78bce (patch) | |
| tree | 1bc1645430823bcb2cbc49a510a24db0c76023e2 /arch/arm/kernel/head-nommu.S | |
| parent | 2bfc96a127bc1cc94d26bfaa40159966064f9c8c (diff) | |
| download | linux-f131a0800e286a13839784e554383c0ddfa78bce.tar.gz linux-f131a0800e286a13839784e554383c0ddfa78bce.tar.bz2 linux-f131a0800e286a13839784e554383c0ddfa78bce.zip | |
ARM: no need for nommu to jump through the hoops that mmu does
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>
Diffstat (limited to 'arch/arm/kernel/head-nommu.S')
| -rw-r--r-- | arch/arm/kernel/head-nommu.S | 5 |
1 files changed, 1 insertions, 4 deletions
diff --git a/arch/arm/kernel/head-nommu.S b/arch/arm/kernel/head-nommu.S index 573b803dc6bf..814ce1a73270 100644 --- a/arch/arm/kernel/head-nommu.S +++ b/arch/arm/kernel/head-nommu.S @@ -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 ) @@ -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 |