Build errors similar this appeared in todays kautobuild for the above
targets:

In file included from arch/arm/include/asm/pgtable.h:461,
                 from arch/arm/mach-pxa/generic.c:26:
include/asm-generic/pgtable.h: In function 'ptep_test_and_clear_young':
include/asm-generic/pgtable.h:29: error: dereferencing pointer to incomplete type

None of the .c files including asm/pgtable.h with this error is using
this header, so simply remove the include.
Signed-off-by: NRussell King <rmk+kernel@arm.linux.org.uk>

The core of PXA955 is PJ4. Add new PJ4 support. And add new macro
CONFIG_PXA95x.
Signed-off-by: NHaojian Zhuang <haojian.zhuang@marvell.com>
Signed-off-by: NEric Miao <eric.y.miao@gmail.com>

Introduce 'struct clk' for memory and remove
get_memclk_frequency_10khz().
Signed-off-by: NEric Miao <eric.y.miao@gmail.com>

This is important because on PXA3xx, the physical mapping of SMEMC registers
differs from the one on PXA2xx. In order to get PCMCIA working on both PXA2xx
and PXA320, the PCMCIA driver was adjusted accordingly as well.

Also, various places in the kernel had to be patched to use
__raw_read/__raw_write.
Signed-off-by: NMarek Vasut <marek.vasut@gmail.com>
Acked-by: NHaojian Zhuang <haojian.zhuang@gmail.com>
Signed-off-by: NEric Miao <eric.y.miao@gmail.com>

This patch introduces pxa2xx_map_io() and pxa3xx_map_io() to distinguish
between PXA25x/PXA27x and PXA3xx memory mapping.

Also, fixup for platforms broken after introducing pxa{25x,27x}_map_io()
and pxa3xx_map_io() is included.
Signed-off-by: NMarek Vasut <marek.vasut@gmail.com>
Signed-off-by: NEric Miao <eric.y.miao@gmail.com>

The camera registers start and range are encoded into the platform
device, and are actually handled by ioremap()'ed, thus the mapping
in pxa_map_io() is not necessary.
Signed-off-by: NEric Miao <eric.y.miao@gmail.com>

Up to now, only pxa2xx pcmcia driver is using the API. No other device driver
is using this API in PXA3xx or any other PXA silicons.

Restrict the scope only on pxa2xx and remove the implementation of pxa3xx. So
we can avoid oo much checking on cpuid after more pxa chips supported.
Signed-off-by: NHaojian Zhuang <haojian.zhuang@marvell.com>
Cc: Eric Miao <eric.y.miao@gmail.com>
Signed-off-by: NEric Miao <eric.y.miao@gmail.com>

get_clk_frequency_khz() is used in private cpufreq driver. In order to meet
the change of different pxa silicons, checking cpuid is introduced in
get_clk_frequency_khz(). While more pxa silicons are supported, the workload
of checking cpuid is higher.

So restrict the scope of get_clk_frequency_khz() on pxa2xx. Different pxa
silcions use different private cpufreq driver to avoid too much checking
on cpuid.
Signed-off-by: NHaojian Zhuang <haojian.zhuang@marvell.com>
Cc: Eric Miao <eric.y.miao@gmail.com>
Signed-off-by: NEric Miao <eric.y.miao@gmail.com>

Signed-off-by: NEric Miao <eric.y.miao@gmail.com>

This makes gpio.c fully independent of pxa-regs.h (except for the
virtual address of the registers).
Signed-off-by: NMike Rapoport <mike@compulab.co.il>
Signed-off-by: NEric Miao <eric.miao@marvell.com>

Looks like we have to live with pxa_gpio_mode() for a while, giving
its presence is actually making gpio.c not generic enough, let's
move it temporarily outside before it can be fully purged.
Signed-off-by: NEric Miao <eric.miao@marvell.com>

As Nicolas and Russell pointed out, CLOCK_TICK_RATE is no more
a constant on PXA when multiple processors and platforms are
selected, change TIMER_FREQ in rtc-sa1100.c into a variable.

