--- /dev/null
+/***************************************************************************
+ * Copyright (C) 2005 by Dominic Rath *
+ * Dominic.Rath@gmx.de *
+ * *
+ * Copyright (C) 2008 by Spencer Oliver *
+ * spen@spen-soft.co.uk *
+ * *
+ * Copyright (C) 2011 by Andreas Fritiofson *
+ * andreas.fritiofson@gmail.com *
+ * *
+ * Copyright (C) 2014 by Tomas Vanek (PSoC 4 support derived from STM32) *
+ * vanekt@fbl.cz *
+ * *
+ * 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. *
+ ***************************************************************************/
+
+#ifdef HAVE_CONFIG_H
+#include "config.h"
+#endif
+
+#include "imp.h"
+#include <helper/binarybuffer.h>
+#include <jtag/jtag.h>
+#include <target/algorithm.h>
+#include <target/armv7m.h>
+
+/* device documets:
+
+ PSoC(R) 4: PSoC 4200 Family Datasheet
+ Document Number: 001-87197 Rev. *B Revised August 29, 2013
+
+ PSoC 4100/4200 Family PSoC(R) 4 Architecture TRM
+ Document No. 001-85634 Rev. *C March 25, 2014
+
+ PSoC(R) 4 Registers TRM Spec.
+ Document No. 001-85847 Rev. *A June 25, 2013
+
+ CY8C41xx, CY8C42xx Programming Specifications
+ Document No. 001-81799 Rev. *C March 4, 2014
+*/
+
+/* register locations */
+#define PSOC4_CPUSS_SYSREQ 0x40000004
+#define PSOC4_CPUSS_SYSARG 0x40000008
+#define PSOC4_TEST_MODE 0x40030014
+#define PSOC4_SPCIF_GEOMETRY 0x400E0000
+
+#define PSOC4_SFLASH_MACRO 0x0ffff000
+
+/* constants */
+#define PSOC4_SROM_KEY1 0xb6
+#define PSOC4_SROM_KEY2 0xd3
+#define PSOC4_SROM_SYSREQ_BIT (1<<31)
+#define PSOC4_SROM_HMASTER_BIT (1<<30)
+#define PSOC4_SROM_PRIVILEGED_BIT (1<<28)
+#define PSOC4_SROM_STATUS_SUCCEEDED 0xa0000000
+#define PSOC4_SROM_STATUS_FAILED 0xf0000000
+
+#define PSOC4_CMD_GET_SILICON_ID 0
+#define PSOC4_CMD_LOAD_LATCH 4
+#define PSOC4_CMD_WRITE_ROW 5
+#define PSOC4_CMD_PROGRAM_ROW 6
+#define PSOC4_CMD_ERASE_ALL 0xa
+#define PSOC4_CMD_CHECKSUM 0xb
+#define PSOC4_CMD_WRITE_PROTECTION 0xd
+
+#define PSOC4_CHIP_PROT_VIRGIN 0x0
+#define PSOC4_CHIP_PROT_OPEN 0x1
+#define PSOC4_CHIP_PROT_PROTECTED 0x2
+#define PSOC4_CHIP_PROT_KILL 0x4
+
+
+struct psoc4_chip_details {
+ uint16_t id;
+ const char *type;
+ const char *package;
+ uint16_t flash_size_in_kb;
+};
+
+/* list of PSoC 4 chips
+ * flash_size_in_kb is not necessary as it can be decoded from SPCIF_GEOMETRY
+ */
+const struct psoc4_chip_details psoc4_devices[] = {
+ /* 4200 series */
+ { 0x04A6, "CY8C4245PVI-482", "SSOP-28", .flash_size_in_kb = 32 },
+ { 0x04B6, "CY8C4245LQI-483", "QFN-40", .flash_size_in_kb = 32 },
+ { 0x04C8, "CY8C4245AXI-483", "TQFP-44", .flash_size_in_kb = 32 },
