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openocd/src/flash/aduc702x.c
David Brownell db094c2e60 target: don't implicitly include "algorithm.h" 
Most files in the tree seem to have ended up including this,
and *quite* needlessly ... only code implementing or using
downloadable algorithms actually needs these declarations.

So take it out of the header files which included it, and put
it in files which use it ... reduce needless interdependencies.

Also: "algorithm.h" doesn't need to include "types.h" again;
it already comes from a different header.

Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
2009-11-16 00:35:05 -08:00

426 lines
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/***************************************************************************
* Copyright (C) 2008 by Kevin McGuire *
* Copyright (C) 2008 by Marcel Wijlaars *
* Copyright (C) 2009 by Michael Ashton *
* *
* 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 "flash.h"
#include "armv4_5.h"
#include "binarybuffer.h"
#include "time_support.h"
#include "algorithm.h"
static int aduc702x_build_sector_list(struct flash_bank *bank);
static int aduc702x_check_flash_completion(struct target* target, unsigned int timeout_ms);
static int aduc702x_set_write_enable(struct target *target, int enable);
#define ADUC702x_FLASH 0xfffff800
#define ADUC702x_FLASH_FEESTA (0*4)
#define ADUC702x_FLASH_FEEMOD (1*4)
#define ADUC702x_FLASH_FEECON (2*4)
#define ADUC702x_FLASH_FEEDAT (3*4)
#define ADUC702x_FLASH_FEEADR (4*4)
#define ADUC702x_FLASH_FEESIGN (5*4)
#define ADUC702x_FLASH_FEEPRO (6*4)
#define ADUC702x_FLASH_FEEHIDE (7*4)
struct aduc702x_flash_bank {
struct working_area *write_algorithm;
};
/* flash bank aduc702x 0 0 0 0 <target#>
* The ADC7019-28 devices all have the same flash layout */
FLASH_BANK_COMMAND_HANDLER(aduc702x_flash_bank_command)
{
struct aduc702x_flash_bank *nbank;
nbank = malloc(sizeof(struct aduc702x_flash_bank));
bank->base = 0x80000;
bank->size = 0xF800; // top 4k not accessible
bank->driver_priv = nbank;
aduc702x_build_sector_list(bank);
return ERROR_OK;
}
static int aduc702x_build_sector_list(struct flash_bank *bank)
{
//aduc7026_struct flash_bank *aduc7026_info = bank->driver_priv;
int i = 0;
uint32_t offset = 0;
// sector size is 512
bank->num_sectors = bank->size / 512;
bank->sectors = malloc(sizeof(struct flash_sector) * bank->num_sectors);
for (i = 0; i < bank->num_sectors; ++i)
{
bank->sectors[i].offset = offset;
bank->sectors[i].size = 512;
offset += bank->sectors[i].size;
bank->sectors[i].is_erased = -1;
bank->sectors[i].is_protected = 0;
}
return ERROR_OK;
}
static int aduc702x_protect_check(struct flash_bank *bank)
{
printf("aduc702x_protect_check not implemented yet.\n");
return ERROR_OK;
}
static int aduc702x_erase(struct flash_bank *bank, int first, int last)
{
//int res;
int x;
int count;
//uint32_t v;
struct target *target = bank->target;
aduc702x_set_write_enable(target, 1);
/* mass erase */
if (((first | last) == 0) || ((first == 0) && (last >= bank->num_sectors))) {
LOG_DEBUG("performing mass erase.\n");
target_write_u16(target, ADUC702x_FLASH + ADUC702x_FLASH_FEEDAT, 0x3cff);
target_write_u16(target, ADUC702x_FLASH + ADUC702x_FLASH_FEEADR, 0xffc3);
target_write_u8(target, ADUC702x_FLASH + ADUC702x_FLASH_FEECON, 0x06);
if (aduc702x_check_flash_completion(target, 3500) != ERROR_OK)
{
LOG_ERROR("mass erase failed\n");
aduc702x_set_write_enable(target, 0);
return ERROR_FLASH_OPERATION_FAILED;
}
LOG_DEBUG("mass erase successful.\n");
return ERROR_OK;
} else {
unsigned long adr;
count = last - first + 1;
for (x = 0; x < count; ++x)
{
adr = bank->base + ((first + x) * 512);
target_write_u16(target, ADUC702x_FLASH + ADUC702x_FLASH_FEEADR, adr);
target_write_u8(target, ADUC702x_FLASH + ADUC702x_FLASH_FEECON, 0x05);
if (aduc702x_check_flash_completion(target, 50) != ERROR_OK)
{
LOG_ERROR("failed to erase sector at address 0x%08lX\n", adr);
aduc702x_set_write_enable(target, 0);
return ERROR_FLASH_SECTOR_NOT_ERASED;
}
