This tool can now generate proper image for "BootStream" files. NOTE: This tool now works only for NAND. Signed-off-by: Marek Vasut <marek.vasut@gmail.com> Cc: Stefano Babic <sbabic@denx.de> Cc: Wolfgang Denk <wd@denx.de> Cc: Detlev Zundel <dzu@denx.de>master
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/*
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* Freescale i.MX28 image generator |
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* |
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* Copyright (C) 2011 Marek Vasut <marek.vasut@gmail.com> |
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* on behalf of DENX Software Engineering GmbH |
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* |
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* See file CREDITS for list of people who contributed to this |
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* project. |
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* |
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* This program is free software; you can redistribute it and/or |
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* modify it under the terms of the GNU General Public License as |
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* published by the Free Software Foundation; either version 2 of |
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* the License, or (at your option) any later version. |
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* |
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* This program is distributed in the hope that it will be useful, |
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* but WITHOUT ANY WARRANTY; without even the implied warranty of |
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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* GNU General Public License for more details. |
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* |
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* You should have received a copy of the GNU General Public License |
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* along with this program; if not, write to the Free Software |
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, |
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* MA 02111-1307 USA |
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*/ |
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#include <fcntl.h> |
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#include <sys/stat.h> |
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#include <sys/types.h> |
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#include <unistd.h> |
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#include "compiler.h" |
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/*
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* Default BCB layout. |
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* |
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* TWEAK this if you have blown any OCOTP fuses. |
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*/ |
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#define STRIDE_PAGES 64 |
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#define STRIDE_COUNT 4 |
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/*
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* Layout for 256Mb big NAND with 2048b page size, 64b OOB size and |
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* 128kb erase size. |
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* |
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* TWEAK this if you have different kind of NAND chip. |
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*/ |
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uint32_t nand_writesize = 2048; |
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uint32_t nand_oobsize = 64; |
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uint32_t nand_erasesize = 128 * 1024; |
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/*
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* Sector on which the SigmaTel boot partition (0x53) starts. |
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*/ |
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uint32_t sd_sector = 2048; |
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/*
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* Each of the U-Boot bootstreams is at maximum 1MB big. |
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* |
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* TWEAK this if, for some wild reason, you need to boot bigger image. |
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*/ |
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#define MAX_BOOTSTREAM_SIZE (1 * 1024 * 1024) |
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/* i.MX28 NAND controller-specific constants. DO NOT TWEAK! */ |
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#define MXS_NAND_DMA_DESCRIPTOR_COUNT 4 |
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#define MXS_NAND_CHUNK_DATA_CHUNK_SIZE 512 |
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#define MXS_NAND_METADATA_SIZE 10 |
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#define MXS_NAND_COMMAND_BUFFER_SIZE 32 |
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struct mx28_nand_fcb { |
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uint32_t checksum; |
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uint32_t fingerprint; |
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uint32_t version; |
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struct { |
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uint8_t data_setup; |
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uint8_t data_hold; |
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uint8_t address_setup; |
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uint8_t dsample_time; |
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uint8_t nand_timing_state; |
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uint8_t rea; |
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uint8_t rloh; |
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uint8_t rhoh; |
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} timing; |
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uint32_t page_data_size; |
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uint32_t total_page_size; |
