[U-Boot-Users] A problem with u-boot on smdk2410 used nand flash(smart media card)

Ada Wu musicguitar17 at gmail.com
Fri Dec 24 19:46:20 CET 2004

Thanks for you suggestion. 
I created a new header file for some definitions of nand flash.
That might work, but there is a compile error that i don't know how to solve it.
When compiled(make) to the last "u-boot" binary file, then that can
not find `__readwrite_bug'.

The error message is :

/usr/local/arm/2.95.3/lib/gcc-lib/arm-linux/2.95.3 -lgcc --end-group \
                -Map u-boot.map -o u-boot
common/libcommon.a(cmd_nand.o): In function `nand_write_page':
/home/music/u-boot/u-boot-1.1.1/common/cmd_nand.c:1066: undefined
reference to `__readwrite_bug'
/home/music/u-boot/u-boot-1.1.1/common/cmd_nand.c:1080: undefined
reference to `__readwrite_bug'
make: *** [u-boot] Error 1

I think that problem comes from /asm-arm/io.h
And I can not find any function about "__readwrite_bug()". so I can't slove it.
My u-boot version is 1.1.1.
What can I do for this error?

On Tue, 21 Dec 2004 10:25:39 +0100, Wolfgang Denk <wd at denx.de> wrote:
> In message <70882d0604122021091dc76868 at mail.gmail.com> you wrote:
> >
> > I have a problem with u-boot on smdk2410, i used a nand flash(smart media card).
> > I had make an "u-boot.bin " image, and download with jtag to the nand
> > flash. But, that was no any out put signal on the screen.
> What makes you think that this should work?
> > Where can I find the header file for smdk2410 with nand flash?
> Create one.
> > or How can i find make such definition for nand flash? and where
> > should i add such definition?
> Have a look at what other boards with NAND support are doing, try  to
> understand this, and then copy and adapt these settings.
> For a start, I recommend to RTFM (see doc/README.nand).
> Best regards,
> Wolfgang Denk
> --
> Software Engineering:  Embedded and Realtime Systems,  Embedded Linux
> Phone: (+49)-8142-66989-10 Fax: (+49)-8142-66989-80 Email: wd at denx.de
> It is necessary to have purpose.
>        -- Alice #1, "I, Mudd", stardate 4513.3

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