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// SPDX-License-Identifier: GPL-2.0-or-later
/*
* PSoC 5LP flash driver
*
* Copyright (c) 2016 Andreas Färber
*/
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include "imp.h"
#include <helper/time_support.h>
#include <target/armv7m.h>
#define PM_ACT_CFG0 0x400043A0
#define PM_ACT_CFG12 0x400043AC
#define SPC_CPU_DATA 0x40004720
#define SPC_SR 0x40004722
#define PRT1_PC2 0x4000500A
#define PHUB_CH0_BASIC_CFG 0x40007010
#define PHUB_CH0_ACTION 0x40007014
#define PHUB_CH0_BASIC_STATUS 0x40007018
#define PHUB_CH1_BASIC_CFG 0x40007020
#define PHUB_CH1_ACTION 0x40007024
#define PHUB_CH1_BASIC_STATUS 0x40007028
#define PHUB_CFGMEM0_CFG0 0x40007600
#define PHUB_CFGMEM0_CFG1 0x40007604
#define PHUB_CFGMEM1_CFG0 0x40007608
#define PHUB_CFGMEM1_CFG1 0x4000760C
#define PHUB_TDMEM0_ORIG_TD0 0x40007800
#define PHUB_TDMEM0_ORIG_TD1 0x40007804
#define PHUB_TDMEM1_ORIG_TD0 0x40007808
#define PHUB_TDMEM1_ORIG_TD1 0x4000780C
#define PANTHER_DEVICE_ID 0x4008001C
/* NVL is not actually mapped to the Cortex-M address space
* As we need a base address different from other banks in the device
* we use the address of NVL programming data in Cypress images */
#define NVL_META_BASE 0x90000000
#define PM_ACT_CFG12_EN_EE (1 << 4)
#define SPC_KEY1 0xB6
#define SPC_KEY2 0xD3
#define SPC_LOAD_BYTE 0x00
#define SPC_LOAD_MULTI_BYTE 0x01
#define SPC_LOAD_ROW 0x02
#define SPC_READ_BYTE 0x03
#define SPC_READ_MULTI_BYTE 0x04
#define SPC_WRITE_ROW 0x05
#define SPC_WRITE_USER_NVL 0x06
#define SPC_PRG_ROW 0x07
#define SPC_ERASE_SECTOR 0x08
#define SPC_ERASE_ALL 0x09
#define SPC_READ_HIDDEN_ROW 0x0A
#define SPC_PROGRAM_PROTECT_ROW 0x0B
#define SPC_GET_CHECKSUM 0x0C
#define SPC_GET_TEMP 0x0E
#define SPC_READ_VOLATILE_BYTE 0x10
#define SPC_ARRAY_ALL 0x3F
#define SPC_ARRAY_EEPROM 0x40
#define SPC_ARRAY_NVL_USER 0x80
#define SPC_ARRAY_NVL_WO 0xF8
#define SPC_ROW_PROTECTION 0
#define SPC_OPCODE_LEN 3
#define SPC_SR_DATA_READY (1 << 0)
#define SPC_SR_IDLE (1 << 1)
#define PM_ACT_CFG0_EN_CLK_SPC (1 << 3)
#define PHUB_CHX_BASIC_CFG_EN (1 << 0)
#define PHUB_CHX_BASIC_CFG_WORK_SEP (1 << 5)
#define PHUB_CHX_ACTION_CPU_REQ (1 << 0)
#define PHUB_CFGMEMX_CFG0 (1 << 7)
#define PHUB_TDMEMX_ORIG_TD0_NEXT_TD_PTR_LAST (0xff << 16)
#define PHUB_TDMEMX_ORIG_TD0_INC_SRC_ADDR (1 << 24)
#define NVL_3_ECCEN (1 << 3)
#define ROW_SIZE 256
#define ROW_ECC_SIZE 32
#define ROWS_PER_SECTOR 64
#define SECTOR_SIZE (ROWS_PER_SECTOR * ROW_SIZE)
#define ROWS_PER_BLOCK 256
#define BLOCK_SIZE (ROWS_PER_BLOCK * ROW_SIZE)
#define SECTORS_PER_BLOCK (BLOCK_SIZE / SECTOR_SIZE)
#define EEPROM_ROW_SIZE 16
#define EEPROM_SECTOR_SIZE (ROWS_PER_SECTOR * EEPROM_ROW_SIZE)
#define EEPROM_BLOCK_SIZE (ROWS_PER_BLOCK * EEPROM_ROW_SIZE)
#define PART_NUMBER_LEN (17 + 1)
struct psoc5lp_device {
uint32_t id;
unsigned fam;
unsigned speed_mhz;
unsigned flash_kb;
unsigned eeprom_kb;
};
/*
* Device information collected from datasheets.
* Different temperature ranges (C/I/Q/A) may share IDs, not differing otherwise.
*/
static const struct psoc5lp_device psoc5lp_devices[] = {
/* CY8C58LP Family Datasheet */
{ .id = 0x2E11F069, .fam = 8, .speed_mhz = 67, .flash_kb = 256, .eeprom_kb = 2 },
{ .id = 0x2E120069, .fam = 8, .speed_mhz = 67, .flash_kb = 256, .eeprom_kb = 2 },
{ .id = 0x2E123069, .fam = 8, .speed_mhz = 67, .flash_kb = 256, .eeprom_kb = 2 },
{ .id = 0x2E124069, .fam = 8, .speed_mhz = 67, .flash_kb = 256, .eeprom_kb = 2 },
{ .id = 0x2E126069, .fam = 8, .speed_mhz = 67, .flash_kb = 256, .eeprom_kb = 2 },
{ .id = 0x2E127069, .fam = 8, .speed_mhz = 67, .flash_kb = 256, .eeprom_kb = 2 },
{ .id = 0x2E117069, .fam = 8, .speed_mhz = 67, .flash_kb = 128, .eeprom_kb = 2 },
{ .id = 0x2E118069, .fam = 8, .speed_mhz = 67, .flash_kb = 128, .eeprom_kb = 2 },
{ .id = 0x2E119069, .fam = 8, .speed_mhz = 67, .flash_kb = 128, .eeprom_kb = 2 },
{ .id = 0x2E11C069, .fam = 8, .speed_mhz = 67, .flash_kb = 128, .eeprom_kb = 2 },
{ .id = 0x2E114069, .fam = 8, .speed_mhz = 67, .flash_kb = 64, .eeprom_kb = 2 },
{ .id = 0x2E115069, .fam = 8, .speed_mhz = 67, .flash_kb = 64, .eeprom_kb = 2 },
{ .id = 0x2E116069, .fam = 8, .speed_mhz = 67, .flash_kb = 64, .eeprom_kb = 2 },
{ .id = 0x2E160069, .fam = 8, .speed_mhz = 80, .flash_kb = 256, .eeprom_kb = 2 },
/* '' */
{ .id = 0x2E161069, .fam = 8, .speed_mhz = 80, .flash_kb = 256, .eeprom_kb = 2 },
/* '' */
{ .id = 0x2E1D2069, .fam = 8, .speed_mhz = 80, .flash_kb = 256, .eeprom_kb = 2 },
{ .id = 0x2E1D6069, .fam = 8, .speed_mhz = 80, .flash_kb = 256, .eeprom_kb = 2 },
/* CY8C56LP Family Datasheet */
{ .id = 0x2E10A069, .fam = 6, .speed_mhz = 67, .flash_kb = 256, .eeprom_kb = 2 },
{ .id = 0x2E10D069, .fam = 6, .speed_mhz = 67, .flash_kb = 256, .eeprom_kb = 2 },
{ .id = 0x2E10E069, .fam = 6, .speed_mhz = 67, .flash_kb = 256, .eeprom_kb = 2 },
{ .id = 0x2E106069, .fam = 6, .speed_mhz = 67, .flash_kb = 128, .eeprom_kb = 2 },
{ .id = 0x2E108069, .fam = 6, .speed_mhz = 67, .flash_kb = 128, .eeprom_kb = 2 },
{ .id = 0x2E109069, .fam = 6, .speed_mhz = 67, .flash_kb = 128, .eeprom_kb = 2 },
{ .id = 0x2E101069, .fam = 6, .speed_mhz = 67, .flash_kb = 64, .eeprom_kb = 2 },
