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-rw-r--r--src/flash/nor/Makefile.am1
-rw-r--r--src/flash/nor/at91sam4l.c668
-rw-r--r--src/flash/nor/drivers.c2
-rw-r--r--tcl/target/at91sam4lXX.cfg4
4 files changed, 674 insertions, 1 deletions
diff --git a/src/flash/nor/Makefile.am b/src/flash/nor/Makefile.am
index 1082b22c..48e6ab22 100644
--- a/src/flash/nor/Makefile.am
+++ b/src/flash/nor/Makefile.am
@@ -10,6 +10,7 @@ libocdflashnor_la_SOURCES = \
NOR_DRIVERS = \
aduc702x.c \
at91sam4.c \
+ at91sam4l.c \
at91sam3.c \
at91sam7.c \
avrf.c \
diff --git a/src/flash/nor/at91sam4l.c b/src/flash/nor/at91sam4l.c
new file mode 100644
index 00000000..bb841852
--- /dev/null
+++ b/src/flash/nor/at91sam4l.c
@@ -0,0 +1,668 @@
+/***************************************************************************
+ * Copyright (C) 2013 by Andrey Yurovsky *
+ * Andrey Yurovsky <yurovsky@gmail.com> *
+ * *
+ * 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., *
+ * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. *
+ ***************************************************************************/
+
+#ifdef HAVE_CONFIG_H
+#include "config.h"
+#endif
+
+#include "imp.h"
+
+/* At this time, the SAM4L Flash is available in these capacities:
+ * ATSAM4Lx4xx: 256KB (512 pages)
+ * ATSAM4Lx2xx: 128KB (256 pages)
+ * ATSAM4Lx8xx: 512KB (1024 pages)
+ */
+
+/* There are 16 lockable regions regardless of overall capacity. The number
+ * of pages per sector is therefore dependant on capacity. */
+#define SAM4L_NUM_SECTORS 16
+
+/* Locations in memory map */
+#define SAM4L_FLASH 0x00000000 /* Flash region */
+#define SAM4L_FLASH_USER 0x00800000 /* Flash user page region */
+#define SAM4L_FLASHCALW 0x400A0000 /* Flash controller */
+#define SAM4L_CHIPID 0x400E0740 /* Chip Identification */
+
+/* Offsets from SAM4L_FLASHCALW */
+#define SAM4L_FCR 0x00 /* Flash Control Register (RW) */
+#define SAM4L_FCMD 0x04 /* Flash Command Register (RW) */
+#define SAM4L_FSR 0x08 /* Flash Status Register (RO) */
+#define SAM4L_FPR 0x0C /* Flash Parameter Register (RO) */
+#define SAM4L_FVR 0x10 /* Flash Version Register (RO) */
+#define SAM4L_FGPFRHI 0x14 /* Flash General Purpose Register High (RO) */
+#define SAM4L_FGPFRLO 0x18 /* Flash General Purpose Register Low (RO) */
+
+/* Offsets from SAM4L_CHIPID */
+#define SAM4L_CIDR 0x00 /* Chip ID Register (RO) */
+#define SAM4L_EXID 0x04 /* Chip ID Extension Register (RO) */
+
+/* Flash commands (for SAM4L_FCMD), see Table 14-5 */
+#define SAM4L_FCMD_NOP 0 /* No Operation */
+#define SAM4L_FCMD_WP 1 /* Write Page */
+#define SAM4L_FCMD_EP 2 /* Erase Page */
+#define SAM4L_FCMD_CPB 3 /* Clear Page Buffer */
+#define SAM4L_FCMD_LP 4 /* Lock region containing given page */
+#define SAM4L_FCMD_UP 5 /* Unlock region containing given page */
+#define SAM4L_FCMD_EA 6 /* Erase All */
+#define SAM4L_FCMD_WGPB 7 /* Write general-purpose fuse bit */
