diff options
author | wdenk <wdenk> | 2003-10-08 23:26:14 +0000 |
---|---|---|
committer | wdenk <wdenk> | 2003-10-08 23:26:14 +0000 |
commit | 4a5517094dd30bb1f271403b62e23053301668e6 (patch) | |
tree | 55bd5e64828e7645caa5506302e27715cfecdbda /lib_nios/time.c | |
parent | 54387ac931fa7cc92cd45c53798379af1f9adc44 (diff) | |
download | u-boot-imx-4a5517094dd30bb1f271403b62e23053301668e6.zip u-boot-imx-4a5517094dd30bb1f271403b62e23053301668e6.tar.gz u-boot-imx-4a5517094dd30bb1f271403b62e23053301668e6.tar.bz2 |
* Patch by Scott McNutt, 04 Oct 2003:
- add support for Altera Nios-32 CPU
- add support for Nios Cyclone Development Kit (DK-1C20)
* Patch by Steven Scholz, 29 Sep 2003:
- A second parameter for bootm overwrites the load address for
"Standalone Application" images.
- bootm sets environment variable "filesize" to the resulting
(uncompressed) data length for "Standalone Application" images
when autostart is set to "no". Now you can do something like
if bootm $fpgadata $some_free_ram ; then
fpga load 0 $some_free_ram $filesize
fi
* Patch by Denis Peter, 25 Sept 2003:
add support for the MIP405 Rev. C board
Diffstat (limited to 'lib_nios/time.c')
-rw-r--r-- | lib_nios/time.c | 37 |
1 files changed, 37 insertions, 0 deletions
diff --git a/lib_nios/time.c b/lib_nios/time.c new file mode 100644 index 0000000..765b9c1 --- /dev/null +++ b/lib_nios/time.c @@ -0,0 +1,37 @@ +/* + * (C) Copyright 2003, Psyent Corporation <www.psyent.com> + * Scott McNutt <smcnutt@psyent.com> + * + * 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 <common.h> + + +extern void dly_clks( unsigned long ticks ); + +void udelay(unsigned long usec) +{ + /* The Nios core doesn't have a timebase, so we do our + * best for now and call a low-level loop that counts + * cpu clocks. + */ + unsigned long cnt = (CONFIG_SYS_CLK_FREQ/1000000) * usec; + dly_clks (cnt); +} |