--- /dev/null
+/***************************************************************************
+ * Copyright (C) 2014 by Mahavir Jain <mjain@marvell.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. *
+ * *
+ ***************************************************************************/
+
+ /*
+ * This is QSPI flash controller driver for Marvell's Wireless
+ * Microcontroller platform.
+ *
+ * For more information please refer,
+ * https://origin-www.marvell.com/microcontrollers/wi-fi-microcontroller-platform/
+ */
+
+#ifdef HAVE_CONFIG_H
+#include "config.h"
+#endif
+
+#include "imp.h"
+#include "spi.h"
+#include <helper/binarybuffer.h>
+#include <target/algorithm.h>
+#include <target/armv7m.h>
+
+#define QSPI_R_EN (0x0)
+#define QSPI_W_EN (0x1)
+#define QSPI_SS_DISABLE (0x0)
+#define QSPI_SS_ENABLE (0x1)
+#define WRITE_DISBALE (0x0)
+#define WRITE_ENABLE (0x1)
+
+#define QSPI_TIMEOUT (1000)
+#define FIFO_FLUSH_TIMEOUT (1000)
+#define BLOCK_ERASE_TIMEOUT (1000)
+#define CHIP_ERASE_TIMEOUT (10000)
+
+#define SS_EN (1 << 0)
+#define XFER_RDY (1 << 1)
+#define RFIFO_EMPTY (1 << 4)
+#define WFIFO_EMPTY (1 << 6)
+#define WFIFO_FULL (1 << 7)
+#define FIFO_FLUSH (1 << 9)
+#define RW_EN (1 << 13)
+#define XFER_STOP (1 << 14)
+#define XFER_START (1 << 15)
+#define CONF_MASK (0x7)
+#define CONF_OFFSET (10)
+
+#define INS_WRITE_ENABLE 0x06
+#define INS_WRITE_DISABLE 0x04
+#define INS_READ_STATUS 0x05
+#define INS_PAGE_PROGRAM 0x02
+
+#define CNTL 0x0 /* QSPI_BASE + 0x0 */
+#define CONF 0x4
+#define DOUT 0x8
+#define DIN 0xc
+#define INSTR 0x10
+#define ADDR 0x14
+#define RDMODE 0x18
+#define HDRCNT 0x1c
+#define DINCNT 0x20
+
+struct mrvlqspi_flash_bank {
+ int probed;
+ uint32_t reg_base;
+ uint32_t bank_num;
+ const struct flash_device *dev;
+};
+
+static inline uint32_t mrvlqspi_get_reg(struct flash_bank *bank, uint32_t reg)
+{
+ struct mrvlqspi_flash_bank *mrvlqspi_info = bank->driver_priv;
+ return reg + mrvlqspi_info->reg_base;
+}
+
+static inline int mrvlqspi_set_din_cnt(struct flash_bank *bank, uint32_t count)
+{
+ struct target *target = bank->target;
+
+ return target_write_u32(target, mrvlqspi_get_reg(bank, DINCNT), count);
+}
+
+static inline int mrvlqspi_set_addr(struct flash_bank *bank, uint32_t addr)
+{
+ struct target *target = bank->target;
+
+ return target_write_u32(target, mrvlqspi_get_reg(bank, ADDR), addr);
+}
+
+static inline int mrvlqspi_set_instr(struct flash_bank *bank, uint32_t instr)
+{
+ struct target *target = bank->target;
+
+ return target_write_u32(target, mrvlqspi_get_reg(bank, INSTR), instr);
+}
+
+static inline int mrvlqspi_set_hdr_cnt(struct flash_bank *bank, uint32_t hdr_cnt)
+{
+ struct target *target = bank->target;
+
+ return target_write_u32(target, mrvlqspi_get_reg(bank, HDRCNT), hdr_cnt);
+}
+
+static int mrvlqspi_set_conf(struct flash_bank *bank, uint32_t conf_val)
+{
+ int retval;
+ uint32_t regval;
+ struct target *target = bank->target;
+
+ retval = target_read_u32(target,
+ mrvlqspi_get_reg(bank, CONF), ®val);
+ if (retval != ERROR_OK)
+ return retval;
+
+ regval &= ~(CONF_MASK << CONF_OFFSET);
+ regval |= (conf_val << CONF_OFFSET);
+
+ return target_write_u32(target,
+ mrvlqspi_get_reg(bank, CONF), regval);
+}
+
+static int mrvlqspi_set_ss_state(struct flash_bank *bank, bool state, int timeout)
+{
+ int retval;
+ uint32_t regval;
+ struct target *target = bank->target;
+
+ retval = target_read_u32(target,
