1 files changed, 59 insertions, 0 deletions
diff --git a/plat/gxb/timer.c b/plat/gxb/timer.c
new file mode 100644
index 0000000..e8f076d
--- /dev/null
+++ b/plat/gxb/timer.c
@@ -0,0 +1,59 @@
+
+/*
+ * arch/arm/cpu/armv8/common/firmware/plat/gxb/timer.c
+ *
+ * Copyright (C) 2015 Amlogic, Inc. All rights reserved.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
+ * more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write to the Free Software Foundation, Inc.,
+ * 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
+*/
+
+#include <io.h>
+#include <stdio.h>
+#include <asm/arch/romboot.h>
+#include <timer.h>
+
+#define P_EE_TIMER_E		P_ISA_TIMERE
+
+uint32_t time_start = 0;
+uint32_t time_end = 0;
+
+uint32_t get_time(void)
+{
+	return readl(P_EE_TIMER_E);
+}
+
+void _udelay(unsigned int us)
+{
+#ifndef CONFIG_PXP_EMULATOR
+	uint32_t t0 = get_time();
+
+	while (get_time() - t0 <= us)
+		;
+#endif
+}
+
+void timer_start(void)
+{
+	time_start = get_time();
+}
+
+void timer_end(const char * name)
+{
+	time_end = get_time();
+	serial_puts(name);
+	serial_puts(" Time: ");
+	serial_put_dec(time_end - time_start);
+	serial_puts(" us\n");
+}
+\ No newline at end of file