How to use EP8260 MTD device?

How to use EP8260 MTD device?

[OHMURA Yutaka]

Hello,

Now I'm trying to use Embedded Planet 8260 board Flash memory with TimeSys
Linux 3.1(TSL). I have two type of this board. One has 200MHz clock, have RTC,
64MB PSDRAM, 32MB LSDRAM and 16MB Flash ROM. The other has 300MHz clock,
no RTC, 32MB PSDRAM and 8MB Flash ROM. My goal is use MTD device under TSL with
300MHz MPU board, but the board looks some other difference with 200MHz board,
so TSL can't works fine, so at first I'm trying to use MTD device with 200MHz
board. But I can't use MTD until now.
In now situation, /dev/mtd and /dev/mtdblock are normal directory and there are
nothing under the directory.

Please tell me how to use MTD on EP8260 under TSL!

Here is my .config
> # Memory Technology Devices (MTD)
> CONFIG_MTD=y
> CONFIG_MTD_DEBUG=y
> CONFIG_MTD_DEBUG_VERBOSE=3
> CONFIG_MTD_PARTITIONS=y
> CONFIG_MTD_CHAR=y
> CONFIG_MTD_BLOCK=y
> CONFIG_FTL=y

> # RAM/ROM/Flash chip drivers
> CONFIG_MTD_CFI=y
> CONFIG_MTD_JEDECPROBE=y
> CONFIG_MTD_GEN_PROBE=y
> CONFIG_MTD_CFI_AMDSTD=y	<-On board Flash memory looks AMD
				  chip but the print faint so I
				  can't read chip type
> CONFIG_MTD_CFI_AMDSTD=y
> CONFIG_MTD_OBSOLETE_CHIPS=y
> CONFIG_MTD_AMDSTD=y

> # Mapping drivers for chip access
> CONFIG_MTD_PHYSMAP=y
> CONFIG_MTD_PHYSMAP_START=FF800000	<-adjusting to 300MHz board
> CONFIG_MTD_PHYSMAP_LEN=70000000	  I hope 200MHz board can work with
					  this parameter
> CONFIG_MTD_PHYSMAP_BUSWIDTH=2
other MTD parameters are not set

Under this environment, MTD driver says
> physmap flash device: 6ffffc at ff800000
> CFI: Found no Physically mapped flash device at location zero
> RPX Lite or CLLF flash device: 2000000 at fe000000
> CFI: Found no RPX device at location zero
> $Id: ftl.c,v 1.38 2001/09/23 21:15:12 dwmw2 Exp $

This is first time to use MTD for me, so if you know good reference to use it,
please tell me too.
/usr/src/timesys/ep8260/2.4.7-timesys-3.1.180/kernel/Documents was not help me.

Regards,

Yutaka

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Re: How to use EP8260 MTD device?

[OHMURA Yutaka]

Hi,

In this ML, no one uses EP8260?
Or TSL(2.4.7 base)?

I changed my .config as follows, but still not work.
> # Memory Technology Devices (MTD)
> CONFIG_MTD=y
> CONFIG_MTD_DEBUG=y
> CONFIG_MTD_DEBUG_VERBOSE=3
> CONFIG_MTD_PARTITIONS=y
> CONFIG_MTD_CHAR=y
> CONFIG_MTD_BLOCK=y
> CONFIG_FTL=y
>
> # RAM/ROM/Flash chip drivers
> CONFIG_MTD_CFI=y
> CONFIG_MTD_GEN_PROBE=y
> CONFIG_MTD_CFI_AMDSTD=y
>
> # Mapping drivers for chip access
> CONFIG_MTD_PHYSMAP=y
> CONFIG_MTD_PHYSMAP_START=FF000000
> CONFIG_MTD_PHYSMAP_LEN=FFFFFF
> CONFIG_MTD_PHYSMAP_BUSWIDTH=2

By the way, TSL uses DEC register for timer, is this same in pure PPC-Linux?
I could't find pure PPC-Linux 2.4.7 source code...

