projects / people / ms / u-boot.git / blame
| Commit | Line | Data |
|---|---|---|
| 327f7a02 WD |
1 | /************************************** |
| 2 | * | |
| 3 | * copyright @ Motorola, 1999 | |
| 4 | * | |
| 5 | **************************************/ | |
| 6 | ||
| 7 | /********************************************************** | |
| 8 | * function: load_runtime_reg | |
| 9 | * | |
| 10 | * input: r3 - value of eumbbar | |
| 11 | * r4 - register offset in embedded utility space | |
| 12 | * | |
| 13 | * output: r3 - register content | |
| 14 | **********************************************************/ | |
| 15 | .text | |
| 16 | .align 2 | |
| 17 | .global load_runtime_reg | |
| 18 | ||
| 19 | load_runtime_reg: | |
| 20 | ||
| 21 | xor r5,r5,r5 | |
| 8bde7f77 | 22 | or r5,r5,r3 /* save eumbbar */ |
| 327f7a02 WD |
23 | |
| 24 | lwbrx r3,r4,r5 | |
| 25 | sync | |
| 26 | ||
| 8bde7f77 | 27 | bclr 20, 0 |
| 327f7a02 WD |
28 | |
| 29 | /**************************************************************** | |
| 30 | * function: store_runtime_reg | |
| 31 | * | |
| 32 | * input: r3 - value of eumbbar | |
| 33 | * r4 - register offset in embedded utility space | |
| 34 | * r5 - new value to be stored | |
| 35 | * | |
| 36 | ****************************************************************/ | |
| 8bde7f77 WD |
37 | .text |
| 38 | .align 2 | |
| 39 | .global store_runtime_reg | |
| 327f7a02 WD |
40 | store_runtime_reg: |
| 41 | ||
| 42 | xor r0,r0,r0 | |
| 43 | ||
| 44 | stwbrx r5, r4, r3 | |
| 45 | sync | |
| 46 | ||
| 47 | bclr 20,0 |