mirror of
https://review.coreboot.org/flashrom.git
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d110764ccd
No changes in content of the files. Corresponding to flashrom svn r131 and coreboot v2 svn r2751. Signed-off-by: Uwe Hermann <uwe@hermann-uwe.de> Acked-by: Uwe Hermann <uwe@hermann-uwe.de>
215 lines
6.1 KiB
C
215 lines
6.1 KiB
C
/*
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* This file is part of the flashrom project.
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*
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* Copyright 2000 Silicon Integrated System Corporation
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
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*/
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#include "flash.h"
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void protect_m29f400bt(volatile uint8_t *bios)
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{
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*(volatile uint8_t *)(bios + 0xAAA) = 0xAA;
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*(volatile uint8_t *)(bios + 0x555) = 0x55;
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*(volatile uint8_t *)(bios + 0xAAA) = 0xA0;
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usleep(200);
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}
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void write_page_m29f400bt(volatile uint8_t *bios, uint8_t *src,
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volatile uint8_t *dst, int page_size)
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{
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int i;
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for (i = 0; i < page_size; i++) {
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*(volatile uint8_t *)(bios + 0xAAA) = 0xAA;
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*(volatile uint8_t *)(bios + 0x555) = 0x55;
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*(volatile uint8_t *)(bios + 0xAAA) = 0xA0;
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/* transfer data from source to destination */
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*dst = *src;
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//*(volatile char *) (bios) = 0xF0;
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//usleep(5);
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toggle_ready_jedec(dst);
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printf
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("Value in the flash at address %p = %#x, want %#x\n",
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(uint8_t *) (dst - bios), *dst, *src);
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dst++;
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src++;
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}
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}
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int probe_m29f400bt(struct flashchip *flash)
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{
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volatile uint8_t *bios = flash->virtual_memory;
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uint8_t id1, id2;
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*(volatile uint8_t *)(bios + 0xAAA) = 0xAA;
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*(volatile uint8_t *)(bios + 0x555) = 0x55;
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*(volatile uint8_t *)(bios + 0xAAA) = 0x90;
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myusec_delay(10);
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id1 = *(volatile uint8_t *)bios;
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id2 = *(volatile uint8_t *)(bios + 0x02);
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*(volatile uint8_t *)(bios + 0xAAA) = 0xAA;
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*(volatile uint8_t *)(bios + 0x555) = 0x55;
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*(volatile uint8_t *)(bios + 0xAAA) = 0xF0;
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myusec_delay(10);
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printf_debug("%s: id1 0x%x, id2 0x%x\n", __FUNCTION__, id1, id2);
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if (id1 == flash->manufacture_id && id2 == flash->model_id)
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return 1;
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return 0;
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}
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int erase_m29f400bt(struct flashchip *flash)
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{
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volatile uint8_t *bios = flash->virtual_memory;
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*(volatile uint8_t *)(bios + 0xAAA) = 0xAA;
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*(volatile uint8_t *)(bios + 0x555) = 0x55;
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*(volatile uint8_t *)(bios + 0xAAA) = 0x80;
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*(volatile uint8_t *)(bios + 0xAAA) = 0xAA;
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*(volatile uint8_t *)(bios + 0x555) = 0x55;
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*(volatile uint8_t *)(bios + 0xAAA) = 0x10;
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myusec_delay(10);
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toggle_ready_jedec(bios);
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return 0;
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}
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int block_erase_m29f400bt(volatile uint8_t *bios, volatile uint8_t *dst)
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{
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*(volatile uint8_t *)(bios + 0xAAA) = 0xAA;
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*(volatile uint8_t *)(bios + 0x555) = 0x55;
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*(volatile uint8_t *)(bios + 0xAAA) = 0x80;
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*(volatile uint8_t *)(bios + 0xAAA) = 0xAA;
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*(volatile uint8_t *)(bios + 0x555) = 0x55;
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//*(volatile uint8_t *) (bios + 0xAAA) = 0x10;
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*dst = 0x30;
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myusec_delay(10);
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toggle_ready_jedec(bios);
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return 0;
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}
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int write_m29f400bt(struct flashchip *flash, uint8_t *buf)
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{
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int i;