Regards,

Yutaka

OHMURA Yutaka <ohmura@co-nss.co.jp> wrote:

>
> Hello,
>
> Now I'm trying to use Embedded Planet 8260 board Flash memory with TimeSys
> Linux 3.1(TSL). I have two type of this board. One has 200MHz clock, have RTC,
> 64MB PSDRAM, 32MB LSDRAM and 16MB Flash ROM. The other has 300MHz clock,
> no RTC, 32MB PSDRAM and 8MB Flash ROM. My goal is use MTD device under TSL with
> 300MHz MPU board, but the board looks some other difference with 200MHz board,
> so TSL can't works fine, so at first I'm trying to use MTD device with 200MHz
> board. But I can't use MTD until now.
> In now situation, /dev/mtd and /dev/mtdblock are normal directory and there are
> nothing under the directory.
>
> Please tell me how to use MTD on EP8260 under TSL!
>
> Here is my .config
> > # Memory Technology Devices (MTD)
> > CONFIG_MTD=y
> > CONFIG_MTD_DEBUG=y
> > CONFIG_MTD_DEBUG_VERBOSE=3
> > CONFIG_MTD_PARTITIONS=y
> > CONFIG_MTD_CHAR=y
> > CONFIG_MTD_BLOCK=y
> > CONFIG_FTL=y
>
> > # RAM/ROM/Flash chip drivers
> > CONFIG_MTD_CFI=y
> > CONFIG_MTD_JEDECPROBE=y
> > CONFIG_MTD_GEN_PROBE=y
> > CONFIG_MTD_CFI_AMDSTD=y	<-On board Flash memory looks AMD
> 				  chip but the print faint so I
> 				  can't read chip type
> > CONFIG_MTD_CFI_AMDSTD=y
> > CONFIG_MTD_OBSOLETE_CHIPS=y
> > CONFIG_MTD_AMDSTD=y
>
> > # Mapping drivers for chip access
> > CONFIG_MTD_PHYSMAP=y
> > CONFIG_MTD_PHYSMAP_START=FF800000	<-adjusting to 300MHz board
> > CONFIG_MTD_PHYSMAP_LEN=70000000	  I hope 200MHz board can work with
> 					  this parameter
> > CONFIG_MTD_PHYSMAP_BUSWIDTH=2
> other MTD parameters are not set
>
> Under this environment, MTD driver says
> > physmap flash device: 6ffffc at ff800000
> > CFI: Found no Physically mapped flash device at location zero
> > RPX Lite or CLLF flash device: 2000000 at fe000000
> > CFI: Found no RPX device at location zero
> > $Id: ftl.c,v 1.38 2001/09/23 21:15:12 dwmw2 Exp $
>
> This is first time to use MTD for me, so if you know good reference to use it,
> please tell me too.
> /usr/src/timesys/ep8260/2.4.7-timesys-3.1.180/kernel/Documents was not help me.
>
> Regards,
>
> Yutaka
>
>


_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/
OHMURA, Yutaka <ohmura@co-nss.co.jp>
  Nissin Systems co.,ltd.
  (Phone) +81-75-344-7950  (FAX) +81-75-344-7888
   Ayakoji, Horikawa street, Shimogyo-ku, KYOTO, JAPAN
_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/


** Sent via the linuxppc-embedded mail list. See http://lists.linuxppc.org/

RE: How to use EP8260 MTD device?

[Allen Curtis]

> By the way, TSL uses DEC register for timer, is this same in pure
> PPC-Linux?
> I could't find pure PPC-Linux 2.4.7 source code...

It is there, you have to learn how to use bitkeeper.

** Sent via the linuxppc-embedded mail list. See http://lists.linuxppc.org/

Re: How to use EP8260 MTD device?

[OHMURA Yutaka]

> > By the way, TSL uses DEC register for timer, is this same in pure
> > PPC-Linux?
> > I could't find pure PPC-Linux 2.4.7 source code...
>
> It is there, you have to learn how to use bitkeeper.
>

Hmmm,

I searched under http://www.kernel.org/pub/linux/kernel/ports/ppc/, but the
oldest patch for PPC was made for 2.4.10 kernel. Did I search wrong place?


** Sent via the linuxppc-embedded mail list. See http://lists.linuxppc.org/

Re: How to use EP8260 MTD device?

