--- /dev/null
+/***************************************************************************
+ * 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. *
+ * *
+ ***************************************************************************/
+
+/* 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 <helper/time_support.h>
+
+#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;
+ long long 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 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,
+};
projects / openocd / commitdiff