+ { 0x04FB, "CY8C4245AXI-473", "TQFP-44", .flash_size_in_kb = 32 },
+ { 0x04F0, "CY8C4244PVI-432", "SSOP-28", .flash_size_in_kb = 16 },
+ { 0x04F1, "CY8C4244PVI-442", "SSOP-28", .flash_size_in_kb = 16 },
+ { 0x04F6, "CY8C4244LQI-443", "QFN-40", .flash_size_in_kb = 16 },
+ { 0x04FA, "CY8C4244AXI-443", "TQFP-44", .flash_size_in_kb = 16 },
+
+ /* 4100 series */
+ { 0x0410, "CY8C4124PVI-432", "SSOP-28", .flash_size_in_kb = 16 },
+ { 0x0411, "CY8C4124PVI-442", "SSOP-28", .flash_size_in_kb = 16 },
+ { 0x0416, "CY8C4124LQI-443", "QFN-40", .flash_size_in_kb = 16 },
+ { 0x041A, "CY8C4124AXI-443", "TQFP-44", .flash_size_in_kb = 16 },
+ { 0x041B, "CY8C4125AXI-473", "TQFP-44", .flash_size_in_kb = 32 },
+ { 0x0412, "CY8C4125PVI-482", "SSOP-28", .flash_size_in_kb = 32 },
+ { 0x0417, "CY8C4125LQI-483", "QFN-40", .flash_size_in_kb = 32 },
+ { 0x041C, "CY8C4125AXI-483", "TQFP-44", .flash_size_in_kb = 32 },
+};
+
+
+struct psoc4_flash_bank {
+ uint16_t row_size;
+ uint32_t user_bank_size;
+ int probed;
+ uint32_t silicon_id;
+ uint8_t chip_protection;
+ uint16_t cmd_program_row;
+};
+
+
+static const struct psoc4_chip_details *psoc4_details_by_id(uint32_t silicon_id)
+{
+ const struct psoc4_chip_details *p = psoc4_devices;
+ unsigned int i;
+ uint16_t id = silicon_id >> 16; /* ignore die revision */
+ for (i = 0; i < sizeof(psoc4_devices)/sizeof(psoc4_devices[0]); i++, p++) {
+ if (p->id == id)
+ return p;
+ }
+ LOG_DEBUG("Unknown PSoC 4 device silicon id 0x%08" PRIx32 ".", silicon_id);
+ return NULL;
+}
+
+static const char *psoc4_decode_chip_protection(uint8_t protection)
+{
+ switch (protection) {
+ case PSOC4_CHIP_PROT_VIRGIN:
+ return "protection VIRGIN";
+ case PSOC4_CHIP_PROT_OPEN:
+ return "protection open";
+ case PSOC4_CHIP_PROT_PROTECTED:
+ return "PROTECTED";
+ case PSOC4_CHIP_PROT_KILL:
+ return "protection KILL";
+ default:
+ LOG_WARNING("Unknown protection state 0x%02" PRIx8 "", protection);
+ return "";
+ }
+}
+
+
+/* flash bank <name> psoc <base> <size> 0 0 <target#>
+ */
+FLASH_BANK_COMMAND_HANDLER(psoc4_flash_bank_command)
+{
+ struct psoc4_flash_bank *psoc4_info;
+
+ if (CMD_ARGC < 6)
+ return ERROR_COMMAND_SYNTAX_ERROR;
+
+ psoc4_info = calloc(1, sizeof(struct psoc4_flash_bank));
+
+ bank->driver_priv = psoc4_info;
+ psoc4_info->user_bank_size = bank->size;
+
+ return ERROR_OK;
+}
+
+
+/* PSoC 4 system ROM request
+ * Setting SROM_SYSREQ_BIT in CPUSS_SYSREQ register runs NMI service
+ * in sysrem ROM. Algorithm just waits for NMI to finish.
+ * When sysreq_params_size == 0 only one parameter is passed in CPUSS_SYSARG register.
