Commit Graph

166 Commits

Author SHA1 Message Date
Matthew McClintock 0090e02b94 powerpc: Fix build dependencies for c files requiring libfdt.h
Several files in obj-plat depend on libfdt header file. Sometimes
when building one can see the following issue. This patch adds
libfdt as dependency to those object files

| In file included from arch/powerpc/boot/treeboot-iss4xx.c:33:0:
| arch/powerpc/boot/libfdt.h:854:1: error: unterminated comment
| In file included from arch/powerpc/boot/treeboot-iss4xx.c:33:0:
| arch/powerpc/boot/libfdt.h:1:0: error: unterminated #ifndef
|   BOOTCC  arch/powerpc/boot/inffast.o
| make[1]: *** [arch/powerpc/boot/treeboot-iss4xx.o] Error 1
| make[1]: *** Waiting for unfinished jobs....
|   BOOTCC  arch/powerpc/boot/inflate.o
| make: *** [uImage] Error 2
| ERROR: oe_runmake failed
| ERROR: Function failed: do_compile (see /srv/home/pokybuild/yocto-autobuilder/yocto-slave/p1022ds/build/build/tmp/work/p1022ds-poky-linux-gnuspe/linux-qoriq-sdk-3.0.34-r5/temp/log.do_compile.2167 for further information)
NOTE: recipe linux-qoriq-sdk-3.0.34-r5: task do_compile: Failed

Signed-off-by: Matthew McClintock <msm@freescale.com>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2012-09-07 11:44:27 +10:00
Paul Gortmaker b048b4e17c powerpc: remove Wind River SBC8560 support
This reference board dates back to 2004, and is largely a legacy
EOL product.  The MPC8560 is a pre e500v2 CPU.  The SBC8548 is
a more modern, better e500v2 target for people to use as a
reference board with today's kernels, should they require one.

Removing support for it will also allow us to remove some
sbc8560 specific quirk handling in 8250 UART code, and some
MTD mapping support.

Cc: David Woodhouse <David.Woodhouse@intel.com>
Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com>
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
2012-07-10 07:07:21 -05:00
Tony Breeds b81f18e55e powerpc/boot: Only build board support files when required.
Currently we build all board files regardless of the final zImage
target.  This is sub-optimal (in terms on compilation) and leads to
problems in one platform needlessly causing failures for other
platforms.

Use the Kconfig variables to selectively construct this board files to
build.

Signed-off-by: Tony Breeds <tony@bakeyournoodle.com>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2012-07-03 14:14:37 +10:00
Stephen Rothwell 1b041885ae powerpc: Remove the remaining CONFIG_PPC_ISERIES pieces
Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2012-03-21 11:16:12 +11:00
Zhao Chenhui 0d4fdd321c powerpc/85xx: Refactor mpc8548cds device tree
* Create mpc8548cds.dtsi
* Move lbc, soc and pci0 nodes to mpc8548cds_32b.dtsi
* Change cuImage.mpc8548cds to cuImage.mpc8548cds_32b
* Rename mpc8548cds.dts to mpc8548cds_32b.dts

Signed-off-by: Zhao Chenhui <chenhui.zhao@freescale.com>
Signed-off-by: Li Yang <leoli@freescale.com>
Signed-off-by: Timur Tabi <timur@freescale.com>
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
2012-03-16 15:58:21 -05:00
Linus Torvalds c63dbbd526 Merge branch 'kbuild' of git://git.kernel.org/pub/scm/linux/kernel/git/mmarek/kbuild
* 'kbuild' of git://git.kernel.org/pub/scm/linux/kernel/git/mmarek/kbuild:
  Kbuild: Use dtc's -d (dependency) option
  dtc: Implement -d option to write out a dependency file
  kbuild: Fix comment in Makefile.lib
  scripts/genksyms: clean lex/yacc generated files
  kbuild: Correctly deal with make options which contain an "s"
2012-01-16 14:34:54 -08:00
Stephen Warren 7c43185138 Kbuild: Use dtc's -d (dependency) option
This hooks dtc into Kbuild's dependency system.

