/***************************************************************************
* Copyright (C) 2009 by Duane Ellis *
* openocd@duaneellis.com *
* *
* Copyright (C) 2010 by Olaf Lüke (at91sam3s* support) *
* olaf@uni-paderborn.de *
* *
* Copyright (C) 2011 by Olivier Schonken, Jim Norris *
* (at91sam3x* & at91sam4 support)* *
* *
* Copyright (C) 2015 Morgan Quigley *
* (atsamv, atsams, and atsame support) *
* *
* 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, see . *
***************************************************************************/
/* Some of the the lower level code was based on code supplied by
* ATMEL under this copyright. */
/* BEGIN ATMEL COPYRIGHT */
/* ----------------------------------------------------------------------------
* ATMEL Microcontroller Software Support
* ----------------------------------------------------------------------------
* Copyright (c) 2009, Atmel Corporation
*
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* - Redistributions of source code must retain the above copyright notice,
* this list of conditions and the disclaimer below.
*
* Atmel's name may not be used to endorse or promote products derived from
* this software without specific prior written permission.
*
* DISCLAIMER: THIS SOFTWARE IS PROVIDED BY ATMEL "AS IS" AND ANY EXPRESS OR
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT ARE
* DISCLAIMED. IN NO EVENT SHALL ATMEL BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA,
* OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
* LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
* NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE,
* EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
* ----------------------------------------------------------------------------
*/
/* END ATMEL COPYRIGHT */
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include "imp.h"
#include
#define REG_NAME_WIDTH (12)
#define SAMV_EFC_FCMD_GETD (0x0) /* (EFC) Get Flash Descriptor */
#define SAMV_EFC_FCMD_WP (0x1) /* (EFC) Write Page */
#define SAMV_EFC_FCMD_WPL (0x2) /* (EFC) Write Page and Lock */
#define SAMV_EFC_FCMD_EWP (0x3) /* (EFC) Erase Page and Write Page */
#define SAMV_EFC_FCMD_EWPL (0x4) /* (EFC) Erase Page, Write Page then Lock*/
#define SAMV_EFC_FCMD_EA (0x5) /* (EFC) Erase All */
#define SAMV_EFC_FCMD_EPA (0x7) /* (EFC) Erase pages */
#define SAMV_EFC_FCMD_SLB (0x8) /* (EFC) Set Lock Bit */
#define SAMV_EFC_FCMD_CLB (0x9) /* (EFC) Clear Lock Bit */
#define SAMV_EFC_FCMD_GLB (0xA) /* (EFC) Get Lock Bit */
#define SAMV_EFC_FCMD_SFB (0xB) /* (EFC) Set Fuse Bit */
#define SAMV_EFC_FCMD_CFB (0xC) /* (EFC) Clear Fuse Bit */
#define SAMV_EFC_FCMD_GFB (0xD) /* (EFC) Get Fuse Bit */
#define OFFSET_EFC_FMR 0
#define OFFSET_EFC_FCR 4
#define OFFSET_EFC_FSR 8
#define OFFSET_EFC_FRR 12
#define SAMV_CHIPID_CIDR (0x400E0940)
#define SAMV_NUM_GPNVM_BITS 9
#define SAMV_CONTROLLER_ADDR (0x400e0c00)
#define SAMV_SECTOR_SIZE 16384
#define SAMV_PAGE_SIZE 512
#define SAMV_FLASH_BASE 0x00400000
extern struct flash_driver atsamv_flash;
struct samv_flash_bank {
int probed;
unsigned size_bytes;
unsigned gpnvm[SAMV_NUM_GPNVM_BITS];
};
/* The actual sector size of the SAMV7 flash memory is 128K bytes.
* 16 sectors for a 2048KB device. The lock regions are 16KB per lock
* region, with a 2048KB device having 128 lock regions.