+ * Otherwise address of memory parameter block is set in CPUSS_SYSARG
+ * and the first parameter is written to the first word of parameter block
+ */
+static int psoc4_sysreq(struct target *target, uint8_t cmd, uint16_t cmd_param,
+ uint32_t *sysreq_params, uint32_t sysreq_params_size)
+{
+ struct working_area *sysreq_wait_algorithm;
+ struct working_area *sysreq_mem;
+
+ struct reg_param reg_params[1];
+ struct armv7m_algorithm armv7m_info;
+
+ int retval = ERROR_OK;
+
+ uint32_t param1 = PSOC4_SROM_KEY1
+ | ((PSOC4_SROM_KEY2 + cmd) << 8)
+ | (cmd_param << 16);
+
+ static uint8_t psoc4_sysreq_wait_code[] = {
+ /* system request NMI is served immediately after algo run
+ now we are done: break */
+ 0x00, 0xbe, /* bkpt 0 */
+ };
+
+ const int code_words = (sizeof(psoc4_sysreq_wait_code) + 3) / 4;
+ /* stack must be aligned */
+ const int stack_size = 196;
+ /* tested stack sizes on PSoC 4:
+ ERASE_ALL 144
+ PROGRAM_ROW 112
+ other sysreq 68
+ */
+
+ /* allocate area for sysreq wait code and stack */
+ if (target_alloc_working_area(target, code_words * 4 + stack_size,
+ &sysreq_wait_algorithm) != ERROR_OK) {
+ LOG_DEBUG("no working area for sysreq code");
+ return ERROR_TARGET_RESOURCE_NOT_AVAILABLE;
+ };
+
+ /* Write the code */
+ retval = target_write_buffer(target,
+ sysreq_wait_algorithm->address,
+ sizeof(psoc4_sysreq_wait_code),
+ psoc4_sysreq_wait_code);
+ if (retval != ERROR_OK) {
+ /* we already allocated the writing code, but failed to get a
+ * buffer, free the algorithm */
+ goto cleanup_algo;
+ }
+
+ if (sysreq_params_size) {
+ /* Allocate memory for sysreq_params */
+ retval = target_alloc_working_area(target, sysreq_params_size, &sysreq_mem);
+ if (retval != ERROR_OK) {
+ LOG_WARNING("no working area for sysreq parameters");
+
+ /* we already allocated the writing code, but failed to get a
+ * buffer, free the algorithm */
+ retval = ERROR_TARGET_RESOURCE_NOT_AVAILABLE;
+ goto cleanup_algo;
+ }
+
+ /* Write sysreq_params */
+ sysreq_params[0] = param1;
+ retval = target_write_buffer(target, sysreq_mem->address,
+ sysreq_params_size, (uint8_t *)sysreq_params);
+ if (retval != ERROR_OK)
+ goto cleanup_mem;
+
+ /* Set address of sysreq parameters block */
+ retval = target_write_u32(target, PSOC4_CPUSS_SYSARG, sysreq_mem->address);
+ if (retval != ERROR_OK)
+ goto cleanup_mem;
+
+ } else {
+ /* Sysreq without memory block of parameters */
+ /* Set register parameter */
+ retval = target_write_u32(target, PSOC4_CPUSS_SYSARG, param1);
+ if (retval != ERROR_OK)
+ goto cleanup_mem;
+ }
+
+ armv7m_info.common_magic = ARMV7M_COMMON_MAGIC;
+ armv7m_info.core_mode = ARM_MODE_THREAD;
+
+ /* sysreq stack */
+ init_reg_param(®_params[0], "sp", 32, PARAM_OUT);
+ buf_set_u32(reg_params[0].value, 0, 32,
+ sysreq_wait_algorithm->address + sysreq_wait_algorithm->size);
+
+ struct armv7m_common *armv7m = target_to_armv7m(target);
