linux-toradex.git/arch/powerpc/boot/wrapper, branch v3.4.73

powerpc/ps3: Do not adjust the wrapper load address

2012-03-21T00:16:13+00:00

Commit c55aef0e5bc6 "powerpc/boot: Change the load address for the wrapper
to fit the kernel" adjusted the laod address if the uncompressed kernel
was too large.  Ps3 does not compress the kernel and uses a different
linker script, so do not adjust the load address in that case.

fixes this build error:

powerpc64-linux-ld: section .text loaded at [0000000000e00000,0000000000e0721b] overlaps section .kernel:dtb loaded at [0000000000e00000,0000000000e0066f]

Signed-off-by: Stephen Rothwell 
Signed-off-by: Benjamin Herrenschmidt

powerpc/boot: Change the WARN to INFO for boot wrapper overlap message

2011-12-21T20:09:25+00:00

commit c55aef0e5bc6 ("powerpc/boot: Change the load address
for the wrapper to fit the kernel") introduced a WARNING to
inform the user that the uncompressed kernel would overlap
the boot uncompressing wrapper code. Change it to an INFO.

I initially thought, this would be a 'WARNING' for the those
boards, where the link_address should be fixed, so that the
user can take actions accordingly.

Changing the same to INFO.

Signed-off-by: Suzuki K. Poulose 
Signed-off-by: Josh Boyer

powerpc/boot: Change the load address for the wrapper to fit the kernel

2011-12-20T15:22:56+00:00

The wrapper code which uncompresses the kernel in case of a 'ppc' boot
is by default loaded at 0x00400000 and the kernel will be uncompressed
to fit the location 0-0x00400000. But with dynamic relocations, the size
of the kernel may exceed 0x00400000(4M). This would cause an overlap
of the uncompressed kernel and the boot wrapper, causing a failure in
boot.

The message looks like :

   zImage starting: loaded at 0x00400000 (sp: 0x0065ffb0)
   Allocating 0x5ce650 bytes for kernel ...
   Insufficient memory for kernel at address 0! (_start=00400000, uncompressed size=00591a20)

This patch shifts the load address of the boot wrapper code to the next
higher MB, according to the size of  the uncompressed vmlinux.

With the patch, we get the following message while building the image :

 WARN: Uncompressed kernel (size 0x5b0344) overlaps the address of the wrapper(0x400000)
 WARN: Fixing the link_address of wrapper to (0x600000)

Signed-off-by: Suzuki K. Poulose 
Signed-off-by: Josh Boyer

Merge remote-tracking branch 'jwb/next' into next

2011-12-16T00:24:25+00:00

Conflicts:
	arch/powerpc/platforms/40x/ppc40x_simple.c

powerpc/47x: Add support for the new IBM currituck platform

2011-12-09T12:51:40+00:00

Based on original work by David 'Shaggy' Kleikamp.

Signed-off-by: Tony Breeds 
Signed-off-by: Josh Boyer

powerpc: Add support for OpenBlockS 600

2011-12-08T03:22:52+00:00

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

powerpc: Call gzip with -n

2011-05-19T04:30:40+00:00

The timestamps recorded in the .gz files add no value.

Cc: Benjamin Herrenschmidt 
Cc: Paul Mackerras 
Cc: linuxppc-dev@lists.ozlabs.org
Signed-off-by: Michal Marek 
Signed-off-by: Benjamin Herrenschmidt

powerpc/boot: Add an ePAPR compliant boot wrapper

2011-04-20T06:59:21+00:00

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 
Signed-off-by: Michael Ellerman 
Signed-off-by: Benjamin Herrenschmidt

powerpc/boot: Allow building the zImage wrapper as a relocatable ET_DYN

2011-04-20T06:59:20+00:00

This patch adds code, linker script and makefile support to allow
building the zImage wrapper around the kernel as a position independent
executable.  This results in an ET_DYN instead of an ET_EXEC ELF output
file, which can be loaded at any location by the firmware and will
process its own relocations to work correctly at the loaded address.

This is of interest particularly since the standard ePAPR image format
must be an ET_DYN (although this patch alone is not sufficient to
produce a fully ePAPR compliant boot image).

Note for now we don't enable building with -pie for anything.

Signed-off-by: Paul Mackerras 
Signed-off-by: David Gibson 
Signed-off-by: Michael Ellerman 
Signed-off-by: Benjamin Herrenschmidt

powerpc/4xx: Simple platform for the ISS 4xx simulator

2010-05-05T15:11:56+00:00

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  
Signed-off-by: Dave Kleikamp 
Signed-off-by: Josh Boyer