projects / J-u-boot.git / blame
| Commit | Line | Data |
|---|---|---|
| 83d290c5 | 1 | // SPDX-License-Identifier: GPL-2.0+ |
| 5c390a5b | 2 | /* |
| 09c2b8f3 | 3 | * (C) Copyright 2014 Andreas Bießmann <[email protected]> |
| 5c390a5b AB |
4 | */ |
| 5 | ||
| 6 | /* | |
| 7 | * This is a host tool for generating an appropriate string out of board | |
| 8 | * configuration. The string is required for correct generation of PMECC | |
| 9 | * header which in turn is required for NAND flash booting of Atmel AT91 style | |
| 10 | * hardware. | |
| 11 | * | |
| 12 | * See doc/README.atmel_pmecc for more information. | |
| 13 | */ | |
| 14 | ||
| 15 | #include <config.h> | |
| 16 | #include <stdlib.h> | |
| 17 | ||
| 18 | static int pmecc_get_ecc_bytes(int cap, int sector_size) | |
| 19 | { | |
| 20 | int m = 12 + sector_size / 512; | |
| 21 | return (m * cap + 7) / 8; | |
| 22 | } | |
| 23 | ||
| 24 | int main(int argc, char *argv[]) | |
| 25 | { | |
| 26 | unsigned int use_pmecc = 0; | |
| 27 | unsigned int sector_per_page; | |
| 28 | unsigned int sector_size = CONFIG_PMECC_SECTOR_SIZE; | |
| 29 | unsigned int oob_size = CONFIG_SYS_NAND_OOBSIZE; | |
| 30 | unsigned int ecc_bits = CONFIG_PMECC_CAP; | |
| 31 | unsigned int ecc_offset; | |
| 32 | ||
| 33 | #ifdef CONFIG_ATMEL_NAND_HW_PMECC | |
| 34 | use_pmecc = 1; | |
| 35 | #endif | |
| 36 | ||
| 37 | sector_per_page = CONFIG_SYS_NAND_PAGE_SIZE / CONFIG_PMECC_SECTOR_SIZE; | |
| 38 | ecc_offset = oob_size - | |
| 39 | pmecc_get_ecc_bytes(ecc_bits, sector_size) * sector_per_page; | |
| 40 | ||
| 41 | printf("usePmecc=%d,", use_pmecc); | |
| 42 | printf("sectorPerPage=%d,", sector_per_page); | |
| 43 | printf("sectorSize=%d,", sector_size); | |
| 44 | printf("spareSize=%d,", oob_size); | |
| 45 | printf("eccBits=%d,", ecc_bits); | |
| 46 | printf("eccOffset=%d", ecc_offset); | |
| 47 | printf("\n"); | |
| 48 | ||
| 49 | exit(EXIT_SUCCESS); | |
| 50 | } |