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| author | Alan Tull <atull@opensource.altera.com> | 2015-06-05 13:24:52 (GMT) |
|---|---|---|
| committer | Kevin Hilman <khilman@linaro.org> | 2015-06-10 23:02:11 (GMT) |
| commit | 44fd8c7d4005f660f48679439f0a54225ba234a4 (patch) | |
| tree | 86d07642758f6c26b835f9b24bad955cd0daa9d5 /arch/arm/mach-socfpga/Kconfig | |
| parent | 45be0cdb5323d6f2b4005a4d9263a72eac2040cd (diff) | |
| download | linux-44fd8c7d4005f660f48679439f0a54225ba234a4.tar.xz | |
ARM: socfpga: support suspend to ram
Add code that requests that the sdr controller go into
self-refresh mode. This code is run from ocram.
Suspend-to-RAM and EDAC support are mutually exclusive on
SOCFPGA. If the EDAC is enabled, it will prevent the
platform from going into suspend.
Example of how to request to suspend to ram:
$ echo enabled > \
/sys/devices/soc/ffc02000.serial0/tty/ttyS0/power/wakeup
$ echo -n mem > /sys/power/state
Signed-off-by: Alan Tull <atull@opensource.altera.com>
Signed-off-by: Dinh Nguyen <dinguyen@opensource.altera.com>
Signed-off-by: Kevin Hilman <khilman@linaro.org>
Diffstat (limited to 'arch/arm/mach-socfpga/Kconfig')
| -rw-r--r-- | arch/arm/mach-socfpga/Kconfig | 10 |
1 files changed, 9 insertions, 1 deletions
diff --git a/arch/arm/mach-socfpga/Kconfig b/arch/arm/mach-socfpga/Kconfig index f420a1b..90efdeb 100644 --- a/arch/arm/mach-socfpga/Kconfig +++ b/arch/arm/mach-socfpga/Kconfig @@ -1,4 +1,4 @@ -config ARCH_SOCFPGA +menuconfig ARCH_SOCFPGA bool "Altera SOCFPGA family" if ARCH_MULTI_V7 select ARCH_SUPPORTS_BIG_ENDIAN select ARM_AMBA @@ -9,3 +9,11 @@ config ARCH_SOCFPGA select HAVE_ARM_SCU select HAVE_ARM_TWD if SMP select MFD_SYSCON + +if ARCH_SOCFPGA +config SOCFPGA_SUSPEND + bool "Suspend to RAM on SOCFPGA" + help + Select this if you want to enable Suspend-to-RAM on SOCFPGA + platforms. +endif |