ARM64 uses the newer RELA-style relocations rather than the older REL.
RELA relocations have an addend in the relocation struct, rather than
expecting the loader to read a value from the location to be updated.
While this is beneficial for ordinary program loading, it's problematic
for U-Boot because the location to be updated starts out with zero,
rather than a pre-relocation value. Since we need to be able to run C
code before relocation, we need a tool to apply the relocations at
build time.
In theory this tool is applicable to other newer architectures (mainly
64-bit), but currently the only relocations it supports are for arm64,
and it assumes a 64-bit little-endian target. If the latter limitation
is ever to be changed, we'll need a way to tell the tool what format
the image is in. Eventually this may be replaced by a tool that uses
libelf or similar and operates directly on the ELF file. I've written
some code for such an approach but libelf does not make it easy to poke
addresses by memory address (rather than by section), and I was
hesitant to write code to manually parse the program headers and do the
update outside of libelf (or to iterate over sections) -- especially
since it wouldn't get test coverage on things like binaries with
multiple PT_LOAD segments. This should be good enough for now to let
the manual relocation stuff be removed from the arm64 patches.
Signed-off-by: Scott Wood <scottwood@freescale.com>
Signed-off-by: David Feng <fenghua@phytium.com.cn>
u-boot-dtb-tegra.bin and u-boot-nodtb-tegra.bin binaries
are generated only if the SPL build is enabled as they have
dependency on SPL build
Signed-off-by: Vidya Sagar <vidyas@nvidia.com>
Signed-off-by: Tom Warren <twarren@nvidia.com>
Current LDS files /DISCARD/ a lot of sections when linking ELF
files, causing diagnostic tools such as readelf or objdump to
produce partial output. Keep all section at link stage, filter
only at objcopy time so that .bin remains minimal.
Signed-off-by: Albert ARIBAUD <albert.u.boot@aribaud.net>
Reviewed-by: Benoît Thébaudeau <benoit.thebaudeau@advansee.com>
Freescale DDR driver has been used for mpc83xx, mpc85xx, mpc86xx SoCs.
The similar DDR controllers will be used for ARM-based SoCs.
Signed-off-by: York Sun <yorksun@freescale.com>
All objects under api/ and examples/api/ directories are selected
by CONFIG_API.
So we can move CONFIG_API switch to the top Makefile.
In order to use CONFIG_API, the definition of SUBDIR_EXAMPLES-y
must be moved after "sinlude $(obj)include/autoconf.mk".
Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com>
tools/updater needs board/MAI/AmigaOneG3SE board
for compiling.
But AmigaOneG3SE board was already deleted
by Commit 953b7e6.
Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com>
We have converted all makefiles needed to build $(LIBS).
Until this commit we used to grep switch so that U-Boot style
and Kbuild style makefiles coexist.
But we do not need any more.
Goint forward, use always Kbuild style Makefile when adding
a new Makefile
Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com>
This patch moves S5PC, EXYNOS specific directory entries
from the toplevel Makefile to arch/arm/cpu/armv7/Makefile
using Kbuild descending feature.
Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com>
Cc: Minkyu Kang <mk7.kang@samsung.com>
This patch moves OMAP specific directory entries
from the toplevel Makefile and spl/Makefile
to arch/arm/cpu/armv7/Makefile using Kbuild descending feature.
Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com>
Cc: Tom Rini <trini@ti.com>
This patch moves Tegra specific directory entries
from the toplevel Makefile and spl/Makefile
to arch/arm/cpu/*/Makefile using Kbuild descending feature.
Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com>
Cc: Tom Warren <TWarren@nvidia.com>
This commit moves some subdirectories of fs
from the toplevel Makefile to fs/Makefile
using Kbuild descending feature.
Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com>
Acked-by: Simon Glass <sjg@chromium.org>
This commit moves some drivers subdirectory entry
from the toplevel Makefile to drivers/Makefile
using Kbuild descending feature.
Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com>
Multiple targets are included in arch/arm/imx-common/Makefile
In order to refactor it,
we need to tweak Makefile and spl/Makefile.
Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com>
Every makefile in sub directories has common lines
at the top and the bottom.
This commit pushes the common parts into script/Makefile.build.
Going forward sub-makefiles only need to describe this part:
COBJS := ...
COBJS += ...
SOBJS := ...
But using obj-y is preferable to prepare for switching to Kbuild.
The conventional (non-Kbuild) Makefile style is still supported.
This is achieved by greping the Makefile before entering into it.
U-Boot conventional sub makefiles always include some other makefiles.
So the build system searches a line beginning with "include" keyword
in the makefile in order to distinguish which style it is.
If the Makefile include a "include" line, we assume it is a conventional
U-Boot style. Otherwise, it is treated as a Kbuild-style makefile.
With this tweak, we can switch sub-makefiles
from U-Boot style to Kbuild style little by little.
obj-y := foo/
syntax (descending into the sub directory) is not supportd yet.
It will be implemented in the upcomming commit.
Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com>
Cc: Simon Glass <sjg@chromium.org>
Cc: Tom Rini <trini@ti.com>
Previous process of compiling a PBL boot image is:
1: make <board_name_config>
2: make u-boot.pbl
for example:
make T4240QDS_SDCARD_config
make u-boot.pbl
Now the process is:
1: make <board_name>
for example:
make T4240QDS_SDCARD
Also, updated README.pblimage.
Signed-off-by: Shaohui Xie <Shaohui.Xie@freescale.com>
This patch add support for new multi function pmic max77693.
The driver is split into three modules: pmic, muic and fuelgage.
Signed-off-by: Piotr Wilczek <p.wilczek@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Signed-off-by: Minkyu Kang <mk7.kang@samsung.com>
In commit 27af930, the top Makefile was adjusted to the new
boards.cfg format.
But at the same time, -d option was added.
If you configure and make separately, for example
like follows:
make omap4_panda_config
make CROSS_COMPILE=<your_compiler_prefix>
it works fine as it did before.
But if you do them in one time like follows:
make omap4_panda CROSS_COMPILE=<your_compiler_prefix>
The log is sprinkled with annoying make debug messages.
This commit deletes -d option again.
Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com>
Tested-by: Nishanth Menon <nm@ti.com>
Fix various misspellings of things like "environment", "kernel",
"default" and "volatile", and throw in a couple grammar fixes.
Signed-off-by: Robert P. J. Day <rpjday@crashcourse.ca>
Put all informations about targets, including state (active or
orphan) and maintainers, in boards.cfg; remove MAINTAINERS;
adjust the build system accordingly.
Signed-off-by: Albert ARIBAUD <albert.u.boot@aribaud.net>
Use of uImage formatted u-boot have long been preferred, and recent
changes to better support Falcon mode on MMC now enforces it on MMC.
Signed-off-by: Henrik Nordstrom <henrik@henriknordstrom.net>
Update the Makefiles so that all boards can use the same spl generation tool
Signed-off-by: Inderpal Singh <inderpal.singh@linaro.org>
Acked-by: Simon Glass <sjg@chromium.org>
Signed-off-by: Minkyu Kang <mk7.kang@samsung.com>
Due to the nand SPL on some board(e.g. P1022DS)has a size limit, it can
not be more than 4K. So, the SPL cannot initialize the DDR with the SPD
code. This patch introduces TPL to enable a loader stub that is loaded
by the code from the SPL. It initializes the DDR with the SPD or other
operations.
The TPL's size is sizeable, the maximum size is decided by the memory's
size that TPL runs. It initializes the DDR through SPD code, and copys
final uboot image to DDR. So there are three stage uboot images:
* spl_boot, * tpl_boot, * final uboot image
Signed-off-by: Ying Zhang <b40530@freescale.com>
Acked-by: York Sun <yorksun@freescale.com>