+#define SAM4L_FCMD_EGPB 8 /* Erase general-purpose fuse bit */
+#define SAM4L_FCMD_SSB 9 /* Set security fuses */
+#define SAM4L_FCMD_PGPFB 10 /* Program general-purpose fuse byte */
+#define SAM4L_FCMD_EAGPF 11 /* Erase all general-purpose fuse bits */
+#define SAM4L_FCMD_QPR 12 /* Quick page read */
+#define SAM4L_FCMD_WUP 13 /* Write user page */
+#define SAM4L_FCMD_EUP 14 /* Erase user page */
+#define SAM4L_FCMD_QPRUP 15 /* Quick page read (user page) */
+#define SAM4L_FCMD_HSEN 16 /* High speed mode enable */
+#define SAM4L_FCMD_HSDIS 17 /* High speed mode disable */
+
+#define SAM4L_FMCD_CMDKEY 0xA5UL /* 'key' to issue commands, see 14.10.2 */
+
+struct sam4l_chip_info {
+ uint32_t id;
+ uint32_t exid;
+ const char *name;
+};
+
+/* These are taken from Table 9-1 in 42023E-SAM-07/2013 */
+static struct sam4l_chip_info sam4l_known_chips[] = {
+ { 0xAB0B0AE0, 0x1400000F, "ATSAM4LC8C" },
+ { 0xAB0A09E0, 0x0400000F, "ATSAM4LC4C" },
+ { 0xAB0A07E0, 0x0400000F, "ATSAM4LC2C" },
+ { 0xAB0B0AE0, 0x1300000F, "ATSAM4LC8B" },
+ { 0xAB0A09E0, 0x0300000F, "ATSAM4LC4B" },
+ { 0xAB0A07E0, 0x0300000F, "ATSAM4LC2B" },
+ { 0xAB0B0AE0, 0x1200000F, "ATSAM4LC8A" },
+ { 0xAB0A09E0, 0x0200000F, "ATSAM4LC4A" },
+ { 0xAB0A07E0, 0x0200000F, "ATSAM4LC2A" },
+ { 0xAB0B0AE0, 0x14000002, "ATSAM4LS8C" },
+ { 0xAB0A09E0, 0x04000002, "ATSAM4LS4C" },
+ { 0xAB0A07E0, 0x04000002, "ATSAM4LS2C" },
+ { 0xAB0B0AE0, 0x13000002, "ATSAM4LS8B" },
+ { 0xAB0A09E0, 0x03000002, "ATSAM4LS4B" },
+ { 0xAB0A07E0, 0x03000002, "ATSAM4LS2B" },
+ { 0xAB0B0AE0, 0x12000002, "ATSAM4LS8A" },
+ { 0xAB0A09E0, 0x02000002, "ATSAM4LS4A" },
+ { 0xAB0A07E0, 0x02000002, "ATSAM4LS2A" },
+};
+
+/* Meaning of SRAMSIZ field in CHIPID, see 9.3.1 in 42023E-SAM-07/2013 */
+static uint16_t sam4l_ram_sizes[16] = { 48, 1, 2, 6, 24, 4, 80, 160, 8, 16, 32, 64, 128, 256, 96, 512 };
+
+/* Meaning of PSZ field in FPR, see 14.10.4 in 42023E-SAM-07/2013 */
+static const uint16_t sam4l_page_sizes[8] = { 32, 64, 128, 256, 512, 1024, 2048, 4096 };
+
+struct sam4l_info {
+ struct sam4l_chip_info *details;
+
+ uint32_t flash_kb;
+ uint32_t ram_kb;
+ uint32_t page_size;
+ int num_pages;
+ int sector_size;
+ int pages_per_sector;
+
+ bool probed;
+ struct target *target;
+ struct sam4l_info *next;
+};
+
+static struct sam4l_info *sam4l_chips;
+
+static int sam4l_flash_wait_until_ready(struct target *target)
+{
+ volatile unsigned int t = 0;
+ uint32_t st;
+ int res;
+
+ /* Poll the status register until the FRDY bit is set */
+ do {
+ res = target_read_u32(target, SAM4L_FLASHCALW + SAM4L_FSR, &st);
+ } while (res == ERROR_OK && !(st & (1<<0)) && ++t < 10);
+
+ return res;
+}
+
+static int sam4l_flash_check_error(struct target *target, uint32_t *err)
+{
+ uint32_t st;
+ int res;
+
+ res = target_read_u32(target, SAM4L_FLASHCALW + SAM4L_FSR, &st);
+
+ if (res == ERROR_OK)
+ *err = st & ((1<<3) | (1<<2)); /* grab PROGE and LOCKE bits */
+
+ return res;
+}
+
