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flashrom/m29f400bt.c
Carl-Daniel Hailfinger 30f7cb2f3c Flashrom only checks for very few chips if the erase worked 
And even when it checks if the erase worked, the result of that check is
often ignored.

Convert all erase functions and actually check return codes
almost everywhere.
Check inside all erase_* routines if erase worked, not outside.
erase_sector_jedec and erase_block_jedec have changed prototypes to
enable erase checking.

Uwe successfully tested LPC on an CK804 box and SPI on some SB600 box.

Corresponding to flashrom svn r595.

Signed-off-by: Carl-Daniel Hailfinger <c-d.hailfinger.devel.2006@gmx.net>
Signed-off-by: Urja Rannikko <urjaman@gmail.com>
Acked-by: Uwe Hermann <uwe@hermann-uwe.de>
2009-06-15 17:23:36 +00:00

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/*
* 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(chipaddr bios)
{
chip_writeb(0xAA, bios + 0xAAA);
chip_writeb(0x55, bios + 0x555);
chip_writeb(0xA0, bios + 0xAAA);
programmer_delay(200);
}
void write_page_m29f400bt(chipaddr bios, uint8_t *src,
chipaddr 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);
//chip_writeb(0xF0, bios);
//programmer_delay(5);
toggle_ready_jedec(dst);
printf
("Value in the flash at address 0x%lx = %#x, want %#x\n",
(dst - bios), chip_readb(dst), *src);
dst++;
src++;
}
}
int probe_m29f400bt(struct flashchip *flash)
{
chipaddr bios = flash->virtual_memory;
uint8_t id1, id2;
chip_writeb(0xAA, bios + 0xAAA);
chip_writeb(0x55, bios + 0x555);
chip_writeb(0x90, bios + 0xAAA);
programmer_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);
programmer_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)
{
chipaddr 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);
programmer_delay(10);
toggle_ready_jedec(bios);
if (check_erased_range(flash, 0, flash->total_size * 1024)) {
fprintf(stderr, "ERASE FAILED!\n");
return -1;
}
return 0;
}
int block_erase_m29f400bt(struct flashchip *flash, int start, int len)
{
chipaddr bios = flash->virtual_memory;
chipaddr dst = bios + start;
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);
chip_writeb(0x30, dst);
programmer_delay(10);
toggle_ready_jedec(bios);
if (check_erased_range(flash, start, len)) {
fprintf(stderr, "ERASE FAILED!\n");
return -1;
}
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;
chipaddr 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);
if (block_erase_m29f400bt(flash, i * page_size, page_size)) {
fprintf(stderr, "ERASE FAILED!\n");
return -1;
}
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);
if (block_erase_m29f400bt(flash, 0x70000, 32 * 1024)) {
fprintf(stderr, "ERASE FAILED!\n");
return -1;
}
write_page_m29f400bt(bios, buf + 0x70000, bios + 0x70000, 32 * 1024);
printf("%04d at address: 0x%08x\n", 8, 0x78000);
if (block_erase_m29f400bt(flash, 0x78000, 8 * 1024)) {
fprintf(stderr, "ERASE FAILED!\n");
return -1;
}
write_page_m29f400bt(bios, buf + 0x78000, bios + 0x78000, 8 * 1024);
printf("%04d at address: 0x%08x\n", 9, 0x7a000);
if (block_erase_m29f400bt(flash, 0x7a000, 8 * 1024)) {
fprintf(stderr, "ERASE FAILED!\n");
return -1;
}
write_page_m29f400bt(bios, buf + 0x7a000, bios + 0x7a000, 8 * 1024);
printf("%04d at address: 0x%08x\n", 10, 0x7c000);
if (block_erase_m29f400bt(flash, 0x7c000, 16 * 1024)) {
fprintf(stderr, "ERASE FAILED!\n");
return -1;
}
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)
{
chipaddr 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);
if (block_erase_m29f400bt(flash, 0x00000, 64 * 1024)) {
fprintf(stderr, "ERASE FAILED!\n");
return -1;
}
write_page_m29f400bt(bios, buf + 0x00000, bios + 0x00000, 64 * 1024);
printf("%04d at address: 0x%08x\n", 7, 0x10000);
if (block_erase_m29f400bt(flash, 0x10000, 64 * 1024)) {
fprintf(stderr, "ERASE FAILED!\n");
return -1;
}
write_page_m29f400bt(bios, buf + 0x10000, bios + 0x10000, 64 * 1024);
printf("%04d at address: 0x%08x\n", 7, 0x20000);
if (block_erase_m29f400bt(flash, 0x20000, 64 * 1024)) {
fprintf(stderr, "ERASE FAILED!\n");
return -1;
}
write_page_m29f400bt(bios, buf + 0x20000, bios + 0x20000, 64 * 1024);
printf("%04d at address: 0x%08x\n", 7, 0x30000);
if (block_erase_m29f400bt(flash, 0x30000, 64 * 1024)) {
fprintf(stderr, "ERASE FAILED!\n");
return -1;
}
write_page_m29f400bt(bios, buf + 0x30000, bios + 0x30000, 64 * 1024);
printf("\n");
//protect_m29f400bt (bios);
return 0;
}
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