Cc: Ryan Mallon <rmallon@gmail.com>
Signed-off-by: NShawn Guo <shawn.guo@linaro.org>
Acked-by: NH Hartley Sweeten <hsweeten@visionengravers.com>

The syscon access functions are no longer used outside of the core
EP93xx code. Move their definitions into the SoC code.
Signed-off-by: NRyan Mallon <rmallon@gmail.com>
Reviewed-by: NMika Westerberg <mika.westerberg@iki.fi>
Acked-by: NHartley Sweeten <hsweeten@visionengravers.com>

Both the Snapper CL15 and EDB93xx audio drivers set the same audio
configuration in ep93xx_i2s_acquire. Remove the arguments to
ep93xx_i2s_acquire so that the audio drivers no longer need the
EP93XX_SYSCON defines exported.
Signed-off-by: NRyan Mallon <rmallon@gmail.com>
Cc: Liam Girdwood <lrg@ti.com>
Cc: Mark Brown <broonie@opensource.wolfsonmicro.com>
Reviewed-by: NMika Westerberg <mika.westerberg@iki.fi>
Acked-by: NHartley Sweeten <hsweeten@visionengravers.com>

Both the Snapper CL15 and EDB93xx audio drivers set the same audio
configuration in ep93xx_i2s_acquire. Remove the arguments to
ep93xx_i2s_acquire so that the audio drivers no longer need the
EP93XX_SYSCON defines exported.

Cc: Hartley Sweeten <hsweeten@visionengravers.com>
Cc: Mika Westerberg <mika.westerberg@iki.fi>
Cc: Liam Girdwood <lrg@ti.com>
Cc: Mark Brown <broonie@opensource.wolfsonmicro.com>
Signed-off-by: NRyan Mallon <rmallon@gmail.com>
Signed-off-by: NMark Brown <broonie@opensource.wolfsonmicro.com>

Hook these platforms restart code into the new restart hook rather than
using arch_reset().
Acked-by: NH Hartley Sweeten <hsweeten@visionengravers.com>
Signed-off-by: NRussell King <rmk+kernel@arm.linux.org.uk>

Add platform support for the EP93xx AC97 controller driver.
Signed-off-by: NMika Westerberg <mika.westerberg@iki.fi>
Acked-by: NH Hartley Sweeten <hsweeten@visionengravers.com>
Acked-by: NRyan Mallon <ryan@bluewatersys.com>
Signed-off-by: NMark Brown <broonie@opensource.wolfsonmicro.com>

Create a core.c __init function to handle the physmap flash
registration for all the ep93xx platforms.  Also, modify all
the ep93xx platforms to use this new function.

This simplifies all the ep93xx platform init code and reduces
the size of the kernel when including multiple ep93xx boards.
Signed-off-by: NH Hartley Sweeten <hsweeten@visionengravers.com>
Acked-by: NRyan Mallon <ryan@bluewatersys.com>
Acked-by: NMartin Guy <martinwguy@gmail.com>
Acked-by: NHubert Feurstein <hubert.feurstein@contec.at>
Signed-off-by: NRussell King <rmk+kernel@arm.linux.org.uk>

Add core support for EP93xx i2s audio
Signed-off-by: NRyan Mallon <ryan@bluewatersys.com>
Acked-by: NH Hartley Sweeten <hsweeten@visionengravers.com>
Acked-by: NLiam Girdwood <lrg@slimlogic.co.uk>
Signed-off-by: NMark Brown <broonie@opensource.wolfsonmicro.com>

This patch adds platform side support code for the EP93xx SPI
driver. This includes clock, resources and muxing. There is a new
function: ep93xx_register_spi() which can be used by board support
code to register new SPI devices for the board.

