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/***********************license start***************
* Copyright (c) 2008 Cavium Networks (support@cavium.com). All rights
* reserved.
*
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are
* met:
*
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
*
* * Redistributions in binary form must reproduce the above
* copyright notice, this list of conditions and the following
* disclaimer in the documentation and/or other materials provided
* with the distribution.
*
* * Neither the name of Cavium Networks nor the names of
* its contributors may be used to endorse or promote products
* derived from this software without specific prior written
* permission.
*
* TO THE MAXIMUM EXTENT PERMITTED BY LAW, THE SOFTWARE IS PROVIDED "AS IS"
* AND WITH ALL FAULTS AND CAVIUM NETWORKS MAKES NO PROMISES, REPRESENTATIONS
* OR WARRANTIES, EITHER EXPRESS, IMPLIED, STATUTORY, OR OTHERWISE, WITH
* RESPECT TO THE SOFTWARE, INCLUDING ITS CONDITION, ITS CONFORMITY TO ANY
* REPRESENTATION OR DESCRIPTION, OR THE EXISTENCE OF ANY LATENT OR PATENT
* DEFECTS, AND CAVIUM SPECIFICALLY DISCLAIMS ALL IMPLIED (IF ANY) WARRANTIES
* OF TITLE, MERCHANTABILITY, NONINFRINGEMENT, FITNESS FOR A PARTICULAR
* PURPOSE, LACK OF VIRUSES, ACCURACY OR COMPLETENESS, QUIET ENJOYMENT, QUIET
* POSSESSION OR CORRESPONDENCE TO DESCRIPTION. THE ENTIRE RISK ARISING OUT
* OF USE OR PERFORMANCE OF THE SOFTWARE LIES WITH YOU.
*
*
* For any questions regarding licensing please contact marketing@caviumnetworks.com
*
***********************license end**************************************/
#ifndef __CVMX_BOOTLOADER__
#define __CVMX_BOOTLOADER__
/**
* @file
*
* Bootloader definitions that are shared with other programs
*
* <hr>$Revision: 41586 $<hr>
*/
/* The bootloader_header_t structure defines the header that is present
** at the start of binary u-boot images. This header is used to locate the bootloader
** image in NAND, and also to allow verification of images for normal NOR booting.
** This structure is placed at the beginning of a bootloader binary image, and remains
** in the executable code.
*/
#define BOOTLOADER_HEADER_MAGIC 0x424f4f54 /* "BOOT" in ASCII */
#define BOOTLOADER_HEADER_COMMENT_LEN 64
#define BOOTLOADER_HEADER_VERSION_LEN 64
#define BOOTLOADER_HEADER_MAX_SIZE 0x200 /* limited by the space to the next exception handler */
#define BOOTLOADER_HEADER_CURRENT_MAJOR_REV 1
#define BOOTLOADER_HEADER_CURRENT_MINOR_REV 1
/* offsets to struct bootloader_header fields for assembly use */
#define MAGIC_OFFST 8
#define HCRC_OFFST 12
#define HLEN_OFFST 16
#define DLEN_OFFST 24
#define DCRC_OFFST 28
#define GOT_OFFST 48
#define LOOKUP_STEP 8192
#ifndef __ASSEMBLY__
typedef struct bootloader_header
{
uint32_t jump_instr; /* Jump to executable code following the
** header. This allows this header to
** be (and remain) part of the executable image)
*/
uint32_t nop_instr; /* Must be 0x0 */
uint32_t magic; /* Magic number to identify header */
uint32_t hcrc; /* CRC of all of header excluding this field */
uint16_t hlen; /* Length of header in bytes */
uint16_t maj_rev; /* Major revision */
uint16_t min_rev; /* Minor revision */
uint16_t board_type; /* Board type that the image is for */
uint32_t dlen; /* Length of data (immediately following header) in bytes */
uint32_t dcrc; /* CRC of data */
uint64_t address; /* Mips virtual address */
uint32_t flags;
uint16_t image_type; /* Defined in bootloader_image_t enum */
uint16_t resv0; /* pad */
/* The next 4 fields are placed in compile-time, not by the utility */
uint32_t got_address; /* compiled got address position in the image */
uint32_t got_num_entries; /* number of got entries */
uint32_t compiled_start; /* compaled start of the image address */
uint32_t image_start; /* relocated start of image address */
char comment_string[BOOTLOADER_HEADER_COMMENT_LEN]; /* Optional, for descriptive purposes */
char version_string[BOOTLOADER_HEADER_VERSION_LEN]; /* Optional, for descriptive purposes */
} __attribute__((packed)) bootloader_header_t;
/* Defines for flag field */
#define BL_HEADER_FLAG_FAILSAFE (1)
typedef enum
{
BL_HEADER_IMAGE_UKNOWN = 0x0,
BL_HEADER_IMAGE_STAGE2, /* Binary bootloader stage2 image (NAND boot) */
BL_HEADER_IMAGE_STAGE3, /* Binary bootloader stage3 image (NAND boot)*/
BL_HEADER_IMAGE_NOR, /* Binary bootloader for NOR boot */
BL_HEADER_IMAGE_PCIBOOT, /* Binary bootloader for PCI boot */
BL_HEADER_IMAGE_UBOOT_ENV, /* Environment for u-boot */
BL_HEADER_IMAGE_MAX,
/* Range for customer private use. Will not be used by Cavium Networks */
BL_HEADER_IMAGE_CUST_RESERVED_MIN = 0x1000,
BL_HEADER_IMAGE_CUST_RESERVED_MAX = 0x1fff,
} bootloader_image_t;
#endif /* __ASSEMBLY__ */
/* Maximum address searched for NAND boot images and environments. This is used
** by stage1 and stage2. */
#define MAX_NAND_SEARCH_ADDR 0x400000
/* Defines for RAM based environment set by the host or the previous bootloader
** in a chain boot configuration. */
#define U_BOOT_RAM_ENV_ADDR (0x1000)
#define U_BOOT_RAM_ENV_SIZE (0x1000)
#define U_BOOT_RAM_ENV_CRC_SIZE (0x4)
#endif /* __CVMX_BOOTLOADER__ */
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