clocksource/drivers/arm_arch_timer: Introduce generic errata handling infrastructure

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Currently we have code inline in the arch timer probe path to cater for
Freescale erratum A-008585, complete with ifdeffery. This is a little
ugly, and will get worse as we try to add more errata handling.

This patch refactors the handling of Freescale erratum A-008585. Now the
erratum is described in a generic arch_timer_erratum_workaround
structure, and the probe path can iterate over these to detect errata
and enable workarounds.

This will simplify the addition and maintenance of code handling
Hisilicon erratum 161010101.

Signed-off-by: Ding Tianhong <dingtianhong@huawei.com>
[Mark: split patch, correct Kconfig, reword commit message]
Signed-off-by: Mark Rutland <mark.rutland@arm.com>
Acked-by: Daniel Lezcano <daniel.lezcano@linaro.org>
Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>

...

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Ding Tianhong 2017-02-06 16:47:41 +00:00 • committed by Daniel Lezcano

parent 5444ea6a7f

commit 16d10ef29f

3 changed files with 80 additions and 54 deletions

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38

arch/arm64/include/asm/arch_timer.h

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4

drivers/clocksource/Kconfig

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90

drivers/clocksource/arm_arch_timer.c

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