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uint32_t sectors_per_block; |
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uint32_t number_of_nands; /* Ignored */ |
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uint32_t total_internal_die; /* Ignored */ |
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uint32_t cell_type; /* Ignored */ |
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uint32_t ecc_block_n_ecc_type; |
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uint32_t ecc_block_0_size; |
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uint32_t ecc_block_n_size; |
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uint32_t ecc_block_0_ecc_type; |
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uint32_t metadata_bytes; |
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uint32_t num_ecc_blocks_per_page; |
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uint32_t ecc_block_n_ecc_level_sdk; /* Ignored */ |
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uint32_t ecc_block_0_size_sdk; /* Ignored */ |
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uint32_t ecc_block_n_size_sdk; /* Ignored */ |
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uint32_t ecc_block_0_ecc_level_sdk; /* Ignored */ |
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uint32_t num_ecc_blocks_per_page_sdk; /* Ignored */ |
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uint32_t metadata_bytes_sdk; /* Ignored */ |
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uint32_t erase_threshold; |
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uint32_t boot_patch; |
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uint32_t patch_sectors; |
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uint32_t firmware1_starting_sector; |
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uint32_t firmware2_starting_sector; |
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uint32_t sectors_in_firmware1; |
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uint32_t sectors_in_firmware2; |
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uint32_t dbbt_search_area_start_address; |
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uint32_t badblock_marker_byte; |
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uint32_t badblock_marker_start_bit; |
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uint32_t bb_marker_physical_offset; |
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}; |
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struct mx28_nand_dbbt { |
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uint32_t checksum; |
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uint32_t fingerprint; |
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uint32_t version; |
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uint32_t number_bb; |
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uint32_t number_2k_pages_bb; |
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}; |
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struct mx28_nand_bbt { |
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uint32_t nand; |
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uint32_t number_bb; |
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uint32_t badblock[510]; |
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}; |
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struct mx28_sd_drive_info { |
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uint32_t chip_num; |
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uint32_t drive_type; |
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uint32_t tag; |
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uint32_t first_sector_number; |
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uint32_t sector_count; |
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}; |
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struct mx28_sd_config_block { |
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uint32_t signature; |
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uint32_t primary_boot_tag; |
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uint32_t secondary_boot_tag; |
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uint32_t num_copies; |
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struct mx28_sd_drive_info drv_info[1]; |
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}; |
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static inline uint32_t mx28_nand_ecc_size_in_bits(uint32_t ecc_strength) |
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{ |
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return ecc_strength * 13; |
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} |
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static inline uint32_t mx28_nand_get_ecc_strength(uint32_t page_data_size, |
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uint32_t page_oob_size) |
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{ |
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if (page_data_size == 2048) |
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return 8; |
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if (page_data_size == 4096) { |
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if (page_oob_size == 128) |
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return 8; |
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if (page_oob_size == 218) |
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return 16; |
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} |
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return 0; |
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} |
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static inline uint32_t mx28_nand_get_mark_offset(uint32_t page_data_size, |
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uint32_t ecc_strength) |
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{ |
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uint32_t chunk_data_size_in_bits; |
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uint32_t chunk_ecc_size_in_bits; |
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uint32_t chunk_total_size_in_bits; |
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uint32_t block_mark_chunk_number; |
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uint32_t block_mark_chunk_bit_offset; |
