On Thu, 9 Mar 2000, �麴�� wrote:
> Hello...
>
> I have a ebsa285 with only boot flash 512K.
>
> I made a linux-arm 2.2.12 kernel(footbridge) and other tool chains
> including bios-1.06 and it's patch(serial loading and flash loading)
I'll assume you used my patch to bios-1.06 which is also available as
ftp://ftp.netwinder.org/users/n/nico/ebsa285-bios-1.06.diff2.
> Now my problems are....
>
> 1) My kernel is 420K and bios is 13k.
> How can I flash write the kernel with bios at 512k flash(0x41000000 -
> 0x4107ffff) to boot from flash ?
> I think it's some what different LOAD_ADDR and MAGIC_??
Here's what you should do:
- You should read and understand the instructions at the top of
bios/drivers/char/flash.c. Modify and recompile your kernel accordingly.
If you store the BIOS at 0x41000000, you could store the kernel zImage at
0x41008000 which leaves you 480k for its size.
- Enable flash booting option in bios/include/bios/config.h.
- Change link address at the top of bios/Makefile for TEXTADDR=0x41000080
- Build the BIOS.
- Make up your flash image like this:
dd of=flash.bin if=bios
dd of=flash.bin if=zImage bs=1k seek=32
You then can burn the flash.bin file on your flash chip.
If the bios stalls half way through, you may try commenting out the
isa_init() call in bios/init/main.c. At least it helped me since I don't
have any ISA bridge.
> 2) To load kernel using 3c59x and tftp and To load kernel using serial
> ymodem, Could someone give me a simple direction where and how can I use
> the netdev as bootdev?
The 3C59x bios driver is not as complete as the one in the kernel. If you
have a 3C90x card, you're out of luck.
> And how can I download the kernel using ymodem in minicom ?
Simply select the "serial port" boot method, and when prompted, send your
zImage over with minicom's upload/y-modem function.
Nicolas
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