+static int sam4l_flash_command(struct target *target, uint8_t cmd, int page)
+{
+ int res;
+ uint32_t fcmd;
+ uint32_t err;
+
+ res = sam4l_flash_wait_until_ready(target);
+ if (res != ERROR_OK)
+ return res;
+
+ if (page >= 0) {
+ /* Set the page number. For some commands, the page number is just an
+ * argument (ex: fuse bit number). */
+ fcmd = (SAM4L_FMCD_CMDKEY << 24) | ((page & 0xFFFF) << 8) | (cmd & 0x3F);
+ } else {
+ /* Reuse the page number that was read from the flash command register. */
+ res = target_read_u32(target, SAM4L_FLASHCALW + SAM4L_FCMD, &fcmd);
+ if (res != ERROR_OK)
+ return res;
+
+ fcmd &= ~0x3F; /* clear out the command code */
+ fcmd |= (SAM4L_FMCD_CMDKEY << 24) | (cmd & 0x3F);
+ }
+
+ /* Send the command */
+ res = target_write_u32(target, SAM4L_FLASHCALW + SAM4L_FCMD, fcmd);
+ if (res != ERROR_OK)
+ return res;
+
+ res = sam4l_flash_check_error(target, &err);
+ if (res != ERROR_OK)
+ return res;
+
+ if (err != 0)
+ LOG_ERROR("%s got error status 0x%08" PRIx32, __func__, err);
+
+ res = sam4l_flash_wait_until_ready(target);
+
+ return res;
+}
+
+FLASH_BANK_COMMAND_HANDLER(sam4l_flash_bank_command)
+{
+ struct sam4l_info *chip = sam4l_chips;
+
+ while (chip) {
+ if (chip->target == bank->target)
+ break;
+ chip = chip->next;
+ }
+
+ if (!chip) {
+ /* Create a new chip */
+ chip = calloc(1, sizeof(*chip));
+ if (!chip)
+ return ERROR_FAIL;
+
+ chip->target = bank->target;
+ chip->probed = false;
+
+ bank->driver_priv = chip;
+
+ /* Insert it into the chips list (at head) */
+ chip->next = sam4l_chips;
+ sam4l_chips = chip;
+ }
+
+ if (bank->base != SAM4L_FLASH) {
+ LOG_ERROR("Address 0x%08" PRIx32 " invalid bank address (try 0x%08" PRIx32
+ "[at91sam4l series] )",
+ bank->base, SAM4L_FLASH);
+ return ERROR_FAIL;
+ }
+
+ return ERROR_OK;
+}
+
+static struct sam4l_chip_info *sam4l_find_chip_name(uint32_t id, uint32_t exid)
+{
+ unsigned int i;
+
+ id &= ~0xF;
+
+ for (i = 0; i < ARRAY_SIZE(sam4l_known_chips); i++) {
+ if (sam4l_known_chips[i].id == id && sam4l_known_chips[i].exid == exid)
+ return &sam4l_known_chips[i];
+ }
+
+ return NULL;
+}
+
+static int sam4l_check_page_erased(struct flash_bank *bank, uint32_t pn,
+ bool *is_erased_p)
+{
+ int res;
+ uint32_t st;
+
+ /* Issue a quick page read to verify that we've erased this page */
+ res = sam4l_flash_command(bank->target, SAM4L_FCMD_QPR, pn);
+ if (res != ERROR_OK) {
+ LOG_ERROR("Quick page read %d failed", pn);
+ return res;
+ }
+
+ /* Retrieve the flash status */
+ res = target_read_u32(bank->target, SAM4L_FLASHCALW + SAM4L_FSR, &st);
+ if (res != ERROR_OK) {
+ LOG_ERROR("Couldn't read erase status");
+ return res;
+ }
+
+ /* Is the page in question really erased? */
+ *is_erased_p = !!(st & (1<<5));
+
+ return ERROR_OK;
+}
+
+static int sam4l_probe(struct flash_bank *bank)
+{
+ uint32_t id, exid, param;
+ int res;
+ struct sam4l_info *chip = (struct sam4l_info *)bank->driver_priv;
