litmus-rt-pandaboard.git/arch/powerpc/sysdev/Makefile, branch pandaboard-litmus

powerpc/4xx: Adding PCIe MSI support

2011-05-26T05:00:37+00:00

This patch adds MSI support for 440SPe, 460Ex, 460Sx and 405Ex.

Signed-off-by: Rupjyoti Sarmah 
Signed-off-by: Tirumala R Marri 
Acked-by: Josh Boyer 
Signed-off-by: Benjamin Herrenschmidt

powerpc: Add SCOM infrastructure

2011-04-20T07:01:19+00:00

SCOM is a side-band configuration bus implemented on some processors.
This code provides a way for code to map and operate on devices via
SCOM, while the details of how that is implemented is left up to a
SCOM "controller" in the platform code.

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

powerpc/xics: Rewrite XICS driver

2011-04-20T01:02:35+00:00

This is a significant rework of the XICS driver, too significant to
conveniently break it up into a series of smaller patches to be honest.

The driver is moved to a more generic location to allow new platforms
to use it, and is broken up into separate ICP and ICS "backends". For
now we have the native and "hypervisor" ICP backends and one common
RTAS ICS backend.

The driver supports one ICP backend instanciation, and many ICS ones,
in order to accomodate future platforms with multiple possibly different
interrupt "sources" mechanisms.

Signed-off-by: Benjamin Herrenschmidt

rapidio: modify configuration to support PCI-SRIO controller

2011-03-24T02:46:42+00:00

1. Add an option to include RapidIO support if the PCI is available.
2. Add FSL_RIO configuration option to enable controller selection.
3. Add RapidIO support option into x86 and MIPS architectures.

Signed-off-by: Alexandre Bounine 
Acked-by: Kumar Gala 
Cc: Matt Porter 
Cc: Li Yang 
Cc: Thomas Moll 
Cc: Micha Nelissen 
Cc: Benjamin Herrenschmidt 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

powerpc/4xx: Add suspend and idle support

2010-11-29T15:05:06+00:00

Add suspend/resume support for 4xx compatible CPUs.
See /sys/power/state for available power states configured in.

Add two different idle states (idle-wait and idle-doze) controlled via sysfs.
Default is idle-wait.
	cat /sys/devices/system/cpu/cpu0/idle
	[wait] doze

To save additional power, use idle-doze.
	echo doze > /sys/devices/system/cpu/cpu0/idle
	cat /sys/devices/system/cpu/cpu0/idle
	wait [doze]

Signed-off-by: Victor Gallardo 
Signed-off-by: Josh Boyer

powerpc/85xx: add cache-sram support

2010-10-14T05:54:38+00:00

It adds cache-sram support in P1/P2 QorIQ platforms as under:

* A small abstraction over powerpc's remote heap allocator
* Exports mpc85xx_cache_sram_alloc()/free() APIs
* Supports only one contiguous SRAM window
* Drivers can do the following in Kconfig to use these APIs
    "select FSL_85XX_CACHE_SRAM if MPC85xx"
* Required SRAM size and the offset where SRAM should be mapped must be
  provided at kernel command line as :
    cache-sram-size=
    cache-sram-offset=

Signed-off-by: Harninder Rai 
Signed-off-by: Vivek Mahajan 
Signed-off-by: Kumar Gala

powerpc/Makefiles: Change to new flag variables

2010-10-13T05:19:22+00:00

Replace EXTRA_CFLAGS with ccflags-y and EXTRA_AFLAGS with asflags-y.

Signed-off-by: matt mooney 
Signed-off-by: Benjamin Herrenschmidt

powerpc/85xx/86xx: Add suspend/resume support

2009-11-12T03:43:28+00:00

This patch adds suspend/resume support for MPC8540 and MPC8641D-
compatible CPUs. To reach sleep state, we just write the SLP bit
into the PM control and status register.

So far we don't support Deep Sleep mode as found in newer MPC85xx
CPUs (i.e. MPC8536). It can be relatively easy implemented though,
and for it we reserve 'mem' suspend type.

Signed-off-by: Anton Vorontsov 
Acked-by: Scott Wood 
Signed-off-by: Kumar Gala

powerpc/5xxx: Add common mpc5xxx_get_bus_frequency() function

2009-06-17T06:30:22+00:00

So far, MPC512x used mpc512x_find_ips_freq() to get the bus frequency,
while MPC52xx used mpc52xx_find_ipb_freq().  Despite the different
clock names (IPS vs. IPB) the code was identical.

Use common code for both processor families.

Signed-off-by: Wolfgang Denk 
Signed-off-by: Grant Likely

powerpc: Add configurable -Werror for arch/powerpc

2009-06-16T04:15:45+00:00

Add the option to build the code under arch/powerpc with -Werror.

The intention is to make it harder for people to inadvertantly introduce
warnings in the arch/powerpc code. It needs to be configurable so that
if a warning is introduced, people can easily work around it while it's
being fixed.

The option is a negative, ie. don't enable -Werror, so that it will be
turned on for allyes and allmodconfig builds.

The default is n, in the hope that developers will build with -Werror,
that will probably lead to some build breaks, I am prepared to be flamed.

It's not enabled for math-emu, which is a steaming pile of warnings.

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