+ if (armv7m == NULL) {
+
+ /* something is very wrong if armv7m is NULL */
+ LOG_ERROR("unable to get armv7m target");
+ goto cleanup;
+ }
+
+ /* Set SROM request */
+ retval = target_write_u32(target, PSOC4_CPUSS_SYSREQ,
+ PSOC4_SROM_SYSREQ_BIT | PSOC4_SROM_HMASTER_BIT | cmd);
+ if (retval != ERROR_OK)
+ goto cleanup;
+
+ /* Execute wait code */
+ retval = target_run_algorithm(target, 0, NULL,
+ sizeof(reg_params) / sizeof(*reg_params), reg_params,
+ sysreq_wait_algorithm->address, 0, 1000, &armv7m_info);
+ if (retval != ERROR_OK)
+ LOG_ERROR("sysreq wait code execution failed");
+
+cleanup:
+ destroy_reg_param(®_params[0]);
+
+cleanup_mem:
+ if (sysreq_params_size)
+ target_free_working_area(target, sysreq_mem);
+
+cleanup_algo:
+ target_free_working_area(target, sysreq_wait_algorithm);
+
+ return retval;
+}
+
+
+/* helper routine to get silicon ID from a PSoC 4 chip */
+static int psoc4_get_silicon_id(struct target *target, uint32_t *silicon_id, uint8_t *protection)
+{
+ uint32_t params = PSOC4_SROM_KEY1
+ | ((PSOC4_SROM_KEY2 + PSOC4_CMD_GET_SILICON_ID) << 8);
+ uint32_t part0, part1;
+
+ int retval = psoc4_sysreq(target, PSOC4_CMD_GET_SILICON_ID, 0, NULL, 0);
+ if (retval != ERROR_OK)
+ return retval;
+
+ retval = target_read_u32(target, PSOC4_CPUSS_SYSARG, &part0);
+ if (retval != ERROR_OK)
+ return retval;
+
+ if (part0 == params) {
+ LOG_ERROR("sysreq silicon id request not served");
+ return ERROR_FAIL;
+ }
+
+ retval = target_read_u32(target, PSOC4_CPUSS_SYSREQ, &part1);
+ if (retval != ERROR_OK)
+ return retval;
+
+ uint32_t silicon = ((part0 & 0xffff) << 16)
+ | (((part0 >> 16) & 0xff) << 8)
+ | (part1 & 0xff);
+ uint8_t prot = (part1 >> 12) & 0xff;
+
+ if (silicon_id)
+ *silicon_id = silicon;
+ if (protection)
+ *protection = prot;
+
+ LOG_DEBUG("silicon id: 0x%" PRIx32 "", silicon);
+ LOG_DEBUG("protection: 0x%" PRIx8 "", prot);
+ return retval;
+}
+
+
+static int psoc4_protect_check(struct flash_bank *bank)
+{
+ struct target *target = bank->target;
+ struct psoc4_flash_bank *psoc4_info = bank->driver_priv;
+
+ uint32_t prot_addr = PSOC4_SFLASH_MACRO;
+ uint32_t protection;
+ int i, s;
+ int num_bits;
+ int retval = ERROR_OK;
+
+ num_bits = bank->num_sectors;
+
+ for (i = 0; i < num_bits; i += 32) {
+ retval = target_read_u32(target, prot_addr, &protection);
+ if (retval != ERROR_OK)
+ return retval;
+
+ prot_addr += 4;
+
+ for (s = 0; s < 32; s++) {
+ if (i + s >= num_bits)
+ break;
+ bank->sectors[i + s].is_protected = (protection & (1 << s)) ? 1 : 0;
+ }
+ }
+
+ retval = psoc4_get_silicon_id(target, NULL, &(psoc4_info->chip_protection));
+ return retval;
+}
+
+
+static int psoc4_mass_erase(struct flash_bank *bank)
+{
+ struct target *target = bank->target;
+ int i;
+
+ if (bank->target->state != TARGET_HALTED) {
+ LOG_ERROR("Target not halted");
+ return ERROR_TARGET_NOT_HALTED;
+ }
+
+ /* Call "Erase All" system ROM API */