{ .id = 0x2E104069, .fam = 6, .speed_mhz = 67, .flash_kb = 64, .eeprom_kb = 2 },
/* '' */
{ .id = 0x2E105069, .fam = 6, .speed_mhz = 67, .flash_kb = 64, .eeprom_kb = 2 },
{ .id = 0x2E128069, .fam = 6, .speed_mhz = 67, .flash_kb = 128, .eeprom_kb = 2 },
/* '' */
{ .id = 0x2E122069, .fam = 6, .speed_mhz = 67, .flash_kb = 256, .eeprom_kb = 2 },
{ .id = 0x2E129069, .fam = 6, .speed_mhz = 67, .flash_kb = 128, .eeprom_kb = 2 },
{ .id = 0x2E163069, .fam = 6, .speed_mhz = 80, .flash_kb = 256, .eeprom_kb = 2 },
{ .id = 0x2E156069, .fam = 6, .speed_mhz = 80, .flash_kb = 256, .eeprom_kb = 2 },
{ .id = 0x2E1D3069, .fam = 6, .speed_mhz = 80, .flash_kb = 256, .eeprom_kb = 2 },
/* CY8C54LP Family Datasheet */
{ .id = 0x2E11A069, .fam = 4, .speed_mhz = 67, .flash_kb = 256, .eeprom_kb = 2 },
{ .id = 0x2E16A069, .fam = 4, .speed_mhz = 67, .flash_kb = 256, .eeprom_kb = 2 },
{ .id = 0x2E12A069, .fam = 4, .speed_mhz = 67, .flash_kb = 256, .eeprom_kb = 2 },
{ .id = 0x2E103069, .fam = 4, .speed_mhz = 67, .flash_kb = 128, .eeprom_kb = 2 },
{ .id = 0x2E16C069, .fam = 4, .speed_mhz = 67, .flash_kb = 128, .eeprom_kb = 2 },
{ .id = 0x2E102069, .fam = 4, .speed_mhz = 67, .flash_kb = 64, .eeprom_kb = 2 },
{ .id = 0x2E148069, .fam = 4, .speed_mhz = 67, .flash_kb = 64, .eeprom_kb = 2 },
{ .id = 0x2E155069, .fam = 4, .speed_mhz = 67, .flash_kb = 64, .eeprom_kb = 2 },
{ .id = 0x2E16B069, .fam = 4, .speed_mhz = 67, .flash_kb = 64, .eeprom_kb = 2 },
{ .id = 0x2E12B069, .fam = 4, .speed_mhz = 67, .flash_kb = 32, .eeprom_kb = 2 },
{ .id = 0x2E168069, .fam = 4, .speed_mhz = 67, .flash_kb = 32, .eeprom_kb = 2 },
{ .id = 0x2E178069, .fam = 4, .speed_mhz = 80, .flash_kb = 256, .eeprom_kb = 2 },
{ .id = 0x2E15D069, .fam = 4, .speed_mhz = 80, .flash_kb = 256, .eeprom_kb = 2 },
{ .id = 0x2E1D4069, .fam = 4, .speed_mhz = 80, .flash_kb = 256, .eeprom_kb = 2 },
/* CY8C52LP Family Datasheet */
{ .id = 0x2E11E069, .fam = 2, .speed_mhz = 67, .flash_kb = 256, .eeprom_kb = 2 },
{ .id = 0x2E12F069, .fam = 2, .speed_mhz = 67, .flash_kb = 256, .eeprom_kb = 2 },
{ .id = 0x2E133069, .fam = 2, .speed_mhz = 67, .flash_kb = 128, .eeprom_kb = 2 },
{ .id = 0x2E159069, .fam = 2, .speed_mhz = 67, .flash_kb = 128, .eeprom_kb = 2 },
{ .id = 0x2E11D069, .fam = 2, .speed_mhz = 67, .flash_kb = 64, .eeprom_kb = 2 },
{ .id = 0x2E121069, .fam = 2, .speed_mhz = 67, .flash_kb = 64, .eeprom_kb = 2 },
{ .id = 0x2E184069, .fam = 2, .speed_mhz = 67, .flash_kb = 64, .eeprom_kb = 2 },
{ .id = 0x2E196069, .fam = 2, .speed_mhz = 67, .flash_kb = 64, .eeprom_kb = 2 },
{ .id = 0x2E132069, .fam = 2, .speed_mhz = 67, .flash_kb = 32, .eeprom_kb = 2 },
{ .id = 0x2E138069, .fam = 2, .speed_mhz = 67, .flash_kb = 32, .eeprom_kb = 2 },
{ .id = 0x2E13A069, .fam = 2, .speed_mhz = 67, .flash_kb = 32, .eeprom_kb = 2 },
{ .id = 0x2E152069, .fam = 2, .speed_mhz = 67, .flash_kb = 32, .eeprom_kb = 2 },
{ .id = 0x2E15F069, .fam = 2, .speed_mhz = 80, .flash_kb = 256, .eeprom_kb = 2 },
{ .id = 0x2E15A069, .fam = 2, .speed_mhz = 80, .flash_kb = 256, .eeprom_kb = 2 },
{ .id = 0x2E1D5069, .fam = 2, .speed_mhz = 80, .flash_kb = 256, .eeprom_kb = 2 },
};
static void psoc5lp_get_part_number(const struct psoc5lp_device *dev, char *str)
{
strcpy(str, "CY8Cabcdefg-LPxxx");
str[4] = '5';
str[5] = '0' + dev->fam;
switch (dev->speed_mhz) {
case 67:
str[6] = '6';
break;
case 80:
str[6] = '8';
break;
default:
str[6] = '?';
}
switch (dev->flash_kb) {
case 32:
str[7] = '5';
break;
case 64:
str[7] = '6';
break;
case 128:
str[7] = '7';
break;
case 256:
str[7] = '8';
break;
default:
str[7] = '?';
}
/* Package does not matter. */
str[8] = 'x';
str[9] = 'x';
/* Temperate range cannot uniquely be identified. */
str[10] = 'x';
}
static int psoc5lp_get_device_id(struct target *target, uint32_t *id)
{
int retval;
retval = target_read_u32(target, PANTHER_DEVICE_ID, id); /* dummy read */
if (retval != ERROR_OK)
return retval;
retval = target_read_u32(target, PANTHER_DEVICE_ID, id);
return retval;
}
static int psoc5lp_find_device(struct target *target,
const struct psoc5lp_device **device)
{
uint32_t device_id;
unsigned i;
int retval;
*device = NULL;
retval = psoc5lp_get_device_id(target, &device_id);
if (retval != ERROR_OK)
return retval;
LOG_DEBUG("PANTHER_DEVICE_ID = 0x%08" PRIX32, device_id);
for (i = 0; i < ARRAY_SIZE(psoc5lp_devices); i++) {
if (psoc5lp_devices[i].id == device_id) {
*device = &psoc5lp_devices[i];
return ERROR_OK;
}
}
LOG_ERROR("Device 0x%08" PRIX32 " not supported", device_id);
return ERROR_FLASH_OPER_UNSUPPORTED;
}
static int psoc5lp_spc_enable_clock(struct target *target)
{
int retval;
uint8_t pm_act_cfg0;
retval = target_read_u8(target, PM_ACT_CFG0, &pm_act_cfg0);
if (retval != ERROR_OK) {
LOG_ERROR("Cannot read PM_ACT_CFG0");
return retval;
}
if (pm_act_cfg0 & PM_ACT_CFG0_EN_CLK_SPC)
return ERROR_OK; /* clock already enabled */
retval = target_write_u8(target, PM_ACT_CFG0, pm_act_cfg0 | PM_ACT_CFG0_EN_CLK_SPC);
if (retval != ERROR_OK)
LOG_ERROR("Cannot enable SPC clock");
return retval;
}
static int psoc5lp_spc_write_opcode(struct target *target, uint8_t opcode)
{
