serial: Add Actions Semi OWL UART support

[u-boot] / lib / time.c

diff --git a/lib/time.c b/lib/time.c
index f37150fddc150db21c5b147bfe8b6fffccc08498..3bf678a23278db79e523e5fe1cb9db933d19ecd3 100644 (file)
--- a/lib/time.c
+++ b/lib/time.c
@@ -1,8 +1,7 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * (C) Copyright 2000-2009
  * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
- *
- * SPDX-License-Identifier:    GPL-2.0+
  */
 
 #include <common.h>
@@ -36,6 +35,23 @@ unsigned long notrace timer_read_counter(void)
        return readl(CONFIG_SYS_TIMER_COUNTER);
 #endif
 }
+
+ulong timer_get_boot_us(void)
+{
+       ulong count = timer_read_counter();
+
+#if CONFIG_SYS_TIMER_RATE == 1000000
+       return count;
+#elif CONFIG_SYS_TIMER_RATE > 1000000
+       return lldiv(count, CONFIG_SYS_TIMER_RATE / 1000000);
+#elif defined(CONFIG_SYS_TIMER_RATE)
+       return (unsigned long long)count * 1000000 / CONFIG_SYS_TIMER_RATE;
+#else
+       /* Assume the counter is in microseconds */
+       return count;
+#endif
+}
+
 #else
 extern unsigned long __weak timer_read_counter(void);
 #endif
@@ -154,9 +170,3 @@ void udelay(unsigned long usec)
                usec -= kv;
        } while(usec);
 }
-
-void mdelay(unsigned long msec)
-{
-       while (msec--)
-               udelay(1000);
-}