* For the best results, num_sectors is thus set to the number of lock
* regions, and the sector_size set to the lock region size. Page
* erases are used to erase 16KB sections when programming */
static int samv_efc_get_status(struct target *target, uint32_t *v)
{
int r = target_read_u32(target, SAMV_CONTROLLER_ADDR + OFFSET_EFC_FSR, v);
return r;
}
static int samv_efc_get_result(struct target *target, uint32_t *v)
{
uint32_t rv;
int r = target_read_u32(target, SAMV_CONTROLLER_ADDR + OFFSET_EFC_FRR, &rv);
if (v)
*v = rv;
return r;
}
static int samv_efc_start_command(struct target *target,
unsigned command, unsigned argument)
{
uint32_t v;
samv_efc_get_status(target, &v);
if (!(v & 1)) {
LOG_ERROR("flash controller is not ready");
return ERROR_FAIL;
}
v = (0x5A << 24) | (argument << 8) | command;
LOG_DEBUG("starting flash command: 0x%08x", (unsigned int)(v));
int r = target_write_u32(target, SAMV_CONTROLLER_ADDR + OFFSET_EFC_FCR, v);
if (r != ERROR_OK)
LOG_DEBUG("write failed");
return r;
}
static int samv_efc_perform_command(struct target *target,
unsigned command, unsigned argument, uint32_t *status)
{
int r;
uint32_t v;
int64_t ms_now, ms_end;
if (status)
*status = 0;
r = samv_efc_start_command(target, command, argument);
if (r != ERROR_OK)
return r;
ms_end = 10000 + timeval_ms();
do {
r = samv_efc_get_status(target, &v);
if (r != ERROR_OK)
return r;
ms_now = timeval_ms();
if (ms_now > ms_end) {
/* error */
LOG_ERROR("Command timeout");
return ERROR_FAIL;
}
} while ((v & 1) == 0);
/* if requested, copy the flash controller error bits back to the caller */
if (status)
*status = (v & 0x6);
return ERROR_OK;
}
static int samv_erase_pages(struct target *target,
int first_page, int num_pages, uint32_t *status)
{
uint8_t erase_pages;
switch (num_pages) {
case 4:
erase_pages = 0x00;
break;
case 8:
erase_pages = 0x01;
break;
case 16:
erase_pages = 0x02;
break;
case 32:
erase_pages = 0x03;
break;
default:
erase_pages = 0x00;
break;
}
/* SAMV_EFC_FCMD_EPA
* According to the datasheet FARG[15:2] defines the page from which
* the erase will start.This page must be modulo 4, 8, 16 or 32
* according to the number of pages to erase. FARG[1:0] defines the
* number of pages to be erased. Previously (firstpage << 2) was used
* to conform to this, seems it should not be shifted...
*/
return samv_efc_perform_command(target, SAMV_EFC_FCMD_EPA,
first_page | erase_pages, status);
}
static int samv_get_gpnvm(struct target *target, unsigned gpnvm, unsigned *out)
{
uint32_t v;
int r;
if (gpnvm >= SAMV_NUM_GPNVM_BITS) {
LOG_ERROR("invalid gpnvm %d, max: %d", gpnvm, SAMV_NUM_GPNVM_BITS);
return ERROR_FAIL;
}
r = samv_efc_perform_command(target, SAMV_EFC_FCMD_GFB, 0, NULL);
if (r != ERROR_OK) {
LOG_ERROR("samv_get_gpnvm failed");
return r;
}
r = samv_efc_get_result(target, &v);
if (out)
*out = (v >> gpnvm) & 1;
return r;
}
static int samv_clear_gpnvm(struct target *target, unsigned gpnvm)
{
int r;
unsigned v;
if (gpnvm >= SAMV_NUM_GPNVM_BITS) {
LOG_ERROR("invalid gpnvm %d, max: %d", gpnvm, SAMV_NUM_GPNVM_BITS);
return ERROR_FAIL;
}
r = samv_get_gpnvm(target, gpnvm, &v);