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uint32_t block_mark_bit_offset; |
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chunk_data_size_in_bits = MXS_NAND_CHUNK_DATA_CHUNK_SIZE * 8; |
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chunk_ecc_size_in_bits = mx28_nand_ecc_size_in_bits(ecc_strength); |
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chunk_total_size_in_bits = |
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chunk_data_size_in_bits + chunk_ecc_size_in_bits; |
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/* Compute the bit offset of the block mark within the physical page. */ |
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block_mark_bit_offset = page_data_size * 8; |
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/* Subtract the metadata bits. */ |
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block_mark_bit_offset -= MXS_NAND_METADATA_SIZE * 8; |
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/*
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* Compute the chunk number (starting at zero) in which the block mark |
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* appears. |
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*/ |
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block_mark_chunk_number = |
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block_mark_bit_offset / chunk_total_size_in_bits; |
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/*
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* Compute the bit offset of the block mark within its chunk, and |
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* validate it. |
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*/ |
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block_mark_chunk_bit_offset = block_mark_bit_offset - |
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(block_mark_chunk_number * chunk_total_size_in_bits); |
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if (block_mark_chunk_bit_offset > chunk_data_size_in_bits) |
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return 1; |
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/*
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* Now that we know the chunk number in which the block mark appears, |
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* we can subtract all the ECC bits that appear before it. |
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*/ |
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block_mark_bit_offset -= |
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block_mark_chunk_number * chunk_ecc_size_in_bits; |
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return block_mark_bit_offset; |
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} |
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static inline uint32_t mx28_nand_mark_byte_offset(void) |
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{ |
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uint32_t ecc_strength; |
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ecc_strength = mx28_nand_get_ecc_strength(nand_writesize, nand_oobsize); |
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return mx28_nand_get_mark_offset(nand_writesize, ecc_strength) >> 3; |
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} |
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static inline uint32_t mx28_nand_mark_bit_offset(void) |
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{ |
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uint32_t ecc_strength; |
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ecc_strength = mx28_nand_get_ecc_strength(nand_writesize, nand_oobsize); |
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return mx28_nand_get_mark_offset(nand_writesize, ecc_strength) & 0x7; |
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} |
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static uint32_t mx28_nand_block_csum(uint8_t *block, uint32_t size) |
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{ |
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uint32_t csum = 0; |
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int i; |
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for (i = 0; i < size; i++) |
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csum += block[i]; |
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return csum ^ 0xffffffff; |
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} |
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static struct mx28_nand_fcb *mx28_nand_get_fcb(uint32_t size) |
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{ |
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struct mx28_nand_fcb *fcb; |
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uint32_t bcb_size_bytes; |
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uint32_t stride_size_bytes; |
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uint32_t bootstream_size_pages; |
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uint32_t fw1_start_page; |
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uint32_t fw2_start_page; |
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fcb = malloc(nand_writesize); |
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if (!fcb) { |
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printf("MX28 NAND: Unable to allocate FCB\n"); |
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return NULL; |
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} |
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memset(fcb, 0, nand_writesize); |
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fcb->fingerprint = 0x20424346; |
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fcb->version = 0x01000000; |
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/*
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* FIXME: These here are default values as found in kobs-ng. We should |
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* probably retrieve the data from NAND or something. |
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*/ |
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fcb->timing.data_setup = 80; |
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fcb->timing.data_hold = 60; |
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fcb->timing.address_setup = 25; |
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fcb->timing.dsample_time = 6; |