[Wolfgang Grandegger]

On 02/01/2003 07:37 AM OHMURA Yutaka wrote:
>> > By the way, TSL uses DEC register for timer, is this same in pure
>> > PPC-Linux?
>> > I could't find pure PPC-Linux 2.4.7 source code...
>>
>> It is there, you have to learn how to use bitkeeper.
>>
>
> Hmmm,
>
> I searched under http://www.kernel.org/pub/linux/kernel/ports/ppc/, but the
> oldest patch for PPC was made for 2.4.10 kernel. Did I search wrong place?

Check http://www.penguinppc.org/dev/kernel.shtml. The patches you
mentioned are against the linuxppc_2_4 tree but for a lot of embedded
boards the linuxppc_2_4_devel tree is the better choice.

Good luck,

Wolfgang.


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RE: How to use EP8260 MTD device?

[Allen Curtis]

> Check http://www.penguinppc.org/dev/kernel.shtml. The patches you
> mentioned are against the linuxppc_2_4 tree but for a lot of embedded
> boards the linuxppc_2_4_devel tree is the better choice.

That is right. I don't think there has been any active development on
linuxppc_2_4 for quite some time.


** Sent via the linuxppc-embedded mail list. See http://lists.linuxppc.org/

RE: How to use EP8260 MTD device?

[Steven Blakeslee]

It looks like you are using the MTD with the onboard FLASH.  I noticed you
have "CONFIG_MTD_PHYSMAP_BUSWIDTH=2", the FLASH on the ep8260 is a 64bit
bus, wouldn't that mean this should be a "CONFIG_MTD_PHYSMAP_BUSWIDTH=4".

Also, there are more configurations you can make, particularly for FLASH.
You should use make menuconfig and look at the other options.

Lastly, there is mention of MTD for the RPX LITE and CLLF boards.  These
have the same FLASH but a 32 bit bus, you may be able to modify this support
to include 64 bit for the ep8260.

-----Original Message-----
From: OHMURA Yutaka [mailto:ohmura@co-nss.co.jp]
Sent: Friday, January 31, 2003 8:40 AM
To: linuxppc-embedded@lists.linuxppc.org
Subject: Re: How to use EP8260 MTD device?



Hi,

In this ML, no one uses EP8260?
Or TSL(2.4.7 base)?

I changed my .config as follows, but still not work.
> # Memory Technology Devices (MTD)
> CONFIG_MTD=y
> CONFIG_MTD_DEBUG=y
> CONFIG_MTD_DEBUG_VERBOSE=3
> CONFIG_MTD_PARTITIONS=y
> CONFIG_MTD_CHAR=y
> CONFIG_MTD_BLOCK=y
> CONFIG_FTL=y
>
> # RAM/ROM/Flash chip drivers
> CONFIG_MTD_CFI=y
> CONFIG_MTD_GEN_PROBE=y
> CONFIG_MTD_CFI_AMDSTD=y
>
> # Mapping drivers for chip access
> CONFIG_MTD_PHYSMAP=y
> CONFIG_MTD_PHYSMAP_START=FF000000
> CONFIG_MTD_PHYSMAP_LEN=FFFFFF
> CONFIG_MTD_PHYSMAP_BUSWIDTH=2

By the way, TSL uses DEC register for timer, is this same in pure PPC-Linux?
I could't find pure PPC-Linux 2.4.7 source code...

Regards,

Yutaka

OHMURA Yutaka <ohmura@co-nss.co.jp> wrote:

