mirror of
https://review.coreboot.org/flashrom.git
synced 2025-04-27 15:12:36 +02:00
b30a5ed4af
The currently used write functions (wrappers) all use helpers which perform the actual write (inner functions). The signature of the write wrappers is: int write_chip(struct flashchip *flash, uint8_t * buf); The signature of the inner write functions varied a lot. This patch changes them to: int write_part(struct flashchip *flash, uint8_t *src, int start, int len); Did you know that flashrom has only 8 inner write functions for all flash chips? write_page_write_jedec_common write_sector_jedec_common write_sector_28sf040 spi_chip_write_256_new spi_chip_write_1_new spi_aai_write_new write_page_82802ab write_page_m29f400bt Export all inner write functions. Change the function signature of wait_82802ab to eliminate single-use variables. Remove an error message in write_page_m29f400bt which was printed for every byte written regardless of success. Add sharplhf00l04.c to the list of flash chip drivers in the Makefile. While the functions in there are unused, I suspect we will need them later, and by hooking the file up we ensure that compilation won't break. Corresponding to flashrom svn r1208. Signed-off-by: Carl-Daniel Hailfinger <c-d.hailfinger.devel.2006@gmx.net> Acked-by: Uwe Hermann <uwe@hermann-uwe.de>
160 lines
4.2 KiB
C
160 lines
4.2 KiB
C
/*
|
|
* 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"
|
|
#include "chipdrivers.h"
|
|
|
|
/* WARNING!
|
|
This chip uses the standard JEDEC Addresses in 16-bit mode as word
|
|
addresses. In byte mode, 0xAAA has to be used instead of 0x555 and
|
|
0x555 instead of 0x2AA. Do *not* blindly replace with standard JEDEC
|
|
functions. */
|
|
|
|
int write_page_m29f400bt(struct flashchip *flash, uint8_t *src, int start, int len)
|
|
{
|
|
int i;
|
|
chipaddr bios = flash->virtual_memory;
|
|
chipaddr dst = flash->virtual_memory + start;
|
|
|
|
for (i = 0; i < len; 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);
|
|
toggle_ready_jedec(dst);
|
|
#if 0
|
|
/* We only want to print something in the error case. */
|
|
msg_cerr("Value in the flash at address 0x%lx = %#x, want %#x\n",
|
|
(dst - bios), chip_readb(dst), *src);
|
|
#endif
|
|
dst++;
|
|
src++;
|
|
}
|
|
|
|
/* FIXME: Ignore errors for now. */
|
|
return 0;
|
|
}
|
|
|
|
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);
|
|
|
|
msg_cdbg("%s: id1 0x%02x, id2 0x%02x\n", __func__, 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)) {
|
|
msg_cerr("ERASE FAILED!\n");
|
|
return -1;
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
int block_erase_m29f400bt(struct flashchip *flash, unsigned int start, unsigned 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(0x30, dst);
|
|
|
|
programmer_delay(10);
|
|
toggle_ready_jedec(bios);
|
|
|
|
if (check_erased_range(flash, start, len)) {
|
|
msg_cerr("ERASE FAILED!\n");
|
|
return -1;
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
int block_erase_chip_m29f400bt(struct flashchip *flash, unsigned int address, unsigned int blocklen)
|
|
{
|
|
if ((address != 0) || (blocklen != flash->total_size * 1024)) {
|
|
msg_cerr("%s called with incorrect arguments\n",
|
|
__func__);
|
|
return -1;
|
|
}
|
|
return erase_m29f400bt(flash);
|
|
}
|
|
|
|
int write_m29f400bt(struct flashchip *flash, uint8_t *buf)
|
|
{
|
|
int i;
|
|
int total_size = flash->total_size * 1024;
|
|
int page_size = flash->page_size;
|
|
|
|
for (i = 0; i < (total_size / page_size) - 1; i++) {
|
|
write_page_m29f400bt(flash, buf + i * page_size, i * page_size, page_size);
|
|
}
|
|
|
|
write_page_m29f400bt(flash, buf + 0x70000, 0x70000, 32 * 1024);
|
|
write_page_m29f400bt(flash, buf + 0x78000, 0x78000, 8 * 1024);
|
|
write_page_m29f400bt(flash, buf + 0x7a000, 0x7a000, 8 * 1024);
|
|
write_page_m29f400bt(flash, buf + 0x7c000, 0x7c000, 16 * 1024);
|
|
|
|
return 0;
|
|
}
|