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fcb->page_data_size = nand_writesize; |
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fcb->total_page_size = nand_writesize + nand_oobsize; |
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fcb->sectors_per_block = nand_erasesize / nand_writesize; |
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fcb->num_ecc_blocks_per_page = (nand_writesize / 512) - 1; |
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fcb->ecc_block_0_size = 512; |
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fcb->ecc_block_n_size = 512; |
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fcb->metadata_bytes = 10; |
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if (nand_writesize == 2048) { |
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fcb->ecc_block_n_ecc_type = 4; |
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fcb->ecc_block_0_ecc_type = 4; |
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} else if (nand_writesize == 4096) { |
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if (nand_oobsize == 128) { |
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fcb->ecc_block_n_ecc_type = 4; |
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fcb->ecc_block_0_ecc_type = 4; |
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} else if (nand_oobsize == 218) { |
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fcb->ecc_block_n_ecc_type = 8; |
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fcb->ecc_block_0_ecc_type = 8; |
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} |
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} |
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if (fcb->ecc_block_n_ecc_type == 0) { |
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printf("MX28 NAND: Unsupported NAND geometry\n"); |
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goto err; |
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} |
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fcb->boot_patch = 0; |
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fcb->patch_sectors = 0; |
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fcb->badblock_marker_byte = mx28_nand_mark_byte_offset(); |
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fcb->badblock_marker_start_bit = mx28_nand_mark_bit_offset(); |
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fcb->bb_marker_physical_offset = nand_writesize; |
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stride_size_bytes = STRIDE_PAGES * nand_writesize; |
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bcb_size_bytes = stride_size_bytes * STRIDE_COUNT; |
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bootstream_size_pages = (size + (nand_writesize - 1)) / |
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nand_writesize; |
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fw1_start_page = 2 * bcb_size_bytes / nand_writesize; |
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fw2_start_page = (2 * bcb_size_bytes + MAX_BOOTSTREAM_SIZE) / |
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nand_writesize; |
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fcb->firmware1_starting_sector = fw1_start_page; |
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fcb->firmware2_starting_sector = fw2_start_page; |
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fcb->sectors_in_firmware1 = bootstream_size_pages; |
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fcb->sectors_in_firmware2 = bootstream_size_pages; |
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fcb->dbbt_search_area_start_address = STRIDE_PAGES * STRIDE_COUNT; |
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return fcb; |
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err: |
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free(fcb); |
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return NULL; |
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} |
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static struct mx28_nand_dbbt *mx28_nand_get_dbbt(void) |
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{ |
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struct mx28_nand_dbbt *dbbt; |
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dbbt = malloc(nand_writesize); |
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if (!dbbt) { |
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printf("MX28 NAND: Unable to allocate DBBT\n"); |
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return NULL; |
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} |
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memset(dbbt, 0, nand_writesize); |
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dbbt->fingerprint = 0x54424244; |
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dbbt->version = 0x1; |
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return dbbt; |
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} |
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static inline uint8_t mx28_nand_parity_13_8(const uint8_t b) |
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{ |
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uint32_t parity = 0, tmp; |
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tmp = ((b >> 6) ^ (b >> 5) ^ (b >> 3) ^ (b >> 2)) & 1; |
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parity |= tmp << 0; |
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tmp = ((b >> 7) ^ (b >> 5) ^ (b >> 4) ^ (b >> 2) ^ (b >> 1)) & 1; |
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parity |= tmp << 1; |
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tmp = ((b >> 7) ^ (b >> 6) ^ (b >> 5) ^ (b >> 1) ^ (b >> 0)) & 1; |
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parity |= tmp << 2; |
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tmp = ((b >> 7) ^ (b >> 4) ^ (b >> 3) ^ (b >> 0)) & 1; |
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parity |= tmp << 3; |
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tmp = ((b >> 6) ^ (b >> 4) ^ (b >> 3) ^ |
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(b >> 2) ^ (b >> 1) ^ (b >> 0)) & 1; |
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parity |= tmp << 4; |
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return parity; |
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} |
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static uint8_t *mx28_nand_fcb_block(struct mx28_nand_fcb *fcb) |
