linux/arch/arm/mach-davinci/include/mach/cpuidle.h
Sekhar Nori a6c0f6eca1 davinci: add CPU idle driver
The patch adds support for DaVinci cpu idle driver.

Two idle states are defined:
1. Wait for interrupt
2. Wait for interrupt and DDR self-refresh (or power down)

Some DaVinci SoCs support putting DDR in self-refresh (eg Dm644x, DM6467)
while others support putting DDR in self-refresh and power down (eg DM35x,
DA8xx).

Putting DDR (or mDDR) in power down saves more power than self-refresh.

The patch has been tested on DA850/OMAP-L138 EVM.

Signed-off-by: Sekhar Nori <nsekhar@ti.com>
Signed-off-by: Kevin Hilman <khilman@deeprootsystems.com>
2009-11-25 10:21:37 -08:00

17 lines
419 B
C

/*
* TI DaVinci cpuidle platform support
*
* 2009 (C) Texas Instruments, Inc. http://www.ti.com/
*
* This file is licensed under the terms of the GNU General Public License
* version 2. This program is licensed "as is" without any warranty of any
* kind, whether express or implied.
*/
#ifndef _MACH_DAVINCI_CPUIDLE_H
#define _MACH_DAVINCI_CPUIDLE_H
struct davinci_cpuidle_config {
u32 ddr2_pdown;
};
#endif