u-boot/cpu/mpc824x/drivers/i2o/i2o2.S
wdenk 8bde7f776c * Code cleanup:
- remove trailing white space, trailing empty lines, C++ comments, etc.
  - split cmd_boot.c (separate cmd_bdinfo.c and cmd_load.c)

* Patches by Kenneth Johansson, 25 Jun 2003:
  - major rework of command structure
    (work done mostly by Michal Cendrowski and Joakim Kristiansen)
2003-06-27 21:31:46 +00:00

47 lines
1 KiB
ArmAsm

/**************************************
*
* copyright @ Motorola, 1999
*
**************************************/
/**********************************************************
* 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