if (r != ERROR_OK) {
LOG_DEBUG("get gpnvm failed: %d", r);
return r;
}
r = samv_efc_perform_command(target, SAMV_EFC_FCMD_CFB, gpnvm, NULL);
LOG_DEBUG("clear gpnvm result: %d", r);
return r;
}
static int samv_set_gpnvm(struct target *target, unsigned gpnvm)
{
int r;
unsigned v;
if (gpnvm >= SAMV_NUM_GPNVM_BITS) {
LOG_ERROR("invalid gpnvm %d, max: %d", gpnvm, SAMV_NUM_GPNVM_BITS);
return ERROR_FAIL;
}
r = samv_get_gpnvm(target, gpnvm, &v);
if (r != ERROR_OK)
return r;
if (v) {
r = ERROR_OK; /* the gpnvm bit is already set */
} else {
/* we need to set it */
r = samv_efc_perform_command(target, SAMV_EFC_FCMD_SFB, gpnvm, NULL);
}
return r;
}
static int samv_flash_unlock(struct target *target,
unsigned start_sector, unsigned end_sector)
{
int r;
uint32_t status;
uint32_t pg;
uint32_t pages_per_sector;
/* todo: look into this... i think this should be done on lock regions */
pages_per_sector = SAMV_SECTOR_SIZE / SAMV_PAGE_SIZE;
while (start_sector <= end_sector) {
pg = start_sector * pages_per_sector;
r = samv_efc_perform_command(target, SAMV_EFC_FCMD_CLB, pg, &status);
if (r != ERROR_OK)
return r;
start_sector++;
}
return ERROR_OK;
}
static int samv_flash_lock(struct target *target,
unsigned start_sector, unsigned end_sector)
{
uint32_t status;
uint32_t pg;
uint32_t pages_per_sector;
int r;
/* todo: look into this... i think this should be done on lock regions */
pages_per_sector = SAMV_SECTOR_SIZE / SAMV_PAGE_SIZE;
while (start_sector <= end_sector) {
pg = start_sector * pages_per_sector;
r = samv_efc_perform_command(target, SAMV_EFC_FCMD_SLB, pg, &status);
if (r != ERROR_OK)
return r;
start_sector++;
}
return ERROR_OK;
}
static int samv_protect_check(struct flash_bank *bank)
{
int r;
uint32_t v[4] = {0};
r = samv_efc_perform_command(bank->target, SAMV_EFC_FCMD_GLB, 0, NULL);
if (r == ERROR_OK) {
samv_efc_get_result(bank->target, &v[0]);
samv_efc_get_result(bank->target, &v[1]);
samv_efc_get_result(bank->target, &v[2]);
r = samv_efc_get_result(bank->target, &v[3]);
}
if (r != ERROR_OK)
return r;
for (int x = 0; x < bank->num_sectors; x++)
bank->sectors[x].is_protected = (!!(v[x >> 5] & (1 << (x % 32))));
return ERROR_OK;
}
FLASH_BANK_COMMAND_HANDLER(samv_flash_bank_command)
{
LOG_INFO("flash bank command");
struct samv_flash_bank *samv_info;
samv_info = calloc(1, sizeof(struct samv_flash_bank));
bank->driver_priv = samv_info;
return ERROR_OK;
}
static int samv_get_device_id(struct flash_bank *bank, uint32_t *device_id)
{
return target_read_u32(bank->target, SAMV_CHIPID_CIDR, device_id);
}
static int samv_probe(struct flash_bank *bank)
{
uint32_t device_id;
int r = samv_get_device_id(bank, &device_id);
if (r != ERROR_OK)
return r;
LOG_INFO("device id = 0x%08" PRIx32 "", device_id);
uint8_t eproc = (device_id >> 5) & 0x7;
if (eproc != 0) {
LOG_ERROR("unexpected eproc code: %d was expecting 0 (Cortex-M7)", eproc);
return ERROR_FAIL;
}
uint8_t nvm_size_code = (device_id >> 8) & 0xf;
switch (nvm_size_code) {
case 10:
bank->size = 512 * 1024;
break;
case 12:
bank->size = 1024 * 1024;
break;
case 14:
bank->size = 2048 * 1024;