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int total_size = flash->total_size * 1024;
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int page_size = flash->page_size;
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volatile uint8_t *bios = flash->virtual_memory;
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//erase_m29f400bt (flash);
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printf("Programming Page:\n ");
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/*********************************
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*Pages for M29F400BT:
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* 16 0x7c000 0x7ffff TOP
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* 8 0x7a000 0x7bfff
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* 8 0x78000 0x79fff
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* 32 0x70000 0x77fff
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* 64 0x60000 0x6ffff
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* 64 0x50000 0x5ffff
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* 64 0x40000 0x4ffff
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*---------------------------------
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* 64 0x30000 0x3ffff
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* 64 0x20000 0x2ffff
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* 64 0x10000 0x1ffff
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* 64 0x00000 0x0ffff BOTTOM
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*********************************/
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printf("total_size/page_size = %d\n", total_size / page_size);
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for (i = 0; i < (total_size / page_size) - 1; i++) {
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printf("%04d at address: 0x%08x\n", i, i * page_size);
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block_erase_m29f400bt(bios, bios + i * page_size);
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write_page_m29f400bt(bios, buf + i * page_size,
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bios + i * page_size, page_size);
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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");
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}
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printf("%04d at address: 0x%08x\n", 7, 0x70000);
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block_erase_m29f400bt(bios, bios + 0x70000);
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write_page_m29f400bt(bios, buf + 0x70000, bios + 0x70000, 32 * 1024);
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printf("%04d at address: 0x%08x\n", 8, 0x78000);
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block_erase_m29f400bt(bios, bios + 0x78000);
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write_page_m29f400bt(bios, buf + 0x78000, bios + 0x78000, 8 * 1024);
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printf("%04d at address: 0x%08x\n", 9, 0x7a000);
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block_erase_m29f400bt(bios, bios + 0x7a000);
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write_page_m29f400bt(bios, buf + 0x7a000, bios + 0x7a000, 8 * 1024);
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printf("%04d at address: 0x%08x\n", 10, 0x7c000);
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block_erase_m29f400bt(bios, bios + 0x7c000);
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write_page_m29f400bt(bios, buf + 0x7c000, bios + 0x7c000, 16 * 1024);
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printf("\n");
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//protect_m29f400bt (bios);
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return 0;
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}
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int write_linuxbios_m29f400bt(struct flashchip *flash, uint8_t *buf)
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{
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volatile uint8_t *bios = flash->virtual_memory;
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printf("Programming Page:\n ");
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/*********************************
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*Pages for M29F400BT:
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* 16 0x7c000 0x7ffff TOP
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* 8 0x7a000 0x7bfff
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* 8 0x78000 0x79fff
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* 32 0x70000 0x77fff
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* 64 0x60000 0x6ffff
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* 64 0x50000 0x5ffff
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* 64 0x40000 0x4ffff
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*---------------------------------
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* 64 0x30000 0x3ffff
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* 64 0x20000 0x2ffff
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* 64 0x10000 0x1ffff
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* 64 0x00000 0x0ffff BOTTOM
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*********************************/
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printf("%04d at address: 0x%08x\n", 7, 0x00000);
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block_erase_m29f400bt(bios, bios + 0x00000);
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write_page_m29f400bt(bios, buf + 0x00000, bios + 0x00000, 64 * 1024);
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printf("%04d at address: 0x%08x\n", 7, 0x10000);
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block_erase_m29f400bt(bios, bios + 0x10000);
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write_page_m29f400bt(bios, buf + 0x10000, bios + 0x10000, 64 * 1024);
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printf("%04d at address: 0x%08x\n", 7, 0x20000);
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block_erase_m29f400bt(bios, bios + 0x20000);
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write_page_m29f400bt(bios, buf + 0x20000, bios + 0x20000, 64 * 1024);
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printf("%04d at address: 0x%08x\n", 7, 0x30000);
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block_erase_m29f400bt(bios, bios + 0x30000);
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write_page_m29f400bt(bios, buf + 0x30000, bios + 0x30000, 64 * 1024);
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printf("\n");
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//protect_m29f400bt (bios);
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return 0;
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}
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