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kernel_optimize_test/arch/powerpc/platforms/Kconfig
Maxim Shchetynin dbdf04c401 [CELL] driver for DDR2 memory on AXON 
The Axon bridge chip used on new Cell/B.E. based blade servers
comes with a DDR2 memory controller that can be used to
attach cheap memory modules, as opposed to the high-speed
XDR memory that is used by the CPU itself.

Since the memory controller does not participate in the
cache coherency protocol, we can not use the memory direcly
for Linux applications, but by providing a block device
it can be used for swap space, temporary file storage and
through the use of the direct_access block device operation
for mapping into user addresses, when it is mounted with
an appropriate file system.

Signed-off-by: Maxim Shchetynin <maxim@de.ibm.com>
Signed-off-by: Arnd Bergmann <arnd.bergmann@de.ibm.com>
2007-07-20 21:41:42 +02:00

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menu "Platform support"
choice
prompt "Machine type"
depends on PPC64 || 6xx
default PPC_MULTIPLATFORM
config PPC_MULTIPLATFORM
bool "Generic desktop/server/laptop"
help
Select this option if configuring for an IBM pSeries or
RS/6000 machine, an Apple machine, or a PReP, CHRP,
Maple or Cell-based machine.
config EMBEDDED6xx
bool "Embedded 6xx/7xx/7xxx-based board"
depends on PPC32 && (BROKEN||BROKEN_ON_SMP)
config PPC_82xx
bool "Freescale 82xx"
depends on 6xx
config PPC_83xx
bool "Freescale 83xx"
depends on 6xx
select FSL_SOC
select 83xx
select WANT_DEVICE_TREE
config PPC_86xx
bool "Freescale 86xx"
depends on 6xx
select FSL_SOC
select ALTIVEC
help
The Freescale E600 SoCs have 74xx cores.
endchoice
config CLASSIC32
def_bool y
depends on 6xx && PPC_MULTIPLATFORM
source "arch/powerpc/platforms/pseries/Kconfig"
source "arch/powerpc/platforms/iseries/Kconfig"
source "arch/powerpc/platforms/chrp/Kconfig"
source "arch/powerpc/platforms/52xx/Kconfig"
source "arch/powerpc/platforms/powermac/Kconfig"
source "arch/powerpc/platforms/prep/Kconfig"
source "arch/powerpc/platforms/maple/Kconfig"
source "arch/powerpc/platforms/pasemi/Kconfig"
source "arch/powerpc/platforms/celleb/Kconfig"
source "arch/powerpc/platforms/ps3/Kconfig"
source "arch/powerpc/platforms/cell/Kconfig"
source "arch/powerpc/platforms/8xx/Kconfig"
source "arch/powerpc/platforms/82xx/Kconfig"
source "arch/powerpc/platforms/83xx/Kconfig"
source "arch/powerpc/platforms/85xx/Kconfig"
source "arch/powerpc/platforms/86xx/Kconfig"
source "arch/powerpc/platforms/embedded6xx/Kconfig"
source "arch/powerpc/platforms/44x/Kconfig"
#source "arch/powerpc/platforms/4xx/Kconfig
config PPC_NATIVE
bool
depends on PPC_MULTIPLATFORM
help
Support for running natively on the hardware, i.e. without
a hypervisor. This option is not user-selectable but should
be selected by all platforms that need it.
config UDBG_RTAS_CONSOLE
bool "RTAS based debug console"
depends on PPC_RTAS
default n
config PPC_UDBG_BEAT
bool "BEAT based debug console"
depends on PPC_CELLEB
default n
config XICS
depends on PPC_PSERIES
bool
default y
config MPIC
bool
default n
config MPIC_WEIRD
bool
default n
config PPC_I8259
bool
default n
config U3_DART
bool
depends on PPC_MULTIPLATFORM && PPC64
default n
config PPC_RTAS
bool
default n
config RTAS_ERROR_LOGGING
bool
depends on PPC_RTAS
default n
config RTAS_PROC
bool "Proc interface to RTAS"
depends on PPC_RTAS
default y
config RTAS_FLASH
tristate "Firmware flash interface"
depends on PPC64 && RTAS_PROC
config PPC_PMI
tristate "Support for PMI"
depends PPC_IBM_CELL_BLADE
help
PMI (Platform Management Interrupt) is a way to
communicate with the BMC (Baseboard Mangement Controller).
It is used in some IBM Cell blades.
default m
config MMIO_NVRAM
bool
default n
config MPIC_U3_HT_IRQS
bool
depends on PPC_MAPLE
default y
config IBMVIO
depends on PPC_PSERIES || PPC_ISERIES
bool
default y
config IBMEBUS
depends on PPC_PSERIES
bool "Support for GX bus based adapters"
help
Bus device driver for GX bus based adapters.
config PPC_MPC106
bool
default n
config PPC_970_NAP
bool
default n
