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AW: [microblaze-uclinux] Flash memory in microblaze Uclinux

To: <microblaze-uclinux@xxxxxxxxxxxxxx>
Subject: AW: [microblaze-uclinux] Flash memory in microblaze Uclinux
From: "Schunke Jan-Hendrik" <Schunke@xxxxxxxxxxxxxxxxxxxx>
Date: Fri, 18 Mar 2005 09:13:11 +0100
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Thread-topic: [microblaze-uclinux] Flash memory in microblaze Uclinux
Ok sky,

As far as I can see from a quick look at the datasheet for AMD29LV320 like flash programming in x8 Mode is quite different from x16 Mode. Looks like you have to write to a buffer first.
I think you have to take a closer look at the datasheet and implement the programming sequence yourself.
You can take the provided script as a starting point. 

The EDK itself provides a flash programing tool with source code under
%EDK%/data/xmd/flashwriter/src but that works only for the following modes:

Embedded System Tools Reference Manual Page: 161

Supported Flash Configurations
Single 16-bit device forming a 16-bit data bus
Paired 8-bit devices forming a 16-bit data bus
Single 32-bit device forming a 32-bit data bus
Paired 16-bit devices forming a 32-bit data bus
Four 8-bit devices forming a 32-bit data bus

Sorry, I do not have the time to give you further advice but I will try to answer any question that comes up on your way.

