forked from M-Labs/nix-scripts
openocd: clean up SPI flash patch (#62)
This commit is contained in:
parent
367c3d5ed5
commit
1319a2f536
@ -100,462 +100,6 @@ diff '--color=auto' -Naur openocd-0.11.0/src/flash/nor/jtagspi.c openocd-0.11.0.
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return jtagspi_wait(bank, JTAGSPI_MAX_TIMEOUT);
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return jtagspi_wait(bank, JTAGSPI_MAX_TIMEOUT);
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}
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}
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diff '--color=auto' -Naur openocd-0.11.0/src/flash/nor/jtagspi.c.orig openocd-0.11.0.new/src/flash/nor/jtagspi.c.orig
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--- openocd-0.11.0/src/flash/nor/jtagspi.c.orig 1970-01-01 08:00:00.000000000 +0800
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+++ openocd-0.11.0.new/src/flash/nor/jtagspi.c.orig 2020-12-10 03:43:09.000000000 +0800
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@@ -0,0 +1,452 @@
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+/***************************************************************************
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+ * Copyright (C) 2015 Robert Jordens <jordens@gmail.com> *
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+ * *
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+ * This program is free software; you can redistribute it and/or modify *
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+ * it under the terms of the GNU General Public License as published by *
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+ * the Free Software Foundation; either version 2 of the License, or *
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+ * (at your option) any later version. *
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+ * *
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+ * This program is distributed in the hope that it will be useful, *
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+ * but WITHOUT ANY WARRANTY; without even the implied warranty of *
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+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
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+ * GNU General Public License for more details. *
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+ * *
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+ * You should have received a copy of the GNU General Public License *
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+ * along with this program. If not, see <http://www.gnu.org/licenses/>. *
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+ ***************************************************************************/
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+
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+#ifdef HAVE_CONFIG_H
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+#include "config.h"
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+#endif
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+
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+#include "imp.h"
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+#include <jtag/jtag.h>
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+#include <flash/nor/spi.h>
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+#include <helper/time_support.h>
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+
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+#define JTAGSPI_MAX_TIMEOUT 3000
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+
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+
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+struct jtagspi_flash_bank {
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+ struct jtag_tap *tap;
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+ const struct flash_device *dev;
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+ bool probed;
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+ uint32_t ir;
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+};
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+
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+FLASH_BANK_COMMAND_HANDLER(jtagspi_flash_bank_command)
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+{
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+ struct jtagspi_flash_bank *info;
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+
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+ if (CMD_ARGC < 7)
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+ return ERROR_COMMAND_SYNTAX_ERROR;
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+
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+ info = malloc(sizeof(struct jtagspi_flash_bank));
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+ if (info == NULL) {
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+ LOG_ERROR("no memory for flash bank info");
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+ return ERROR_FAIL;
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+ }
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+ bank->driver_priv = info;
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+
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+ info->tap = NULL;
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+ info->probed = false;
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+ COMMAND_PARSE_NUMBER(u32, CMD_ARGV[6], info->ir);
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+
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+ return ERROR_OK;
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+}
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+
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+static void jtagspi_set_ir(struct flash_bank *bank)
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+{
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+ struct jtagspi_flash_bank *info = bank->driver_priv;
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+ struct scan_field field;
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+ uint8_t buf[4] = { 0 };
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+
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+ LOG_DEBUG("loading jtagspi ir");
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+ buf_set_u32(buf, 0, info->tap->ir_length, info->ir);
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+ field.num_bits = info->tap->ir_length;
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+ field.out_value = buf;
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+ field.in_value = NULL;
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+ jtag_add_ir_scan(info->tap, &field, TAP_IDLE);
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+}
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+
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+static void flip_u8(uint8_t *in, uint8_t *out, int len)
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+{
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+ for (int i = 0; i < len; i++)
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+ out[i] = flip_u32(in[i], 8);
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+}
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+
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+static int jtagspi_cmd(struct flash_bank *bank, uint8_t cmd,
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+ uint32_t *addr, uint8_t *data, int len)
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+{
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+ struct jtagspi_flash_bank *info = bank->driver_priv;
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+ struct scan_field fields[6];
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+ uint8_t marker = 1;
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+ uint8_t xfer_bits_buf[4];
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+ uint8_t addr_buf[3];
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+ uint8_t *data_buf;
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+ uint32_t xfer_bits;
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+ int is_read, lenb, n;
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+
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+ /* LOG_DEBUG("cmd=0x%02x len=%i", cmd, len); */
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+
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+ is_read = (len < 0);
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+ if (is_read)
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+ len = -len;
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+
