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libpayload: ipq8064: Add rudimentary timer driver

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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>
This commit is contained in:
Vadim Bendebury
2014-05-21 16:28:57 -07:00
committed by Marc Jones
parent 5106b9dbb7
commit 8ec74a39fa
4 changed files with 62 additions and 1 deletions
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18
payloads/libpayload/Config.in
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@@ -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