When building a FIT with external data (-E), U-Boot proper may require
absolute positioning for executing the external firmware. To acheive this
use the (-p) switch, which will replace the amended 'data-offset' with
'data-position' indicating the absolute position of external data.
It is considered an error if the requested absolute position overlaps with the
initial data required for the compact FIT.
Signed-off-by: Teddy Reed <teddy.reed@gmail.com>
Some build systems want to be quiet unless there is a problem. At present
mkimage displays quite a bit of information when generating a FIT file. Add
a '-q' flag to silence this.
Signed-off-by: Simon Glass <sjg@chromium.org>
Acked-by: Joe Hershberger <joe.hershberger@ni.com>
Commit 7a439cadcf broke generation of SPL
loadable FIT images (CONFIG_SPL_LOAD_FIT).
Fix it by removing the unnecessary storage of expected image type. This was a
left over of the previous implementation. It is not longer necessary since the
mkimage -b switch always has one parameter.
Tested-by: Lokesh Vutla <lokeshvutla@ti.com>
Signed-off-by: Andreas Bießmann <andreas@biessmann.org>
The getopt(3) optstring '-' is a GNU extension which is not available on BSD
systems like OS X.
Remove this dependency by implementing argument parsing in another way. This
will also change the lately introduced '-b' switch behaviour.
Signed-off-by: Andreas Bießmann <andreas.devel@googlemail.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
One limitation of FIT is that all the data is 'inline' within it, using a
'data' property in each image node. This means that to find out what is in
the FIT it is necessary to scan the entire file. Once loaded it can be
scanned and then the images can be copied to the correct place in memory.
In SPL it can take a significant amount of time to copy images around in
memory. Also loading data that does not end up being used is wasteful. It
would be useful if the FIT were small, acting as a directory, with the
actual data stored elsewhere.
This allows SPL to load the entire FIT, without the images, then load the
images it wants later.
Add a -E option to mkimage to request that it output an 'external' FIT.
Signed-off-by: Simon Glass <sjg@chromium.org>
To make the auto-FIT feature useful we need to be able to provide a list of
device tree files on the command line for mkimage to add into the FIT. Add
support for this feature.
So far there is no support for hashing or verified boot using this method.
For those cases, a .its file must still be provided.
Signed-off-by: Simon Glass <sjg@chromium.org>
At present, when generating a FIT, mkimage requires a .its file containing
the structure of the FIT and referring to the images to be included.
Creating the .its file is a separate step that makes it harder to use FIT.
This is not required for creating legacy images.
Often the FIT is pretty standard, consisting of an OS image, some device
tree files and a single configuration. We can handle this case automatically
and avoid needing a .its file at all.
To start with, support automatically generate the FIT using a new '-f auto'
option. Initially this only supports adding a single image (e.g. a linux
kernel) and a single configuration.
Signed-off-by: Simon Glass <sjg@chromium.org>
At present FIT images are set up by providing a device tree source file
which is a file with a .its extension. We want to support automatically
creating this file based on the image supplied to mkimage. This means that
even though the final file type is always IH_TYPE_FLATDT, the image inside
may be something else.
Signed-off-by: Simon Glass <sjg@chromium.org>
Sometimes incorrect arguments are supplied but the reason is not obvious to
the user. Add some helpful messages.
Signed-off-by: Simon Glass <sjg@chromium.org>
Adjust the code so that option alphabetical order matches the order in the
switch() statement. This makes it easier to find options.
Signed-off-by: Simon Glass <sjg@chromium.org>
The current way of parsing arguments is a bit clumsy. It seems better to
use getopt() which is commonly used for this purpose.
Convert the code to use getopt() and make a few minor adjustments as needed.
Signed-off-by: Simon Glass <sjg@chromium.org>
To follow the MIPS 32-bit and 64-bit memory map conventions (*) recent
MIPS Linux kernels are using a 64-bit sign extended value
(0xffffffff80010000) for the 32-bit load address (0x80010000) of the
Creator CI20 board kernel. When this 64-bit argument was passed to
mkimage running on a 32-bit machine such as the Creator CI20 board the
load address was incorrectly formed from the upper 32-bit sign-extend
bits (0xffffffff) by the strtoul instead of from the lower 32-bits
(0x80010000). The mkimage should be able to tolerate the longer
sign-extended 64-bit version of the 32-bit arguments with the use of
strtoull. Use of the strtoll in place of the strtol in mkimage.c
resolves the issue of self hosted kernel builds for the Creator CI20
board (+) and (++).
