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>

With -Werror enabled during the build, the warp.c file fails to build
due to the temp_isr function not containing a return statement.  This
fixes the build error and documents that the function never returns.
Signed-off-by: NJosh Boyer <jwboyer@linux.vnet.ibm.com>

The GPIO LEDS driver now has a default state of "keep".  Update the Warp DTS
and platform file to take advantage of this new state.  This removes the
hardcoding of the two LEDs on the Warp.
Signed-off-by: NSean MacLennan <smaclennan@pikatech.com>
Signed-off-by: NJosh Boyer <jwboyer@linux.vnet.ibm.com>

A change to the i2c subsystem breaks the warp platform code. The patch
is cleaner anyway, the old way was a bit crufty.

For those with keen eyes, the gratuitous change in the string from
PIKA to Warp is just so the logs look a bit nicer. The following two
lines tend to be printed one after another.

  Warp POST OK
  Warp DTM thread running.

Yeah, this will be the third patch to warp.c submitted in this
release....

Cheers,
   Sean

The i2c_client struct changed, breaking the code that looked for the ad7414
chip. Use the new of_find_i2c_device_by_node function added in 2.6.29.
Signed-off-by: NSean MacLennan <smaclennan@pikatech.com>
Signed-off-by: NBenjamin Herrenschmidt <benh@kernel.crashing.org>

If no device is passed to __dma_alloc_coherent, it defaults to using ISA_DMA_THRESHOLD
for the mask. This patch provides a reasonable default rather than 0.
Signed-off-by: NSean MacLennan <smaclennan@pikatech.com>
Signed-off-by: NBenjamin Herrenschmidt <benh@kernel.crashing.org>

Signed-off-by: NRoderick Colenbrander <thunderbird2k@gmail.com>
Signed-off-by: NGrant Likely <grant.likely@secretlab.ca>

This patch adds support for the Xilinx plbv46-pci-1.03.a PCI host
bridge IPcore.
Signed-off-by: NRoderick Colenbrander <thunderbird2k@gmail.com>
Signed-off-by: NGrant Likely <grant.likely@secretlab.ca>

Now that leds-gpio is a proper OF platform driver, the Warp can use
the leds-gpio driver rather than the old out-of-kernel driver.

One side-effect is the leds-gpio driver always turns the leds off
while the old driver left them alone. So we have to set them back to
the correct settings.
Signed-off-by: NSean MacLennan <smaclennan@pikatech.com>
Signed-off-by: NBenjamin Herrenschmidt <benh@kernel.crashing.org>

It is common to use U-Boot on Xilinx Virtex platforms.  This patch
ensures that CONFIG_DEFAULT_UIMAGE is selected for virtex
Signed-off-by: NGrant Likely <grant.likely@secretlab.ca>

This patch contains initial framework for the AMCC Redwood board.
Signed-off-by: NMadhulika Madishetty <mmadishetty@amcc.com>
Signed-off-by: NTirumala Marri <tmarri@amcc.com>
Signed-off-by: NFeng Kan <fkan@amcc.com>
Signed-off-by: NVidhyananth Venkatasamy <vvenkatasamy@amcc.com>
Signed-off-by: NPreetesh Parekh <pparekh@amcc.com>
Acked-by: NLoc Ho <lho@amcc.com>
Acked-by: NFeng Kan <fkan@amcc.com>
Signed-off-by: NJosh Boyer <jwboyer@linux.vnet.ibm.com>

Convert the Warp platform to use the newly merged NDFC driver

- warp.dts changed to work with ndfc
- warp-nand.c no longer needed
- removed obsolete rev A support from cuboot-warp.c
Signed-off-by: NSean MacLennan <smaclennan@pikatech.com>
Signed-off-by: NJosh Boyer <jwboyer@linux.vnet.ibm.com>

Currently there are a number of platforms that open code access to
the ppc_pci_flags global variable.  However, that variable is not
present if CONFIG_PCI is not set, which can lead to a build break.

This introduces a number of accessor functions that are defined
to be empty in the case of CONFIG_PCI being disabled.  The
various platform files in the kernel are updated to use these.
Signed-off-by: NJosh Boyer <jwboyer@linux.vnet.ibm.com>
Signed-off-by: NPaul Mackerras <paulus@samba.org>

This patch adds support for the GPIO functions of PPC40x and PPC44x
SOCs.
Signed-off-by: NSteve Falco <sfalco@harris.com>
Acked-by: NStefan Roese <sr@denx.de>
Acked-by: NSean MacLennan <smaclennan@pikatech.com>
Signed-off-by: NJosh Boyer <jwboyer@linux.vnet.ibm.com>

