Now we have high res timers there is less of a reason for a high HZ value.
Furthermore I think there a few reasons we should reduce HZ to 100:

- Timer interrupt overhead. While this overhead is small, there are
  applications that are very sensitive to jitter (eg some HPC apps).

- Issues with the timer wheel code. When coming out of NO_HZ idle we work our
  way through the timer code one tick at a time.  If we have been idle a long
  time, this adds up - I sometimes see milliseconds of time spent in that
  loop.

  Long term we should fix the timer wheel algorithm, but for now if we reduce
  HZ then we reduce the amount of work the timer code has to do when coming
  out of idle.
Signed-off-by: NAnton Blanchard <anton@samba.org>
Signed-off-by: NBenjamin Herrenschmidt <benh@kernel.crashing.org>

Token what? Lets save some space in our powerpc kernels and remove token
ring support.
Signed-off-by: NAnton Blanchard <anton@samba.org>
Signed-off-by: NBenjamin Herrenschmidt <benh@kernel.crashing.org>

Machines with acenic adapters are rare these days, so we may as well make it
a module. Cramfs is also very rarely used so we can make it a module.

Together this saves 143kB on a 64bit compile:

   text	   data	    bss	    dec	    hex	filename
8247176	1729404	1221988	11198568	 aae068	vmlinux~
8134997	1727588	1188836	11051421	 a8a19d	vmlinux
Signed-off-by: NAnton Blanchard <anton@samba.org>
Signed-off-by: NBenjamin Herrenschmidt <benh@kernel.crashing.org>

Add a default configuration for the Nintendo Wii video game console.
Signed-off-by: NAlbert Herranz <albert_herranz@yahoo.es>
Acked-by: NBenjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: NGrant Likely <grant.likely@secretlab.ca>

Add a default configuration for the Nintendo GameCube video game console.
Signed-off-by: NAlbert Herranz <albert_herranz@yahoo.es>
Signed-off-by: NGrant Likely <grant.likely@secretlab.ca>

Add support for NVRAM on GE Fanuc's PPC9A.
Signed-off-by: NMartyn Welch <martyn.welch@gefanuc.com>
Signed-off-by: NKumar Gala <galak@kernel.crashing.org>

Add support for NVRAM on GE Fanuc's SBC310.
Signed-off-by: NMartyn Welch <martyn.welch@gefanuc.com>
Signed-off-by: NKumar Gala <galak@kernel.crashing.org>

This patch enables the NVRAM found on the GE Fanuc SBC610
Signed-off-by: NMartyn Welch <martyn.welch@gefanuc.com>
Signed-off-by: NKumar Gala <galak@kernel.crashing.org>

pasemi_defconfig hasn't been updated for a year.

Mostly a refresh of defaults, but this also disables 64K pages.
Signed-off-by: NOlof Johansson <olof@lixom.net>
Signed-off-by: NBenjamin Herrenschmidt <benh@kernel.crashing.org>

Updated mpc85xx_{smp_}defconfig to enable:
* XES_MPC85xx board
* PCI MSI
* RapidIO
Signed-off-by: NKumar Gala <galak@kernel.crashing.org>

Signed-off-by: NKim Phillips <kim.phillips@freescale.com>
Signed-off-by: NKumar Gala <galak@kernel.crashing.org>

pasemi_defconfig hasn't been updated for a year.

Mostly a refresh of defaults, but this also disables 64K pages.
Signed-off-by: NOlof Johansson <olof@lixom.net>
Signed-off-by: NBenjamin Herrenschmidt <benh@kernel.crashing.org>

The overhead of HCALL_STATS is quite high and the functionality is very
rarely used.  Key statistics are also missing (eg min/max).

