Add support for the DMA blocks in the S3C64XX series of CPUS,
which are based on the ARM PL080 PrimeCell system.

Unfortunately, these DMA controllers diverge from the PL080
design by adding another DMA controller register and
configuration for OneNAND.
Signed-off-by: NBen Dooks <ben@simtec.co.uk>
Signed-off-by: NBen Dooks <ben-linux@fluff.org>

Add the address definitions for S3C64XX_AHB_CONx and
SPCON registers for use in the PM code.
Signed-off-by: NBen Dooks <ben-linux@fluff.org>

Add defines for the registers that control the GPIO pins that are
run the memory interface.
Signed-off-by: NBen Dooks <ben-linux@fluff.org>

Add the register defines for the sleep and power control
functions in the S3C64XX SYSCON register block.
Signed-off-by: NBen Dooks <ben-linux@fluff.org>

Add the definitions for the SPCON register in the
GPIO block.
Signed-off-by: NBen Dooks <ben-linux@fluff.org>

Add GPIO register definitions for SPCONSLP and SLPEN
for controlling the state of the pins over sleep.
Signed-off-by: NBen Dooks <ben-linux@fluff.org>

Add definitions for the EINT group registers and move the EINT IRQ
register definitions out of arch/arm/plat-s3c64xx/irq-eint.c so that
they are available for re-use with PM and the other code.
Signed-off-by: NBen Dooks <ben-linux@fluff.org>

Add the modem registers and a virtual mapping for the
modem block. This is is required as there are registers
that control the LCD block that need to be saved over
suspend as well as interrupt controls.
Signed-off-by: NBen Dooks <ben-linux@fluff.org>

Some of the rate selection logic in s3c64xx_setrate_clksrc uses what
appears to be parent clock selection logic. This patch corrects it.

I also added a check for overly large dividers to prevent them from
changing unrelated clocks.
Signed-off-by: NWerner Almesberger <werner@openmoko.org>
Signed-off-by: NBen Dooks <ben-linux@fluff.org>

Fix the following sparse warnings in arch/arm/plat-s3c64xx/irq.c

arch/arm/plat-s3c64xx/irq.c:210:23: warning: incorrect type in initializer (different address spaces)
arch/arm/plat-s3c64xx/irq.c:210:23:    expected void *reg_base
arch/arm/plat-s3c64xx/irq.c:210:23:    got void [noderef] <asn:2>*regs
arch/arm/plat-s3c64xx/irq.c:215:2: warning: incorrect type in argument 1 (different address spaces)
arch/arm/plat-s3c64xx/irq.c:215:2:    expected void const volatile [noderef] <asn:2>*<noident>
arch/arm/plat-s3c64xx/irq.c:215:2:    got void *
Signed-off-by: NBen Dooks <ben-linux@fluff.org>

Fix the following sparse warnings in s3c6400-clock.c:

39:12: warning: symbol 'clk_ext_xtal_mux' was not declared. Should it be static?
66:12: warning: symbol 'clk_fout_apll' was not declared. Should it be static?
81:19: warning: symbol 'clk_mout_apll' was not declared. Should it be static?
91:12: warning: symbol 'clk_fout_epll' was not declared. Should it be static?
106:19: warning: symbol 'clk_mout_epll' was not declared. Should it be static?
126:19: warning: symbol 'clk_mout_mpll' was not declared. Should it be static?
148:12: warning: symbol 'clk_dout_mpll' was not declared. Should it be static?
Signed-off-by: NBen Dooks <ben-linux@fluff.org>

The clock list for the USB host bus clock was in the wrong order,
move clk_48m to position 0.
Signed-off-by: NBen Dooks <ben@simtec.co.uk>
Signed-off-by: NBen Dooks <ben-linux@fluff.org>

The usb-host-bus clock should be named usb-bus-host.
Signed-off-by: NBen Dooks <ben@simtec.co.uk>
Signed-off-by: NBen Dooks <ben-linux@fluff.org>

The USB OHCI host device expects the IRQ definition to be named
IRQ_USBH, so rename the S3C64XX IRQ header to match.
Signed-off-by: NBen Dooks <ben@simtec.co.uk>
Signed-off-by: NBen Dooks <ben-linux@fluff.org>

arch_initcall() runs after the machine init function which means that
any configuration of GPIO pins must currently be done later on, for
example in callbacks from drivers. Move the initialisation earlier in
order to allow machines to configure GPIOs directly in their init
functions rather than having to have a callback invoked later on.

