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Нужно добавить в jtag-brecis-ok поддержку sst flash

ruzalit
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ruzalit

ruzalit

Posted
Posted

Привет всем!)

 

 

Подскажите, кто может пнёт в правильном направлении, нужно добавить поддержку флэшь SST39VF160

 

$ ./jtag.exe

JTAG Tools 0.6-cvs-20051228

Copyright © 2002, 2003 ETC s.r.o.

JTAG Tools is free software, covered by the GNU General Public License, and you

are

welcome to change it and/or distribute copies of it under certain conditions.

There is absolutely no warranty for JTAG Tools.

 

Warning: JTAG Tools may damage your hardware! Type "quit" to exit!

 

Type "help" for help.

 

jtag> include athsw

Initializing Macraigor Wiggler JTAG Cable on parallel port at 0x378

IR length: 5

Chain length: 1

Device Id: 00000000000000000000000000000001

Manufacturer: Atheros

Part: ar2312

Stepping: 1

Filename: /usr/local/share/jtag/atheros/ar2312/ar2312

ImpCode=01000000010000000100000000000000

EJTAG version: 2.6

EJTAG Implementation flags: R4k ASID_8 NoDMA MIPS32

dev ID=004f man ID=0000

Using CFI flash chip detection, not jedec

Flash not found!

No. Manufacturer Part Stepping Instruction

Register

-------------------------------------------------------------------------------

-------------

0 Atheros ar2312 1 EJTAG_DATA

EJDATA

 

Active bus:

*0: EJTAG compatible bus driver via PrAcc (JTAG part No. 0)

start: 0x00000000, length: 0x20000000, data width: 8 bit

start: 0x20000000, length: 0x20000000, data width: 16 bit

start: 0x40000000, length: 0x20000000, data width: 32 bit

ruzalit

ruzalit

Posted
  • Author
Posted

Спасибо за подсказку, а можно пример поточнее, посмотел, но сам по ходу не разберусь, что к чему обращается и от чего зависит и где именно нужно внести изменения, в файлике amd.c описание про амд флэши есть, в файле jdec.c действительно есть упоминание о флэше SST

/* SST */

#define SST39LF800 0x2781

#define SST39LF160 0x2782

 

но вот типа такого для нее я не нашел, есть только для флешей ST

 

}, {

.mfr_id = MANUFACTURER_ST,

.dev_id = M29W160DT,

.name = "ST M29W160DT",

.size = 0x00200000,

.numeraseregions = 4,

.regions = {

{ .offset = 0x000000, .erasesize = 0x10000, .numblocks = 31 },

{ .offset = 0x1F0000, .erasesize = 0x08000, .numblocks = 1 },

{ .offset = 0x1F8000, .erasesize = 0x02000, .numblocks = 2 },

{ .offset = 0x1FC000, .erasesize = 0x04000, .numblocks = 1 }

я изменил это дело на

/* SST */

#define SST39LF800 0x2781

#define SST39VF160 0x2782

}, {

.mfr_id = MANUFACTURER_SST,

.dev_id = SST39VF160,

.name = "ST SST39VF160",

.size = 0x00200000,

.numeraseregions = 4,

.regions = {

{ .offset = 0x000000, .erasesize = 0x10000, .numblocks = 31 },

{ .offset = 0x1F0000, .erasesize = 0x08000, .numblocks = 1 },

{ .offset = 0x1F8000, .erasesize = 0x02000, .numblocks = 2 },

{ .offset = 0x1FC000, .erasesize = 0x04000, .numblocks = 1 }

Не помогло, может по новой инсталировать надо уже с изменениями? Что еще нужно, или я не так копаю.

 

 

ruzalit

ruzalit

Posted
  • Author
Posted (edited)

Спасибо tchern за помощь =)

Я сам по поиску не находил такую сборку с поддержкой SST, посмотрел в сравнении с той, что у меня. Нашел изменения в файликах, это ваша чтоли?

jtag-brecis-ok_ss\libbrux\flash\detectflash.c

Было

}

 

cfi = &cfi_array->cfi_chips[0]->cfi;

 

/* detect CFI capable devices */

/* TODO: Low chip only */

/* see 4.3.2 in [1] */

printf( _("Query identification string:\n") );