break;
default:
LOG_ERROR("unrecognized flash size code: %d", nvm_size_code);
return ERROR_FAIL;
break;
}
struct samv_flash_bank *samv_info = bank->driver_priv;
samv_info->size_bytes = bank->size;
samv_info->probed = 1;
bank->base = SAMV_FLASH_BASE;
bank->num_sectors = bank->size / SAMV_SECTOR_SIZE;
bank->sectors = calloc(bank->num_sectors, sizeof(struct flash_sector));
for (int s = 0; s < (int)bank->num_sectors; s++) {
bank->sectors[s].size = SAMV_SECTOR_SIZE;
bank->sectors[s].offset = s * SAMV_SECTOR_SIZE;
bank->sectors[s].is_erased = -1;
bank->sectors[s].is_protected = -1;
}
r = samv_protect_check(bank);
if (r != ERROR_OK)
return r;
return ERROR_OK;
}
static int samv_auto_probe(struct flash_bank *bank)
{
struct samv_flash_bank *samv_info = bank->driver_priv;
if (samv_info->probed)
return ERROR_OK;
return samv_probe(bank);
}
static int samv_erase(struct flash_bank *bank, int first, int last)
{
const int page_count = 32; /* 32 pages equals 16 KB lock region */
if (bank->target->state != TARGET_HALTED) {
LOG_ERROR("Target not halted");
return ERROR_TARGET_NOT_HALTED;
}
int r = samv_auto_probe(bank);
if (r != ERROR_OK)
return r;
/* easy case: we've been requested to erase the entire flash */
if ((first == 0) && ((last + 1) == (int)(bank->num_sectors)))
return samv_efc_perform_command(bank->target, SAMV_EFC_FCMD_EA, 0, NULL);
LOG_INFO("erasing lock regions %d-%d...", first, last);
for (int i = first; i <= last; i++) {
uint32_t status;
r = samv_erase_pages(bank->target, (i * page_count), page_count, &status);
LOG_INFO("erasing lock region %d", i);
if (r != ERROR_OK)
LOG_ERROR("error performing erase page @ lock region number %d",
(unsigned int)(i));
if (status & (1 << 2)) {
LOG_ERROR("lock region %d is locked", (unsigned int)(i));
return ERROR_FAIL;
}
if (status & (1 << 1)) {
LOG_ERROR("flash command error @lock region %d", (unsigned int)(i));
return ERROR_FAIL;
}
}
return ERROR_OK;
}
static int samv_protect(struct flash_bank *bank, int set, int first, int last)
{
if (bank->target->state != TARGET_HALTED) {
LOG_ERROR("Target not halted");
return ERROR_TARGET_NOT_HALTED;
}
int r;
if (set)
r = samv_flash_lock(bank->target, (unsigned)(first), (unsigned)(last));
else
r = samv_flash_unlock(bank->target, (unsigned)(first), (unsigned)(last));
return r;
}
static int samv_page_read(struct target *target,
unsigned page_num, uint8_t *buf)
{
uint32_t addr = SAMV_FLASH_BASE + page_num * SAMV_PAGE_SIZE;
int r = target_read_memory(target, addr, 4, SAMV_PAGE_SIZE / 4, buf);
if (r != ERROR_OK)
LOG_ERROR("flash program failed to read page @ 0x%08x",
(unsigned int)(addr));
return r;
}
static int samv_page_write(struct target *target,
unsigned pagenum, const uint8_t *buf)
{
uint32_t status;
const uint32_t addr = SAMV_FLASH_BASE + pagenum * SAMV_PAGE_SIZE;
int r;
LOG_DEBUG("write page %u at address 0x%08x", pagenum, (unsigned int)addr);
r = target_write_memory(target, addr, 4, SAMV_PAGE_SIZE / 4, buf);
if (r != ERROR_OK) {
LOG_ERROR("failed to buffer page at 0x%08x", (unsigned int)addr);
return r;
}
r = samv_efc_perform_command(target, SAMV_EFC_FCMD_WP, pagenum, &status);
