[U-Boot-Users] Re: FT u-boot shim
wd at denx.de
Thu Apr 27 21:40:55 CEST 2006
In message <D358E665-60E4-48C0-82FD-7A1C16DAF00C at kernel.crashing.org> you wrote:
> The problem is that there are somethings that u-boot knows that needs
> to go into the blob (memory size, boot args, initrd info,
> frequencies, etc.)
Yes. Can we append auch variable data to the fixed part of the dts?
> How would we distinguish the bootm command that takes a blob versus
> the ones we have today?
Arg count. For example:
OLD: bootm <kernel_addr>
or bootm <kernel_addr> <ramdisk_addr>
NEW: bootm <kernel_addr> - <dts_addr>
or bootm <kernel_addr> <ramdisk_addr> <dts_addr>
> As stated before, the main issue is doing some runtime fix ups to the
> blob before its handed to the kernel.
Let's do exactly this: runtime fix ups.
> We could hand bootm a memory location with a blob and do the fix ups
> at runtime, we would still have some coupling between the blob and u-
> boot build. At least the blob wouldn't be built into u-boot.
Software Engineering: Embedded and Realtime Systems, Embedded Linux
Phone: (+49)-8142-66989-10 Fax: (+49)-8142-66989-80 Email: wd at denx.de
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