/**
*
* This function Polls for the DMA done or FPGA done.
*
* @param none
*
* @return
* - XST_SUCCESS if polling for DMA/FPGA done is successful
* - XST_FAILURE if polling for DMA/FPGA done fails
*
* @note none
*
****************************************************************************/
int XDcfgPollDone(u32 MaskValue, u32 MaxCount)
{
int Count = MaxCount;
u32 IntrStsReg = 0;
/*
* poll for the DMA done
*/
IntrStsReg = XDcfg_IntrGetStatus(DcfgInstPtr);
while ((IntrStsReg & MaskValue) !=
MaskValue) {
IntrStsReg = XDcfg_IntrGetStatus(DcfgInstPtr);
Count -=1;
if (IntrStsReg & FSBL_XDCFG_IXR_ERROR_FLAGS_MASK) {
fsbl_printf(DEBUG_INFO,"FATAL errors in PCAP %x\r\n",
IntrStsReg);
PcapDumpRegisters();
return XST_FAILURE;
}
if(!Count) {
fsbl_printf(DEBUG_GENERAL,"PCAP transfer timed out \r\n");
return XST_FAILURE;
}
if (Count > (MAX_COUNT-100)) {
fsbl_printf(DEBUG_GENERAL,".");
}
}
fsbl_printf(DEBUG_GENERAL,"\n\r");
XDcfg_IntrClear(DcfgInstPtr, IntrStsReg & MaskValue);
return XST_SUCCESS;
}
int XDcfg_TransferBitfile(XDcfg *Instance, u32 StartAddress, u32 WordLength)
{
int Status;
volatile u32 IntrStsReg = 0;
// TODO : not working although suggested procedure per TRM
// Disable AXI Interface and Output Level Shifters (Input Level Shifters are still enabled)
// Xil_Out32(SLCR_UNLOCK, SLCR_UNLOCK_VAL);
// Xil_Out32(FPGA_RST_CTRL, 0xFFFFFFFF);
// Xil_Out32(LVL_SHFTR_EN, 0xA);
// Xil_Out32(SLCR_LOCK, SLCR_LOCK_VAL);
// Clear DMA and PCAP Done Interrupts
XDcfg_IntrClear(Instance, (XDCFG_IXR_DMA_DONE_MASK | XDCFG_IXR_D_P_DONE_MASK));
// Transfer bitstream from DDR into fabric in non secure mode
Status = XDcfg_Transfer(Instance, (u32 *) StartAddress, WordLength, (u32 *) XDCFG_DMA_INVALID_ADDRESS, 0, XDCFG_NON_SECURE_PCAP_WRITE);
if (Status != XST_SUCCESS)
return Status;
// Poll DMA Done Interrupt
while ((IntrStsReg & XDCFG_IXR_DMA_DONE_MASK) != XDCFG_IXR_DMA_DONE_MASK)
IntrStsReg = XDcfg_IntrGetStatus(Instance);
// Poll PCAP Done Interrupt
while ((IntrStsReg & XDCFG_IXR_D_P_DONE_MASK) != XDCFG_IXR_D_P_DONE_MASK)
IntrStsReg = XDcfg_IntrGetStatus(Instance);
// Enable AXI Interface and Input/Output Level Shifters
// Xil_Out32(SLCR_UNLOCK, SLCR_UNLOCK_VAL);
// Xil_Out32(LVL_SHFTR_EN, 0xF);
// Xil_Out32(FPGA_RST_CTRL, 0x0);
// Xil_Out32(SLCR_LOCK, SLCR_LOCK_VAL);
return XST_SUCCESS;
}
/**
*
* This function Clears the PCAP status registers.
*
* @param None
*
* @return
* - XST_SUCCESS if the pcap status registers are cleared
* - XST_FAILURE if errors are there
* - XST_DEVICE_BUSY if Pcap device is busy
* @note None
*
****************************************************************************/
u32 ClearPcapStatus(void)
{
u32 StatusReg;
u32 IntStatusReg;
/*
* Clear it all, so if Boot ROM comes back, it can proceed
*/
XDcfg_IntrClear(DcfgInstPtr, 0xFFFFFFFF);
/*
* Get PCAP Interrupt Status Register
*/
IntStatusReg = XDcfg_IntrGetStatus(DcfgInstPtr);
if (IntStatusReg & FSBL_XDCFG_IXR_ERROR_FLAGS_MASK) {
fsbl_printf(DEBUG_INFO,"FATAL errors in PCAP %x\r\n",
IntStatusReg);
return XST_FAILURE;
}
/*
* Read the PCAP status register for DMA status
*/
StatusReg = XDcfg_GetStatusRegister(DcfgInstPtr);
fsbl_printf(DEBUG_INFO,"PCAP:StatusReg = 0x%.8x\r\n", StatusReg);
/*
* If the queue is full, return w/ XST_DEVICE_BUSY
*/
if ((StatusReg & XDCFG_STATUS_DMA_CMD_Q_F_MASK) ==
XDCFG_STATUS_DMA_CMD_Q_F_MASK) {
fsbl_printf(DEBUG_INFO,"PCAP_DEVICE_BUSY\r\n");
return XST_DEVICE_BUSY;
}
fsbl_printf(DEBUG_INFO,"PCAP:device ready\r\n");
/*
* There are unacknowledged DMA commands outstanding
*/
if ((StatusReg & XDCFG_STATUS_DMA_CMD_Q_E_MASK) !=
XDCFG_STATUS_DMA_CMD_Q_E_MASK) {
IntStatusReg = XDcfg_IntrGetStatus(DcfgInstPtr);
if ((IntStatusReg & XDCFG_IXR_DMA_DONE_MASK) !=
XDCFG_IXR_DMA_DONE_MASK){
/*
* Error state, transfer cannot occur
*/
fsbl_printf(DEBUG_INFO,"PCAP:IntStatus indicates error\r\n");
return XST_FAILURE;
}
else {
/*
* clear out the status
*/
XDcfg_IntrClear(DcfgInstPtr, XDCFG_IXR_DMA_DONE_MASK);
}
}
if ((StatusReg & XDCFG_STATUS_DMA_DONE_CNT_MASK) != 0) {
XDcfg_SetStatusRegister(DcfgInstPtr, StatusReg |
XDCFG_STATUS_DMA_DONE_CNT_MASK);
}
fsbl_printf(DEBUG_INFO,"PCAP:Clear done\r\n");
return XST_SUCCESS;
}
