From 8ec74a39fa6b5a4a216a837f1ff8f2e8c8b7436b Mon Sep 17 00:00:00 2001 From: Vadim Bendebury Date: Wed, 21 May 2014 16:28:57 -0700 Subject: libpayload: ipq8064: Add rudimentary timer driver This is still using the 32kHz timer coreboot uses. A finer granularity timer implementation for 806x is in the works. BUG=chrome-os-partner:27784,chrome-os-partner:28880 TEST=none yet. Original-Change-Id: Iae206749000d45040090df48199c8d86d76bbae5 Original-Signed-off-by: Vadim Bendebury Original-Reviewed-on: https://chromium-review.googlesource.com/198021 Original-Reviewed-by: Furquan Shaikh (cherry picked from commit 8f49f752ab8f84b7c5dc189238732360e8d2aae2) Signed-off-by: Marc Jones Change-Id: Ia150c974e5b66939de0b007cf7c1308c187f3289 Reviewed-on: http://review.coreboot.org/8002 Tested-by: build bot (Jenkins) Reviewed-by: Philipp Deppenwiese Reviewed-by: Patrick Georgi Reviewed-by: Paul Menzel --- payloads/libpayload/drivers/timer/ipq806x.c | 41 +++++++++++++++++++++++++++++ 1 file changed, 41 insertions(+) create mode 100644 payloads/libpayload/drivers/timer/ipq806x.c (limited to 'payloads/libpayload/drivers/timer') diff --git a/payloads/libpayload/drivers/timer/ipq806x.c b/payloads/libpayload/drivers/timer/ipq806x.c new file mode 100644 index 0000000000..4edbf8eda0 --- /dev/null +++ b/payloads/libpayload/drivers/timer/ipq806x.c @@ -0,0 +1,41 @@ +/* + * This file is part of the depthcharge project. + * + * Copyright (C) 2014 The Linux Foundation. All rights reserved. + * + * 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 + +uint64_t timer_hz(void) +{ + return CONFIG_LP_IPQ806X_TIMER_FREQ; +} + +uint64_t timer_raw_value(void) +{ + return readl((void *)CONFIG_LP_IPQ806X_TIMER_REG); +} + -- cgit v1.2.3