if (r != ERROR_OK)
LOG_ERROR("error performing write page at 0x%08x", (unsigned int)addr);
if (status & (1 << 2)) {
LOG_ERROR("page at 0x%08x is locked", (unsigned int)addr);
return ERROR_FAIL;
}
if (status & (1 << 1)) {
LOG_ERROR("flash command error at 0x%08x", (unsigned int)addr);
return ERROR_FAIL;
}
return ERROR_OK;
}
static int samv_write(struct flash_bank *bank, const uint8_t *buffer,
uint32_t offset, uint32_t count)
{
if (bank->target->state != TARGET_HALTED) {
LOG_ERROR("target not halted");
return ERROR_TARGET_NOT_HALTED;
}
if (count == 0)
return ERROR_OK;
if ((offset + count) > bank->size) {
LOG_ERROR("flash write error - past end of bank");
LOG_ERROR(" offset: 0x%08x, count 0x%08x, bank end: 0x%08x",
(unsigned int)(offset),
(unsigned int)(count),
(unsigned int)(bank->size));
return ERROR_FAIL;
}
uint8_t pagebuffer[SAMV_PAGE_SIZE] = {0};
uint32_t page_cur = offset / SAMV_PAGE_SIZE;
uint32_t page_end = (offset + count - 1) / SAMV_PAGE_SIZE;
LOG_DEBUG("offset: 0x%08x, count: 0x%08x",
(unsigned int)(offset), (unsigned int)(count));
LOG_DEBUG("page start: %d, page end: %d", (int)(page_cur), (int)(page_end));
/* Special case: all one page */
/* Otherwise: */
/* (1) non-aligned start */
/* (2) body pages */
/* (3) non-aligned end. */
int r;
uint32_t page_offset;
/* handle special case - all one page. */
if (page_cur == page_end) {
LOG_DEBUG("special case, all in one page");
r = samv_page_read(bank->target, page_cur, pagebuffer);
if (r != ERROR_OK)
return r;
page_offset = offset & (SAMV_PAGE_SIZE-1);
memcpy(pagebuffer + page_offset, buffer, count);
r = samv_page_write(bank->target, page_cur, pagebuffer);
if (r != ERROR_OK)
return r;
return ERROR_OK;
}
/* step 1) handle the non-aligned starting address */
page_offset = offset & (SAMV_PAGE_SIZE - 1);
if (page_offset) {
LOG_DEBUG("non-aligned start");
/* read the partial page */
r = samv_page_read(bank->target, page_cur, pagebuffer);
if (r != ERROR_OK)
return r;
/* over-write with new data */
uint32_t n = SAMV_PAGE_SIZE - page_offset;
memcpy(pagebuffer + page_offset, buffer, n);
r = samv_page_write(bank->target, page_cur, pagebuffer);
if (r != ERROR_OK)
return r;
count -= n;
offset += n;
buffer += n;
page_cur++;
}
/* By checking that offset is correct here, we also fix a clang warning */
assert(offset % SAMV_PAGE_SIZE == 0);
/* step 2) handle the full pages */
LOG_DEBUG("full page loop: cur=%d, end=%d, count = 0x%08x",
(int)page_cur, (int)page_end, (unsigned int)(count));
while ((page_cur < page_end) && (count >= SAMV_PAGE_SIZE)) {
r = samv_page_write(bank->target, page_cur, buffer);
if (r != ERROR_OK)
return r;
count -= SAMV_PAGE_SIZE;
buffer += SAMV_PAGE_SIZE;
page_cur += 1;
}
/* step 3) write final page, if it's partial (otherwise it's already done) */
if (count) {
LOG_DEBUG("final partial page, count = 0x%08x", (unsigned int)(count));
/* we have a partial page */
r = samv_page_read(bank->target, page_cur, pagebuffer);
if (r != ERROR_OK)
return r;
memcpy(pagebuffer, buffer, count); /* data goes at start of page */
r = samv_page_write(bank->target, page_cur, pagebuffer);
