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Current File : //sys/contrib/octeon-sdk/cvmx-bootloader.h |
/***********************license start*************** * Copyright (c) 2003-2010 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. * This Software, including technical data, may be subject to U.S. export control * laws, including the U.S. Export Administration Act and its associated * regulations, and may be subject to export or import regulations in other * countries. * 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. ***********************license end**************************************/ #ifndef __CVMX_BOOTLOADER__ #define __CVMX_BOOTLOADER__ /** * @file * * Bootloader definitions that are shared with other programs * * <hr>$Revision: 49448 $<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 2 /* Revision history * 1.1 Initial released revision. (SDK 1.9) * 1.2 TLB based relocatable image (SDK 2.0) * * */ /* offsets to struct bootloader_header fields for assembly use */ #define GOT_ADDRESS_OFFSET 48 #define LOOKUP_STEP (64*1024) #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 */ uint32_t reserved1; uint32_t reserved2; uint32_t reserved3; uint32_t reserved4; 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_UNKNOWN = 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 /* Maximum address to look for start of normal bootloader */ #define MAX_NOR_SEARCH_ADDR 0x100000 /* 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__ */