diff options
Diffstat (limited to 'util/flashrom/m29f400bt.c')
-rw-r--r-- | util/flashrom/m29f400bt.c | 217 |
1 files changed, 0 insertions, 217 deletions
diff --git a/util/flashrom/m29f400bt.c b/util/flashrom/m29f400bt.c deleted file mode 100644 index cb55d76ef0..0000000000 --- a/util/flashrom/m29f400bt.c +++ /dev/null @@ -1,217 +0,0 @@ -/* - * 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 - */ - -#include "flash.h" - -void protect_m29f400bt(volatile uint8_t *bios) -{ - chip_writeb(0xAA, bios + 0xAAA); - chip_writeb(0x55, bios + 0x555); - chip_writeb(0xA0, bios + 0xAAA); - - usleep(200); -} - -void write_page_m29f400bt(volatile uint8_t *bios, uint8_t *src, - volatile uint8_t *dst, int page_size) -{ - int i; - - for (i = 0; i < page_size; i++) { - chip_writeb(0xAA, bios + 0xAAA); - chip_writeb(0x55, bios + 0x555); - chip_writeb(0xA0, bios + 0xAAA); - - /* transfer data from source to destination */ - chip_writeb(*src, dst); - //*(volatile char *) (bios) = 0xF0; - //usleep(5); - toggle_ready_jedec(dst); - printf - ("Value in the flash at address %p = %#x, want %#x\n", - (uint8_t *) (dst - bios), chip_readb(dst), *src); - dst++; - src++; - } -} - -int probe_m29f400bt(struct flashchip *flash) -{ - volatile uint8_t *bios = flash->virtual_memory; - uint8_t id1, id2; - - chip_writeb(0xAA, bios + 0xAAA); - chip_writeb(0x55, bios + 0x555); - chip_writeb(0x90, bios + 0xAAA); - - myusec_delay(10); - - id1 = chip_readb(bios); - /* The data sheet says id2 is at (bios + 0x01) and id2 listed in - * flash.h does not match. It should be possible to use JEDEC probe. - */ - id2 = chip_readb(bios + 0x02); - - chip_writeb(0xAA, bios + 0xAAA); - chip_writeb(0x55, bios + 0x555); - chip_writeb(0xF0, bios + 0xAAA); - - 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_m29f400bt(struct flashchip *flash) -{ - volatile uint8_t *bios = flash->virtual_memory; - - chip_writeb(0xAA, bios + 0xAAA); - chip_writeb(0x55, bios + 0x555); - chip_writeb(0x80, bios + 0xAAA); - - chip_writeb(0xAA, bios + 0xAAA); - chip_writeb(0x55, bios + 0x555); - chip_writeb(0x10, bios + 0xAAA); - - myusec_delay(10); - toggle_ready_jedec(bios); - - return 0; -} - -int block_erase_m29f400bt(volatile uint8_t *bios, volatile uint8_t *dst) -{ - - chip_writeb(0xAA, bios + 0xAAA); - chip_writeb(0x55, bios + 0x555); - chip_writeb(0x80, bios + 0xAAA); - - chip_writeb(0xAA, bios + 0xAAA); - chip_writeb(0x55, bios + 0x555); - //*(volatile uint8_t *) (bios + 0xAAA) = 0x10; - chip_writeb(0x30, dst); - - myusec_delay(10); - toggle_ready_jedec(bios); - - return 0; -} - -int write_m29f400bt(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; - - //erase_m29f400bt (flash); - printf("Programming page:\n "); - /********************************* - *Pages for M29F400BT: - * 16 0x7c000 0x7ffff TOP - * 8 0x7a000 0x7bfff - * 8 0x78000 0x79fff - * 32 0x70000 0x77fff - * 64 0x60000 0x6ffff - * 64 0x50000 0x5ffff - * 64 0x40000 0x4ffff - *--------------------------------- - * 64 0x30000 0x3ffff - * 64 0x20000 0x2ffff - * 64 0x10000 0x1ffff - * 64 0x00000 0x0ffff BOTTOM - *********************************/ - printf("total_size/page_size = %d\n", total_size / page_size); - for (i = 0; i < (total_size / page_size) - 1; i++) { - printf("%04d at address: 0x%08x\n", i, i * page_size); - block_erase_m29f400bt(bios, bios + i * page_size); - write_page_m29f400bt(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("%04d at address: 0x%08x\n", 7, 0x70000); - block_erase_m29f400bt(bios, bios + 0x70000); - write_page_m29f400bt(bios, buf + 0x70000, bios + 0x70000, 32 * 1024); - - printf("%04d at address: 0x%08x\n", 8, 0x78000); - block_erase_m29f400bt(bios, bios + 0x78000); - write_page_m29f400bt(bios, buf + 0x78000, bios + 0x78000, 8 * 1024); - - printf("%04d at address: 0x%08x\n", 9, 0x7a000); - block_erase_m29f400bt(bios, bios + 0x7a000); - write_page_m29f400bt(bios, buf + 0x7a000, bios + 0x7a000, 8 * 1024); - - printf("%04d at address: 0x%08x\n", 10, 0x7c000); - block_erase_m29f400bt(bios, bios + 0x7c000); - write_page_m29f400bt(bios, buf + 0x7c000, bios + 0x7c000, 16 * 1024); - - printf("\n"); - //protect_m29f400bt (bios); - - return 0; -} - -int write_coreboot_m29f400bt(struct flashchip *flash, uint8_t *buf) -{ - volatile uint8_t *bios = flash->virtual_memory; - - printf("Programming page:\n "); - /********************************* - *Pages for M29F400BT: - * 16 0x7c000 0x7ffff TOP - * 8 0x7a000 0x7bfff - * 8 0x78000 0x79fff - * 32 0x70000 0x77fff - * 64 0x60000 0x6ffff - * 64 0x50000 0x5ffff - * 64 0x40000 0x4ffff - *--------------------------------- - * 64 0x30000 0x3ffff - * 64 0x20000 0x2ffff - * 64 0x10000 0x1ffff - * 64 0x00000 0x0ffff BOTTOM - *********************************/ - printf("%04d at address: 0x%08x\n", 7, 0x00000); - block_erase_m29f400bt(bios, bios + 0x00000); - write_page_m29f400bt(bios, buf + 0x00000, bios + 0x00000, 64 * 1024); - - printf("%04d at address: 0x%08x\n", 7, 0x10000); - block_erase_m29f400bt(bios, bios + 0x10000); - write_page_m29f400bt(bios, buf + 0x10000, bios + 0x10000, 64 * 1024); - - printf("%04d at address: 0x%08x\n", 7, 0x20000); - block_erase_m29f400bt(bios, bios + 0x20000); - write_page_m29f400bt(bios, buf + 0x20000, bios + 0x20000, 64 * 1024); - - printf("%04d at address: 0x%08x\n", 7, 0x30000); - block_erase_m29f400bt(bios, bios + 0x30000); - write_page_m29f400bt(bios, buf + 0x30000, bios + 0x30000, 64 * 1024); - - printf("\n"); - //protect_m29f400bt (bios); - - return 0; -} |