* Copyright (C) 2009 Michael Schwingen *
* michael@schwingen.org *
* Copyright (C) 2010 Øyvind Harboe <oyvind.harboe@zylin.com> *
+ * Copyright (C) 2010 by Antonio Borneo <borneo.antonio@gmail.com> *
* *
* This program is free software; you can redistribute it and/or modify *
* it under the terms of the GNU General Public License as published by *
{
int retval;
struct cfi_flash_bank *cfi_info = bank->driver_priv;
- struct cfi_intel_pri_ext *pri_ext = malloc(sizeof(struct cfi_intel_pri_ext));
+ struct cfi_intel_pri_ext *pri_ext;
+ if (cfi_info->pri_ext)
+ free(cfi_info->pri_ext);
+
+ pri_ext = malloc(sizeof(struct cfi_intel_pri_ext));
+ if (pri_ext == NULL)
+ {
+ LOG_ERROR("Out of memory");
+ return ERROR_FAIL;
+ }
cfi_info->pri_ext = pri_ext;
pri_ext->pri[0] = cfi_query_u8(bank, 0, cfi_info->pri_addr + 0);
{
int retval;
struct cfi_flash_bank *cfi_info = bank->driver_priv;
- struct cfi_spansion_pri_ext *pri_ext = malloc(sizeof(struct cfi_spansion_pri_ext));
+ struct cfi_spansion_pri_ext *pri_ext;
+
+ if (cfi_info->pri_ext)
+ free(cfi_info->pri_ext);
+ pri_ext = malloc(sizeof(struct cfi_spansion_pri_ext));
+ if (pri_ext == NULL)
+ {
+ LOG_ERROR("Out of memory");
+ return ERROR_FAIL;
+ }
cfi_info->pri_ext = pri_ext;
pri_ext->pri[0] = cfi_query_u8(bank, 0, cfi_info->pri_addr + 0);
int retval;
struct cfi_atmel_pri_ext atmel_pri_ext;
struct cfi_flash_bank *cfi_info = bank->driver_priv;
- struct cfi_spansion_pri_ext *pri_ext = malloc(sizeof(struct cfi_spansion_pri_ext));
+ struct cfi_spansion_pri_ext *pri_ext;
+
+ if (cfi_info->pri_ext)
+ free(cfi_info->pri_ext);
+
+ pri_ext = malloc(sizeof(struct cfi_spansion_pri_ext));
+ if (pri_ext == NULL)
+ {
+ LOG_ERROR("Out of memory");
+ return ERROR_FAIL;
+ }
/* ATMEL devices use the same CFI primary command set (0x2) as AMD/Spansion,
* but a different primary extended query table.
cfi_info = malloc(sizeof(struct cfi_flash_bank));
cfi_info->probed = 0;
+ cfi_info->erase_region_info = 0;
+ cfi_info->pri_ext = NULL;
bank->driver_priv = cfi_info;
cfi_info->write_algorithm = NULL;
int retval;
struct cfi_flash_bank *cfi_info = bank->driver_priv;
struct cfi_intel_pri_ext *pri_ext = cfi_info->pri_ext;
- struct target *target = bank->target; /* FIXME: to be removed */
- uint8_t command[CFI_MAX_BUS_WIDTH]; /* FIXME: to be removed */
int retry = 0;
int i;
for (i = first; i <= last; i++)
{
- cfi_command(bank, 0x60, command); /* FIXME: to be removed */
- LOG_DEBUG("address: 0x%4.4" PRIx32 ", command: 0x%4.4" PRIx32, flash_address(bank, i, 0x0), target_buffer_get_u32(target, command));
if ((retval = cfi_send_command(bank, 0x60, flash_address(bank, i, 0x0))) != ERROR_OK)
{
return retval;
}
if (set)
{
- cfi_command(bank, 0x01, command); /* FIXME: to be removed */
- LOG_DEBUG("address: 0x%4.4" PRIx32 ", command: 0x%4.4" PRIx32 , flash_address(bank, i, 0x0), target_buffer_get_u32(target, command));
if ((retval = cfi_send_command(bank, 0x01, flash_address(bank, i, 0x0))) != ERROR_OK)
{
return retval;
}
else
{
- cfi_command(bank, 0xd0, command); /* FIXME: to be removed */
- LOG_DEBUG("address: 0x%4.4" PRIx32 ", command: 0x%4.4" PRIx32, flash_address(bank, i, 0x0), target_buffer_get_u32(target, command));
