FreeCalypso > hg > freecalypso-tools
view loadtools/flutil.c @ 716:3713a349fb1e
doc/Loadtools-usage: Mot V17x documented
Mot V17x is equivalent to C155/156 for loadtools purposes, but this fact
needs to be documented, as it may not be obvious to those who are not
as deeply involved.
author | Mychaela Falconia <falcon@freecalypso.org> |
---|---|
date | Wed, 01 Jul 2020 00:31:37 +0000 |
parents | 135de08c5d74 |
children |
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/* * Miscellaneous utility functions for flash support */ #include <sys/types.h> #include <stdio.h> #include <stdint.h> #include <stdlib.h> #include "flash.h" extern struct flash_bank_info flash_bank_info[2]; get_flash_sector_table(bi) struct flash_bank_info *bi; { struct flash_geom *geom; struct flash_region_desc *reg; struct sector_info *sp; uint32_t offset; int nr, i; if (bi->sectors) return(0); geom = bi->geom; sp = (struct sector_info *) malloc(sizeof(struct sector_info) * (geom->total_sectors + 1)); if (!sp) { fprintf(stderr, "unable to malloc buffer for flash sector table\n"); return(-1); } bi->sectors = sp; /* now fill it */ offset = 0; for (nr = 0; nr < geom->nregions; nr++) { reg = geom->regions + nr; for (i = 0; i < reg->nsectors; i++) { sp->start = offset; sp->size = reg->sector_size; sp++; offset += reg->sector_size; } } /* sanity checks */ if (sp - bi->sectors != geom->total_sectors) { fprintf(stderr, "BUG in get_flash_sector_table(): wrong # of sectors at the end\n"); abort(); } if (offset != geom->total_size) { fprintf(stderr, "BUG in get_flash_sector_table(): wrong offset at the end\n"); abort(); } /* finish */ sp->start = 0; sp->size = 0; return(0); } flashcmd_sectors(argc, argv, bank) char **argv; { struct flash_bank_info *bi; struct sector_info *sp; if (argc > 2) { fprintf(stderr, "error: too many arguments\n"); return(-1); } if (flash_detect(bank, 0) < 0) return(-1); bi = flash_bank_info + bank; if (get_flash_sector_table(bi) < 0) return(-1); printf("%u sectors in flash bank %d:\n", bi->geom->total_sectors, bank); printf("Offset Size\n"); for (sp = bi->sectors; sp->size; sp++) printf("%08lX %lx\n", (u_long) sp->start, (u_long) sp->size); return(0); } get_flash_sector_range(bi, useroff, userlen, startp, endp) struct flash_bank_info *bi; u_long useroff, userlen; struct sector_info **startp, **endp; { struct sector_info *sp; uint32_t remlen; for (sp = bi->sectors; sp->size; sp++) if (sp->start == useroff) break; if (!sp->size) { fprintf(stderr, "error: specified offset not aligned to a flash sector boundary\n"); return(-1); } *startp = sp; for (remlen = userlen; remlen; ) { if (remlen < sp->size) { fprintf(stderr, "error: specified length not aligned to a flash sector boundary\n"); return(-1); } remlen -= sp->size; sp++; } *endp = sp; return(0); }