/* see section 2 in [2] */

switch (cfi->identification_string.pri_id_code) {

case CFI_VENDOR_NULL:

s = N_("null");

break;

case CFI_VENDOR_INTEL_ECS:

s = N_("Intel/Sharp Extended Command Set");

break;

case CFI_VENDOR_AMD_SCS:

s = N_("AMD/Fujitsu Standard Command Set");

break;

case CFI_VENDOR_INTEL_SCS:

s = N_("Intel Standard Command Set");

break;

case CFI_VENDOR_AMD_ECS:

s = N_("AMD/Fujitsu Extended Command Set");

break;

case CFI_VENDOR_MITSUBISHI_SCS:

s = N_("Mitsubishi Standard Command Set");

break;

case CFI_VENDOR_MITSUBISHI_ECS:

s = N_("Mitsubishi Extended Command Set");

break;

case CFI_VENDOR_SST_PWCS:

s = N_("Page Write Command Set");

break;

default:

s = N_("unknown!!!");

break;

}

printf( _("\tPrimary Algorithm Command Set and Control Interface ID Code: 0x%04X (%s)\n"), cfi->identification_string.pri_id_code, _(s) );

switch (cfi->identification_string.alt_id_code) {

case CFI_VENDOR_NULL:

s = N_("null");

break;

case CFI_VENDOR_INTEL_ECS:

s = N_("Intel/Sharp Extended Command Set");

break;

case CFI_VENDOR_AMD_SCS:

s = N_("AMD/Fujitsu Standard Command Set");

break;

case CFI_VENDOR_INTEL_SCS:

s = N_("Intel Standard Command Set");

break;

case CFI_VENDOR_AMD_ECS:

s = N_("AMD/Fujitsu Extended Command Set");

break;

case CFI_VENDOR_MITSUBISHI_SCS:

s = N_("Mitsubishi Standard Command Set");

break;

case CFI_VENDOR_MITSUBISHI_ECS:

s = N_("Mitsubishi Extended Command Set");

break;

case CFI_VENDOR_SST_PWCS:

s = N_("Page Write Command Set");

break;

default:

s = N_("unknown!!!");

break;

}

 

сделал

 

}

 

cfi = &cfi_array->cfi_chips[0]->cfi;

 

/* detect CFI capable devices */

/* TODO: Low chip only */

/* see 4.3.2 in [1] */

printf( _("Query identification string:\n") );

/* see section 2 in [2] */

switch (cfi->identification_string.pri_id_code) {

case CFI_VENDOR_NULL:

s = N_("null");

break;

case CFI_VENDOR_INTEL_ECS:

s = N_("Intel/Sharp Extended Command Set");

break;

case CFI_VENDOR_AMD_SCS:

s = N_("AMD/Fujitsu Standard Command Set");

break;

case CFI_VENDOR_INTEL_SCS:

s = N_("Intel Standard Command Set");

break;

case CFI_VENDOR_AMD_ECS:

s = N_("AMD/Fujitsu Extended Command Set");

break;

case CFI_VENDOR_MITSUBISHI_SCS:

s = N_("Mitsubishi Standard Command Set");

break;

case CFI_VENDOR_MITSUBISHI_ECS:

s = N_("Mitsubishi Extended Command Set");

break;

case CFI_VENDOR_SST_SCS:

s = N_("SST Standard Command Set");

break;

case CFI_VENDOR_SST_ECS:

s = N_("SST Extended Command Set");

break;

case CFI_VENDOR_SST_PWCS:

s = N_("Page Write Command Set");

break;

default:

s = N_("unknown!!!");

break;

}

printf( _("\tPrimary Algorithm Command Set and Control Interface ID Code: 0x%04X (%s)\n"), cfi->identification_string.pri_id_code, _(s) );

switch (cfi->identification_string.alt_id_code) {

case CFI_VENDOR_NULL:

s = N_("null");

break;

case CFI_VENDOR_INTEL_ECS:

s = N_("Intel/Sharp Extended Command Set");

break;

case CFI_VENDOR_AMD_SCS:

s = N_("AMD/Fujitsu Standard Command Set");

break;

case CFI_VENDOR_INTEL_SCS:

s = N_("Intel Standard Command Set");

break;

case CFI_VENDOR_AMD_ECS:

s = N_("AMD/Fujitsu Extended Command Set");

break;

case CFI_VENDOR_MITSUBISHI_SCS:

s = N_("Mitsubishi Standard Command Set");

break;

case CFI_VENDOR_MITSUBISHI_ECS:

s = N_("Mitsubishi Extended Command Set");

break;

case CFI_VENDOR_SST_SCS:

s = N_("SST Standard Command Set");

break;

case CFI_VENDOR_SST_ECS:

s = N_("SST Extended Command Set");

break;

case CFI_VENDOR_SST_PWCS:

s = N_("Page Write Command Set");

break;

default:

s = N_("unknown!!!");

break;