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+ n = 0;
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+
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+ fields[n].num_bits = 1;
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+ fields[n].out_value = ▮
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+ fields[n].in_value = NULL;
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+ n++;
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+
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+ xfer_bits = 8 + len - 1;
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+ /* cmd + read/write - 1 due to the counter implementation */
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+ if (addr)
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+ xfer_bits += 24;
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+ h_u32_to_be(xfer_bits_buf, xfer_bits);
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+ flip_u8(xfer_bits_buf, xfer_bits_buf, 4);
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+ fields[n].num_bits = 32;
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+ fields[n].out_value = xfer_bits_buf;
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+ fields[n].in_value = NULL;
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+ n++;
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+
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+ cmd = flip_u32(cmd, 8);
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+ fields[n].num_bits = 8;
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+ fields[n].out_value = &cmd;
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+ fields[n].in_value = NULL;
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+ n++;
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+
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+ if (addr) {
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+ h_u24_to_be(addr_buf, *addr);
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+ flip_u8(addr_buf, addr_buf, 3);
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+ fields[n].num_bits = 24;
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+ fields[n].out_value = addr_buf;
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+ fields[n].in_value = NULL;
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+ n++;
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+ }
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+
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+ lenb = DIV_ROUND_UP(len, 8);
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+ data_buf = malloc(lenb);
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+ if (lenb > 0) {
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+ if (data_buf == NULL) {
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+ LOG_ERROR("no memory for spi buffer");
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+ return ERROR_FAIL;
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+ }
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+ if (is_read) {
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+ fields[n].num_bits = jtag_tap_count_enabled();
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+ fields[n].out_value = NULL;
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+ fields[n].in_value = NULL;
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+ n++;
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+
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+ fields[n].out_value = NULL;
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+ fields[n].in_value = data_buf;
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+ } else {
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+ flip_u8(data, data_buf, lenb);
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+ fields[n].out_value = data_buf;
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+ fields[n].in_value = NULL;
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+ }
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+ fields[n].num_bits = len;
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+ n++;
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+ }
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+
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+ jtagspi_set_ir(bank);
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+ /* passing from an IR scan to SHIFT-DR clears BYPASS registers */
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+ jtag_add_dr_scan(info->tap, n, fields, TAP_IDLE);
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+ int retval = jtag_execute_queue();
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+
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+ if (is_read)
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+ flip_u8(data_buf, data, lenb);
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+ free(data_buf);
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+ return retval;
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+}
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+
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+static int jtagspi_probe(struct flash_bank *bank)
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+{
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+ struct jtagspi_flash_bank *info = bank->driver_priv;
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+ struct flash_sector *sectors;
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+ uint8_t in_buf[3];
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+ uint32_t id, sectorsize;
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+
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+ if (info->probed)
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+ free(bank->sectors);
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+ info->probed = false;
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+
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+ if (bank->target->tap == NULL) {
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+ LOG_ERROR("Target has no JTAG tap");
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+ return ERROR_FAIL;
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+ }
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+ info->tap = bank->target->tap;
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+
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+ jtagspi_cmd(bank, SPIFLASH_READ_ID, NULL, in_buf, -24);
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+ /* the table in spi.c has the manufacturer byte (first) as the lsb */
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+ id = le_to_h_u24(in_buf);
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+
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+ info->dev = NULL;
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+ for (const struct flash_device *p = flash_devices; p->name ; p++)
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+ if (p->device_id == id) {
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+ info->dev = p;
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+ break;
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+ }
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+
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+ if (!(info->dev)) {
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+ LOG_ERROR("Unknown flash device (ID 0x%08" PRIx32 ")", id);
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+ return ERROR_FAIL;
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+ }
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+
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+ LOG_INFO("Found flash device \'%s\' (ID 0x%08" PRIx32 ")",
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+ info->dev->name, info->dev->device_id);
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+
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+ /* Set correct size value */
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+ bank->size = info->dev->size_in_bytes;
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+ if (bank->size <= (1UL << 16))
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+ LOG_WARNING("device needs 2-byte addresses - not implemented");
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+ if (bank->size > (1UL << 24))
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+ LOG_WARNING("device needs paging or 4-byte addresses - not implemented");
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+
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+ /* if no sectors, treat whole bank as single sector */
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+ sectorsize = info->dev->sectorsize ?
