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author | T Michael Turney <mturney@codeaurora.org> | 2018-04-24 10:15:46 -0700 |
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committer | Patrick Georgi <pgeorgi@google.com> | 2018-04-30 06:25:58 +0000 |
commit | 3775f1c0e177b3667753bbf0087b7975f3ec712e (patch) | |
tree | c95237636d1f3c9a576e41538ff3354262e69a91 /src/arch/arm64/arch_timer.c | |
parent | 6e0f0f7f9c91f41eb40f4ef6979937caee168bdf (diff) | |
download | coreboot-3775f1c0e177b3667753bbf0087b7975f3ec712e.tar.xz |
arm64: Add ARCH Timer
SoC sdm845 uses ARCH Timer
Change-Id: I45e2d4d2c16a2cded3df20d393d2b8820050ac80
Signed-off-by: T Michael Turney <mturney@codeaurora.org>
Reviewed-on: https://review.coreboot.org/25612
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Julius Werner <jwerner@chromium.org>
Diffstat (limited to 'src/arch/arm64/arch_timer.c')
-rw-r--r-- | src/arch/arm64/arch_timer.c | 25 |
1 files changed, 25 insertions, 0 deletions
diff --git a/src/arch/arm64/arch_timer.c b/src/arch/arm64/arch_timer.c new file mode 100644 index 0000000000..e7f3732b0e --- /dev/null +++ b/src/arch/arm64/arch_timer.c @@ -0,0 +1,25 @@ +/* + * This file is part of the coreboot project. + * + * Copyright (C) 2018, The Linux Foundation. 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 version 2 and + * only version 2 as published by the Free Software Foundation. + * + * 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. + */ + +#include <timer.h> +#include <arch/lib_helpers.h> + +void timer_monotonic_get(struct mono_time *mt) +{ + uint64_t tvalue = raw_read_cntpct_el0(); + uint32_t tfreq = raw_read_cntfrq_el0(); + long usecs = (tvalue * 1000000) / tfreq; + mono_time_set_usecs(mt, usecs); +} |