linux

iv/linux

History

Marek Szyprowski 0155cd348b ARM: exynos: MCPM: Restore big.LITTLE cpuidle support

[ Upstream commit ea9dd8f61c8a890843f68e8dc0062ce78365aab8 ]

Call exynos_cpu_power_up(cpunr) unconditionally. This is needed by the
big.LITTLE cpuidle driver and has no side-effects on other code paths.

The additional soft-reset call during little core power up has been added
to properly boot all cores on the Exynos5422-based boards with secure
firmware (like Odroid XU3/XU4 family). This however broke big.LITTLE
CPUidle driver, which worked only on boards without secure firmware (like
Peach-Pit/Pi Chromebooks). Apply the workaround only when board is
running under secure firmware.

Fixes: 833b5794e330 ("ARM: EXYNOS: reset Little cores when cpu is up")
Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com>
Reviewed-by: Lukasz Luba <lukasz.luba@arm.com>
Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>

2020-08-19 08:15:55 +02:00

include/mach

ARM: exynos: Remove static mapping of SCU SFR

2018-05-13 14:06:55 +02:00

common.h

docs: arm: convert docs to ReST and rename to *.rst

2019-07-15 09:20:24 -03:00

exynos-smc.S

ARM: use arch_extension directive instead of arch argument

2019-06-19 09:44:25 -07:00

exynos.c

ARM: exynos: Add CPU state management for Exynos542x under secure firmware