Signed-off-by: NMichal Simek <monstr@monstr.eu>

This patch is based on patch from Steve Magnani.

There were bug for compiled-in rootfs. We have to move
moving rootfs which is in BSS section to _ebss section
which is at the end of kernel and then clear bss section
not vice-versa.
Signed-off-by: NMichal Simek <monstr@monstr.eu>

This patch fixed parsing early parameters because
current implementation does that early parse DTS
command line and then parse CMDLINE line which is compiled-in.

For case that DTS doesn't contain command line is
copied command line from kernel with is done in prom.c
that's why I can remove it from machine_early_init.
Signed-off-by: NMichal Simek <monstr@monstr.eu>

A polarity reversal in the __KERNEL__ guard prevents the __HAVE_ARCH
flags from being defined in kernel compilation.

I noticed that there's now an option for assembly-optimized versions of
memcpy and memmove. I believe this may be buggy; when I turn it on, all
my printk output gets smashed together, as if the newlines aren't getting
copied.
Signed-off-by: NSteven J. Magnani <steve@digidescorp.com>
Signed-off-by: NMichal Simek <monstr@monstr.eu>

Extra LDFLAGS from user space building may cause kernel failed
to compile.
Signed-off-by: NThomas Chou <thomas@wytron.com.tw>
Signed-off-by: NMichal Simek <monstr@monstr.eu>

This patch fix problem with bad zone initialization.
This bug wasn't perform because Microblaze doesn't
define CONFIG_ZONE_DMA and ZONE_NORMAL was 0 for this case
that's why free_area_init works with correct values.

Original message:
I believe that the switch from ZONE_DMA (== 0) to ZONE_NORMAL
broke the free area initialization.
Signed-off-by: NSteven J. Magnani <steve@digidescorp.com>
Signed-off-by: NMichal Simek <monstr@monstr.eu>

Microblaze does not support the Linux DMA mapping API
at this point, so disable CONFIG_NO_DMA. This lets
us use the generic dma-mapping-broken.h implementation
instead of providing a different copy.

Any drivers that try to use DMA mapping now get
omitted from Kconfig or produce a link error, rather
than failing silently at run time.
Signed-off-by: NArnd Bergmann <arnd@arndb.de>
Signed-off-by: NMichal Simek <monstr@monstr.eu>

We need to define set_restore_sigmask() in order to
get pselect and ppoll. Also, the setup_frame function
can not be used when __NR_sigreturn is not defined.
Signed-off-by: NArnd Bergmann <arnd@arndb.de>
Signed-off-by: NMichal Simek <monstr@monstr.eu>

This changes the function prototypes in the checksum code
to have the usual prototypes, typically by turning int
arguments into __wsum.

Also change csum_partial_copy_from_user() to operate
on the right address space and export ip_fast_csum,
which is used in modular networking code.

The new version is now sparse-clean including endianess
checks.
Signed-off-by: NArnd Bergmann <arnd@arndb.de>
Signed-off-by: NMichal Simek <monstr@monstr.eu>

This function was actually causing harm, by hiding
errors about invalid sized get_user/put_user accesses.
Signed-off-by: NArnd Bergmann <arnd@arndb.de>
Signed-off-by: NMichal Simek <monstr@monstr.eu>

linux/types.h breaks the uclibc build, so don't
include it here.
Signed-off-by: NArnd Bergmann <arnd@arndb.de>
Signed-off-by: NMichal Simek <monstr@monstr.eu>

Some device drivers call this, so add a macro
that pretends to do this. Since there is no
MMU support, it won't actually result in an
uncached mapping, though.
Signed-off-by: NArnd Bergmann <arnd@arndb.de>
Signed-off-by: NMichal Simek <monstr@monstr.eu>

The security subsystem has its own initcalls, which
need support in vmlinux.lds.S.
Signed-off-by: NArnd Bergmann <arnd@arndb.de>
Signed-off-by: NMichal Simek <monstr@monstr.eu>

This function is neither declared nor used anywhere
outside of ppc32, so remove it from microblaze.
Signed-off-by: NArnd Bergmann <arnd@arndb.de>
Signed-off-by: NMichal Simek <monstr@monstr.eu>

The whole point of the __bad_xchg declaration in
system.h is to give a linker error when a variable
of invalid size is passed to __xchg. The out
of line definition in traps.c defeats this purpose
and does not any value, so remove it here.
Signed-off-by: NArnd Bergmann <arnd@arndb.de>
Signed-off-by: NMichal Simek <monstr@monstr.eu>

