66 lines
1.7 KiB
C
66 lines
1.7 KiB
C
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/*
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* Copyright © 2010 ST Microelectronics
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* Shiraz Hashim <shiraz.hashim@st.com>
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*
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* This file is licensed under the terms of the GNU General Public
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* License version 2. This program is licensed "as is" without any
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* warranty of any kind, whether express or implied.
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*/
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#ifndef __MTD_SPEAR_SMI_H
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#define __MTD_SPEAR_SMI_H
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#include <linux/types.h>
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#include <linux/mtd/mtd.h>
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#include <linux/mtd/partitions.h>
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#include <linux/platform_device.h>
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#include <linux/of.h>
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/* max possible slots for serial-nor flash chip in the SMI controller */
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#define MAX_NUM_FLASH_CHIP 4
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/* macro to define partitions for flash devices */
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#define DEFINE_PARTS(n, of, s) \
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{ \
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.name = n, \
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.offset = of, \
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.size = s, \
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}
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/**
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* struct spear_smi_flash_info - platform structure for passing flash
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* information
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*
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* name: name of the serial nor flash for identification
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* mem_base: the memory base on which the flash is mapped
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* size: size of the flash in bytes
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* partitions: parition details
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* nr_partitions: number of partitions
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* fast_mode: whether flash supports fast mode
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*/
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struct spear_smi_flash_info {
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char *name;
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unsigned long mem_base;
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unsigned long size;
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struct mtd_partition *partitions;
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int nr_partitions;
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u8 fast_mode;
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};
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/**
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* struct spear_smi_plat_data - platform structure for configuring smi
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*
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* clk_rate: clk rate at which SMI must operate
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* num_flashes: number of flashes present on board
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* board_flash_info: specific details of each flash present on board
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*/
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struct spear_smi_plat_data {
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unsigned long clk_rate;
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int num_flashes;
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struct spear_smi_flash_info *board_flash_info;
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struct device_node *np[MAX_NUM_FLASH_CHIP];
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};
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#endif /* __MTD_SPEAR_SMI_H */
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