Thus, for example, "make dtbs" will rebuild tegra-harmony.dtb if only
tegra20.dtsi has changed yet tegra-harmony.dts has not. The previous
lack of this feature recently caused me to have very confusing "git
bisect" results.

For ARM, it's obvious what to add to $(targets). I'm not familiar enough
with other architectures to know what to add there. Powerpc appears to
already add various .dtb files into $(targets), but the other archs may
need something added to $(targets) to work.

Signed-off-by: Stephen Warren <swarren@nvidia.com>
Acked-by: Shawn Guo <shawn.guo@linaro.org>
[mmarek: Dropped arch/c6x part to avoid merging commits from the middle
of the merge window]
Signed-off-by: Michal Marek <mmarek@suse.cz>
2012-01-15 00:04:35 +01:00
Benjamin Herrenschmidt 1e7342e778 Merge remote-tracking branch 'jwb/next' into next
Conflicts:
	arch/powerpc/platforms/40x/ppc40x_simple.c
2011-12-16 11:24:25 +11:00
Tony Breeds 228d550533 powerpc/47x: Add support for the new IBM currituck platform
Based on original work by David 'Shaggy' Kleikamp.

Signed-off-by: Tony Breeds <tony@bakeyournoodle.com>
Signed-off-by: Josh Boyer <jwboyer@gmail.com>
2011-12-09 07:51:40 -05:00
Benjamin Herrenschmidt 11eab297f5 powerpc: Add support for OpenBlockS 600
So I've had one of these for a while and it looks like the vendor never
bothered submitting the support upstream.

This adds it using ppc40x_simple and provides a device-tree.

There are some changes to the boot wrapper because the way u-boot works
on this thing, it seems to expect a multipart image with the kernel,
initrd and dtb in it.

The USB support is missing as it needs the yet unmerged driver for
the DWC OTG part and the GPIOs may need further definition in the dts.

Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2011-12-08 14:22:52 +11:00
Benjamin Herrenschmidt 55190f8878 powerpc: Add skeleton PowerNV platform
This adds a skeletton for the new Power "Non Virtualized"
platform which will be used by machines supporting running
without an hypervisor, for example in order to run KVM.

These machines will be using a new firmware called OPAL
for which the support will be provided by later patches.

The PowerNV platform is intended to be also usable under
the BML environment used internally for early CPU bringup
which is why the code also supports using RTAS instead of
OPAL in various places.

Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2011-09-20 15:53:25 +10:00
Matthew McClintock 7392769365 powerpc: Fix build dependencies for epapr.c which needs libfdt.h
Currently, the build can (very rarely) fail to build because libfdt.h has
not been created or is in the process of being copied.

Signed-off-by: Matthew McClintock <msm@freescale.com>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2011-09-20 09:19:44 +10:00
Michal Marek 31355403db powerpc: Use the deterministic mode of ar
Signed-off-by: Michal Marek <mmarek@suse.cz>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2011-05-19 14:30:40 +10:00
David Gibson 6c5b59b913 powerpc/boot: Add an ePAPR compliant boot wrapper
This is a first cut at making bootwrapper code which will
produce a zImage compliant with the requirements set down
by ePAPR.

This is a very simple bootwrapper, taking the device tree
blob supplied by the ePAPR boot program and passing it on
to the kernel. It builds on the earlier patch to build a
relocatable ET_DYN zImage to meet the other ePAPR image
requirements.

For good measure we have some paranoid checks which will
generate warnings if some of the ePAPR entry condition
guarantees are not met.

Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
Signed-off-by: Michael Ellerman <michael@ellerman.id.au>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2011-04-20 16:59:21 +10:00
Ben Hutchings 4d9ef89dee powerpc/boot/dts: Install dts from the right directory
The dts-installed variable is initialised using a wildcard path that
will be expanded relative to the build directory.  Use the existing
variable dtstree to generate an absolute wildcard path that will work
when building in a separate directory.

