AcoSail/kernel_optimize_test
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kernel_optimize_test/arch/powerpc/kernel/cpu_setup_44x.S

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[POWERPC] 4xx: Introduce cpu_setup functionality to 44x platform This adds cpu_setup functionality for ppc44x platform. Low level cpu-spefic initialization routines should be placed in cpu_setup_44x.S and a callback should be added to cputable. The cpu_setup is invoked by identify_cpu() function at early init. Signed-off-by: Valentine Barshak <vbarshak@ru.mvista.com> Signed-off-by: Josh Boyer <jwboyer@linux.vnet.ibm.com>
2007-09-21 22:44:38 +08:00
/*
* This file contains low level CPU setup functions.
* Valentine Barshak <vbarshak@ru.mvista.com>
* MontaVista Software, Inc (c) 2007
*
* Based on cpu_setup_6xx code by
* Benjamin Herrenschmidt <benh@kernel.crashing.org>
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version
* 2 of the License, or (at your option) any later version.
*
*/
#include <asm/processor.h>
#include <asm/cputable.h>
#include <asm/ppc_asm.h>
[POWERPC] 4xx: Move 440EP(x) FPU setup from head_44x to cpu_setup_4xx The PowerPC 440EP(x) FPU init is currently done in head_44x under ifdefs. Since we should support more then one board in the same kernel, we move FPU initialization code from head_44x to cpu_setup_44x and add cpu_setup callbacks for 440EP(x). Signed-off-by: Valentine Barshak <vbarshak@ru.mvista.com> Signed-off-by: Josh Boyer <jwboyer@linux.vnet.ibm.com>
2007-09-21 22:46:57 +08:00
_GLOBAL(__setup_cpu_440ep)
b __init_fpu_44x
_GLOBAL(__setup_cpu_440epx)
b __init_fpu_44x
/* enable APU between CPU and FPU */
_GLOBAL(__init_fpu_44x)
mfspr r3,SPRN_CCR0
/* Clear DAPUIB flag in CCR0 */
rlwinm r3,r3,0,12,10
mtspr SPRN_CCR0,r3
isync
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