Merge tag 'clk-2022.01-rc3' of https://source.denx.de/u-boot/custodians/u-boot-clk

[platform/kernel/u-boot.git] / lib / time.c

diff --git a/lib/time.c b/lib/time.c
index f5751ab..38a9758 100644 (file)
--- a/lib/time.c
+++ b/lib/time.c
@@ -5,12 +5,18 @@
  */
 
 #include <common.h>
+#include <bootstage.h>
 #include <dm.h>
 #include <errno.h>
+#include <init.h>
+#include <spl.h>
+#include <time.h>
 #include <timer.h>
 #include <watchdog.h>
 #include <div64.h>
+#include <asm/global_data.h>
 #include <asm/io.h>
+#include <linux/delay.h>
 
 #ifndef CONFIG_WD_PERIOD
 # define CONFIG_WD_PERIOD      (10 * 1000 * 1000)      /* 10 seconds default */
@@ -87,13 +93,18 @@ uint64_t notrace get_ticks(void)
 
                ret = dm_timer_init();
                if (ret)
-                       return ret;
+                       panic("Could not initialize timer (err %d)\n", ret);
 #endif
        }
 
        ret = timer_get_count(gd->timer, &count);
-       if (ret)
-               return ret;
+       if (ret) {
+               if (spl_phase() > PHASE_TPL)
+                       panic("Could not read count from timer (err %d)\n",
+                             ret);
+               else
+                       panic("no timer (err %d)\n", ret);
+       }
 
        return count;
 }
@@ -134,6 +145,25 @@ ulong __weak get_timer(ulong base)
        return tick_to_time(get_ticks()) - base;
 }
 
+static uint64_t notrace tick_to_time_us(uint64_t tick)
+{
+       ulong div = get_tbclk() / 1000;
+
+       tick *= CONFIG_SYS_HZ;
+       do_div(tick, div);
+       return tick;
+}
+
+uint64_t __weak get_timer_us(uint64_t base)
+{
+       return tick_to_time_us(get_ticks()) - base;
+}
+
+unsigned long __weak get_timer_us_long(unsigned long base)
+{
+       return timer_get_us() - base;
+}
+
 unsigned long __weak notrace timer_get_us(void)
 {
        return tick_to_time(get_ticks() * 1000);
@@ -166,7 +196,7 @@ void udelay(unsigned long usec)
        do {
                WATCHDOG_RESET();
                kv = usec > CONFIG_WD_PERIOD ? CONFIG_WD_PERIOD : usec;
-               __udelay (kv);
+               __udelay(kv);
                usec -= kv;
        } while(usec);
 }