Add qemu 2.4.0

[kvmfornfv.git] / qemu / roms / u-boot / arch / nios2 / lib / time.c

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 (file)
index 0000000..d396045
--- /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);
+}