xtensa: boot: don't add include-dirs

Drop the -I<include-dir> options to prevent build warnings since there
is not boot/include directory:

cc1: warning: arch/xtensa/boot/include: No such file or di

xtensa: boot: don't add include-dirs

Drop the -I<include-dir> options to prevent build warnings since there
is not boot/include directory:

cc1: warning: arch/xtensa/boot/include: No such file or directory [-Wmissing-include-dirs]

Fixes: 437374e9a950 ("restore arch/{ppc/xtensa}/boot cflags")
Fixes: 4bedea945451 ("xtensa: Architecture support for Tensilica Xtensa Part 2")
Signed-off-by: Randy Dunlap <[email protected]>
Cc: Chris Zankel <[email protected]>
Cc: Max Filippov <[email protected]>
Message-Id: <[email protected]>
Signed-off-by: Max Filippov <[email protected]>

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xtensa: move CONFIG_CPU_*_ENDIAN defines to Kconfig

Move the definition of CONFIG_CPU_*_ENDIAN to Kconfig, the best place
for CONFIG options.

I slightly simplified the test code. You can use the -P

xtensa: move CONFIG_CPU_*_ENDIAN defines to Kconfig

Move the definition of CONFIG_CPU_*_ENDIAN to Kconfig, the best place
for CONFIG options.

I slightly simplified the test code. You can use the -P option to suppress
linemarker generation. The grep command is unneeded.

$ echo __XTENSA_EB__ | xtensa-linux-gcc -E -
# 1 "<stdin>"
# 1 "<built-in>"
# 1 "<command-line>"
# 1 "<stdin>"
1

$ echo __XTENSA_EB__ | xtensa-linux-gcc -E -P -
1

Signed-off-by: Masahiro Yamada <[email protected]>
Message-Id: <[email protected]>
Signed-off-by: Max Filippov <[email protected]>

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xtensa: add uImage and xipImage to targets

uImage and xipImage are always rebuilt in the xtensa kernel build
process. Add them to 'targets' to avoid that.

Reviewed-by: Masahiro Yamada <masahiroy@ke

xtensa: add uImage and xipImage to targets

uImage and xipImage are always rebuilt in the xtensa kernel build
process. Add them to 'targets' to avoid that.

Reviewed-by: Masahiro Yamada <[email protected]>
Signed-off-by: Max Filippov <[email protected]>

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xtensa: move vmlinux.bin[.gz] to boot subdirectory

vmlinux.bin and vmlinux.bin.gz are always rebuilt in the kernel build
process. Add them to 'targets' and move them to the boot subdirectory
where t

xtensa: move vmlinux.bin[.gz] to boot subdirectory

vmlinux.bin and vmlinux.bin.gz are always rebuilt in the kernel build
process. Add them to 'targets' and move them to the boot subdirectory
where their rules are. Update make rules that refer to them.

Reviewed-by: Masahiro Yamada <[email protected]>
Signed-off-by: Max Filippov <[email protected]>

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xtensa: remove meaningless export ccflags-y

arch/xtensa/boot/Makefile does not define ccflags-y at all.

Please do not export ccflags-y because it is meant to be effective
only in the current Makefi

xtensa: remove meaningless export ccflags-y

arch/xtensa/boot/Makefile does not define ccflags-y at all.

Please do not export ccflags-y because it is meant to be effective
only in the current Makefile.

Signed-off-by: Masahiro Yamada <[email protected]>
Message-Id: <[email protected]>
Signed-off-by: Max Filippov <[email protected]>

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xtensa: add XIP kernel support

XIP (eXecute In Place) kernel image is the image that can be run
directly from ROM, using RAM only for writable data.

XIP xtensa kernel differs from regular xtensa ke

xtensa: add XIP kernel support

XIP (eXecute In Place) kernel image is the image that can be run
directly from ROM, using RAM only for writable data.

XIP xtensa kernel differs from regular xtensa kernel in the following
ways:
- it has exception/IRQ vectors merged into text section. No vectors
relocation takes place at kernel startup.
- .data/.bss location must be specified in the kernel configuration,
its content is copied there in the _startup function.
- .init.text is merged with the rest of text and is executed from ROM.
- when MMU is used the virtual address where the kernel will be mapped
must be specified in the kernel configuration. It may be in the KSEG
or in the KIO, __pa macro is adjusted to be able to handle both.