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{ |
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uint8_t *block; |
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uint8_t *ecc; |
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int i; |
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block = malloc(nand_writesize + nand_oobsize); |
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if (!block) { |
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printf("MX28 NAND: Unable to allocate FCB block\n"); |
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return NULL; |
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} |
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memset(block, 0, nand_writesize + nand_oobsize); |
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/* Update the FCB checksum */ |
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fcb->checksum = mx28_nand_block_csum(((uint8_t *)fcb) + 4, 508); |
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/* Figure 12-11. in iMX28RM, rev. 1, says FCB is at offset 12 */ |
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memcpy(block + 12, fcb, sizeof(struct mx28_nand_fcb)); |
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/* ECC is at offset 12 + 512 */ |
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ecc = block + 12 + 512; |
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/* Compute the ECC parity */ |
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for (i = 0; i < sizeof(struct mx28_nand_fcb); i++) |
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ecc[i] = mx28_nand_parity_13_8(block[i + 12]); |
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return block; |
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} |
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static int mx28_nand_write_fcb(struct mx28_nand_fcb *fcb, char *buf) |
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{ |
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uint32_t offset; |
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uint8_t *fcbblock; |
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int ret = 0; |
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int i; |
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fcbblock = mx28_nand_fcb_block(fcb); |
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if (!fcbblock) |
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return -1; |
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for (i = 0; i < STRIDE_PAGES * STRIDE_COUNT; i += STRIDE_PAGES) { |
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offset = i * nand_writesize; |
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memcpy(buf + offset, fcbblock, nand_writesize + nand_oobsize); |
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} |
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free(fcbblock); |
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return ret; |
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} |
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static int mx28_nand_write_dbbt(struct mx28_nand_dbbt *dbbt, char *buf) |
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{ |
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uint32_t offset; |
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int i = STRIDE_PAGES * STRIDE_COUNT; |
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for (; i < 2 * STRIDE_PAGES * STRIDE_COUNT; i += STRIDE_PAGES) { |
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offset = i * nand_writesize; |
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memcpy(buf + offset, dbbt, sizeof(struct mx28_nand_dbbt)); |
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} |
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return 0; |
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} |
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static int mx28_nand_write_firmware(struct mx28_nand_fcb *fcb, int infd, |
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char *buf) |
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{ |
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int ret; |
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off_t size; |
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uint32_t offset1, offset2; |
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size = lseek(infd, 0, SEEK_END); |
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lseek(infd, 0, SEEK_SET); |
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offset1 = fcb->firmware1_starting_sector * nand_writesize; |
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offset2 = fcb->firmware2_starting_sector * nand_writesize; |
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ret = read(infd, buf + offset1, size); |
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if (ret != size) |
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return -1; |
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memcpy(buf + offset2, buf + offset1, size); |
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return 0; |
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} |
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void usage(void) |
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{ |
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printf( |
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"Usage: mx28image [ops] <type> <infile> <outfile>\n" |
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"Augment BootStream file with a proper header for i.MX28 boot\n" |
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"\n" |
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" <type> type of image:\n" |
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" \"nand\" for NAND image\n" |
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" \"sd\" for SD image\n" |
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" <infile> input file, the u-boot.sb bootstream\n" |
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" <outfile> output file, the bootable image\n" |
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"\n"); |
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printf( |
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"For NAND boot, these options are accepted:\n" |
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" -w <size> NAND page size\n" |