+ uint32_t param;
+ int retval = psoc4_sysreq(target, PSOC4_CMD_ERASE_ALL,
+ 0,
+ ¶m, sizeof(param));
+
+ if (retval == ERROR_OK)
+ /* set all sectors as erased */
+ for (i = 0; i < bank->num_sectors; i++)
+ bank->sectors[i].is_erased = 1;
+
+ return retval;
+}
+
+
+static int psoc4_erase(struct flash_bank *bank, int first, int last)
+{
+ struct psoc4_flash_bank *psoc4_info = bank->driver_priv;
+ if (psoc4_info->cmd_program_row == PSOC4_CMD_WRITE_ROW) {
+ LOG_INFO("Autoerase enabled, erase command ignored");
+ return ERROR_OK;
+ }
+
+ if ((first == 0) && (last == (bank->num_sectors - 1)))
+ return psoc4_mass_erase(bank);
+
+ LOG_ERROR("Only mass erase available");
+
+ return ERROR_FAIL;
+}
+
+
+static int psoc4_protect(struct flash_bank *bank, int set, int first, int last)
+{
+ struct target *target = bank->target;
+ struct psoc4_flash_bank *psoc4_info = bank->driver_priv;
+
+ if (psoc4_info->probed == 0)
+ return ERROR_FAIL;
+
+ if (target->state != TARGET_HALTED) {
+ LOG_ERROR("Target not halted");
+ return ERROR_TARGET_NOT_HALTED;
+ }
+
+ uint32_t *sysrq_buffer = NULL;
+ int retval;
+ int num_bits = bank->num_sectors;
+ const int param_sz = 8;
+ int prot_sz = num_bits / 8;
+ int chip_prot = PSOC4_CHIP_PROT_OPEN;
+ int flash_macro = 0; /* PSoC 42xx has only macro 0 */
+ int i;
+
+ sysrq_buffer = calloc(1, param_sz + prot_sz);
+ if (sysrq_buffer == NULL) {
+ LOG_ERROR("no memory for row buffer");
+ return ERROR_FAIL;
+ }
+
+ for (i = first; i < num_bits && i <= last; i++)
+ bank->sectors[i].is_protected = set;
+
+ uint32_t *p = sysrq_buffer + 2;
+ for (i = 0; i < num_bits; i++) {
+ if (bank->sectors[i].is_protected)
+ p[i / 32] |= 1 << (i % 32);
+ }
+
+ /* Call "Load Latch" system ROM API */
+ sysrq_buffer[1] = prot_sz - 1;
+ retval = psoc4_sysreq(target, PSOC4_CMD_LOAD_LATCH,
+ 0, /* Byte number in latch from what to write */
+ sysrq_buffer, param_sz + psoc4_info->row_size);
+ if (retval != ERROR_OK)
+ goto cleanup;
+
+ /* Call "Write Protection" system ROM API */
+ retval = psoc4_sysreq(target, PSOC4_CMD_WRITE_PROTECTION,
+ chip_prot | (flash_macro << 8), NULL, 0);
+cleanup:
+ if (retval != ERROR_OK)
+ psoc4_protect_check(bank);
+
+ if (sysrq_buffer)
+ free(sysrq_buffer);
+
+ return retval;
+}
+
+
+COMMAND_HANDLER(psoc4_handle_flash_autoerase_command)
+{
+ if (CMD_ARGC < 1)
+ return ERROR_COMMAND_SYNTAX_ERROR;
+
+ struct flash_bank *bank;
+ int retval = CALL_COMMAND_HANDLER(flash_command_get_bank, 0, &bank);
+ if (ERROR_OK != retval)
+ return retval;
+
+ struct psoc4_flash_bank *psoc4_info = bank->driver_priv;
+ bool enable = psoc4_info->cmd_program_row == PSOC4_CMD_WRITE_ROW;
+
+ if (CMD_ARGC >= 2)
+ COMMAND_PARSE_ON_OFF(CMD_ARGV[1], enable);
+
+ if (enable) {
+ psoc4_info->cmd_program_row = PSOC4_CMD_WRITE_ROW;
+ LOG_INFO("Flash auto-erase enabled, non mass erase commands will be ignored.");
+ } else {
+ psoc4_info->cmd_program_row = PSOC4_CMD_PROGRAM_ROW;
