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

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Subject: AW: [microblaze-uclinux] Flash memory in microblaze Uclinux
From: "Schunke Jan-Hendrik" <Schunke@xxxxxxxxxxxxxxxxxxxx>
Date: Mon, 21 Mar 2005 09:44:54 +0100
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Thread-index: AcUt8O/T2nciO8jASB2bCpOrfvHBWgAALk7Q
Thread-topic: [microblaze-uclinux] Flash memory in microblaze Uclinux
Hi Sky,

The commands are writeen on the lower and upper byte:
set FLASH_COMMAND_AA               0x00AA00AA

What happens when you try to write to the flash? Remember that you can only turn 1 into 0 when writing to flash.
Please try to earse the flash and try to write 0x1234cafe to the first memory location of the flash and tell me what you read back.

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: Montag, 21. März 2005 08:46
> An: microblaze-uclinux@itee.uq.edu.au
> Betreff: Re: [microblaze-uclinux] Flash memory in microblaze Uclinux
> 
> 
> Hi,
> I have change my flash memory to x16 mode, do u have some 
> idea , what can I do to change the script so that I can use 
> it to write/erase the flash? The scripts are for x32 mode flash right?
> 
> sky
> 
> 
> On Fri, 18 Mar 2005 09:13:11 +0100, Schunke Jan-Hendrik 
> <Schunke@shf-communication.de> wrote:
> > 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 : 
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> > > > > > >
> > > > > > >
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> > > > > >
> > > > > > ___________________________
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> > > > >
> > > > > ___________________________
> > > > > microblaze-uclinux mailing list 
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> > > > ___________________________
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> > > >
> > >
> > > ___________________________
> > > microblaze-uclinux mailing list microblaze-uclinux@itee.uq.edu.au
> > > Project Home Page :
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