diff options
Diffstat (limited to 'payloads/libpayload/drivers/timer/mvmap2315.c')
-rw-r--r-- | payloads/libpayload/drivers/timer/mvmap2315.c | 44 |
1 files changed, 44 insertions, 0 deletions
diff --git a/payloads/libpayload/drivers/timer/mvmap2315.c b/payloads/libpayload/drivers/timer/mvmap2315.c new file mode 100644 index 0000000000..5b1f81376a --- /dev/null +++ b/payloads/libpayload/drivers/timer/mvmap2315.c @@ -0,0 +1,44 @@ +/* + * This file is part of the coreboot project. + * + * Copyright (C) 2016 Marvell Inc. + * + * 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. + * 3. The name of the author may not be used to endorse or promote products + * derived from this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR 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 AUTHOR 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 <assert.h> +#include <libpayload.h> + +static u32 *reg = (void *)CONFIG_LP_MVMAP2315_TIMER_REG; + +uint64_t timer_hz(void) +{ + return CONFIG_LP_MVMAP2315_TIMER_FREQ; +} + +uint64_t timer_raw_value(void) +{ + /* invert count to change from down to up count */ + return ~readl(reg); +} |