/* To make things simple use byte writes only */
for (i = 0; i < cnt; i++) {
*(uchar *)(addr + i) = src[i];
+ /* avoid re-ordering flash data write and busy status
+ * check as flash memory space attributes are generally Normal
+ */
+ mb();
while (readl(&STM32_FLASH->sr) & STM32_FLASH_SR_BSY)
;
}