Reported-by: Gerhard Pircher <gerhard_pircher@gmx.net>
Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
Tested-by: Gerhard Pircher <gerhard_pircher@gmx.net> [against 2.6.32]
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2011-01-21 14:08:38 +11:00
Dirk Brandewie 6384934062 of/powerpc: Use generic rule to build dtb's
Modify arch/powerpc/boot/Makefile to use dtc command in
scripts/Makefile.lib

Signed-off-by: Dirk Brandewie <dirk.brandewie@gmail.com>
Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
2010-12-23 14:59:49 -07:00
Paul Mackerras 97bb63e496 powerpc/boot: Remove addRamdisk.c since it is now unused
It was used in the dim distant past for adding initrds to images
for legacy iSeries, but it's not even used for that now that we
have initramfs.  So remove it.

Signed-off-by: Paul Mackerras <paulus@samba.org>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2010-06-15 15:02:32 +10:00
Torez Smith b4e8c8dd84 powerpc/4xx: Simple platform for the ISS 4xx simulator
This is a trivial 4xx plaform that uses the new simple bsp from
Josh and is handy to use in simulators such as ISS or even Mambo
who don't properly implement most of the actual devices in the
SoC but really only the core.

Signed-off-by: Torez Smith  <lnxtorez@linux.vnet.ibm.com>
Signed-off-by: Dave Kleikamp <shaggy@linux.vnet.ibm.com>
Signed-off-by: Josh Boyer <jwboyer@linux.vnet.ibm.com>
2010-05-05 11:11:56 -04:00
Corey Minyard 58706ef96f powerpc: Add a new zImage for maple using a different link address
The maple platform failed to load because it's firmware could not take a
link address of 0x4000000.  A new platform type with a link address of
0x400000 had to be created for the maple.

Signed-off-by: Corey Minyard <cminyard@mvista.com>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2010-04-07 14:12:36 +10:00
Benjamin Herrenschmidt 6846ee5ca6 zlib: Fix build of powerpc boot wrapper
Commit ac4c2a3bbe broke the build
of all powerpc boot wrappers.

It attempts to add an include of autoconf.h but used the wrong
path for it. It also adds -D__KERNEL__ to our boot wrapper, both
things that we pretty much didn't do on purpose so far.

We want our boot wrapper to remain independent enough of the kernel
for various reasons, one of them being that you can "wrap" an existing
kernel at distro install time which allows to ship one kernel image
and a set of boot wrappers for different platforms, the wrappers
don't have to be built out of the same kernel build tree.

It's also incorrect to do what the patch does in our boot environment
since we may not have a proper alignment exception handler which means
we may not be able to fixup the few cases where an unaligned access will
need SW emulation (depends on the core variant, could be when crossing
page or segment boundaries for example).

This patch fixes it by putting the old code back in and using the
new "fancy" variant only when CONFIG_HAVE_EFFICIENT_UNALIGNED_ACCESS
is set, which happens not to be set on powerpc since we don't include
autoconf.h. It also reverts the changes to our boot wrapper Makefile.

This means that x86 should, afaik, keep the optimisations since its
boot wrapper does include autoconf.h and define __KERNEL__ (though I
doubt they make that much different outside of slow embedded processors).

Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2010-01-13 16:13:39 -08:00
Joakim Tjernlund ac4c2a3bbe zlib: optimize inffast when copying direct from output
JFFS2 uses lesser compression ratio and inflate always ends up in "copy
direct from output" case.

This patch tries to optimize the direct copy procedure.  Uses
get_unaligned() but only in one place.

The copy loop just above this one can also use this optimization, but I
havn't done so as I have not tested if it is a win there too.

On my MPC8321 this is about 17% faster on my JFFS2 root FS than the
original.