+ mrvlqspi_get_reg(bank, CNTL), ®val);
+ if (retval != ERROR_OK)
+ return retval;
+
+ if (state)
+ regval |= SS_EN;
+ else
+ regval &= ~(SS_EN);
+
+ retval = target_write_u32(target,
+ mrvlqspi_get_reg(bank, CNTL), regval);
+ if (retval != ERROR_OK)
+ return retval;
+
+ /* wait for xfer_ready to set */
+ for (;;) {
+ retval = target_read_u32(target,
+ mrvlqspi_get_reg(bank, CNTL), ®val);
+ if (retval != ERROR_OK)
+ return retval;
+ LOG_DEBUG("status: 0x%x", regval);
+ if ((regval & XFER_RDY) == XFER_RDY)
+ break;
+ if (timeout-- <= 0) {
+ LOG_ERROR("timed out waiting for flash");
+ return ERROR_FAIL;
+ }
+ alive_sleep(1);
+ }
+ return ERROR_OK;
+}
+
+static int mrvlqspi_start_transfer(struct flash_bank *bank, bool rw_mode)
+{
+ int retval;
+ uint32_t regval;
+ struct target *target = bank->target;
+
+ retval = mrvlqspi_set_ss_state(bank, QSPI_SS_ENABLE, QSPI_TIMEOUT);
+ if (retval != ERROR_OK)
+ return retval;
+
+ retval = target_read_u32(target,
+ mrvlqspi_get_reg(bank, CONF), ®val);
+ if (retval != ERROR_OK)
+ return retval;
+
+ if (rw_mode)
+ regval |= RW_EN;
+ else
+ regval &= ~(RW_EN);
+
+ regval |= XFER_START;
+
+ retval = target_write_u32(target,
+ mrvlqspi_get_reg(bank, CONF), regval);
+ if (retval != ERROR_OK)
+ return retval;
+
+ return ERROR_OK;
+}
+
+static int mrvlqspi_stop_transfer(struct flash_bank *bank)
+{
+ int retval;
+ uint32_t regval;
+ struct target *target = bank->target;
+ int timeout = QSPI_TIMEOUT;
+
+ /* wait for xfer_ready and wfifo_empty to set */
+ for (;;) {
+ retval = target_read_u32(target,
+ mrvlqspi_get_reg(bank, CNTL), ®val);
+ if (retval != ERROR_OK)
+ return retval;
+ LOG_DEBUG("status: 0x%x", regval);
+ if ((regval & (XFER_RDY | WFIFO_EMPTY)) ==
+ (XFER_RDY | WFIFO_EMPTY))
+ break;
+ if (timeout-- <= 0) {
+ LOG_ERROR("timed out waiting for flash");
+ return ERROR_FAIL;
+ }
+ alive_sleep(1);
+ }
+
+ retval = target_read_u32(target,
+ mrvlqspi_get_reg(bank, CONF), ®val);
+ if (retval != ERROR_OK)
+ return retval;
+
+ regval |= XFER_STOP;
+
+ retval = target_write_u32(target,
+ mrvlqspi_get_reg(bank, CONF), regval);
+ if (retval != ERROR_OK)
+ return retval;
+
+ /* wait for xfer_start to reset */
+ for (;;) {
+ retval = target_read_u32(target,
+ mrvlqspi_get_reg(bank, CONF), ®val);
+ if (retval != ERROR_OK)
+ return retval;
+ LOG_DEBUG("status: 0x%x", regval);
+ if ((regval & XFER_START) == 0)
+ break;
+ if (timeout-- <= 0) {
+ LOG_ERROR("timed out waiting for flash");
+ return ERROR_FAIL;
+ }
+ alive_sleep(1);
+ }
+
+ retval = mrvlqspi_set_ss_state(bank, QSPI_SS_DISABLE, QSPI_TIMEOUT);
+ if (retval != ERROR_OK)
+ return retval;
+
+ return ERROR_OK;
+}
+
+static int mrvlqspi_fifo_flush(struct flash_bank *bank, int timeout)
+{
+ int retval;
+ uint32_t val;
+ struct target *target = bank->target;
+
+ retval = target_read_u32(target,
+ mrvlqspi_get_reg(bank, CONF), &val);
+ if (retval != ERROR_OK)
+ return retval;
+
+ val |= FIFO_FLUSH;
+
+ retval = target_write_u32(target,
+ mrvlqspi_get_reg(bank, CONF), val);
+ if (retval != ERROR_OK)
+ return retval;
+
+ /* wait for fifo_flush to clear */
+ for (;;) {
+ retval = target_read_u32(target,
+ mrvlqspi_get_reg(bank, CONF), &val);
+ if (retval != ERROR_OK)
+ return retval;
+ LOG_DEBUG("status: 0x%x", val);
+ if ((val & FIFO_FLUSH) == 0)
+ break;
+ if (timeout-- <= 0) {
+ LOG_ERROR("timed out waiting for flash");
+ return ERROR_FAIL;
+ }
+ alive_sleep(1);
+ }
