bsps/xil: Import Xilinx Cortex-R5 support

This imports Xilinx support code for the MPU and cache on Cortex-R5
cores. This was imported as specified in bsps/shared/xil/VERSION.

bsps/include/xil/arm/cortexr5/xil_mpu.h

@@ -0,0 +1,117 @@
+/******************************************************************************
+* Copyright (c) 2014 - 2022 Xilinx, Inc.  All rights reserved.
+* SPDX-License-Identifier: MIT
+******************************************************************************/
+
+/*****************************************************************************/
+/**
+* @file xil_mmu.h
+*
+* @addtogroup r5_mpu_apis Cortex R5 Processor MPU specific APIs
+*
+* MPU functions provides access to MPU operations such as enable MPU, disable
+* MPU and set attribute for section of memory.
+* Boot code invokes Init_MPU function to configure the MPU. A total of 10 MPU
+* regions are allocated with another 6 being free for users. Overview of the
+* memory attributes for different MPU regions is as given below,
+*
+*|                       | Memory Range            | Attributes of MPURegion     |
+*|-----------------------|-------------------------|-----------------------------|
+*| DDR                   | 0x00000000 - 0x7FFFFFFF | Normal write-back Cacheable |
+*| PL                    | 0x80000000 - 0xBFFFFFFF | Strongly Ordered            |
+*| QSPI                  | 0xC0000000 - 0xDFFFFFFF | Device Memory               |
+*| PCIe                  | 0xE0000000 - 0xEFFFFFFF | Device Memory               |
+*| STM_CORESIGHT         | 0xF8000000 - 0xF8FFFFFF | Device Memory               |
+*| RPU_R5_GIC            | 0xF9000000 - 0xF90FFFFF | Device memory               |
+*| FPS                   | 0xFD000000 - 0xFDFFFFFF | Device Memory               |
+*| LPS                   | 0xFE000000 - 0xFFFFFFFF | Device Memory               |
+*| OCM                   | 0xFFFC0000 - 0xFFFFFFFF | Normal write-back Cacheable |
+*
+*
+* @note
+* For a system where DDR is less than 2GB, region after DDR and before PL is
+* marked as undefined in translation table. Memory range 0xFE000000-0xFEFFFFFF is
+* allocated for upper LPS slaves, where as memory region 0xFF000000-0xFFFFFFFF is
+* allocated for lower LPS slaves.
+*
+* @{
+* <pre>
+* MODIFICATION HISTORY:
+*
+* Ver   Who  Date     Changes
+* ----- ---- -------- ---------------------------------------------------
+* 5.00  pkp  02/10/14 Initial version
+* 6.4   asa  08/16/17 Added many APIs for MPU access to make MPU usage
+* 					  user-friendly. The APIs added are: Xil_UpdateMPUConfig,
+* 					  Xil_GetMPUConfig, Xil_GetNumOfFreeRegions,
+* 					  Xil_GetNextMPURegion, Xil_DisableMPURegionByRegNum,
+* 					  Xil_GetMPUFreeRegMask, Xil_SetMPURegionByRegNum, and
+* 					  Xil_InitializeExistingMPURegConfig.
+* 					  Added a new array of structure of type XMpuConfig to
+* 					  represent the MPU configuration table.
+* 7.7	sk   01/10/22 Modify Xil_SetTlbAttributes function argument name to fix
+* 		      misra_c_2012_rule_8_3 violation.
+* </pre>
+*
+
+*
+*
+******************************************************************************/
+/**
+ *@cond nocomments
+ */
+
+#ifndef XIL_MPU_H
+#define XIL_MPU_H
+
+#ifdef __cplusplus
+extern "C" {
+#endif /* __cplusplus */
+#include "xil_types.h"
+/***************************** Include Files *********************************/
+
+/***************** Macros (Inline Functions) Definitions *********************/
+#define MPU_REG_DISABLED		0U
+#define MPU_REG_ENABLED			1U
+#define MAX_POSSIBLE_MPU_REGS	16U
+/**************************** Type Definitions *******************************/
+struct XMpuConfig{
+	u32 RegionStatus; /* Enabled or disabled */
+	INTPTR BaseAddress;/* MPU region base address */
+	u64 Size; /* MPU region size address */
+	u32 Attribute; /* MPU region size attribute */
+};
+
+typedef struct XMpuConfig XMpu_Config[MAX_POSSIBLE_MPU_REGS];
+
+extern XMpu_Config Mpu_Config;
+/************************** Constant Definitions *****************************/
+
+/************************** Variable Definitions *****************************/
+
+/************************** Function Prototypes ******************************/
+/**
+ *@endcond
+ */
+
+void Xil_SetTlbAttributes(INTPTR addr, u32 attrib);
+void Xil_EnableMPU(void);
+void Xil_DisableMPU(void);
+u32 Xil_SetMPURegion(INTPTR addr, u64 size, u32 attrib);
+u32 Xil_UpdateMPUConfig(u32 reg_num, INTPTR address, u32 size, u32 attrib);
+void Xil_GetMPUConfig (XMpu_Config mpuconfig);
+u32 Xil_GetNumOfFreeRegions (void);
+u32 Xil_GetNextMPURegion(void);
+u32 Xil_DisableMPURegionByRegNum (u32 reg_num);
+u16 Xil_GetMPUFreeRegMask (void);
+u32 Xil_SetMPURegionByRegNum (u32 reg_num, INTPTR addr, u64 size, u32 attrib);
+void* Xil_MemMap(UINTPTR Physaddr, size_t size, u32 flags);
+
+#ifdef __cplusplus
+}
+#endif /* __cplusplus */
+
+#endif /* XIL_MPU_H */
+/**
+* @} End of "addtogroup r5_mpu_apis".
+*/