diff options
| author |   Yang Zhang <yang.z.zhang@intel.com> | 2015-08-28 09:58:54 +0800 |
|---|---|---|
| committer | Yang Zhang <yang.z.zhang@intel.com> | 2015-09-01 12:44:00 +0800 |
| commit | e44e3482bdb4d0ebde2d8b41830ac2cdb07948fb (patch) | |
| tree | 66b09f592c55df2878107a468a91d21506104d3f /qemu/roms/u-boot/arch/nios2/lib/time.c | |
| parent | 9ca8dbcc65cfc63d6f5ef3312a33184e1d726e00 (diff) | |
Add qemu 2.4.0
Change-Id: Ic99cbad4b61f8b127b7dc74d04576c0bcbaaf4f5
Signed-off-by: Yang Zhang <yang.z.zhang@intel.com>
Diffstat (limited to 'qemu/roms/u-boot/arch/nios2/lib/time.c')
| -rw-r--r-- | qemu/roms/u-boot/arch/nios2/lib/time.c | 22 |
1 files changed, 22 insertions, 0 deletions
diff --git a/qemu/roms/u-boot/arch/nios2/lib/time.c b/qemu/roms/u-boot/arch/nios2/lib/time.c new file mode 100644 index 000000000..d39604579 --- /dev/null +++ b/qemu/roms/u-boot/arch/nios2/lib/time.c @@ -0,0 +1,22 @@ +/* + * (C) Copyright 2003, Psyent Corporation <www.psyent.com> + * Scott McNutt <smcnutt@psyent.com> + * + * SPDX-License-Identifier: GPL-2.0+ + */ + +#include <common.h> +#include <watchdog.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); +} |