From d0f855f221307dcbaeeef5a58c5ce816d0af6750 Mon Sep 17 00:00:00 2001
From: Michal Simek <michal.simek@xilinx.com>
Date: Tue, 15 May 2018 16:47:02 +0200
Subject: [PATCH] arm64: timer: Create timer_get_bootus for bootstage support
Implement timer_get_boot_us() based on available functions to support
bootstage command.
Signed-off-by: Michal Simek <michal.simek@xilinx.com>
---
arch/arm/cpu/armv8/generic_timer.c | 7 +++++++
1 file changed, 7 insertions(+)
diff --git a/arch/arm/cpu/armv8/generic_timer.c b/arch/arm/cpu/armv8/generic_timer.c
index 303ba3c00e..bf07a706a0 100644
--- a/arch/arm/cpu/armv8/generic_timer.c
+++ b/arch/arm/cpu/armv8/generic_timer.c
@@ -61,3 +61,10 @@ unsigned long usec2ticks(unsigned long usec)
return ticks;
}
+
+ulong timer_get_boot_us(void)
+{
+ u64 val = get_ticks() * 1000000;
+
+ return val / get_tbclk();
+}
--
2.39.5