Since the code to decide the clock tick rate is re-used from
timer.c, introduce a common get_clock_tick_rate() for this.
Signed-off-by: NEric Miao <eric.miao@marvell.com>
Acked-by: NNicolas Pitre <nico@marvell.com>

This avoid the pre-mapping of OHCI controller register space, and the
mapping is made only when necessary (OHCI is probed).
Signed-off-by: NEric Miao <eric.miao@marvell.com>
Signed-off-by: NRussell King <rmk+kernel@arm.linux.org.uk>

1. add a CPUID table in the comment

2. make cpu_is_pxa25x() true for PXA210/250/255/26x

3. PXA210 is treated as PXA25x, all related code modified to
   reflect this
Signed-off-by: NEric Miao <eric.miao@marvell.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>

Remove includes of asm/hardware.h in addition to asm/arch/hardware.h.
Then, since asm/hardware.h only exists to include asm/arch/hardware.h,
update everything to directly include asm/arch/hardware.h and remove
asm/hardware.h.
Signed-off-by: NRussell King <rmk+kernel@arm.linux.org.uk>

Due to the problem of reset status bits being handled by different
registers between pxa2xx and pxa3xx, introduce a global reset_status
variable, initialized by SoC-specific code and later being used by
other drivers.

And also introduce clear_reset_status(), which is used to clear the
corresponding status bits. Pass RESET_STATUS_ALL to clear all bits.
Signed-off-by: NEric Miao <eric.miao@marvell.com>

pxa_set_cken() is now unused, remove it.
Signed-off-by: NRussell King <rmk+kernel@arm.linux.org.uk>

The power manager and core clock registers aren't present in PXA3
CPUs.  Move them out of pxa-regs.h into pxa2xx-regs.h, and include
pxa2xx-regs.h where necessary.
Signed-off-by: NRussell King <rmk+kernel@arm.linux.org.uk>

This is part of the effort moving peripheral registers outside of pxa-regs.h,
and using ioremap() make it possible the same IP can be re-used on different
processors with different registers space

As a result, the fixed mapping in pxa_map_io() is removed.

The regs-lcd.h can actually moved to where closer to pxafb.c but some of its
bit definitions are directly used by various platform code, though this is not
a good style.
Signed-off-by: Neric miao <eric.miao@marvell.com>
Cc: "Antonino A. Daplas" <adaplas@pol.net>
Cc: Russell King <rmk@arm.linux.org.uk>
Signed-off-by: NAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>

Signed-off-by: Neric miao <eric.miao@marvell.com>
Signed-off-by: NRussell King <rmk+kernel@arm.linux.org.uk>

This adds gpiolib support for the PXA architecture:
  - move all GPIO API functions from generic.c into gpio.c
  - convert the gpio_get/set_value macros into inline functions

This makes it easier to hook up GPIOs provided by external chips like
ASICs and CPLDs.
Signed-off-by: NPhilipp Zabel <philipp.zabel@gmail.com>
Signed-off-by: NDavid Brownell <dbrownell@users.sourceforge.net>
Acked-by: NRussell King <rmk+kernel@arm.linux.org.uk>
Cc: Jean Delvare <khali@linux-fr.org>
Cc: Eric Miao <eric.miao@marvell.com>
Cc: Sam Ravnborg <sam@ravnborg.org>
Cc: Haavard Skinnemoen <hskinnemoen@atmel.com>
Cc: Ben Gardner <bgardner@wabtec.com>
Signed-off-by: NAndrew Morton <akpm@linux-foundation.org>
[ Minor ARM fixup from David Brownell folded into this ]
Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>

Signed-off-by: Neric miao <eric.miao@marvell.com>
Signed-off-by: NRussell King <rmk+kernel@arm.linux.org.uk>

The mapping for physical address 0x48000000 is not sufficient
to allow access to the dynamic memory controller configuration
registers on PXA3.  These registers need to be accessed to
reconfigure the SDRAM when waking from a low power mode.
Signed-off-by: NRussell King <rmk+kernel@arm.linux.org.uk>

Considering that generic.c is getting more and more bloated by device
information, moving that part out side will be much cleaner.
Signed-off-by: Neric miao <eric.miao@marvell.com>
Signed-off-by: NRussell King <rmk+kernel@arm.linux.org.uk>

This patch is to move pxamci DMA specific code to corresponding
platform layer because using DRCMRRXMMC/DRCMRTXMMC in pxamci.c makes
the driver code dedicated to platform which is not extensible.

