soc/mediatek: Make timer_prepare() a common function

timer_prepare() is the same for MT8195 and MT8186, so move it to
common folder.

TEST=build pass
BUG=b:233720142

Signed-off-by: Bo-Chen Chen <rex-bc.chen@mediatek.com>
Change-Id: I91a6f4ecc665a058cb7a0ba96c15b27d6dc97d13
Reviewed-on: https://review.coreboot.org/c/coreboot/+/65602
Reviewed-by: Yu-Ping Wu <yupingso@google.com>
Reviewed-by: Yidi Lin <yidilin@chromium.org>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>

1 files changed, 11 insertions, 0 deletions

diff --git a/src/soc/mediatek/common/timer_prepare.c b/src/soc/mediatek/common/timer_prepare.c
new file mode 100644
index 0000000000..3fb4be7f2d
--- /dev/null
+++ b/src/soc/mediatek/common/timer_prepare.c
@@ -0,0 +1,11 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+
+#include <device/mmio.h>
+#include <soc/addressmap.h>
+#include <soc/timer.h>
+
+void timer_prepare(void)
+{
+	clrbits32((void *)SYSTIMER_BASE, COMP_FEATURE_MASK);
+	setbits32((void *)SYSTIMER_BASE, COMP_25_MASK);
+}