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

Add support for the Winbond W29EE011. 

Signed-off-by: Markus Boas <ryven@ryven.de>
Acked-by: Uwe Hermann <uwe@hermann-uwe.de>



git-svn-id: svn://svn.coreboot.org/coreboot/trunk@2753 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1
This commit is contained in:
Markus Boas 2007-08-30 10:17:50 +00:00 committed by Uwe Hermann
parent 3b78de6887
commit 736c1d8618
5 changed files with 68 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
util/flashrom/Makefile
View File

@ -24,7 +24,7 @@ OBJS = chipset_enable.o board_enable.o udelay.o jedec.o sst28sf040.o \
am29f040b.o mx29f002.o sst39sf020.o m29f400bt.o w49f002u.o \
82802ab.o msys_doc.o pm49fl004.o sst49lf040.o sst49lfxxxc.o \
sst_fwhub.o layout.o lbtable.o flashchips.o flashrom.o \
sharplhf00l04.o
sharplhf00l04.o w29ee011.o
all: pciutils dep $(PROGRAM)

1
util/flashrom/README
View File

@ -150,6 +150,7 @@ SyncMOS S29C31004T
Winbond W29C011
Winbond W29C020C
Winbond W29C040P
Winbond W29EE011
Winbond W49F002U
Winbond W49V002A
Winbond W49V002FA

4
util/flashrom/flash.h
View File

@ -102,6 +102,7 @@ extern struct flashchip flashchips[];
#define W_29C011 0xC1
#define W_29C020C 0x45
#define W_29C040P 0x46
#define W_29EE011 0xC1
#define W_39V040FA 0x34
#define W_39V040A 0x3D
#define W_39V040B 0x54
@ -260,6 +261,9 @@ extern int probe_sst_fwhub(struct flashchip *flash);
extern int erase_sst_fwhub(struct flashchip *flash);
extern int write_sst_fwhub(struct flashchip *flash, uint8_t *buf);
/* w29ee011.c */
extern int probe_w29ee011(struct flashchip *flash);
/* w49f002u.c */
extern int write_49f002(struct flashchip *flash, uint8_t *buf);

2
util/flashrom/flashchips.c
View File

@ -86,6 +86,8 @@ struct flashchip flashchips[] = {
probe_jedec, erase_chip_jedec, write_jedec},
{"W29C020C", WINBOND_ID, W_29C020C, 256, 128,
probe_jedec, erase_chip_jedec, write_jedec},
{"W29EE011", WINBOND_ID, W_29C011, 128, 128,
probe_w29ee011,erase_chip_jedec, write_jedec},
{"W49F002U", WINBOND_ID, W_49F002U, 256, 128,
probe_jedec, erase_chip_jedec, write_49f002},
{"W49V002A", WINBOND_ID, W_49V002A, 256, 128,

60
util/flashrom/w29ee011.c Normal file
View File

@ -0,0 +1,60 @@
/*
* This file is part of the flashrom project.
*
* Copyright (C) 2007 Markus Boas <ryven@ryven.de>
*
* 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 probe_w29ee011(struct flashchip *flash)
{
volatile uint8_t *bios = flash->virtual_memory;
uint8_t id1, id2;
/* Issue JEDEC Product ID Entry command */
*(volatile uint8_t *)(bios + 0x5555) = 0xAA;
myusec_delay(10);
*(volatile uint8_t *)(bios + 0x2AAA) = 0x55;
myusec_delay(10);
*(volatile uint8_t *)(bios + 0x5555) = 0x80;
myusec_delay(10);
*(volatile uint8_t *)(bios + 0x5555) = 0xAA;
myusec_delay(10);
*(volatile uint8_t *)(bios + 0x2AAA) = 0x55;
myusec_delay(10);
*(volatile uint8_t *)(bios + 0x5555) = 0x60;
myusec_delay(10);
/* Read product ID */
id1 = *(volatile uint8_t *)bios;
id2 = *(volatile uint8_t *)(bios + 0x01);
/* Issue JEDEC Product ID Exit command */
*(volatile uint8_t *)(bios + 0x5555) = 0xAA;
myusec_delay(10);
*(volatile uint8_t *)(bios + 0x2AAA) = 0x55;
myusec_delay(10);
*(volatile uint8_t *)(bios + 0x5555) = 0xF0;
myusec_delay(10);
printf_debug("%s: id1 0x%x, id2 0x%x\n", __FUNCTION__, id1, id2);
if (id1 == flash->manufacture_id && id2 == flash->model_id)
return 1;
return 0;
}