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/*
* Copyright © 2010 ST Microelectronics
* Shiraz Hashim <shiraz.hashim@st.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 __MTD_SPEAR_SMI_H
#define __MTD_SPEAR_SMI_H
#include <linux/types.h>
#include <linux/mtd/mtd.h>
#include <linux/mtd/partitions.h>
#include <linux/platform_device.h>
#include <linux/of.h>
/* max possible slots for serial-nor flash chip in the SMI controller */
#define MAX_NUM_FLASH_CHIP 4
/* macro to define partitions for flash devices */
#define DEFINE_PARTS(n, of, s) \
{ \
.name = n, \
.offset = of, \
.size = s, \
}
/**
* struct spear_smi_flash_info - platform structure for passing flash
* information
*
* name: name of the serial nor flash for identification
* mem_base: the memory base on which the flash is mapped
* size: size of the flash in bytes
* partitions: parition details
* nr_partitions: number of partitions
* fast_mode: whether flash supports fast mode
*/
struct spear_smi_flash_info {
char *name;
unsigned long mem_base;
unsigned long size;
struct mtd_partition *partitions;
int nr_partitions;
u8 fast_mode;
};
/**
* struct spear_smi_plat_data - platform structure for configuring smi
*
* clk_rate: clk rate at which SMI must operate
* num_flashes: number of flashes present on board
* board_flash_info: specific details of each flash present on board
*/
struct spear_smi_plat_data {
unsigned long clk_rate;
int num_flashes;
struct spear_smi_flash_info *board_flash_info;
struct device_node *np[MAX_NUM_FLASH_CHIP];
};
#endif /* __MTD_SPEAR_SMI_H */
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