From: Michal Simek <michal.simek@xilinx.com>
Date: Tue, 15 May 2018 14:47:02 +0000 (+0200)
Subject: arm64: timer: Create timer_get_bootus for bootstage support
X-Git-Tag: v2018.07-rc1~99
X-Git-Url: https://git.librecmc.org/?a=commitdiff_plain;h=d0f855f221307dcbaeeef5a58c5ce816d0af6750;p=oweals%2Fu-boot.git

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>
---

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();
+}