The Arches Evaluation board is based on the AMCC 460GT SoC chip.
This board is a dual processor board with each processor providing
independent resources for Rapid IO, Gigabit Ethernet, and serial
communications.  Each 460GT has it's own 512MB DDR2 memory, 32MB NOR FLASH,
UART, EEPROM and temperature sensor, along with a shared debug port.
The two 460GT's will communicate with each other via shared memory,
Gigabit Ethernet and x1 PCI-Express.
Signed-off-by: NVictor Gallardo <vgallardo@amcc.com>
Signed-off-by: NJosh Boyer <jwboyer@linux.vnet.ibm.com>

Add the Yosemite board to the explicitly supported list for ppc44x_simple
boards and remove the compatible entry for bamboo from the DTS file.
Signed-off-by: NJosh Boyer <jwboyer@linux.vnet.ibm.com>

Add explicit support for the AMCC Glacier eval board to Kconfig and the
ppc44x_simple file.  Also removes the cayonlands compatible entry from the
DTS file.
Signed-off-by: NJosh Boyer <jwboyer@linux.vnet.ibm.com>

Migrate the AMCC Taishan board to use the ppc44x_simple platform file.
Signed-off-by: NJosh Boyer <jwboyer@linux.vnet.ibm.com>

Migrate the AMCC Sequoia board to use the ppc44x_simple platform file.
Signed-off-by: NJosh Boyer <jwboyer@linux.vnet.ibm.com>

Migrate the AMCC Rainier board to use the ppc44x_simple platform file.
Signed-off-by: NJosh Boyer <jwboyer@linux.vnet.ibm.com>

Migrate the AMCC Katmai board to use the ppc44x_simple platform file.
Signed-off-by: NJosh Boyer <jwboyer@linux.vnet.ibm.com>

Migrate the AMCC Canyonlands board to use the ppc44x_simple platform file.
Signed-off-by: NJosh Boyer <jwboyer@linux.vnet.ibm.com>

Migrate the AMCC Bamboo board to use the ppc44x_simple platform file.
Signed-off-by: NJosh Boyer <jwboyer@linux.vnet.ibm.com>

This adds a common board file for almost all of the "simple" PowerPC 44x
boards that exist today.  This is intended to be a single place to add
support for boards that do not differ in platform support from most of the
evaluation boards that are used as reference platforms.  Boards that have
specific requirements or custom hardware setup should still have their own
board.c file.
Signed-off-by: NJosh Boyer <jwboyer@linux.vnet.ibm.com>

This patch removes the i2c code which is now obsolete due to the new
ibm iic driver walking the device tree for child nodes.

There are two other small cleanups that came indirectly from the ad7414
code review. Make sure Tlow is correct and handle the case where
i2c_smbus_read_word_data fails.
Signed-off-by: NSean MacLennan <smaclennan@pikatech.com>
Signed-off-by: NJosh Boyer <jwboyer@linux.vnet.ibm.com>

Adjust the NDFC resource end value (resource size = end - start + 1).
Signed-off-by: NValentine Barshak <vbarshak@ru.mvista.com>
Signed-off-by: NJosh Boyer <jwboyer@linux.vnet.ibm.com>

Allow the Rev A Warp boards to boot from NAND.
Signed-off-by: NSean MacLennan <smaclennan@pikatech.com>
Signed-off-by: NJosh Boyer <jwboyer@linux.vnet.ibm.com>

Support for the Xilinx Virtex5 FXT 440 is being added.
Signed-off-by: NJohn Linn <john.linn@xilinx.com>
Signed-off-by: NGrant Likely <grant.likely@secretlab.ca>

The Sam440ep is an high customizable general purpose mini-itx board,
based on the AMCC 440EP and with a LatticeXP FPGA onboard.

It's poduced by ACube Systems Srl (Bassano del Grappa, Italy),
http://www.acube-systems.biz.
Signed-off-by: NGiuseppe Coviello <gicoviello@gmail.com>
Signed-off-by: NJosh Boyer <jwboyer@linux.vnet.ibm.com>

The "ndfc-chip" device doesn't need any resources. All resources
are handled by the "ndfc-nand" device. Registering the same memory
resource twice causes "cat /proc/iomem" to go into an infinite loop
displaying NDFC memory addresses.
Signed-off-by: NValentine Barshak <vbarshak@ru.mvista.com>
Acked-by: NStefan Roese <sr@denx.de>
Acked-by: NSean MacLennan <smaclennan@pikatech.com>
Signed-off-by: NJosh Boyer <jwboyer@linux.vnet.ibm.com>

* Switched from 64M NOR/64M NAND to 4M NOR/256M NAND.
* Full DTM support including critical temperature.
* Added POST information.
* Removed LED function, moved to new LED driver.
* Moved ad7414 to new style I2C initialization.
Signed-off-by: NSean MacLennan <smaclennan@pikatech.com>
Signed-off-by: NJosh Boyer <jwboyer@linux.vnet.ibm.com>

This changes the cpu_idle loop for 44x platforms to utilize the Wait Enable
feature of the CPU.  This helps virtulization solutions know when the guest
Linux kernel is in an idle state.