int retval;
retval = target_write_u8(target, SPC_CPU_DATA, SPC_KEY1);
if (retval != ERROR_OK)
return retval;
retval = target_write_u8(target, SPC_CPU_DATA, SPC_KEY2 + opcode);
if (retval != ERROR_OK)
return retval;
retval = target_write_u8(target, SPC_CPU_DATA, opcode);
return retval;
}
static void psoc5lp_spc_write_opcode_buffer(struct target *target,
uint8_t *buf, uint8_t opcode)
{
buf[0] = SPC_KEY1;
buf[1] = SPC_KEY2 + opcode;
buf[2] = opcode;
}
static int psoc5lp_spc_busy_wait_data(struct target *target)
{
int64_t endtime;
uint8_t sr;
int retval;
retval = target_read_u8(target, SPC_SR, &sr); /* dummy read */
if (retval != ERROR_OK)
return retval;
endtime = timeval_ms() + 1000; /* 1 second timeout */
do {
alive_sleep(1);
retval = target_read_u8(target, SPC_SR, &sr);
if (retval != ERROR_OK)
return retval;
if (sr == SPC_SR_DATA_READY)
return ERROR_OK;
} while (timeval_ms() < endtime);
return ERROR_FLASH_OPERATION_FAILED;
}
static int psoc5lp_spc_busy_wait_idle(struct target *target)
{
int64_t endtime;
uint8_t sr;
int retval;
retval = target_read_u8(target, SPC_SR, &sr); /* dummy read */
if (retval != ERROR_OK)
return retval;
endtime = timeval_ms() + 1000; /* 1 second timeout */
do {
alive_sleep(1);
retval = target_read_u8(target, SPC_SR, &sr);
if (retval != ERROR_OK)
return retval;
if (sr == SPC_SR_IDLE)
return ERROR_OK;
} while (timeval_ms() < endtime);
return ERROR_FLASH_OPERATION_FAILED;
}
static int psoc5lp_spc_load_byte(struct target *target,
uint8_t array_id, uint8_t offset, uint8_t value)
{
int retval;
retval = psoc5lp_spc_write_opcode(target, SPC_LOAD_BYTE);
if (retval != ERROR_OK)
return retval;
retval = target_write_u8(target, SPC_CPU_DATA, array_id);
if (retval != ERROR_OK)
return retval;
retval = target_write_u8(target, SPC_CPU_DATA, offset);
if (retval != ERROR_OK)
return retval;
retval = target_write_u8(target, SPC_CPU_DATA, value);
if (retval != ERROR_OK)
return retval;
retval = psoc5lp_spc_busy_wait_idle(target);
if (retval != ERROR_OK)
return retval;
return ERROR_OK;
}
static int psoc5lp_spc_load_row(struct target *target,
uint8_t array_id, const uint8_t *data, unsigned row_size)
{
unsigned i;
int retval;
retval = psoc5lp_spc_write_opcode(target, SPC_LOAD_ROW);
if (retval != ERROR_OK)
return retval;
retval = target_write_u8(target, SPC_CPU_DATA, array_id);
if (retval != ERROR_OK)
return retval;
for (i = 0; i < row_size; i++) {
retval = target_write_u8(target, SPC_CPU_DATA, data[i]);
if (retval != ERROR_OK)
return retval;
}
retval = psoc5lp_spc_busy_wait_idle(target);
if (retval != ERROR_OK)
return retval;
return ERROR_OK;
}
static int psoc5lp_spc_read_byte(struct target *target,
uint8_t array_id, uint8_t offset, uint8_t *data)
{
int retval;
retval = psoc5lp_spc_write_opcode(target, SPC_READ_BYTE);
if (retval != ERROR_OK)
return retval;
retval = target_write_u8(target, SPC_CPU_DATA, array_id);
if (retval != ERROR_OK)
return retval;
retval = target_write_u8(target, SPC_CPU_DATA, offset);
if (retval != ERROR_OK)
return retval;
retval = psoc5lp_spc_busy_wait_data(target);
if (retval != ERROR_OK)
return retval;
retval = target_read_u8(target, SPC_CPU_DATA, data);
if (retval != ERROR_OK)
return retval;
retval = psoc5lp_spc_busy_wait_idle(target);
if (retval != ERROR_OK)
return retval;
return ERROR_OK;
}
static int psoc5lp_spc_write_row(struct target *target,
uint8_t array_id, uint16_t row_id, const uint8_t *temp)
{
int retval;
retval = psoc5lp_spc_write_opcode(target, SPC_WRITE_ROW);
if (retval != ERROR_OK)
return retval;
retval = target_write_u8(target, SPC_CPU_DATA, array_id);
if (retval != ERROR_OK)
return retval;
retval = target_write_u8(target, SPC_CPU_DATA, row_id >> 8);
if (retval != ERROR_OK)
return retval;
retval = target_write_u8(target, SPC_CPU_DATA, row_id & 0xff);
if (retval != ERROR_OK)
return retval;
retval = target_write_u8(target, SPC_CPU_DATA, temp[0]);
if (retval != ERROR_OK)
return retval;
retval = target_write_u8(target, SPC_CPU_DATA, temp[1]);
if (retval != ERROR_OK)
return retval;
retval = psoc5lp_spc_busy_wait_idle(target);
if (retval != ERROR_OK)
return retval;
return ERROR_OK;
}
static int psoc5lp_spc_write_user_nvl(struct target *target,
uint8_t array_id)
{
int retval;
retval = psoc5lp_spc_write_opcode(target, SPC_WRITE_USER_NVL);
if (retval != ERROR_OK)
return retval;
retval = target_write_u8(target, SPC_CPU_DATA, array_id);
if (retval != ERROR_OK)
return retval;
retval = psoc5lp_spc_busy_wait_idle(target);
if (retval != ERROR_OK)
return retval;
return ERROR_OK;
}
static int psoc5lp_spc_erase_sector(struct target *target,
uint8_t array_id, uint8_t row_id)
{
int retval;
retval = psoc5lp_spc_write_opcode(target, SPC_ERASE_SECTOR);
if (retval != ERROR_OK)
return retval;
retval = target_write_u8(target, SPC_CPU_DATA, array_id);
if (retval != ERROR_OK)
return retval;
retval = target_write_u8(target, SPC_CPU_DATA, row_id);
if (retval != ERROR_OK)
return retval;
retval = psoc5lp_spc_busy_wait_idle(target);
if (retval != ERROR_OK)
return retval;
return ERROR_OK;
}
static int psoc5lp_spc_erase_all(struct target *target)
{
int retval;
retval = psoc5lp_spc_write_opcode(target, SPC_ERASE_ALL);
