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-rw-r--r--src/flash/nor/pic32mx.c52
1 files changed, 44 insertions, 8 deletions
diff --git a/src/flash/nor/pic32mx.c b/src/flash/nor/pic32mx.c
index b718c98f..0b43c1b5 100644
--- a/src/flash/nor/pic32mx.c
+++ b/src/flash/nor/pic32mx.c
@@ -420,6 +420,7 @@ static int pic32mx_write_block(struct flash_bank *bank, uint8_t *buffer,
struct working_area *source;
uint32_t address = bank->base + offset;
struct reg_param reg_params[3];
+ uint32_t row_size;
int retval = ERROR_OK;
struct pic32mx_flash_bank *pic32mx_info = bank->driver_priv;
@@ -439,12 +440,14 @@ static int pic32mx_write_block(struct flash_bank *bank, uint8_t *buffer,
pic32mx_flash_write_code[14] = 0x24840080;
pic32mx_flash_write_code[15] = 0x24A50080;
pic32mx_flash_write_code[17] = 0x24C6FFE0;
+ row_size = 128;
} else {
/* 512 byte row */
pic32mx_flash_write_code[8] = 0x2CD30080;
pic32mx_flash_write_code[14] = 0x24840200;
pic32mx_flash_write_code[15] = 0x24A50200;
pic32mx_flash_write_code[17] = 0x24C6FF80;
+ row_size = 512;
}
retval = target_write_buffer(target, pic32mx_info->write_algorithm->address,
@@ -464,7 +467,7 @@ static int pic32mx_write_block(struct flash_bank *bank, uint8_t *buffer,
LOG_WARNING("no large enough working area available, can't do block memory writes");
return ERROR_TARGET_RESOURCE_NOT_AVAILABLE;
}
- };
+ }
mips32_info.common_magic = MIPS32_COMMON_MAGIC;
mips32_info.isa_mode = MIPS32_ISA_MIPS32;
@@ -473,19 +476,46 @@ static int pic32mx_write_block(struct flash_bank *bank, uint8_t *buffer,
init_reg_param(&reg_params[1], "a1", 32, PARAM_OUT);
init_reg_param(&reg_params[2], "a2", 32, PARAM_OUT);
+ int row_offset = offset % row_size;
+ uint8_t *new_buffer = NULL;
+ if (row_offset && (count >= (row_size / 4))) {
+ new_buffer = malloc(buffer_size);
+ if (new_buffer == NULL) {
+ LOG_ERROR("Out of memory");
+ return ERROR_FAIL;
+ }
+ memset(new_buffer, 0xff, row_offset);
+ address -= row_offset;
+ } else
+ row_offset = 0;
+
while (count > 0) {
uint32_t status;
- uint32_t thisrun_count = (count > (buffer_size / 4)) ?
- (buffer_size / 4) : count;
+ uint32_t thisrun_count;
- retval = target_write_buffer(target, source->address,
- thisrun_count * 4, buffer);
- if (retval != ERROR_OK)
- break;
+ if (row_offset) {
+ thisrun_count = (count > ((buffer_size - row_offset) / 4)) ?
+ ((buffer_size - row_offset) / 4) : count;
+
+ memcpy(new_buffer + row_offset, buffer, thisrun_count * 4);
+
+ retval = target_write_buffer(target, source->address,
+ row_offset + thisrun_count * 4, new_buffer);
+ if (retval != ERROR_OK)
+ break;
+ } else {
+ thisrun_count = (count > (buffer_size / 4)) ?
+ (buffer_size / 4) : count;
+
+ retval = target_write_buffer(target, source->address,
+ thisrun_count * 4, buffer);
+ if (retval != ERROR_OK)
+ break;
+ }
buf_set_u32(reg_params[0].value, 0, 32, Virt2Phys(source->address));
buf_set_u32(reg_params[1].value, 0, 32, Virt2Phys(address));
- buf_set_u32(reg_params[2].value, 0, 32, thisrun_count);
+ buf_set_u32(reg_params[2].value, 0, 32, thisrun_count + row_offset / 4);
retval = target_run_algorithm(target, 0, NULL, 3, reg_params,
pic32mx_info->write_algorithm->address,
@@ -513,6 +543,10 @@ static int pic32mx_write_block(struct flash_bank *bank, uint8_t *buffer,
buffer += thisrun_count * 4;
address += thisrun_count * 4;
count -= thisrun_count;
+ if (row_offset) {
+ address += row_offset;
+ row_offset = 0;
+ }
}
target_free_working_area(target, source);
@@ -522,6 +556,8 @@ static int pic32mx_write_block(struct flash_bank *bank, uint8_t *buffer,
destroy_reg_param(&reg_params[1]);
destroy_reg_param(&reg_params[2]);
+ if (new_buffer != NULL)
+ free(new_buffer);
return retval;
}