}

 

jtag-brecis-ok_ss\libbrux\flash\jedec.c

сделал

 

/*SST*/

#define SST39LF800 0x2781

#define SST39LF160 0x2782

#define SST39VF160 0x2782

 

}, {

.mfr_id = MANUFACTURER_SST,

.dev_id = SST39VF160,

.name = "SST SST39VF160",

.size = 0x00200000,

.numeraseregions = 4,

.regions = {

{ .offset = 0x000000, .erasesize = 0x10000, .numblocks = 31 },

{ .offset = 0x1F0000, .erasesize = 0x08000, .numblocks = 1 },

{ .offset = 0x1F8000, .erasesize = 0x02000, .numblocks = 2 },

{ .offset = 0x1FC000, .erasesize = 0x04000, .numblocks = 1 }

}

 

jtag-brecis-ok_ss\include-0.4.2\device\flash\cfi.h

а после инсталяции создается папка C:\cygwin\usr\local\include

он находится в ней по пути C:\cygwin\usr\local\include\openwince\device\flash\cfi.h

 

было

 

/* Algorithm command set & control interface ID codes - see Table 1 in [2] */

 

#define CFI_VENDOR_NULL 0x0000

#define CFI_VENDOR_INTEL_ECS 0x0001

#define CFI_VENDOR_AMD_SCS 0x0002

#define CFI_VENDOR_INTEL_SCS 0x0003

#define CFI_VENDOR_AMD_ECS 0x0004

#define CFI_VENDOR_MITSUBISHI_SCS 0x0100

#define CFI_VENDOR_MITSUBISHI_ECS 0x0101

#define CFI_VENDOR_SGS_SCS 0x0020

#define CFI_VENDOR_SST_SCS 0x00bf

#define CFI_VENDOR_SST_PWCS 0x0102

 

сделал

 

/* Algorithm command set & control interface ID codes - see Table 1 in [2] */

 

#define CFI_VENDOR_NULL 0x0000

#define CFI_VENDOR_INTEL_ECS 0x0001

#define CFI_VENDOR_AMD_SCS 0x0002

#define CFI_VENDOR_INTEL_SCS 0x0003

#define CFI_VENDOR_AMD_ECS 0x0004

#define CFI_VENDOR_MITSUBISHI_SCS 0x0100

#define CFI_VENDOR_MITSUBISHI_ECS 0x0101

#define CFI_VENDOR_SGS_SCS 0x0020

#define CFI_VENDOR_SST_ECS 0x00bf хотя вот здесь сомневаюсь

#define CFI_VENDOR_SST_SCS 0x00bf

#define CFI_VENDOR_SST_PWCS 0x0102

 

jtag-brecis-ok_ss\libbrux\flash\sst.c

 

он похоже из amd.c переделан, а как его правильно подхватить, в оборот то взять.

добавил в него

case 0x2781:

printf( _("SST39LF800") );

break;

case 0x2782:

printf( _("SST39LF160") );

break;

case 0x2782:

printf( _("SST39VF160") );

break;

 

 

flash_driver_t sst_16_flash_driver = {

2, /* buswidth */

N_("SST Standard Command Set"),

N_("supported: SST 39VF160, 39LF160; 1x16 Bit"),

sst_flash_autodetect16,

sst_flash_print_info,

sst_flash_erase_block,

sst_flash_unlock_block,

sst_flash_program,

sst_flash_read_array,

};

 

flash_driver_t sst_8_flash_driver = {

1, /* buswidth */

N_("SST Standard Command Set"),

N_("supported: SST 39VF020, 39LF800; 1x8 Bit"),

sst_flash_autodetect8,

sst_flash_print_info,

sst_flash_erase_block,

sst_flash_unlock_block,

sst_flash_program,

sst_flash_read_array,

};

 

Кстати сборка jtag-brecis-ok_ss без изменений даже прямо из архива не инсталировалась, ошибки вышли, поэтому я в старую просто закинул эти файлы.