config PPC_INDIRECT_IO
bool
select GENERIC_IOMAP
default n
config GENERIC_IOMAP
bool
default n
source "drivers/cpufreq/Kconfig"
menu "CPU Frequency drivers"
depends on CPU_FREQ
config CPU_FREQ_PMAC
bool "Support for Apple PowerBooks"
depends on ADB_PMU && PPC32
select CPU_FREQ_TABLE
help
This adds support for frequency switching on Apple PowerBooks,
this currently includes some models of iBook & Titanium
PowerBook.
config CPU_FREQ_PMAC64
bool "Support for some Apple G5s"
depends on PPC_PMAC && PPC64
select CPU_FREQ_TABLE
help
This adds support for frequency switching on Apple iMac G5,
and some of the more recent desktop G5 machines as well.
config PPC_PASEMI_CPUFREQ
bool "Support for PA Semi PWRficient"
depends on PPC_PASEMI
default y
select CPU_FREQ_TABLE
help
This adds the support for frequency switching on PA Semi
PWRficient processors.
endmenu
config PPC601_SYNC_FIX
bool "Workarounds for PPC601 bugs"
depends on 6xx && (PPC_PREP || PPC_PMAC)
help
Some versions of the PPC601 (the first PowerPC chip) have bugs which
mean that extra synchronization instructions are required near
certain instructions, typically those that make major changes to the
CPU state. These extra instructions reduce performance slightly.
If you say N here, these extra instructions will not be included,
resulting in a kernel which will run faster but may not run at all
on some systems with the PPC601 chip.
If in doubt, say Y here.
config TAU
bool "On-chip CPU temperature sensor support"
depends on CLASSIC32
help
G3 and G4 processors have an on-chip temperature sensor called the
'Thermal Assist Unit (TAU)', which, in theory, can measure the on-die
temperature within 2-4 degrees Celsius. This option shows the current
on-die temperature in /proc/cpuinfo if the cpu supports it.
Unfortunately, on some chip revisions, this sensor is very inaccurate
and in many cases, does not work at all, so don't assume the cpu
temp is actually what /proc/cpuinfo says it is.
config TAU_INT
bool "Interrupt driven TAU driver (DANGEROUS)"
depends on TAU
---help---
The TAU supports an interrupt driven mode which causes an interrupt
whenever the temperature goes out of range. This is the fastest way
to get notified the temp has exceeded a range. With this option off,
a timer is used to re-check the temperature periodically.
However, on some cpus it appears that the TAU interrupt hardware
is buggy and can cause a situation which would lead unexplained hard
lockups.
Unless you are extending the TAU driver, or enjoy kernel/hardware
debugging, leave this option off.
config TAU_AVERAGE
bool "Average high and low temp"
depends on TAU
---help---
The TAU hardware can compare the temperature to an upper and lower
bound. The default behavior is to show both the upper and lower
bound in /proc/cpuinfo. If the range is large, the temperature is
either changing a lot, or the TAU hardware is broken (likely on some
G4's). If the range is small (around 4 degrees), the temperature is
relatively stable. If you say Y here, a single temperature value,
halfway between the upper and lower bounds, will be reported in
/proc/cpuinfo.
If in doubt, say N here.
config QUICC_ENGINE
bool
help
The QUICC Engine (QE) is a new generation of communications
coprocessors on Freescale embedded CPUs (akin to CPM in older chips).
Selecting this option means that you wish to build a kernel
for a machine with a QE coprocessor.
config CPM2
bool
default n
help
The CPM2 (Communications Processor Module) is a coprocessor on
embedded CPUs made by Freescale. Selecting this option means that
you wish to build a kernel for a machine with a CPM2 coprocessor
on it (826x, 827x, 8560).
config AXON_RAM
tristate "Axon DDR2 memory device driver"
depends on PPC_IBM_CELL_BLADE
default m
help
It registers one block device per Axon's DDR2 memory bank found
on a system. Block devices are called axonram?, their major and
minor numbers are available in /proc/devices, /proc/partitions or
in /sys/block/axonram?/dev.
endmenu
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