It is applicable to all pxa platforms.
Signed-off-by: NBridge Wu <bridge.wu@marvell.com>
Signed-off-by: NRussell King <rmk+kernel@arm.linux.org.uk>

Signed-off-by: Neric miao <eric.miao@marvell.com>
Signed-off-by: NRussell King <rmk+kernel@arm.linux.org.uk>

Only register the MMC, framebuffer, I2C and FICP devices when the
platform supplies the necessary platform data structures for the
devices.
Signed-off-by: NRussell King <rmk+kernel@arm.linux.org.uk>

pxa_gpio_mode() is a universal call that fiddles with the GAFR
(gpio alternate function register.)  GAFR does not exist on PXA3
CPUs, but instead the alternate functions are controlled via the
MFP support code.

Platforms are expected to configure the MFP according to their
needs in their platform support code rather than drivers.  We
extend this idea to the GAFR, and make the gpio_direction_*()
functions purely operate on the GPIO level.

This means platform support code is entirely responsible for
configuring the GPIOs alternate functions on all PXA CPU types.
Signed-off-by: NRussell King <rmk+kernel@arm.linux.org.uk>

Signed-off-by: Neric miao <eric.y.miao@gmail.com>
Signed-off-by: NRussell King <rmk+kernel@arm.linux.org.uk>

This definition produces processor specific code in generic function
pxa_gpio_mode(), thus creating inconsistencies for support of pxa25x
and pxa27x in a single zImage.

As David Brownell suggests, make it a run-time variable and initialize
at run-time according to the number of GPIOs on the processor. For now
the initialization happens in pxa_init_irq_gpio(),  since there is
already a parameter for that, besides, this is and MUST be earlier
than any subsequent calls to pxa_gpio_mode().
Signed-off-by: Neric miao <eric.y.miao@gmail.com>
Signed-off-by: NRussell King <rmk+kernel@arm.linux.org.uk>

Allow the generic clock support code to fiddle with the CKEN register
and mark pxa_set_cken() deprecated.
Signed-off-by: NRussell King <rmk+kernel@arm.linux.org.uk>

get_lcdclk_frequency_10khz() is now redundant, remove it.  Hide
pxa27x_get_lcdclk_frequency_10khz() from public view.
Signed-off-by: NRussell King <rmk+kernel@arm.linux.org.uk>

Rename pxa25x and pxa27x memory/lcd/core clock functions, and
select the correct version at run time.
Signed-off-by: NRussell King <rmk+kernel@arm.linux.org.uk>

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

The previous implementation was relying on compile time optimizations
based on a constant clock rate.  However, support for different PXA
flavors in the same kernel binary requires that the clock be selected at
run time, so here it is.

Let's move this code to a more appropriate location while at it.
Signed-off-by: NNicolas Pitre <npitre@mvista.com>
Signed-off-by: NRussell King <rmk+kernel@arm.linux.org.uk>

1. for common devices across all the pxa variants, the names
   are changed to be:
     "pxa_device_xxx"

2. for pxa25x or pxa27x specific devices, the names are
   changed to be:
     "pxa25x_device_xxx", or
     "pxa27x_device_xxx"
Signed-off-by: Neric miao <eric.y.miao@gmail.com>
Signed-off-by: NRussell King <rmk+kernel@arm.linux.org.uk>

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

This allows individual CPU support to determine which platform
devices should be registered.  Also fix a copy-n-paste bug in
the I2C power platform device entry.
Signed-off-by: NRussell King <rmk+kernel@arm.linux.org.uk>

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