+ return ERROR_OK;
+}
+
+static int mrvlqspi_read_byte(struct flash_bank *bank, uint8_t *data)
+{
+ int retval;
+ uint32_t val;
+ struct target *target = bank->target;
+
+ /* wait for rfifo_empty to reset */
+ for (;;) {
+ retval = target_read_u32(target,
+ mrvlqspi_get_reg(bank, CNTL), &val);
+ if (retval != ERROR_OK)
+ return retval;
+ LOG_DEBUG("status: 0x%x", val);
+ if ((val & RFIFO_EMPTY) == 0)
+ break;
+ usleep(10);
+ }
+
+ retval = target_read_u32(target,
+ mrvlqspi_get_reg(bank, DIN), &val);
+ if (retval != ERROR_OK)
+ return retval;
+
+ *data = val & 0xFF;
+
+ return ERROR_OK;
+}
+
+static int mrvlqspi_flash_busy_status(struct flash_bank *bank, int timeout)
+{
+ uint8_t val;
+ int retval;
+
+ /* Flush read/write fifo's */
+ retval = mrvlqspi_fifo_flush(bank, FIFO_FLUSH_TIMEOUT);
+ if (retval != ERROR_OK)
+ return retval;
+
+ /* Set instruction/addr count value */
+ retval = mrvlqspi_set_hdr_cnt(bank, 0x1);
+ if (retval != ERROR_OK)
+ return retval;
+
+ /* Read flash status register in continuous manner */
+ retval = mrvlqspi_set_din_cnt(bank, 0x0);
+ if (retval != ERROR_OK)
+ return retval;
+
+ /* Set instruction */
+ retval = mrvlqspi_set_instr(bank, INS_READ_STATUS);
+ if (retval != ERROR_OK)
+ return retval;
+
+ /* Set data and addr pin length */
+ retval = mrvlqspi_set_conf(bank, 0x0);
+ if (retval != ERROR_OK)
+ return retval;
+
+ /* Enable read mode transfer */
+ retval = mrvlqspi_start_transfer(bank, QSPI_R_EN);
+ if (retval != ERROR_OK)
+ return retval;
+
+ for (;;) {
+ retval = mrvlqspi_read_byte(bank, &val);
+ if (retval != ERROR_OK)
+ return retval;
+ if (!(val & 0x1))
+ break;
+ if (timeout-- <= 0) {
+ LOG_ERROR("timed out waiting for flash");
+ return ERROR_FAIL;
+ }
+ alive_sleep(1);
+ }
+
+ return mrvlqspi_stop_transfer(bank);
+}
+
+static int mrvlqspi_set_write_status(struct flash_bank *bank, bool mode)
+{
+ int retval;
+ uint32_t instr;
+
+ /* Flush read/write fifo's */
+ retval = mrvlqspi_fifo_flush(bank, FIFO_FLUSH_TIMEOUT);
+ if (retval != ERROR_OK)
+ return retval;
+
+ /* Set instruction/addr count value */
+ retval = mrvlqspi_set_hdr_cnt(bank, 0x1);
+ if (retval != ERROR_OK)
+ return retval;
+
+ if (mode)
+ instr = INS_WRITE_ENABLE;
+ else
+ instr = INS_WRITE_DISABLE;
+
+ /* Set instruction */
+ retval = mrvlqspi_set_instr(bank, instr);
+ if (retval != ERROR_OK)
+ return retval;
+
+ retval = mrvlqspi_start_transfer(bank, QSPI_W_EN);
+ if (retval != ERROR_OK)
+ return retval;
+
+ retval = mrvlqspi_stop_transfer(bank);
+ if (retval != ERROR_OK)
+ return retval;
+
+ return retval;
+}
+
+static int mrvlqspi_read_id(struct flash_bank *bank, uint32_t *id)
+{
+ uint8_t id_buf[3] = {0, 0, 0};
+ int retval, i;
+
+ LOG_DEBUG("Getting ID");
+
+ /* Flush read/write fifo's */
+ retval = mrvlqspi_fifo_flush(bank, FIFO_FLUSH_TIMEOUT);
+ if (retval != ERROR_OK)
+ return retval;
+
+ /* Set instruction/addr count value */
+ retval = mrvlqspi_set_hdr_cnt(bank, 0x1);
+ if (retval != ERROR_OK)
+ return retval;
+
+ /* Set count for number of bytes to read */
+ retval = mrvlqspi_set_din_cnt(bank, 0x3);
+ if (retval != ERROR_OK)
+ return retval;
+
+ /* Set instruction */
+ retval = mrvlqspi_set_instr(bank, SPIFLASH_READ_ID);
+ if (retval != ERROR_OK)
+ return retval;
+
+ /* Set data and addr pin length */
+ retval = mrvlqspi_set_conf(bank, 0x0);
+ if (retval != ERROR_OK)
+ return retval;
+
+ retval = mrvlqspi_start_transfer(bank, QSPI_R_EN);
