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/**************************************
*
* copyright @ Motorola, 1999
*
*
* This file contains two commonly used
* lower level utility routines.
*
* The utility routines are also in other
* Kahlua device driver libraries. The
* need to be linked in only once.
**************************************/
#include <ppc_asm.tmpl>
#include <ppc_defs.h>
/**********************************************************
* function: load_runtime_reg
*
* input: r3 - value of eumbbar
* r4 - register offset in embedded utility space
*
* output: r3 - register content
**********************************************************/
.text
.align 2
.global load_runtime_reg
load_runtime_reg:
xor r5,r5,r5
or r5,r5,r3 /* save eumbbar */
lwbrx r3,r4,r5
sync
bclr 20, 0
/****************************************************************
* function: store_runtime_reg
*
* input: r3 - value of eumbbar
* r4 - register offset in embedded utility space
* r5 - new value to be stored
*
****************************************************************/
.text
.align 2
.global store_runtime_reg
store_runtime_reg:
xor r0,r0,r0
stwbrx r5, r4, r3
sync
bclr 20,0
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