[akpm@linux-foundation.org: coding-style fixes]
Signed-off-by: Joakim Tjernlund <Joakim.Tjernlund@transmode.se>
Cc: Roel Kluin <roel.kluin@gmail.com>
Cc: Richard Purdie <rpurdie@rpsys.net>
Cc: David Woodhouse <dwmw2@infradead.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2010-01-11 09:34:04 -08:00
Albert Herranz 6cdd24179d powerpc: wii: bootwrapper bits
Add support for the Nintendo Wii video game console to the powerpc
bootwrapper.

dtbImage.wii is a wrapped image that contains a flat device tree,
an entry point compatible with the Homebrew Channel and BootMii,
and an optional initrd.

Signed-off-by: Albert Herranz <albert_herranz@yahoo.es>
Acked-by: Segher Boessenkool <segher@kernel.crashing.org>
Acked-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
2009-12-12 22:24:29 -07:00
Albert Herranz b68a24bc78 powerpc: gamecube: bootwrapper bits
Add support for the Nintendo GameCube video game console to the powerpc
bootwrapper.

dtbImage.gamecube is a wrapped image that contains a flat device tree,
an entry point compatible with SDload, and an optional initrd.

Signed-off-by: Albert Herranz <albert_herranz@yahoo.es>
Acked-by: Segher Boessenkool <segher@kernel.crashing.org>
Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
2009-12-12 22:24:26 -07:00
Albert Herranz 26054c9541 powerpc: gamecube/wii: usbgecko bootwrapper console support
Add support for using the USB Gecko adapter as a bootwrapper console on
the Nintendo GameCube and Wii video game consoles.
The USB Gecko is a 3rd party memory card interface adapter that provides
a EXI (External Interface) to USB serial converter.

Signed-off-by: Albert Herranz <albert_herranz@yahoo.es>
Acked-by: Segher Boessenkool <segher@kernel.crashing.org>
Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
2009-12-12 22:24:26 -07:00
Tiejun Chen c5b20d3926 powerpc/405ex: support cuImage via included dtb
To support cuImage, we need to initialize the required sections and
ensure that it is built.

Signed-off-by: Tiejun Chen <tiejun.chen@windriver.com>
Signed-off-by: Josh Boyer <jwboyer@linux.vnet.ibm.com>
2009-08-31 09:23:22 -04:00
Solomon Peachy 0cdf50a7c6 powerpc/40x: Add support for the ESTeem 195E (PPC405EP) SBC
This patch adds support for the ESTeem 195E Hotfoot SBC.

There are several variants of the SBC deployed, single/dual
ethernet+serial, and also 4MB/8MB flash variations.  In the interest of
having a single kernel image boot on all boards, the cuboot shim detects
the differences and mangles the DTS tree appropriately.

With the exception of the CF interface that was never populated on
production boards, this code/DTS supports all boardpop options.

