| 6ce38364 | 13-Oct-2018 |
Bin Meng <bmeng.cn@gmail.com> |
x86: tsc: Introduce config option for early timer frequency
So far the TSC timer driver supports trying hardware calibration first
and using device tree as last resort for its running frequency as t
x86: tsc: Introduce config option for early timer frequency
So far the TSC timer driver supports trying hardware calibration first
and using device tree as last resort for its running frequency as the
normal timer.
However when it is used as the early timer, it only supports hardware
calibration and if it fails, the driver just panics. This introduces
a new config option to specify the early timer frequency in MHz and
it should be equal to the value described in the device tree.
Without this patch, the travis-ci testing on QEMU x86_64 target fails
each time after it finishes the 'bootefi selftest' as the test.py see
an error was emitted on the console like this:
TSC frequency is ZERO
resetting ...
### ERROR ### Please RESET the board ###
It's strange that this error is consistently seen on the travis-ci
machine, but only occasionally seen on my local machine (maybe 1 out
of 10). Since QEMU x86_64 target enables BOOTSTAGE support which uses
early timer, with this fix it should work without any failure.
Signed-off-by: Bin Meng <bmeng.cn@gmail.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
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|
| 84b4221c | 16-Aug-2018 |
Lokesh Vutla <lokeshvutla@ti.com> |
dm: omap-timer: Update clock rate only if not populated
timer_pre_probe() tries to populate the clock rate from DT. omap
timer driver tries to overwrite this value irrespective of the value
populate
dm: omap-timer: Update clock rate only if not populated
timer_pre_probe() tries to populate the clock rate from DT. omap
timer driver tries to overwrite this value irrespective of the value
populated fro DT. So update this value only when DT doesn't populate
the clock rate.
Signed-off-by: Lokesh Vutla <lokeshvutla@ti.com>
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| 0f4a395f | 22-Nov-2017 |
Rick Chen <rick@andestech.com> |
atcpit100: timer: Remove arch dependency.
ATCPIT100 is often used in AE3XX platform which is
based on NDS32 architecture recently. But in the future
Andestech will have AE250 platform which is embed
atcpit100: timer: Remove arch dependency.
ATCPIT100 is often used in AE3XX platform which is
based on NDS32 architecture recently. But in the future
Andestech will have AE250 platform which is embeded
ATCPIT100 timer based on RISCV architecture.
Signed-off-by: Rick Chen <rick@andestech.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
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| c6c85dc8 | 27-Nov-2017 |
Rick Chen <rickchen36@gmail.com> |
cosmetic: atcpit100_timer: Use device api to get platdata
Use dev_get_platdata to get private platdata.
Signed-off-by: rick <rick@andestech.com>
Signed-off-by: Rick Chen <rickchen36@gmail.com>
Revi
cosmetic: atcpit100_timer: Use device api to get platdata
Use dev_get_platdata to get private platdata.
Signed-off-by: rick <rick@andestech.com>
Signed-off-by: Rick Chen <rickchen36@gmail.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
show more ...
|