The microblaze signal handling code gets some __user
pointers wrong, as shown by sparse.
This adds the annotations where appropriate and
change sys_rt_sigreturn to correctly pass a user
stack down to do_sigaltstack instead of a kernel
structure.
Signed-off-by: NArnd Bergmann <arnd@arndb.de>
Signed-off-by: NMichal Simek <monstr@monstr.eu>

Some device drivers require the symbols _ebss, kernel_thread,
__page_offset or ___range_ok, so export them.
Signed-off-by: NArnd Bergmann <arnd@arndb.de>
Signed-off-by: NMichal Simek <monstr@monstr.eu>

Signed-off-by: NMichal Simek <monstr@monstr.eu>

Signed-off-by: NMichal Simek <monstr@monstr.eu>

+ Fix typographic fault.
Signed-off-by: NMichal Simek <monstr@monstr.eu>

Signed-off-by: NMichal Simek <monstr@monstr.eu>

Some drivers using of_register_platform_driver() wrapper break on sparc
because the wrapper isn't in the header file.  This patch moves it from
Microblaze and PowerPC implementations and makes it common code.

Fixes this sparc64 allmodconfig build error (at least):

drivers/leds/leds-gpio.c: In function `gpio_led_init':
drivers/leds/leds-gpio.c:295: error: implicit declaration of function `of_register_platform_driver'
drivers/leds/leds-gpio.c: In function `gpio_led_exit':
drivers/leds/leds-gpio.c:311: error: implicit declaration of function `of_unregister_platform_driver'
Signed-off-by: NGrant Likely <grant.likely@secretlab.ca>
Acked-by: NDavid S. Miller <davem@davemloft.net>
Cc: Michal Simek <monstr@monstr.eu>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Stephen Rothwell <sfr@canb.auug.org.au>
Cc: Richard Purdie <rpurdie@rpsys.net>
Signed-off-by: NAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>

Signed-off-by: NJohn Linn <john.linn@xilinx.com>
Signed-off-by: NMichal Simek <monstr@monstr.eu>

The C99 specification states in section 6.11.5:

The placement of a storage-class specifier other than at the
beginning of the declaration specifiers in a declaration is an
obsolescent feature.
Signed-off-by: NTobias Klauser <tklauser@distanz.ch>
Signed-off-by: NMichal Simek <monstr@monstr.eu>

This patch modifies parameter of microblaze_read() from 'void' to 'struct
clocksource *cs', which fixes compile warning for incompatible parameter type.
Signed-off-by: NColy Li <coly.li@suse.de>
Cc: Michal Simek <monstr@monstr.eu>
Cc: Ingo Molnar <mingo@elte.hu>
Signed-off-by: NMichal Simek <monstr@monstr.eu>

Signed-off-by: NMichal Simek <monstr@monstr.eu>

For noMMU kernel this change nothing bring but this change
helps with MMU synchronization.
Signed-off-by: NMichal Simek <monstr@monstr.eu>

It is not necessary to check cpuinfo.use_dcache because
this checking is done in function which call that functions
Signed-off-by: NMichal Simek <monstr@monstr.eu>

Signed-off-by: NMichal Simek <monstr@monstr.eu>

Signed-off-by: NMichal Simek <monstr@monstr.eu>

retries reaches -1, so the iowrite occurrs upon timeout.
Acked-by: NJohn Williams <john.williams@petalogix.com>
Signed-off-by: NRoel Kluin <roel.kluin@gmail.com>
Signed-off-by: NMichal Simek <monstr@monstr.eu>

Makefile contained different cpu config flag
than is in Kconfig.auto in platform folder
Signed-off-by: NMichal Simek <monstr@monstr.eu>

Signed-off-by: NMichal Simek <monstr@monstr.eu>

This change is due to upcomming MMU merge
Signed-off-by: NMichal Simek <monstr@monstr.eu>

Signed-off-by: NMichal Simek <monstr@monstr.eu>

This change remove sparse errors.
Signed-off-by: NMichal Simek <monstr@monstr.eu>

CHECK   arch/microblaze/kernel/traps.c
arch/microblaze/kernel/traps.c:37:47: warning: Using plain integer as NULL pointer
CC      arch/microblaze/kernel/traps.o
Signed-off-by: NMichal Simek <monstr@monstr.eu>

This change is important for easier merge with Microblaze MMU code.
Signed-off-by: NMichal Simek <monstr@monstr.eu>

Signed-off-by: NMichal Simek <monstr@monstr.eu>

Uncached shadow feature is not supported in current
kernel code that's why I removed it.
Signed-off-by: NMichal Simek <monstr@monstr.eu>