Signed-off-by: Solomon Peachy <solomon@linux-wlan.com>
Signed-off-by: Josh Boyer <jwboyer@linux.vnet.ibm.com>
2009-08-31 09:15:51 -04:00
Linus Torvalds 662f11cf2a Merge branch 'merge' of git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc
* 'merge' of git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc:
  powerpc: Fix PCI ROM access
  powerpc/pseries: Really fix the oprofile CPU type on pseries
  serial/nwpserial: Fix wrong register read address and add interrupt acknowledge.
  powerpc/cell: Make ptcal more reliable
  powerpc: Allow mem=x cmdline to work with 4G+
  powerpc/mpic: Fix incorrect allocation of interrupt rev-map
  powerpc: Fix oprofile sampling of marked events on POWER7
  powerpc/iseries: Fix pci breakage due to bad dma_data initialization
  powerpc: Fix mktree build error on Mac OS X host
  powerpc/virtex: Fix duplicate level irq events.
  powerpc/virtex: Add uImage to the default images list
  powerpc/boot: add simpleImage.* to clean-files list
  powerpc/8xx: Update defconfigs
  powerpc/embedded6xx: Update defconfigs
  powerpc/86xx: Update defconfigs
  powerpc/85xx: Update defconfigs
  powerpc/83xx: Update defconfigs
  powerpc/fsl_soc: Remove mpc83xx_wdt_init, again
2009-05-15 08:05:02 -07:00
Grant Likely be68751878 powerpc/boot: add simpleImage.* to clean-files list
Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
2009-05-14 10:23:09 -06:00
David Gibson 9fffb55f66 Move dtc and libfdt sources from arch/powerpc/boot to scripts/dtc
The powerpc kernel always requires an Open Firmware like device tree
to supply device information.  On systems without OF, this comes from
a flattened device tree blob.  This blob is usually generated by dtc,
a tool which compiles a text description of the device tree into the
flattened format used by the kernel.  Sometimes, the bootwrapper makes
small changes to the pre-compiled device tree blob (e.g. filling in
the size of RAM).  To do this it uses the libfdt library.

Because these are only used on powerpc, the code for both these tools
is included under arch/powerpc/boot (these were imported and are
periodically updated from the upstream dtc tree).

However, the microblaze architecture, currently being prepared for
merging to mainline also uses dtc to produce device tree blobs.  A few
other archs have also mentioned some interest in using dtc.
Therefore, this patch moves dtc and libfdt from arch/powerpc into
scripts, where it can be used by any architecture.

The vast bulk of this patch is a literal move, the rest is adjusting
the various Makefiles to use dtc and libfdt correctly from their new
locations.

Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-05-02 16:52:26 -07:00
Gerhard Pircher 8f23735d8f powerpc/amigaone: Bootwrapper and serial console support for AmigaOne
This adds the bootwrapper for the cuImage target and a compatible property
check for "pnpPNP,501" to the generic serial console support code.
The default link address for the cuImage target is set to 0x800000. This
allows to boot the kernel with AmigaOS4's second level bootloader, which
always loads a uImage at 0x500000.

Signed-off-by: Gerhard Pircher <gerhard_pircher@gmx.net>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2009-02-11 16:00:09 +11:00
Grant Likely bfee95bb83 powerpc/5200: Add support for the Media5200 board from Freescale
This patch adds board support for the Media5200 platform.  Changes are:
- add the media5200 device tree
- add the media5200 platform support code and cascaded interrupt controller
- add media5200 to the build targets.

Note: this patch also includes a minor tweak to the lite5200(b) target
images list to add the .dtb files to the image list.

Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
2009-02-04 13:39:17 -07:00
Grant Likely 29f1aff2cc powerpc: Copy bootable images in the default install script
This patch makes the default install script (arch/powerpc/boot/install.sh)
copy the bootable image files into the install directory.  Before this
patch only the vmlinux image file was copied.

This patch makes the default 'make install' command useful for embedded
development when $(INSTALL_PATH) is set in the environment.

As a side effect, this patch changes the calling convention of the
install.sh script.  Instead of a single 5th parameter, the script is now
passed a list of all the target images stored in the $(image-y) Makefile
variable.  This should be backwards compatible with existing install scripts
since it just adds additional arguments and does not change existing ones.

Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
Acked-by: Josh Boyer <jwboyer@linux.vnet.ibm.com>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2009-01-08 16:25:09 +11:00
Nick Andrew 2a94739c70 trivial: Fix misspelling of "firmware" in powerpc Makefile
Fix misspelling of "firmware" in powerpc Makefile

It's spelled "firmware".

