From: tglx@linutronix.de (Thomas Gleixner)
To: Gurhan Hatipoglu <gurhan@hatipoglu.biz>, linux-mtd@lists.infradead.org
Subject: Re: Fwd: NAND Flash Problem.
Date: Thu, 20 May 2004 20:46:10 +0200 [thread overview]
Message-ID: <200405202046.10681.tglx@linutronix.de> (raw)
In-Reply-To: <200405201538.40677.gurhan@hatipoglu.biz>
On Thursday 20 May 2004 14:38, Gurhan Hatipoglu wrote:
> Hello sir/madam;
>
> I forwarded the message attached, by the advice of CVS group. Please inform
> me about the problem forwarded.
CVS is no group. It's a read only mailing list which keeps you informed of
changes in the CVS.
> I'm working on Hyundai GMS30C7201 board, using ARM Linux V.2.4.18 Rmk 3.
Is this the kernel from Hynix ? Use the reworked one available from my
homepage.
> In addition to NOR Flash, we mounted KM29U64000T 64Kbit NAND flash on the
> board to use as a disk, I changed sample VIA board driver according to the
> directions given in the Document directory
Which version of MTD do you use ? The one in the kernel source ?
Use latest MTD CVS code, as everything else does not properly support NAND.
> and by referencing addresses in
> hardware.h (NAND_BASE 0xf2000000, physical address is 0x08000000).
> When I boot the system, VM error is appearing, as below and system is
> crashing. When I test ioremap for physical address 0x0800000, system is
> giving no nand flash found message.
The pyhsical address must be converted to a virtual adress by ioremap. Get the
physical address through which the NAND chip can be accessed. In your driver
use:
nand_virt = ioremap (nand_phys, SZ_1K);
nand_virt must be stored in the IO_ADDR_R and IO_ADDR_W members of the nand
chip structure.
> Function entered at [<c0093284>] from [<c00952b0>]
> Function entered at [<c0095278>] from [<c000ee60>]
> r8 = C00C2B44 r7 = C00C6C20 r6 = C01342E8 r5 = C00E6120
> r4 = C0134260
Such a backtrace is worthless, as I dont know anything of your kernel. Decode
it with ksymoops. Read linux/Documentation/oops-tracing.txt
--
Thomas
________________________________________________________________________
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________________________________________________________________________
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mail: tglx@linutronix.de
prev parent reply other threads:[~2004-05-20 18:51 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2004-05-20 12:38 Fwd: NAND Flash Problem Gurhan Hatipoglu
2004-05-20 18:46 ` Thomas Gleixner [this message]
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