Move all declarations of free_initmem() to linux/mm.h so that there's only one
and it's used by everything.
Signed-off-by: NDavid Howells <dhowells@redhat.com>
cc: linux-c6x-dev@linux-c6x.org
cc: microblaze-uclinux@itee.uq.edu.au
cc: linux-sh@vger.kernel.org
cc: sparclinux@vger.kernel.org
cc: x86@kernel.org
cc: linux-mm@kvack.org

Disintegrate asm/system.h for C6X.
Signed-off-by: NDavid Howells <dhowells@redhat.com>
Signed-off-by: NMark Salter <msalter@redhat.com>
cc: linux-c6x-dev@linux-c6x.org

There was a latent typo in the C6X KSTK_EIP and KSTK_ESP macros which
caused a problem with a new patch which used them. The broken definitions
were of the form:

  #define KSTK_FOO(tsk) (task_pt_regs(task)->foo)

Note the use of task vs tsk. This actually worked before because the
only place in the kernel which used these macros passed in a local
pointer named task.
Signed-off-by: NMark Salter <msalter@redhat.com>

The C6X IRQ support was copied almost verbatim from the PowerPC virtual IRQ
code. The PowerPC code was used as the basis for generic irq_domain support,
so this patch mostly copies what what done to arch/powerpc by Grant Likely
in his irq_domain patch series.
Signed-off-by: NMark Salter <msalter@redhat.com>
Signed-off-by: NGrant Likely <grant.likely@secretlab.ca>
Cc: Aurelien Jacquiot <a-jacquiot@ti.com>
Cc: Thomas Gleixner <tglx@linutronix.de>

Recent memblock related commits require the following C6X changes:

  * commit 24aa0788
    asm/memblock.h no longer required

  * commit 1440c4e2
    memblock_analyze() no longer needed to update total size

  * commit fe091c20
    memblock_init() no longer needed
Signed-off-by: NMark Salter <msalter@redhat.com>

All SoCs provide an area of device configuration registers called the DSCR. The
location of specific registers as well as their use varies considerably from
implementation to implementation. Rather than having to rely on additional
SoC-specific DSCR code for each new supported SoC, this code generalize things
as much as possible using device tree properties. Initialization must take
place early on (setup_arch time) in case the event timer device needs to be
enable via the DSCR.
Signed-off-by: NMark Salter <msalter@redhat.com>
Signed-off-by: NAurelien Jacquiot <a-jacquiot@ti.com>
Acked-by: NArnd Bergmann <arnd@arndb.de>

This patch provides a soc_ops struct which provides hooks for SoC functionality
which doesn't fit well into other places.
Signed-off-by: NMark Salter <msalter@redhat.com>
Signed-off-by: NAurelien Jacquiot <a-jacquiot@ti.com>
Acked-by: NArnd Bergmann <arnd@arndb.de>

Original port to early 2.6 kernel using TI COFF toolchain.
Brought up to date by Mark Salter <msalter@redhat.com>
Signed-off-by: NAurelien Jacquiot <a-jacquiot@ti.com>
Signed-off-by: NMark Salter <msalter@redhat.com>
Acked-by: NArnd Bergmann <arnd@arndb.de>

Original port to early 2.6 kernel using TI COFF toolchain.
Brought up to date by Mark Salter <msalter@redhat.com>
Signed-off-by: NAurelien Jacquiot <a-jacquiot@ti.com>
Signed-off-by: NMark Salter <msalter@redhat.com>
Acked-by: NArnd Bergmann <arnd@arndb.de>

Original port to early 2.6 kernel using TI COFF toolchain.
Brought up to date by Mark Salter <msalter@redhat.com>
Signed-off-by: NAurelien Jacquiot <a-jacquiot@ti.com>
Signed-off-by: NMark Salter <msalter@redhat.com>
Acked-by: NArnd Bergmann <arnd@arndb.de>

Original port to early 2.6 kernel using TI COFF toolchain.
Brought up to date by Mark Salter <msalter@redhat.com>
Signed-off-by: NAurelien Jacquiot <a-jacquiot@ti.com>
Signed-off-by: NMark Salter <msalter@redhat.com>
Acked-by: NArnd Bergmann <arnd@arndb.de>

