Commit graph

120 commits

Author SHA1 Message Date
Marian Balakowicz
9a4daad0a3 [new uImage] Update naming convention for bootm/uImage related code
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>
2008-02-29 14:58:34 +01:00
Kumar Gala
d3f2fa0d27 [new uImage] Provide ability to restrict region used for boot images
Allow the user to set 'bootm_low' and 'bootm_size' env vars as a way
to restrict what memory range is used for bootm.

Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
Acked-by: Marian Balakowicz <m8@semihalf.com>
2008-02-29 13:15:56 +01:00
Kumar Gala
e822d7fc4d [new uImage] Use lmb for bootm allocations
Convert generic ramdisk_high(), get_boot_cmdline(), get_boot_kbd()
functions over to using lmb for allocation of the ramdisk, command line
and kernel bd info.

Convert PPC specific fdt_relocate() to use lmb for allocation of the device
tree.

Provided a weak function that board code can call to do additional
lmb reserves if needed.

Also introduce the concept of bootmap_base to specify the offset in
physical memory that the bootmap is located at.  This is used for
allocations of the cmdline, kernel bd, and device tree as they should
be contained within bootmap_base and bootmap_base + CFG_BOOTMAPSZ.

Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
2008-02-29 13:15:56 +01:00
Kumar Gala
f5614e7926 [new uImage] Add autostart flag to bootm_headers structure
The autostart env variable was dropped as part of the initial new uImage
cleanup.  Add it back here so the arch specific code can decide if it
wants to really boot or not.

Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
Acked-by: Marian Balakowicz <m8@semihalf.com>
2008-02-29 13:15:56 +01:00
Kumar Gala
274cea2bdd [new uImage] rework error handling so common functions don't reset
Changed image_get_ramdisk() to just return NULL on error and have
get_ramdisk() propogate that error to the caller.  It's left to the
caller to call do_reset() if it wants to.

Also moved calling do_reset() in get_fdt() and fdt_relocate() on ppc
to a common location.  In the future we will change get_fdt() and
fdt_relocate() to return success/failure and not call do_reset() at all.

Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
Acked-by: Marian Balakowicz <m8@semihalf.com>
2008-02-29 12:32:50 +01:00
Kumar Gala
a6612bdfe7 [new uImage] Don't pass kdb to ramdisk_high since we may not have one
We don't actually need the kdb param as we are just using it to get
bd->bi_memsize which we can get from gd->bd->bi_memsize.  Also, if we
boot via OF we might not actually fill out a kdb.

Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
Acked-by: Marian Balakowicz <m8@semihalf.com>
2008-02-29 12:27:21 +01:00
Marian Balakowicz
4efbe9dbb1 [new uImage] Correct raw FDT blob handlig when CONFIG_FIT is disabled
Dual format image code must properly handle all three FDT passing methods:
- raw FDT blob passed
- FDT blob embedded in the legacy uImage
- FDT blob embedded in the new uImage

This patch enables proper raw FDT handling when no FIT imaeg support
is compiled in. This is a bit tricky as we must dected FIT format even
when FIT uImage handling is not enabled as both FIT uImages and raw FDT
blobs use tha same low level format (libfdt).

Signed-off-by: Marian Balakowicz <m8@semihalf.com>
2008-02-27 11:02:26 +01:00
Marian Balakowicz
8a5ea3e616 [new uImage] Move image verify flag to bootm_headers structure
Do not pass image verification flag directly to related routines.
Simplify argument passing and move it to the bootm_header structure which
contains curently processed image specific data and is already being passed
on the argument list.

Signed-off-by: Marian Balakowicz <m8@semihalf.com>
Acked-by: Kumar Gala <galak@kernel.crashing.org>
2008-02-27 11:01:04 +01:00
Marian Balakowicz
6f0f9dfc4e [new uImage] Optimize gen_get_image() flow control
When CONFIG_HAS_DATAFLASH is not defined gen_get_image() routine has nothing
to do, update its control flow to better reflect that simple case.

Signed-off-by: Marian Balakowicz <m8@semihalf.com>
Acked-by: Kumar Gala <galak@kernel.crashing.org>
2008-02-27 11:00:47 +01:00
Marian Balakowicz
d5934ad775 [new uImage] Add dual format uImage support framework
This patch adds framework for dual format images. Format detection is added
and the bootm controll flow is updated to include cases for new FIT format
uImages.

