linux-toradex.git/arch/sh/boot/compressed/misc.c, branch v3.10.41

sh: support XZ-compressed kernel.

2011-01-14T06:52:54+00:00

Follow the x86 change and wire up support for the XZ decompressor.

Signed-off-by: Paul Mundt

sh: Merge legacy and dynamic PMB modes.

2010-02-18T09:13:51+00:00

This implements a bit of rework for the PMB code, which permits us to
kill off the legacy PMB mode completely. Rather than trusting the boot
loader to do the right thing, we do a quick verification of the PMB
contents to determine whether to have the kernel setup the initial
mappings or whether it needs to mangle them later on instead.

If we're booting from legacy mappings, the kernel will now take control
of them and make them match the kernel's initial mapping configuration.
This is accomplished by breaking the initialization phase out in to
multiple steps: synchronization, merging, and resizing. With the recent
rework, the synchronization code establishes page links for compound
mappings already, so we build on top of this for promoting mappings and
reclaiming unused slots.

At the same time, the changes introduced for the uncached helpers also
permit us to dynamically resize the uncached mapping without any
particular headaches. The smallest page size is more than sufficient for
mapping all of kernel text, and as we're careful not to jump to any far
off locations in the setup code the mapping can safely be resized
regardless of whether we are executing from it or not.

Signed-off-by: Paul Mundt

sh: Fix zImage boot using fixed PMB.

2010-02-16T04:50:26+00:00

Signed-off-by: Nobuhiro Iwamatsu 
Signed-off-by: Yoshihiro Shimoda 
Signed-off-by: Paul Mundt

sh: Kill off superfluous sh_bios references from compressed loader.

2010-01-28T09:26:37+00:00

The VBR value needs to be initialized in order for any of the bios
trapping to work, and as we don't do that until slightly later in the
boot process, this has no real chance of working.

The only reason for using this in the past was due to the fact that early
serial initialization wasn't possible, but now that early sh-sci is
supported by everyone, there's no longer any reason to support the
sh_bios hacks in the first place. Given that, we just kill off the
references completely.

Signed-off-by: Paul Mundt

sh: Add support for LZO-compressed kernels.

2010-01-13T04:29:19+00:00

Plugs in LZO along with the others.

Signed-off-by: Paul Mundt

sh: Obliterate the P1 area macros

2009-10-10T12:51:02+00:00

Replace the use of PHYSADDR() with __pa(). PHYSADDR() is based on the
idea that all addresses in P1SEG are untranslated, so we can access an
address's physical page as an offset from P1SEG. This doesn't work for
CONFIG_PMB/CONFIG_PMB_FIXED because pages in P1SEG and P2SEG are used
for PMB mappings and so can be translated to any physical address.

Likewise, replace a P1SEGADDR() use with virt_to_phys().

Signed-off-by: Matt Fleming 
Signed-off-by: Paul Mundt

sh64: Don't use PHYSADDR() for output_addr calculation.

2009-07-11T17:36:25+00:00

Opencode the MEMORY_START offset directly, sh64 uses a slightly different
calculation.

Signed-off-by: Paul Mundt

sh: rename arch/sh/boot/compressed/misc_32.c -> misc.c

2009-07-11T17:32:24+00:00

This is now used by both sh64 and regular sh, kill off the old sh64
version now too.

Signed-off-by: Paul Mundt

sh: Merge the sh64 zImage bits.

2008-01-28T04:18:52+00:00

Signed-off-by: Paul Mundt

sh: Fix .empty_zero_page alignment for PAGE_SIZE > 4096.

2006-12-11T23:53:29+00:00

Signed-off-by: Paul Mundt