+ if (retval != ERROR_OK)
+ return retval;
+
+ for (i = 0; i < 3; i++) {
+ retval = mrvlqspi_read_byte(bank, &id_buf[i]);
+ if (retval != ERROR_OK)
+ return retval;
+ }
+
+ LOG_DEBUG("ID is 0x%x 0x%x 0x%x", id_buf[0], id_buf[1], id_buf[2]);
+ retval = mrvlqspi_set_ss_state(bank, QSPI_SS_DISABLE, QSPI_TIMEOUT);
+ if (retval != ERROR_OK)
+ return retval;
+
+ *id = id_buf[2] << 16 | id_buf[1] << 8 | id_buf[0];
+ return ERROR_OK;
+}
+
+static int mrvlqspi_block_erase(struct flash_bank *bank, uint32_t offset)
+{
+ int retval;
+ struct mrvlqspi_flash_bank *mrvlqspi_info = bank->driver_priv;
+
+ /* Set flash write enable */
+ retval = mrvlqspi_set_write_status(bank, WRITE_ENABLE);
+ if (retval != ERROR_OK)
+ return retval;
+
+ /* Set instruction/addr count value */
+ retval = mrvlqspi_set_hdr_cnt(bank, (0x1 | (0x3 << 4)));
+ if (retval != ERROR_OK)
+ return retval;
+
+ /* Set read offset address */
+ retval = mrvlqspi_set_addr(bank, offset);
+ if (retval != ERROR_OK)
+ return retval;
+
+ /* Set instruction */
+ retval = mrvlqspi_set_instr(bank, mrvlqspi_info->dev->erase_cmd);
+ if (retval != ERROR_OK)
+ return retval;
+
+ retval = mrvlqspi_start_transfer(bank, QSPI_W_EN);
+ if (retval != ERROR_OK)
+ return retval;
+
+ retval = mrvlqspi_stop_transfer(bank);
+ if (retval != ERROR_OK)
+ return retval;
+
+ return mrvlqspi_flash_busy_status(bank, BLOCK_ERASE_TIMEOUT);
+}
+
+static int mrvlqspi_bulk_erase(struct flash_bank *bank)
+{
+ int retval;
+ struct mrvlqspi_flash_bank *mrvlqspi_info = bank->driver_priv;
+
+ /* Set flash write enable */
+ retval = mrvlqspi_set_write_status(bank, WRITE_ENABLE);
+ if (retval != ERROR_OK)
+ return retval;
+
+ /* Set instruction */
+ retval = mrvlqspi_set_instr(bank, mrvlqspi_info->dev->chip_erase_cmd);
+ if (retval != ERROR_OK)
+ return retval;
+
+ retval = mrvlqspi_start_transfer(bank, QSPI_W_EN);
+ if (retval != ERROR_OK)
+ return retval;
+
+ retval = mrvlqspi_stop_transfer(bank);
+ if (retval != ERROR_OK)
+ return retval;
+
+ return mrvlqspi_flash_busy_status(bank, CHIP_ERASE_TIMEOUT);
+}
+
+static int mrvlqspi_flash_erase(struct flash_bank *bank, int first, int last)
+{
+ struct target *target = bank->target;
+ struct mrvlqspi_flash_bank *mrvlqspi_info = bank->driver_priv;
+ int retval = ERROR_OK;
+ int sector;
+
+ LOG_DEBUG("erase from sector %d to sector %d", first, last);
+
+ if (target->state != TARGET_HALTED) {
+ LOG_ERROR("Target not halted");
+ return ERROR_TARGET_NOT_HALTED;
+ }
+
+ if ((first < 0) || (last < first) || (last >= bank->num_sectors)) {
+ LOG_ERROR("Flash sector invalid");
+ return ERROR_FLASH_SECTOR_INVALID;
+ }
+
+ if (!(mrvlqspi_info->probed)) {
+ LOG_ERROR("Flash bank not probed");
+ return ERROR_FLASH_BANK_NOT_PROBED;
+ }
+
+ for (sector = first; sector <= last; sector++) {
+ if (bank->sectors[sector].is_protected) {
+ LOG_ERROR("Flash sector %d protected", sector);
+ return ERROR_FAIL;
+ }
+ }
+
+ /* If we're erasing the entire chip and the flash supports
+ * it, use a bulk erase instead of going sector-by-sector. */
+ if (first == 0 && last == (bank->num_sectors - 1)
+ && mrvlqspi_info->dev->chip_erase_cmd !=
+ mrvlqspi_info->dev->erase_cmd) {
+ LOG_DEBUG("Chip supports the bulk erase command."\
+ " Will use bulk erase instead of sector-by-sector erase.");
+ retval = mrvlqspi_bulk_erase(bank);
+ if (retval == ERROR_OK) {
+ return retval;
+ } else
+ LOG_WARNING("Bulk flash erase failed."
