GNUBoot
/
coreboot-kgpe-d16
2
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

flashrom: Driver for ST M29F002T/NT/B. T/NT TEST_OK_ PROBE READ ERASE WRITE 

Test report from Julia. Thanks!

Signed-off-by: Peter Stuge <peter@stuge.se>
Acked-by: Julia Longtin <juri@solarnetone.org>


git-svn-id: svn://svn.coreboot.org/coreboot/trunk@3917 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1
This commit is contained in:
Peter Stuge 2009-01-26 06:42:02 +00:00
parent f3bc765493
commit c39cb144e9
4 changed files with 116 additions and 6 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
util/flashrom/Makefile
View File

@ -34,7 +34,7 @@ OBJS = chipset_enable.o board_enable.o udelay.o jedec.o stm50flw0x0x.o \
w49f002u.o 82802ab.o pm49fl00x.o sst49lf040.o en29f002a.o \
sst49lfxxxc.o sst_fwhub.o layout.o cbtable.o flashchips.o physmap.o \
flashrom.o w39v080fa.o sharplhf00l04.o w29ee011.o spi.o it87spi.o \
ichspi.o w39v040c.o sb600spi.o wbsio_spi.o
ichspi.o w39v040c.o sb600spi.o wbsio_spi.o m29f002.o
all: pciutils dep $(PROGRAM)

5
util/flashrom/flash.h
View File

@ -579,6 +579,11 @@ int erase_block_jedec(volatile uint8_t *bios, unsigned int page);
int write_sector_jedec(volatile uint8_t *bios, uint8_t *src,
volatile uint8_t *dst, unsigned int page_size);
/* m29f002.c */
int erase_m29f002(struct flashchip *flash);
int write_m29f002t(struct flashchip *flash, uint8_t *buf);
int write_m29f002b(struct flashchip *flash, uint8_t *buf);
/* m29f400bt.c */
int probe_m29f400bt(struct flashchip *flash);
int erase_m29f400bt(struct flashchip *flash);

10
util/flashrom/flashchips.c
View File

@ -1641,8 +1641,8 @@ struct flashchip flashchips[] = {
.page_size = 64 * 1024,
.tested = TEST_UNTESTED,
.probe = probe_jedec,
.erase = erase_chip_jedec,
.write = write_jedec,
.erase = erase_m29f002,
.write = write_m29f002b,
},
{
@ -1652,10 +1652,10 @@ struct flashchip flashchips[] = {
.model_id = ST_M29F002T,
.total_size = 256,
.page_size = 64 * 1024,
.tested = TEST_UNTESTED,
.tested = TEST_OK_PREW,
.probe = probe_jedec,
.erase = erase_chip_jedec,
.write = write_jedec,
.erase = erase_m29f002,
.write = write_m29f002t,
},
{

105
util/flashrom/m29f002.c Normal file
View File

@ -0,0 +1,105 @@
/*
* This file is part of flashrom.
*
* Copyright (C) 2009 Peter Stuge <peter@stuge.se>
*
* 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"
int erase_m29f002(struct flashchip *flash) {
volatile uint8_t *bios = flash->virtual_memory;
*(volatile uint8_t *)(bios + 0x555) = 0xaa;
*(volatile uint8_t *)(bios + 0xaaa) = 0x55;
*(volatile uint8_t *)(bios + 0x555) = 0x80;
*(volatile uint8_t *)(bios + 0x555) = 0xaa;
*(volatile uint8_t *)(bios + 0xaaa) = 0x55;
*(volatile uint8_t *)(bios + 0x555) = 0x10;
myusec_delay(10);
toggle_ready_jedec(bios);
return 0;
}
static void rewrite_block(volatile uint8_t *bios, uint8_t *src, volatile uint8_t *dst, int size) {
/* erase */
*(volatile uint8_t *)(bios + 0x555) = 0xaa;
*(volatile uint8_t *)(bios + 0xaaa) = 0x55;
*(volatile uint8_t *)(bios + 0x555) = 0x80;
*(volatile uint8_t *)(bios + 0x555) = 0xaa;
*(volatile uint8_t *)(bios + 0xaaa) = 0x55;
*dst = 0x30;
myusec_delay(10);
toggle_ready_jedec(bios);
/* program */
while (size--) {
*(volatile uint8_t *)(bios + 0x555) = 0xaa;
*(volatile uint8_t *)(bios + 0xaaa) = 0x55;
*(volatile uint8_t *)(bios + 0x555) = 0xa0;
*dst = *src;
toggle_ready_jedec(dst);
dst++;
src++;
}
}
static void do_block(volatile uint8_t *bios, uint8_t *src, int i, unsigned long start, int size) {
printf("%d at address: 0x%08lx", i, start);
rewrite_block(bios, src + start, bios + start, 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");
}
int write_m29f002t(struct flashchip *flash, uint8_t *buf) {
int i, page_size = flash->page_size;
volatile uint8_t *bios = flash->virtual_memory;
/* M29F002(N)T has 7 blocks. From bottom to top their sizes are:
* 64k 64k 64k 32k 8k 8k 16k
* flash->page_size is set to 64k in flashchips.c
*/
printf("Programming block: ");
for (i = 0; i < 3; i++)
do_block(bios, buf, i, i*page_size, page_size);
do_block(bios, buf, i++, 0x30000, 32*1024);
do_block(bios, buf, i++, 0x38000, 8*1024);
do_block(bios, buf, i++, 0x3a000, 8*1024);
do_block(bios, buf, i++, 0x3c000, 16*1024);
printf("\n");
return 0;
}
int write_m29f002b(struct flashchip *flash, uint8_t *buf) {
int i = 0, page_size = flash->page_size;
volatile uint8_t *bios = flash->virtual_memory;
/* M29F002B has 7 blocks. From bottom to top their sizes are:
* 16k 8k 8k 32k 64k 64k 64k
* flash->page_size is set to 64k in flashchips.c
*/
printf("Programming block: ");
do_block(bios, buf, i++, 0x00000, 16*1024);
do_block(bios, buf, i++, 0x04000, 8*1024);
do_block(bios, buf, i++, 0x06000, 8*1024);
do_block(bios, buf, i++, 0x08000, 32*1024);
for (; i < 7; i++)
do_block(bios, buf, i, (i-3)*page_size, page_size);
printf("\n");
return 0;
}