From 8d978a88e6ccfa809879667de4098068be8efb5c Mon Sep 17 00:00:00 2001 From: Julius Werner Date: Mon, 8 Dec 2014 13:16:03 -0800 Subject: rk3288/exynos5250/exynos5420: Consolidate timer files Some boards spread their timer implementation out in multiple files with one function each for no discernable reason. Let's clean that up to make things a little simpler to find. BRANCH=None BUG=None TEST=Booted Pinky, compiled Daisy and Pit. Change-Id: I8b543d1a0d9af37bde5433b0c9271d687b2404b2 Signed-off-by: Patrick Georgi Original-Commit-Id: 887765e1bd88d7aa49ad9a5e98b8831c10da6c10 Original-Change-Id: I43d29cd1b4a1d89cfd40f6cba5ca99ada3b00f82 Original-Signed-off-by: Julius Werner Original-Reviewed-on: https://chromium-review.googlesource.com/234061 Original-Reviewed-by: Aaron Durbin Reviewed-on: http://review.coreboot.org/9601 Tested-by: build bot (Jenkins) Reviewed-by: Paul Menzel Reviewed-by: Stefan Reinauer --- src/soc/samsung/exynos5420/timer.c | 48 ++++++++++++++++++++++++++++++++++++++ 1 file changed, 48 insertions(+) create mode 100644 src/soc/samsung/exynos5420/timer.c (limited to 'src/soc/samsung/exynos5420/timer.c') diff --git a/src/soc/samsung/exynos5420/timer.c b/src/soc/samsung/exynos5420/timer.c new file mode 100644 index 0000000000..0947d19d63 --- /dev/null +++ b/src/soc/samsung/exynos5420/timer.c @@ -0,0 +1,48 @@ +/* + * This file is part of the coreboot project. + * + * Copyright 2013 Google Inc. + * + * 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. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA + */ + +#include +#include +#include +#include + +static const uint32_t clocks_per_usec = MCT_HZ/1000000; + +uint64_t mct_raw_value(void) +{ + uint64_t upper = readl(&exynos_mct->g_cnt_u); + uint64_t lower = readl(&exynos_mct->g_cnt_l); + + return (upper << 32) | lower; +} + +void mct_start(void) +{ + writel(readl(&exynos_mct->g_tcon) | (0x1 << 8), + &exynos_mct->g_tcon); +} + +void timer_monotonic_get(struct mono_time *mt) +{ + /* We don't have to call mct_start() here + * because it was already called in the bootblock + */ + + mono_time_set_usecs(mt, mct_raw_value() / clocks_per_usec); +} -- cgit v1.2.3