Re: [Simpad-general] Re-partitioning flash

[Michael 'M. L. <mi...@tm...>]

Am Samstag, den 25.06.2005, 09:36 -0400 schrieb Albert Rybalkin:
> Hello, 
> 
> I'm using hh bootloader on my SL4 (the version compiled for
> 0.9.0-rc1 opensimpad build). It has the following partitions
> defined in flash: 
> 
> 0x00000000-0x00040000 : "bootldr"
> 0x00040000-0x01800000 : "root"
> 0x01800000-0x02000000 : "home" 
> 
> I would like to get rid of /home partition and make root partition
> occupy remaining space. I'm aware that I need to pass static partition
> definition to the kernel. But do I need to change anything in the
> bootloader? How does bootloader finds partitions in flash? Does it
> just scans all flash or it has some parameters which statically
> define partitions? Is it safe to assume that I can just drop
> to boot> prompt, delete root and home partitions, then create one
> large root partition, erase it and copy jffs2 image to it?

In general, see linux/drivers/mtd/maps/sa1100.c

bootldr passes in flash geometry parameters via kernel CMDline. You need
to build a new bootldr if you want to change its idea of the geometry on
that device or disable setting mtd params via cmdline in the kernel and
adapt sa1100.c to use a static mapping that pleases you.

-- 
Regards,

Mickey.
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Dipl.-Inf. Michael 'Mickey' Lauer <mi...@tm...>
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