This patch depends on patch
  5998/1 ep93xx: added chip revision reading function

Cc: Ryan Mallon <ryan@bluewatersys.com>
Cc: David Brownell <dbrownell@users.sourceforge.net>
Cc: Grant Likely <grant.likely@secretlab.ca>
Signed-off-by: NMika Westerberg <mika.westerberg@iki.fi>
Acked-by: NH Hartley Sweeten <hsweeten@visionengravers.com>
Acked-by: NMartin Guy <martinwguy@gmail.com>
Signed-off-by: NRussell King <rmk+kernel@arm.linux.org.uk>

Added a new function: ep93xx_chip_revision() which reads chip revision
from the sysconfig register.
Signed-off-by: NMika Westerberg <mika.westerberg@iki.fi>
Acked-by: NH Hartley Sweeten <hsweeten@visionengravers.com>
Signed-off-by: NRussell King <rmk+kernel@arm.linux.org.uk>

Add the core support needed by the ep93xx matrix keypad driver.

The keypad driver unfortunately was merged early and the core
support is missing.  The clkdev support has been resolved and
is now merged.  This adds the platform device to the ep93xx
core and supplies the functions needed to acquire/free the gpio
pins and actually enable/disable the controller peripheral.
Signed-off-by: NH Hartley Sweeten <hsweeten@visionengravers.com>
Acked-by: NRyan Mallon <ryan@bluewatersys.com>
Signed-off-by: NRussell King <rmk+kernel@arm.linux.org.uk>

Remove unused prototype for ep93xx_init_time().  This function
is not defined in the kernel.
Signed-off-by: NH Hartley Sweeten <hsweeten@visionengravers.com>
Acked-by: NRyan Mallon <ryan@bluewatersys.com>
Signed-off-by: NRussell King <rmk+kernel@arm.linux.org.uk>

Update the ep93xx i2c support:

  1) The platform init code passes the configuration data for the
     i2c-gpio driver.  This allows any gpio pin do be used for the
     sda and scl pins.  It also allows the platform to specify the
     udelay and timeout.
  2) Program the gpio configuration register to enable/disable the
     open drain drivers.  Note that this really only works if the
     sda and scl pins are set to EP93XX_GPIO_LINE_EEDAT and
     EP93XX_GPIO_LINE_EECLK.
  3) Update the edb93xx.c platform init to use the new support.
Signed-off-by: NH Hartley Sweeten <hsweeten@visionengravers.com>
Acked-by: NRyan Mallon <ryan@bluewatersys.com>
Signed-off-by: NRussell King <rmk+kernel@arm.linux.org.uk>

Signed-off-by: NRyan Mallon <ryan@bluewatersys.com>
Acked-by: NH Hartley Sweeten <hsweeten@visionengravers.com>
Cc: Daniele Venzano <linux@brownhat.org>
Cc: Russell King <rmk@arm.linux.org.uk>
Cc: Krzysztof Helt <krzysztof.h1@poczta.fm>
Signed-off-by: NAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>

The EP93xx features two PWMs (one on the EP9307) with the following
features:

  * Configurable dual output
  * Separate input clocks for each PWM output
  * 16-bit resolution
  * Programmable pulse width (duty cycle), interval (frequency), and
    polarity

This adds the necessary core support as well as the driver.  A sysfs
interface is provided to control the PWM outputs.
Signed-off-by: NMatthieu Crapet <mcrapet@gmail.com>
Signed-off-by: NH Hartley Sweeten <hsweeten@visionengravers.com>
Acked-by: NRyan Mallon <ryan@bluewatersys.com>
Signed-off-by: NRussell King <rmk+kernel@arm.linux.org.uk>

Change the reg argument of the ep93xx_syscon_swlocked_write function
to be an __iomem pointer. Fixes a number of build warnings.
Signed-off-by: NRyan Mallon <ryan@bluewatersys.com>
Acked-by: NH Hartley Sweeten <hsweeten@visionengravers.com>
Signed-off-by: NRussell King <rmk+kernel@arm.linux.org.uk>

Add core functions to handle writes to the ep93xx software locked
registers.

There are a number of registers in the EP93xx System Controller
that require a write to the software lock register before they
can be updated. This patch adds a number of exported functions
to the ep93xx core that handle this access.

The software locked clock divider registers, VidClkDiv, MIRClkDiv,
I2SClkDiv and KeyTchClkDiv would typically involve writing a
specific value to the register. To support this the
ep93xx_syscon_swlocked_write() function is provided.

