linux.git/arch/powerpc/Kconfig.debug, branch v2.6.24

[POWERPC] 4xx: Split early debug output and early boot console for 44x

2007-10-19T21:18:18+00:00

Currently there's no way to enable early boot console on PowerPC 44x
not specifying uart's physical address in kernel config, which is used
for very early debug messages. This patch splits very early debug output
(which needs uart physical address in kernel config) and early boot console
(which searches for uarts in the device tree using find_legacy_serial_ports).
We enable early boot console for all 44x processors, while (dangerous)
early debug is user-selectable.

Signed-off-by: Valentine Barshak 
Signed-off-by: Josh Boyer

kconfig: syntax cleanup - drop support for "depends/requires/def_boolean"

2007-10-12T19:20:32+00:00

Remove the following redundant and never or rarely used kconfig syntax:

- "def_boolean" (same as "def_bool")
- "requires" (same as "depends on")
- "depends" (same as "depends on")

This patch contains the code changes and Kconfig updates.
The shipped files are in next patch to let actual codechange stand out.

Signed-off-by: Adrian Bunk 
Cc: "Randy.Dunlap" 
Cc: Bryan Wu 
Cc: Paul Mackerras 
Cc: Benjamin Herrenschmidt 
Cc: Dmitry Torokhov 
Cc: "John W. Linville" 
Cc: Roman Zippel 
Cc: Richard Purdie 
Signed-off-by: Andrew Morton 
Signed-off-by: Sam Ravnborg

[POWERPC] cpm: Describe multi-user ram in its own device node.

2007-10-04T20:47:05+00:00

The way the current CPM binding describes available multi-user (a.k.a.
dual-ported) RAM doesn't work well when there are multiple free regions,
and it doesn't work at all if the region doesn't begin at the start of
the muram area (as the hardware needs to be programmed with offsets into
this area).  The latter situation can happen with SMC UARTs on CPM2, as its
parameter RAM is relocatable, u-boot puts it at zero, and the kernel doesn't
support moving it.

It is now described with a muram node, similar to QE.  The current CPM
binding is sufficiently recent (i.e. never appeared in an official release)
that compatibility with existing device trees is not an issue.

The code supporting the new binding is shared between cpm1 and cpm2, rather
than remain separated.  QE should be able to use this code as well, once
minor fixes are made to its device trees.

Signed-off-by: Scott Wood 
Signed-off-by: Kumar Gala

[POWERPC] Add early debug console for CPM serial ports.

2007-10-04T01:35:43+00:00

This code assumes that the ports have been previously set up, with
buffers in DPRAM.

Signed-off-by: Scott Wood 
Acked-by: David Gibson 
Signed-off-by: Kumar Gala

[POWERPC] Export virq mapping via debugfs

2007-09-13T15:33:20+00:00

This adds a debugfs file "powerpc/virq_mapping", which shows the virtual
to real mapping of irq numbers.  Enable it with CONFIG_VIRQ_DEBUG.

Signed-off-by: Zhang Wei 
Signed-off-by: Chen Gong 
Signed-off-by: Michael Ellerman 
Signed-off-by: Paul Mackerras

Replace CONFIG_SOFTWARE_SUSPEND with CONFIG_HIBERNATION

2007-07-29T23:45:38+00:00

Replace CONFIG_SOFTWARE_SUSPEND with CONFIG_HIBERNATION to avoid
confusion (among other things, with CONFIG_SUSPEND introduced in the
next patch).

Signed-off-by: Rafael J. Wysocki 
Signed-off-by: Linus Torvalds

[POWERPC] Only allow building of BootX text support on PPC_MULTIPLATFORM

2007-07-26T05:43:36+00:00

BootX text code is only supported on systems with real OF at this point
which is PPC_OF && PPC_MULTIPLATFORM.

Signed-off-by: Kumar Gala

Fix trivial typos in Kconfig* files

2007-05-09T05:12:20+00:00

Fix several typos in help text in Kconfig* files.

Signed-off-by: David Sterba 
Signed-off-by: Adrian Bunk

[POWERPC] Early serial debug support for PPC44x

2007-05-08T04:47:33+00:00

This adds support for early serial debugging via the built in
port on IBM/AMCC PowerPC 44x CPUs.  It uses a bolted TLB entry in
address space 1 for the UART's mapping, allowing robust debugging both
before and after the initialization of the MMU.

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

[POWERPC] DEBUG_PAGEALLOC for 64-bit

2007-04-12T18:09:39+00:00

Here's an implementation of DEBUG_PAGEALLOC for 64 bits powerpc.
It applies on top of the 32 bits patch.

Unlike Anton's previous attempt, I'm not using updatepp. I'm removing
the hash entries from the bolted mapping (using a map in RAM of all the
slots). Expensive but it doesn't really matter, does it ? :-)

Memory hot-added doesn't benefit from this unless it's added at an
address that is below end_of_DRAM() as calculated at boot time.

Signed-off-by: Benjamin Herrenschmidt 

 arch/powerpc/Kconfig.debug      |    2
 arch/powerpc/mm/hash_utils_64.c |   84 ++++++++++++++++++++++++++++++++++++++--
 2 files changed, 82 insertions(+), 4 deletions(-)
Signed-off-by: Paul Mackerras