>
> Hello,
>
> Now I'm trying to use Embedded Planet 8260 board Flash memory with TimeSys
> Linux 3.1(TSL). I have two type of this board. One has 200MHz clock, have
RTC,
> 64MB PSDRAM, 32MB LSDRAM and 16MB Flash ROM. The other has 300MHz clock,
> no RTC, 32MB PSDRAM and 8MB Flash ROM. My goal is use MTD device under TSL
with
> 300MHz MPU board, but the board looks some other difference with 200MHz
board,
> so TSL can't works fine, so at first I'm trying to use MTD device with
200MHz
> board. But I can't use MTD until now.
> In now situation, /dev/mtd and /dev/mtdblock are normal directory and
there are
> nothing under the directory.
>
> Please tell me how to use MTD on EP8260 under TSL!
>
> Here is my .config
> > # Memory Technology Devices (MTD)
> > CONFIG_MTD=y
> > CONFIG_MTD_DEBUG=y
> > CONFIG_MTD_DEBUG_VERBOSE=3
> > CONFIG_MTD_PARTITIONS=y
> > CONFIG_MTD_CHAR=y
> > CONFIG_MTD_BLOCK=y
> > CONFIG_FTL=y
>
> > # RAM/ROM/Flash chip drivers
> > CONFIG_MTD_CFI=y
> > CONFIG_MTD_JEDECPROBE=y
> > CONFIG_MTD_GEN_PROBE=y
> > CONFIG_MTD_CFI_AMDSTD=y	<-On board Flash memory looks AMD
> 				  chip but the print faint so I
> 				  can't read chip type
> > CONFIG_MTD_CFI_AMDSTD=y
> > CONFIG_MTD_OBSOLETE_CHIPS=y
> > CONFIG_MTD_AMDSTD=y
>
> > # Mapping drivers for chip access
> > CONFIG_MTD_PHYSMAP=y
> > CONFIG_MTD_PHYSMAP_START=FF800000	<-adjusting to 300MHz board
> > CONFIG_MTD_PHYSMAP_LEN=70000000	  I hope 200MHz board can work with
> 					  this parameter
> > CONFIG_MTD_PHYSMAP_BUSWIDTH=2
> other MTD parameters are not set
>
> Under this environment, MTD driver says
> > physmap flash device: 6ffffc at ff800000
> > CFI: Found no Physically mapped flash device at location zero
> > RPX Lite or CLLF flash device: 2000000 at fe000000
> > CFI: Found no RPX device at location zero
> > $Id: ftl.c,v 1.38 2001/09/23 21:15:12 dwmw2 Exp $
>
> This is first time to use MTD for me, so if you know good reference to use
it,
> please tell me too.
> /usr/src/timesys/ep8260/2.4.7-timesys-3.1.180/kernel/Documents was not
help me.
>
> Regards,
>
> Yutaka
>
>


_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/
OHMURA, Yutaka <ohmura@co-nss.co.jp>
  Nissin Systems co.,ltd.
  (Phone) +81-75-344-7950  (FAX) +81-75-344-7888
   Ayakoji, Horikawa street, Shimogyo-ku, KYOTO, JAPAN
_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/


** Sent via the linuxppc-embedded mail list. See http://lists.linuxppc.org/

Re: How to use EP8260 MTD device?

[OHMURA Yutaka]

Hi,

I got some info about EP8260, the 200MHz uses AM29LV320, and it's not supported
by Linux, so I'll tring to use it now.
And I'm tring to add set BCSR2 register GFWP bit which controll Flash write/not.

Steven Blakeslee <BlakesleeS@embeddedplanet.com> wrote:

>
> It looks like you are using the MTD with the onboard FLASH.  I noticed you
> have "CONFIG_MTD_PHYSMAP_BUSWIDTH=2", the FLASH on the ep8260 is a 64bit
> bus, wouldn't that mean this should be a "CONFIG_MTD_PHYSMAP_BUSWIDTH=4".
>
> Also, there are more configurations you can make, particularly for FLASH.
> You should use make menuconfig and look at the other options.
>
> Lastly, there is mention of MTD for the RPX LITE and CLLF boards.  These
> have the same FLASH but a 32 bit bus, you may be able to modify this support
> to include 64 bit for the ep8260.
>
> -----Original Message-----
> From: OHMURA Yutaka [mailto:ohmura@co-nss.co.jp]
> Sent: Friday, January 31, 2003 8:40 AM
> To: linuxppc-embedded@lists.linuxppc.org
> Subject: Re: How to use EP8260 MTD device?
>
>
>
> Hi,
>
> In this ML, no one uses EP8260?
> Or TSL(2.4.7 base)?
>
> I changed my .config as follows, but still not work.
> > # Memory Technology Devices (MTD)
> > CONFIG_MTD=y
> > CONFIG_MTD_DEBUG=y
> > CONFIG_MTD_DEBUG_VERBOSE=3
> > CONFIG_MTD_PARTITIONS=y
> > CONFIG_MTD_CHAR=y
> > CONFIG_MTD_BLOCK=y
> > CONFIG_FTL=y
> >
> > # RAM/ROM/Flash chip drivers
> > CONFIG_MTD_CFI=y
> > CONFIG_MTD_GEN_PROBE=y
> > CONFIG_MTD_CFI_AMDSTD=y
> >
> > # Mapping drivers for chip access
> > CONFIG_MTD_PHYSMAP=y
> > CONFIG_MTD_PHYSMAP_START=FF000000
> > CONFIG_MTD_PHYSMAP_LEN=FFFFFF
> > CONFIG_MTD_PHYSMAP_BUSWIDTH=2
>
> By the way, TSL uses DEC register for timer, is this same in pure PPC-Linux?
> I could't find pure PPC-Linux 2.4.7 source code...
>
> Regards,
>
> Yutaka
>
> OHMURA Yutaka <ohmura@co-nss.co.jp> wrote:
>
> >
> > Hello,
> >
> > Now I'm trying to use Embedded Planet 8260 board Flash memory with TimeSys
> > Linux 3.1(TSL). I have two type of this board. One has 200MHz clock, have
> RTC,
> > 64MB PSDRAM, 32MB LSDRAM and 16MB Flash ROM. The other has 300MHz clock,
> > no RTC, 32MB PSDRAM and 8MB Flash ROM. My goal is use MTD device under TSL
> with
> > 300MHz MPU board, but the board looks some other difference with 200MHz
> board,
> > so TSL can't works fine, so at first I'm trying to use MTD device with
> 200MHz
> > board. But I can't use MTD until now.
> > In now situation, /dev/mtd and /dev/mtdblock are normal directory and
> there are
> > nothing under the directory.
> >
> > Please tell me how to use MTD on EP8260 under TSL!
> >
> > Here is my .config
> > > # Memory Technology Devices (MTD)
> > > CONFIG_MTD=y
> > > CONFIG_MTD_DEBUG=y
> > > CONFIG_MTD_DEBUG_VERBOSE=3
> > > CONFIG_MTD_PARTITIONS=y
> > > CONFIG_MTD_CHAR=y
> > > CONFIG_MTD_BLOCK=y
> > > CONFIG_FTL=y
> >
> > > # RAM/ROM/Flash chip drivers
> > > CONFIG_MTD_CFI=y
> > > CONFIG_MTD_JEDECPROBE=y
> > > CONFIG_MTD_GEN_PROBE=y
> > > CONFIG_MTD_CFI_AMDSTD=y	<-On board Flash memory looks AMD
> > 				  chip but the print faint so I
> > 				  can't read chip type
> > > CONFIG_MTD_CFI_AMDSTD=y
> > > CONFIG_MTD_OBSOLETE_CHIPS=y
> > > CONFIG_MTD_AMDSTD=y
> >
> > > # Mapping drivers for chip access
> > > CONFIG_MTD_PHYSMAP=y
> > > CONFIG_MTD_PHYSMAP_START=FF800000	<-adjusting to 300MHz board
> > > CONFIG_MTD_PHYSMAP_LEN=70000000	  I hope 200MHz board can work with
> > 					  this parameter
> > > CONFIG_MTD_PHYSMAP_BUSWIDTH=2
> > other MTD parameters are not set
> >
> > Under this environment, MTD driver says
> > > physmap flash device: 6ffffc at ff800000
> > > CFI: Found no Physically mapped flash device at location zero
> > > RPX Lite or CLLF flash device: 2000000 at fe000000
> > > CFI: Found no RPX device at location zero
> > > $Id: ftl.c,v 1.38 2001/09/23 21:15:12 dwmw2 Exp $
> >
> > This is first time to use MTD for me, so if you know good reference to use
> it,
> > please tell me too.
> > /usr/src/timesys/ep8260/2.4.7-timesys-3.1.180/kernel/Documents was not
> help me.
> >
> > Regards,
> >
> > Yutaka
> >
> >
>
>
> _/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/
> OHMURA, Yutaka <ohmura@co-nss.co.jp>
>   Nissin Systems co.,ltd.
>   (Phone) +81-75-344-7950  (FAX) +81-75-344-7888
>    Ayakoji, Horikawa street, Shimogyo-ku, KYOTO, JAPAN
> _/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/
>
>
>


_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/
OHMURA, Yutaka <ohmura@co-nss.co.jp>
  Nissin Systems co.,ltd.
  (Phone) +81-75-344-7950  (FAX) +81-75-344-7888
   Ayakoji, Horikawa street, Shimogyo-ku, KYOTO, JAPAN
_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/


** Sent via the linuxppc-embedded mail list. See http://lists.linuxppc.org/

Re: How to use EP8260 MTD device?