+ LOG_INFO("Flash auto-erase disabled. Use psoc mass_erase before flash programming.");
+ }
+
+ return retval;
+}
+
+
+static int psoc4_write(struct flash_bank *bank, const uint8_t *buffer,
+ uint32_t offset, uint32_t count)
+{
+ struct psoc4_flash_bank *psoc4_info = bank->driver_priv;
+ struct target *target = bank->target;
+ uint32_t *sysrq_buffer = NULL;
+ int retval = ERROR_OK;
+ const int param_sz = 8;
+
+ if (bank->target->state != TARGET_HALTED) {
+ LOG_ERROR("Target not halted");
+ return ERROR_TARGET_NOT_HALTED;
+ }
+
+ if (offset & 0x1) {
+ LOG_ERROR("offset 0x%" PRIx32 " breaks required 2-byte alignment", offset);
+ return ERROR_FLASH_DST_BREAKS_ALIGNMENT;
+ }
+
+ sysrq_buffer = malloc(param_sz + psoc4_info->row_size);
+ if (sysrq_buffer == NULL) {
+ LOG_ERROR("no memory for row buffer");
+ return ERROR_FAIL;
+ }
+
+ uint8_t *row_buffer = (uint8_t *)sysrq_buffer + param_sz;
+ uint32_t row_num = offset / psoc4_info->row_size;
+ uint32_t row_offset = offset - row_num * psoc4_info->row_size;
+ if (row_offset)
+ memset(row_buffer, 0, row_offset);
+
+ bool save_poll = jtag_poll_get_enabled();
+ jtag_poll_set_enabled(false);
+
+ while (count) {
+ uint32_t chunk_size = psoc4_info->row_size - row_offset;
+ if (chunk_size > count) {
+ chunk_size = count;
+ memset(row_buffer + chunk_size, 0, psoc4_info->row_size - chunk_size);
+ }
+ memcpy(row_buffer + row_offset, buffer, chunk_size);
+ LOG_DEBUG("offset / row: 0x%" PRIx32 " / %d size %d",
+ offset, row_offset, chunk_size);
+
+ /* Call "Load Latch" system ROM API */
+ sysrq_buffer[1] = psoc4_info->row_size - 1;
+ retval = psoc4_sysreq(target, PSOC4_CMD_LOAD_LATCH,
+ 0, /* Byte number in latch from what to write */
+ sysrq_buffer, param_sz + psoc4_info->row_size);
+ if (retval != ERROR_OK)
+ goto cleanup;
+
+ /* Call "Program Row" or "Write Row" system ROM API */
+ uint32_t sysrq_param;
+ retval = psoc4_sysreq(target, psoc4_info->cmd_program_row,
+ row_num & 0xffff,
+ &sysrq_param, sizeof(sysrq_param));
+ if (retval != ERROR_OK)
+ goto cleanup;
+
+ buffer += chunk_size;
+ row_num++;
+ row_offset = 0;
+ count -= chunk_size;
+ }
+
+cleanup:
+ jtag_poll_set_enabled(save_poll);
+
+ if (sysrq_buffer)
+ free(sysrq_buffer);
+
+ return retval;
+}
+
+
+static int psoc4_probe(struct flash_bank *bank)
+{
+ struct psoc4_flash_bank *psoc4_info = bank->driver_priv;
+ struct target *target = bank->target;
+ int i;
+ uint16_t flash_size_in_kb = 0;
+ uint16_t max_flash_size_in_kb;
+ uint32_t cpu_id;
+ uint32_t silicon_id;
+ int row_size;
+ uint32_t base_address = 0x00000000;
+ uint8_t protection;
+
+ if (target->state != TARGET_HALTED) {
+ LOG_ERROR("Target not halted");
+ return ERROR_TARGET_NOT_HALTED;
+ }
+
+ psoc4_info->probed = 0;
+ psoc4_info->cmd_program_row = PSOC4_CMD_PROGRAM_ROW;
+
+ /* Get the CPUID from the ARM Core
+ * http://infocenter.arm.com/help/topic/com.arm.doc.ddi0432c/DDI0432C_cortex_m0_r0p0_trm.pdf 4.2.1 */
