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/*
* OMAP SoC specific OPP Data helpers
*
* Copyright (C) 2009-2010 Texas Instruments Incorporated - http://www.ti.com/
* Nishanth Menon
* Kevin Hilman
* Copyright (C) 2010 Nokia Corporation.
* Eduardo Valentin
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
*
* This program is distributed "as is" WITHOUT ANY WARRANTY of any
* kind, whether express or implied; without even the implied warranty
* of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*/
#ifndef __ARCH_ARM_MACH_OMAP2_OMAP_OPP_DATA_H
#define __ARCH_ARM_MACH_OMAP2_OMAP_OPP_DATA_H
#include <plat/omap_hwmod.h>
/*
* *BIG FAT WARNING*:
* USE the following ONLY in opp data initialization common to an SoC.
* DO NOT USE these in board files/pm core etc.
*/
/**
* struct omap_opp_def - OMAP OPP Definition
* @hwmod_name: Name of the hwmod for this domain
* @freq: Frequency in hertz corresponding to this OPP
* @u_volt: Nominal voltage in microvolts corresponding to this OPP
* @default_available: True/false - is this OPP available by default
*
* OMAP SOCs have a standard set of tuples consisting of frequency and voltage
* pairs that the device will support per voltage domain. This is called
* Operating Points or OPP. The actual definitions of OMAP Operating Points
* varies over silicon within the same family of devices. For a specific
* domain, you can have a set of {frequency, voltage} pairs and this is denoted
* by an array of omap_opp_def. As the kernel boots and more information is
* available, a set of these are activated based on the precise nature of
* device the kernel boots up on. It is interesting to remember that each IP
* which belongs to a voltage domain may define their own set of OPPs on top
* of this - but this is handled by the appropriate driver.
*/
struct omap_opp_def {
char *hwmod_name;
unsigned long freq;
unsigned long u_volt;
bool default_available;
};
/*
* Initialization wrapper used to define an OPP for OMAP variants.
*/
#define OPP_INITIALIZER(_hwmod_name, _enabled, _freq, _uv) \
{ \
.hwmod_name = _hwmod_name, \
.default_available = _enabled, \
.freq = _freq, \
.u_volt = _uv, \
}
/* Use this to initialize the default table */
extern int __init omap_init_opp_table(struct omap_opp_def *opp_def,
u32 opp_def_size);
#endif /* __ARCH_ARM_MACH_OMAP2_OMAP_OPP_DATA_H */
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