[OHMURA Yutaka]

A bit info (and memo for me ^^)

EP8260 using four 16 bits flash ROM (64bit width), and I tried to send CFI
query command. But Linux MTD driver looks not think like this design.
I hope It can use as same as two 16 bits flash ROM (32bit width) or one
16 bits flash ROM (16bit width).

My first try, do "*(volatile unsigned int *)(0xFF000000 + 0x55 * 8) = 0x0098;",
after that I got data "Q" with "data = *(volatile unsigned int *)(0xFF000000 +
0x10 * 8);" same as "R" and "Y".
But I could't got "Q" when I did "writel(0x0098, 0xFF000000 + 0x55 * 8);",
I wondered, finally I got "Q" when I did "writel(0x9800, 0xFF000000 + 0x55
* 8);", so the "writel" wrapper must be adjust EP8260 (or for big endian
MPUs)....

OHMURA Yutaka <ohmura@co-nss.co.jp> wrote:

>
> Hi,
>
> I got some info about EP8260, the 200MHz uses AM29LV320, and it's not supported
> by Linux, so I'll tring to use it now.
> And I'm tring to add set BCSR2 register GFWP bit which controll Flash write/not.
>
> Steven Blakeslee <BlakesleeS@embeddedplanet.com> wrote:
>
> >
> > It looks like you are using the MTD with the onboard FLASH.  I noticed you
> > have "CONFIG_MTD_PHYSMAP_BUSWIDTH=2", the FLASH on the ep8260 is a 64bit
> > bus, wouldn't that mean this should be a "CONFIG_MTD_PHYSMAP_BUSWIDTH=4".
> >
> > Also, there are more configurations you can make, particularly for FLASH.
> > You should use make menuconfig and look at the other options.
> >
> > Lastly, there is mention of MTD for the RPX LITE and CLLF boards.  These
> > have the same FLASH but a 32 bit bus, you may be able to modify this support
> > to include 64 bit for the ep8260.
> >
> > -----Original Message-----
> > From: OHMURA Yutaka [mailto:ohmura@co-nss.co.jp]
> > Sent: Friday, January 31, 2003 8:40 AM
> > To: linuxppc-embedded@lists.linuxppc.org
> > Subject: Re: How to use EP8260 MTD device?
> >
> >
> >
> > Hi,
> >
> > In this ML, no one uses EP8260?
> > Or TSL(2.4.7 base)?
> >
> > I changed my .config as follows, but still not work.
> > > # Memory Technology Devices (MTD)
> > > CONFIG_MTD=y
> > > CONFIG_MTD_DEBUG=y
> > > CONFIG_MTD_DEBUG_VERBOSE=3
> > > CONFIG_MTD_PARTITIONS=y
> > > CONFIG_MTD_CHAR=y
> > > CONFIG_MTD_BLOCK=y
> > > CONFIG_FTL=y
> > >
> > > # RAM/ROM/Flash chip drivers
> > > CONFIG_MTD_CFI=y
> > > CONFIG_MTD_GEN_PROBE=y
> > > CONFIG_MTD_CFI_AMDSTD=y
> > >
> > > # Mapping drivers for chip access
> > > CONFIG_MTD_PHYSMAP=y
> > > CONFIG_MTD_PHYSMAP_START=FF000000
> > > CONFIG_MTD_PHYSMAP_LEN=FFFFFF
> > > CONFIG_MTD_PHYSMAP_BUSWIDTH=2
> >
> > By the way, TSL uses DEC register for timer, is this same in pure PPC-Linux?
> > I could't find pure PPC-Linux 2.4.7 source code...
> >
> > Regards,
> >
> > Yutaka
> >
> > OHMURA Yutaka <ohmura@co-nss.co.jp> wrote:
> >
> > >
> > > Hello,
> > >
> > > Now I'm trying to use Embedded Planet 8260 board Flash memory with TimeSys
> > > Linux 3.1(TSL). I have two type of this board. One has 200MHz clock, have
> > RTC,
> > > 64MB PSDRAM, 32MB LSDRAM and 16MB Flash ROM. The other has 300MHz clock,
