diff options
Diffstat (limited to 'util/flashrom/sst28sf040.c')
| -rw-r--r-- | util/flashrom/sst28sf040.c | 160 |
1 files changed, 0 insertions, 160 deletions
diff --git a/util/flashrom/sst28sf040.c b/util/flashrom/sst28sf040.c deleted file mode 100644 index 282b369bdb..0000000000 --- a/util/flashrom/sst28sf040.c +++ /dev/null @@ -1,160 +0,0 @@ -/* - * This file is part of the flashrom project. - * - * Copyright (C) 2000 Silicon Integrated System Corporation - * Copyright (C) 2005 coresystems GmbH <stepan@openbios.org> - * - * 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 - */ - -#include <stdio.h> -#include <stdint.h> -#include "flash.h" - -#define AUTO_PG_ERASE1 0x20 -#define AUTO_PG_ERASE2 0xD0 -#define AUTO_PGRM 0x10 -#define CHIP_ERASE 0x30 -#define RESET 0xFF -#define READ_ID 0x90 - -static __inline__ void protect_28sf040(volatile uint8_t *bios) -{ - uint8_t tmp; - - tmp = chip_readb(bios + 0x1823); - tmp = chip_readb(bios + 0x1820); - tmp = chip_readb(bios + 0x1822); - tmp = chip_readb(bios + 0x0418); - tmp = chip_readb(bios + 0x041B); - tmp = chip_readb(bios + 0x0419); - tmp = chip_readb(bios + 0x040A); -} - -static __inline__ void unprotect_28sf040(volatile uint8_t *bios) -{ - uint8_t tmp; - - tmp = chip_readb(bios + 0x1823); - tmp = chip_readb(bios + 0x1820); - tmp = chip_readb(bios + 0x1822); - tmp = chip_readb(bios + 0x0418); - tmp = chip_readb(bios + 0x041B); - tmp = chip_readb(bios + 0x0419); - tmp = chip_readb(bios + 0x041A); -} - -static __inline__ int erase_sector_28sf040(volatile uint8_t *bios, - unsigned long address) -{ - chip_writeb(AUTO_PG_ERASE1, bios); - chip_writeb(AUTO_PG_ERASE2, bios + address); - - /* wait for Toggle bit ready */ - toggle_ready_jedec(bios); - - return 0; -} - -static __inline__ int write_sector_28sf040(volatile uint8_t *bios, - uint8_t *src, - volatile uint8_t *dst, - unsigned int page_size) -{ - int i; - - for (i = 0; i < page_size; i++) { - /* transfer data from source to destination */ - if (*src == 0xFF) { - dst++, src++; - /* If the data is 0xFF, don't program it */ - continue; - } - /*issue AUTO PROGRAM command */ - chip_writeb(AUTO_PGRM, dst); - chip_writeb(*src++, dst++); - - /* wait for Toggle bit ready */ - toggle_ready_jedec(bios); - } - - return 0; -} - -int probe_28sf040(struct flashchip *flash) -{ - volatile uint8_t *bios = flash->virtual_memory; - uint8_t id1, id2; - - chip_writeb(RESET, bios); - myusec_delay(10); - - chip_writeb(READ_ID, bios); - myusec_delay(10); - id1 = chip_readb(bios); - myusec_delay(10); - id2 = chip_readb(bios + 0x01); - - chip_writeb(RESET, bios); - myusec_delay(10); - - printf_debug("%s: id1 0x%02x, id2 0x%02x\n", __FUNCTION__, id1, id2); - if (id1 == flash->manufacture_id && id2 == flash->model_id) - return 1; - - return 0; -} - -int erase_28sf040(struct flashchip *flash) -{ - volatile uint8_t *bios = flash->virtual_memory; - - unprotect_28sf040(bios); - chip_writeb(CHIP_ERASE, bios); - chip_writeb(CHIP_ERASE, bios); - protect_28sf040(bios); - - myusec_delay(10); - toggle_ready_jedec(bios); - - return 0; -} - -int write_28sf040(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; - - unprotect_28sf040(bios); - - printf("Programming page: "); - for (i = 0; i < total_size / page_size; i++) { - /* erase the page before programming */ - erase_sector_28sf040(bios, i * page_size); - - /* write to the sector */ - printf("%04d at address: 0x%08x", i, i * page_size); - write_sector_28sf040(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"); - - protect_28sf040(bios); - - return 0; -} |