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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: Mon, 21 Mar 2005 17:06:25 +0100
Reply-to: microblaze-uclinux@xxxxxxxxxxxxxx
Sender: owner-microblaze-uclinux@xxxxxxxxxxxxxx
Thread-index: AcUuJ7NhljHQvqD8TS6f0lvp1o6IcgABhYpA
Thread-topic: [microblaze-uclinux] Flash memory in microblaze Uclinux
Hi Sky,

> I can erase the flash in less then a second time, is it 
> normal, or too fast? 

Depends on flash size but sounds to fast.

> and after I write any thing in the 
> flash, only FFFFFFFF can be read, what should I set for the 
> base address, should it follow the C_BASE_ADDR or 
> MEN0_BASE_ADDRESS from microblaze?
> 
> SKY
> 

It should be the base of the memory range that you connect your flash to:


BEGIN opb_emc
 ...
 PARAMETER C_BASEADDR      = 0xFFFF0000
 PARAMETER C_HIGHADDR      = 0xFFFF01FF
 PARAMETER C_MEM0_BASEADDR = 0xFFE00000
 PARAMETER C_MEM0_HIGHADDR = 0xFFEFFFFF
 PARAMETER C_MEM1_BASEADDR = 0xFF000000
 PARAMETER C_MEM1_HIGHADDR = 0xFF7FFFFF 
 ...

If you have connected your flash to MEM0 than use the C_MEM0_BASEADDR address (that is where mbvanilla and suzaku have there flash, if I remember right). From your earilier mail I guess your base is 0xff000000. Please post your mhs or at least part of it.

Do you have a scope to check your Datalines? Did you check endian issues (big oe little)? 

Jan

> 
> On Mon, 21 Mar 2005 09:44:54 +0100, Schunke Jan-Hendrik 
> <Schunke@shf-communication.de> wrote:
> > 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
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> > > > > > > > > > >
> > > > > > > > > > ___________________________ 
> microblaze-uclinux mailing 
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> > > > > > > > > ___________________________
> > > > > > > > > microblaze-uclinux mailing list 
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> > > > > > > ___________________________
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> > > > > ___________________________
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