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| author | Marek Szyprowski <m.szyprowski@samsung.com> | 2019-04-09 11:56:02 +0200 |
|---|---|---|
| committer | Krzysztof Kozlowski <krzk@kernel.org> | 2019-04-10 17:58:22 +0200 |
| commit | 2997520c2d4e4d112e7b237bfa5a17a968ffc4bf (patch) | |
| tree | 145088634333632494023e0b63093fcbebc41c85 /arch/arm/mach-exynos | |
| parent | ARM: exynos: Fix infinite loops on CPU powerup failure (diff) | |
| download | linux-2997520c2d4e4d112e7b237bfa5a17a968ffc4bf.tar.xz linux-2997520c2d4e4d112e7b237bfa5a17a968ffc4bf.zip | |
ARM: exynos: Set MCPM as mandatory for Exynos542x/5800 SoCs
Support for Exynos5420/5422/5800 SoCs requires MCPM to properly boot all
CPU cores on all currectly supported platforms: Peach Pit (Exynos5420),
Odroid XU3/XU3lite/XU4/HC1 (Exynos5422) and Peach Pi (Exynos5800).
Without it some CPU cores fail to come online. Remove then the ability to
disable MCPM and make it mandatory when Exynos542x/5800 support is
enabled.
Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com>
Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
Diffstat (limited to 'arch/arm/mach-exynos')
| -rw-r--r-- | arch/arm/mach-exynos/Kconfig | 12 | ||||
| -rw-r--r-- | arch/arm/mach-exynos/Makefile | 2 | ||||
| -rw-r--r-- | arch/arm/mach-exynos/suspend.c | 6 |
3 files changed, 7 insertions, 13 deletions
diff --git a/arch/arm/mach-exynos/Kconfig b/arch/arm/mach-exynos/Kconfig index b40963cf91c7..1c518b8ee520 100644 --- a/arch/arm/mach-exynos/Kconfig +++ b/arch/arm/mach-exynos/Kconfig @@ -106,21 +106,15 @@ config SOC_EXYNOS5420 bool "SAMSUNG EXYNOS5420" default y depends on ARCH_EXYNOS5 + select MCPM if SMP + select ARM_CCI400_PORT_CTRL + select ARM_CPU_SUSPEND config SOC_EXYNOS5800 bool "SAMSUNG EXYNOS5800" default y depends on SOC_EXYNOS5420 -config EXYNOS5420_MCPM - bool "Exynos5420 Multi-Cluster PM support" - depends on MCPM && SOC_EXYNOS5420 - select ARM_CCI400_PORT_CTRL - select ARM_CPU_SUSPEND - help - This is needed to provide CPU and cluster power management - on Exynos5420 implementing big.LITTLE. - config EXYNOS_CPU_SUSPEND bool select ARM_CPU_SUSPEND diff --git a/arch/arm/mach-exynos/Makefile b/arch/arm/mach-exynos/Makefile index cd00c82a1add..264dbaa89c3d 100644 --- a/arch/arm/mach-exynos/Makefile +++ b/arch/arm/mach-exynos/Makefile @@ -18,5 +18,5 @@ plus_sec := $(call as-instr,.arch_extension sec,+sec) AFLAGS_exynos-smc.o :=-Wa,-march=armv7-a$(plus_sec) AFLAGS_sleep.o :=-Wa,-march=armv7-a$(plus_sec) -obj-$(CONFIG_EXYNOS5420_MCPM) += mcpm-exynos.o +obj-$(CONFIG_MCPM) += mcpm-exynos.o CFLAGS_mcpm-exynos.o += -march=armv7-a diff --git a/arch/arm/mach-exynos/suspend.c b/arch/arm/mach-exynos/suspend.c index 64a57e703fc2..be122af0de8f 100644 --- a/arch/arm/mach-exynos/suspend.c +++ b/arch/arm/mach-exynos/suspend.c @@ -268,7 +268,7 @@ static int exynos5420_cpu_suspend(unsigned long arg) unsigned int cluster = MPIDR_AFFINITY_LEVEL(mpidr, 1); unsigned int cpu = MPIDR_AFFINITY_LEVEL(mpidr, 0); - if (IS_ENABLED(CONFIG_EXYNOS5420_MCPM)) { + if (IS_ENABLED(CONFIG_MCPM)) { mcpm_set_entry_vector(cpu, cluster, exynos_cpu_resume); mcpm_cpu_suspend(); } @@ -351,7 +351,7 @@ static void exynos5420_pm_prepare(void) exynos_pm_enter_sleep_mode(); /* ensure at least INFORM0 has the resume address */ - if (IS_ENABLED(CONFIG_EXYNOS5420_MCPM)) + if (IS_ENABLED(CONFIG_MCPM)) pmu_raw_writel(__pa_symbol(mcpm_entry_point), S5P_INFORM0); tmp = pmu_raw_readl(EXYNOS_L2_OPTION(0)); @@ -455,7 +455,7 @@ static void exynos5420_prepare_pm_resume(void) mpidr = read_cpuid_mpidr(); cluster = MPIDR_AFFINITY_LEVEL(mpidr, 1); - if (IS_ENABLED(CONFIG_EXYNOS5420_MCPM)) + if (IS_ENABLED(CONFIG_MCPM)) WARN_ON(mcpm_cpu_powered_up()); if (IS_ENABLED(CONFIG_HW_PERF_EVENTS) && cluster != 0) { |