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Diffstat (limited to 'stm50flw0x0x.c')
| -rw-r--r-- | stm50flw0x0x.c | 115 |
1 files changed, 0 insertions, 115 deletions
diff --git a/stm50flw0x0x.c b/stm50flw0x0x.c deleted file mode 100644 index e6c7c05..0000000 --- a/stm50flw0x0x.c +++ /dev/null @@ -1,115 +0,0 @@ -/* - * This file is part of the flashrom project. - * - * Copyright (C) 2008 Claus Gindhart <claus.gindhart@kontron.com> - * Copyright (C) 2009 Sean Nelson <audiohacked@gmail.com> - * - * 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 - */ - -/* - * This module is designed for supporting the devices - * ST M50FLW040A (not yet tested) - * ST M50FLW040B (not yet tested) - * ST M50FLW080A - * ST M50FLW080B (not yet tested) - */ - -#include "flash.h" -#include "flashchips.h" -#include "chipdrivers.h" - -/* - * claus.gindhart@kontron.com - * The ST M50FLW080B and STM50FLW080B chips have to be unlocked, - * before you can erase them or write to them. - */ -static int unlock_block_stm50flw0x0x(struct flashctx *flash, int offset) -{ - chipaddr wrprotect = flash->virtual_registers + 2; - static const uint8_t unlock_sector = 0x00; - int j; - - /* - * These chips have to be unlocked before you can erase them or write - * to them. The size of the locking sectors depends on the type - * of chip. - * - * Sometimes, the BIOS does this for you; so you probably - * don't need to worry about that. - */ - - /* Check, if it's is a top/bottom-block with 4k-sectors. */ - /* TODO: What about the other types? */ - if ((offset == 0) || - (offset == (flash->chip->model_id == ST_M50FLW080A ? 0xE0000 : 0x10000)) - || (offset == 0xF0000)) { - - // unlock each 4k-sector - for (j = 0; j < 0x10000; j += 0x1000) { - msg_cdbg("unlocking at 0x%x\n", offset + j); - chip_writeb(flash, unlock_sector, - wrprotect + offset + j); - if (chip_readb(flash, wrprotect + offset + j) != - unlock_sector) { - msg_cerr("Cannot unlock sector @ 0x%x\n", - offset + j); - return -1; - } - } - } else { - msg_cdbg("unlocking at 0x%x\n", offset); - chip_writeb(flash, unlock_sector, wrprotect + offset); - if (chip_readb(flash, wrprotect + offset) != unlock_sector) { - msg_cerr("Cannot unlock sector @ 0x%x\n", offset); - return -1; - } - } - - return 0; -} - -int unlock_stm50flw0x0x(struct flashctx *flash) -{ - int i; - - for (i = 0; i < flash->chip->total_size * 1024; i+= flash->chip->page_size) { - if(unlock_block_stm50flw0x0x(flash, i)) { - msg_cerr("UNLOCK FAILED!\n"); - return -1; - } - } - - return 0; -} - -/* This function is unused. */ -int erase_sector_stm50flw0x0x(struct flashctx *flash, unsigned int sector, - unsigned int sectorsize) -{ - chipaddr bios = flash->virtual_memory + sector; - - // clear status register - chip_writeb(flash, 0x50, bios); - // now start it - chip_writeb(flash, 0x32, bios); - chip_writeb(flash, 0xd0, bios); - programmer_delay(10); - - wait_82802ab(flash); - - /* FIXME: Check the status register for errors. */ - return 0; -} |