Original port to early 2.6 kernel using TI COFF toolchain.
Brought up to date by Mark Salter <msalter@redhat.com>
Signed-off-by: NAurelien Jacquiot <a-jacquiot@ti.com>
Signed-off-by: NMark Salter <msalter@redhat.com>
Acked-by: NArnd Bergmann <arnd@arndb.de>

The C6X SoCs contain several PLL controllers each with up to 16 clock outputs
feeding into the cores or peripheral clock domains. The hardware is very similar
to arm/mach-davinci clocks. This is still a work in progress which needs to be
updated once device tree clock binding changes shake out.
Signed-off-by: NMark Salter <msalter@redhat.com>
Signed-off-by: NAurelien Jacquiot <a-jacquiot@ti.com>
Acked-by: NArnd Bergmann <arnd@arndb.de>

Original port to early 2.6 kernel using TI COFF toolchain.
Brought up to date by Mark Salter <msalter@redhat.com>
Signed-off-by: NAurelien Jacquiot <a-jacquiot@ti.com>
Signed-off-by: NMark Salter <msalter@redhat.com>
Acked-by: NArnd Bergmann <arnd@arndb.de>

Original port to early 2.6 kernel using TI COFF toolchain.
Brought up to date by Mark Salter <msalter@redhat.com>
Signed-off-by: NAurelien Jacquiot <a-jacquiot@ti.com>
Signed-off-by: NMark Salter <msalter@redhat.com>
Acked-by: NArnd Bergmann <arnd@arndb.de>
[msalter@redhat.com: add include of linux/module.h to sys_c6x.c]
Signed-off-by: NMark Salter <msalter@redhat.com>

Original port to early 2.6 kernel using TI COFF toolchain.
Brought up to date by Mark Salter <msalter@redhat.com>
Signed-off-by: NAurelien Jacquiot <a-jacquiot@ti.com>
Signed-off-by: NMark Salter <msalter@redhat.com>
Reviewed-by: NThomas Gleixner <tglx@linutronix.de>
Acked-by: NArnd Bergmann <arnd@arndb.de>

Original port to early 2.6 kernel using TI COFF toolchain.
Brought up to date by Mark Salter <msalter@redhat.com>
Signed-off-by: NAurelien Jacquiot <a-jacquiot@ti.com>
Signed-off-by: NMark Salter <msalter@redhat.com>
Reviewed-by: NThomas Gleixner <tglx@linutronix.de>
Acked-by: NArnd Bergmann <arnd@arndb.de>

Original port to early 2.6 kernel using TI COFF toolchain.
Brought up to date by Mark Salter <msalter@redhat.com>
Signed-off-by: NAurelien Jacquiot <a-jacquiot@ti.com>
Signed-off-by: NMark Salter <msalter@redhat.com>
Acked-by: NArnd Bergmann <arnd@arndb.de>

Original port to early 2.6 kernel using TI COFF toolchain.
Brought up to date by Mark Salter <msalter@redhat.com>
Signed-off-by: NAurelien Jacquiot <a-jacquiot@ti.com>
Signed-off-by: NMark Salter <msalter@redhat.com>
Acked-by: NArnd Bergmann <arnd@arndb.de>

Original port to early 2.6 kernel using TI COFF toolchain.
Brought up to date by Mark Salter <msalter@redhat.com>

The C6X architecture currently lacks an MMU so memory management is relatively
simple. There is no bus snooping between L2 and main memory but coherent DMA
memory is supported by making regions of main memory uncached. If such a region
is desired, it can be specified on the commandline with a "memdma=" argument.
Signed-off-by: NAurelien Jacquiot <a-jacquiot@ti.com>
Signed-off-by: NMark Salter <msalter@redhat.com>
Acked-by: NArnd Bergmann <arnd@arndb.de>

Original port to early 2.6 kernel using TI COFF toolchain.
Brought up to date by Mark Salter <msalter@redhat.com>
Signed-off-by: NAurelien Jacquiot <a-jacquiot@ti.com>
Signed-off-by: NMark Salter <msalter@redhat.com>
Acked-by: NArnd Bergmann <arnd@arndb.de>