Patch 5879/1: ep93xx: define magic numbers for pll1 and pll2 broke
the ep93xx build due to one missing rename of EP93XX_SYSCON_CLOCK_SET2.
The correct name should be EP93XX_SYSCON_CLKSET2.
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>

Currently <asm/mach/irq.h> is included by core.c. This header
includes <linux/irq.h> and defines a number of internal functions.
These internal functions are not needed by this file. Change the
include so that we just get what is needed.
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>

Add support for Bluewater Systems EP9315 based Snapper CL15 single board
computer module.
Signed-off-by: NRyan Mallon <ryan@bluewatersys.com>
Acked-by: NHartley Sweeten <hartleys@visionengravers.com>
Signed-off-by: NRussell King <rmk+kernel@arm.linux.org.uk>

Add support for the Simplemachines EP9307 based Sim.One board.

Cc: Hartley Sweeten <hartleys@visionengravers.com>
Cc: Sergio Sorrenti <sergio.sorrenti@gmail.com>
Signed-off-by: NRyan Mallon <ryan@bluewatersys.com>
Acked-by: NHartley Sweeten <hartleys@visionengravers.com>
Signed-off-by: NRussell King <rmk+kernel@arm.linux.org.uk>

Add defines for the pll register magic numbers that determine if
the pll's are bypassed and if pll2 is enabled.  Rename the clock
set registers to more closely match the datasheet.  Also, remove
the unnecessary braces since each conditional statement is a single
statement.
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>

Add the platform init code to register the pwm devices that exist
on the various edb93xx development boards.
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>

Use pr_fmt to prefix kernel output with the module name.
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>

Use pr_fmt to prefix kernel output with the module name.
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>

Use pr_fmt to prefix kernel output with the module name and change
all printk messages to pr_<level> format.
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>

This driver was merged before the ep93xx core support was added
for the keypad clock and acquiring/releasing the necessary gpio's.
Now that the proper support is in the ep93xx core this driver
needs to be updated to work correctly.

Summary of changes:
  1) Remove some unused members from the platform data.
  2) Remove the custom KEY macro and use the ones available in
     <linux/input/matrix_keypad.h>
  3) Remove the keypad_{readl/writel} macros and just use
     __raw_{readl/writel} directly.
  4) Update the clk_set_rate() call to work with the core support.
  5) Cleanup the probe routine and remove some unneeded messages.
  6) Use the ep93xx core functions to acquire and release the gpio's.
  7) Fix the clk_get() call to get the keypad clock.
Signed-off-by: NH Hartley Sweeten <hsweeten@visionengravers.com>
Signed-off-by: NDmitry Torokhov <dtor@mail.ru>

Just for the sake of consistency across the ep93xx-tree.
Signed-off-by: NHubert Feurstein <h.feurstein@gmail.com>
Acked-by: NH Hartley Sweeten <hsweeten@visionengravers.com>
Signed-off-by: NRussell King <rmk+kernel@arm.linux.org.uk>

Just for the sake of consistency across the ep93xx-tree.
Signed-off-by: NHubert Feurstein <h.feurstein@gmail.com>
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>

Signed-off-by: NJean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
Acked-by: NH Hartley Sweeten <hsweeten@visionengravers.com>
Signed-off-by: NRussell King <rmk+kernel@arm.linux.org.uk>

Remove unnecessary code in ep93xx_gpio_ab_irq_handler().

The desc calculation for gpio port B was left in when the following
commit was merged.

commit d8aa0251
Author: Dmitry Baryshkov <dbaryshkov@gmail.com>
Date:   Thu Oct 9 13:36:24 2008 +0100

    [ARM] 5298/1: Drop desc_handle_irq()

It's not needed so remove it.
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>

Fix a build error due to a typo (missing comma) in:

	ARM: 5754/1: ep93xx: update i2c 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>

The clock generation system in the ep93xx uses two external oscillator's
and two internal PLLs to derive all the internal clocks.  Many of these
internal clocks can be stopped to save power.

This introduces a "parent" hierarchy for the clocks so that the users
count can be correctly tracked for power management.

