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/*
* include/linux/tegra_pflash.h
*
* Copyright (c) 2013, NVIDIA CORPORATION. All rights reserved.
*
* This program is free software; you can redistribute it and/or modify it
* under the terms and conditions of the GNU General Public License,
* version 2, as published by the Free Software Foundation.
*
* This program is distributed in the hope it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
* more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*
*/
#ifndef _TEGRA_PFLASH_H_
#define _TEGRA_PFLASH_H_
#define MAX_CHIPS 16
struct pflash_data {
char *buffer[MAX_CHIPS];
unsigned long chip_ofs[MAX_CHIPS];
unsigned int chip_numbyte[MAX_CHIPS];
char start_prog[MAX_CHIPS];
char chip_erase[MAX_CHIPS];
unsigned long chip_erase_size[MAX_CHIPS];
};
struct nv_flash_data {
unsigned long erasesize;
unsigned long chipsize;
int cmd_set_type;
unsigned long long flash_total_size;
int max_num_chips;
};
#define ERASESIZE 0x80000
#define COMMAND_SET_TYPE 0x02
/* IOCTL numbers */
#define PFLASH_MAGIC 0x85
#define PFLASH_CFI2 _IOW(PFLASH_MAGIC, 2, struct pflash_data)
#define PFLASH_GET_MAXCHIPS _IO(PFLASH_MAGIC, 3)
#define PFLASH_CHIP_INFO _IOR(PFLASH_MAGIC, 4, struct nv_flash_data)
#define CHIP_BUFFER_SIZE 1048576
#define AMD_WRITE_BUFFER_SIZE 256
#define FLASH_ERASED_VALUE 0xffffffff
static int pflash_major;
static struct cdev pflash_cdev;
static struct class *pflash_class;
#define PFLASH_DEVICE "pflash"
#define PFLASH_DEVICE_NO 1
#define PFLASH_MAJOR 0 /* Get dynamically */
#define PFLASH_MINOR 0
/* extern struct pflash_device pflash_device_info; */
static unsigned int flash_num_chips;
struct nv_flash_data flash_data;
#define pflash_nor_write(map, write_value, sectaddr) \
({ tegra_nor_write(map, write_value, sectaddr); mb(); })
#define pflash_nor_read(map, sectaddr) \
({ map_word __readval; \
__readval = tegra_nor_read(map, sectaddr); \
mb(); __readval; })
#endif
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