if (retval != ERROR_OK)
return retval;
retval = psoc5lp_spc_busy_wait_idle(target);
if (retval != ERROR_OK)
return retval;
return ERROR_OK;
}
static int psoc5lp_spc_read_hidden_row(struct target *target,
uint8_t array_id, uint8_t row_id, uint8_t *data)
{
int i, retval;
retval = psoc5lp_spc_write_opcode(target, SPC_READ_HIDDEN_ROW);
if (retval != ERROR_OK)
return retval;
retval = target_write_u8(target, SPC_CPU_DATA, array_id);
if (retval != ERROR_OK)
return retval;
retval = target_write_u8(target, SPC_CPU_DATA, row_id);
if (retval != ERROR_OK)
return retval;
retval = psoc5lp_spc_busy_wait_data(target);
if (retval != ERROR_OK)
return retval;
for (i = 0; i < ROW_SIZE; i++) {
retval = target_read_u8(target, SPC_CPU_DATA, &data[i]);
if (retval != ERROR_OK)
return retval;
}
retval = psoc5lp_spc_busy_wait_idle(target);
if (retval != ERROR_OK)
return retval;
return ERROR_OK;
}
static int psoc5lp_spc_get_temp(struct target *target, uint8_t samples,
uint8_t *data)
{
int retval;
retval = psoc5lp_spc_write_opcode(target, SPC_GET_TEMP);
if (retval != ERROR_OK)
return retval;
retval = target_write_u8(target, SPC_CPU_DATA, samples);
if (retval != ERROR_OK)
return retval;
retval = psoc5lp_spc_busy_wait_data(target);
if (retval != ERROR_OK)
return retval;
retval = target_read_u8(target, SPC_CPU_DATA, &data[0]);
if (retval != ERROR_OK)
return retval;
retval = target_read_u8(target, SPC_CPU_DATA, &data[1]);
if (retval != ERROR_OK)
return retval;
retval = psoc5lp_spc_busy_wait_idle(target);
if (retval != ERROR_OK)
return retval;
return ERROR_OK;
}
static int psoc5lp_spc_read_volatile_byte(struct target *target,
uint8_t array_id, uint8_t offset, uint8_t *data)
{
int retval;
retval = psoc5lp_spc_write_opcode(target, SPC_READ_VOLATILE_BYTE);
if (retval != ERROR_OK)
return retval;
retval = target_write_u8(target, SPC_CPU_DATA, array_id);
if (retval != ERROR_OK)
return retval;
retval = target_write_u8(target, SPC_CPU_DATA, offset);
if (retval != ERROR_OK)
return retval;
retval = psoc5lp_spc_busy_wait_data(target);
if (retval != ERROR_OK)
return retval;
retval = target_read_u8(target, SPC_CPU_DATA, data);
if (retval != ERROR_OK)
return retval;
retval = psoc5lp_spc_busy_wait_idle(target);
if (retval != ERROR_OK)
return retval;
return ERROR_OK;
}
/*
* NV Latch
*/
struct psoc5lp_nvl_flash_bank {
bool probed;
const struct psoc5lp_device *device;
};
static int psoc5lp_nvl_read(struct flash_bank *bank,
uint8_t *buffer, uint32_t offset, uint32_t count)
{
int retval;
retval = psoc5lp_spc_enable_clock(bank->target);
if (retval != ERROR_OK)
return retval;
while (count > 0) {
retval = psoc5lp_spc_read_byte(bank->target,
SPC_ARRAY_NVL_USER, offset, buffer);
if (retval != ERROR_OK)
return retval;
buffer++;
offset++;
count--;
}
return ERROR_OK;
}
static int psoc5lp_nvl_erase(struct flash_bank *bank, unsigned int first,
unsigned int last)
{
LOG_WARNING("There is no erase operation for NV Latches");
return ERROR_FLASH_OPER_UNSUPPORTED;
}
static int psoc5lp_nvl_erase_check(struct flash_bank *bank)
{
for (unsigned int i = 0; i < bank->num_sectors; i++)
bank->sectors[i].is_erased = 0;
return ERROR_OK;
}
static int psoc5lp_nvl_write(struct flash_bank *bank,
const uint8_t *buffer, uint32_t offset, uint32_t byte_count)
{
struct target *target = bank->target;
uint8_t *current_data, val;
bool write_required = false, pullup_needed = false, ecc_changed = false;
uint32_t i;
int retval;
if (offset != 0 || byte_count != bank->size) {
LOG_ERROR("NVL can only be written in whole");
return ERROR_FLASH_OPER_UNSUPPORTED;
}
current_data = calloc(1, bank->size);
if (!current_data)
return ERROR_FAIL;
retval = psoc5lp_nvl_read(bank, current_data, offset, byte_count);
if (retval != ERROR_OK) {
free(current_data);
return retval;
}
for (i = offset; i < byte_count; i++) {
if (current_data[i] != buffer[i]) {
write_required = true;
break;
}
}
if (((buffer[2] & 0x80) == 0x80) && ((current_data[0] & 0x0C) != 0x08))
pullup_needed = true;
if (((buffer[3] ^ current_data[3]) & 0x08) == 0x08)
ecc_changed = true;
free(current_data);
if (!write_required) {
LOG_INFO("Unchanged, skipping NVL write");
return ERROR_OK;
}
if (pullup_needed) {
retval = target_read_u8(target, PRT1_PC2, &val);
if (retval != ERROR_OK)
return retval;
val &= 0xF0;
val |= 0x05;
retval = target_write_u8(target, PRT1_PC2, val);
if (retval != ERROR_OK)
return retval;
}
for (i = offset; i < byte_count; i++) {
retval = psoc5lp_spc_load_byte(target,
SPC_ARRAY_NVL_USER, i, buffer[i]);
if (retval != ERROR_OK)
return retval;
retval = psoc5lp_spc_read_volatile_byte(target,
SPC_ARRAY_NVL_USER, i, &val);
if (retval != ERROR_OK)
return retval;
if (val != buffer[i]) {
LOG_ERROR("Failed to load NVL byte %" PRIu32 ": "
"expected 0x%02" PRIx8 ", read 0x%02" PRIx8,
i, buffer[i], val);
return ERROR_FLASH_OPERATION_FAILED;
}
}
retval = psoc5lp_spc_write_user_nvl(target, SPC_ARRAY_NVL_USER);
if (retval != ERROR_OK)
return retval;
if (ecc_changed) {
retval = target_call_reset_callbacks(target, RESET_INIT);
if (retval != ERROR_OK)
LOG_WARNING("Reset failed after enabling or disabling ECC");
}
return ERROR_OK;
