/*
 * EMIF driver
 *
 * Copyright (C) 2012 Texas Instruments, Inc.
 *
 * Aneesh V <aneesh@ti.com>
 * Santosh Shilimkar <santosh.shilimkar@ti.com>
 *
 * 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.
 */
#include <linux/kernel.h>
#include <linux/reboot.h>
#include <linux/platform_data/emif_plat.h>
#include <linux/io.h>
#include <linux/device.h>
#include <linux/platform_device.h>
#include <linux/interrupt.h>
#include <linux/slab.h>
#include <linux/seq_file.h>
#include <linux/module.h>
#include <linux/list.h>
#include <linux/spinlock.h>
#include <memory/jedec_ddr.h>
#include "emif.h"

/**
 * struct emif_data - Per device static data for driver's use
 * @duplicate:			Whether the DDR devices attached to this EMIF
 *				instance are exactly same as that on EMIF1. In
 *				this case we can save some memory and processing
 * @temperature_level:		Maximum temperature of LPDDR2 devices attached
 *				to this EMIF - read from MR4 register. If there
 *				are two devices attached to this EMIF, this
 *				value is the maximum of the two temperature
 *				levels.
 * @node:			node in the device list
 * @base:			base address of memory-mapped IO registers.
 * @dev:			device pointer.
 * @addressing			table with addressing information from the spec
 * @regs_cache:			An array of 'struct emif_regs' that stores
 *				calculated register values for different
 *				frequencies, to avoid re-calculating them on
 *				each DVFS transition.
 * @curr_regs:			The set of register values used in the last
 *				frequency