/**
*
* This function verifies the locking and unlocking features of the Flash device.
*
* @param None
*
* @return XST_SUCCESS if successful else XST_FAILURE.
*
* @note None.
*
******************************************************************************/
int FlashProtectionExample(void)
{
int Status;
u32 Index;
char temp[120];
/*
* Initialize the Flash Library.
*/
Status = XFlash_Initialize(&FlashInstance, FLASH_BASE_ADDRESS,
FLASH_MEM_WIDTH, 0);
if(Status != XST_SUCCESS) {
xil_printf("-- Fail at Initialize --\r\n");
if(logenable==1) strcat(logbuf, "-- Fail at Initialize --\r\n");
return XST_FAILURE;
}
xil_printf("-- Initialized the Flash library successfully --\r\n");
if(logenable==1) strcat(logbuf, "-- Initialized the Flash library successfully --\r\n");
/*
* Reset the Flash Device. This clears the Status registers and puts
* the device in Read mode.
*/
Status = XFlash_Reset(&FlashInstance);
if(Status != XST_SUCCESS) {
xil_printf("-- Fail at reset --\r\n");
if(logenable==1) strcat(logbuf, "-- Fail at reset --\r\n");
return XST_FAILURE;
}
/*
* Lock the Block.
*/
Status = XFlash_Lock(&FlashInstance, BLOCK_OFFSET_ADDR, 0);
if(Status != XST_SUCCESS) {
xil_printf("-- Lock error --\r\n");
if(logenable==1) strcat(logbuf, "-- Lock error --\r\n");
return XST_FAILURE;
}
xil_printf("-- Locked all the blocks successfully --\r\n");
if(logenable==1) strcat(logbuf, "-- Locked all the blocks successfully --\r\n");
/*
* Perform the Erase operation. This should fail as the block is locked.
*/
Status = XFlash_Erase(&FlashInstance, START_ADDRESS, FLASH_TEST_SIZE);
if(Status == XST_SUCCESS) {
xil_printf("-- Erase failed --\r\n");
if(logenable==1) strcat(logbuf, "-- Erase failed --\r\n");
return XST_FAILURE;
}
xil_printf("-- Erased the Flash memory contents at offset 0x%07x successfully --\r\n",
START_ADDRESS);
if(logenable==1)
{
sprintf(temp, "-- Erased the Flash memory contents at offset 0x%07x successfully --\r\n",
START_ADDRESS);
strcat(logbuf, temp);
}
/*
* Unlock the Block.
*/
Status = XFlash_Unlock(&FlashInstance, BLOCK_OFFSET_ADDR, 0);
if(Status != XST_SUCCESS) {
return XST_FAILURE;
}
xil_printf("-- Unlocked all the blocks successfully --\r\n");
if(logenable==1) strcat(logbuf, "-- Unlocked all the blocks successfully --\r\n");
/*
* Perform the Erase operation. This should succeed as the block is
* unlocked.
*/
Status = XFlash_Erase(&FlashInstance, START_ADDRESS, FLASH_TEST_SIZE);
if(Status != XST_SUCCESS) {
return XST_FAILURE;
}
/*
* Prepare the write buffer. Fill in the data need to be written into
* Flash Device.
*/
xil_printf("-- Writing: ");
if(logenable==1) strcat(logbuf, "-- Writing: ");
for(Index = 0; Index < FLASH_TEST_SIZE; Index++) {
WriteBuffer[Index] = (u8)Index;
xil_printf("%02x", WriteBuffer[Index]);
if(logenable==1)
{
sprintf(temp, "%02x", WriteBuffer[Index]);
strcat(logbuf, temp);
}
}
xil_printf("\r\n");
if(logenable==1) strcat(logbuf, "\r\n");
/*
* Perform the Write operation.
*/
Status = XFlash_Write(&FlashInstance, START_ADDRESS, FLASH_TEST_SIZE,
WriteBuffer);
if(Status != XST_SUCCESS) {
return XST_FAILURE;
}
xil_printf("-- Write operation at offset 0x%07x completed successfully --\r\n",
START_ADDRESS);
if(logenable==1)
{
sprintf(temp, "-- Write operation at offset 0x%07x completed successfully --\r\n",
START_ADDRESS);
strcat(logbuf, temp);
}
/*
* Perform the read operation.
