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.
55 lines
1.7 KiB
55 lines
1.7 KiB
/*
|
|
* U-boot - delay.h Routines for introducing delays
|
|
*
|
|
* Copyright (c) 2005-2007 Analog Devices Inc.
|
|
*
|
|
* 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., 51 Franklin St, Fifth Floor, Boston,
|
|
* MA 02110-1301 USA
|
|
*/
|
|
|
|
#ifndef _BLACKFIN_DELAY_H
|
|
#define _BLACKFIN_DELAY_H
|
|
|
|
/*
|
|
* Changes made by akbar.hussain@Lineo.com, for BLACKFIN
|
|
* Copyright (C) 1994 Hamish Macdonald
|
|
*
|
|
* Delay routines, using a pre-computed "loops_per_second" value.
|
|
*/
|
|
|
|
extern __inline__ void __delay(unsigned long loops)
|
|
{
|
|
__asm__ __volatile__("1:\t%0 += -1;\n\t"
|
|
"cc = %0 == 0;\n\t"
|
|
"if ! cc jump 1b;\n":"=d"(loops)
|
|
:"0"(loops));
|
|
}
|
|
|
|
/*
|
|
* Use only for very small delays ( < 1 msec). Should probably use a
|
|
* lookup table, really, as the multiplications take much too long with
|
|
* short delays. This is a "reasonable" implementation, though (and the
|
|
* first constant multiplications gets optimized away if the delay is
|
|
* a constant)
|
|
*/
|
|
extern __inline__ void __udelay(unsigned long usecs)
|
|
{
|
|
__delay(usecs);
|
|
}
|
|
|
|
#endif
|
|
|