+ " Falling back to sector-by-sector erase.");
+ }
+
+ for (sector = first; sector <= last; sector++) {
+ retval = mrvlqspi_block_erase(bank,
+ sector * mrvlqspi_info->dev->sectorsize);
+ if (retval != ERROR_OK)
+ return retval;
+ }
+
+ return retval;
+}
+
+static int mrvlqspi_flash_write(struct flash_bank *bank, const uint8_t *buffer,
+ uint32_t offset, uint32_t count)
+{
+ struct target *target = bank->target;
+ struct mrvlqspi_flash_bank *mrvlqspi_info = bank->driver_priv;
+ int retval = ERROR_OK;
+ uint32_t page_size, fifo_size;
+ struct working_area *fifo;
+ struct reg_param reg_params[6];
+ struct armv7m_algorithm armv7m_info;
+ struct working_area *write_algorithm;
+ int sector;
+
+ LOG_DEBUG("offset=0x%08" PRIx32 " count=0x%08" PRIx32,
+ offset, count);
+
+ if (target->state != TARGET_HALTED) {
+ LOG_ERROR("Target not halted");
+ return ERROR_TARGET_NOT_HALTED;
+ }
+
+ if (offset + count > mrvlqspi_info->dev->size_in_bytes) {
+ LOG_WARNING("Writes past end of flash. Extra data discarded.");
+ count = mrvlqspi_info->dev->size_in_bytes - offset;
+ }
+
+ /* Check sector protection */
+ for (sector = 0; sector < bank->num_sectors; sector++) {
+ /* Start offset in or before this sector? */
+ /* End offset in or behind this sector? */
+ if ((offset <
+ (bank->sectors[sector].offset + bank->sectors[sector].size))
+ && ((offset + count - 1) >= bank->sectors[sector].offset)
+ && bank->sectors[sector].is_protected) {
+ LOG_ERROR("Flash sector %d protected", sector);
+ return ERROR_FAIL;
+ }
+ }
+
+ page_size = mrvlqspi_info->dev->pagesize;
+
+ /* See contrib/loaders/flash/mrvlqspi.S for src */
+ static const uint8_t mrvlqspi_flash_write_code[] = {
+ 0x4f, 0xf0, 0x00, 0x0a, 0xa2, 0x44, 0x92, 0x45,
+ 0x7f, 0xf6, 0xfc, 0xaf, 0x00, 0xf0, 0x6b, 0xf8,
+ 0x5f, 0xf0, 0x01, 0x08, 0xc5, 0xf8, 0x1c, 0x80,
+ 0x5f, 0xf0, 0x06, 0x08, 0xc5, 0xf8, 0x10, 0x80,
+ 0x5f, 0xf0, 0x01, 0x09, 0x00, 0xf0, 0x6b, 0xf8,
+ 0x00, 0xf0, 0x7d, 0xf8, 0x5f, 0xf0, 0x31, 0x08,
+ 0xc5, 0xf8, 0x1c, 0x80, 0x90, 0x46, 0xc5, 0xf8,
+ 0x14, 0x80, 0x5f, 0xf0, 0x02, 0x08, 0xc5, 0xf8,
+ 0x10, 0x80, 0x5f, 0xf0, 0x01, 0x09, 0x00, 0xf0,
+ 0x5a, 0xf8, 0xd0, 0xf8, 0x00, 0x80, 0xb8, 0xf1,
+ 0x00, 0x0f, 0x00, 0xf0, 0x8b, 0x80, 0x47, 0x68,
+ 0x47, 0x45, 0x3f, 0xf4, 0xf6, 0xaf, 0x17, 0xf8,
+ 0x01, 0x9b, 0x00, 0xf0, 0x30, 0xf8, 0x8f, 0x42,
+ 0x28, 0xbf, 0x00, 0xf1, 0x08, 0x07, 0x47, 0x60,
+ 0x01, 0x3b, 0x00, 0x2b, 0x00, 0xf0, 0x05, 0x80,
+ 0x02, 0xf1, 0x01, 0x02, 0x92, 0x45, 0x7f, 0xf4,
+ 0xe4, 0xaf, 0x00, 0xf0, 0x50, 0xf8, 0xa2, 0x44,
+ 0x00, 0xf0, 0x2d, 0xf8, 0x5f, 0xf0, 0x01, 0x08,
+ 0xc5, 0xf8, 0x1c, 0x80, 0x5f, 0xf0, 0x00, 0x08,
+ 0xc5, 0xf8, 0x20, 0x80, 0x5f, 0xf0, 0x05, 0x08,
+ 0xc5, 0xf8, 0x10, 0x80, 0x5f, 0xf0, 0x00, 0x09,
+ 0x00, 0xf0, 0x29, 0xf8, 0x00, 0xf0, 0x13, 0xf8,
+ 0x09, 0xf0, 0x01, 0x09, 0xb9, 0xf1, 0x00, 0x0f,
+ 0xf8, 0xd1, 0x00, 0xf0, 0x34, 0xf8, 0x00, 0x2b,
+ 0xa4, 0xd1, 0x00, 0xf0, 0x53, 0xb8, 0xd5, 0xf8,
+ 0x00, 0x80, 0x5f, 0xea, 0x08, 0x68, 0xfa, 0xd4,
+ 0xc5, 0xf8, 0x08, 0x90, 0x70, 0x47, 0xd5, 0xf8,