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+ info->dev->sectorsize : info->dev->size_in_bytes;
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+
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+ /* create and fill sectors array */
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+ bank->num_sectors = info->dev->size_in_bytes / sectorsize;
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+ sectors = malloc(sizeof(struct flash_sector) * bank->num_sectors);
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+ if (sectors == NULL) {
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+ LOG_ERROR("not enough memory");
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+ return ERROR_FAIL;
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+ }
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+
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+ for (unsigned int sector = 0; sector < bank->num_sectors; sector++) {
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+ sectors[sector].offset = sector * sectorsize;
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+ sectors[sector].size = sectorsize;
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+ sectors[sector].is_erased = -1;
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+ sectors[sector].is_protected = 0;
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+ }
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+
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+ bank->sectors = sectors;
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+ info->probed = true;
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+ return ERROR_OK;
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+}
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+
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+static int jtagspi_read_status(struct flash_bank *bank, uint32_t *status)
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+{
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+ uint8_t buf;
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+ int err = jtagspi_cmd(bank, SPIFLASH_READ_STATUS, NULL, &buf, -8);
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+ if (err == ERROR_OK) {
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+ *status = buf;
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+ /* LOG_DEBUG("status=0x%08" PRIx32, *status); */
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+ }
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+
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+ return err;
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+}
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+
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+static int jtagspi_wait(struct flash_bank *bank, int timeout_ms)
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+{
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+ uint32_t status;
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+ int64_t t0 = timeval_ms();
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+ int64_t dt;
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+
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+ do {
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+ dt = timeval_ms() - t0;
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+
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+ int retval = jtagspi_read_status(bank, &status);
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+ if (retval != ERROR_OK)
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+ return retval;
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+
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+ if ((status & SPIFLASH_BSY_BIT) == 0) {
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+ LOG_DEBUG("waited %" PRId64 " ms", dt);
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+ return ERROR_OK;
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+ }
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+ alive_sleep(1);
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+ } while (dt <= timeout_ms);
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+
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+ LOG_ERROR("timeout, device still busy");
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+ return ERROR_FAIL;
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+}
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+
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+static int jtagspi_write_enable(struct flash_bank *bank)
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+{
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+ uint32_t status;
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+
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+ jtagspi_cmd(bank, SPIFLASH_WRITE_ENABLE, NULL, NULL, 0);
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+
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+ int retval = jtagspi_read_status(bank, &status);
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+ if (retval != ERROR_OK)
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+ return retval;
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+
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+ if ((status & SPIFLASH_WE_BIT) == 0) {