if ((retval = cfi_send_command(bank, 0xd0, flash_address(bank, i, 0x0))) != ERROR_OK)
{
return retval;
/* convert bus-width dependent algorithm code to correct endiannes */
target_code = malloc(target_code_size);
+ if (target_code == NULL)
+ {
+ LOG_ERROR("Out of memory");
+ return ERROR_FAIL;
+ }
cfi_fix_code_endian(target, target_code, target_code_src, target_code_size / 4);
/* allocate working area */
return ERROR_FLASH_OPERATION_FAILED;
}
+static int cfi_read(struct flash_bank *bank, uint8_t *buffer, uint32_t offset, uint32_t count)
+{
+ struct cfi_flash_bank *cfi_info = bank->driver_priv;
+ struct target *target = bank->target;
+ uint32_t address = bank->base + offset;
+ uint32_t read_p;
+ int align; /* number of unaligned bytes */
+ uint8_t current_word[CFI_MAX_BUS_WIDTH];
+ int i;
+ int retval;
+
+ LOG_DEBUG("reading buffer of %i byte at 0x%8.8x",
+ (int)count, (unsigned)offset);
+
+ if (bank->target->state != TARGET_HALTED)
+ {
+ LOG_ERROR("Target not halted");
+ return ERROR_TARGET_NOT_HALTED;
+ }
+
+ if (offset + count > bank->size)
+ return ERROR_FLASH_DST_OUT_OF_BANK;
+
+ if (cfi_info->qry[0] != 'Q')
+ return ERROR_FLASH_BANK_NOT_PROBED;
+
+ /* start at the first byte of the first word (bus_width size) */
+ read_p = address & ~(bank->bus_width - 1);
+ if ((align = address - read_p) != 0)
+ {
+ LOG_INFO("Fixup %d unaligned read head bytes", align);
+
+ /* read a complete word from flash */
+ if ((retval = target_read_memory(target, read_p, bank->bus_width, 1, current_word)) != ERROR_OK)
+ return retval;
+
+ /* take only bytes we need */
+ for (i = align; (i < bank->bus_width) && (count > 0); i++, count--)
+ *buffer++ = current_word[i];
+
+ read_p += bank->bus_width;
+ }
+
+ align = count / bank->bus_width;
+ if (align)
+ {
+ if ((retval = target_read_memory(target, read_p, bank->bus_width, align, buffer)) != ERROR_OK)
+ return retval;
+
+ read_p += align * bank->bus_width;
+ buffer += align * bank->bus_width;
+ count -= align * bank->bus_width;
+ }
+
+ if (count)
+ {
+ LOG_INFO("Fixup %d unaligned read tail bytes", count);
+
+ /* read a complete word from flash */
+ if ((retval = target_read_memory(target, read_p, bank->bus_width, 1, current_word)) != ERROR_OK)
+ return retval;
+
+ /* take only bytes we need */
+ for (i = 0; (i < bank->bus_width) && (count > 0); i++, count--)
+ *buffer++ = current_word[i];
+ }
+
+ return ERROR_OK;
+}
+
static int cfi_write(struct flash_bank *bank, uint8_t *buffer, uint32_t offset, uint32_t count)
{
struct cfi_flash_bank *cfi_info = bank->driver_priv;
}
cfi_info->probed = 0;
+ if (bank->sectors)
+ {
+ free(bank->sectors);
+ bank->sectors = NULL;
+ }
+ if(cfi_info->erase_region_info)
+ {
+ free(cfi_info->erase_region_info);
+ cfi_info->erase_region_info = NULL;
+ }
/* JEDEC standard JESD21C uses 0x5555 and 0x2aaa as unlock addresses,
* while CFI compatible AMD/Spansion flashes use 0x555 and 0x2aa
.erase = cfi_erase,
.protect = cfi_protect,
.write = cfi_write,
+ .read = cfi_read,
.probe = cfi_probe,
.auto_probe = cfi_auto_probe,
/* FIXME: access flash at bus_width size */
projects / fw / openocd / blobdiff