Signed-off-by: Nick Andrew <nick@nick-andrew.net>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2009-01-06 11:28:09 +01:00
Benjamin Krill def434c231 powerpc/cell: add QPACE as a separate Cell platform
Since the QPACE (Chromodynamics Parallel Computing on the
Cell Broadband Engine) platform doesn't use a iommu, doesn't
have PCI devices and a MPIC much lesser setup and
configurations are needed. So far all devices are detected
as OF device. A notifier function is used to set the dma_ops
for the of_platform bus. Further this patch splits the
PPC_CELL_NATIVE into PPC_CELL_COMMON which are parts that are
shared with the QPACE platform and the rest.

Signed-off-by: Benjamin Krill <ben@codiert.org>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2008-12-22 22:19:19 +01:00
Josh Boyer 9f3eefc4f9 powerpc/40x: Add proper BOOTCFLAGS for cuboot-acadia
The cuboot-acadia.c wrapper can cause assembler errors on some
toolchains due to the lack of the proper BOOTCFLAGS.  This adds
the proper flags for the file.

Signed-off-by: Josh Boyer <jwboyer@linux.vnet.ibm.com>
2008-12-11 07:34:22 -05:00
Grant Likely a4292d7ae6 powerpc: Add missing cuImage.initrd.% target
This target is needed to build cuImages with an embedded ramdisk image.

Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2008-10-21 15:17:48 +11:00
Josh Boyer 94c73a8f97 powerpc/40x: Add cuboot wrapper for Acadia board
This adds a cuboot wrapper for the AMCC PowerPC 405EZ Acadia board.  The
clocking code is derived from U-Boot, originally written by Stefan Roese.

Signed-off-by: Josh Boyer <jwboyer@linux.ibm.com>
2008-10-17 10:31:19 -04:00
Benjamin Herrenschmidt 6dc6472581 Merge commit 'origin'
Manual fixup of conflicts on:

	arch/powerpc/include/asm/dcr-regs.h
	drivers/net/ibm_newemac/core.h
2008-10-15 11:31:54 +11:00
Josh Boyer 32dde0f975 powerpc: Holly board needs dtbImage target
One of the changes in the bootwrapper makefile introduced the dtbImage
targets for boards that need a simple zImage with a DTB embedded in
them (595be948cc, "[POWERPC]
bootwrapper: Build multiple cuImages").  When this was done, it broke
booting on the Holly board as the zImage.holly wrapper did not get the
DTB embedded properly.

This changes the target for the Holly board to a dtbImage so that the
wrapper includes the vmlinux, wrapper bits, and DTB.

Signed-off-by: Josh Boyer <jwboyer@linux.vnet.ibm.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>
2008-09-17 09:14:42 -07:00
Paul Mackerras 549e8152de powerpc: Make the 64-bit kernel as a position-independent executable
This implements CONFIG_RELOCATABLE for 64-bit by making the kernel as
a position-independent executable (PIE) when it is set.  This involves
processing the dynamic relocations in the image in the early stages of
booting, even if the kernel is being run at the address it is linked at,
since the linker does not necessarily fill in words in the image for
which there are dynamic relocations.  (In fact the linker does fill in
such words for 64-bit executables, though not for 32-bit executables,
so in principle we could avoid calling relocate() entirely when we're
running a 64-bit kernel at the linked address.)

The dynamic relocations are processed by a new function relocate(addr),
where the addr parameter is the virtual address where the image will be
run.  In fact we call it twice; once before calling prom_init, and again
when starting the main kernel.  This means that reloc_offset() returns
0 in prom_init (since it has been relocated to the address it is running
at), which necessitated a few adjustments.

This also changes __va and __pa to use an equivalent definition that is
simpler.  With the relocatable kernel, PAGE_OFFSET and MEMORY_START are
constants (for 64-bit) whereas PHYSICAL_START is a variable (and
KERNELBASE ideally should be too, but isn't yet).

With this, relocatable kernels still copy themselves down to physical
address 0 and run there.