LOG_DEBUG("erased sector at address 0x%08lX\n", adr);
}
}
aduc702x_set_write_enable(target, 0);
return ERROR_OK;
}
static int aduc702x_protect(struct flash_bank *bank, int set, int first, int last)
{
printf("aduc702x_protect not implemented yet.\n");
return ERROR_FLASH_OPERATION_FAILED;
}
/* If this fn returns ERROR_TARGET_RESOURCE_NOT_AVAILABLE, then the caller can fall
* back to another mechanism that does not require onboard RAM
*
* Caller should not check for other return values specifically
*/
static int aduc702x_write_block(struct flash_bank *bank, uint8_t *buffer, uint32_t offset, uint32_t count)
{
struct aduc702x_flash_bank *aduc702x_info = bank->driver_priv;
struct target *target = bank->target;
uint32_t buffer_size = 7000;
struct working_area *source;
uint32_t address = bank->base + offset;
struct reg_param reg_params[6];
struct armv4_5_algorithm armv4_5_info;
int retval = ERROR_OK;
if (((count%2)!=0)||((offset%2)!=0))
{
LOG_ERROR("write block must be multiple of two bytes in offset & length");
return ERROR_FAIL;
}
/* parameters:
r0 - address of source data (absolute)
r1 - number of halfwords to be copied
r2 - start address in flash (offset from beginning of flash memory)
r3 - exit code
r4 - base address of flash controller (0xFFFFF800)
registers:
r5 - scratch
r6 - set to 2, used to write flash command
*/
uint32_t aduc702x_flash_write_code[] = {
//<_start>:
0xe3a05008, // mov r5, #8 ; 0x8
0xe5845004, // str r5, [r4, #4]
0xe3a06002, // mov r6, #2 ; 0x2
//<next>:
0xe1c421b0, // strh r2, [r4, #16]
0xe0d050b2, // ldrh r5, [r0], #2
0xe1c450bc, // strh r5, [r4, #12]
0xe5c46008, // strb r6, [r4, #8]
//<wait_complete>:
0xe1d430b0, // ldrh r3, [r4]
0xe3130004, // tst r3, #4 ; 0x4
0x1afffffc, // bne 1001c <wait_complete>
0xe2822002, // add r2, r2, #2 ; 0x2
0xe2511001, // subs r1, r1, #1 ; 0x1
0x0a000001, // beq 1003c <done>
0xe3130001, // tst r3, #1 ; 0x1
0x1afffff3, // bne 1000c <next>
//<done>:
0xeafffffe // b 1003c <done>
};
/* flash write code */
if (target_alloc_working_area(target, sizeof(aduc702x_flash_write_code),
&aduc702x_info->write_algorithm) != ERROR_OK)
{
LOG_WARNING("no working area available, can't do block memory writes");
return ERROR_TARGET_RESOURCE_NOT_AVAILABLE;
};
retval=target_write_buffer(target, aduc702x_info->write_algorithm->address,
sizeof(aduc702x_flash_write_code), (uint8_t*)aduc702x_flash_write_code);
if (retval!=ERROR_OK)
{
return retval;
}
/* memory buffer */
while (target_alloc_working_area(target, buffer_size, &source) != ERROR_OK)
{
buffer_size /= 2;
if (buffer_size <= 256)
{
/* if we already allocated the writing code, but failed to get a buffer, free the algorithm */
if (aduc702x_info->write_algorithm)
target_free_working_area(target, aduc702x_info->write_algorithm);
LOG_WARNING("no large enough working area available, can't do block memory writes");
return ERROR_TARGET_RESOURCE_NOT_AVAILABLE;
}
}
armv4_5_info.common_magic = ARMV4_5_COMMON_MAGIC;
armv4_5_info.core_mode = ARMV4_5_MODE_SVC;
armv4_5_info.core_state = ARMV4_5_STATE_ARM;
init_reg_param(&reg_params[0], "r0", 32, PARAM_OUT);
init_reg_param(&reg_params[1], "r1", 32, PARAM_OUT);
init_reg_param(&reg_params[2], "r2", 32, PARAM_OUT);
init_reg_param(&reg_params[3], "r3", 32, PARAM_IN);
init_reg_param(&reg_params[4], "r4", 32, PARAM_OUT);
while (count > 0)
{
uint32_t thisrun_count = (count > buffer_size) ? buffer_size : count;
retval=target_write_buffer(target, source->address, thisrun_count, buffer);
if (retval!=ERROR_OK)
{
break;
}
buf_set_u32(reg_params[0].value, 0, 32, source->address);
buf_set_u32(reg_params[1].value, 0, 32, thisrun_count/2);
buf_set_u32(reg_params[2].value, 0, 32, address);
buf_set_u32(reg_params[4].value, 0, 32, 0xFFFFF800);
if ((retval = target_run_algorithm(target, 0, NULL, 5,
reg_params, aduc702x_info->write_algorithm->address,
aduc702x_info->write_algorithm->address + sizeof(aduc702x_flash_write_code) - 4,
10000, &armv4_5_info)) != ERROR_OK)
{
LOG_ERROR("error executing aduc702x flash write algorithm");
break;