+ 0x00, 0x80, 0x5f, 0xea, 0xc8, 0x68, 0xfa, 0xd4,
+ 0xd5, 0xf8, 0x0c, 0x90, 0x70, 0x47, 0xd5, 0xf8,
+ 0x04, 0x80, 0x48, 0xf4, 0x00, 0x78, 0xc5, 0xf8,
+ 0x04, 0x80, 0xd5, 0xf8, 0x04, 0x80, 0x5f, 0xea,
+ 0x88, 0x58, 0xfa, 0xd4, 0x70, 0x47, 0xd5, 0xf8,
+ 0x00, 0x80, 0x48, 0xf0, 0x01, 0x08, 0xc5, 0xf8,
+ 0x00, 0x80, 0xd5, 0xf8, 0x00, 0x80, 0x5f, 0xea,
+ 0x88, 0x78, 0xfa, 0xd5, 0xd5, 0xf8, 0x04, 0x80,
+ 0x69, 0xf3, 0x4d, 0x38, 0x48, 0xf4, 0x00, 0x48,
+ 0xc5, 0xf8, 0x04, 0x80, 0x70, 0x47, 0xd5, 0xf8,
+ 0x00, 0x80, 0x5f, 0xea, 0x88, 0x78, 0xfa, 0xd5,
+ 0xd5, 0xf8, 0x00, 0x80, 0x5f, 0xea, 0x48, 0x68,
+ 0xfa, 0xd5, 0xd5, 0xf8, 0x04, 0x80, 0x48, 0xf4,
+ 0x80, 0x48, 0xc5, 0xf8, 0x04, 0x80, 0xd5, 0xf8,
+ 0x04, 0x80, 0x5f, 0xea, 0x08, 0x48, 0xfa, 0xd4,
+ 0xd5, 0xf8, 0x00, 0x80, 0x28, 0xf0, 0x01, 0x08,
+ 0xc5, 0xf8, 0x00, 0x80, 0xd5, 0xf8, 0x00, 0x80,
+ 0x5f, 0xea, 0x88, 0x78, 0xfa, 0xd5, 0x70, 0x47,
+ 0x00, 0x20, 0x50, 0x60, 0x30, 0x46, 0x00, 0xbe
+ };
+
+ if (target_alloc_working_area(target, sizeof(mrvlqspi_flash_write_code),
+ &write_algorithm) != ERROR_OK) {
+ LOG_ERROR("Insufficient working area. You must configure"\
+ " a working area > %zdB in order to write to SPIFI flash.",
+ sizeof(mrvlqspi_flash_write_code));
+ return ERROR_TARGET_RESOURCE_NOT_AVAILABLE;
+ };
+
+ retval = target_write_buffer(target, write_algorithm->address,
+ sizeof(mrvlqspi_flash_write_code),
+ mrvlqspi_flash_write_code);
+ if (retval != ERROR_OK) {
+ target_free_working_area(target, write_algorithm);
+ return retval;
+ }
+
+ /* FIFO allocation */
+ fifo_size = target_get_working_area_avail(target);
+
+ if (fifo_size == 0) {
+ /* if we already allocated the writing code but failed to get fifo
+ * space, free the algorithm */
+ target_free_working_area(target, write_algorithm);
+
+ LOG_ERROR("Insufficient working area. Please allocate at least"\
+ " %zdB of working area to enable flash writes.",
+ sizeof(mrvlqspi_flash_write_code) + 1
+ );
+
+ return ERROR_TARGET_RESOURCE_NOT_AVAILABLE;
+ } else if (fifo_size < page_size)
+ LOG_WARNING("Working area size is limited; flash writes may be"\
+ " slow. Increase working area size to at least %zdB"\
+ " to reduce write times.",
+ (size_t)(sizeof(mrvlqspi_flash_write_code) + page_size)
+ );
+
+ if (target_alloc_working_area(target, fifo_size, &fifo) != ERROR_OK) {
+ target_free_working_area(target, write_algorithm);
+ return ERROR_TARGET_RESOURCE_NOT_AVAILABLE;
+ };
+
+ armv7m_info.common_magic = ARMV7M_COMMON_MAGIC;
+ armv7m_info.core_mode = ARM_MODE_THREAD;
+
+ init_reg_param(®_params[0], "r0", 32, PARAM_IN_OUT); /* buffer start, status (out) */
+ init_reg_param(®_params[1], "r1", 32, PARAM_OUT); /* buffer end */
+ init_reg_param(®_params[2], "r2", 32, PARAM_OUT); /* target address */
+ init_reg_param(®_params[3], "r3", 32, PARAM_OUT); /* count (halfword-16bit) */
+ init_reg_param(®_params[4], "r4", 32, PARAM_OUT); /* page size */
+ init_reg_param(®_params[5], "r5", 32, PARAM_OUT); /* qspi base address */
+
+ buf_set_u32(reg_params[0].value, 0, 32, fifo->address);
+ buf_set_u32(reg_params[1].value, 0, 32, fifo->address + fifo->size);
