int main(void)
{
qm_flash_config_t cfg;
uint32_t wr_flash_addr, app_end, page_num, flash_base, flash_num;
#if (QUARK_D2000)
flash_base = QM_FLASH_REGION_SYS_0_BASE;
flash_num = QM_FLASH_0;
#elif(QUARK_SE)
flash_base = QM_FLASH_REGION_SYS_1_BASE;
flash_num = QM_FLASH_1;
#endif
QM_PUTS("Starting: Flash");
app_end = (uint32_t)__data_lma + (uint32_t)__data_size;
/* Check there is at least one free flash page after the app code. */
if ((app_end + QM_FLASH_PAGE_SIZE_BYTES) > FLASH_END) {
QM_PUTS("Error: No free pages. Quitting.");
return 1;
}
/*
* Calculate flash page number, and an MMIO address representing a
* location inside the page.
*/
page_num = ((app_end - flash_base) / QM_FLASH_PAGE_SIZE_BYTES) + 1;
wr_flash_addr = (QM_FLASH_PAGE_SIZE_BYTES * page_num) + WR_PAGE_OFFSET;
cfg.us_count = US_COUNT;
cfg.wait_states = WAIT_STATES;
cfg.write_disable = QM_FLASH_WRITE_ENABLE;
qm_flash_set_config(flash_num, &cfg);
/* Requires a 2KB buffer to store flash page. */
qm_flash_page_update(flash_num, QM_FLASH_REGION_SYS, wr_flash_addr,
flash_page_buffer, flash_data, NUM_DATA_WORDS);
qm_flash_page_erase(flash_num, QM_FLASH_REGION_SYS, page_num);
qm_flash_page_write(flash_num, QM_FLASH_REGION_SYS, page_num,
flash_data, NUM_DATA_WORDS);
QM_PUTS("Finished: Flash");
return 0;
}
/**
* Sanitize application flash partitions.
*
* Check and fix inconsistent partitions. Fixing consists in erasing the first
* page of the partition to ensure that it will not be booted.
*
* @return Whether or not a writeback of bl-data is needed.
* @retval false Writeback not needed (no partition has been fixed and bl-data
* has not been updated).
* @retval true Writeback needed (at least one partition has been fixed and
* therefore bl-data has been updated).
*/
static bool bl_data_sanitize_partitions()
{
int wb_needed;
int i;
wb_needed = false;
bl_flash_partition_t *part;
for (i = 0; i < BL_FLASH_PARTITIONS_NUM; i++) {
part = &bl_data->partitions[i];
if (part->is_consistent == false) {
qm_flash_page_erase(part->controller,
QM_FLASH_REGION_SYS,
part->first_page);
part->is_consistent = true;
wb_needed = true;
}
}
return wb_needed;
}
