Pull Microblaze updates from Michal Simek:
 - use asm-generic/io.h and fix intc/timer code
 - clean platform handling
 - enable some syscalls

* tag 'microblaze-3.15-rc1' of git://git.monstr.eu/linux-2.6-microblaze:
  microblaze: Use asm-generic/io.h
  microblaze: Remove platform folder
  microblaze: Remove generic platform
  microblaze: Sort Kconfig options
  microblaze: Move DTS file to common location at boot/dts folder
  microblaze: Fix compilation failure because of release_thread
  microblaze: Fix sparse warning because of missing cpu.h header
  microblaze: Make timer driver endian aware
  microblaze: Make intc driver endian aware
  microblaze: Wire-up new system calls sched_setattr/getattr
  microblaze: Wire-up preadv/pwritev in syscall table
  microblaze: Enable pselect6 syscall
  microblaze: Drop architecture-specific declaration of early_printk
  microblaze: Rename global function heartbeat()

Using generic io.h will narrow down code duplication
in architecture io.h.

- define PCI_IOBASE
- remove non existing pci_io_base extern

Signed-off-by: Michal Simek <michal.simek@xilinx.com>

There is no reason to use platform folder structure now.
Everything is OF driven.

Signed-off-by: Michal Simek <michal.simek@xilinx.com>

All microblaze platforms are using the same configuration
that's why there is no reason to use generic platform.

Signed-off-by: Michal Simek <michal.simek@xilinx.com>

Kconfig options should be sorted.

Signed-off-by: Michal Simek <michal.simek@xilinx.com>

Preparation step for arch/microblaze/platform/ cleanup.

Signed-off-by: Michal Simek <michal.simek@xilinx.com>

Warning log:
In file included from arch/microblaze/include/asm/thread_info.h:21:0,
                 from include/linux/thread_info.h:54,
                 from include/asm-generic/preempt.h:4,
                 from arch/microblaze/include/generated/asm/preempt.h:1,
                 from include/linux/preempt.h:18,
                 from include/linux/spinlock.h:50,
                 from include/linux/seqlock.h:35,
                 from include/linux/time.h:5,
                 from include/linux/stat.h:18,
                 from include/linux/sysfs.h:20,
                 from include/linux/kobject.h:21,
                 from include/linux/device.h:17,
                 from include/linux/node.h:17,
                 from include/linux/cpu.h:16,
                 from arch/microblaze/kernel/process.c:11:
arch/microblaze/include/asm/processor.h:125:20: warning: no previous prototype
for 'release_thread' [-Wmissing-prototypes]

Signed-off-by: Michal Simek <michal.simek@xilinx.com>

Warning:
arch/microblaze/kernel/process.c:164:6: warning: symbol 'arch_cpu_idle'
was not declared. Should it be static?

Signed-off-by: Michal Simek <michal.simek@xilinx.com>

Detect endianess directly on the hardware and use
ioread/iowrite functions.

Signed-off-by: Michal Simek <michal.simek@xilinx.com>

Detect endianess directly on the hardware and use
ioread/iowrite functions.

Signed-off-by: Michal Simek <michal.simek@xilinx.com>