 

Выходной день убил, а так и не запустил, эх, помогите же, не хочется здаваться =) , что то я упустил, что вот только.

Edited by ruzalit
tchern

tchern

Posted
Posted

Все вроде ка надо

 

если вы взяли только файлы то надо добавить их в /librux/make.am make.in потом ./configure

 

и вот еще вопрос правильно ли это?

 

.size = 0x00200000,

.numeraseregions = 4,

.regions = {

{ .offset = 0x000000, .erasesize = 0x10000, .numblocks = 31 },

{ .offset = 0x1F0000, .erasesize = 0x08000, .numblocks = 1 },

{ .offset = 0x1F8000, .erasesize = 0x02000, .numblocks = 2 },

{ .offset = 0x1FC000, .erasesize = 0x04000, .numblocks = 1 }

}

 

а то чегонибудь затрет не то

 

ruzalit

ruzalit

Posted
  • Author
Posted

Здравствуйте tchern, спасибо Вам за помощь.

Все сделал, как вы мне написали,

Все сделал, как сказали

 

C:\cygwin\usr\local\jtag\libbrux\Makefile

 

добавил

am_libbrux_a_OBJECTS = cmd.$(OBJEXT) help.$(OBJEXT) quit.$(OBJEXT) \

cmd_detectflash.$(OBJEXT) cfi.$(OBJEXT) jedec.$(OBJEXT) \

detectflash.$(OBJEXT) amd.$(OBJEXT) intel.$(OBJEXT) sst.$(OBJEXT)

libbrux_a_SOURCES = \

cmd/cmd.c \

cmd/help.c \

cmd/quit.c \

cmd/cmd_detectflash.c \

flash/cfi.c \

flash/jedec.c \

flash/detectflash.c \

flash/amd.c \

flash/intel.c \

flash/sst.c

 

distclean-compile:

-rm -f *.tab.c

 

include ./$(DEPDIR)/amd.Po

include ./$(DEPDIR)/cfi.Po

include ./$(DEPDIR)/cmd.Po

include ./$(DEPDIR)/cmd_detectflash.Po

include ./$(DEPDIR)/detectflash.Po

include ./$(DEPDIR)/help.Po

include ./$(DEPDIR)/intel.Po

include ./$(DEPDIR)/sst.Po

include ./$(DEPDIR)/jedec.Po

include ./$(DEPDIR)/quit.Po

 

sst.o: flash/sst.c

if $(CC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) $(CPPFLAGS) $(AM_CFLAGS) $(CFLAGS) -MT sst.o -MD -MP -MF "$(DEPDIR)/sst.Tpo" -c -o sst.o `test -f 'flash/sst.c' || echo '$(srcdir)/'`flash/sst.c; \

then mv -f "$(DEPDIR)/sst.Tpo" "$(DEPDIR)/sst.Po"; else rm -f "$(DEPDIR)/sst.Tpo"; exit 1; fi

# source='flash/sst.c' object='sst.o' libtool=no \

# DEPDIR=$(DEPDIR) $(CCDEPMODE) $(depcomp) \

# $(CC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) $(CPPFLAGS) $(AM_CFLAGS) $(CFLAGS) -c -o sst.o `test -f 'flash/sst.c' || echo '$(srcdir)/'`flash/sst.c

 

sst.obj: flash/sst.c

if $(CC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) $(CPPFLAGS) $(AM_CFLAGS) $(CFLAGS) -MT sst.obj -MD -MP -MF "$(DEPDIR)/sst.Tpo" -c -o sst.obj `if test -f 'flash/sst.c'; then $(CYGPATH_W) 'flash/sst.c'; else $(CYGPATH_W) '$(srcdir)/flash/sst.c'; fi`; \

then mv -f "$(DEPDIR)/sst.Tpo" "$(DEPDIR)/sst.Po"; else rm -f "$(DEPDIR)/sst.Tpo"; exit 1; fi

# source='flash/sst.c' object='sst.obj' libtool=no \

# DEPDIR=$(DEPDIR) $(CCDEPMODE) $(depcomp) \

# $(CC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) $(CPPFLAGS) $(AM_CFLAGS) $(CFLAGS) -c -o sst.obj `if test -f 'flash/sst.c'; then $(CYGPATH_W) 'flash/sst.c'; else $(CYGPATH_W) '$(srcdir)/flash/sst.c'; fi`

uninstall-info-am:

