linux.git/arch/powerpc/kernel/setup-common.c, branch v2.6.22-rc4

[POWERPC] Check cache coherency of kernel vs firmware

2007-05-12T01:32:50+00:00

check_cache_coherency() verifies that the cache coherency setting of
the kernel (CONFIG_NOT_COHERENT_CACHE) matches that left by the firmware,
as indicated by coherency-off device tree property.

Signed-off-by: Dale Farnsworth 
Signed-off-by: Paul Mackerras

[POWERPC] Generic check_legacy_ioport

2007-04-27T11:14:30+00:00

check_legacy_ioport makes only sense on PREP, CHRP and pSeries.
They may have an isa node with PS/2, parport, floppy and serial ports.

Remove the check_legacy_ioport call from ppc_md, it's not needed
anymore.  Hardware capabilities come from the device-tree.

Signed-off-by: Olaf Hering 
Signed-off-by: Paul Mackerras

[POWERPC] Rename get_property to of_get_property: arch/powerpc

2007-04-12T17:55:19+00:00

Signed-off-by: Stephen Rothwell 
Acked-by: Benjamin Herrenschmidt 
Signed-off-by: Paul Mackerras

[POWERPC] Rename prom_n_size_cells to of_n_size_cells

2007-04-12T17:55:18+00:00

This is more consistent and gets us closer to the Sparc code.

Signed-off-by: Stephen Rothwell 
Signed-off-by: Paul Mackerras

[POWERPC] Rename prom_n_addr_cells to of_n_addr_cells

2007-04-12T17:55:18+00:00

This is more consistent and gets us closer to the Sparc code.

Signed-off-by: Stephen Rothwell 
Signed-off-by: Paul Mackerras

[POWERPC] Remove unused inclusion of linux/ide.h

2007-04-12T17:55:14+00:00

Remove unneeded inclusion of linux/ide.h
It does not compile with CONFIG_BLOCK=n.

Remove asm/ide.h from ksyms file, it gets included earlier via
linux/ide.h.

Compile tested with all defconfig files.

Signed-off-by: Olaf Hering 
Signed-off-by: Paul Mackerras

[POWERPC] Automatically lmb_reserve() initrd

2007-03-08T04:43:35+00:00

At present, when an initrd is passed to the kernel used flat device
tree properties, the memory the initrd occupies must also be reserved
in the flat tree's reserve map, or the kernel may overwrite it.  That
makes life more complicated than it could be for the bootwrapper.

This patch makes the kernel automatically reserve the initrd's space.
That in turn requires parsing the initrd parameters earlier than they
are currently, in early_init_dt_scan_chosen() instead of
check_for_initrd().

Signed-off-by: David Gibson 
Signed-off-by: Paul Mackerras

[POWERPC] Fix xmon=off and cleanup xmon initialisation

2006-10-04T04:52:22+00:00

My patch to make the early xmon logic work with earlier early param
parsing (480f6f35a149802a94ad5c1a2673ed6ec8d2c158) breaks xmon=off.

No one does this obviously as xmon rocks, but it should really work
as documented.

While fixing that it struck me that we could move the xmon param
handling into xmon.c, and also consolidate the
xmon_init()/do_early_xmon logic into xmon_setup(). This means
xmon=early drops into xmon a little earlier on 32-bit, but it
seems to work just fine.

Tested on PSERIES and CLASSIC32.

Signed-off-by: Michael Ellerman 
Signed-off-by: Paul Mackerras

[POWERPC] Define of_read_ulong helper

2006-09-20T05:09:48+00:00

There are various places where we want to extract an unsigned long
value from a device-tree property that can be 1 or 2 cells in length.
This replaces some open-coded calculations, and one place where we
assumed without checking that properties were the length we wanted,
with a little of_read_ulong() helper.

Signed-off-by: Paul Mackerras

[POWERPC] print backtrace when entering xmon

2006-09-13T08:39:53+00:00

xmon does not print a backtrace per default. This is bad on systems with
USB keyboard, the most needed info about the crash is lost.
print a backtrace during the very first xmon entry.

Booting with xmon=nobt disables the autobacktrace functionality.

Signed-off-by: Olaf Hering 
Signed-off-by: Paul Mackerras