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" -o <size> NAND OOB size\n" |
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" -e <size> NAND erase size\n" |
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"\n" |
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"For SD boot, these options are accepted:\n" |
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" -p <sector> Sector where the SGTL partition starts\n" |
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); |
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} |
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static int mx28_create_nand_image(int infd, int outfd) |
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{ |
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struct mx28_nand_fcb *fcb; |
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struct mx28_nand_dbbt *dbbt; |
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int ret = -1; |
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char *buf; |
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int size; |
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ssize_t wr_size; |
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size = nand_writesize * 512 + 2 * MAX_BOOTSTREAM_SIZE; |
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buf = malloc(size); |
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if (!buf) { |
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printf("Can not allocate output buffer of %d bytes\n", size); |
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goto err0; |
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} |
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memset(buf, 0, size); |
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fcb = mx28_nand_get_fcb(MAX_BOOTSTREAM_SIZE); |
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if (!fcb) { |
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printf("Unable to compile FCB\n"); |
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goto err1; |
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} |
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dbbt = mx28_nand_get_dbbt(); |
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if (!dbbt) { |
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printf("Unable to compile DBBT\n"); |
||||
goto err2; |
||||
} |
||||
|
||||
ret = mx28_nand_write_fcb(fcb, buf); |
||||
if (ret) { |
||||
printf("Unable to write FCB to buffer\n"); |
||||
goto err3; |
||||
} |
||||
|
||||
ret = mx28_nand_write_dbbt(dbbt, buf); |
||||
if (ret) { |
||||
printf("Unable to write DBBT to buffer\n"); |
||||
goto err3; |
||||
} |
||||
|
||||
ret = mx28_nand_write_firmware(fcb, infd, buf); |
||||
if (ret) { |
||||
printf("Unable to write firmware to buffer\n"); |
||||
goto err3; |
||||
} |
||||
|
||||
wr_size = write(outfd, buf, size); |
||||
if (wr_size != size) { |
||||
ret = -1; |
||||
goto err3; |
||||
} |
||||
|
||||
ret = 0; |
||||
|
||||
err3: |
||||
free(dbbt); |
||||
err2: |
||||
free(fcb); |
||||
err1: |
||||
free(buf); |
||||
err0: |
||||
return ret; |
||||
} |
||||
|
||||
static int mx28_create_sd_image(int infd, int outfd) |
||||
{ |
||||
int ret = -1; |
||||
uint32_t *buf; |
||||
int size; |
||||
off_t fsize; |
||||
ssize_t wr_size; |
||||
struct mx28_sd_config_block *cb; |
||||
|
||||
fsize = lseek(infd, 0, SEEK_END); |
||||
lseek(infd, 0, SEEK_SET); |
||||
size = fsize + 512; |
||||
|
||||
buf = malloc(size); |
||||
if (!buf) { |
||||
printf("Can not allocate output buffer of %d bytes\n", size); |
||||
goto err0; |
||||
} |
||||
|
||||
ret = read(infd, (uint8_t *)buf + 512, fsize); |
||||
if (ret != fsize) { |
||||
ret = -1; |
||||
goto err1; |
||||
} |
||||
|
||||
cb = (struct mx28_sd_config_block *)buf; |
||||
|
||||
cb->signature = 0x00112233; |
||||
cb->primary_boot_tag = 0x1; |
||||
cb->secondary_boot_tag = 0x1; |
||||
cb->num_copies = 1; |
||||
cb->drv_info[0].chip_num = 0x0; |
||||
cb->drv_info[0].drive_type = 0x0; |
||||
cb->drv_info[0].tag = 0x1; |
||||
cb->drv_info[0].first_sector_number = sd_sector + 1; |
||||
cb->drv_info[0].sector_count = (size - 1) / 512; |
||||
|
||||
wr_size = write(outfd, buf, size); |
||||
if (wr_size != size) { |
||||
ret = -1; |
||||
goto err1; |
||||
} |
||||
|
||||
ret = 0; |
||||
|
||||
err1: |
||||
free(buf); |
||||
err0: |
||||
return ret; |
||||
} |
||||
|
||||
int parse_ops(int argc, char **argv) |
||||
{ |
||||
int i; |
||||
int tmp; |
||||
char *end; |
||||
enum param { |
||||
PARAM_WRITE, |
||||
PARAM_OOB, |
||||
PARAM_ERASE, |
||||
PARAM_PART, |
||||
PARAM_SD, |
||||
PARAM_NAND |
||||
}; |
||||
int type; |
||||
|
||||
for (i = 1; i < argc; i++) { |
||||
if (!strncmp(argv[i], "-w", 2)) |
||||
type = PARAM_WRITE; |
||||
else if (!strncmp(argv[i], "-o", 2)) |
||||
type = PARAM_OOB; |
||||
else if (!strncmp(argv[i], "-e", 2)) |
||||
type = PARAM_ERASE; |
||||
else if (!strncmp(argv[i], "-p", 2)) |
||||
type = PARAM_PART; |
||||
else /* SD/MMC */ |
||||
break; |
||||
|
||||
tmp = strtol(argv[++i], &end, 10); |
||||
if (tmp % 2) |
||||
return -1; |
||||
if (tmp <= 0) |
||||
return -1; |
||||
|
||||
if (type == PARAM_WRITE) |
||||
nand_writesize = tmp; |
||||
if (type == PARAM_OOB) |
||||
nand_oobsize = tmp; |
||||
if (type == PARAM_ERASE) |
||||
nand_erasesize = tmp; |
||||
if (type == PARAM_PART) |
||||
sd_sector = tmp; |
||||
} |
||||
|
||||
if (strcmp(argv[i], "sd") && strcmp(argv[i], "nand")) |
||||
return -1; |
||||
|
||||
if (i + 3 != argc) |
||||
return -1; |
||||
|
||||
return i; |
||||
} |
||||
|
||||
int main(int argc, char **argv) |
||||
{ |
||||
int infd, outfd; |
||||
int ret = 0; |
||||
int offset; |
||||
|
||||
offset = parse_ops(argc, argv); |
||||
if (offset < 0) { |
||||
usage(); |
||||
ret = 1; |
||||
goto err1; |
||||
} |
||||
|
||||
infd = open(argv[offset + 1], O_RDONLY); |
||||
if (infd < 0) { |
||||
printf("Input BootStream file can not be opened\n"); |
||||
ret = 2; |
||||
goto err1; |
||||
} |
||||
|
||||
outfd = open(argv[offset + 2], O_CREAT | O_TRUNC | O_WRONLY, |
||||
S_IRUSR | S_IWUSR); |
||||
if (outfd < 0) { |
||||
printf("Output file can not be created\n"); |
||||
ret = 3; |
||||
goto err2; |
||||
} |
||||
|
||||
if (!strcmp(argv[offset], "sd")) |
||||
ret = mx28_create_sd_image(infd, outfd); |
||||
else if (!strcmp(argv[offset], "nand")) |
||||
ret = mx28_create_nand_image(infd, outfd); |
||||
|
||||
close(outfd); |
||||
err2: |
||||
close(infd); |
||||
err1: |
||||
return ret; |
||||
} |
Loading…
Reference in new issue