[U-Boot] [PATCH v3] Add a CBFS driver and commands to u-boot

Wolfgang Denk wd at denx.de
Wed Dec 7 09:03:20 CET 2011


Dear Gabe Black,

In message <1323214584-11635-1-git-send-email-gabeblack at chromium.org> you wrote:
> Coreboot uses a very simple "file system" called CBFS to keep track of and
> allow access to multiple "files" in a ROM image. This change adds CBFS
> support and some commands to use it to u-boot. These commands are:
> 
> cbfsinit - Initialize CBFS support and pull all metadata into RAM. The end
> of the ROM is an optional parameter which defaults to the standard
> 0xffffffff and can be used to support multiple CBFSes in a system. The last
> one set up with cbfsinit is the one that will be used.
> 
> cbfsinfo - Print information from the CBFS header.
> 
> cbfsls - Print out the size, type, and name of all the files in the current
> CBFS. Recognized types are translated into symbolic names.
> 
> cbfsload - Load a file from CBFS into memory. Like the similar command for
> fat filesystems, you can optionally provide a maximum size.
> 
> Also, if u-boot needs something out of CBFS very early before the heap is
> configured, it won't be able to use the normal CBFS support which caches
> some information in memory it allocates from the heap. This change adds a
> new cbfs_file_find_uncached function which searchs a CBFS instance without
> touching the heap.
> 
> Support for CBFS is compiled in when the CONFIG_CMD_CBFS option is
> specified.
> 
> Signed-off-by: Gabe Black <gabeblack at chromium.org>

See previous message.

Best regards,

Wolfgang Denk

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