/******************************************************************************
*
* Copyright (C) 2010 - 2014 Xilinx, Inc. All rights reserved.
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* Use of the Software is limited solely to applications:
* (a) running on a Xilinx device, or
* (b) that interact with a Xilinx device through a bus or interconnect.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* XILINX CONSORTIUM BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
* WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF
* OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
* SOFTWARE.
*
* Except as contained in this notice, the name of the Xilinx shall not be used
* in advertising or otherwise to promote the sale, use or other dealings in
* this Software without prior written authorization from Xilinx.
*
******************************************************************************/
/****************************************************************************/
/**
*
* @file xdevcfg.h
*
* The is the main header file for the Device Configuration Interface of the Zynq
* device. The device configuration interface has three main functionality.
* 1. AXI-PCAP
* 2. Security Policy
* 3. XADC
* This current version of the driver supports only the AXI-PCAP and Security
* Policy blocks. There is a separate driver for XADC.
*
* AXI-PCAP is used for download/upload an encrypted or decrypted bitstream.
* DMA embedded in the AXI PCAP provides the master interface to
* the Device configuration block for any DMA transfers. The data transfer can
* take place between the Tx/RxFIFOs of AXI-PCAP and memory (on chip
* RAM/DDR/peripheral memory).
*
* The current driver only supports the downloading the FPGA bitstream and
* readback of the decrypted image (sort of loopback).
* The driver does not know what information needs to be written to the FPGA to
* readback FPGA configuration register or memory data. The application above the
* driver should take care of creating the data that needs to be downloaded to
* the FPGA so that the bitstream can be readback.
* This driver also does not support the reading of the internal registers of the
* PCAP. The driver has no knowledge of the PCAP internals.
*
* Initialization and Configuration
*
* The device driver enables higher layer software (e.g., an application) to
* communicate with the Device Configuration device.
*
* XDcfg_CfgInitialize() API is used to initialize the Device Configuration
* Interface. The user needs to first call the XDcfg_LookupConfig() API which
* returns the Configuration structure pointer which is passed as a parameter to
* the XDcfg_CfgInitialize() API.
*
* Interrupts
* The Driver implements an interrupt handler to support the interrupts provided
* by this interface.
*
* Threads
*
* This driver is not thread safe. Any needs for threads or thread mutual
* exclusion must be satisfied by the layer above this driver.
*
* Asserts
*
* Asserts are used within all Xilinx drivers to enforce constraints on argument
* values. Asserts can be turned off on a system-wide basis by defining, at
* compile time, the NDEBUG identifier. By default, asserts are turned on and it
* is recommended that users leave asserts on during development.
*
* Building the driver
*
* The XDcfg driver is composed of several source files. This allows the user
* to build and link only those parts of the driver that are necessary.
*
*
*
*
* MODIFICATION HISTORY:
*
* Ver Who Date Changes
* ----- --- -------- ---------------------------------------------
* 1.00a hvm 02/07/11 First release
* 2.00a nm 05/31/12 Updated the driver for CR 660835 so that input length for
* source/destination to the XDcfg_InitiateDma, XDcfg_Transfer
* APIs is words (32 bit) and not bytes.
* Updated the notes for XDcfg_InitiateDma/XDcfg_Transfer APIs
* to add information that 2 LSBs of the Source/Destination
* address when equal to 2’b01 indicate the last DMA command
* of an overall transfer.
* Destination Address passed to this API for secure transfers
* instead of using 0xFFFFFFFF for CR 662197. This issue was
* resulting in the failure of secure transfers of
* non-bitstream images.
* 2.01a nm 07/07/12 Updated the XDcfg_IntrClear function to directly
* set the mask instead of oring it with the
* value read from the interrupt status register
* Added defines for the PS Version bits,
* removed the FIFO Flush bits from the
* Miscellaneous Control Reg.
* Added XDcfg_GetPsVersion, XDcfg_SelectIcapInterface
* and XDcfg_SelectPcapInterface APIs for CR 643295
* The user has to call the XDcfg_SelectIcapInterface API
* for the PL reconfiguration using AXI HwIcap.
* Updated the XDcfg_Transfer API to clear the
* QUARTER_PCAP_RATE_EN bit in the control register for
* non secure writes for CR 675543.
* 2.02a nm 01/31/13 Fixed CR# 679335.
* Added Setting and Clearing the internal PCAP loopback.
* Removed code for enabling/disabling AES engine as BootROM
* locks down this setting.
* Fixed CR# 681976.
* Skip Checking the PCFG_INIT in case of non-secure DMA
* loopback.
* Fixed CR# 699558.
* XDcfg_Transfer fails to transfer data in loopback mode.
