X-Git-Url: https://git.kernelconcepts.de/?p=karo-tx-uboot.git;a=blobdiff_plain;f=tools%2Fmxsboot.c;h=185b327920189926a6ecb4ce054b525554f9dafb;hp=d92c39fec667448e0963c14dccbd72e8e5b572ce;hb=cc376eb796682ab4a34e4ca76e2e0109277c6b15;hpb=cac423a730d3506154744485af1bbc1cd3a1e6a8 diff --git a/tools/mxsboot.c b/tools/mxsboot.c index d92c39fec6..185b327920 100644 --- a/tools/mxsboot.c +++ b/tools/mxsboot.c @@ -4,23 +4,7 @@ * Copyright (C) 2011 Marek Vasut * on behalf of DENX Software Engineering GmbH * - * See file CREDITS for list of people who contributed to this - * project. - * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public License as - * published by the Free Software Foundation; either version 2 of - * the License, or (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 59 Temple Place, Suite 330, Boston, - * MA 02111-1307 USA + * SPDX-License-Identifier: GPL-2.0+ */ #include @@ -30,6 +14,10 @@ #include "compiler.h" +/* Taken from */ +#define __round_mask(x, y) ((__typeof__(x))((y)-1)) +#define round_down(x, y) ((x) & ~__round_mask(x, y)) + /* * Default BCB layout. * @@ -44,14 +32,14 @@ * * TWEAK this if you have different kind of NAND chip. */ -uint32_t nand_writesize = 2048; -uint32_t nand_oobsize = 64; -uint32_t nand_erasesize = 128 * 1024; +static uint32_t nand_writesize = 2048; +static uint32_t nand_oobsize = 64; +static uint32_t nand_erasesize = 128 * 1024; /* * Sector on which the SigmaTel boot partition (0x53) starts. */ -uint32_t sd_sector = 2048; +static uint32_t sd_sector = 2048; /* * Each of the U-Boot bootstreams is at maximum 1MB big. @@ -64,6 +52,7 @@ uint32_t sd_sector = 2048; #define MXS_NAND_DMA_DESCRIPTOR_COUNT 4 #define MXS_NAND_CHUNK_DATA_CHUNK_SIZE 512 #define MXS_NAND_METADATA_SIZE 10 +#define MXS_NAND_BITS_PER_ECC_LEVEL 13 #define MXS_NAND_COMMAND_BUFFER_SIZE 32 struct mx28_nand_fcb { @@ -141,26 +130,34 @@ struct mx28_sd_config_block { struct mx28_sd_drive_info drv_info[1]; }; +static inline uint32_t mx28_nand_ecc_chunk_cnt(uint32_t page_data_size) +{ + return page_data_size / MXS_NAND_CHUNK_DATA_CHUNK_SIZE; +} + static inline uint32_t mx28_nand_ecc_size_in_bits(uint32_t ecc_strength) { - return ecc_strength * 13; + return ecc_strength * MXS_NAND_BITS_PER_ECC_LEVEL; } static inline uint32_t mx28_nand_get_ecc_strength(uint32_t page_data_size, uint32_t page_oob_size) { - if (page_data_size == 2048) - return 8; + int ecc_strength; - if (page_data_size == 4096) { - if (page_oob_size == 128) - return 8; - - if (page_oob_size == 218) - return 16; - } + /* + * Determine the ECC layout with the formula: + * ECC bits per chunk = (total page spare data bits) / + * (bits per ECC level) / (chunks per page) + * where: + * total page spare data bits = + * (page oob size - meta data size) * (bits per byte) + */ + ecc_strength = ((page_oob_size - MXS_NAND_METADATA_SIZE) * 8) + / (MXS_NAND_BITS_PER_ECC_LEVEL * + mx28_nand_ecc_chunk_cnt(page_data_size)); - return 0; + return round_down(ecc_strength, 2); } static inline uint32_t mx28_nand_get_mark_offset(uint32_t page_data_size, @@ -285,6 +282,9 @@ static struct mx28_nand_fcb *mx28_nand_get_fcb(uint32_t size) } else if (nand_oobsize == 218) { fcb->ecc_block_n_ecc_type = 8; fcb->ecc_block_0_ecc_type = 8; + } else if (nand_oobsize == 224) { + fcb->ecc_block_n_ecc_type = 8; + fcb->ecc_block_0_ecc_type = 8; } } @@ -395,7 +395,7 @@ static uint8_t *mx28_nand_fcb_block(struct mx28_nand_fcb *fcb) return block; } -static int mx28_nand_write_fcb(struct mx28_nand_fcb *fcb, char *buf) +static int mx28_nand_write_fcb(struct mx28_nand_fcb *fcb, uint8_t *buf) { uint32_t offset; uint8_t *fcbblock; @@ -409,13 +409,15 @@ static int mx28_nand_write_fcb(struct mx28_nand_fcb *fcb, char *buf) for (i = 0; i < STRIDE_PAGES * STRIDE_COUNT; i += STRIDE_PAGES) { offset = i * nand_writesize; memcpy(buf + offset, fcbblock, nand_writesize + nand_oobsize); + /* Mark the NAND page is OK. */ + buf[offset + nand_writesize] = 0xff; } free(fcbblock); return ret; } -static int mx28_nand_write_dbbt(struct mx28_nand_dbbt *dbbt, char *buf) +static int mx28_nand_write_dbbt(struct mx28_nand_dbbt *dbbt, uint8_t *buf) { uint32_t offset; int i = STRIDE_PAGES * STRIDE_COUNT; @@ -429,7 +431,7 @@ static int mx28_nand_write_dbbt(struct mx28_nand_dbbt *dbbt, char *buf) } static int mx28_nand_write_firmware(struct mx28_nand_fcb *fcb, int infd, - char *buf) + uint8_t *buf) { int ret; off_t size; @@ -450,7 +452,7 @@ static int mx28_nand_write_firmware(struct mx28_nand_fcb *fcb, int infd, return 0; } -void usage(void) +static void usage(void) { printf( "Usage: mxsboot [ops] \n" @@ -478,7 +480,7 @@ static int mx28_create_nand_image(int infd, int outfd) struct mx28_nand_fcb *fcb; struct mx28_nand_dbbt *dbbt; int ret = -1; - char *buf; + uint8_t *buf; int size; ssize_t wr_size; @@ -591,7 +593,7 @@ err0: return ret; } -int parse_ops(int argc, char **argv) +static int parse_ops(int argc, char **argv) { int i; int tmp;