+ int retval = target_read_u32(target, 0xE000ED00, &cpu_id);
+ if (retval != ERROR_OK)
+ return retval;
+
+ LOG_DEBUG("cpu id = 0x%08" PRIx32 "", cpu_id);
+
+ /* set page size, protection granularity and max flash size depending on family */
+ switch ((cpu_id >> 4) & 0xFFF) {
+ case 0xc20: /* M0 -> PSoC4 */
+ row_size = 128;
+ max_flash_size_in_kb = 32;
+ break;
+ default:
+ LOG_WARNING("Cannot identify target as a PSoC 4 family.");
+ return ERROR_FAIL;
+ }
+
+ uint32_t spcif_geometry;
+ retval = target_read_u32(target, PSOC4_SPCIF_GEOMETRY, &spcif_geometry);
+ if (retval == ERROR_OK) {
+ row_size = 128 * ((spcif_geometry >> 22) & 3);
+ flash_size_in_kb = (spcif_geometry & 0xffff) * 256 / 1024;
+ LOG_INFO("SPCIF geometry: %d kb flash, row %d bytes.", flash_size_in_kb, row_size);
+ }
+
+ /* ST-Link v2 has some problem reading PSOC4_SPCIF_GEOMETRY
+ and an error is reported late. Dummy read gets this error. */
+ uint32_t dummy;
+ target_read_u32(target, PSOC4_CPUSS_SYSREQ, &dummy);
+
+ /* get silicon ID from target. */
+ retval = psoc4_get_silicon_id(target, &silicon_id, &protection);
+ if (retval != ERROR_OK)
+ return retval;
+
+ const struct psoc4_chip_details *details = psoc4_details_by_id(silicon_id);
+ if (details) {
+ LOG_INFO("%s device detected.", details->type);
+ if (flash_size_in_kb == 0)
+ flash_size_in_kb = details->flash_size_in_kb;
+ else if (flash_size_in_kb != details->flash_size_in_kb)
+ LOG_ERROR("Flash size mismatch");
+ }
+
+ psoc4_info->row_size = row_size;
+ psoc4_info->silicon_id = silicon_id;
+ psoc4_info->chip_protection = protection;
+
+ /* failed reading flash size or flash size invalid (early silicon),
+ * default to max target family */
+ if (retval != ERROR_OK || flash_size_in_kb == 0xffff || flash_size_in_kb == 0) {
+ LOG_WARNING("PSoC 4 flash size failed, probe inaccurate - assuming %dk flash",
+ max_flash_size_in_kb);
+ flash_size_in_kb = max_flash_size_in_kb;
+ }
+
+ /* if the user sets the size manually then ignore the probed value
+ * this allows us to work around devices that have a invalid flash size register value */
+ if (psoc4_info->user_bank_size) {
+ LOG_INFO("ignoring flash probed value, using configured bank size");
+ flash_size_in_kb = psoc4_info->user_bank_size / 1024;
+ }
+
+ LOG_INFO("flash size = %d kbytes", flash_size_in_kb);
+
+ /* did we assign flash size? */
+ assert(flash_size_in_kb != 0xffff);
+
+ /* calculate numbers of pages */
+ int num_rows = flash_size_in_kb * 1024 / row_size;
+
+ /* check that calculation result makes sense */
+ assert(num_rows > 0);
+
+ if (bank->sectors) {
+ free(bank->sectors);
+ bank->sectors = NULL;
+ }
+
+ bank->base = base_address;
+ bank->size = (num_rows * row_size);
+ bank->num_sectors = num_rows;
+ bank->sectors = malloc(sizeof(struct flash_sector) * num_rows);
+
+ for (i = 0; i < num_rows; i++) {