+
+ if (chip->probed)
+ return ERROR_OK;
+
+ res = target_read_u32(bank->target, SAM4L_CHIPID + SAM4L_CIDR, &id);
+ if (res != ERROR_OK) {
+ LOG_ERROR("Couldn't read chip ID");
+ return res;
+ }
+
+ res = target_read_u32(bank->target, SAM4L_CHIPID + SAM4L_EXID, &exid);
+ if (res != ERROR_OK) {
+ LOG_ERROR("Couldn't read extended chip ID");
+ return res;
+ }
+
+ chip->details = sam4l_find_chip_name(id, exid);
+
+ /* The RAM capacity is in a lookup table. */
+ chip->ram_kb = sam4l_ram_sizes[0xF & (id >> 16)];
+
+ switch (0xF & (id >> 8)) {
+ case 0x07:
+ chip->flash_kb = 128;
+ break;
+ case 0x09:
+ chip->flash_kb = 256;
+ break;
+ case 0x0A:
+ chip->flash_kb = 512;
+ break;
+ default:
+ LOG_ERROR("Unknown flash size (chip ID is %08X), assuming 128K", id);
+ chip->flash_kb = 128;
+ break;
+ }
+
+ /* Retrieve the Flash parameters */
+ res = target_read_u32(bank->target, SAM4L_FLASHCALW + SAM4L_FPR, &param);
+ if (res != ERROR_OK) {
+ LOG_ERROR("Couldn't read Flash parameters");
+ return res;
+ }
+
+ /* Fetch the page size from the parameter register. Technically the flash
+ * capacity is there too though the manual mentions that not all parts will
+ * have it set so we use the Chip ID capacity information instead. */
+ chip->page_size = sam4l_page_sizes[0x7 & (param >> 8)];
+ assert(chip->page_size);
+ chip->num_pages = chip->flash_kb * 1024 / chip->page_size;
+
+ chip->sector_size = (chip->flash_kb * 1024) / SAM4L_NUM_SECTORS;
+ chip->pages_per_sector = chip->sector_size / chip->page_size;
+
+ /* Make sure the bank size is correct */
+ bank->size = chip->flash_kb * 1024;
+
+ /* Allocate the sector table. */
+ bank->num_sectors = SAM4L_NUM_SECTORS;
+ bank->sectors = calloc(bank->num_sectors, (sizeof((bank->sectors)[0])));
+ if (!bank->sectors)
+ return ERROR_FAIL;
+
+ /* Fill out the sector information: all SAM4L sectors are the same size and
+ * there is always a fixed number of them. */
+ for (int i = 0; i < bank->num_sectors; i++) {
+ bank->sectors[i].size = chip->sector_size;
+ bank->sectors[i].offset = i * chip->sector_size;
+ /* mark as unknown */
+ bank->sectors[i].is_erased = -1;
+ bank->sectors[i].is_protected = -1;
+ }
+
+ /* Done */
+ chip->probed = true;
+
+ LOG_INFO("SAM4L MCU: %s (Rev %c) (%uKB Flash with %d %dB pages, %uKB RAM)",
+ chip->details ? chip->details->name : "unknown", 'A' + (id & 0xF),
+ chip->flash_kb, chip->num_pages, chip->page_size, chip->ram_kb);
+
+ return ERROR_OK;
+}
+
+static int sam4l_protect_check(struct flash_bank *bank)
+{
+ int res;
+ uint32_t st;
+ struct sam4l_info *chip = (struct sam4l_info *)bank->driver_priv;
+
+ if (bank->target->state != TARGET_HALTED) {
+ LOG_ERROR("Target not halted");
+
+ return ERROR_TARGET_NOT_HALTED;
+ }
+
+ if (!chip->probed) {
+ if (sam4l_probe(bank) != ERROR_OK)
+ return ERROR_FLASH_BANK_NOT_PROBED;
+ }
+
+ res = target_read_u32(bank->target, SAM4L_FLASHCALW + SAM4L_FSR, &st);