(*) http://techpubs.sgi.com/library/dynaweb_docs/0620/SGI_Developer/books/DevDriver_PG/sgi_html/ch01.html
(+) https://github.com/MIPS/CI20_linux/issues/23
(++) https://github.com/MIPS/CI20_linux/issues/22
Signed-off-by: William Cohen <wcohen@redhat.com>
Seems 6ae6e160 broke creating images in certain cases, there
are two problems with that patch.
First is that the expression "!x == 4 || !x == 6" is ambiguous. The
intention here was "!(x == 4) || !(x == 6)" based on reading further in
the file, where this was borrowed from. This however is interpreted by
gcc as "(!x) == 4 || (!x) == 6" and always false. gcc-5.x will warn
about this case.
The second problem is that we do not want to test for the case of "(NOT x
is 4) OR (NOT x is 6)" but instead "(x is not equal to 4) AND (x is not
equal to 6)". This is because in those two cases we already execute the
code question in another part of the file. Rewrite the expression and
add parenthesis for clarity.
Signed-off-by: Marek Vasut <marex@denx.de>
Cc: Tom Rini <trini@konsulko.com>
Cc: Philippe De Swert <philippedeswert@gmail.com>
Cc: Simon Glass <sjg@chromium.org>
[trini: Re-word Marek's explanation]
Seems 92a655c3 broke creating multi and script type images.
Since the file1:file2:file3 string does not get split up,
it fails on trying to open an non-existing file.
mkimage -A arm -O linux -T multi -C none -d zImage:splash.bmp:device.dtb uimage
tools/mkimage: Can't open zImage:splash.bmp:device.dtb: No such file or directory
Since the sizes of the different parts seem to get added in the actual
routine that handles multi and script type images, we can probably skip the
bit of the code that causes the failure for that type of images.
Signed-off-by: Philippe De Swert <philippedeswert@gmail.com>
At present there is an arbitrary limit of 4KB for padding. Rockchip needs
more than that, so remove this restriction.
Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Joe Hershberger <joe.hershberger@ni.com>
Some functions called by mkimage would like to know the output file size.
Initially this is the same as the input file size, but it may be affected by
adding headers, etc.
Add this information to the image parameters.
Signed-off-by: Simon Glass <sjg@chromium.org>
Acked-by: Joe Hershberger <joe.hershberger@ni.com>
Offer to display the available image types in help. Also, rather than
hacking the genimg_get_type_id() function to display a list of types,
do this in the tool. Also, sort the list.
The list of image types is quite long, and hard to discover. Print it out
when we show help information.
Signed-off-by: Simon Glass <sjg@chromium.org>
Some image types, like "KeyStone GP", do not have magic numbers to
distinguish them from other image types. Thus, the automatic image
type discovery does not work correctly.
This patch also fix some integer type mismatches.
Signed-off-by: Guilherme Maciel Ferreira <guilherme.maciel.ferreira@gmail.com>
The registration was introduced in commit f86ed6a8d5
This commit also removes all registration functions, and the member "next"
from image_type_params struct
Signed-off-by: Guilherme Maciel Ferreira <guilherme.maciel.ferreira@gmail.com>
The get_type() and verify_print_header() functions have the
same code on both dumpimage.c and mkimage.c modules.
Signed-off-by: Guilherme Maciel Ferreira <guilherme.maciel.ferreira@gmail.com>
In order to avoid duplicating code and keep only one point of modification,
the functions, structs and defines useful for "dumpimage" were moved from
"mkimage" to a common module called "imagetool".
This modification also weakens the coupling between image types (FIT, IMX, MXS,
and so on) and image tools (mkimage and dumpimage). Any tool may initialize the
"imagetool" through register_image_tool() function, while the image types
register themselves within an image tool using the register_image_type()
function:
+---------------+
+------| fit_image |
+--------------+ +-----------+ | +---------------+
| mkimage |--------> | | <-----+
+--------------+ | | +---------------+
| imagetool | <------------| imximage |
+--------------+ | | +---------------+
| dumpimage |--------> | | <-----+
+--------------+ +-----------+ | +---------------+
+------| default_image |
+---------------+
register_image_tool() register_image_type()
Also, the struct "mkimage_params" was renamed to "image_tool_params" to make
clear its general purpose.