}
static int psoc5lp_nvl_get_info_command(struct flash_bank *bank,
struct command_invocation *cmd)
{
struct psoc5lp_nvl_flash_bank *psoc_nvl_bank = bank->driver_priv;
char part_number[PART_NUMBER_LEN];
psoc5lp_get_part_number(psoc_nvl_bank->device, part_number);
command_print_sameline(cmd, "%s", part_number);
return ERROR_OK;
}
static int psoc5lp_nvl_probe(struct flash_bank *bank)
{
struct psoc5lp_nvl_flash_bank *psoc_nvl_bank = bank->driver_priv;
int retval;
if (psoc_nvl_bank->probed)
return ERROR_OK;
if (bank->target->state != TARGET_HALTED) {
LOG_ERROR("Target not halted");
return ERROR_TARGET_NOT_HALTED;
}
retval = psoc5lp_find_device(bank->target, &psoc_nvl_bank->device);
if (retval != ERROR_OK)
return retval;
bank->base = NVL_META_BASE;
bank->size = 4;
bank->num_sectors = 1;
bank->sectors = calloc(bank->num_sectors,
sizeof(struct flash_sector));
bank->sectors[0].offset = 0;
bank->sectors[0].size = 4;
bank->sectors[0].is_erased = -1;
bank->sectors[0].is_protected = -1;
psoc_nvl_bank->probed = true;
return ERROR_OK;
}
static int psoc5lp_nvl_auto_probe(struct flash_bank *bank)
{
struct psoc5lp_nvl_flash_bank *psoc_nvl_bank = bank->driver_priv;
if (psoc_nvl_bank->probed)
return ERROR_OK;
return psoc5lp_nvl_probe(bank);
}
FLASH_BANK_COMMAND_HANDLER(psoc5lp_nvl_flash_bank_command)
{
struct psoc5lp_nvl_flash_bank *psoc_nvl_bank;
psoc_nvl_bank = malloc(sizeof(struct psoc5lp_nvl_flash_bank));
if (!psoc_nvl_bank)
return ERROR_FLASH_OPERATION_FAILED;
psoc_nvl_bank->probed = false;
bank->driver_priv = psoc_nvl_bank;
return ERROR_OK;
}
const struct flash_driver psoc5lp_nvl_flash = {
.name = "psoc5lp_nvl",
.flash_bank_command = psoc5lp_nvl_flash_bank_command,
.info = psoc5lp_nvl_get_info_command,
.probe = psoc5lp_nvl_probe,
.auto_probe = psoc5lp_nvl_auto_probe,
.read = psoc5lp_nvl_read,
.erase = psoc5lp_nvl_erase,
.erase_check = psoc5lp_nvl_erase_check,
.write = psoc5lp_nvl_write,
.free_driver_priv = default_flash_free_driver_priv,
};
/*
* EEPROM
*/
struct psoc5lp_eeprom_flash_bank {
bool probed;
const struct psoc5lp_device *device;
};
static int psoc5lp_eeprom_erase(struct flash_bank *bank, unsigned int first,
unsigned int last)
{
int retval;
for (unsigned int i = first; i <= last; i++) {
retval = psoc5lp_spc_erase_sector(bank->target,
SPC_ARRAY_EEPROM, i);
if (retval != ERROR_OK)
return retval;
}
return ERROR_OK;
}
static int psoc5lp_eeprom_write(struct flash_bank *bank,
const uint8_t *buffer, uint32_t offset, uint32_t byte_count)
{
struct target *target = bank->target;
uint8_t temp[2];
unsigned row;
int retval;
if (offset % EEPROM_ROW_SIZE != 0) {
LOG_ERROR("Writes must be row-aligned, got offset 0x%08" PRIx32,
offset);
return ERROR_FLASH_DST_BREAKS_ALIGNMENT;
}
retval = psoc5lp_spc_get_temp(target, 3, temp);
if (retval != ERROR_OK) {
LOG_ERROR("Unable to read Die temperature");
return retval;
}
LOG_DEBUG("Get_Temp: sign 0x%02" PRIx8 ", magnitude 0x%02" PRIx8,
temp[0], temp[1]);
for (row = offset / EEPROM_ROW_SIZE; byte_count >= EEPROM_ROW_SIZE; row++) {
retval = psoc5lp_spc_load_row(target, SPC_ARRAY_EEPROM,
buffer, EEPROM_ROW_SIZE);
if (retval != ERROR_OK)
return retval;
retval = psoc5lp_spc_write_row(target, SPC_ARRAY_EEPROM,
row, temp);
if (retval != ERROR_OK)
return retval;
buffer += EEPROM_ROW_SIZE;
byte_count -= EEPROM_ROW_SIZE;
offset += EEPROM_ROW_SIZE;
}
if (byte_count > 0) {
uint8_t buf[EEPROM_ROW_SIZE];
memcpy(buf, buffer, byte_count);
memset(buf + byte_count, bank->default_padded_value,
EEPROM_ROW_SIZE - byte_count);
LOG_DEBUG("Padding %" PRIu32 " bytes", EEPROM_ROW_SIZE - byte_count);
retval = psoc5lp_spc_load_row(target, SPC_ARRAY_EEPROM,
buf, EEPROM_ROW_SIZE);
if (retval != ERROR_OK)
return retval;
retval = psoc5lp_spc_write_row(target, SPC_ARRAY_EEPROM,
row, temp);
if (retval != ERROR_OK)
return retval;
}
return ERROR_OK;
}
static int psoc5lp_eeprom_get_info_command(struct flash_bank *bank, struct command_invocation *cmd)
{
struct psoc5lp_eeprom_flash_bank *psoc_eeprom_bank = bank->driver_priv;
char part_number[PART_NUMBER_LEN];
psoc5lp_get_part_number(psoc_eeprom_bank->device, part_number);
command_print_sameline(cmd, "%s", part_number);
return ERROR_OK;
}
static int psoc5lp_eeprom_probe(struct flash_bank *bank)
{
struct psoc5lp_eeprom_flash_bank *psoc_eeprom_bank = bank->driver_priv;
uint32_t flash_addr = bank->base;
uint32_t val;
int retval;
if (psoc_eeprom_bank->probed)
return ERROR_OK;
if (bank->target->state != TARGET_HALTED) {
LOG_ERROR("Target not halted");
return ERROR_TARGET_NOT_HALTED;
}
retval = psoc5lp_find_device(bank->target, &psoc_eeprom_bank->device);
if (retval != ERROR_OK)
return retval;
retval = target_read_u32(bank->target, PM_ACT_CFG12, &val);
if (retval != ERROR_OK)
return retval;
if (!(val & PM_ACT_CFG12_EN_EE)) {
val |= PM_ACT_CFG12_EN_EE;
retval = target_write_u32(bank->target, PM_ACT_CFG12, val);
if (retval != ERROR_OK)
return retval;
}
bank->size = psoc_eeprom_bank->device->eeprom_kb * 1024;
bank->num_sectors = DIV_ROUND_UP(bank->size, EEPROM_SECTOR_SIZE);
bank->sectors = calloc(bank->num_sectors,
sizeof(struct flash_sector));
for (unsigned int i = 0; i < bank->num_sectors; i++) {