+ buf_set_u32(reg_params[2].value, 0, 32, offset);
+ buf_set_u32(reg_params[3].value, 0, 32, count);
+ buf_set_u32(reg_params[4].value, 0, 32, page_size);
+ buf_set_u32(reg_params[5].value, 0, 32, (uint32_t) mrvlqspi_info->reg_base);
+
+ retval = target_run_flash_async_algorithm(target, buffer, count, 1,
+ 0, NULL,
+ 6, reg_params,
+ fifo->address, fifo->size,
+ write_algorithm->address, 0,
+ &armv7m_info
+ );
+
+ if (retval != ERROR_OK)
+ LOG_ERROR("Error executing flash write algorithm");
+
+ target_free_working_area(target, fifo);
+ target_free_working_area(target, write_algorithm);
+
+ destroy_reg_param(®_params[0]);
+ destroy_reg_param(®_params[1]);
+ destroy_reg_param(®_params[2]);
+ destroy_reg_param(®_params[3]);
+ destroy_reg_param(®_params[4]);
+ destroy_reg_param(®_params[5]);
+
+ return retval;
+}
+
+int mrvlqspi_flash_read(struct flash_bank *bank, uint8_t *buffer,
+ uint32_t offset, uint32_t count)
+{
+ struct target *target = bank->target;
+ struct mrvlqspi_flash_bank *mrvlqspi_info = bank->driver_priv;
+ int retval;
+ uint32_t i;
+
+ if (target->state != TARGET_HALTED) {
+ LOG_ERROR("Target not halted");
+ return ERROR_TARGET_NOT_HALTED;
+ }
+
+ if (!(mrvlqspi_info->probed)) {
+ LOG_ERROR("Flash bank not probed");
+ return ERROR_FLASH_BANK_NOT_PROBED;
+ }
+
+ /* Flush read/write fifo's */
+ retval = mrvlqspi_fifo_flush(bank, FIFO_FLUSH_TIMEOUT);
+ if (retval != ERROR_OK)
+ return retval;
+
+ /* Set instruction/addr count value */
+ retval = mrvlqspi_set_hdr_cnt(bank, (0x1 | (0x3 << 4)));
+ if (retval != ERROR_OK)
+ return retval;
+
+ /* Set count for number of bytes to read */
+ retval = mrvlqspi_set_din_cnt(bank, count);
+ if (retval != ERROR_OK)
+ return retval;
+
+ /* Set read address */
+ retval = mrvlqspi_set_addr(bank, offset);
+ if (retval != ERROR_OK)
+ return retval;
+
+ /* Set instruction */
+ retval = mrvlqspi_set_instr(bank, SPIFLASH_READ);
+ if (retval != ERROR_OK)
+ return retval;
+
+ /* Set data and addr pin length */
+ retval = mrvlqspi_set_conf(bank, 0x0);
+ if (retval != ERROR_OK)
+ return retval;
+
+ retval = mrvlqspi_start_transfer(bank, QSPI_R_EN);
+ if (retval != ERROR_OK)
+ return retval;
+
+ for (i = 0; i < count; i++) {
+ retval = mrvlqspi_read_byte(bank, &buffer[i]);
+ if (retval != ERROR_OK)
+ return retval;
+ }
+
+ retval = mrvlqspi_set_ss_state(bank, QSPI_SS_DISABLE, QSPI_TIMEOUT);
+ if (retval != ERROR_OK)
+ return retval;
+
+ return ERROR_OK;
+}
+
+static int mrvlqspi_probe(struct flash_bank *bank)
+{
+ struct target *target = bank->target;
+ struct mrvlqspi_flash_bank *mrvlqspi_info = bank->driver_priv;
+ uint32_t id = 0;
+ int retval;
+ struct flash_sector *sectors;
+
+ /* If we've already probed, we should be fine to skip this time. */
+ if (mrvlqspi_info->probed)
+ return ERROR_OK;
+
+ if (target->state != TARGET_HALTED) {
+ LOG_ERROR("Target not halted");
+ return ERROR_TARGET_NOT_HALTED;
+ }
+
+ mrvlqspi_info->probed = 0;
+ mrvlqspi_info->bank_num = bank->bank_number;
+
+ /* Read flash JEDEC ID */