When the legacy (image_header based) format is detected appropriate
legacy specific handling is invoked. For the new (FIT based) format uImages
dual boot framework has a minial support, that will only print out a
corresponding debug messages. Implementation of the FIT specific handling will
be added in following patches.

Signed-off-by: Marian Balakowicz <m8@semihalf.com>
2008-02-25 15:53:49 +01:00
Marian Balakowicz
2242f53698 [new uImage] Rename and move print_image_hdr() routine
Signed-off-by: Marian Balakowicz <m8@semihalf.com>
2008-02-21 17:27:41 +01:00
Marian Balakowicz
f50433d670 [new uImage] Add fit_parse_conf() and fit_parse_subimage() routines
Introducing routines for parsing new uImage format bootm arguments:
[<addr>]#<conf>		- configuration specification
[<addr>]:<subimg>	- subimage specification

New format images can contain multiple subimages of the same type. For example
a single new format image file can contain three kernels, two ramdisks and a
couple of FDT blobs. Subimage and configuration specifications are extensions
to bootm (and other image-related commands) arguments' syntax that allow to
specify which particular subimage should be operated on.

Subimage specification is used to denote a particular subimage. Configurations
are a bit more complex -- they are used to define a particualr booting setup,
for example a (kernel, fdt blob) pair, or a (kernel, ramdisk, fdt blob) tuple,
etc.

Signed-off-by: Marian Balakowicz <m8@semihalf.com>
2008-02-21 17:20:20 +01:00
Marian Balakowicz
fff888a199 [new uImage] Add gen_get_image() routine
This routine assures that image (whether legacy or FIT) is not
in a special dataflash storage.

If image address is a dataflash address image is moved to system RAM.

Signed-off-by: Marian Balakowicz <m8@semihalf.com>
2008-02-21 17:20:19 +01:00
Marian Balakowicz
b6b0fe6460 [new uImage] Cleanup do_botm_linux() boot allocations
This patch moves common pre-boot allocation steps shared between PPC
and M68K to a helper routines:

common:
- get_boot_sp_limit()
- get_boot_cmline()
- get_boot_kbd()

platform:
- set_clocks_in_mhz()

Signed-off-by: Marian Balakowicz <m8@semihalf.com>
2008-02-07 01:13:00 +01:00
Marian Balakowicz
ceaed2b1e5 [new uImage] Move ramdisk loading to a common routine
Ramdisk loading code, including initrd_high variable handling,
was duplicated for PPC and M68K platforms. This patch creates
common helper routine that is being called from both platform
do_bootm_linux() routines.

Signed-off-by: Marian Balakowicz <m8@semihalf.com>
2008-02-07 01:13:00 +01:00
Marian Balakowicz
5ad03eb385 [new uImage] Factor out common image_get_ramdisk() routine
Architecture specific do_bootm_linux() routines share common
ramdisk image processing code. Move this code to a common
helper routine.

Signed-off-by: Marian Balakowicz <m8@semihalf.com>
2008-02-07 01:12:59 +01:00
Marian Balakowicz
42b73e8ee0 [new uImage] Factor out common routines for getting os/arch/type/comp names
Move numeric-id to name translation for image os/arch/type/comp header
fields to a helper routines: image_get_os_name(), image_get_arch_name(),
image_get_type_name(), image_get_comp_name().

Signed-off-by: Marian Balakowicz <m8@semihalf.com>
2008-02-07 01:12:58 +01:00
Marian Balakowicz
f13e7b2e99 [new uImage] Cleanup image header pointer use in bootm code
- use single image header pointer instead of a set of auxilliary variables.
- add multi component image helper routines: get component size/data address

Signed-off-by: Marian Balakowicz <m8@semihalf.com>
2008-02-07 01:12:57 +01:00
Marian Balakowicz
af13cdbc01 [new uImage] Add memmove_wd() common routine
Move common, watchdog sensible memmove code to a helper memmmove_wd() routine.

Signed-off-by: Marian Balakowicz <m8@semihalf.com>
2008-02-07 01:12:56 +01:00
Marian Balakowicz
b97a2a0a21 [new uImage] Define a API for image handling operations
- 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>
2008-02-07 01:12:53 +01:00