 

C:\cygwin\usr\local\jtag\libbrux\Makefile\Makefile.am

 

добавил

 

libbrux_a_SOURCES = \

cmd/cmd.c \

cmd/help.c \

cmd/quit.c \

cmd/cmd_detectflash.c \

flash/cfi.c \

flash/jedec.c \

flash/detectflash.c \

flash/amd.c \

flash/intel.c \

flash/sst.c

 

 

C:\cygwin\usr\local\jtag\libbrux\Makefile.in

 

добавил

 

libbrux_a_LIBADD =

am_libbrux_a_OBJECTS = cmd.$(OBJEXT) help.$(OBJEXT) quit.$(OBJEXT) \

cmd_detectflash.$(OBJEXT) cfi.$(OBJEXT) jedec.$(OBJEXT) \

detectflash.$(OBJEXT) amd.$(OBJEXT) intel.$(OBJEXT) sst.$(OBJEXT)

 

noinst_LIBRARIES = libbrux.a

libbrux_a_SOURCES = \

cmd/cmd.c \

cmd/help.c \

cmd/quit.c \

cmd/cmd_detectflash.c \

flash/cfi.c \

flash/jedec.c \

flash/detectflash.c \

flash/amd.c \

flash/intel.c \

flash/sst.c

 

 

@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/amd.Po@am__quote@

@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/cfi.Po@am__quote@

@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/cmd.Po@am__quote@

@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/cmd_detectflash.Po@am__quote@

@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/detectflash.Po@am__quote@

@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/help.Po@am__quote@

@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/intel.Po@am__quote@

@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/sst.Po@am__quote@

@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/jedec.Po@am__quote@

@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/quit.Po@am__quote@

 

sst.o: flash/sst.c

@am__fastdepCC_TRUE@ if $(CC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) $(CPPFLAGS) $(AM_CFLAGS) $(CFLAGS) -MT sst.o -MD -MP -MF "$(DEPDIR)/sst.Tpo" -c -o sst.o `test -f 'flash/sst.c' || echo '$(srcdir)/'`flash/sst.c; \

@am__fastdepCC_TRUE@ then mv -f "$(DEPDIR)/sst.Tpo" "$(DEPDIR)/sst.Po"; else rm -f "$(DEPDIR)/sst.Tpo"; exit 1; fi

@AMDEP_TRUE@@am__fastdepCC_FALSE@ source='flash/sst.c' object='sst.o' libtool=no @AMDEPBACKSLASH@

@AMDEP_TRUE@@am__fastdepCC_FALSE@ DEPDIR=$(DEPDIR) $(CCDEPMODE) $(depcomp) @AMDEPBACKSLASH@

@am__fastdepCC_FALSE@ $(CC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) $(CPPFLAGS) $(AM_CFLAGS) $(CFLAGS) -c -o sst.o `test -f 'flash/sst.c' || echo '$(srcdir)/'`flash/sst.c

 

sst.obj: flash/sst.c

@am__fastdepCC_TRUE@ if $(CC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) $(CPPFLAGS) $(AM_CFLAGS) $(CFLAGS) -MT sst.obj -MD -MP -MF "$(DEPDIR)/sst.Tpo" -c -o sst.obj `if test -f 'flash/sst.c'; then $(CYGPATH_W) 'flash/sst.c'; else $(CYGPATH_W) '$(srcdir)/flash/sst.c'; fi`; \

@am__fastdepCC_TRUE@ then mv -f "$(DEPDIR)/sst.Tpo" "$(DEPDIR)/sst.Po"; else rm -f "$(DEPDIR)/sst.Tpo"; exit 1; fi

@AMDEP_TRUE@@am__fastdepCC_FALSE@ source='flash/sst.c' object='sst.obj' libtool=no @AMDEPBACKSLASH@

@AMDEP_TRUE@@am__fastdepCC_FALSE@ DEPDIR=$(DEPDIR) $(CCDEPMODE) $(depcomp) @AMDEPBACKSLASH@

@am__fastdepCC_FALSE@ $(CC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) $(CPPFLAGS) $(AM_CFLAGS) $(CFLAGS) -c -o sst.obj `if test -f 'flash/sst.c'; then $(CYGPATH_W) 'flash/sst.c'; else $(CYGPATH_W) '$(srcdir)/flash/sst.c'; fi`

uninstall-info-am:

 

Все проинсталировалось, jtag собрался, но все одно, не видит флэша.