Signed-off-by: Guilherme Maciel Ferreira <guilherme.maciel.ferreira@gmail.com>
Signed-off-by: Simon Glass <sjg@chromium.org>
This function should be declared static.
Signed-off-by: Guilherme Maciel Ferreira <guilherme.maciel.ferreira@gmail.com>
Signed-off-by: Simon Glass <sjg@chromium.org>
Add mkimage support for generating and verifying MXS bootstream.
The implementation here is mostly a glue code between MXSSB v0.4
and mkimage, but the long-term goal is to rectify this and merge
MXSSB with mkimage more tightly. Once this code is properly in
U-Boot, MXSSB shall be deprecated in favor of mkimage-mxsimage
support.
Note that the mxsimage generator needs libcrypto from OpenSSL, I
therefore enabled the libcrypto/libssl unconditionally.
MXSSB: http://git.denx.de/?p=mxssb.git;a=summary
The code is based on research presented at:
http://www.rockbox.org/wiki/SbFileFormat
Signed-off-by: Marek Vasut <marex@denx.de>
Cc: Tom Rini <trini@ti.com>
Cc: Fabio Estevam <fabio.estevam@freescale.com>
Cc: Stefano Babic <sbabic@denx.de>
Cc: Otavio Salvador <otavio@ossystems.com.br>
Use previously unused return value of function vrec_header
to return a padding size to generic mkimage. This padding
size is used in copy_files to pad with zeros after copying
the data image.
Signed-off-by: Stefano Babic <sbabic@denx.de>
Normally, multiple public keys can be provided and U-Boot is not
required to use all of them for verification. This is because some
images may not be signed, or may be optionally signed.
But we still need a mechanism to determine when a key must be used.
This feature cannot be implemented in the FIT itself, since anyone
could change it to mark a key as optional. The requirement for
key verification must go in with the public keys, in a place that
is protected from modification.
Add a -r option which tells mkimage to mark all keys that it uses
for signing as 'required'.
If some keys are optional and some are required, run mkimage several
times (perhaps with different key directories if some keys are very
secret) using the -F flag to update an existing FIT.
Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Marek Vasut <marex@denx.de>
When signing an image, it is useful to add some details about which tool
or person is authorising the signing. Add a comment field which can take
care of miscellaneous requirements.
Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Marek Vasut <marex@denx.de>
When signing images it is sometimes necessary to sign with different keys
at different times, or make the signer entirely separate from the FIT
creation to avoid needing the private keys to be publicly available in
the system.
Add a -F option so that key signing can be a separate step, and possibly
done multiple times as different keys are avaiable.
Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Marek Vasut <marex@denx.de>
FIT image verification requires public keys. Add a convenient option to
mkimage to write the public keys to an FDT blob when it uses then for
signing an image. This allows us to use:
mkimage -f test.its -K dest.dtb -k keys test.fit
and have the signatures written to test.fit and the corresponding public
keys written to dest.dtb. Then dest.dtb can be used as the control FDT
for U-Boot (CONFIG_OF_CONTROL), thus providing U-Boot with access to the
public keys it needs.
Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Marek Vasut <marex@denx.de>
Keys required for signing images will be in a specific directory. Add a
-k option to specify that directory.
Also update the mkimage man page with this information and a clearer list
of available commands.
Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Marek Vasut <marex@denx.de> (v1)
Provides a tool to build boot Image for PBL(Pre boot loader) which is
used on Freescale CoreNet SoCs, PBL can be used to load some instructions
and/or data for pre-initialization. The default output image is u-boot.pbl,
for more details please refer to doc/README.pblimage.
Signed-off-by: Shaohui Xie <Shaohui.Xie@freescale.com>
Signed-off-by: Andy Fleming <afleming@freescale.com>
Support for variable length images like AIS image was introduced
in commit f0662105b6. A parameter
"-s" was also introduced to prohibit copying of the image file
automatically in the main program. However, this parameter
was implemented incorrectly and the image file was copied
nevertheless.