+ if (res != ERROR_OK)
+ return res;
+
+ st >>= 16; /* There are 16 lock region bits in the upper half word */
+ for (int i = 0; i < bank->num_sectors; i++)
+ bank->sectors[i].is_protected = !!(st & (1<<i));
+
+ return ERROR_OK;
+}
+
+static int sam4l_protect(struct flash_bank *bank, int set, int first, int last)
+{
+ struct sam4l_info *chip = sam4l_chips;
+
+ if (bank->target->state != TARGET_HALTED) {
+ LOG_ERROR("Target not halted");
+
+ return ERROR_TARGET_NOT_HALTED;
+ }
+
+ if (!chip->probed) {
+ if (sam4l_probe(bank) != ERROR_OK)
+ return ERROR_FLASH_BANK_NOT_PROBED;
+ }
+
+ /* Make sure the pages make sense. */
+ if (first >= bank->num_sectors || last >= bank->num_sectors) {
+ LOG_ERROR("Protect range %d - %d not valid (%d sectors total)", first, last,
+ bank->num_sectors);
+ return ERROR_FAIL;
+ }
+
+ /* Try to lock or unlock each sector in the range. This is done by locking
+ * a region containing one page in that sector, we arbitrarily choose the 0th
+ * page in the sector. */
+ for (int i = first; i <= last; i++) {
+ int res;
+
+ res = sam4l_flash_command(bank->target,
+ set ? SAM4L_FCMD_LP : SAM4L_FCMD_UP, i * chip->pages_per_sector);
+ if (res != ERROR_OK) {
+ LOG_ERROR("Can't %slock region containing page %d", set ? "" : "un", i);
+ return res;
+ }
+ }
+
+ return ERROR_OK;
+}
+
+static int sam4l_erase(struct flash_bank *bank, int first, int last)
+{
+ int ret;
+ struct sam4l_info *chip = (struct sam4l_info *)bank->driver_priv;
+
+ if (bank->target->state != TARGET_HALTED) {
+ LOG_ERROR("Target not halted");
+
+ return ERROR_TARGET_NOT_HALTED;
+ }
+
+ if (!chip->probed) {
+ if (sam4l_probe(bank) != ERROR_OK)
+ return ERROR_FLASH_BANK_NOT_PROBED;
+ }
+
+ /* Make sure the pages make sense. */
+ if (first >= bank->num_sectors || last >= bank->num_sectors) {
+ LOG_ERROR("Erase range %d - %d not valid (%d sectors total)", first, last,
+ bank->num_sectors);
+ return ERROR_FAIL;
+ }
+
+ /* Erase */
+ if ((first == 0) && ((last + 1) == bank->num_sectors)) {
+ LOG_DEBUG("Erasing the whole chip");
+
+ ret = sam4l_flash_command(bank->target, SAM4L_FCMD_EA, -1);
+ if (ret != ERROR_OK) {
+ LOG_ERROR("Erase All failed");
+ return ret;
+ }
+ } else {
+ LOG_DEBUG("Erasing sectors %d through %d...\n", first, last);
+
+ /* For each sector... */
+ for (int i = first; i <= last; i++) {
+ /* For each page in that sector... */
+ for (int j = 0; j < chip->pages_per_sector; j++) {
+ int pn = i * chip->pages_per_sector + j;
+ bool is_erased = false;
+
+ /* Issue the page erase */
+ ret = sam4l_flash_command(bank->target, SAM4L_FCMD_EP, pn);
+ if (ret != ERROR_OK) {
+ LOG_ERROR("Erasing page %d failed", pn);
+ return ret;
+ }
+
+ ret = sam4l_check_page_erased(bank, pn, &is_erased);
+ if (ret != ERROR_OK)
+ return ret;
+
+ if (!is_erased) {
+ LOG_DEBUG("Page %d was not erased.", pn);
+ return ERROR_FAIL;
+ }
+ }
+
+ /* This sector is definitely erased. */
+ bank->sectors[i].is_erased = 1;