 

По поводу того, правильные ли это параметры флэша, не знаю, взял из соседней ST тоже 2MB флэшка,

 

size = 0x00200000,

.numeraseregions = 4,

.regions = {

{ .offset = 0x000000, .erasesize = 0x10000, .numblocks = 31 },

{ .offset = 0x1F0000, .erasesize = 0x08000, .numblocks = 1 },

{ .offset = 0x1F8000, .erasesize = 0x02000, .numblocks = 2 },

{ .offset = 0x1FC000, .erasesize = 0x04000, .numblocks = 1 }

}

 

скажу только, что флэшка по описанию

 

sst39vf160

Sector: 512

Size: 2MB

ID:278200BF

Width:16-bit

 

Прошу не бросать меня на пол пути, помогите до конца дойти.

 

 

 

 

 

 

 

Вот кстати из jtager-0.3.0.tar.tar

нашел файлик sst39vf160.c

 

 

/*

* mtd/sst39vf160.c : implements the read/write ops of SST39VF160 flash chip.

*

* Copyright © 2003, Rongkai Zhan <zhanrk@163.com>

*

* 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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA

*/

 

/* $Id: sst39vf160.c,v 1.2 2004/10/17 08:04:28 zhanrk Exp $ */

 

/*

* References:

* [1] <<SST39LF160/SST39VF160 datasheet>>

*/

 

#include <unistd.h>

#include <stdio.h>

#include <stdlib.h>

#include <string.h>

 

#include "jtager.h"

#include "target.h"

#include "flash.h"

 

#define MANU_ID 0x00BF /* SST Manufacturer ID code */

#define DEVICE_ID 0x2782 /* SST 39VF160 device code */

 

#define SECTOR_SIZE (2 * 1024 * 2) /* 2K words = 4K Bytes */

#define CHIP_SIZE (1024 * 1024 * 2) /* 1M words = 2M Bytes */

#define CHIP_BASE (sst39vf160.base)

 

#define SECTOR_MASK (SECTOR_SIZE - 1)

 

#define CMD_ADDR1 (sst39vf160.base + (0x5555 << 1))

#define CMD_ADDR2 (sst39vf160.base + (0x2aaa << 1))

 

#define DQ6_MASK 0x40

#define DQ7_MASK 0x80

 

flash_t sst39vf160;

 

static int chip_probe(u32 base)

{

u16 id1 = 0, id2 = 0;

u16 softid_cmd[4] = {0xAAAA, 0x5555, 0x9090, 0xF0F0};

u16 old1, old2;

u32 old_base = CHIP_BASE;

int ret;

 

CHIP_BASE = base; /* update chip base address */

 

/* save the contents of these two memory units */

old1 = read16(CMD_ADDR1);

old2 = read16(CMD_ADDR2);

 

/* write ID commands */

write16(softid_cmd[0], CMD_ADDR1);

write16(softid_cmd[1], CMD_ADDR2);

write16(softid_cmd[2], CMD_ADDR1);

 

/* read MANU_ID & DEVICE_ID */

id1 = read16(base + (0x00 << 1));

id2 = read16(base + (0x01 << 1));

 

/* check Manufacture ID and Device ID */

if ((id1 == MANU_ID) && (id2 == DEVICE_ID))

ret = 0;

else

ret = -1;

 

/* Software ID Exit / CFI Exit */

write16(softid_cmd[0], CMD_ADDR1);

write16(softid_cmd[1], CMD_ADDR2);

write16(softid_cmd[3], CMD_ADDR1);

 

if (ret) {

CHIP_BASE = old_base;

write16(old1, CMD_ADDR1);

write16(old2, CMD_ADDR2);

}

return ret;

} /* end of chip_probe (...) */

 

/*

* DQ6 is still toggling bit?

*/

static int chip_is_busy(u32 addr)

{

u16 oldval, newval;

u32 count = 0;

int ret = -1, timeout = 0;

 

addr = addr16_align(addr);

 

while (1) {

oldval = read16(addr);

newval = read16(addr);

if ((oldval & DQ6_MASK) == (newval & DQ6_MASK)) {

/* DQ6 stops toggle */

ret = 0;

break;

}

 

count++;

if (count > 0xF0000000) {

timeout = 1;

break;

}

}

 

if (timeout) {

/*

* oh, this is the last chance for success.