*/
Status = XFlash_Read(&FlashInstance, START_ADDRESS, FLASH_TEST_SIZE,
ReadBuffer);
if(Status != XST_SUCCESS) {
return XST_FAILURE;
}
xil_printf("-- Read operation completed successfully --\r\n");
if(logenable==1) strcat(logbuf, "-- Read operation completed successfully --\r\n");
/*
* Compare the data read against the data Written.
*/
for(Index = 0; Index < FLASH_TEST_SIZE; Index++) {
if(ReadBuffer[Index] != (u8)Index) {
return XST_FAILURE;
}
}
xil_printf("-- Data comparison successful --\r\n");
if(logenable==1) strcat(logbuf, "-- Data comparison successful --\r\n");
return XST_SUCCESS;
}
/**
*
* This function verifies the locking and unlocking features of the Flash device.
*
* @param None
*
* @return XST_SUCCESS if successful else XST_FAILURE.
*
* @note None.
*
******************************************************************************/
int FlashProtectionExample(void)
{
int Status;
u32 Index;
#ifdef XPAR_XFL_DEVICE_FAMILY_INTEL
#if XFL_TO_ASYNCMODE
/*
* Set Flash to Async mode.
*/
if (FLASH_MEM_WIDTH == 1) {
WRITE_FLASH_8(FLASH_BASE_ADDRESS + ASYNC_ADDR, 0x60);
WRITE_FLASH_8(FLASH_BASE_ADDRESS + ASYNC_ADDR, 0x03);
} else if (FLASH_MEM_WIDTH == 2) {
WRITE_FLASH_16(FLASH_BASE_ADDRESS + ASYNC_ADDR,
INTEL_CMD_CONFIG_REG_SETUP);
WRITE_FLASH_16(FLASH_BASE_ADDRESS + ASYNC_ADDR,
INTEL_CMD_CONFIG_REG_CONFIRM);
}
#endif
#endif
/*
* Initialize the Flash Library.
*/
Status = XFlash_Initialize(&FlashInstance, FLASH_BASE_ADDRESS,
FLASH_MEM_WIDTH, 0);
if(Status != XST_SUCCESS) {
return XST_FAILURE;
}
/*
* Reset the Flash Device. This clears the Status registers and puts
* the device in Read mode.
*/
Status = XFlash_Reset(&FlashInstance);
if(Status != XST_SUCCESS) {
return XST_FAILURE;
}
/*
* Lock the Block.
*/
Status = XFlash_Lock(&FlashInstance, BLOCK_OFFSET_ADDR, 0);
if(Status != XST_SUCCESS) {
return XST_FAILURE;
}
/*
* Perform the Erase operation. This should fail as the block is locked.
*/
Status = XFlash_Erase(&FlashInstance, START_ADDRESS, FLASH_TEST_SIZE);
if(Status == XST_SUCCESS) {
return XST_FAILURE;
}
/*
* Unlock the Block.
*/
Status = XFlash_Unlock(&FlashInstance, BLOCK_OFFSET_ADDR, 0);
if(Status != XST_SUCCESS) {
return XST_FAILURE;
}
/*
* Perform the Erase operation. This should succeed as the block is
* unlocked.
*/
Status = XFlash_Erase(&FlashInstance, START_ADDRESS, FLASH_TEST_SIZE);
if(Status != XST_SUCCESS) {
return XST_FAILURE;
}
/*
* Prepare the write buffer. Fill in the data need to be written into
* Flash Device.
*/
for(Index = 0; Index < FLASH_TEST_SIZE; Index++) {
WriteBuffer[Index] = (u8)Index;
}
/*
* Perform the Write operation.
*/
Status = XFlash_Write(&FlashInstance, START_ADDRESS, FLASH_TEST_SIZE,
WriteBuffer);
if(Status != XST_SUCCESS) {
return XST_FAILURE;
}
/*
* Perform the read operation.
*/
Status = XFlash_Read(&FlashInstance, START_ADDRESS, FLASH_TEST_SIZE,
ReadBuffer);
if(Status != XST_SUCCESS) {
return XST_FAILURE;
}
/*
* Compare the data read against the data Written.
*/
for(Index = 0; Index < FLASH_TEST_SIZE; Index++) {
if(ReadBuffer[Index] != (u8)Index) {
return XST_FAILURE;
}
}
return XST_SUCCESS;
}