+ }
+ }
+
+ return ERROR_OK;
+}
+
+/* Write an entire page from host buffer 'buf' to page-aligned 'address' in the
+ * Flash. */
+static int sam4l_write_page(struct sam4l_info *chip, struct target *target,
+ uint32_t address, uint8_t *buf)
+{
+ int res;
+
+ /* Clear the page buffer before we write to it */
+ res = sam4l_flash_command(target, SAM4L_FCMD_CPB, -1);
+ if (res != ERROR_OK) {
+ LOG_ERROR("%s: can't clear page buffer", __func__);
+ return res;
+ }
+
+ /* Write the modified page back to the target's page buffer */
+ res = target_write_memory(target, address, 4, chip->page_size / 4, buf);
+
+ if (res != ERROR_OK) {
+ LOG_ERROR("%s: %d", __func__, __LINE__);
+ return res;
+ }
+
+ /* Commit the page contents to Flash: erase the current page and then
+ * write it out. */
+ res = sam4l_flash_command(target, SAM4L_FCMD_EP, -1);
+ if (res != ERROR_OK)
+ return res;
+ res = sam4l_flash_command(target, SAM4L_FCMD_WP, -1);
+
+ return res;
+}
+
+/* Write partial contents into page-aligned 'address' on the Flash from host
+ * buffer 'buf' by writing 'nb' of 'buf' at 'offset' into the Flash page. */
+static int sam4l_write_page_partial(struct sam4l_info *chip,
+ struct flash_bank *bank, uint32_t address, uint8_t *buf,
+ uint32_t page_offset, uint32_t nb)
+{
+ int res;
+ uint8_t *pg = malloc(chip->page_size);
+ if (!pg)
+ return ERROR_FAIL;
+
+ assert(page_offset + nb < chip->page_size);
+ assert((address % chip->page_size) == 0);
+
+ /* Retrieve the full page contents from Flash */
+ res = target_read_memory(bank->target, address, 4,
+ chip->page_size / 4, pg);
+ if (res != ERROR_OK) {
+ free(pg);
+ return res;
+ }
+
+ /* Insert our partial page over the data from Flash */
+ memcpy(pg + (page_offset % chip->page_size), buf, nb);
+
+ /* Write the page back out */
+ res = sam4l_write_page(chip, bank->target, address, pg);
+ free(pg);
+
+ return res;
+}
+
+static int sam4l_write(struct flash_bank *bank, uint8_t *buffer,
+ uint32_t offset, uint32_t count)
+{
+ int res;
+ uint32_t nb = 0;
+ struct sam4l_info *chip = (struct sam4l_info *)bank->driver_priv;
+
+ if (bank->target->state != TARGET_HALTED) {
+ LOG_ERROR("Target not halted");
+
+ return ERROR_TARGET_NOT_HALTED;
+ }
+
+ if (!chip->probed) {
+ if (sam4l_probe(bank) != ERROR_OK)
+ return ERROR_FLASH_BANK_NOT_PROBED;
+ }
+
+ if (offset % chip->page_size) {
+ /* We're starting at an unaligned offset so we'll write a partial page
+ * comprising that offset and up to the end of that page. */
+ nb = chip->page_size - (offset % chip->page_size);
+ if (nb > count)
+ nb = count;
+ } else if (count < chip->page_size) {
+ /* We're writing an aligned but partial page. */
+ nb = count;
+ }
+
+ if (nb > 0) {
+ res = sam4l_write_page_partial(chip, bank,
+ (offset / chip->page_size) * chip->page_size + bank->base,
+ buffer,
+ offset % chip->page_size, nb);
+ if (res != ERROR_OK)
+ return res;
+
+ /* We're done with the page contents */