Signed-off-by: Max Filippov <[email protected]>

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xtensa: add NOTES section to the linker script

This section collects all source .note.* sections together in the
vmlinux image. Without it .note.Linux section may be placed at address
0, while the r

xtensa: add NOTES section to the linker script

This section collects all source .note.* sections together in the
vmlinux image. Without it .note.Linux section may be placed at address
0, while the rest of the kernel is at its normal address, resulting in a
huge vmlinux.bin image that may not be linked into the xtensa Image.elf.

Cc: [email protected]
Signed-off-by: Max Filippov <[email protected]>

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kbuild: remove deprecated host-progs variable

The host-progs has been kept as an alias of hostprogs-y for a long time
(at least since the beginning of Git era), with the clear prompt:
Usage of hos

kbuild: remove deprecated host-progs variable

The host-progs has been kept as an alias of hostprogs-y for a long time
(at least since the beginning of Git era), with the clear prompt:
Usage of host-progs is deprecated. Please replace with hostprogs-y!

Enough time for the migration has passed.

Signed-off-by: Masahiro Yamada <[email protected]>
Acked-by: Max Filippov <[email protected]>

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xtensa: clean up bootable image build targets

Currently xtensa uses 'zImage' as a synonym of 'all', but in fact xtensa
supports three targets: 'Image' (ELF image with reset vector), 'zImage'
(compre

xtensa: clean up bootable image build targets

Currently xtensa uses 'zImage' as a synonym of 'all', but in fact xtensa
supports three targets: 'Image' (ELF image with reset vector), 'zImage'
(compressed redboot image) and 'uImage' (U-Boot image).
Provide separate 'Image', 'zImage' and 'uImage' make targets that only
build corresponding image type. Make 'all' build all images appropriate
for a platform.

Signed-off-by: Max Filippov <[email protected]>

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xtensa: don't use echo -e needlessly

-e is not needed to output strings without escape sequences. This breaks
big endian FSF build when the shell is dash, because its builtin echo
doesn't understand

xtensa: don't use echo -e needlessly

-e is not needed to output strings without escape sequences. This breaks
big endian FSF build when the shell is dash, because its builtin echo
doesn't understand '-e' switch and outputs it in the echoed string.

Reported-by: Guenter Roeck <[email protected]>
Signed-off-by: Max Filippov <[email protected]>
Signed-off-by: Chris Zankel <[email protected]>

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xtensa: use new common dtc rule

The current rules have the .dtb files build in a different directory
from the .dts files. This patch changes xtensa to use the generic dtb
rule which builds .dtb file

xtensa: use new common dtc rule

The current rules have the .dtb files build in a different directory
from the .dts files. This patch changes xtensa to use the generic dtb
rule which builds .dtb files in the same directory as the source .dts.

This requires moving parts of arch/xtensa/boot/Makefile into newly
created arch/xtensa/boot/dts/Makefile, and updating arch/xtensa/Makefile
to call the new Makefile.

Signed-off-by: Stephen Warren <[email protected]>
Signed-off-by: Chris Zankel <[email protected]>

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xtensa: don't try to build DTB when OF is disabled

Signed-off-by: Max Filippov <[email protected]>
Signed-off-by: Chris Zankel <[email protected]>

xtensa: add support for the XTFPGA boards

The Avnet LX60/LX110/LX200 board is an FPGA board that can be configured with
an Xtensa processor and an OpenCores Ethernet device.

Signed-off-by: Chris Za

xtensa: add support for the XTFPGA boards

The Avnet LX60/LX110/LX200 board is an FPGA board that can be configured with
an Xtensa processor and an OpenCores Ethernet device.

Signed-off-by: Chris Zankel <[email protected]>
Signed-off-by: Max Filippov <[email protected]>
Signed-off-by: Chris Zankel <[email protected]>

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xtensa: add device trees support

Device trees allow specification of hardware topology and device
parameters at runtime instead of hard-coding them in platform setup
code. This allows running single

xtensa: add device trees support

Device trees allow specification of hardware topology and device
parameters at runtime instead of hard-coding them in platform setup
code. This allows running single binary kernel on a range of compatible
boards.

New boot parameters tag BP_TAG_FDT is allocated and a pointer to flat
device tree is passed in it.

Note that current interrupt mapping scheme uses single cell for
interrupt identification. That means that IRQ numbers used in DTS must
be CPU internal IRQ numbers, not external. It is possible to extend
interrupt identification to two cells, and use second cell to tell
external IRQ numbers form internal. That would allow to use single DTS
on multiple boards with different mapping of external IRQ numbers.