bank->sectors[i].size = EEPROM_SECTOR_SIZE;
bank->sectors[i].offset = flash_addr - bank->base;
bank->sectors[i].is_erased = -1;
bank->sectors[i].is_protected = -1;
flash_addr += bank->sectors[i].size;
}
bank->default_padded_value = bank->erased_value = 0x00;
psoc_eeprom_bank->probed = true;
return ERROR_OK;
}
static int psoc5lp_eeprom_auto_probe(struct flash_bank *bank)
{
struct psoc5lp_eeprom_flash_bank *psoc_eeprom_bank = bank->driver_priv;
if (psoc_eeprom_bank->probed)
return ERROR_OK;
return psoc5lp_eeprom_probe(bank);
}
FLASH_BANK_COMMAND_HANDLER(psoc5lp_eeprom_flash_bank_command)
{
struct psoc5lp_eeprom_flash_bank *psoc_eeprom_bank;
psoc_eeprom_bank = malloc(sizeof(struct psoc5lp_eeprom_flash_bank));
if (!psoc_eeprom_bank)
return ERROR_FLASH_OPERATION_FAILED;
psoc_eeprom_bank->probed = false;
psoc_eeprom_bank->device = NULL;
bank->driver_priv = psoc_eeprom_bank;
return ERROR_OK;
}
const struct flash_driver psoc5lp_eeprom_flash = {
.name = "psoc5lp_eeprom",
.flash_bank_command = psoc5lp_eeprom_flash_bank_command,
.info = psoc5lp_eeprom_get_info_command,
.probe = psoc5lp_eeprom_probe,
.auto_probe = psoc5lp_eeprom_auto_probe,
.read = default_flash_read,
.erase = psoc5lp_eeprom_erase,
.erase_check = default_flash_blank_check,
.write = psoc5lp_eeprom_write,
.free_driver_priv = default_flash_free_driver_priv,
};
/*
* Program Flash
*/
struct psoc5lp_flash_bank {
bool probed;
const struct psoc5lp_device *device;
bool ecc_enabled;
/* If ecc is disabled, num_sectors counts both std and ecc sectors.
* If ecc is enabled, num_sectors indicates just the number of std sectors.
* However ecc sector descriptors bank->sector[num_sectors..2*num_sectors-1]
* are used for driver private flash operations */
};
static int psoc5lp_erase(struct flash_bank *bank, unsigned int first,
unsigned int last)
{
struct psoc5lp_flash_bank *psoc_bank = bank->driver_priv;
int retval;
if (!psoc_bank->ecc_enabled) {
/* Silently avoid erasing sectors twice */
if (last >= first + bank->num_sectors / 2) {
LOG_DEBUG("Skipping duplicate erase of sectors %u to %u",
first + bank->num_sectors / 2, last);
last = first + (bank->num_sectors / 2) - 1;
}
/* Check for any remaining ECC sectors */
if (last >= bank->num_sectors / 2) {
LOG_WARNING("Skipping erase of ECC region sectors %u to %u",
bank->num_sectors / 2, last);
last = (bank->num_sectors / 2) - 1;
}
}
for (unsigned int i = first; i <= last; i++) {
retval = psoc5lp_spc_erase_sector(bank->target,
i / SECTORS_PER_BLOCK, i % SECTORS_PER_BLOCK);
if (retval != ERROR_OK)
return retval;
}
return ERROR_OK;
}
/* Derived from core.c:default_flash_blank_check() */
static int psoc5lp_erase_check(struct flash_bank *bank)
{
struct psoc5lp_flash_bank *psoc_bank = bank->driver_priv;
struct target *target = bank->target;
int retval;
if (target->state != TARGET_HALTED) {
LOG_ERROR("Target not halted");
return ERROR_TARGET_NOT_HALTED;
}
unsigned int num_sectors = bank->num_sectors;
if (psoc_bank->ecc_enabled)
num_sectors *= 2; /* count both std and ecc sector always */
struct target_memory_check_block *block_array;
block_array = malloc(num_sectors * sizeof(struct target_memory_check_block));
if (!block_array)
return ERROR_FAIL;
for (unsigned int i = 0; i < num_sectors; i++) {
block_array[i].address = bank->base + bank->sectors[i].offset;
block_array[i].size = bank->sectors[i].size;
block_array[i].result = UINT32_MAX; /* erase state unknown */
}
bool fast_check = true;
for (unsigned int i = 0; i < num_sectors; ) {
retval = armv7m_blank_check_memory(target,
block_array + i, num_sectors - i,
bank->erased_value);
if (retval < 1) {
/* Run slow fallback if the first run gives no result
* otherwise use possibly incomplete results */
if (i == 0)
fast_check = false;
break;
}
i += retval; /* add number of blocks done this round */
}
if (fast_check) {
if (psoc_bank->ecc_enabled) {
for (unsigned int i = 0; i < bank->num_sectors; i++)
bank->sectors[i].is_erased =
(block_array[i].result != 1)
? block_array[i].result
: block_array[i + bank->num_sectors].result;
/* if std sector is erased, use status of ecc sector */
} else {
for (unsigned int i = 0; i < num_sectors; i++)
bank->sectors[i].is_erased = block_array[i].result;
}
retval = ERROR_OK;
} else {
LOG_ERROR("Can't run erase check - add working memory");
retval = ERROR_FAIL;
}
free(block_array);
return retval;
}
static int psoc5lp_write(struct flash_bank *bank, const uint8_t *buffer,
uint32_t offset, uint32_t byte_count)
{
struct psoc5lp_flash_bank *psoc_bank = bank->driver_priv;
struct target *target = bank->target;
struct working_area *code_area, *even_row_area, *odd_row_area;
uint32_t row_size;
uint8_t temp[2], buf[12], ecc_bytes[ROW_ECC_SIZE];
unsigned array_id, row;
int i, retval;
if (offset + byte_count > bank->size) {
LOG_ERROR("Writing to ECC not supported");
return ERROR_FLASH_DST_OUT_OF_BANK;
}
if (offset % ROW_SIZE != 0) {
LOG_ERROR("Writes must be row-aligned, got offset 0x%08" PRIx32,
offset);
return ERROR_FLASH_DST_BREAKS_ALIGNMENT;
}
row_size = ROW_SIZE;
if (!psoc_bank->ecc_enabled) {
row_size += ROW_ECC_SIZE;
