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- /*
- * Copyright (C) 2016 Michal Simek <michals@xilinx.com>
- * Copyright (C) 2015 Nathan Rossi <nathan@nathanrossi.com>
- *
- * SPDX-License-Identifier: GPL-2.0+
- *
- * The following Boot Header format/structures and values are defined in the
- * following documents:
- * * ug1085 ZynqMP TRM (Chapter 9, Table 9-3)
- *
- * Expected Header Size = 0x9C0
- * Forced as 'little' endian, 32-bit words
- *
- * 0x 0 - Interrupt table (8 words)
- * ... (Default value = 0xeafffffe)
- * 0x 1f
- * 0x 20 - Width detection
- * * DEFAULT_WIDTHDETECTION 0xaa995566
- * 0x 24 - Image identifier
- * * DEFAULT_IMAGEIDENTIFIER 0x584c4e58
- * 0x 28 - Encryption
- * * 0x00000000 - None
- * * 0xa5c3c5a3 - eFuse
- * * 0xa5c3c5a7 - obfuscated key in eFUSE
- * * 0x3a5c3c5a - bbRam
- * * 0xa35c7ca5 - obfuscated key in boot header
- * 0x 2C - Image load
- * 0x 30 - Image offset
- * 0x 34 - PFW image length
- * 0x 38 - Total PFW image length
- * 0x 3C - Image length
- * 0x 40 - Total image length
- * 0x 44 - Image attributes
- * 0x 48 - Header checksum
- * 0x 4c - Obfuscated key
- * ...
- * 0x 68
- * 0x 6c - Reserved
- * 0x 70 - User defined
- * ...
- * 0x 9c
- * 0x a0 - Secure header initialization vector
- * ...
- * 0x a8
- * 0x ac - Obfuscated key initialization vector
- * ...
- * 0x b4
- * 0x b8 - Register Initialization, 511 Address and Data word pairs
- * * List is terminated with an address of 0xffffffff or
- * ... * at the max number of entries
- * 0x8b4
- * 0x8b8 - Reserved
- * ...
- * 0x9bf
- * 0x9c0 - Data/Image starts here or above
- */
- #include "imagetool.h"
- #include "mkimage.h"
- #include <image.h>
- #define HEADER_INTERRUPT_DEFAULT (cpu_to_le32(0xeafffffe))
- #define HEADER_REGINIT_NULL (cpu_to_le32(0xffffffff))
- #define HEADER_WIDTHDETECTION (cpu_to_le32(0xaa995566))
- #define HEADER_IMAGEIDENTIFIER (cpu_to_le32(0x584c4e58))
- enum {
- ENCRYPTION_EFUSE = 0xa5c3c5a3,
- ENCRYPTION_OEFUSE = 0xa5c3c5a7,
- ENCRYPTION_BBRAM = 0x3a5c3c5a,
- ENCRYPTION_OBBRAM = 0xa35c7ca5,
- ENCRYPTION_NONE = 0x0,
- };
- struct zynqmp_reginit {
- uint32_t address;
- uint32_t data;
- };
- #define HEADER_INTERRUPT_VECTORS 8
- #define HEADER_REGINITS 256
- struct zynqmp_header {
- uint32_t interrupt_vectors[HEADER_INTERRUPT_VECTORS]; /* 0x0 */
- uint32_t width_detection; /* 0x20 */
- uint32_t image_identifier; /* 0x24 */
- uint32_t encryption; /* 0x28 */
- uint32_t image_load; /* 0x2c */
- uint32_t image_offset; /* 0x30 */
- uint32_t pfw_image_length; /* 0x34 */
- uint32_t total_pfw_image_length; /* 0x38 */
- uint32_t image_size; /* 0x3c */
- uint32_t image_stored_size; /* 0x40 */
- uint32_t image_attributes; /* 0x44 */
- uint32_t checksum; /* 0x48 */
- uint32_t __reserved1[27]; /* 0x4c */
- struct zynqmp_reginit register_init[HEADER_REGINITS]; /* 0xb8 */
- uint32_t __reserved4[66]; /* 0x9c0 */
- };
- static struct zynqmp_header zynqmpimage_header;
- static uint32_t zynqmpimage_checksum(struct zynqmp_header *ptr)
- {
- uint32_t checksum = 0;
- if (ptr == NULL)
- return 0;
- checksum += le32_to_cpu(ptr->width_detection);
- checksum += le32_to_cpu(ptr->image_identifier);
- checksum += le32_to_cpu(ptr->encryption);
- checksum += le32_to_cpu(ptr->image_load);
- checksum += le32_to_cpu(ptr->image_offset);
- checksum += le32_to_cpu(ptr->pfw_image_length);
- checksum += le32_to_cpu(ptr->total_pfw_image_length);
- checksum += le32_to_cpu(ptr->image_size);
- checksum += le32_to_cpu(ptr->image_stored_size);
- checksum += le32_to_cpu(ptr->image_attributes);
- checksum = ~checksum;
- return cpu_to_le32(checksum);
- }
- static void zynqmpimage_default_header(struct zynqmp_header *ptr)
- {
- int i;
- if (ptr == NULL)
- return;
- ptr->width_detection = HEADER_WIDTHDETECTION;
- ptr->image_attributes = 0x800;
- ptr->image_identifier = HEADER_IMAGEIDENTIFIER;
- ptr->encryption = cpu_to_le32(ENCRYPTION_NONE);
- /* Setup not-supported/constant/reserved fields */
- for (i = 0; i < HEADER_INTERRUPT_VECTORS; i++)
- ptr->interrupt_vectors[i] = HEADER_INTERRUPT_DEFAULT;
- for (i = 0; i < HEADER_REGINITS; i++) {
- ptr->register_init[i].address = HEADER_REGINIT_NULL;
- ptr->register_init[i].data = 0;
- }
- /*
- * Certain reserved fields are required to be set to 0, ensure they are
- * set as such.