Signed-off-by: Max Filippov <[email protected]>
Signed-off-by: Chris Zankel <[email protected]>

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xtensa: add U-Boot image support (uImage).

Signed-off-by: Max Filippov <[email protected]>
Signed-off-by: Chris Zankel <[email protected]>

xtensa: clean up boot make rules

- remove duplicate rules for binary and packed image
- use predefined macros for ld/objcopy/gzip
- remove build-id section from bootable elf image

Signed-off-by: Ma

xtensa: clean up boot make rules

- remove duplicate rules for binary and packed image
- use predefined macros for ld/objcopy/gzip
- remove build-id section from bootable elf image

Signed-off-by: Max Filippov <[email protected]>
Signed-off-by: Chris Zankel <[email protected]>

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xtensa: drop CONFIG_EMBEDDED_RAMDISK

Remove Kconfig entries, boot subdirectory, dependencies from other
boot-* Makefiles, and sections from ld scripts.

Remove stale redboot code that used to pass i

xtensa: drop CONFIG_EMBEDDED_RAMDISK

Remove Kconfig entries, boot subdirectory, dependencies from other
boot-* Makefiles, and sections from ld scripts.

Remove stale redboot code that used to pass initrd addresses in a3 and
a4 to _start.

Signed-off-by: Max Filippov <[email protected]>
Signed-off-by: Chris Zankel <[email protected]>

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xtensa: change to new flag variable

Replace EXTRA_CFLAGS with ccflags-y.

Signed-off-by: matt mooney <[email protected]>
Acked-by: WANG Cong <[email protected]>
Signed-off-by: Michal Marek <m

xtensa: change to new flag variable

Replace EXTRA_CFLAGS with ccflags-y.

Signed-off-by: matt mooney <[email protected]>
Acked-by: WANG Cong <[email protected]>
Signed-off-by: Michal Marek <[email protected]>

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kbuild: restore arch/{ppc/xtensa}/boot cflags

Commit 9a39e273d4df0560c724c5fe71f6314a0583ca2b removed the boot directory
addition to CFLAGS that was being used by the subdirectory builds. For the
o

kbuild: restore arch/{ppc/xtensa}/boot cflags

Commit 9a39e273d4df0560c724c5fe71f6314a0583ca2b removed the boot directory
addition to CFLAGS that was being used by the subdirectory builds. For the
other files, that patch set EXTRA_CFLAGS, but Makefile.build explicitly
sets that to empty as it is explicitly for a single directory only.
Append to KBUILD_CFLAGS instead.

Signed-off-by: Milton Miller <[email protected]>
Signed-off-by: Sam Ravnborg <[email protected]>

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kbuild: fix up CFLAGS usage

Only in very rare cases is it needed to change CFLAGS
outside of arch/*/Makefile.
Fix up all wrong cases - in most cases
the use of EXTRA_CFLAGS is the only thing needed.

kbuild: fix up CFLAGS usage

Only in very rare cases is it needed to change CFLAGS
outside of arch/*/Makefile.
Fix up all wrong cases - in most cases
the use of EXTRA_CFLAGS is the only thing needed.

Signed-off-by: Sam Ravnborg <[email protected]>

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[PATCH] xtensa: Removed local copy of zlib and fixed O= support

Removed an unnecessary local copy of zlib (sorry for the add'l traffic).
Fixed 'O=' support (thanks to Jan Dittmer for pointing it out

[PATCH] xtensa: Removed local copy of zlib and fixed O= support

Removed an unnecessary local copy of zlib (sorry for the add'l traffic).
Fixed 'O=' support (thanks to Jan Dittmer for pointing it out). Some minor
clean-ups in the make files.

Signed-off-by: Chris Zankel <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>
Signed-off-by: Linus Torvalds <[email protected]>

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[PATCH] xtensa: Architecture support for Tensilica Xtensa Part 2

The attached patches provides part 2 of an architecture implementation for the
Tensilica Xtensa CPU series.

Signed-off-by: Chris Zan

[PATCH] xtensa: Architecture support for Tensilica Xtensa Part 2

The attached patches provides part 2 of an architecture implementation for the
Tensilica Xtensa CPU series.

Signed-off-by: Chris Zankel <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>
Signed-off-by: Linus Torvalds <[email protected]>

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