53 lines
1.0 KiB
ArmAsm
53 lines
1.0 KiB
ArmAsm
/**************************************
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*
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* copyright @ Motorola, 1999
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*
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**************************************/
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#include <config.h>
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#ifdef CONFIG_HARD_I2C
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#include <ppc_asm.tmpl>
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#include <asm/mmu.h>
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/**********************************************************
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* function: load_runtime_reg
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*
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* input: r3 - value of eumbbar
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* r4 - register offset in embedded utility space
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*
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* output: r3 - register content
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**********************************************************/
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.text
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.align 2
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.global load_runtime_reg
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load_runtime_reg:
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/* xor r5,r5,r5
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* or r5,r5,r3
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*
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* lwbrx r3,r4,r5
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*/
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lwbrx r3,r4,r3
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sync
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bclr 20, 0
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/****************************************************************
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* function: store_runtime_reg
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*
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* input: r3 - value of eumbbar
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* r4 - register offset in embedded utility space
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* r5 - new value to be stored
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*
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****************************************************************/
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.text
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.align 2
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.global store_runtime_reg
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store_runtime_reg:
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stwbrx r5, r4, r3
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sync
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bclr 20,0
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#endif /* CONFIG_HARD_I2C */
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