*/

oldval = read16(addr);

newval = read16(addr);

if ((oldval & DQ6_MASK) == (newval & DQ6_MASK))

ret = 0;

else

ret = -1;

}

return ret;

}

 

/**

* erase_sector - erase one sector

* @addr: any address in the sector to be erased.

*

* Return value: If success, return 0. Otherwise, return -1.

*/

static int erase_sector(u32 addr)

{

u16 erase_sector_cmd[6] = {0xAAAA, 0x5555, 0x8080,

0xAAAA, 0x5555, 0x3030};

u32 sector_addr = addr & (~((u32)SECTOR_SIZE - 1));

int ret;

 

write16(erase_sector_cmd[0], CMD_ADDR1);

write16(erase_sector_cmd[1], CMD_ADDR2);

write16(erase_sector_cmd[2], CMD_ADDR1);

write16(erase_sector_cmd[3], CMD_ADDR1);

write16(erase_sector_cmd[4], CMD_ADDR2);

write16(erase_sector_cmd[5], sector_addr);

 

/* chip is busy ? */

sector_addr += (SECTOR_SIZE - 2);

ret = chip_is_busy(sector_addr);

return ret;

} /* end of erase_sector(...) */

 

static int erase_chip(void)

{

u16 erase_chip_cmd[6] = {0xAAAA, 0x5555, 0x8080,

0xAAAA, 0x5555, 0x1010};

u32 base, wait = 500000;

int ret;

 

write16(erase_chip_cmd[0], CMD_ADDR1);

write16(erase_chip_cmd[1], CMD_ADDR2);

write16(erase_chip_cmd[2], CMD_ADDR1);

write16(erase_chip_cmd[3], CMD_ADDR1);

write16(erase_chip_cmd[4], CMD_ADDR2);

write16(erase_chip_cmd[5], CMD_ADDR1);

 

/*

* Chip erase is a long way, we just wait for a while.

*/

while (wait)

wait--;

 

base = CHIP_BASE + (CHIP_SIZE - 2);

ret = chip_is_busy(base);

 

return ret;

} /* end of erase_chip() */

 

/**

* flash_write - write flash memory with the source data from target memory or host buffer

* @start_address: The flash start address to be written.

* @bytenr: how many bytes are to be written.

* @source_address: The address of source data.

* @from_host: If from_host == 0, we read the source data from a target memory block

* If from_host != 0, we read the source data from a host buffer.

*/

static int flash_write(u32 start_address, u32 bytenr, u32 source_address, int from_host)

{

u16 pgm_cmd[3] = {0xAAAA, 0x5555, 0xA0A0};

u32 current_addr;

int i, retry, ret;

u16 data;

 

if ((start_address < CHIP_BASE)

|| (start_address + bytenr - 1) > (CHIP_BASE + CHIP_SIZE - 1))

return -1; /* out of range */

 

/* align address with the 16-bit word boundary */

current_addr = addr16_align(start_address);

 

for (i = 0; i < (bytenr/2); i++) {

if (from_host)

data = *(u16 *)source_address; /* read data from host buffer */

else

data = read16(source_address);

source_address += 2;

if (data == 0xFFFF) {

current_addr += 2;

continue;

}

retry = 0;

retry_pgm:

write16(pgm_cmd[0], CMD_ADDR1);

write16(pgm_cmd[1], CMD_ADDR2);

write16(pgm_cmd[2], CMD_ADDR1);

write16(data, current_addr);

 

ret = chip_is_busy(current_addr);

if (ret && retry < 3) {

retry++;

goto retry_pgm;

} else if (ret) {

break; /* failure */

}

 

current_addr += 2;

if ((i + 1)%(2*1024) == 0) {

printf(".");

fflush(stdout);

}

} /* end of for (i = 0; ... ) */

 

return ret;

} /* end of flash_write(...) */

 

flash_t sst39vf160 = {

.name = "sst39vf160",

.mfr_id = MANU_ID,

.dev_id = DEVICE_ID,

.base = 0x0L, /* start physical address */

.chip_size = CHIP_SIZE,

.sector_size = SECTOR_SIZE,

.bus_width = 16,

 

.probe = chip_probe,

.erase_sector = erase_sector,

.erase_chip = erase_chip,

.write = flash_write,

};

 

 

его можно прикрутить как нибудь?

 

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