With the new hcall tracepoints much more powerful tracing can be done in
a kernel module.  Lets disable this by default.
Signed-off-by: NAnton Blanchard <anton@samba.org>
Signed-off-by: NPaul Mackerras <paulus@samba.org>

This defconfig's purpose at this time is to help catch compile errors
between Book-3S and Book-3E support in ppc64.  It is based on the
ppc64_defconfig with some things disabled that we dont support on
Book-3E right now (hugetlbfs, slices, etc.)
Signed-off-by: NKumar Gala <galak@kernel.crashing.org>
Signed-off-by: NBenjamin Herrenschmidt <benh@kernel.crashing.org>

Signed-off-by: NGrant Likely <grant.likely@secretlab.ca>

- serial Console on PSC1
- 64MB SDRAM
- MTD CFI Flash
- Ethernet FEC
- IDE support
Signed-off-by: NHeiko Schocher <hs@denx.de>
Reviewed-by: NWolfram Sang <w.sang@pengutronix.de>
Signed-off-by: NGrant Likely <grant.likely@secretlab.ca>

This patch adds support for the AMCC (AppliedMicro) PPC460SX Eiger evaluation
board.
Signed-off-by: NTai Tri Nguyen <ttnguyen@amcc.com>
Acked-by: NFeng Kan <fkan@amcc.com>
Acked-by: NTirumala Marri <tmarri@amcc.com>
Signed-off-by: NJosh Boyer <jwboyer@linux.vnet.ibm.com>

This patch adds NOR MTD support and I2C HWMON support for the AD7414
to the AMCC Arches defconfig.
Signed-off-by: NStefan Roese <sr@denx.de>
Signed-off-by: NJosh Boyer <jwboyer@linux.vnet.ibm.com>

Update ps3_defconfig.

 o Refresh for 2.6.31.
 o Remove MTD support.
 o Add more HID drivers.
Signed-off-by: NGeoff Levand <geoffrey.levand@am.sony.com>
Signed-off-by: NBenjamin Herrenschmidt <benh@kernel.crashing.org>

With flash partition entries in the DTS file, MTD might as well
be enabled in the defconfig.  In a similar vein, enable USB and
enough related options (SCSI/ext2/ext3) so that a user can read
and write to a generic USB flash drive as well.

Also, this board only has the two default SOC UARTs, so adjust the
UART config accordingly.
Signed-off-by: NPaul Gortmaker <paul.gortmaker@windriver.com>
Signed-off-by: NKumar Gala <galak@kernel.crashing.org>

Add support for the P2020RDB reference board from Freescale.

Overview of P2020RDB platform
	- DDR
	  DDR2 1G
	- NOR Flash
	  16MByte
	- NAND Flash
	  32MByte
	- 3 Ethernet interfaces
	  1) etSEC1
		- RGMII
		- connected to a 5 port Vitesse Switch(VSC7385)
		- Switch is memory mapped through eLBC interface(CS#2)
		- IRQ1
	  2) etSEC2
		- SGMII
		- connected to VSC8221
		- IRQ2
	  3) etSEC3
		- RGMII
		- connected to VSC8641
		- IRQ3
	- 2 1X PCIe interfaces
	- SD/MMC ,USB
	- SPI EEPROM
	- Serial I2C EEPROM
Signed-off-by: NPoonam Aggrwal <poonam.aggrwal@freescale.com>
Signed-off-by: NKumar Gala <galak@kernel.crashing.org>

- add I2C support
- add FCC1 and FCC2 support
Signed-off-by: NHeiko Schocher <hs@denx.de>
Signed-off-by: NKumar Gala <galak@kernel.crashing.org>

This patch adds support for the following devices to the Kilauea
defconfig file:
- PPC4xx NAND controller (NDFC)
- I2C RTC (Dallas DS1338)
- I2C HWMON (Dallas DS1775)
Signed-off-by: NStefan Roese <sr@denx.de>
Signed-off-by: NJosh Boyer <jwboyer@linux.vnet.ibm.com>
Signed-off-by: NBenjamin Herrenschmidt <benh@kernel.crashing.org>

This patch adds support for the following devices to the Canyonlands
defconfig file:
- NOR FLASH
- PPC4xx NAND controller (NDFC)
- I2C RTC (M41T80)
Signed-off-by: NStefan Roese <sr@denx.de>
Signed-off-by: NJosh Boyer <jwboyer@linux.vnet.ibm.com>
Signed-off-by: NBenjamin Herrenschmidt <benh@kernel.crashing.org>

Signed-off-by: NKumar Gala <galak@kernel.crashing.org>

General update of defconfig including the following notable changes:
 - Enable Highmem support.
 - Support for PCMCIA based daughter card.
Signed-off-by: NMartyn Welch <martyn.welch@gefanuc.com>
Signed-off-by: NKumar Gala <galak@kernel.crashing.org>

