Need to include sched.h to fix the following compilation error
if FSL_IFC is enabled on ARM64 machine.

In file included from include/linux/mmzone.h:9:0,
                 from include/linux/gfp.h:5,
                 from include/linux/kmod.h:22,
                 from include/linux/module.h:13,
                 from drivers/memory/fsl_ifc.c:22:
drivers/memory/fsl_ifc.c: In function ‘check_nand_stat’:
include/linux/wait.h:165:35: error: ‘TASK_NORMAL’ undeclared (first use in this function)
 #define wake_up(x)   __wake_up(x, TASK_NORMAL, 1, NULL)
                                   ^
drivers/memory/fsl_ifc.c:136:3: note: in expansion of macro ‘wake_up’
   wake_up(&ctrl->nand_wait);
   ^
include/linux/wait.h:165:35: note: each undeclared identifier is reported only once for each function it appears in
 #define wake_up(x)   __wake_up(x, TASK_NORMAL, 1, NULL)
                                   ^
drivers/memory/fsl_ifc.c:136:3: note: in expansion of macro ‘wake_up’
   wake_up(&ctrl->nand_wait);
   ^

Analysis is as follows:
I put some instrumental code and get the
following .h files inclusion sequence:

In file included from ./arch/arm64/include/asm/compat.h:25:0,
                 from ./arch/arm64/include/asm/stat.h:23,
                 from include/linux/stat.h:5,
                 from include/linux/module.h:10,
                 from drivers/memory/fsl_ifc.c:23:
include/linux/sched.h:113:1: error: expected ‘=’, ‘,’, ‘;’, ‘asm’ or ‘__attribute__’ before ‘struct’
 struct sched_attr {
 ^

CONFIG_COMPAT=y is enabled while 39 and 48 bit VA is selected.
When 42 bit VA is selected, it does not enable CONFIG_COMPAT=y

In ./arch/arm64/include/asm/stat.h:23, it has
"#ifdef CONFIG_COMPAT"
"#include <asm/compat.h>"
"..."
"#endif"

Since ./arch/arm64/include/asm/stat.h does not
include ./arch/arm64/include/asm/compat.h,
then it will not include include/linux/sched.h
Hence we have to manually add "#include <linux/sched.h>"
in drivers/memory/fsl_ifc.c
Signed-off-by: NLijun Pan <Lijun.Pan@freescale.com>
Signed-off-by: NArnd Bergmann <arnd@arndb.de>

IFC IO accressor are set at run time based
on IFC IP registers endianness.IFC node in
DTS file contains information about
endianness.
Signed-off-by: NJaiprakash Singh <b44839@freescale.com>
Signed-off-by: NScott Wood <scottwood@freescale.com>
Acked-by: NBrian Norris <computersforpeace@gmail.com>

Freescale's QorIQ T Series processors support 8 IFC chip selects
within a memory map backward compatible with previous P Series
processors which supported only 4 chip selects.
Signed-off-by: NAaron Sierra <asierra@xes-inc.com>
Signed-off-by: NBrian Norris <computersforpeace@gmail.com>

 Freescale IFC controller has been used for mpc8xxx. It will be used
 for ARM-based SoC as well. This patch moves the driver to driver/memory
 and fix the header file includes.

  Also remove module_platform_driver() and  instead call
  platform_driver_register() from subsys_initcall() to make sure this module
  has been loaded before MTD partition parsing starts.
Signed-off-by: NPrabhakar Kushwaha <prabhakar@freescale.com>
Acked-by: NArnd Bergmann <arnd@arndb.de>
Signed-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>

None of these files are actually using any __init type directives
and hence don't need to include <linux/init.h>.  Most are just a
left over from __devinit and __cpuinit removal, or simply due to
code getting copied from one driver to the next.

The one instance where we add an include for init.h covers off
a case where that file was implicitly getting it from another
header which itself didn't need it.
Signed-off-by: NPaul Gortmaker <paul.gortmaker@windriver.com>
Signed-off-by: NBenjamin Herrenschmidt <benh@kernel.crashing.org>

arch/powerpc/sysdev/fsl_ifc.c:66:38: warning: incorrect type in initializer (different base types)
arch/powerpc/sysdev/fsl_ifc.c:66:38:    expected restricted __be32 [usertype] cspr
arch/powerpc/sysdev/fsl_ifc.c:66:38:    got unsigned int
arch/powerpc/sysdev/fsl_ifc.c:67:21: warning: restricted __be32 degrades to integer
arch/powerpc/sysdev/fsl_ifc.c:67:39: warning: restricted __be32 degrades to integer
Signed-off-by: NKim Phillips <kim.phillips@freescale.com>
Signed-off-by: NKumar Gala <galak@kernel.crashing.org>

CONFIG_HOTPLUG is going away as an option.  As a result, the __dev*
markings need to be removed.

This change removes the use of __devinit, __devexit_p, __devinitdata,
__devinitconst, and __devexit from these drivers.

Based on patches originally written by Bill Pemberton, but redone by me
in order to handle some of the coding style issues better, by hand.

Cc: Bill Pemberton <wfp5p@virginia.edu>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Paul Mackerras <paulus@samba.org>
Signed-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>

IFC may have one or two interrupts.  If two interrupt specifiers are
present, the first is the "common" interrupt (CM_EVTER_STAT), and the
second is the NAND interrupt (NAND_EVTER_STAT).  If there is only one, that
interrupt reports both types of event.
Signed-off-by: NPrabhakar Kushwaha <prabhakar@freescale.com>
Signed-off-by: NKumar Gala <galak@kernel.crashing.org>

Integrated Flash Controller supports various flashes like NOR, NAND
and other devices using NOR, NAND and GPCM Machine available on it.
IFC supports four chip selects.
Signed-off-by: NDipen Dudhat <Dipen.Dudhat@freescale.com>
Signed-off-by: NScott Wood <scottwood@freescale.com>
Signed-off-by: NLi Yang <leoli@freescale.com>
Signed-off-by: NLiu Shuo <b35362@freescale.com>
Signed-off-by: NPrabhakar Kushwaha <prabhakar@freescale.com>
Signed-off-by: NKumar Gala <galak@kernel.crashing.org>