The "parent" for the video clock can either be one of the PLL outputs
or the external oscillator.  In order to correctly track the "parent"
for the video clock calc_clk_div() needed to be modified.  It now
returns an error code if the desired rate cannot be generated.
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>

Most of the EP93XX_GPIO_*_INT_* register defines in ep93xx-regs.h
not required due to how the ep93xx core and gpiolib support handle
gpio interrupts.  Remove the defines to prevent future confusion.
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 #define's for the EP93XX_*_PHYS_BASE addresses to use
macros for easier readability.
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>

Add Contec Micro9-Slim support

Cc: Ryan Mallon <ryan@bluewatersys.com>

Requires: 5750/1
Signed-off-by: NHubert Feurstein <hubert.feurstein@contec.at>
Acked-by: NH Hartley Sweeten <hsweeten@visionengravers.com>
Signed-off-by: NRussell King <rmk+kernel@arm.linux.org.uk>

Update Contec Micro9 platform code

Cc: Ryan Mallon <ryan@bluewatersys.com>

Requires: 5749/1
Signed-off-by: NHubert Feurstein <hubert.feurstein@contec.at>
Acked-by: NH Hartley Sweeten <hsweeten@visionengravers.com>
Signed-off-by: NRussell King <rmk+kernel@arm.linux.org.uk>

Update Contec Micro9 maintainer and add entry in MAINTAINERS

Cc: Ryan Mallon <ryan@bluewatersys.com>

Requires: 5744/1
Signed-off-by: NHubert Feurstein <hubert.feurstein@contec.at>
Acked-by: NH Hartley Sweeten <hsweeten@visionengravers.com>
Acked-by: NManfred Gruber <m.gruber@tirol.com>
Signed-off-by: NRussell King <rmk+kernel@arm.linux.org.uk>

From: Ryan Mallon <ryan@bluewatersys.com>

Change the gpio_to_irq and irq_to_gpio static inline functions to
macros so that they can be used in variable initialisers.
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>

This adds the missing Kconfig options for the first SDRAM bank address
on ep93xx boards.

Cc: Hubert Feurstein <(address hidden)>
Signed-off-by: H Hartley Sweeten <(address hidden)>
Acked-by: Ryan Mallon <(address hidden)>
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 kernel.h macro DIV_ROUND_CLOSEST performs the computation
(x + d/2)/d but is perhaps more readable.

The semantic patch that makes this change is as follows:
(http://www.emn.fr/x-info/coccinelle/)

// <smpl>
@haskernel@
@@

@depends on haskernel@
expression x,__divisor;
@@

- (((x) + ((__divisor) / 2)) / (__divisor))
+ DIV_ROUND_CLOSEST(x,__divisor)
// </smpl>
Signed-off-by: NJulia Lawall <julia@diku.dk>
Acked-by: NH Hartley Sweeten <hsweeten@visionengravers.com>
Signed-off-by: NRussell King <rmk+kernel@arm.linux.org.uk>

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>

Update the NOR flash support for TS-7200.

The TS-7200 models all have 16-bit NOR flash.  Update the platform
init to support this.

Remove the private TS72XX_NOR_* defines and use the common ep93xx
defines for the external chip select physical base address instead.

Move the NOR flash registration into a static __init function.  When
the NAND flash support is updated this function will also be used
to register the NAND flash for the TS-7250 and TS-7260.
Tested-by: NMatthieu Crapet <mcrapet@gmail.com>
Signed-off-by: NH Hartley Sweeten <hsweeten@visionengravers.com>
Signed-off-by: NRussell King <rmk+kernel@arm.linux.org.uk>

The EP93xx has two gpio pins specifically assigned to drive
external LEDs.  Add core support for these LEDs.

On the EDB93xx development boards, the rdled is connected to
an external reset circuit.  Turning this led on for an extended
amount of time will cause the circuit to issue a manual reset.