A command line option called "idle" is also added to allow people to change
the idle loop back to the original variation.  This is done by setting
"idle=spin" on the kernel command line.
Signed-off-by: NJerone Young <jyoung5@us.ibm.com>
Signed-off-by: NJosh Boyer <jwboyer@linux.vnet.ibm.com>

With a multiplatform kernel, once built we always have warp_setup_nand_flash()
called and NDFC probed, no matter what machine we actually run on. This
potentially can cause problems (such as kernel crash), since NDFC is probed at
a warp-predefined address.

Using machine_device_initcall() NAND devices are registered if we run on a warp only.
Signed-off-by: NValentine Barshak <vbarshak@ru.mvista.com>
Signed-off-by: NJosh Boyer <jwboyer@linux.vnet.ibm.com>

This patch creates a common system reset routine for all 40x and 44x
systems. Previously only a 44x routine existed. But since this system
reset via the debug control register is common for 40x and 44x let's
share this code for all those platforms in ppc4xx_soc.c.

This patch also enables CONFIG_4xx_SOC for all 40x and 44x platforms.

Tested on Kilauea (405EX) and Canyonlands (440EX).
Signed-off-by: NStefan Roese <sr@denx.de>
Signed-off-by: NJosh Boyer <jwboyer@linux.vnet.ibm.com>

This patch adds support for the 256k L2 cache found on some IBM/AMCC
4xx PPC's. It introduces a common 4xx SoC file (sysdev/ppc4xx_soc.c)
which currently "only" adds the L2 cache init code. Other common 4xx
stuff can be added later here.

The L2 cache handling code is a copy of Eugene's code in arch/ppc
with small modifications.

Tested on AMCC Taishan 440GX.
Signed-off-by: NStefan Roese <sr@denx.de>
Signed-off-by: NJosh Boyer <jwboyer@linux.vnet.ibm.com>

The AMCC 440EP Yosemite board is very similar to the original AMCC Bamboo
board.  This adds a YOSEMITE option to Kconfig, and reuses the existing
bamboo board support in the kernel.
Signed-off-by: NJosh Boyer <jwboyer@linux.vnet.ibm.com>

Canyonlands is the AMCC 460EX eval board, featuring nearly all of the 460EX
interfaces:

- 1 * PCI (max 66MHz), 2 * PCIe (one 4-lane, one 1-lane)
- 2 * GBit Ethernet with TCP/IP acceleration
- USB 2.0 Host/Device OTG and Host interface
- SATA port
Signed-off-by: NStefan Roese <sr@denx.de>
Signed-off-by: NJosh Boyer <jwboyer@linux.vnet.ibm.com>

Clean up some whitespace issues in the 44x Kconfig file.
Signed-off-by: NJosh Boyer <jwboyer@linux.vnet.ibm.com>

While merging, I found a small bug that I forgot to send. I add an
offset to a value twice.
Signed-off-by: NSean MacLennan <smaclennan@pikatech.com>
Signed-off-by: NJosh Boyer <jwboyer@linux.vnet.ibm.com>

Add the base platform support for the PIKA Warp boards.
Signed-off-by: NSean MacLennan <smaclennan@pikatech.com>
Signed-off-by: NJosh Boyer <jwboyer@linux.vnet.ibm.com>

This patch extends the Ebony and Walnut platform code to instantiate
the existing ds1742 RTC class driver for the DS1743 RTC/NVRAM chip
found on both those boards.  The patch uses a helper function to scan
the device tree and instantiate the appropriate platform_device based
on it, so it should be easy to extend for other boards which have mmio
mapped RTC chips.

Along with this, the device tree binding for the ds1743 chips is
tweaked, based on the existing DS1385 OF binding found at:
	http://playground.sun.com/1275/proposals/Closed/Remanded/Accepted/346-it.txt
Although that document covers the NVRAM portion of the chip, whereas
here we're interested in the RTC portion, so it's not entirely clear
if that's a good model.

This implements only RTC class driver support - that is /dev/rtc0, not
/dev/rtc, and the low-level get/set time callbacks remain
unimplemented.  That means in order to get at the clock you will
either need a modified version of hwclock which will look at
/dev/rtc0, or you'll need to configure udev to symlink rtc0 to rtc.
Signed-off-by: NDavid Gibson <david@gibson.dropbear.id.au>
Signed-off-by: NJosh Boyer <jwboyer@linux.vnet.ibm.com>