Signed-off-by: Christian Riesch <christian.riesch@omicron.at>
Cc: Stefano Babic <sbabic@denx.de>
Cc: Heiko Schocher <hs@denx.de>
Acked-by: Stefano Babic <sbabic@denx.de>
Some Davinci processors supports the Application
Image Script (AIS) boot process. The patch adds the generation
of the AIS image inside the mkimage tool to make possible
to generate a bootable U-boot without external tools
(TI Davinci AIS Generator).
Signed-off-by: Stefano Babic <sbabic@denx.de>
CC: Wolfgang Denk <wd@denx.de>
Some images have not a header of fix lenght. The patch will be
used for the generation of AIS images, because this header has
a variable lenght. The patch adds also the parameter "-s" (skip)
to not copy automatically the passed image file.
Signed-off-by: Stefano Babic <sbabic@denx.de>
- Add mkimage support for OMAP boot image
- Add support for OMAP boot image(MLO) generation in the new
SPL framework
Signed-off-by: John Rigby <john.rigby@linaro.org>
Signed-off-by: Aneesh V <aneesh@ti.com>
Signed-off-by: Sandeep Paulraj <s-paulraj@ti.com>
creating an u-boot.ubl file, which contains the UBL Header
needed for booting from NAND with the RBL from TI. For more
information read doc/README.ublimage.
Signed-off-by: Heiko Schocher <hs@denx.de>
Version 4.2.4 of gcc produces the following warnings without this change:
mkimage.c: In function ‘main’:
mkimage.c:204: warning: dereferencing type-punned pointer will break strict-aliasing rules
mkimage.c:222: warning: dereferencing type-punned pointer will break strict-aliasing rules
Signed-off-by: Peter Tyser <ptyser@xes-inc.com>
The restructuring of the mkimage command in commit 89a4d6b1 ("tools:
mkimage: split code into core, default and FIT image specific")
introduced a bug that caused mkimage to segfault when run without
"-n name" option. Initialize the imagename entry to prevent that.
Signed-off-by: Wolfgang Denk <wd@denx.de>
Some people boot images with the entry point in the middle of the blob
(like Linux with the head code in discardable .init.text), and there is no
no real requirement that the entry point be right after the mkimage header
when doing XIP, so let people specify whatever they want. If they do need
an entry right after the header, then they still can do that with normal
-e behavior.
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
This patch adds support for "imximage" (MX Boot Image)
to the mkimage utility. The imximage is used on the Freescales's
MX.25, MX.35 and MX.51 processors.
Further details under doc/README.imximage.
This patch was tested on a Freescale mx51evk board.
Signed-off-by: Stefano Babic <sbabic@denx.de>
Recent commits 1a99de2cb4 and
6a590c5f5f both fixed the same bug in the
same manner. Unfortunately git was "smart" enough to merge both changes
which resulted in some duplicate code.
Signed-off-by: Peter Tyser <ptyser@xes-inc.com>
Reordered code and comment a bit.
Signed-off-by: Wolfgang Denk <wd@denx.de>
Previously, there was no indication to the user that a FIT image was
successfully created after executing mkimage. For example:
$ mkimage -f uImage.its uImage.itb
DTC: dts->dtb on file "uImage.its"
Adding some additional output after creating a FIT image lets the user
know exactly what is contained in their image, eg:
$ mkimage -f uImage.its uImage.itb
DTC: dts->dtb on file "uImage.its"
FIT description: Linux kernel 2.6.32-rc7-00201-g7550d6f-dirty
Created: Tue Nov 24 15:43:01 2009
Image 0 (kernel@1)
Description: Linux Kernel 2.6.32-rc7-00201-g7550d6f-dirty
Type: Kernel Image
Compression: gzip compressed
Data Size: 2707311 Bytes = 2643.86 kB = 2.58 MB
Architecture: PowerPC
OS: Linux
Load Address: 0x00000000
Entry Point: 0x00000000
Hash algo: crc32
Hash value: efe0798b
Hash algo: sha1
Hash value: ecafba8c95684f2c8fec67e33c41ec88df1534d7
Image 1 (fdt@1)
Description: Flattened Device Tree blob
Type: Flat Device Tree
Compression: uncompressed
Data Size: 12288 Bytes = 12.00 kB = 0.01 MB
Architecture: PowerPC
Hash algo: crc32
Hash value: a5cab676
Hash algo: sha1
Hash value: 168722b13e305283cfd6603dfe8248cc329adea6
Default Configuration: 'config@1'
Configuration 0 (config@1)
Description: Default Linux kernel
Kernel: kernel@1
FDT: fdt@1
This brings the behavior of creating a FIT image in line with creating a
standard uImage, which also prints out the uImage contents after
creation.