- */
- ptr->pfw_image_length = 0x0;
- ptr->total_pfw_image_length = 0x0;
- }
- /* mkimage glue functions */
- static int zynqmpimage_verify_header(unsigned char *ptr, int image_size,
- struct image_tool_params *params)
- {
- struct zynqmp_header *zynqhdr = (struct zynqmp_header *)ptr;
- if (image_size < sizeof(struct zynqmp_header))
- return -1;
- if (zynqhdr->width_detection != HEADER_WIDTHDETECTION)
- return -1;
- if (zynqhdr->image_identifier != HEADER_IMAGEIDENTIFIER)
- return -1;
- if (zynqmpimage_checksum(zynqhdr) != zynqhdr->checksum)
- return -1;
- return 0;
- }
- static void zynqmpimage_print_header(const void *ptr)
- {
- struct zynqmp_header *zynqhdr = (struct zynqmp_header *)ptr;
- int i;
- printf("Image Type : Xilinx Zynq Boot Image support\n");
- printf("Image Offset : 0x%08x\n", le32_to_cpu(zynqhdr->image_offset));
- printf("Image Size : %lu bytes (%lu bytes packed)\n",
- (unsigned long)le32_to_cpu(zynqhdr->image_size),
- (unsigned long)le32_to_cpu(zynqhdr->image_stored_size));
- printf("Image Load : 0x%08x\n", le32_to_cpu(zynqhdr->image_load));
- printf("Checksum : 0x%08x\n", le32_to_cpu(zynqhdr->checksum));
- for (i = 0; i < HEADER_INTERRUPT_VECTORS; i++) {
- if (zynqhdr->interrupt_vectors[i] == HEADER_INTERRUPT_DEFAULT)
- continue;
- printf("Modified Interrupt Vector Address [%d]: 0x%08x\n", i,
- le32_to_cpu(zynqhdr->interrupt_vectors[i]));
- }
- for (i = 0; i < HEADER_REGINITS; i++) {
- if (zynqhdr->register_init[i].address == HEADER_REGINIT_NULL)
- break;
- if (i == 0)
- printf("Custom Register Initialization:\n");
- printf(" @ 0x%08x -> 0x%08x\n",
- le32_to_cpu(zynqhdr->register_init[i].address),
- le32_to_cpu(zynqhdr->register_init[i].data));
- }
- }
- static int zynqmpimage_check_params(struct image_tool_params *params)
- {
- if (!params)
- return 0;
- if (params->addr != 0x0) {
- fprintf(stderr, "Error: Load Address cannot be specified.\n");
- return -1;
- }
- /*
- * If the entry point is specified ensure it is 64 byte aligned.
- */
- if (params->eflag && (params->ep % 64 != 0)) {
- fprintf(stderr,
- "Error: Entry Point must be aligned to a 64-byte boundary.\n");
- return -1;
- }
- return !(params->lflag || params->dflag);
- }
- static int zynqmpimage_check_image_types(uint8_t type)
- {
- if (type == IH_TYPE_ZYNQMPIMAGE)
- return EXIT_SUCCESS;
- return EXIT_FAILURE;
- }
- static void zynqmpimage_set_header(void *ptr, struct stat *sbuf, int ifd,
- struct image_tool_params *params)
- {
- struct zynqmp_header *zynqhdr = (struct zynqmp_header *)ptr;
- zynqmpimage_default_header(zynqhdr);
- /* place image directly after header */
- zynqhdr->image_offset =
- cpu_to_le32((uint32_t)sizeof(struct zynqmp_header));
- zynqhdr->image_size = cpu_to_le32(params->file_size -
- sizeof(struct zynqmp_header));
- zynqhdr->image_stored_size = zynqhdr->image_size;
- zynqhdr->image_load = 0xfffc0000;
- if (params->eflag)
- zynqhdr->image_load = cpu_to_le32((uint32_t)params->ep);
- zynqhdr->checksum = zynqmpimage_checksum(zynqhdr);
- }
- U_BOOT_IMAGE_TYPE(
- zynqmpimage,
- "Xilinx ZynqMP Boot Image support",
- sizeof(struct zynqmp_header),
- (void *)&zynqmpimage_header,
- zynqmpimage_check_params,
- zynqmpimage_verify_header,
- zynqmpimage_print_header,
- zynqmpimage_set_header,
- NULL,
- zynqmpimage_check_image_types,
- NULL,
- NULL
- );
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