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/***************************************************************************
* Copyright (C) 2008 by Kevin McGuire *
* Copyright (C) 2008 by Marcel Wijlaars *
*
* This program is free software; you can redistribute it and/or modify *
* it under the terms of the GNU General Public License as published by *
* the Free Software Foundation; either version 2 of the License, or *
* (at your option) any later version. *
* *
* This program is distributed in the hope that 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, write to the *
* Free Software Foundation, Inc., *
* 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. *
***************************************************************************/
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include "replacements.h"
#include "flash.h"
#include "target.h"
#include "log.h"
#include "armv4_5.h"
#include "algorithm.h"
#include "binarybuffer.h"
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
int x7026_flash_bank_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc, struct flash_bank_s *bank);
int x7026_register_commands(struct command_context_s *cmd_ctx);
int x7026_erase(struct flash_bank_s *bank, int first, int last);
int x7026_protect(struct flash_bank_s *bank, int set, int first, int last);
int x7026_write(struct flash_bank_s *bank, u8 *buffer, u32 offset, u32 count);
int x7026_probe(struct flash_bank_s *bank);
int x7026_info(struct flash_bank_s *bank, char *buf, int buf_size);
int x7026_protect_check(struct flash_bank_s *bank);
int x7026_erase_check(struct flash_bank_s *bank);
#define ADUC7026_FLASH 0xfffff800
#define ADUC7026_FLASH_FEESTA (0*4)
#define ADUC7026_FLASH_FEEMOD (1*4)
#define ADUC7026_FLASH_FEECON (2*4)
#define ADUC7026_FLASH_FEEDAT (3*4)
#define ADUC7026_FLASH_FEEADR (4*4)
#define ADUC7026_FLASH_FEESIGN (5*4)
#define ADUC7026_FLASH_FEEPRO (6*4)
#define ADUC7026_FLASH_FEEHIDE (7*4)
typedef struct{
uint32_t feesta;
uint32_t feemod;
uint32_t feecon;
uint32_t feedat;
uint32_t feeadr;
uint32_t feesign;
uint32_t feepro;
uint32_t feehide;
} ADUC7026_FLASH_MMIO;
typedef struct
{
unsigned char tmp;
} X7026_BANK;
flash_driver_t x7026_flash =
{
.name = "x7026",
.register_commands = x7026_register_commands,
.flash_bank_command = x7026_flash_bank_command,
.erase = x7026_erase,
.protect = x7026_protect,
.write = x7026_write,
.probe = x7026_probe,
.auto_probe = x7026_probe,
.erase_check = x7026_erase_check,
.protect_check = x7026_protect_check,
.info = x7026_info
};
int x7026_register_commands(struct command_context_s *cmd_ctx)
{
printf("x7026_register_commands not implemented yet.\n");
return ERROR_OK;
}
/* flash bank str7x <base> <size> 0 0 <target#> */
int x7026_flash_bank_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc, struct flash_bank_s *bank)
{
X7026_BANK *nbank;
if (argc < 6)
{
LOG_WARNING("incomplete flash_bank x7026 configuration");
return ERROR_FLASH_BANK_INVALID;
}
nbank = malloc(sizeof(X7026_BANK));
/* just warn that we are used to normally using 0x80000 */
if(bank->base != 0x80000)
{
LOG_WARNING("Default base address is 0x80000 on the ADuC7026!");
}
nbank->tmp = 1;
bank->driver_priv = nbank;
return ERROR_OK;
}
int x7026_protect_check(struct flash_bank_s *bank)
{
printf("x7026_protect_check not implemented yet.\n");
return ERROR_OK;
}
int x7026_erase(struct flash_bank_s *bank, int first, int last)
{
unsigned int x;
int count;
u32 v;
target_t *target = bank->target;
/* mass erase */
if((first | last) == 0)
{
printf("performing mass erase.\n");
target_write_u32(target, ADUC7026_FLASH + ADUC7026_FLASH_FEEDAT, 0x3cff);
target_write_u32(target, ADUC7026_FLASH + ADUC7026_FLASH_FEEADR, 0xffc3);
target_read_u32(target, ADUC7026_FLASH + ADUC7026_FLASH_FEEMOD, &v);
target_write_u32(target, ADUC7026_FLASH + ADUC7026_FLASH_FEEMOD, v | 0x8);
target_write_u32(target, ADUC7026_FLASH + ADUC7026_FLASH_FEECON, 0x06);
for(v = 0x4; v & 0x4;
target_read_u32(target, ADUC7026_FLASH + ADUC7026_FLASH_FEESTA, &v));
if(!(v & 0x1))
{
printf("mass erase failed.\n");
return -1;
}
printf("mass erase successful.\n");
return ERROR_OK;
}
count = last - first;
for(x = 0; x < (unsigned int)count; ++x)
{
target_write_u32(target, ADUC7026_FLASH + ADUC7026_FLASH_FEEADR, bank->base + first * 512 + x * 512);
target_write_u32(target, ADUC7026_FLASH + ADUC7026_FLASH_FEECON, 0x05);
for(v = 0x4; v & 0x4; target_read_u32(target, ADUC7026_FLASH + ADUC7026_FLASH_FEESTA, &v));
if(!(v & 0x1))
{
printf("erase failed for page address %x\n", bank->base + first * 512 + x * 512);
return -1;
}
printf("erased page address %x\n", bank->base + first * 512 + x * 512);
}
return ERROR_OK;
}
int x7026_protect(struct flash_bank_s *bank, int set, int first, int last)
{
printf("x7026_protect not implemented yet.\n");
return -1;
}
int x7026_write(struct flash_bank_s *bank, u8 *buffer, u32 offset, u32 count)
{
unsigned int x;
u32 v;
target_t *target = bank->target;
for(x = 0; x < count; x += 2)
{
target_write_u32(target, ADUC7026_FLASH + ADUC7026_FLASH_FEEADR, offset + x);
/* if we able to encounter a single byte instead of a word */
if((x + 1) == count)
{
target_write_u32(target, ADUC7026_FLASH + ADUC7026_FLASH_FEEDAT, buffer[x]);
}else{
target_write_u32(target, ADUC7026_FLASH + ADUC7026_FLASH_FEEDAT, buffer[x] | (buffer[x+1] << 8));
}
target_write_u32(target, ADUC7026_FLASH + ADUC7026_FLASH_FEECON, 0x02);
for(v = 0x4; v & 0x4; target_read_u32(target, ADUC7026_FLASH + ADUC7026_FLASH_FEESTA, &v));
if(!(v & 0x1))
{
printf("single write failed for address %x.\n", offset + x);
return -1;
}
printf("single write for address %x.\n", offset + x);
}
return ERROR_OK;
}
int x7026_probe(struct flash_bank_s *bank)
{
printf("x7026_probe not implemented yet.\n");
return ERROR_OK;
}
int x7026_info(struct flash_bank_s *bank, char *buf, int buf_size)
{
snprintf(buf, buf_size, "x7026 flash driver info" );
return -1;
}
int x7026_erase_check(struct flash_bank_s *bank)
{
printf("x7026_erase_check not implemented yet.\n");
return -1;
}
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