* Fixed CR# 701348.
* Peripheral test fails with Running
* DcfgSelfTestExample() in SECURE bootmode.
* 2.03a nm 04/19/13 Fixed CR# 703728.
* Updated the register definitions as per the latest TRM
* version UG585 (v1.4) November 16, 2012.
* 3.0 adk 10/12/13 Updated as per the New Tcl API's
* 3.0 kpc 21/02/14 Added function prototype for XDcfg_ClearControlRegister
* 3.2 sb 08/25/14 Fixed XDcfg_PcapReadback() function
* updated driver code with != instead of ==,
* while checking for Interrupt Status with DMA and
* PCAP Done Mask
* ((XDcfg_ReadReg(InstancePtr->Config.BaseAddr,
* XDCFG_INT_STS_OFFSET) &
* XDCFG_IXR_D_P_DONE_MASK) !=
* XDCFG_IXR_D_P_DONE_MASK);
* A new example has been added to read back the
* configuration registers from the PL region.
* xdevcfg_reg_readback_example.c
*
*
*
******************************************************************************/
#ifndef XDCFG_H /* prevent circular inclusions */
#define XDCFG_H /* by using protection macros */
/***************************** Include Files *********************************/
#include "xdevcfg_hw.h"
#include "xstatus.h"
#include "xil_assert.h"
#ifdef __cplusplus
extern "C" {
#endif
/************************** Constant Definitions *****************************/
/* Types of PCAP transfers */
#define XDCFG_NON_SECURE_PCAP_WRITE 1
#define XDCFG_SECURE_PCAP_WRITE 2
#define XDCFG_PCAP_READBACK 3
#define XDCFG_CONCURRENT_SECURE_READ_WRITE 4
#define XDCFG_CONCURRENT_NONSEC_READ_WRITE 5
/**************************** Type Definitions *******************************/
/**
* The handler data type allows the user to define a callback function to
* respond to interrupt events in the system. This function is executed
* in interrupt context, so amount of processing should be minimized.
*
* @param CallBackRef is the callback reference passed in by the upper
* layer when setting the callback functions, and passed back to
* the upper layer when the callback is invoked. Its type is
* unimportant to the driver component, so it is a void pointer.
* @param Status is the Interrupt status of the XDcfg device.
*/
typedef void (*XDcfg_IntrHandler) (void *CallBackRef, u32 Status);
/**
* This typedef contains configuration information for the device.
*/
typedef struct {
u16 DeviceId; /**< Unique ID of device */
u32 BaseAddr; /**< Base address of the device */
} XDcfg_Config;
/**
* The XDcfg driver instance data.
*/
typedef struct {
XDcfg_Config Config; /**< Hardware Configuration */
u32 IsReady; /**< Device is initialized and ready */
u32 IsStarted; /**< Device Configuration Interface
* is running
*/
XDcfg_IntrHandler StatusHandler; /* Event handler function */
void *CallBackRef; /* Callback reference for event handler */
} XDcfg;
/****************************************************************************/
/**
*
* Unlock the Device Config Interface block.
*
* @param InstancePtr is a pointer to the instance of XDcfg driver.
*
* @return None.
*
* @note C-style signature:
* void XDcfg_Unlock(XDcfg* InstancePtr)
*
*****************************************************************************/
#define XDcfg_Unlock(InstancePtr) \
XDcfg_WriteReg((InstancePtr)->Config.BaseAddr, \
XDCFG_UNLOCK_OFFSET, XDCFG_UNLOCK_DATA)
/****************************************************************************/
/**
*
* Get the version number of the PS from the Miscellaneous Control Register.
*
* @param InstancePtr is a pointer to the instance of XDcfg driver.
*
* @return Version of the PS.
*
* @note C-style signature:
* void XDcfg_GetPsVersion(XDcfg* InstancePtr)
*
*****************************************************************************/
#define XDcfg_GetPsVersion(InstancePtr) \
((XDcfg_ReadReg((InstancePtr)->Config.BaseAddr, \
XDCFG_MCTRL_OFFSET)) & \
XDCFG_MCTRL_PCAP_PS_VERSION_MASK) >> \
XDCFG_MCTRL_PCAP_PS_VERSION_SHIFT
/****************************************************************************/
/**
*
* Read the multiboot config register value.
*
* @param InstancePtr is a pointer to the instance of XDcfg driver.
*
* @return None.
*
* @note C-style signature:
* u32 XDcfg_ReadMultiBootConfig(XDcfg* InstancePtr)
*
*****************************************************************************/
#define XDcfg_ReadMultiBootConfig(InstancePtr) \
XDcfg_ReadReg((InstancePtr)->Config.BaseAddr + \
XDCFG_MULTIBOOT_ADDR_OFFSET)
/****************************************************************************/
/**
*
* Selects ICAP interface for reconfiguration after the initial configuration
* of the PL.
