From c83239eabc3b09273294a013c4dcb84f09ab0241 Mon Sep 17 00:00:00 2001 From: Nico Huber Date: Wed, 5 Oct 2016 17:46:49 +0200 Subject: Hook up libhwbase in ramstage It's hidden behind a configuration option `CONFIG_RAMSTAGE_LIBHWBASE`. This also adds some glue code to use the coreboot console for debug output and our monotonic timer framework as timer backend. v2: Also update 3rdparty/libhwbase to the latest master commit. Change-Id: I8e8d50271b46aac1141f95ab55ad323ac0889a8d Signed-off-by: Nico Huber Reviewed-on: https://review.coreboot.org/16951 Tested-by: build bot (Jenkins) Reviewed-by: Paul Menzel Reviewed-by: Ronald G. Minnich --- src/lib/hw-time-timer.adb | 48 +++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 48 insertions(+) create mode 100644 src/lib/hw-time-timer.adb (limited to 'src/lib/hw-time-timer.adb') diff --git a/src/lib/hw-time-timer.adb b/src/lib/hw-time-timer.adb new file mode 100644 index 0000000000..643cc98610 --- /dev/null +++ b/src/lib/hw-time-timer.adb @@ -0,0 +1,48 @@ +-- +-- This file is part of the coreboot project. +-- +-- Copyright (C) 2016 secunet Security Networks AG +-- +-- 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; version 2 of the License. +-- +-- 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. +-- + +with Interfaces.C; + +package body HW.Time.Timer + with Refined_State => (Timer_State => null, + Abstract_Time => null) +is + + procedure Timer_Monotonic_Get (MT : out Interfaces.C.long); + pragma Import (C, Timer_Monotonic_Get, "timer_monotonic_get"); + + function Raw_Value_Min return T + with + SPARK_Mode => Off + is + Microseconds : Interfaces.C.long; + begin + Timer_Monotonic_Get (Microseconds); + return T (Microseconds); + end Raw_Value_Min; + + function Raw_Value_Max return T + is + begin + return Raw_Value_Min + 1; + end Raw_Value_Max; + + function Hz return T + is + begin + return 1_000_000; + end Hz; + +end HW.Time.Timer; -- cgit v1.2.3