memset(ecc_bytes, bank->default_padded_value, ROW_ECC_SIZE);
}
retval = psoc5lp_spc_get_temp(target, 3, temp);
if (retval != ERROR_OK) {
LOG_ERROR("Unable to read Die temperature");
return retval;
}
LOG_DEBUG("Get_Temp: sign 0x%02" PRIx8 ", magnitude 0x%02" PRIx8,
temp[0], temp[1]);
assert(target_get_working_area_avail(target) == target->working_area_size);
retval = target_alloc_working_area(target,
target_get_working_area_avail(target) / 2, &code_area);
if (retval != ERROR_OK) {
LOG_ERROR("Could not allocate working area for program SRAM");
return retval;
}
assert(code_area->address < 0x20000000);
retval = target_alloc_working_area(target,
SPC_OPCODE_LEN + 1 + row_size + 3 + SPC_OPCODE_LEN + 6,
&even_row_area);
if (retval != ERROR_OK) {
LOG_ERROR("Could not allocate working area for even row");
goto err_alloc_even;
}
assert(even_row_area->address >= 0x20000000);
retval = target_alloc_working_area(target, even_row_area->size,
&odd_row_area);
if (retval != ERROR_OK) {
LOG_ERROR("Could not allocate working area for odd row");
goto err_alloc_odd;
}
assert(odd_row_area->address >= 0x20000000);
for (array_id = offset / BLOCK_SIZE; byte_count > 0; array_id++) {
for (row = (offset / ROW_SIZE) % ROWS_PER_BLOCK;
row < ROWS_PER_BLOCK && byte_count > 0; row++) {
bool even_row = (row % 2 == 0);
struct working_area *data_area = even_row ? even_row_area : odd_row_area;
unsigned len = MIN(ROW_SIZE, byte_count);
LOG_DEBUG("Writing load command for array %u row %u at " TARGET_ADDR_FMT,
array_id, row, data_area->address);
psoc5lp_spc_write_opcode_buffer(target, buf, SPC_LOAD_ROW);
buf[SPC_OPCODE_LEN] = array_id;
retval = target_write_buffer(target, data_area->address, 4, buf);
if (retval != ERROR_OK)
goto err_write;
retval = target_write_buffer(target,
data_area->address + SPC_OPCODE_LEN + 1,
len, buffer);
if (retval != ERROR_OK)
goto err_write;
buffer += len;
byte_count -= len;
offset += len;
if (len < ROW_SIZE) {
uint8_t padding[ROW_SIZE];
memset(padding, bank->default_padded_value, ROW_SIZE);
LOG_DEBUG("Padding %d bytes", ROW_SIZE - len);
retval = target_write_buffer(target,
data_area->address + SPC_OPCODE_LEN + 1 + len,
ROW_SIZE - len, padding);
if (retval != ERROR_OK)
goto err_write;
}
if (!psoc_bank->ecc_enabled) {
retval = target_write_buffer(target,
data_area->address + SPC_OPCODE_LEN + 1 + ROW_SIZE,
sizeof(ecc_bytes), ecc_bytes);
if (retval != ERROR_OK)
goto err_write;
}
for (i = 0; i < 3; i++)
buf[i] = 0x00; /* 3 NOPs for short delay */
psoc5lp_spc_write_opcode_buffer(target, buf + 3, SPC_PRG_ROW);
buf[3 + SPC_OPCODE_LEN] = array_id;
buf[3 + SPC_OPCODE_LEN + 1] = row >> 8;
buf[3 + SPC_OPCODE_LEN + 2] = row & 0xff;
memcpy(buf + 3 + SPC_OPCODE_LEN + 3, temp, 2);
buf[3 + SPC_OPCODE_LEN + 5] = 0x00; /* padding */
retval = target_write_buffer(target,
data_area->address + SPC_OPCODE_LEN + 1 + row_size,
12, buf);
if (retval != ERROR_OK)
goto err_write;
retval = target_write_u32(target,
even_row ? PHUB_CH0_BASIC_STATUS : PHUB_CH1_BASIC_STATUS,
(even_row ? 0 : 1) << 8);
if (retval != ERROR_OK)
goto err_dma;
retval = target_write_u32(target,
even_row ? PHUB_CH0_BASIC_CFG : PHUB_CH1_BASIC_CFG,
PHUB_CHX_BASIC_CFG_WORK_SEP | PHUB_CHX_BASIC_CFG_EN);
if (retval != ERROR_OK)
goto err_dma;
retval = target_write_u32(target,
even_row ? PHUB_CFGMEM0_CFG0 : PHUB_CFGMEM1_CFG0,
PHUB_CFGMEMX_CFG0);
if (retval != ERROR_OK)
goto err_dma;
retval = target_write_u32(target,
even_row ? PHUB_CFGMEM0_CFG1 : PHUB_CFGMEM1_CFG1,
((SPC_CPU_DATA >> 16) << 16) | (data_area->address >> 16));
if (retval != ERROR_OK)
goto err_dma;
retval = target_write_u32(target,
even_row ? PHUB_TDMEM0_ORIG_TD0 : PHUB_TDMEM1_ORIG_TD0,
PHUB_TDMEMX_ORIG_TD0_INC_SRC_ADDR |
PHUB_TDMEMX_ORIG_TD0_NEXT_TD_PTR_LAST |
((SPC_OPCODE_LEN + 1 + row_size + 3 + SPC_OPCODE_LEN + 5) & 0xfff));
if (retval != ERROR_OK)
goto err_dma;
retval = target_write_u32(target,
even_row ? PHUB_TDMEM0_ORIG_TD1 : PHUB_TDMEM1_ORIG_TD1,
((SPC_CPU_DATA & 0xffff) << 16) | (data_area->address & 0xffff));
if (retval != ERROR_OK)
goto err_dma;
retval = psoc5lp_spc_busy_wait_idle(target);
if (retval != ERROR_OK)
goto err_idle;
retval = target_write_u32(target,
even_row ? PHUB_CH0_ACTION : PHUB_CH1_ACTION,
PHUB_CHX_ACTION_CPU_REQ);
if (retval != ERROR_OK)
goto err_dma_action;
}
}
retval = psoc5lp_spc_busy_wait_idle(target);
err_dma_action:
err_idle:
err_dma:
err_write:
target_free_working_area(target, odd_row_area);
err_alloc_odd:
target_free_working_area(target, even_row_area);
err_alloc_even:
target_free_working_area(target, code_area);
return retval;
}
static int psoc5lp_protect_check(struct flash_bank *bank)
{
struct psoc5lp_flash_bank *psoc_bank = bank->driver_priv;
uint8_t row_data[ROW_SIZE];
const unsigned protection_bytes_per_sector = ROWS_PER_SECTOR * 2 / 8;
unsigned i, k, num_sectors;
int retval;
if (bank->target->state != TARGET_HALTED) {
LOG_ERROR("Target not halted");
return ERROR_TARGET_NOT_HALTED;
}
for (i = 0; i < DIV_ROUND_UP(bank->size, BLOCK_SIZE); i++) {
retval = psoc5lp_spc_read_hidden_row(bank->target, i,
SPC_ROW_PROTECTION, row_data);
if (retval != ERROR_OK)
return retval;
