soc/ti/am335x: Fix timer implementation

Implements the monotonic timer using the am335x dmtimer peripheral.

Change-Id: I4736b6d3b6e26370be9e8f369fc02285ad519223
Signed-off-by: Sam Lewis <sam.vr.lewis@gmail.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/44383
Reviewed-by: Arthur Heymans <arthur@aheymans.xyz>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>

1 files changed, 0 insertions, 40 deletions

diff --git a/src/soc/ti/am335x/monotonic_timer.c b/src/soc/ti/am335x/monotonic_timer.c
deleted file mode 100644
index b57258b6c8..0000000000
--- a/src/soc/ti/am335x/monotonic_timer.c
+++ /dev/null
@@ -1,40 +0,0 @@
-/* SPDX-License-Identifier: GPL-2.0-only */
-
-#include <stdint.h>
-#include <delay.h>
-#include <timer.h>
-
-#include "dmtimer.h"
-
-static struct monotonic_counter {
-	int initialized;
-	struct mono_time time;
-	uint64_t last_value;
-} mono_counter;
-
-static const uint32_t clocks_per_usec = OSC_HZ/1000000;
-
-void timer_monotonic_get(struct mono_time *mt)
-{
-	uint64_t current_tick;
-	uint64_t usecs_elapsed;
-
-	if (!mono_counter.initialized) {
-		init_timer();
-		mono_counter.last_value = dmtimer_raw_value(0);
-		mono_counter.initialized = 1;
-	}
-
-	current_tick = dmtimer_raw_value(0);
-	usecs_elapsed = (current_tick - mono_counter.last_value) /
-							clocks_per_usec;
-
-	/* Update current time and tick values only if a full tick occurred. */
-	if (usecs_elapsed) {
-		mono_time_add_usecs(&mono_counter.time, usecs_elapsed);
-		mono_counter.last_value = current_tick;
-	}
-
-	/* Save result. */
-	*mt = mono_counter.time;
-}