+ bank->sectors[i].offset = i * row_size;
+ bank->sectors[i].size = row_size;
+ bank->sectors[i].is_erased = -1;
+ bank->sectors[i].is_protected = 1;
+ }
+
+ LOG_INFO("flash bank set %d rows", num_rows);
+ psoc4_info->probed = 1;
+
+ return ERROR_OK;
+}
+
+static int psoc4_auto_probe(struct flash_bank *bank)
+{
+ struct psoc4_flash_bank *psoc4_info = bank->driver_priv;
+ if (psoc4_info->probed)
+ return ERROR_OK;
+ return psoc4_probe(bank);
+}
+
+
+static int get_psoc4_info(struct flash_bank *bank, char *buf, int buf_size)
+{
+ struct psoc4_flash_bank *psoc4_info = bank->driver_priv;
+ int printed = 0;
+
+ if (psoc4_info->probed == 0)
+ return ERROR_FAIL;
+
+ const struct psoc4_chip_details *details = psoc4_details_by_id(psoc4_info->silicon_id);
+
+ if (details)
+ printed = snprintf(buf, buf_size, "PSoC 4 %s rev 0x%04" PRIx16 " package %s",
+ details->type, psoc4_info->silicon_id & 0xffff, details->package);
+ else
+ printed = snprintf(buf, buf_size, "PSoC 4 silicon id 0x%08" PRIx32 "",
+ psoc4_info->silicon_id);
+
+ buf += printed;
+ buf_size -= printed;
+
+ const char *prot_txt = psoc4_decode_chip_protection(psoc4_info->chip_protection);
+ snprintf(buf, buf_size, " flash %d kb %s", bank->size / 1024, prot_txt);
+ return ERROR_OK;
+}
+
+
+COMMAND_HANDLER(psoc4_handle_mass_erase_command)
+{
+ if (CMD_ARGC < 1)
+ return ERROR_COMMAND_SYNTAX_ERROR;
+
+ struct flash_bank *bank;
+ int retval = CALL_COMMAND_HANDLER(flash_command_get_bank, 0, &bank);
+ if (ERROR_OK != retval)
+ return retval;
+
+ retval = psoc4_mass_erase(bank);
+ if (retval == ERROR_OK)
+ command_print(CMD_CTX, "psoc mass erase complete");
+ else
+ command_print(CMD_CTX, "psoc mass erase failed");
+
+ return retval;
+}
+
+
+static const struct command_registration psoc4_exec_command_handlers[] = {
+ {
+ .name = "mass_erase",
+ .handler = psoc4_handle_mass_erase_command,
+ .mode = COMMAND_EXEC,
+ .usage = "bank_id",
+ .help = "Erase entire flash device.",
+ },
+ {
+ .name = "flash_autoerase",
+ .handler = psoc4_handle_flash_autoerase_command,
+ .mode = COMMAND_EXEC,
+ .usage = "bank_id on|off",
+ .help = "Set autoerase mode for flash bank.",
+ },
+ COMMAND_REGISTRATION_DONE
+};
+
+static const struct command_registration psoc4_command_handlers[] = {
+ {
+ .name = "psoc4",
+ .mode = COMMAND_ANY,
+ .help = "PSoC 4 flash command group",
+ .usage = "",
+ .chain = psoc4_exec_command_handlers,
+ },
+ COMMAND_REGISTRATION_DONE
+};
+
+struct flash_driver psoc4_flash = {
+ .name = "psoc4",
+ .commands = psoc4_command_handlers,
+ .flash_bank_command = psoc4_flash_bank_command,
+ .erase = psoc4_erase,
+ .protect = psoc4_protect,
+ .write = psoc4_write,
+ .read = default_flash_read,
+ .probe = psoc4_probe,
+ .auto_probe = psoc4_auto_probe,
+ .erase_check = default_flash_blank_check,
+ .protect_check = psoc4_protect_check,
+ .info = get_psoc4_info,
+};
Code Review / openocd.git / commitdiff