Refer to Cirrus App Note AN258 for more information.

	http://www.cirrus.com/en/pubs/appNote/AN258REV2.pdf

This led can be safely used as the system heartbeat with the
ledtrig-heartbeat driver.

	echo heartbeat > /sys/class/leds/platform:rdled/trigger

The grled can be used for any desired purpose.
Tested-by: NMatthieu Crapet <mcrapet@gmail.com>
Signed-off-by: NH Hartley Sweeten <hsweeten@visionengravers.com>
Signed-off-by: NRussell King <rmk+kernel@arm.linux.org.uk>

Add missing register defines for ep93xx keypad clock 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>

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>

Fix a number of build errors in ep93xx gpio.c due to to missing irq.h
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>

The MAC address for the ep93xx ethernet driver can be optionally
copied from registers in the controller when booting.  Due to
[ARM] 5573/1: ep93xx: ensure typesafe io, the cast for the source
address is no longer needed.

EP93XX_ETHERNET_BASE is typed as a (void __iomem __force *) so
memcpy_fromio() needs to be used instead of memcpy().
Signed-off-by: NH Hartley Sweeten <hsweeten@visionengravers.com>
Signed-off-by: NRussell King <rmk+kernel@arm.linux.org.uk>

The EP93XX_VIC{1/2}_BASE defines are now typesafe due to
[ARM] 5573/1: ep93xx: ensure typesafe io.  The (void *) cast
is not needed when calling vic_init().
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>

To ensure typesafe io, the enable_reg variable should be a
void __iomem pointer not u32.
Signed-off-by: NH Hartley Sweeten <hsweeten@visionengravers.com>
Signed-off-by: NRussell King <rmk+kernel@arm.linux.org.uk>

arch/arm/mach-ep93xx/include/mach/hardware.h
  1. Properly name the include files so that they are loaded
     from the <mach/*> directory and not the local directory.
  2. Remove including the ts72xx.h header.  This header is not
     generic to the ep93xx platform.  It should only be included
     by the ts72xx specific files that require it.  The only
     two users in the tree are arch/arm/mach-ep93xx/ts72xx.c
     and drivers/mtd/nand/ts7250.c.

arch/arm/mach-ep93xx/include/mach/ts72xx.h
  1. <linux/io.h> should already be included by any user of this
     header.  Doing the include here hides it from being needed
     by the calling source file.

arch/arm/mach-ep93xx/core.c
  1. Remove unnecessary headers.  They were probably included
     originally due to cut-and-paste from other files.
  2. <linux/io.h> should be included not <mach/gpio.h>

arch/arm/mach-ep93xx/adsphere.c
arch/arm/mach-ep93xx/edb93xx.c
arch/arm/mach-ep93xx/gesbc9312.c
arch/arm/mach-ep93xx/micro9.c
arch/arm/mach-ep93xx/ts72xx.c
  1. Remove unnecessary headers.

arch/arm/mach-ep93xx/ts72xx.c
  1. Remove unnecessary headers.
  2. Add platform specific header <mach/ts72xx.h>.

drivers/mtd/nand/ts7250.c
  1. <linux/io.h> should be included not <asm/io.h>.
  2. Add platform specific header <mach/ts72xx.h>.

Cc: Ryan Mallon <ryan@bluewatersys.com>
Signed-off-by: NH Hartley Sweeten <hsweeten@visionengravers.com>
Signed-off-by: NRussell King <rmk+kernel@arm.linux.org.uk>

<linux/io.h> was getting included by <mach/ts72xx.h>, is should be
included by this file.
Signed-off-by: NH Hartley Sweeten <hsweeten@visionengravers.com>
Signed-off-by: NRussell King <rmk+kernel@arm.linux.org.uk>

Add clkdev support for the ep93xx_keypad driver.

A matrix keypad driver for the ep93xx just got merged via the
input subsystem group.  For this driver to work the keypad clock
needs to be added to the ep93xx clkdev support.  In order to
accomplish this the following changes are implemented:

  1) Move the EP93XX_EXT_*_RATE defines to mach/include/hardware.h.
  2) Add EP93XX_KEYTCHCLK_DIV{4/16} for the keypad driver.
  3) Add support for programmable clocks (set_rate() callback).
  4) Add clk_keypad for the keypad driver.
  5) tab indent the clk_lookup table for easier reading.
  6) Add the set_rate() callback to program the keypad clock.
     This callback is generalized since the ADC clock (touchscreen)
     can use the same callback.
  7) Use the ep93xx_syscon_swlocked_write() core function for updating
     the software locked register.
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>