Some other ARM platforms use this method. Other solutions for this
include providing a special interface for setting up GPIOs en masse,
adding callbacks to do the GPIO configuration from devices and doing
the GPIO configuration implicitly.
Signed-off-by: NMark Brown <broonie@opensource.wolfsonmicro.com>
Signed-off-by: NBen Dooks <ben-linux@fluff.org>

It's an initcall and does not need to be exported.
Signed-off-by: NMark Brown <broonie@opensource.wolfsonmicro.com>
Signed-off-by: NBen Dooks <ben-linux@fluff.org>

Signed-off-by: NMark Brown <broonie@opensource.wolfsonmicro.com>
Signed-off-by: NBen Dooks <ben-linux@fluff.org>

Set the GPIO pin mode to external interrupt when configuring
an IRQ_EINT's IRQ type.
Signed-off-by: NBen Dooks <ben-linux@fluff.org>

Currently the unmask function for EINT interrupts was setting the mask
bit rather than clearing it.  This was also previously reported and
fixed by Kyungmin Park <kyungmin.park@samsung.com> and others.
Acked-By: NBen Dooks <ben-linux@fluff.org>
Signed-off-by: NMark Brown <broonie@opensource.wolfsonmicro.com>
Signed-off-by: NRussell King <rmk+kernel@arm.linux.org.uk>

Fix IRQ_EINT_GROUP which has an extra _ in it and
an error in the IRQ offset.
Signed-off-by: NMatt Hsu <matt_hsu@openmoko.org>
[ben-linux@fluff.org: rewrite description]
Signed-off-by: NBen Dooks <ben-linux@fluff.org>

Select CPU_V6 with the S3C64XX series.
Signed-off-by: NBen Dooks <ben-linux@fluff.org>

As per Russell King's last review comment, find and remove
all unnecessary includes of <linux/delay.h> in the files
that do not need them.
Signed-off-by: NBen Dooks <ben-linux@fluff.org>

Select the correct EINT configuration register when configuring
the external interrupt level/edge type.
Signed-off-by: NMatt Hsu <matt_hsu@openmoko.org>
[ben-linux@fluff.org: description improvement]
Signed-off-by: NBen Dooks <ben-linux@fluff.org>

Correct the PLL field masks to ensure the PLL functions return the
right value.
Signed-off-by: NKyungmin Park <kyungmin.park@samsung.com>
[ben-linux@fluff.org: improve the description text]
Signed-off-by: NBen Dooks <ben-linux@fluff.org>

The S3C64XX timer is running at the wrong rate due to the
assumptions made in the timer initialisation about the way
the pwm dividers work. This means that time on the S3C64XX
runs twice as fast as it should.

Fix the problem by moving to using the clk framework to setup
the pwm timer clock muxes, as the pwm-clock code has all the
necessary knowledge of how the timer clock inputs are routed.
Signed-off-by: NBen Dooks <ben-linux@fluff.org>

Add a standard helper to configure the LCD output pins for a 24BPP
display with VSYNC/HSYNC/VDEN.
Signed-off-by: NBen Dooks <ben-linux@fluff.org>

Add device definition and support functions for the
second i2c device (i2c1). If this is selected, the first
i2c bus will become index 0 instead of index -1.
Signed-off-by: NBen Dooks <ben-linux@fluff.org>

Fix the definition of the MMC0 register shift and mask in the
CLKSRC register.
Signed-off-by: NBen Dooks <ben-linux@fluff.org>

Add common gpio setup for i2c bus 1 on all current
S3C64XX architectures.
Signed-off-by: NBen Dooks <ben-linux@fluff.org>

Add the necessary device initialisation information
for I2C device 0.
Signed-off-by: NBen Dooks <ben-linux@fluff.org>

GPIO register and configuration definitions for GPIO
banks N, O, P and Q.
Signed-off-by: NBen Dooks <ben-linux@fluff.org>

GPIO register and configuration definitions for GPIO
banks G, H, I and J.
Signed-off-by: NBen Dooks <ben-linux@fluff.org>

GPIO register and configuration definitions for GPIO
banks D, E and F.
Signed-off-by: NBen Dooks <ben-linux@fluff.org>

GPIO register and configuration definitions for GPIO
banks A, B and C.
Signed-off-by: NBen Dooks <ben-linux@fluff.org>

Add apropriate enable call for clk_48m.
Signed-off-by: NBen Dooks <ben-linux@fluff.org>

The clk_fout_epll clock wasn't registered as part of the initial clock
work, which can cause problems if it is used by one of the hardware
blocks.
Signed-off-by: NBen Dooks <ben-linux@fluff.org>

Add new GPIO configuration calls that mesh with the
new gpiolib support.
Signed-off-by: NBen Dooks <ben-linux@fluff.org>

Add gpiolib registration for the GPIOs available on the
S3C64XX platform
Signed-off-by: NBen Dooks <ben-linux@fluff.org>

The gpiolib driver keeps its chip array to itself
and having a separate array for s3c-only gpios stops
any non-s3c gpio being used in one of the s3c specific
configuration calls.
Signed-off-by: NBen Dooks <ben-linux@fluff.org>

Add definitions for the external interrupt groups which accompany
the original IRQ_EINT from the s3c24xx series.
Signed-off-by: NBen Dooks <ben-linux@fluff.org>