}
if ((buf_get_u32(reg_params[3].value, 0, 32) & 1) != 1)
{
/* FIX!!!! what does this mean??? replace w/sensible error message */
LOG_ERROR("aduc702x detected error writing flash");
retval = ERROR_FAIL;
break;
}
buffer += thisrun_count;
address += thisrun_count;
count -= thisrun_count;
}
target_free_working_area(target, source);
target_free_working_area(target, aduc702x_info->write_algorithm);
destroy_reg_param(&reg_params[0]);
destroy_reg_param(&reg_params[1]);
destroy_reg_param(&reg_params[2]);
destroy_reg_param(&reg_params[3]);
destroy_reg_param(&reg_params[4]);
return retval;
}
/* All-JTAG, single-access method. Very slow. Used only if there is no
* working area available. */
static int aduc702x_write_single(struct flash_bank *bank, uint8_t *buffer, uint32_t offset, uint32_t count)
{
uint32_t x;
uint8_t b;
struct target *target = bank->target;
aduc702x_set_write_enable(target, 1);
for (x = 0; x < count; x += 2) {
// FEEADR = address
target_write_u16(target, ADUC702x_FLASH + ADUC702x_FLASH_FEEADR, offset + x);
// set up data
if ((x + 1) == count)
{
// last byte
target_read_u8(target, offset + x + 1, &b);
}
else
b = buffer[x + 1];
target_write_u16(target, ADUC702x_FLASH + ADUC702x_FLASH_FEEDAT, buffer[x] | (b << 8));
// do single-write command
target_write_u8(target, ADUC702x_FLASH + ADUC702x_FLASH_FEECON, 0x02);
if (aduc702x_check_flash_completion(target, 1) != ERROR_OK)
{
LOG_ERROR("single write failed for address 0x%08lX\n", (unsigned long)(offset + x));
aduc702x_set_write_enable(target, 0);
return ERROR_FLASH_OPERATION_FAILED;
}
}
LOG_DEBUG("wrote %d bytes at address 0x%08lX\n", (int)count, (unsigned long)(offset + x));
aduc702x_set_write_enable(target, 0);
return ERROR_OK;
}
int aduc702x_write(struct flash_bank *bank, uint8_t *buffer, uint32_t offset, uint32_t count)
{
int retval;
/* try using a block write */
if ((retval = aduc702x_write_block(bank, buffer, offset, count)) != ERROR_OK)
{
if (retval == ERROR_TARGET_RESOURCE_NOT_AVAILABLE)
{
/* if block write failed (no sufficient working area),
* use normal (slow) JTAG method */
LOG_WARNING("couldn't use block writes, falling back to single memory accesses");
if ((retval = aduc702x_write_single(bank, buffer, offset, count)) != ERROR_OK)
{
LOG_ERROR("slow write failed");
return ERROR_FLASH_OPERATION_FAILED;
}
}
}
return retval;
}
static int aduc702x_probe(struct flash_bank *bank)
{
return ERROR_OK;
}
static int aduc702x_info(struct flash_bank *bank, char *buf, int buf_size)
{
snprintf(buf, buf_size, "aduc702x flash driver info");
return ERROR_OK;
}
/* sets FEEMOD bit 3
* enable = 1 enables writes & erases, 0 disables them */
static int aduc702x_set_write_enable(struct target *target, int enable)
{
// don't bother to preserve int enable bit here
target_write_u16(target, ADUC702x_FLASH + ADUC702x_FLASH_FEEMOD, enable ? 8 : 0);
return ERROR_OK;
}
/* wait up to timeout_ms for controller to not be busy,
* then check whether the command passed or failed.
*
* this function sleeps 1ms between checks (after the first one),
* so in some cases may slow things down without a usleep after the first read */
static int aduc702x_check_flash_completion(struct target* target, unsigned int timeout_ms)
{
uint8_t v = 4;
long long endtime = timeval_ms() + timeout_ms;
while (1) {
target_read_u8(target, ADUC702x_FLASH + ADUC702x_FLASH_FEESTA, &v);
if ((v & 4) == 0) break;
alive_sleep(1);
if (timeval_ms() >= endtime) break;
}
if (v & 2) return ERROR_FAIL;
// if a command is ignored, both the success and fail bits may be 0
else if ((v & 3) == 0) return ERROR_FAIL;
else return ERROR_OK;
}
struct flash_driver aduc702x_flash = {
.name = "aduc702x",
.flash_bank_command = &aduc702x_flash_bank_command,
.erase = &aduc702x_erase,
.protect = &aduc702x_protect,
.write = &aduc702x_write,
.probe = &aduc702x_probe,
.auto_probe = &aduc702x_probe,
.erase_check = &default_flash_blank_check,
.protect_check = &aduc702x_protect_check,
.info = &aduc702x_info
};
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