Signed-off-by: Paul Mackerras <paulus@samba.org>
2008-09-15 11:08:38 -07:00
Hugh Dickins 4ff23fa930 powerpc: Fix rare boot build breakage
A make -j20 powerpc kernel build broke a couple of months ago saying:
In file included from arch/powerpc/boot/gunzip_util.h:13,
                 from arch/powerpc/boot/prpmc2800.c:21:
arch/powerpc/boot/zlib.h:85: error: expected ‘:’, ‘,’, ‘;’, ‘}’ or ‘__attribute__’ before ‘*’ token
arch/powerpc/boot/zlib.h:630: warning: type defaults to ‘int’ in declaration of ‘Byte’
arch/powerpc/boot/zlib.h:630: error: expected ‘;’, ‘,’ or ‘)’ before ‘*’ token

It happened again yesterday: too rare for me to confirm the fix, but
it looks like the list of dependants on gunzip_util.h was incomplete.

Signed-off-by: Hugh Dickins <hugh@veritas.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>
2008-09-08 15:55:35 +10:00
Adrian Bunk 542a3a3bc9 powerpc/boot: Change spaces to tabs
For C code spaces versus tabs is just a religious issue,
but for Makefiles it actually matters.

This patch fixes he following errors:
/home/bunk/linux/kernel-2.6/git/linux-2.6/arch/powerpc/boot/Makefile:166: *** missing separator.  Stop.
/home/bunk/linux/kernel-2.6/git/linux-2.6/arch/powerpc/boot/Makefile:171: *** missing separator.  Stop.

Since this was inside an ifdef DTC_GENPARSER it was not a problem unless
someone wanted to regenerate the shipped generated files.

Signed-off-by: Adrian Bunk <bunk@kernel.org>
Acked-by: David Gibson <david@gibson.dropbear.id.au>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2008-07-22 10:39:35 +10:00
Benjamin Herrenschmidt 930074b6b9 Merge commit 'jwb/jwb-next' 2008-07-15 11:54:57 +10:00
Benjamin Herrenschmidt 11c2d8174e Merge commit 'origin/HEAD' into test-merge
Manual fixup of include/asm-powerpc/pgtable-ppc64.h
2008-07-14 14:29:49 +10:00
Grant Likely c356aa456e powerpc/bootwrapper: Allow user to specify additional default targets
It is inconvenient to add additional default targets to the bootwrapper
Makefile for each new board supported which just needs a different dts
file.  This change allows the defconfig to specify additional build
targets.

Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
Acked-by: Josh Boyer <jwboyer@linux.vnet.ibm.com>
2008-07-09 09:41:52 -06:00
John Linn d58577d8f3 powerpc/virtex: Fix booting of Xilinx FPGAs with 16550 for 405 and 440
The following changes add processing to initialize the Xilinx 16550 UART
in the boot wrapper for Virtex targets without firmware.  Normally the
boot wrapper assumes that the serial port has already been initialized by
firmware.

The wrapper was also modified to add the 440 build.

Signed-off-by: John Linn <john.linn@xilinx.com>
Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
2008-07-04 00:58:59 -06:00
John Linn 5d1a04110b powerpc/bootwrapper: update for initrd with simpleImage
This change to the makefile corrects the build of a simpleImage with initrd.

Signed-off-by: John Linn <john.linn@xilinx>
Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
2008-07-01 14:17:18 -06:00
Kumar Gala 9d4ae9fc92 powerpc/bootwrapper: Pad .dtb by default
Since most bootloaders or wrappers tend to update or add some information
to the .dtb they a handled they need some working space to do that in.

By default add 1K of padding via a default setting of DTS_FLAGS.

Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
Signed-off-by: Paul Mackerras <paulus@samba.org>
2008-07-01 11:28:53 +10:00
Paul Mackerras e9a4b6a3f6 Merge branch 'linux-2.6' 2008-06-30 10:16:50 +10:00
Paul Mackerras 441dbb500b Merge branch 'next' of master.kernel.org:/pub/scm/linux/kernel/git/jwboyer/powerpc-4xx 2008-06-30 09:57:05 +10:00