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+ LOG_ERROR("Cannot enable write to flash. Status=0x%08" PRIx32, status);
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+ return ERROR_FAIL;
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+ }
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+ return ERROR_OK;
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+}
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+
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+static int jtagspi_bulk_erase(struct flash_bank *bank)
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+{
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+ struct jtagspi_flash_bank *info = bank->driver_priv;
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+ int retval;
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+ int64_t t0 = timeval_ms();
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+
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+ if (info->dev->chip_erase_cmd == 0x00)
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+ return ERROR_FLASH_OPER_UNSUPPORTED;
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+
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+ retval = jtagspi_write_enable(bank);
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+ if (retval != ERROR_OK)
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+ return retval;
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+ jtagspi_cmd(bank, info->dev->chip_erase_cmd, NULL, NULL, 0);
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+ retval = jtagspi_wait(bank, bank->num_sectors*JTAGSPI_MAX_TIMEOUT);
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+ LOG_INFO("took %" PRId64 " ms", timeval_ms() - t0);
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+ return retval;
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+}
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+
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+static int jtagspi_sector_erase(struct flash_bank *bank, unsigned int sector)
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+{
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+ struct jtagspi_flash_bank *info = bank->driver_priv;
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+ int retval;
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+ int64_t t0 = timeval_ms();
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+
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+ retval = jtagspi_write_enable(bank);
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+ if (retval != ERROR_OK)
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+ return retval;
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+ jtagspi_cmd(bank, info->dev->erase_cmd, &bank->sectors[sector].offset, NULL, 0);
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+ retval = jtagspi_wait(bank, JTAGSPI_MAX_TIMEOUT);
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+ LOG_INFO("sector %u took %" PRId64 " ms", sector, timeval_ms() - t0);
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+ return retval;
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+}
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+
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+static int jtagspi_erase(struct flash_bank *bank, unsigned int first,
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+ unsigned int last)
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+{
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+ struct jtagspi_flash_bank *info = bank->driver_priv;
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+ int retval = ERROR_OK;
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+
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+ LOG_DEBUG("erase from sector %u to sector %u", first, last);
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+
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+ if ((last < first) || (last >= bank->num_sectors)) {
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+ LOG_ERROR("Flash sector invalid");
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+ return ERROR_FLASH_SECTOR_INVALID;
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+ }
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+
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+ if (!(info->probed)) {
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+ LOG_ERROR("Flash bank not probed");
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+ return ERROR_FLASH_BANK_NOT_PROBED;
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+ }
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+
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+ for (unsigned int sector = first; sector <= last; sector++) {
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+ if (bank->sectors[sector].is_protected) {
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+ LOG_ERROR("Flash sector %u protected", sector);
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+ return ERROR_FAIL;
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+ }
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+ }
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+
