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![Alexandre Coffignal](/assets/img/avatar_default.png)
Add support for the NAND Flash chip with page size of 4096+224-bytes OOB area length For example Micron MT29F4G08 NAND flash device defines a OOB area which is 224 bytes long (oobsize). Signed-off-by: Alexandre Coffignal <acoffignal@geral.com>
680 lines
15 KiB
C
680 lines
15 KiB
C
/*
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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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* SPDX-License-Identifier: GPL-2.0+
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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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static uint32_t nand_writesize = 2048;
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static uint32_t nand_oobsize = 64;
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static 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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static 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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if (page_oob_size == 224)
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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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} else if (nand_oobsize == 224) {
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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, uint8_t *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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/* Mark the NAND page is OK. */
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buf[offset + nand_writesize] = 0xff;
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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, uint8_t *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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uint8_t *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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static void usage(void)
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{
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printf(
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"Usage: mxsboot [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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uint8_t *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);
|
|
goto err0;
|
|
}
|
|
|
|
memset(buf, 0, size);
|
|
|
|
fcb = mx28_nand_get_fcb(MAX_BOOTSTREAM_SIZE);
|
|
if (!fcb) {
|
|
printf("Unable to compile FCB\n");
|
|
goto err1;
|
|
}
|
|
|
|
dbbt = mx28_nand_get_dbbt();
|
|
if (!dbbt) {
|
|
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 + 4 * 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 + 4 * 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 + 4;
|
|
cb->drv_info[0].sector_count = (size - 4) / 512;
|
|
|
|
wr_size = write(outfd, buf, size);
|
|
if (wr_size != size) {
|
|
ret = -1;
|
|
goto err1;
|
|
}
|
|
|
|
ret = 0;
|
|
|
|
err1:
|
|
free(buf);
|
|
err0:
|
|
return ret;
|
|
}
|
|
|
|
static 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;
|
|
|
|
if (argc < 4)
|
|
return -1;
|
|
|
|
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;
|
|
}
|