diff options
author | Vadim Bendebury <vbendeb@chromium.org> | 2014-05-21 16:28:57 -0700 |
---|---|---|
committer | Marc Jones <marc.jones@se-eng.com> | 2015-01-04 00:07:38 +0100 |
commit | 8ec74a39fa6b5a4a216a837f1ff8f2e8c8b7436b (patch) | |
tree | d3d77fa4a4d65d537a3ede9d43e2d15e7b223fa0 /payloads | |
parent | 5106b9dbb7b5cf0f61e763706c868054a1408e31 (diff) |
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 <vbendeb@chromium.org>
Original-Reviewed-on: https://chromium-review.googlesource.com/198021
Original-Reviewed-by: Furquan Shaikh <furquan@chromium.org>
(cherry picked from commit 8f49f752ab8f84b7c5dc189238732360e8d2aae2)
Signed-off-by: Marc Jones <marc.jones@se-eng.com>
Change-Id: Ia150c974e5b66939de0b007cf7c1308c187f3289
Reviewed-on: http://review.coreboot.org/8002
Tested-by: build bot (Jenkins)
Reviewed-by: Philipp Deppenwiese <zaolin@das-labor.org>
Reviewed-by: Patrick Georgi <pgeorgi@google.com>
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
Diffstat (limited to 'payloads')
-rw-r--r-- | payloads/libpayload/Config.in | 18 | ||||
-rw-r--r-- | payloads/libpayload/configs/defconfig-arm | 3 | ||||
-rw-r--r-- | payloads/libpayload/drivers/Makefile.inc | 1 | ||||
-rw-r--r-- | payloads/libpayload/drivers/timer/ipq806x.c | 41 |
4 files changed, 62 insertions, 1 deletions
diff --git a/payloads/libpayload/Config.in b/payloads/libpayload/Config.in index bef0e05b01..3c5c342098 100644 --- a/payloads/libpayload/Config.in +++ b/payloads/libpayload/Config.in @@ -354,6 +354,9 @@ config TIMER_MCT config TIMER_TEGRA_1US bool "Tegra 1us" +config TIMER_IPQ806X + bool "Timer for ipq806x platforms" + endchoice config TIMER_MCT_HZ @@ -371,6 +374,21 @@ config TIMER_TEGRA_1US_ADDRESS depends on TIMER_TEGRA_1US default 0x60005010 +config IPQ806X_TIMER_FREQ + int "Hardware timer frequency" + default 32000 + depends on TIMER_IPQ806X + help + IPQ hardware presently provides a single timer running at 32KHz, a + finer granulariry timer is available but is not yet enabled. + +config IPQ806X_TIMER_REG + hex "Timer register address" + default 0x0200A008 + depends on TIMER_IPQ806X + help + Address of the register to read a free running timer value. + config USB bool "USB Support" default n diff --git a/payloads/libpayload/configs/defconfig-arm b/payloads/libpayload/configs/defconfig-arm index fe47d0c60d..83731bb6b9 100644 --- a/payloads/libpayload/configs/defconfig-arm +++ b/payloads/libpayload/configs/defconfig-arm @@ -1,7 +1,7 @@ # # Automatically generated make config: don't edit # libpayload version: 0.2.0 -# Tue Dec 23 15:19:30 2014 +# Wed Dec 31 11:11:44 2014 # # @@ -55,6 +55,7 @@ CONFIG_LP_STORAGE_ATAPI=y CONFIG_LP_TIMER_NONE=y # CONFIG_LP_TIMER_MCT is not set # CONFIG_LP_TIMER_TEGRA_1US is not set +# CONFIG_LP_TIMER_IPQ806X is not set CONFIG_LP_USB=y CONFIG_LP_USB_OHCI=y CONFIG_LP_USB_EHCI=y diff --git a/payloads/libpayload/drivers/Makefile.inc b/payloads/libpayload/drivers/Makefile.inc index 7212389c8f..d46bb11541 100644 --- a/payloads/libpayload/drivers/Makefile.inc +++ b/payloads/libpayload/drivers/Makefile.inc @@ -48,6 +48,7 @@ libc-$(CONFIG_LP_NVRAM) += options.c libc-$(CONFIG_LP_TIMER_MCT) += timer/mct.c libc-$(CONFIG_LP_TIMER_RDTSC) += timer/rdtsc.c libc-$(CONFIG_LP_TIMER_TEGRA_1US) += timer/tegra_1us.c +libc-$(CONFIG_LP_TIMER_IPQ806X) += timer/ipq806x.c # Video console drivers libc-$(CONFIG_LP_VIDEO_CONSOLE) += video/video.c 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 <libpayload.h> + +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); +} + |