Implement write_acpi_table() to create a minimal working ACPI table.
This includes writing FACS, XSDT, RSDP, FADT, MCFG, MADT, DSDT & SSDT
ACPI table entries.
Use a Kconfig option GENERATE_ACPI_TABLE to tell U-Boot whether we need
actually write the APCI table just like we did for PIRQ routing, MP table
and SFI tables. With ACPI table existence, linux kernel gets control of
power management, thermal management, configuration management and
monitoring in hardware.
Signed-off-by: Saket Sinha <saket.sinha89@gmail.com>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
Tidied up whitespace and aligned some tabs:
Signed-off-by: Simon Glass <sjg@chromium.org>
The CFLAGS_REMOVE_<file> feature allows default C compiler flags to be
removed for particular files. Add the same feature for assembler, using
AFLAGS_REMOVE_<file>.
Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
Reviewed-by: Tom Rini <trini@konsulko.com>
Update some build scripts to match Linux 4.1. Commit-based syncing
was done so as not to break U-Boot specific changes.
The previous big sync was from Linux 3.18-rc1 by commit 176d098277
(kbuild: sync misc scripts with Linux 3.18-rc1).
The commits imported from Linux (some with adjustments) are:
[1] commit 9fb5e5372208973984a23ee6f5f025c05d364633
Author: Robert Richter <rrichter@cavium.com>
dts, kbuild: Factor out dtbs install rules to Makefile.dtbinst
[2] commit 371fdc77af44f4cb32475fd499e1d912ccc30890
Author: Masahiro Yamada <yamada.m@jp.panasonic.com>
kbuild: collect shorthands into scripts/Kbuild.include
[3] commit a29b82326ed4eb5567b03c85b52c6891578d5a03
Author: Michal Marek <mmarek@suse.cz>
kbuild: Remove duplicate $(cmd) definition in Makefile.clean
[4] commit 1846dfbde3e8a53f3673dcb1c1b79fd9b3f8d40d
Author: Masahiro Yamada <yamada.m@jp.panasonic.com>
kbuild: remove redundant -rR flag of hdr-inst
[5] commit 34948e0bbf98640fc1821751b01d2f0cd17d84d5
Author: Michal Marek <mmarek@suse.cz>
kbuild: Drop support for clean-rule
[6] commit a16c5f99a28c9945165c46da27fff8e6f26f8736
Author: Michal Marek <mmarek@suse.cz>
kbuild: Fix removal of the debian/ directory
[7] commit d0d38cd9e853db11e0242b3df4c9c3c4a663fbb4
Author: Masahiro Yamada <yamada.m@jp.panasonic.com>
kbuild: use mixed-targets when two or more config targets are given
[8] commit dd33c03b18b3f2db791eb6a17c37d2de66e4de18
Author: Masahiro Yamada <yamada.m@jp.panasonic.com>
kbuild: fix cc-ifversion macro
[9] commit 665d92e38f65d70796aad2b8e49e42e80815d4a4
Author: Masahiro Yamada <yamada.m@jp.panasonic.com>
kbuild: do not add $(call ...) to invoke cc-version or cc-fullversion
[10] commit 6dcb4e5edf39e3b65a75ca76f087b2fdbee8a808
Author: Masahiro Yamada <yamada.m@jp.panasonic.com>
kbuild: allow cc-ifversion to have the argument for false condition
[11] commit c0a80c0c27e5e65b180a25e6c4c2f7ef9e386cd3
Author: Heiko Carstens <heiko.carstens@de.ibm.com>
ftrace: allow architectures to specify ftrace compile options
[12] commit 0b24becc810dc3be6e3f94103a866f214c282394
Author: Andrey Ryabinin <a.ryabinin@samsung.com>
kasan: add kernel address sanitizer infrastructure
[13] commit 4218affdf57f938c04e3a916a9685ee27079f377
Author: Masahiro Yamada <yamada.m@jp.panasonic.com>
kbuild: remove warning about "make depend"
[14] commit 77479b38e2f58890eb221a0418357502a5b41cd6
Author: Nathan Rossi <nathan.rossi@xilinx.com>
kbuild: Create directory for target DTB
Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com>
Signed-off-by: Robert Richter <rrichter@cavium.com>
Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Signed-off-by: Andrey Ryabinin <a.ryabinin@samsung.com>
Signed-off-by: Nathan Rossi <nathan.rossi@xilinx.com>
Signed-off-by: Michal Simek <michal.simek@xilinx.com>
Signed-off-by: Olof Johansson <olof@lixom.net>
Signed-off-by: Michal Marek <mmarek@suse.cz>
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Device trees must be aligned to a 4-byte boundary. This was dropped in the
Kbuild conversion. Bring it back, and use 16-byte alignment for good
measure.
Signed-off-by: Simon Glass <sjg@chromium.org>
Since Linux 3.18-rc1, Kbuild is able to handle multi-objs
dependency correctly, which also allows us futher cleanups
of some makefiles.
