diff options
| author | Alan Tull <atull@opensource.altera.com> | 2015-06-05 08:24:52 -0500 |
|---|---|---|
| committer | Kevin Hilman <khilman@linaro.org> | 2015-06-10 16:02:11 -0700 |
| commit | 44fd8c7d4005f660f48679439f0a54225ba234a4 (patch) | |
| tree | 86d07642758f6c26b835f9b24bad955cd0daa9d5 /arch/arm/mach-socfpga/core.h | |
| parent | 45be0cdb5323d6f2b4005a4d9263a72eac2040cd (diff) | |
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/core.h')
| -rw-r--r-- | arch/arm/mach-socfpga/core.h | 6 |
1 files changed, 5 insertions, 1 deletions
diff --git a/arch/arm/mach-socfpga/core.h b/arch/arm/mach-socfpga/core.h index 27e7c65093c0..2484179c2b47 100644 --- a/arch/arm/mach-socfpga/core.h +++ b/arch/arm/mach-socfpga/core.h @@ -1,6 +1,6 @@ /* * Copyright 2012 Pavel Machek <pavel@denx.de> - * Copyright (C) 2012 Altera Corporation + * Copyright (C) 2012-2015 Altera Corporation * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by @@ -40,6 +40,10 @@ extern void socfpga_sysmgr_init(void); extern void __iomem *sys_manager_base_addr; extern void __iomem *rst_manager_base_addr; +extern void __iomem *sdr_ctl_base_addr; + +u32 socfpga_sdram_self_refresh(u32 sdr_base); +extern unsigned int socfpga_sdram_self_refresh_sz; extern char secondary_trampoline, secondary_trampoline_end; |