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.
65 lines
1.7 KiB
65 lines
1.7 KiB
/*
|
|
* (C) Copyright 2000, 2001
|
|
* Erik Theisen, Wave 7 Optics, etheisen@mindspring.com.
|
|
* base on code by
|
|
* Wolfgang Denk, DENX Software Engineering, wd@denx.de.
|
|
*
|
|
* See file CREDITS for list of people who contributed to this
|
|
* project.
|
|
*
|
|
* This program is free software; you can redistribute it and/or
|
|
* modify it under the terms of the GNU General Public License as
|
|
* published by the Free Software Foundation; either version 2 of
|
|
* the License, or (at your option) any later version.
|
|
*
|
|
* This program is distributed in the hope that it will be useful,
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
* GNU General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU General Public License
|
|
* along with this program; if not, write to the Free Software
|
|
* Foundation, Inc., 59 Temple Place, Suite 330, Boston,
|
|
* MA 02111-1307 USA
|
|
*/
|
|
|
|
#include <ppc_asm.tmpl>
|
|
#include <ppc_defs.h>
|
|
#include <config.h>
|
|
#include <watchdog.h>
|
|
|
|
/*
|
|
* unsigned long long get_ticks(void);
|
|
*
|
|
* read timebase as "long long"
|
|
*/
|
|
.globl get_ticks
|
|
get_ticks:
|
|
1: mftbu r3
|
|
mftb r4
|
|
mftbu r5
|
|
cmp 0,r3,r5
|
|
bne 1b
|
|
blr
|
|
|
|
/*
|
|
* Delay for a number of ticks
|
|
*/
|
|
.globl wait_ticks
|
|
wait_ticks:
|
|
mflr r8 /* save link register */
|
|
mr r7, r3 /* save tick count */
|
|
bl get_ticks /* Get start time */
|
|
|
|
/* Calculate end time */
|
|
addc r7, r4, r7 /* Compute end time lower */
|
|
addze r6, r3 /* and end time upper */
|
|
|
|
WATCHDOG_RESET /* Trigger watchdog, if needed */
|
|
1: bl get_ticks /* Get current time */
|
|
subfc r4, r4, r7 /* Subtract current time from end time */
|
|
subfe. r3, r3, r6
|
|
bge 1b /* Loop until time expired */
|
|
|
|
mtlr r8 /* restore link register */
|
|
blr
|
|
|