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>
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>
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>
Doing the fdt before the ramdisk allows us to grow the fdt w/o concern
however it does mean we have to go in and fixup the initrd info since
we don't know where it will be.
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
If we are bootin OF style than we can skip setting up some things
that are used for the old boot method.
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
Acked-by: Marian Balakowicz <m8@semihalf.com>
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>
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>
FDT blob may be passed either: (1) raw (2) or embedded in the legacy uImage
(3) or embedded in the new uImage. For the (2) case embedding image must be
verified before we get FDT from it. This patch factors out legacy image
specific verification routine to the separate helper routine.
Signed-off-by: Marian Balakowicz <m8@semihalf.com>
Acked-by: Kumar Gala <galak@kernel.crashing.org>
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>
PPC specific FDT blob handling code is divided into two separate routines:
get_fdt() - find and verify a FDT blob (either raw or image embedded)
fdt_relocate() - move FDT blob to within BOOTMAP if needed
Signed-off-by: Marian Balakowicz <m8@semihalf.com>
Acked-by: Kumar Gala <galak@kernel.crashing.org>
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>
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>
Move FDT blob finding and relocation to a dedicated
get_fdt() routine. It increases code readability and
will make adding support for new uImage format easier.
Signed-off-by: Marian Balakowicz <m8@semihalf.com>
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>
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>
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>
FDT error handling in PPC do_bootm_linux() shares the same message format.
This patch moves error message printing to a helper fdt_error() routine.
Signed-off-by: Marian Balakowicz <m8@semihalf.com>
Acked-by: Gerald Van Baren <vanbaren@cideas.com>
Support for OF_FLAT_TREE is to be obsoleted in the near future,
remove related code from the bootm routines.
Signed-off-by: Marian Balakowicz <m8@semihalf.com>
Implementation of the do_bootm_linux() and other bootm helper routines is
architecture specific code. As such it resides in lib_<arch> directories
in files named <arch>_linux.c
This patch renames those files to a more clear and accurate
lib_<arch>/bootm.c form.
List of the renamed files:
lib_arm/armlinux.c -> lib_arm/bootm.c
lib_avr32/avr32_linux.c -> lib_avr32/bootm.c
lib_blackfin/bf533_linux.c -> lib_blackfin/bootm.c
lib_i386/i386_linux.c -> lib_i386/bootm.c
lib_m68k/m68k_linux.c -> lib_m68k/bootm.c
lib_microblaze/microblaze_linux.c -> lib_microblaze/bootm.c
lib_mips/mips_linux.c -> lib_mips/bootm.c
lib_nios/nios_linux.c -> lib_nios/bootm.c
lib_nios2/nios_linux.c -> lib_nios2/bootm.c
lib_ppc/ppc_linux.c -> lib_ppc/bootm.c
lib_sh/sh_linux.c -> lib_sh/bootm.c
Signed-off-by: Marian Balakowicz <m8@semihalf.com>
