upstream u-boot with additional patches for our devices/boards:
https://lists.denx.de/pipermail/u-boot/2017-March/282789.html (AXP crashes) ;
Gbit ethernet patch for some LIME2 revisions ;
with SPI flash support
You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
59 lines
1.3 KiB
59 lines
1.3 KiB
23 years ago
|
/**************************************
|
||
|
|
*
|
||
|
|
* 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
|
||
|
|
|