+ retval = mrvlqspi_read_id(bank, &id);
+ if (retval != ERROR_OK)
+ return retval;
+
+ mrvlqspi_info->dev = NULL;
+ for (const struct flash_device *p = flash_devices; p->name ; p++)
+ if (p->device_id == id) {
+ mrvlqspi_info->dev = p;
+ break;
+ }
+
+ if (!mrvlqspi_info->dev) {
+ LOG_ERROR("Unknown flash device ID 0x%08x", id);
+ return ERROR_FAIL;
+ }
+
+ LOG_INFO("Found flash device \'%s\' ID 0x%08x",
+ mrvlqspi_info->dev->name, mrvlqspi_info->dev->device_id);
+
+ /* Set correct size value */
+ bank->size = mrvlqspi_info->dev->size_in_bytes;
+
+ /* create and fill sectors array */
+ bank->num_sectors = mrvlqspi_info->dev->size_in_bytes /
+ mrvlqspi_info->dev->sectorsize;
+ sectors = malloc(sizeof(struct flash_sector) * bank->num_sectors);
+ if (sectors == NULL) {
+ LOG_ERROR("not enough memory");
+ return ERROR_FAIL;
+ }
+
+ for (int sector = 0; sector < bank->num_sectors; sector++) {
+ sectors[sector].offset =
+ sector * mrvlqspi_info->dev->sectorsize;
+ sectors[sector].size = mrvlqspi_info->dev->sectorsize;
+ sectors[sector].is_erased = -1;
+ sectors[sector].is_protected = 0;
+ }
+
+ bank->sectors = sectors;
+ mrvlqspi_info->probed = 1;
+
+ return ERROR_OK;
+}
+
+static int mrvlqspi_auto_probe(struct flash_bank *bank)
+{
+ struct mrvlqspi_flash_bank *mrvlqspi_info = bank->driver_priv;
+ if (mrvlqspi_info->probed)
+ return ERROR_OK;
+ return mrvlqspi_probe(bank);
+}
+
+static int mrvlqspi_flash_erase_check(struct flash_bank *bank)
+{
+ /* Not implemented yet */
+ return ERROR_OK;
+}
+
+static int mrvlqspi_protect_check(struct flash_bank *bank)
+{
+ /* Not implemented yet */
+ return ERROR_OK;
+}
+
+int mrvlqspi_get_info(struct flash_bank *bank, char *buf, int buf_size)
+{
+ struct mrvlqspi_flash_bank *mrvlqspi_info = bank->driver_priv;
+
+ if (!(mrvlqspi_info->probed)) {
+ snprintf(buf, buf_size,
+ "\nQSPI flash bank not probed yet\n");
+ return ERROR_OK;
+ }
+
+ snprintf(buf, buf_size, "\nQSPI flash information:\n"
+ " Device \'%s\' ID 0x%08x\n",
+ mrvlqspi_info->dev->name, mrvlqspi_info->dev->device_id);
+
+ return ERROR_OK;
+}
+
+FLASH_BANK_COMMAND_HANDLER(mrvlqspi_flash_bank_command)
+{
+ struct mrvlqspi_flash_bank *mrvlqspi_info;
+
+ if (CMD_ARGC < 7)
+ return ERROR_COMMAND_SYNTAX_ERROR;
+
+ mrvlqspi_info = malloc(sizeof(struct mrvlqspi_flash_bank));
+ if (mrvlqspi_info == NULL) {
+ LOG_ERROR("not enough memory");
+ return ERROR_FAIL;
+ }
+
+ /* Get QSPI controller register map base address */
+ COMMAND_PARSE_NUMBER(u32, CMD_ARGV[6], mrvlqspi_info->reg_base);
+ bank->driver_priv = mrvlqspi_info;
+ mrvlqspi_info->probed = 0;
+
+ return ERROR_OK;
+}
+
+struct flash_driver mrvlqspi_flash = {
+ .name = "mrvlqspi",
+ .flash_bank_command = mrvlqspi_flash_bank_command,
+ .erase = mrvlqspi_flash_erase,
+ .protect = NULL,
+ .write = mrvlqspi_flash_write,
+ .read = mrvlqspi_flash_read,
+ .probe = mrvlqspi_probe,
+ .auto_probe = mrvlqspi_auto_probe,
+ .erase_check = mrvlqspi_flash_erase_check,
+ .protect_check = mrvlqspi_protect_check,
+ .info = mrvlqspi_get_info,
+};
Code Review / openocd.git / blobdiff