linux/arch/arm/mach-mvebu/Kconfig
Thomas Petazzoni 52fcc56753 ARM: mvebu: select ARM_CPU_SUSPEND for Marvell EBU v7 platforms
On Marvell Armada platforms, the PMSU (Power Management Service Unit)
controls a number of power management related activities, needed for
things like suspend/resume, CPU hotplug, cpuidle or even simply SMP.

Since cpuidle support was added for Armada XP, the pmsu.c file in
arch/arm/mach-mvebu/ calls the cpu_suspend() and cpu_resume() ARM
functions, which are only available when
CONFIG_ARM_CPU_SUSPEND=y. Therefore, configurations that have
CONFIG_ARM_CPU_SUSPEND disabled due to PM_SLEEP being disabled no
longer build properly, due to undefined references to cpu_suspend()
and cpu_resume().

To fix this, this patch simply ensures CONFIG_ARM_CPU_SUSPEND is
always enabled for Marvell EBU v7 platforms. Doing things in a more
fine-grained way would require a lot of #ifdef-ery in pmsu.c to
isolate the parts that use cpu_suspend()/cpu_resume(), and those parts
would anyway have been needed as soon as either one of suspend/resume,
CPU hotplug or cpuidle was enabled.

Reported-by: Ezequiel Garcia <ezequiel.garcia@free-electrons.com>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Link: https://lkml.kernel.org/r/1402488397-31381-1-git-send-email-thomas.petazzoni@free-electrons.com
Acked-by: Ezequiel Garcia <ezequiel.garcia@free-electrons.com>
Signed-off-by: Jason Cooper <jason@lakedaemon.net>
2014-06-20 20:38:14 +00:00

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config ARCH_MVEBU
bool "Marvell Engineering Business Unit (MVEBU) SoCs" if (ARCH_MULTI_V7 || ARCH_MULTI_V5)
select ARCH_SUPPORTS_BIG_ENDIAN
select CLKSRC_MMIO
select GENERIC_IRQ_CHIP
select PINCTRL
select PLAT_ORION
select SOC_BUS
select MVEBU_MBUS
select ZONE_DMA if ARM_LPAE
select ARCH_REQUIRE_GPIOLIB
select PCI_QUIRKS if PCI
select OF_ADDRESS_PCI
if ARCH_MVEBU
menu "Marvell EBU SoC variants"
config MACH_MVEBU_V7
bool
select ARMADA_370_XP_TIMER
select CACHE_L2X0
select ARM_CPU_SUSPEND
config MACH_ARMADA_370
bool "Marvell Armada 370 boards" if ARCH_MULTI_V7
select ARMADA_370_CLK
select CPU_PJ4B
select MACH_MVEBU_V7
select PINCTRL_ARMADA_370
help
Say 'Y' here if you want your kernel to support boards based
on the Marvell Armada 370 SoC with device tree.
config MACH_ARMADA_375
bool "Marvell Armada 375 boards" if ARCH_MULTI_V7
select ARM_ERRATA_720789
select ARM_ERRATA_753970
select ARM_GIC
select ARMADA_375_CLK
select HAVE_ARM_SCU
select HAVE_ARM_TWD if SMP
select HAVE_SMP
select MACH_MVEBU_V7
select PINCTRL_ARMADA_375
help
Say 'Y' here if you want your kernel to support boards based
on the Marvell Armada 375 SoC with device tree.
config MACH_ARMADA_38X
bool "Marvell Armada 380/385 boards" if ARCH_MULTI_V7
select ARM_ERRATA_720789
select ARM_ERRATA_753970
select ARM_GIC
select ARMADA_38X_CLK
select HAVE_ARM_SCU
select HAVE_ARM_TWD if SMP
select HAVE_SMP
select MACH_MVEBU_V7
select PINCTRL_ARMADA_38X
help
Say 'Y' here if you want your kernel to support boards based
on the Marvell Armada 380/385 SoC with device tree.
config MACH_ARMADA_XP
bool "Marvell Armada XP boards" if ARCH_MULTI_V7
select ARMADA_XP_CLK
select CPU_PJ4B
select MACH_MVEBU_V7
select PINCTRL_ARMADA_XP
help
Say 'Y' here if you want your kernel to support boards based
on the Marvell Armada XP SoC with device tree.
config MACH_DOVE
bool "Marvell Dove boards" if ARCH_MULTI_V7
select CACHE_L2X0
select CPU_PJ4
select DOVE_CLK
select ORION_IRQCHIP
select ORION_TIMER
select PINCTRL_DOVE
help
Say 'Y' here if you want your kernel to support the
Marvell Dove using flattened device tree.
config MACH_KIRKWOOD
bool "Marvell Kirkwood boards" if ARCH_MULTI_V5
select ARCH_HAS_CPUFREQ
select ARCH_REQUIRE_GPIOLIB
select CPU_FEROCEON
select KIRKWOOD_CLK
select ORION_IRQCHIP
select ORION_TIMER
select PCI
select PCI_QUIRKS
select PINCTRL_KIRKWOOD
help
Say 'Y' here if you want your kernel to support boards based
on the Marvell Kirkwood device tree.
endmenu
endif