Jan

> -----Ursprüngliche Nachricht-----
> Von: owner-microblaze-uclinux@itee.uq.edu.au 
> [mailto:owner-microblaze-uclinux@itee.uq.edu.au] Im Auftrag 
> von sky sky
> Gesendet: Donnerstag, 17. März 2005 12:41
> An: microblaze-uclinux@itee.uq.edu.au
> Betreff: Re: [microblaze-uclinux] Flash memory in microblaze Uclinux
> 
> 
> hi,
> thx for ur help, but I have no idea now to modify the script 
> for 8 bits mode, can you show me how to do so?
> 
> thx
> SKY
> 
> 
> On Wed, 16 Mar 2005 13:35:28 +0100, Schunke Jan-Hendrik 
> <Schunke@shf-communication.de> wrote:
> > Hi Sky,
> > 
> > You have to "source" the xmdflash.tcl script. After you started xmd 
> > enter:
> > 
> > XMD% source /path_to_script/xmdflash.tcl
> > 
> > Press "fhelp" to get some information about the provided 
> commands. Set 
> > the base address of your flash memory controller (mine was 
> > 0x81800000):
> > 
> > XMD% base 0x81800000
> > 
> > Then try to earse the whole chip
> > 
> > XMD% face
> > 
> > Then you can try to write:
> > 
> > %XMD fmwr 0x81800000 0xdeadc0de
> > 
> > Then try to read
> > 
> > %XMD fmrd 0x81800000
> > 
> > You might have to change the defines at the start of the 
> script for 8 
> > Bit mode:
> > 
> > -- snip --
> > 
> > # = 555 shifted by  2 bit because lower 2 address lines are not 
> > connected (Word Access Mode) set FLASH_COMMAND_ADDR_555 [expr 
> > $FLASH_BASEADDR + 0x01554] # = 2AA shifted by  2 bit 
> because lower 2 
> > address lines are not connected (Word Access Mode) set 
> FLASH_COMMAND_ADDR_2AA [expr $FLASH_BASEADDR + 0x0aa8]
> > set FLASH_COMMAND_AA               0x00AA00AA
> > set FLASH_COMMAND_55               0x00550055
> > set FLASH_COMMAND_READ_RESET       0x00F000F0
> > set FLASH_COMMAND_ERASE            0x00800080
> > set FLASH_COMMAND_AUTO_CHIP_ERASE  0x00100010
> > set FLASH_COMMAND_AUTO_BLOCK_ERASE 0x00300030
> > set FLASH_COMMAND_AUTO_PROGRAM     0x00A000A0
> > set FLASH_DQ7                      0x00800080
> > set FLASH_DQ5                      0x00200020
> > 
> > -- snip --
> > 
> > Hope that helps
> > 
> > Jan
> > 
> > > -----Ursprüngliche Nachricht-----
> > > Von: owner-microblaze-uclinux@itee.uq.edu.au
> > > [mailto:owner-microblaze-uclinux@itee.uq.edu.au] Im 
> Auftrag von sky 
> > > sky
> > > Gesendet: Dienstag, 15. März 2005 20:20
> > > An: microblaze-uclinux@itee.uq.edu.au
> > > Betreff: Re: [microblaze-uclinux] Flash memory in 
> microblaze Uclinux
> > >
> > >
> > > hi jan,
> > >
> > > Yeah, the DQ15  will select LSB in x8 mode. How can I use the two 
> > > file that u have gave me to check the flash chip, in xmd?
> > >
> > > SKY
> > >
> > >
> > > On Tue, 15 Mar 2005 09:21:31 +0100, Schunke Jan-Hendrik 
> > > <Schunke@shf-communication.de> wrote:
> > > > Hi Sky,
> > > >
> > > > A long time ago I wrote some tcl tools to write to flash
> > > using xmd. If
> > > > you want to verify your flash is working it might be a 
> good idea 
> > > > to check out
> > > >
> > > >
> > > 
> http://www.itee.uq.edu.au/~jwilliams/mblaze-uclinux/Downloads/_files
> > > /f
> > > > lashtools.tar.gz
> > > >
> > > > This is for AMD like flashes but I guess the M29W320 DT 
> should be 
> > > > compatible. For AMD flash D15 is used as an extra address
> > > (A-1, LSB)
> > > > in x8 mode. Is that connected right?
> > > >
> > > > You might need to change the above flashtools because of x8
> > > mode but
> > > > that should be quite simple.
> > > >
> > > > Jan
> > > >
> > > > > -----Ursprüngliche Nachricht-----
> > > > > Von: owner-microblaze-uclinux@itee.uq.edu.au
> > > > > [mailto:owner-microblaze-uclinux@itee.uq.edu.au] Im
> > > Auftrag von sky
> > > > > tam
> > > > > Gesendet: Dienstag, 15. März 2005 05:56
> > > > > An: microblaze-uclinux@itee.uq.edu.au
> > > > > Betreff: Re: [microblaze-uclinux] Flash memory in
> > > microblaze Uclinux
> > > > >
> > > > >
> > > > > Hi Steve,
> > > > >
> > > > > The flash that I am using is from ST, it is M29W320DT, I have 
> > > > > connect it as x8. How can u check whether the flash is
> > > working. is
> > > > > there any read/write method to check it? can u tell me
> > > which files
> > > > > in MBvanilia are need to modify for flash.
> > > > >
> > > > > thx
> > > > > SKY
> > > > >
> > > > >
> > > > > On Mon, 14 Mar 2005 09:34:25 -0800 (PST), Steve Sanders 
> > > > > <akasanders@yahoo.com> wrote:
> > > > > >
> > > > > > Can you provide some detail about the type of flash
> > > you're using
> > > > > > (e.g., AMD, Intel, etc.) and how it is connected (e.g., x8,