Signed-off-by: Peter Tyser <ptyser@xes-inc.com>
When building a Flattened Image Tree (FIT) the image type needs to be
"flat_dt". Commit 89a4d6b12f introduced a
regression which caused the user to need to specify the "-T flat_dt"
parameter on the command line when building a FIT image. The "-T
flat_dt" parameter should not be needed and is at odds with the current
FIT image documentation.
Signed-off-by: Peter Tyser <ptyser@xes-inc.com>
The type is not set for generation of the FIT images, resulting
in no images being created without printing or returning an error
Signed-off-by: Remy Bohmer <linux@bohmer.net>
This patch adds support for "kwbimage" (Kirkwood Boot Image)
image types to the mkimage code.
For details refer to docs/README.kwbimage
This patch is tested with Sheevaplug board
Signed-off-by: Prafulla Wadaskar <prafulla@marvell.com>
Acked-by: Ron Lee <ron@debian.org>
Signed-off-by: Prafulla Wadaskar <prafulla@marvell.com>
This is a first step towards reorganizing the mkimage code to make it
easier to add support for additional images types. Current mkimage
code is specific to generating uImage and FIT image files, but the
same framework can be used to generate other image types like
Kirkwood boot images (kwbimage-TBD). For this, the mkimage code gets
reworked:
Here is the brief plan for the same:-
a) Split mkimage code into core and image specific support
b) Implement callback functions for image specific code
c) Move image type specific code to respective C files
Currently there are two types of file generation/list
supported (i.e uImage, FIT), the code is abstracted from
mkimage.c/.h and put in default_image.c and fit_image.c;
all code in these file is static except init function call
d) mkimage_register API is added to add new image type support
All above is addressed in this patch
e) Add kwbimage type support to this new framework (TBD)
This will be implemented in a following commit.
Signed-off-by: Prafulla Wadaskar <prafulla@marvell.com>
Edit commit message, fix coding style and typos.
Signed-off-by: Wolfgang Denk <wd@denx.de>
uninitialized retval variable warning fixed
crc32 APIs moved to crc.h (newly added) and build warnings fixed
Signed-off-by: Prafulla Wadaskar <prafulla@marvell.com>
Signed-off-by: Wolfgang Denk <wd@denx.de>
List command always return "EXIT_SUCCESS" even in case of
failure by any means.
This patch return 0 if list command is sucessful,
returns negative value reported by check_header functions
Signed-off-by: Prafulla Wadaskar <prafulla@marvell.com>
Signed-off-by: Wolfgang Denk <wd@denx.de>
Some files included my old standerd file header which had a "All
Rights Reserved" part. As this has never been my intention, I remove
these lines to make the files compatible with GPL v.2 and later.
Signed-off-by: Wolfgang Denk <wd@denx.de>
Shove a lot of the HOSTCC and related #ifdef checking crap into the new
compiler.h header so that we can keep all other headers nice and clean.
Also introduce custom uswap functions so we don't have to rely on the non
standard implementations that a host may (or may not in the case of OS X)
provide. This allows mkimage to finally build cleanly on an OS X system.
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
The mmap() related code is full of inconsistent casts/constants when
it comes to error checking, and may break when building on some
systems (like ones that do not implicitly define the caddr_t type).
Let's just avoid the whole mess by writing the code nice and clean in
the first place.
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
As suggested by Wolfgang Denk:
- image printing functions:
- remove wrappers
- remove indentation prefix from functions' signatures
- merge getenv_verify and getenv_autostart into one parametrized function
Signed-off-by: Bartlomiej Sieka <tur@semihalf.com>
Support for the new uImage format (FIT) is added to mkimage tool.
