From 1480c3f5e8a7c376cde4eff5699d76672d3d901f Mon Sep 17 00:00:00 2001 From: Kinsey Moore Date: Thu, 27 Aug 2020 22:07:52 -0500 Subject: bsps: Break out AArch32 portions of GPT driver This breaks AArch32-specific portions of the ARM GPT driver into their own file so that the generic code can be moved for reuse by other architectures. --- bsps/arm/shared/clock/arm-generic-timer-aarch32.c | 74 +++++++++++++++++++++++ 1 file changed, 74 insertions(+) create mode 100644 bsps/arm/shared/clock/arm-generic-timer-aarch32.c (limited to 'bsps/arm/shared/clock/arm-generic-timer-aarch32.c') diff --git a/bsps/arm/shared/clock/arm-generic-timer-aarch32.c b/bsps/arm/shared/clock/arm-generic-timer-aarch32.c new file mode 100644 index 0000000000..a187bbba6f --- /dev/null +++ b/bsps/arm/shared/clock/arm-generic-timer-aarch32.c @@ -0,0 +1,74 @@ +/* SPDX-License-Identifier: BSD-2-Clause */ + +/** + * @file + * + * @ingroup RTEMSBSPsARMShared + * + * @brief ARM-specific clock driver functions. + */ + +/* + * Copyright (C) 2020 On-Line Applications Research Corporation (OAR) + * Written by Kinsey Moore + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" + * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE + * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR + * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF + * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS + * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN + * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) + * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE + * POSSIBILITY OF SUCH DAMAGE. + */ + +#include +#include + +uint64_t arm_gt_clock_get_compare_value(void) +{ +#ifdef ARM_GENERIC_TIMER_USE_VIRTUAL + return arm_cp15_get_counter_pl1_virtual_compare_value(); +#else + return arm_cp15_get_counter_pl1_physical_compare_value(); +#endif +} + +void arm_gt_clock_set_compare_value(uint64_t cval) +{ +#ifdef ARM_GENERIC_TIMER_USE_VIRTUAL + arm_cp15_set_counter_pl1_virtual_compare_value(cval); +#else + arm_cp15_set_counter_pl1_physical_compare_value(cval); +#endif +} + +uint64_t arm_gt_clock_get_count(void) +{ +#ifdef ARM_GENERIC_TIMER_USE_VIRTUAL + return arm_cp15_get_counter_virtual_count(); +#else + return arm_cp15_get_counter_physical_count(); +#endif +} + +void arm_gt_clock_set_control(uint32_t ctl) +{ +#ifdef ARM_GENERIC_TIMER_USE_VIRTUAL + arm_cp15_set_counter_pl1_virtual_timer_control(ctl); +#else + arm_cp15_set_counter_pl1_physical_timer_control(ctl); +#endif +} -- cgit v1.2.3