Add qemu 2.4.0

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

diff --git a/qemu/roms/u-boot/arch/sparc/lib/time.c b/qemu/roms/u-boot/arch/sparc/lib/time.c
new file mode 100644 (file)
index 0000000..50a09ad
--- /dev/null
+++ b/qemu/roms/u-boot/arch/sparc/lib/time.c
@@ -0,0 +1,62 @@
+/*
+ * (C) Copyright 2000, 2001
+ * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
+ *
+ * (C) Copyright 2007
+ * Daniel Hellstrom, Gaisler Research, daniel@gaisler.com.
+ *
+ * SPDX-License-Identifier:    GPL-2.0+
+ */
+
+#include <common.h>
+
+/* Implemented by SPARC CPUs */
+extern void cpu_wait_ticks(unsigned long ticks);
+extern unsigned long cpu_usec2ticks(unsigned long usec);
+extern unsigned long cpu_ticks2usec(unsigned long ticks);
+
+/* ------------------------------------------------------------------------- */
+
+void wait_ticks(unsigned long ticks)
+{
+       cpu_wait_ticks(ticks);
+}
+
+/*
+ * This function is intended for SHORT delays only.
+ */
+unsigned long usec2ticks(unsigned long usec)
+{
+       return cpu_usec2ticks(usec);
+}
+
+/* ------------------------------------------------------------------------- */
+
+/*
+ * We implement the delay by converting the delay (the number of
+ * microseconds to wait) into a number of time base ticks; then we
+ * watch the time base until it has incremented by that amount.
+ */
+void __udelay(unsigned long usec)
+{
+       ulong ticks = usec2ticks(usec);
+
+       wait_ticks(ticks);
+}
+
+/* ------------------------------------------------------------------------- */
+
+unsigned long ticks2usec(unsigned long ticks)
+{
+       return cpu_ticks2usec(ticks);
+}
+
+/* ------------------------------------------------------------------------- */
+
+int init_timebase(void)
+{
+
+       return (0);
+}
+
+/* ------------------------------------------------------------------------- */