This commit imports those commits:
[1] commit c8589d1e9e01 by Masahiro Yamada
kbuild: handle multi-objs dependency appropriately
[2] commit 97e3226e6e98 by Masahiro Yamada
kbuild: handle the dependency of multi-objs hostprogs appropriately
[3] commit 022af62d0190 by Masahiro Yamada
kbuild: refactor script/kconfig/Makefile
[4] commit 221ecca6cafe by Masahiro Yamada
kbuild: remove redundant clean-files from scripts/kconfig/Makefile
Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com>
Linux supports this, and if we are to have compatible device tree files,
U-Boot should also.
Avoid giving the device tree files access to U-Boot's include/ directory.
Only include/dt-bindings is accessible.
Signed-off-by: Simon Glass <sjg@chromium.org>
Acked-by: Stephen Warren <swarren@nvidia.com>
Reviewed-by: Masahiro Yamada <yamada.m@jp.panasonic.com>
Because cmd_mkimage is used in various subdirectories,
it seems reasonable to define it in scripts/Makefile.lib.
Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com>
Kbuild brought about many advantages for us but a significant
performance regression was reported by Simon Glass.
After some discussions and analysis, it turned out
its main cause is in $(call cc-option,...).
Historically, U-Boot parses all config.mk
(arch/*/config.mk and board/*/config.mk)
every time descending into subdirectories.
That means cc-options are evaluated over and over again.
$(call cc-option,...) is useful but costly.
So we want to evaluate them only in ./Makefile
and spl/Makefile and export compiler flags.
This commit changes the build system as follows:
- Modify scripts/Makefile.build to not include config.mk
Instead, add $(PLATFORM_CPPFLAGS) to asflags-y, ccflags-y,
cppflags-y.
- Export many variables
Going forward, Kbuild will not parse config.mk files
when it descends into subdirectories.
If we want to set variables in config.mk and use them
in subdirectories, they must be exported.
This is the list of variables to get exported:
PLATFORM_CPPFLAGS
CPUDIR
BOARDDIR
OBJCOPYFLAGS
LDFLAGS
LDFLAGS_FINAL
(used in nand_spl/board/*/*/Makefile)
CONFIG_STANDALONE_LOAD_ADDR
(used in examples/standalone/Makefile)
SYM_PREFIX
(used in examples/standalone/Makefile)
RELFLAGS
(used in examples/standalone/Makefile)
- Delete CPPFLAGS
This variable has been replaced with PLATFORM_CPPFLAGS
- Copy gcclibdir from example/standalone/Makefile
to arch/sparc/config.mk
The reference in CONFIG_STANDALONE_LOAD_ADDR must be
resolved before it is exported.
Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com>
Reported-by: Simon Glass <sjg@chromium.org>
Acked-by: Simon Glass <sjg@chromium.org>
Tested-by: Simon Glass <sjg@chromium.org> [on Sandbox]
Tested-by: Stephen Warren <swarren@nvidia.com> [on Tegra]
Unlike Linux Kernel, U-Boot historically had *.dts files under
board/$(VENDOR)/dts/ and *.dtsi files under arch/$(ARCH)/dts/.
I think arch/$(ARCH)/dts dicretory is a better location
to store both *.dts and *.dtsi files.
For example, before this commit, board/xilinx/dts directory
had both Microblaze dts (microblaze-generic.dts) and
ARM dts (zynq-*.dts), which are totally unrelated.
This commit moves *.dts to arch/$(ARCH)/dts/ directories,
allowing us to describe nicely mutiple DTBs generation in the next commit.
Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com>
Useful rules in scripts/Makefile.lib allows us to easily
generate a device tree blob and wrap it in assembly code.
We do not need to parse a linker script to get output format and arch.
This commit deletes ./u-boot.dtb since it is a copy of dts/dt.dtb.
Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com>
Now we are ready to switch over to real Kbuild.
This commit disables temporary scripts:
scripts/{Makefile.build.tmp, Makefile.host.tmp}
and enables real Kbuild scripts:
scripts/{Makefile.build,Makefile.host,Makefile.lib}.
This switch is triggered by the line in scripts/Kbuild.include
-build := -f $(if $(KBUILD_SRC),$(srctree)/)scripts/Makefile.build.tmp obj
+build := -f $(if $(KBUILD_SRC),$(srctree)/)scripts/Makefile.build obj
We need to adjust some build scripts for U-Boot.
But smaller amount of modification is preferable.
Additionally, we need to fix compiler flags which are
locally added or removed.
In Kbuild, it is not allowed to change CFLAGS locally.
Instead, ccflags-y, asflags-y, cppflags-y,
CFLAGS_$(basetarget).o, CFLAGS_REMOVE_$(basetarget).o
are prepared for that purpose.
Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com>
Tested-by: Gerhard Sittig <gsi@denx.de>
This commit imports build scripts from Linux Kernel v3.13
as they are.
I know they include some trailing spaces
but I am intentionally keeping them untouched.
Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com>
Saket Sinha
Simon Glass
Masahiro Yamada
Pavel Machek
Masahiro Yamada