General update of defconfig including the following notable changes:
 - Enable GPIO access via sysfs on GE Fanuc's PPC9A.
 - Enable Highmem support.
 - Support for PCMCIA based daughter card.
Signed-off-by: NMartyn Welch <martyn.welch@gefanuc.com>
Signed-off-by: NKumar Gala <galak@kernel.crashing.org>

* Enable GPIO LEDS and LED triggers
* Move to SLUB
* Enable HOTPLUG
* Enable timestamps on printks
* Enable UBIFS
* Enable in-kernel config
Signed-off-by: NSean MacLennan <smaclennan@pikatech.com>
Signed-off-by: NJosh Boyer <jwboyer@linux.vnet.ibm.com>

Signed-off-by: NNate Case <ncase@xes-inc.com>
Signed-off-by: NKumar Gala <galak@kernel.crashing.org>

The following series implements basic board support for
the kmeter1 board from keymile, based on a MPC8360.

This series provides the following functionality:

- The board can boot with a serial console on UART1
- Ethernet:
    UCC1 in RGMII mode
    UCC2 in RGMII mode
    UCC4 in RMII mode
    UCC5 in RMII mode
    UCC6 in RMII mode
    UCC7 in RMII mode
    UCC8 in RMII mode

    following patch is necessary for working UCC in RMII mode:

    http://lists.ozlabs.org/pipermail/linuxppc-dev/2009-April/070804.html

- Flash accessed via MTD layer

  On this hardware there is an Intel P30 flash, following patch
  series is necessary for working with this hardware:

  http://lists.ozlabs.org/pipermail/linuxppc-dev/2009-April/070624.html

- I2C using I2C Bus 1 from the MPC8360 cpu
Signed-off-by: NHeiko Schocher <hs@denx.de>
Signed-off-by: NKumar Gala <galak@kernel.crashing.org>

This driver only reads the user EEPROM of that chip, so we can move it
to the eeprom-directory in order to further clean up (and later remove)
drivers/i2c/chips.

The Kconfig text was updated to match the current functionality,
dropping the meanwhile obsoleted parts.

Defconfigs have been adapted.
Signed-off-by: NWolfram Sang <w.sang@pengutronix.de>
Acked-by: NBen Gardner <gardner.ben@gmail.com>
Signed-off-by: NJean Delvare <khali@linux-fr.org>

This cleans up the kilauea/halekala board ports to use the ppc40x_simple
platform support.
Tested-by: NStefan Roese <sr@denx.de>
Signed-off-by: NJosh Boyer <jwboyer@linux.vnet.ibm.com>

This cleans up the makalu board port to use the ppc40x_simple platform
support.
Tested-by: NStefan Roese <sr@denx.de>
Signed-off-by: NJosh Boyer <jwboyer@linux.vnet.ibm.com>

Now that the 4xx NAND driver is available again in arch/powerpc, let's
enable it on Sequoia. This patch also disables the early debug messages
(CONFIG_PPC_EARLY_DEBUG) in the Sequoia defconfig.
Signed-off-by: NStefan Roese <sr@denx.de>
Signed-off-by: NJosh Boyer <jwboyer@linux.vnet.ibm.com>

The single board defconfig files were missed during the cleanup
of CONFIG_PCI_LEGACY in the multi-board config files.  This
disables the option for the single board configs, as it isn't
used by anything for these boards.
Reported-by: NCheng Renquan <crquan@gmail.com>
Signed-off-by: NJosh Boyer <jwboyer@linux.vnet.ibm.com>

This mostly adds back AppleTouch support and adds CONFIG_HIGHMEM
by default.
Signed-off-by: NBenjamin Herrenschmidt <benh@kernel.crashing.org>

Refresh and set these options:

 CONFIG_SYSFS_DEPRECATED_V2: y -> n
 CONFIG_INPUT_JOYSTICK:      y -> n
 CONFIG_HID_SONY:            n -> m
 CONFIG_RTC_DRV_PS3:         - -> m
Signed-off-by: NGeoff Levand <geoffrey.levand@am.sony.com>
Signed-off-by: NBenjamin Herrenschmidt <benh@kernel.crashing.org>

Signed-off-by: NKumar Gala <galak@kernel.crashing.org>

Signed-off-by: NKumar Gala <galak@kernel.crashing.org>

Signed-off-by: NKumar Gala <galak@kernel.crashing.org>