if (r != ERROR_OK)
return r;
}
return ERROR_OK;
}
static int samv_get_info(struct flash_bank *bank, char *buf, int buf_size)
{
struct samv_flash_bank *samv_info = bank->driver_priv;
if (!samv_info->probed) {
int r = samv_probe(bank);
if (ERROR_OK != r)
return r;
}
snprintf(buf, buf_size, "Cortex-M7 detected with %d kB flash",
bank->size / 1024);
return ERROR_OK;
}
COMMAND_HANDLER(samv_handle_gpnvm_command)
{
struct flash_bank *bank = get_flash_bank_by_num_noprobe(0);
if (!bank)
return ERROR_FAIL;
struct samv_flash_bank *samv_info = bank->driver_priv;
struct target *target = bank->target;
if (target->state != TARGET_HALTED) {
LOG_ERROR("target not halted");
return ERROR_TARGET_NOT_HALTED;
}
int r;
if (!samv_info->probed) {
r = samv_auto_probe(bank);
if (r != ERROR_OK)
return r;
}
int who = 0;
switch (CMD_ARGC) {
case 0:
goto showall;
break;
case 1:
who = -1;
break;
case 2:
if (!strcmp(CMD_ARGV[0], "show") && !strcmp(CMD_ARGV[1], "all"))
who = -1;
else {
uint32_t v32;
COMMAND_PARSE_NUMBER(u32, CMD_ARGV[1], v32);
who = v32;
}
break;
default:
return ERROR_COMMAND_SYNTAX_ERROR;
break;
}
uint32_t v;
if (!strcmp("show", CMD_ARGV[0])) {
if (who == -1) {
showall:
r = ERROR_OK;
for (int x = 0; x < SAMV_NUM_GPNVM_BITS; x++) {
r = samv_get_gpnvm(target, x, &v);
if (r != ERROR_OK)
break;
command_print(CMD_CTX, "samv-gpnvm%u: %u", x, v);
}
return r;
}
if ((who >= 0) && (((unsigned)who) < SAMV_NUM_GPNVM_BITS)) {
r = samv_get_gpnvm(target, who, &v);
command_print(CMD_CTX, "samv-gpnvm%u: %u", who, v);
return r;
} else {
command_print(CMD_CTX, "invalid gpnvm: %u", who);
return ERROR_COMMAND_SYNTAX_ERROR;
}
}
if (who == -1) {
command_print(CMD_CTX, "missing gpnvm number");
return ERROR_COMMAND_SYNTAX_ERROR;
}
if (!strcmp("set", CMD_ARGV[0]))
r = samv_set_gpnvm(target, who);
else if (!strcmp("clr", CMD_ARGV[0]) || !strcmp("clear", CMD_ARGV[0]))
r = samv_clear_gpnvm(target, who);
else {
command_print(CMD_CTX, "unknown command: %s", CMD_ARGV[0]);
r = ERROR_COMMAND_SYNTAX_ERROR;
}
return r;
}
static const struct command_registration atsamv_exec_command_handlers[] = {
{
.name = "gpnvm",
.handler = samv_handle_gpnvm_command,
.mode = COMMAND_EXEC,
.usage = "[('clr'|'set'|'show') bitnum]",
.help = "Without arguments, shows all bits in the gpnvm "
"register. Otherwise, clears, sets, or shows one "
"General Purpose Non-Volatile Memory (gpnvm) bit.",
},
COMMAND_REGISTRATION_DONE
};
static const struct command_registration atsamv_command_handlers[] = {
{
.name = "atsamv",
.mode = COMMAND_ANY,
.help = "atsamv flash command group",
.usage = "",
.chain = atsamv_exec_command_handlers,
},
COMMAND_REGISTRATION_DONE
};
struct flash_driver atsamv_flash = {
.name = "atsamv",
.commands = atsamv_command_handlers,
.flash_bank_command = samv_flash_bank_command,
.erase = samv_erase,
.protect = samv_protect,
.write = samv_write,
.read = default_flash_read,
.probe = samv_probe,
.auto_probe = samv_auto_probe,
.erase_check = default_flash_blank_check,
.protect_check = samv_protect_check,
.info = samv_get_info,
.free_driver_priv = default_flash_free_driver_priv,
};