For the DeviceCfg register it's more typical to only need to
set or clear a single bit. A generic ep93xx_devcfg_set_clear()
function is provided to handle both operations. Two inline
functions, ep93xx_devcfg_set_bits() and ep93xx_devcfg_clear_bits()
are also provided to improve code readability.

In addition, the remaining bits in the System Controller Device
Config Register have been documented and the previously defined
names shortened.

All code paths that use this functionality have been updated
except for arch/arm/kernel/crunch.c. That code is in a context
switch path, which is not reentrant, so it is safe against itself.

Cc: Lennert Buytenhek <buytenh@wantstofly.org>
Cc: Matthias Kaehlcke <matthias@kaehlcke.net>
Signed-off-by: NH Hartley Sweeten <hsweeten@visionengravers.com>
Acked-by: NRyan Mallon <ryan@bluewatersys.com>
Signed-off-by: NRussell King <rmk+kernel@arm.linux.org.uk>

Fix build warnings due to struct i2c_board_info in <mach/platform.h>

Patch "5311/1: add core support for built in i2c bus" is causing 11 of
39 the build warnings with Kautobuild for ep93xx_defconfig on kernel
2.6.29-rc5-git4.  This patch fixes it.
Signed-off-by: NH Hartley Sweeten <hsweeten@visionengravers.com>
Signed-off-by: NRussell King <rmk+kernel@arm.linux.org.uk>

Allow the ep93xx platform init code to register the built-in i2c bus.

The EP93xx processor has two GPIO pins dedicated for an I2C bus. This
patch registers the platform supplied i2c_board_info and the necessary
platform_device information for the i2c-gpio driver to use these pins.
Signed-off-by: NH Hartley Sweeten <hsweeten@visionengravers.com>
Acked-by: NRyan Mallon <ryan@bluewatersys.com>
Signed-off-by: NRussell King <rmk+kernel@arm.linux.org.uk>

All EP93xx based systems can support Ethernet. This patch moves
the platform_device setup from the various board support files
into the core support file. The Ethernet driver data still remains
in the individual platform setup files to allow specific platform
configuration.

This also adds Ethernet support to the edb9302, edb9312, and
edb9315 platforms.
Signed-off-by: NH Hartley Sweeten <hsweeten@visionengravers.com>
Signed-off-by: NRussell King <rmk+kernel@arm.linux.org.uk>

This just leaves include/asm-arm/plat-* to deal with.
Signed-off-by: NRussell King <rmk+kernel@arm.linux.org.uk>

Signed-off-by: NLennert Buytenhek <buytenh@wantstofly.org>
Signed-off-by: NRussell King <rmk+kernel@arm.linux.org.uk>

The Cirrus Logic ep93xx is an ARM SoC that includes an ethernet MAC
-- this patch adds a driver for that ethernet MAC.
Signed-off-by: NLennert Buytenhek <buytenh@wantstofly.org>
Signed-off-by: NJeff Garzik <jeff@garzik.org>

Patch from Lennert Buytenhek

Add an initial implementation of the clk_* API for the cirrus ep93xx
to the tree.  The initial implementation is somewhat minimal, with the
intention of extending it as we go along.
Signed-off-by: NLennert Buytenhek <buytenh@wantstofly.org>
Signed-off-by: NRussell King <rmk+kernel@arm.linux.org.uk>

Patch from Lennert Buytenhek

This patch adds support for the Cirrus ep93xx series of CPUs.  The
ep93xx is an ARM920T based CPU with two VICs, PL010 based UARTs,
IrDA, MaverickCrunch floating point coprocessor, between 24 and 64
GPIOs, ethernet, OHCI USB and, depending on the model, pcmcia, raster
engine, graphics accelerator, IDE controller and a bunch of other
stuff.

This patch adds the core ep93xx support code, and support for the
Glomation GESBC-9312-sx and the Technologic Systems TS-72xx SBCs.
Signed-off-by: NLennert Buytenhek <buytenh@wantstofly.org>
Signed-off-by: NRussell King <rmk+kernel@arm.linux.org.uk>