/* * This file is part of the flashrom project. * * Copyright (C) 2000 Silicon Integrated System Corporation * * 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., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA */ /* Adapted from the Intel FW hub stuff for 82802ax parts. */ #include <stdio.h> #include "flash.h" // I need that Berkeley bit-map printer void print_sst_fwhub_status(uint8_t status) { printf("%s", status & 0x80 ? "Ready:" : "Busy:"); printf("%s", status & 0x40 ? "BE SUSPEND:" : "BE RUN/FINISH:"); printf("%s", status & 0x20 ? "BE ERROR:" : "BE OK:"); printf("%s", status & 0x10 ? "PROG ERR:" : "PROG OK:"); printf("%s", status & 0x8 ? "VP ERR:" : "VPP OK:"); printf("%s", status & 0x4 ? "PROG SUSPEND:" : "PROG RUN/FINISH:"); printf("%s", status & 0x2 ? "WP|TBL#|WP#,ABORT:" : "UNLOCK:"); } /* probe_jedec works fine for probing */ int probe_sst_fwhub(struct flashchip *flash) { if (probe_jedec(flash) == 0) return 0; map_flash_registers(flash); return 1; } int erase_sst_fwhub_block(struct flashchip *flash, int offset) { volatile uint8_t *wrprotect = flash->virtual_registers + offset + 2; // clear write protect *(wrprotect) = 0; erase_block_jedec(flash->virtual_memory, offset); toggle_ready_jedec(flash->virtual_memory); return 0; } int erase_sst_fwhub(struct flashchip *flash) { int i; unsigned int total_size = flash->total_size * 1024; volatile uint8_t *bios = flash->virtual_memory; for (i = 0; i < total_size; i += flash->page_size) erase_sst_fwhub_block(flash, i); // dumb check if erase was successful. for (i = 0; i < total_size; i++) { if (bios[i] != 0xff) { printf("ERASE FAILED!\n"); return -1; } } return 0; } int write_sst_fwhub(struct flashchip *flash, uint8_t *buf) { int i; int total_size = flash->total_size * 1024; int page_size = flash->page_size; volatile uint8_t *bios = flash->virtual_memory; // FIXME: We want block wide erase instead of ironing the whole chip if (erase_sst_fwhub(flash)) return -1; printf("Programming page: "); for (i = 0; i < total_size / page_size; i++) { printf("%04d at address: 0x%08x", i, i * page_size); write_sector_jedec(bios, buf + i * page_size, bios + i * page_size, page_size); printf("\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b"); } printf("\n"); return 0; }