Commandline syntax is appropriately extended:
mkimage [-D dtc_options] -f fit-image.its fit-image
mkimage (together with dtc) takes fit-image.its and referenced therein
binaries (like vmlinux.bin.gz) as inputs, and produces fit-image file -- the
final image that can be transferred to the target (e.g., via tftp) and then
booted using the bootm command in U-Boot.
Signed-off-by: Bartlomiej Sieka <tur@semihalf.com>
This patch adds the following common routines:
1) Dedicated mkimage print_header() is replaced with common
image_print_contents()
image_print_contents_noindent()
2) Common os/arch/type/comp fields name <--> id translation routines
genimg_get_os_name()
genimg_get_arch_name()
genimg_get_type_name()
genimg_get_comp_name()
genimg_get_os_id()
genimg_get_arch_id()
genimg_get_type_id()
genimg_get_comp_id()
Signed-off-by: Marian Balakowicz <m8@semihalf.com>
This patch introduces the following prefix convention for the
image format handling and bootm related code:
genimg_ - dual format shared code
image_ - legacy uImage format specific code
fit_ - new uImage format specific code
boot_ - booting process related code
Related routines are renamed and a few pieces of code are moved around and
re-grouped.
Signed-off-by: Marian Balakowicz <m8@semihalf.com>
- Add inline helper macros for basic header processing
- Move common non inline code common/image.c
- Replace direct header access with the API routines
- Rename IH_CPU_* to IH_ARCH_*
Signed-off-by: Marian Balakowicz <m8@semihalf.com>
- add support for Analog Devices Blackfin BF533 CPU
- add support for the ADI BF533 Stamp uClinux board
- add support for the ADI BF533 EZKit board
Patches by Richard Klingler, June 11th 2005:
* Patch by Daniel Poirot, 24 Jun 2004:
Add support for Wind River's sbc8240 board
* Patches by Yasushi Shoji, 26 Jun 2004:
- drivers/serial_xuartlite.c: fix "return 0" in void function
- add microblaze support to mkimage tool
Fixes for for OMAP1610 board:
- shift some IRQ specific code to platform.S file
- remove duplicatewatchdog reset code from start.S
* Make Auto-MDIX Support configurable on INCA-IP board
* Fix license for mkimage tool
recent tools
* Add checksum verification to 'imls' command
* Add bd_info fields needed for 4xx Linux I2C driver
* Patch by Martin Krause, 4 Nov. 2003:
Fix error in cmd_vfd.c (TRAB board: "vfd /1" shows now only one Bitmap)
* Print used network interface when CONFIG_NET_MULTI is set
allow mkimage to build and run on Cygwin-hosted systems
* Patch by Frank Mller, 18 Sep 2003:
use bi_intfreq instead of bi_busfreq to compute fec_mii_speed in
cpu/mpc8xx/fec.c
* Patch by Pantelis Antoniou, 16 Sep 2003:
add tool to compute fileds in the PLPRCR register for MPC86x
- Correct flash and JFFS2 support for MPC8260ADS
- fix PVR values and clock generation for PowerQUICC II family
(8270/8275/8280)
* Patch by Bernhard Kuhn, 08 Jul 2003:
- add support for M68K targets
* Patch by Ken Chou, 3 Jul:
- Fix PCI config table for A3000
- Fix iobase for natsemi.c
(PCI_BASE_ADDRESS_0 is the IO base register for DP83815)
* Allow to enable "slow" POST routines by key press on power-on
* Fix temperature dependend switching of LCD backlight on LWMON
* Tweak output format for LWMON
update for CrayL1 board
* Patch by Pantelis Antoniou, 21 Apr 2003:
add boot support for ARTOS (a proprietary OS)
* Patch by Steven Scholz, 11 Apr 2003:
Add support for RTC DS1338
* Patch by Rod Boyce, 24 Jan 2003:
Fix counting of extended partitions in diskboot command
* MPC823 LCD driver: Fill color map backwards, to allow for steady
display when Linux takes over
* Patch by Erwin Rol, 27 Feb 2003:
Add support for RTEMS (this time for real).
* Add support for "bmp info" and "bmp display" commands to load
bitmap images; this can be used (for example in a "preboot"
command) to display a splash screen very quickly after poweron.
* Add support for 133 MHz clock on INCA-IP board