/* Last flash array may have less rows, but in practice full sectors. */
if (i == bank->size / BLOCK_SIZE)
num_sectors = (bank->size % BLOCK_SIZE) / SECTOR_SIZE;
else
num_sectors = SECTORS_PER_BLOCK;
for (unsigned int j = 0; j < num_sectors; j++) {
int sector_nr = i * SECTORS_PER_BLOCK + j;
struct flash_sector *sector = &bank->sectors[sector_nr];
struct flash_sector *ecc_sector;
if (psoc_bank->ecc_enabled)
ecc_sector = &bank->sectors[bank->num_sectors + sector_nr];
else
ecc_sector = &bank->sectors[bank->num_sectors / 2 + sector_nr];
sector->is_protected = ecc_sector->is_protected = 0;
for (k = protection_bytes_per_sector * j;
k < protection_bytes_per_sector * (j + 1); k++) {
assert(k < protection_bytes_per_sector * SECTORS_PER_BLOCK);
LOG_DEBUG("row[%u][%02u] = 0x%02" PRIx8, i, k, row_data[k]);
if (row_data[k] != 0x00) {
sector->is_protected = ecc_sector->is_protected = 1;
break;
}
}
}
}
return ERROR_OK;
}
static int psoc5lp_get_info_command(struct flash_bank *bank, struct command_invocation *cmd)
{
struct psoc5lp_flash_bank *psoc_bank = bank->driver_priv;
char part_number[PART_NUMBER_LEN];
const char *ecc;
psoc5lp_get_part_number(psoc_bank->device, part_number);
ecc = psoc_bank->ecc_enabled ? "ECC enabled" : "ECC disabled";
command_print_sameline(cmd, "%s %s", part_number, ecc);
return ERROR_OK;
}
static int psoc5lp_probe(struct flash_bank *bank)
{
struct target *target = bank->target;
struct psoc5lp_flash_bank *psoc_bank = bank->driver_priv;
uint32_t flash_addr = bank->base;
uint8_t nvl[4], temp[2];
int retval;
if (target->state != TARGET_HALTED) {
LOG_ERROR("Target not halted");
return ERROR_TARGET_NOT_HALTED;
}
if (!psoc_bank->device) {
retval = psoc5lp_find_device(target, &psoc_bank->device);
if (retval != ERROR_OK)
return retval;
bank->size = psoc_bank->device->flash_kb * 1024;
}
bank->num_sectors = DIV_ROUND_UP(bank->size, SECTOR_SIZE);
if (!psoc_bank->probed) {
retval = psoc5lp_spc_enable_clock(target);
if (retval != ERROR_OK)
return retval;
/* First values read are inaccurate, so do it once now. */
retval = psoc5lp_spc_get_temp(target, 3, temp);
if (retval != ERROR_OK) {
LOG_ERROR("Unable to read Die temperature");
return retval;
}
bank->sectors = calloc(bank->num_sectors * 2,
sizeof(struct flash_sector));
for (unsigned int i = 0; i < bank->num_sectors; i++) {
bank->sectors[i].size = SECTOR_SIZE;
bank->sectors[i].offset = flash_addr - bank->base;
bank->sectors[i].is_erased = -1;
bank->sectors[i].is_protected = -1;
flash_addr += bank->sectors[i].size;
}
flash_addr = 0x48000000;
for (unsigned int i = bank->num_sectors; i < bank->num_sectors * 2; i++) {
bank->sectors[i].size = ROWS_PER_SECTOR * ROW_ECC_SIZE;
bank->sectors[i].offset = flash_addr - bank->base;
bank->sectors[i].is_erased = -1;
bank->sectors[i].is_protected = -1;
flash_addr += bank->sectors[i].size;
}
bank->default_padded_value = bank->erased_value = 0x00;
psoc_bank->probed = true;
}
retval = psoc5lp_spc_read_byte(target, SPC_ARRAY_NVL_USER, 3, &nvl[3]);
if (retval != ERROR_OK)
return retval;
LOG_DEBUG("NVL[%d] = 0x%02" PRIx8, 3, nvl[3]);
psoc_bank->ecc_enabled = nvl[3] & NVL_3_ECCEN;
if (!psoc_bank->ecc_enabled)
bank->num_sectors *= 2;
return ERROR_OK;
}
static int psoc5lp_auto_probe(struct flash_bank *bank)
{
return psoc5lp_probe(bank);
}
COMMAND_HANDLER(psoc5lp_handle_mass_erase_command)
{
struct flash_bank *bank;
int retval;
if (CMD_ARGC < 1)
return ERROR_COMMAND_SYNTAX_ERROR;
retval = CALL_COMMAND_HANDLER(flash_command_get_bank, 0, &bank);
if (retval != ERROR_OK)
return retval;
retval = psoc5lp_spc_erase_all(bank->target);
if (retval == ERROR_OK)
command_print(CMD, "PSoC 5LP erase succeeded");
else
command_print(CMD, "PSoC 5LP erase failed");
return retval;
}
FLASH_BANK_COMMAND_HANDLER(psoc5lp_flash_bank_command)
{
struct psoc5lp_flash_bank *psoc_bank;
psoc_bank = malloc(sizeof(struct psoc5lp_flash_bank));
if (!psoc_bank)
return ERROR_FLASH_OPERATION_FAILED;
psoc_bank->probed = false;
psoc_bank->device = NULL;
bank->driver_priv = psoc_bank;
return ERROR_OK;
}
static const struct command_registration psoc5lp_exec_command_handlers[] = {
{
.name = "mass_erase",
.handler = psoc5lp_handle_mass_erase_command,
.mode = COMMAND_EXEC,
.usage = "bank_id",
.help = "Erase all flash data and ECC/configuration bytes, "
"all flash protection rows, "
"and all row latches in all flash arrays on the device.",
},
COMMAND_REGISTRATION_DONE
};
static const struct command_registration psoc5lp_command_handlers[] = {
{
.name = "psoc5lp",
.mode = COMMAND_ANY,
.help = "PSoC 5LP flash command group",
.usage = "",
.chain = psoc5lp_exec_command_handlers,
},
COMMAND_REGISTRATION_DONE
};
const struct flash_driver psoc5lp_flash = {
.name = "psoc5lp",
.commands = psoc5lp_command_handlers,
.flash_bank_command = psoc5lp_flash_bank_command,
.info = psoc5lp_get_info_command,
.probe = psoc5lp_probe,
.auto_probe = psoc5lp_auto_probe,
.protect_check = psoc5lp_protect_check,
.read = default_flash_read,
.erase = psoc5lp_erase,
.erase_check = psoc5lp_erase_check,
.write = psoc5lp_write,
.free_driver_priv = default_flash_free_driver_priv,
};
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