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+ if (first == 0 && last == (bank->num_sectors - 1)
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+ && info->dev->chip_erase_cmd != info->dev->erase_cmd) {
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+ LOG_DEBUG("Trying bulk erase.");
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+ retval = jtagspi_bulk_erase(bank);
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+ if (retval == ERROR_OK)
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+ return retval;
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+ else
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+ LOG_WARNING("Bulk flash erase failed. Falling back to sector erase.");
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+ }
|
|
||||||
+
|
|
||||||
+ if (info->dev->erase_cmd == 0x00)
|
|
||||||
+ return ERROR_FLASH_OPER_UNSUPPORTED;
|
|
||||||
+
|
|
||||||
+ for (unsigned int sector = first; sector <= last; sector++) {
|
|
||||||
+ retval = jtagspi_sector_erase(bank, sector);
|
|
||||||
+ if (retval != ERROR_OK) {
|
|
||||||
+ LOG_ERROR("Sector erase failed.");
|
|
||||||
+ break;
|
|
||||||
+ }
|
|
||||||
+ }
|
|
||||||
+
|
|
||||||
+ return retval;
|
|
||||||
+}
|
|
||||||
+
|
|
||||||
+static int jtagspi_protect(struct flash_bank *bank, int set, unsigned int first,
|
|
||||||
+ unsigned int last)
|
|
||||||
+{
|
|
||||||
+ for (unsigned int sector = first; sector <= last; sector++)
|
|
||||||
+ bank->sectors[sector].is_protected = set;
|
|
||||||
+ return ERROR_OK;
|
|
||||||
+}
|
|
||||||
+
|
|
||||||
+static int jtagspi_read(struct flash_bank *bank, uint8_t *buffer, uint32_t offset, uint32_t count)
|
|
||||||
+{
|
|
||||||
+ struct jtagspi_flash_bank *info = bank->driver_priv;
|
|
||||||
+
|
|
||||||
+ if (!(info->probed)) {
|
|
||||||
+ LOG_ERROR("Flash bank not yet probed.");
|
|
||||||
+ return ERROR_FLASH_BANK_NOT_PROBED;
|
|
||||||
+ }
|
|
||||||
+
|
|
||||||
+ jtagspi_cmd(bank, SPIFLASH_READ, &offset, buffer, -count*8);
|
|
||||||
+ return ERROR_OK;
|
|
||||||
+}
|
|
||||||
+
|
|
||||||
+static int jtagspi_page_write(struct flash_bank *bank, const uint8_t *buffer, uint32_t offset, uint32_t count)
|
|
||||||
+{
|
|
||||||
+ int retval;
|
|
||||||
+
|
|
||||||
+ retval = jtagspi_write_enable(bank);
|
|
||||||
+ if (retval != ERROR_OK)
|
|
||||||
+ return retval;
|
|
||||||
+ jtagspi_cmd(bank, SPIFLASH_PAGE_PROGRAM, &offset, (uint8_t *) buffer, count*8);
|
|
||||||
+ return jtagspi_wait(bank, JTAGSPI_MAX_TIMEOUT);
|
|
||||||
+}
|
|
||||||
+
|
|
||||||
+static int jtagspi_write(struct flash_bank *bank, const uint8_t *buffer, uint32_t offset, uint32_t count)
|
|
||||||
+{
|
|
||||||
+ struct jtagspi_flash_bank *info = bank->driver_priv;
|
|
||||||
+ int retval;
|
|
||||||
+ uint32_t n, pagesize;
|
|
||||||
+
|
|
||||||
+ if (!(info->probed)) {
|
|
||||||
+ LOG_ERROR("Flash bank not yet probed.");
|
|
||||||
+ return ERROR_FLASH_BANK_NOT_PROBED;
|
|
||||||
+ }
|
|
||||||
+
|
|
||||||
+ /* if no write pagesize, use reasonable default */
|
|
||||||
+ pagesize = info->dev->pagesize ? info->dev->pagesize : SPIFLASH_DEF_PAGESIZE;
|
|
||||||
+
|
|
||||||
+ for (n = 0; n < count; n += pagesize) {
|
|
||||||
+ retval = jtagspi_page_write(bank, buffer + n, offset + n,
|
|
||||||
+ MIN(count - n, pagesize));
|
|
||||||
+ if (retval != ERROR_OK) {
|
|
||||||
+ LOG_ERROR("page write error");
|
|
||||||
+ return retval;
|
|
||||||
+ }
|
|
||||||
+ LOG_DEBUG("wrote page at 0x%08" PRIx32, offset + n);
|
|
||||||
+ }
|
|
||||||
+ return ERROR_OK;
|
|
||||||
+}
|
|
||||||
+
|
|
||||||
+static int jtagspi_info(struct flash_bank *bank, char *buf, int buf_size)
|
|
||||||
+{
|
|
||||||
+ struct jtagspi_flash_bank *info = bank->driver_priv;
|
|
||||||
+
|
|
||||||
+ if (!(info->probed)) {
|
|
||||||
+ snprintf(buf, buf_size, "\nJTAGSPI flash bank not probed yet\n");
|
|
||||||
+ return ERROR_OK;
|
|
||||||
+ }
|
|
||||||
+
|
|
||||||
+ snprintf(buf, buf_size, "\nSPIFI flash information:\n"
|
|
||||||
+ " Device \'%s\' (ID 0x%08" PRIx32 ")\n",
|
|
||||||
+ info->dev->name, info->dev->device_id);
|
|
||||||
+
|
|
||||||
+ return ERROR_OK;
|
|
||||||
+}
|
|
||||||
+
|
|
||||||
+const struct flash_driver jtagspi_flash = {
|
|
||||||
+ .name = "jtagspi",
|
|
||||||
+ .flash_bank_command = jtagspi_flash_bank_command,
|
|
||||||
+ .erase = jtagspi_erase,
|
|
||||||
+ .protect = jtagspi_protect,
|
|
||||||
+ .write = jtagspi_write,
|
|
||||||
+ .read = jtagspi_read,
|
|
||||||
+ .probe = jtagspi_probe,
|
|
||||||
+ .auto_probe = jtagspi_probe,
|
|
||||||
+ .erase_check = default_flash_blank_check,
|
|
||||||
+ .info = jtagspi_info,
|
|
||||||
+ .free_driver_priv = default_flash_free_driver_priv,
|
|
||||||
+};
|
|
||||||
diff '--color=auto' -Naur openocd-0.11.0/src/flash/nor/spi.h openocd-0.11.0.new/src/flash/nor/spi.h
|
diff '--color=auto' -Naur openocd-0.11.0/src/flash/nor/spi.h openocd-0.11.0.new/src/flash/nor/spi.h
|
||||||
--- openocd-0.11.0/src/flash/nor/spi.h 2020-12-10 03:43:09.000000000 +0800
|
--- openocd-0.11.0/src/flash/nor/spi.h 2020-12-10 03:43:09.000000000 +0800
|
||||||
+++ openocd-0.11.0.new/src/flash/nor/spi.h 2021-07-27 18:32:08.106935700 +0800
|
+++ openocd-0.11.0.new/src/flash/nor/spi.h 2021-07-27 18:32:08.106935700 +0800
|
||||||
|
|||||||
Loading…
Reference in New Issue
Block a user