+ count -= nb;
+ offset += nb;
+ }
+
+ /* There's at least one aligned page to write out. */
+ if (count >= chip->page_size) {
+ int np = count / chip->page_size + ((count % chip->page_size) ? 1 : 0);
+
+ for (int i = 0; i < np; i++) {
+ if (count >= chip->page_size) {
+ res = sam4l_write_page(chip, bank->target,
+ bank->base + (i * chip->page_size),
+ buffer + (i * chip->page_size));
+ /* Advance one page */
+ offset += chip->page_size;
+ count -= chip->page_size;
+ } else {
+ res = sam4l_write_page_partial(chip, bank,
+ bank->base + (i * chip->page_size),
+ buffer + (i * chip->page_size), 0, count);
+ /* We're done after this. */
+ offset += count;
+ count = 0;
+ }
+
+ if (res != ERROR_OK)
+ return res;
+ }
+ }
+
+ return ERROR_OK;
+}
+
+COMMAND_HANDLER(sam4l_handle_info_command)
+{
+ return ERROR_OK;
+}
+
+static const struct command_registration at91sam4l_exec_command_handlers[] = {
+ {
+ .name = "info",
+ .handler = sam4l_handle_info_command,
+ .mode = COMMAND_EXEC,
+ .help = "Print information about the current at91sam4l chip"
+ "and its flash configuration.",
+ },
+ COMMAND_REGISTRATION_DONE
+};
+static const struct command_registration at91sam4l_command_handlers[] = {
+ {
+ .name = "at91sam4l",
+ .mode = COMMAND_ANY,
+ .help = "at91sam4l flash command group",
+ .usage = "",
+ .chain = at91sam4l_exec_command_handlers,
+ },
+ COMMAND_REGISTRATION_DONE
+};
+
+struct flash_driver at91sam4l_flash = {
+ .name = "at91sam4l",
+ .commands = at91sam4l_command_handlers,
+ .flash_bank_command = sam4l_flash_bank_command,
+ .erase = sam4l_erase,
+ .protect = sam4l_protect,
+ .write = sam4l_write,
+ .read = default_flash_read,
+ .probe = sam4l_probe,
+ .auto_probe = sam4l_probe,
+ .erase_check = default_flash_blank_check,
+ .protect_check = sam4l_protect_check,
+};
diff --git a/src/flash/nor/drivers.c b/src/flash/nor/drivers.c
index aee7c562..b85ff13a 100644
--- a/src/flash/nor/drivers.c
+++ b/src/flash/nor/drivers.c
@@ -29,6 +29,7 @@ extern struct flash_driver lpcspifi_flash;
extern struct flash_driver cfi_flash;
extern struct flash_driver at91sam3_flash;
extern struct flash_driver at91sam4_flash;
+extern struct flash_driver at91sam4l_flash;
extern struct flash_driver at91sam7_flash;
extern struct flash_driver str7x_flash;
extern struct flash_driver str9x_flash;
@@ -67,6 +68,7 @@ static struct flash_driver *flash_drivers[] = {
&at91sam7_flash,
&at91sam3_flash,
&at91sam4_flash,
+ &at91sam4l_flash,
&str7x_flash,
&str9x_flash,
&aduc702x_flash,
diff --git a/tcl/target/at91sam4lXX.cfg b/tcl/target/at91sam4lXX.cfg
index 67759bc6..590d78f3 100644
--- a/tcl/target/at91sam4lXX.cfg
+++ b/tcl/target/at91sam4lXX.cfg
@@ -3,4 +3,6 @@
source [find target/at91sam4XXX.cfg]
-# no flash defined yet
+set _FLASHNAME $_CHIPNAME.flash
+flash bank $_FLASHNAME at91sam4l 0x00000000 0 1 1 $_TARGETNAME
+
generated by cgit v1.2.3-18-g5258 (git 2.32.0) at 2024-12-24 18:03:22 +0000