> > > no RTC, 32MB PSDRAM and 8MB Flash ROM. My goal is use MTD device under TSL
> > with
> > > 300MHz MPU board, but the board looks some other difference with 200MHz
> > board,
> > > so TSL can't works fine, so at first I'm trying to use MTD device with
> > 200MHz
> > > board. But I can't use MTD until now.
> > > In now situation, /dev/mtd and /dev/mtdblock are normal directory and
> > there are
> > > nothing under the directory.
> > >
> > > Please tell me how to use MTD on EP8260 under TSL!
> > >
> > > Here is my .config
> > > > # Memory Technology Devices (MTD)
> > > > CONFIG_MTD=y
> > > > CONFIG_MTD_DEBUG=y
> > > > CONFIG_MTD_DEBUG_VERBOSE=3
> > > > CONFIG_MTD_PARTITIONS=y
> > > > CONFIG_MTD_CHAR=y
> > > > CONFIG_MTD_BLOCK=y
> > > > CONFIG_FTL=y
> > >
> > > > # RAM/ROM/Flash chip drivers
> > > > CONFIG_MTD_CFI=y
> > > > CONFIG_MTD_JEDECPROBE=y
> > > > CONFIG_MTD_GEN_PROBE=y
> > > > CONFIG_MTD_CFI_AMDSTD=y	<-On board Flash memory looks AMD
> > > 				  chip but the print faint so I
> > > 				  can't read chip type
> > > > CONFIG_MTD_CFI_AMDSTD=y
> > > > CONFIG_MTD_OBSOLETE_CHIPS=y
> > > > CONFIG_MTD_AMDSTD=y
> > >
> > > > # Mapping drivers for chip access
> > > > CONFIG_MTD_PHYSMAP=y
> > > > CONFIG_MTD_PHYSMAP_START=FF800000	<-adjusting to 300MHz board
> > > > CONFIG_MTD_PHYSMAP_LEN=70000000	  I hope 200MHz board can work with
> > > 					  this parameter
> > > > CONFIG_MTD_PHYSMAP_BUSWIDTH=2
> > > other MTD parameters are not set
> > >
> > > Under this environment, MTD driver says
> > > > physmap flash device: 6ffffc at ff800000
> > > > CFI: Found no Physically mapped flash device at location zero
> > > > RPX Lite or CLLF flash device: 2000000 at fe000000
> > > > CFI: Found no RPX device at location zero
> > > > $Id: ftl.c,v 1.38 2001/09/23 21:15:12 dwmw2 Exp $
> > >
> > > This is first time to use MTD for me, so if you know good reference to use
> > it,
> > > please tell me too.
> > > /usr/src/timesys/ep8260/2.4.7-timesys-3.1.180/kernel/Documents was not
> > help me.
> > >
> > > Regards,
> > >
> > > Yutaka
> > >
> > >
> >
> >
> > _/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/
> > OHMURA, Yutaka <ohmura@co-nss.co.jp>
> >   Nissin Systems co.,ltd.
> >   (Phone) +81-75-344-7950  (FAX) +81-75-344-7888
> >    Ayakoji, Horikawa street, Shimogyo-ku, KYOTO, JAPAN
> > _/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/
> >
> >
> >
>
>
> _/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/
> OHMURA, Yutaka <ohmura@co-nss.co.jp>
>   Nissin Systems co.,ltd.
>   (Phone) +81-75-344-7950  (FAX) +81-75-344-7888
>    Ayakoji, Horikawa street, Shimogyo-ku, KYOTO, JAPAN
> _/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/
>
>
>


_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/
OHMURA, Yutaka <ohmura@co-nss.co.jp>
  Nissin Systems co.,ltd.
  (Phone) +81-75-344-7950  (FAX) +81-75-344-7888
   Ayakoji, Horikawa street, Shimogyo-ku, KYOTO, JAPAN
_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/


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