*
* @param InstancePtr is a pointer to the instance of XDcfg driver.
*
* @return None.
*
* @note C-style signature:
* void XDcfg_SelectIcapInterface(XDcfg* InstancePtr)
*
*****************************************************************************/
#define XDcfg_SelectIcapInterface(InstancePtr) \
XDcfg_WriteReg((InstancePtr)->Config.BaseAddr, XDCFG_CTRL_OFFSET, \
((XDcfg_ReadReg((InstancePtr)->Config.BaseAddr, XDCFG_CTRL_OFFSET)) \
& ( ~XDCFG_CTRL_PCAP_PR_MASK)))
/****************************************************************************/
/**
*
* Selects PCAP interface for reconfiguration after the initial configuration
* of the PL.
*
* @param InstancePtr is a pointer to the instance of XDcfg driver.
*
* @return None.
*
* @note C-style signature:
* void XDcfg_SelectPcapInterface(XDcfg* InstancePtr)
*
*****************************************************************************/
#define XDcfg_SelectPcapInterface(InstancePtr) \
XDcfg_WriteReg((InstancePtr)->Config.BaseAddr, XDCFG_CTRL_OFFSET, \
((XDcfg_ReadReg((InstancePtr)->Config.BaseAddr, XDCFG_CTRL_OFFSET)) \
| XDCFG_CTRL_PCAP_PR_MASK))
/************************** Function Prototypes ******************************/
/*
* Lookup configuration in xdevcfg_sinit.c.
*/
XDcfg_Config *XDcfg_LookupConfig(u16 DeviceId);
/*
* Selftest function in xdevcfg_selftest.c
*/
int XDcfg_SelfTest(XDcfg *InstancePtr);
/*
* Interface functions in xdevcfg.c
*/
int XDcfg_CfgInitialize(XDcfg *InstancePtr,
XDcfg_Config *ConfigPtr, u32 EffectiveAddress);
void XDcfg_EnablePCAP(XDcfg *InstancePtr);
void XDcfg_DisablePCAP(XDcfg *InstancePtr);
void XDcfg_SetControlRegister(XDcfg *InstancePtr, u32 Mask);
void XDcfg_ClearControlRegister(XDcfg *InstancePtr, u32 Mask);
u32 XDcfg_GetControlRegister(XDcfg *InstancePtr);
void XDcfg_SetLockRegister(XDcfg *InstancePtr, u32 Data);
u32 XDcfg_GetLockRegister(XDcfg *InstancePtr);
void XDcfg_SetConfigRegister(XDcfg *InstancePtr, u32 Data);
u32 XDcfg_GetConfigRegister(XDcfg *InstancePtr);
void XDcfg_SetStatusRegister(XDcfg *InstancePtr, u32 Data);
u32 XDcfg_GetStatusRegister(XDcfg *InstancePtr);
void XDcfg_SetRomShadowRegister(XDcfg *InstancePtr, u32 Data);
u32 XDcfg_GetSoftwareIdRegister(XDcfg *InstancePtr);
void XDcfg_SetMiscControlRegister(XDcfg *InstancePtr, u32 Mask);
u32 XDcfg_GetMiscControlRegister(XDcfg *InstancePtr);
u32 XDcfg_IsDmaBusy(XDcfg *InstancePtr);
void XDcfg_InitiateDma(XDcfg *InstancePtr, u32 SourcePtr, u32 DestPtr,
u32 SrcWordLength, u32 DestWordLength);
u32 XDcfg_Transfer(XDcfg *InstancePtr,
void *SourcePtr, u32 SrcWordLength,
void *DestPtr, u32 DestWordLength,
u32 TransferType);
/*
* Interrupt related function prototypes implemented in xdevcfg_intr.c
*/
void XDcfg_IntrEnable(XDcfg *InstancePtr, u32 Mask);
void XDcfg_IntrDisable(XDcfg *InstancePtr, u32 Mask);
u32 XDcfg_IntrGetEnabled(XDcfg *InstancePtr);
u32 XDcfg_IntrGetStatus(XDcfg *InstancePtr);
void XDcfg_IntrClear(XDcfg *InstancePtr, u32 Mask);
void XDcfg_InterruptHandler(XDcfg *InstancePtr);
void XDcfg_SetHandler(XDcfg *InstancePtr, void *CallBackFunc,
void *CallBackRef);
#ifdef __cplusplus
}
#endif
#endif /* end of protection macro */