> > > > > x16, x32)?
> > > > > > Just went through this yesterday for a Virtex 4 board
> > > and got it
> > > > > > working OK...  You may need to change the bus width 
> expected 
> > > > > > in the MBVanilla flash probe to match your board.  We also 
> > > > > > removed the "JEDEC" configuration option(s) from the OS 
> > > > > > config.  Wasn't
> > > > > needed for
> > > > > > probing Intel Strataflash.
> > > > > >
> > > > > > Steve
> > > > > >
> > > > > > --- sky tam <waimingsky1@gmail.com> wrote:
> > > > > > > Hi,
> > > > > > >
> > > > > > > I am using uClinux on microblaze, I am trying to 
> add a flash 
> > > > > > > chip memory to my system to make it portable from 
> everytime
> > > > > downloading
> > > > > > > kernel into my system. From john website, the 
> flash part is 
> > > > > > > still underconstruction, so is there anyone successfully 
> > > > > > > integrated a flash into your system?
> > > > > > >
> > > > > > > I tried to read some value out from my flash chip, by
> > > using "mrd
> > > > > > > 0xff000000" in XMD (0xff000000 is my flash base
> > > address) , there
> > > > > > > were FFFFFFFF comming out. is it alright? When I plot a
> > > > > uClinux into
> > > > > > > my system, something like this:
> > > > > > >
> > > > > > > MBVanilla flash probe(0xff000000,8388608,4): 800000
> > > at ff000000
> > > > > > > CFI: Found no Flash device at location zero
> > > > > > > Search for id:(ffff ffff) interleave(2) type(2) 
> Search for 
> > > > > > > id:(ffff ffff) interleave(2) type(2) Search for id:(ffff 
> > > > > > > ffff) interleave(2) type(2) Search for id:(ff ff) 
> > > > > > > interleave(2) type(1) Search for id:(ff ff) interleave(2) 
> > > > > > > type(1) Search for id:(ff ff) interleave(2) type(1)
> > > > > > > Search for id:(ffff ffff) interleave(4) type(2)
> > > > > > > Search for id:(ffff ffff) interleave(4) type(2)
> > > > > > > Search for id:(ffff ffff) interleave(4) type(2)
> > > > > > > Search for id:(ff ff) interleave(4) type(1)
> > > > > > > Search for id:(ff ff) interleave(4) type(1)
> > > > > > > Search for id:(ff ff) interleave(4) type(1)
> > > > > > > JEDEC: Found no Flash device at location zero
> > > > > > > MBVanilla ram probe(0x80176754,634880,4): 9b000 at
> > > > > 80176754 Creating
> > > > > > > 1 MTD partitions on "RAM": 0x00000000-0x0009b000 : "Romfs"
> > > > > > >
> > > > > > > does it mean, found flash or not??
> > > > > > > how can I check the flash chip avaliability under 
> uClinux??
> > > > > > >
> > > > > > > thx
> > > > > > > SKY
> > > > > > > ___________________________
> > > > > > > microblaze-uclinux mailing list 
> > > > > > > microblaze-uclinux@itee.uq.edu.au Project Home Page : 
> > > > > > > http://www.itee.uq.edu.au/~jwilliams/mblaze-uclinux
> > > > > > > Mailing List Archive : 
> > > > > > > http://www.itee.uq.edu.au/~listarch/microblaze-uclinux/
> > > > > > >
> > > > > > >
> > > > > > ___________________________
> > > > > > microblaze-uclinux mailing list
> > > microblaze-uclinux@itee.uq.edu.au
> > > > > > Project Home Page :
> > > > > http://www.itee.uq.edu.au/> ~jwilliams/mblaze-uclinux
> > > > > > Mailing
> > > > > List Archive : 
> > > > > http://www.itee.uq.edu.au/~listarch/microblaze-uclinux/
> > > > > >
> > > > > >
> > > > > ___________________________
> > > > > microblaze-uclinux mailing list 
> > > > > microblaze-uclinux@itee.uq.edu.au Project Home Page : 
> > > > > http://www.itee.uq.edu.au/> ~jwilliams/mblaze-uclinux Mailing
> > > > > List Archive :
> > > > > http://www.itee.uq.edu.au/~listarch/microblaze-uclinux/
> > > > >
> > > > >
> > > > >
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> > > > ___________________________
> > > > microblaze-uclinux mailing list 
> microblaze-uclinux@itee.uq.edu.au
> > > > Project Home Page :
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> > > >
> > >
> > > ___________________________
> > > microblaze-uclinux mailing list microblaze-uclinux@itee.uq.edu.au
> > > Project Home Page :
> > > http://www.itee.uq.edu.au/> ~jwilliams/mblaze-uclinux
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> > ___________________________
> > microblaze-uclinux mailing list
> > microblaze-uclinux@itee.uq.edu.au
> > Project Home Page : 
> http://www.itee.uq.edu.au/> ~jwilliams/mblaze-uclinux
> > Mailing 
> List Archive : 
> http://www.itee.uq.edu.au/~listarch/microblaze-uclinux/
> > 
> >
> 
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