This adds trivial support for the GPIOs implemented through the baseboard
CPLD, used for driving the button matrix.
Signed-off-by: NPaul Mundt <lethal@linux-sh.org>

We'll be adding more headers for this board, so move this over to its own
directory.
Signed-off-by: NPaul Mundt <lethal@linux-sh.org>

As non-PFC chips are added that may support IRQs, pass through to the
generic helper instead of triggering the WARN_ON().
Signed-off-by: NPaul Mundt <lethal@linux-sh.org>

Some controllers will need to be initialized lazily due to pinmux
constraints, while others may simply have no need to be brought online if
there are no backing devices for them attached. In this case it's still
necessary to be able to reserve their hardware vector map before dynamic
IRQs get a hold of them.
Signed-off-by: NPaul Mundt <lethal@linux-sh.org>

The SH-X3 proto CPU has all of the external IRQ and IRL pins muxed, make
sure that we're able to grab them before attempting to register their
respective IRQ controllers.
Signed-off-by: NPaul Mundt <lethal@linux-sh.org>

This adds in support for GPIO/pinmux on the SH-X3 proto CPUs. This will
subsequently be used by the x3proto board.
Signed-off-by: NPaul Mundt <lethal@linux-sh.org>

This adds in hardware IRQ auto-distribution support for SH-X3 proto CPUs,
following the SH7786 support.
Signed-off-by: NPaul Mundt <lethal@linux-sh.org>

This shuffles some of the shared bits out of the 7786 code and in to a
shared SH-X3 support file. Presently just for userimask, but also a good
place for the IRQ balancing wrappers.
Signed-off-by: NPaul Mundt <lethal@linux-sh.org>

Rewrite the SH-X3 proto CPU clock framework for clkdev.
Signed-off-by: NPaul Mundt <lethal@linux-sh.org>

Update the SH kernel to keep SR.BL set until the VBR
register has been initialized. Useful to allow boot
of the kernel even though exceptions are pending.

Without this patch there is a window of time when
exceptions such as NMI are enabled but no exception
handlers are installed.

This patch modifies both the zImage loader and the
actual kernel to boot with BL=1, but the zImage
loader is modfied in such a way that the init_sr
value is unchanged to not break the zImage loader
provided by kexec.

Tested on sh7724 Ecovec and on the SH4AL-DSP core
included in sh7372.
Signed-off-by: NMagnus Damm <damm@opensource.se>
Signed-off-by: NPaul Mundt <lethal@linux-sh.org>

kfree() in clkdev_drop() function should actually be called with an address of
a struct clk_lookup_alloc object, and not struct clk_lookup, as presently done.
This just happens to work, because "struct clk_lookup cl" is the first
member in struct clk_lookup_alloc.
Signed-off-by: NGuennadi Liakhovetski <g.liakhovetski@gmx.de>
Signed-off-by: NPaul Mundt <lethal@linux-sh.org>

While sh previously had its own debugfs root, there now exists a
common arch_debugfs_dir prototype, so we switch everything over to
that.  Presumably once more architectures start making use of this
we'll be able to just kill off the stub kdebugfs wrapper.
Signed-off-by: NPaul Mundt <lethal@linux-sh.org>

Replace EXTRA_CFLAGS with ccflags-y.
Signed-off-by: Nmatt mooney <mfm@muteddisk.com>
Signed-off-by: NPaul Mundt <lethal@linux-sh.org>

This copies the pci_config_lock idea from x86 over, allowing us to kill
off a couple of existing private locks. At the same time, these need to
be converted to raw spinlocks for -rt kernels, so we make that change at
the same time. This should make it easier for future parts to get the
locking right instead of inevitable ending up with lock type mismatches.
Signed-off-by: NPaul Mundt <lethal@linux-sh.org>

This gets each port handling its MSTP bit, as well as moving the PHY
clock management in to the clock framework.
Signed-off-by: NPaul Mundt <lethal@linux-sh.org>

Some of the existing code is flipping between __raw_xxx() and
pci_{read,write}_reg(). As the latter are just wrappers for the former,
flip over to using them consistently.
Signed-off-by: NPaul Mundt <lethal@linux-sh.org>

Presently we error out if a link is disabled and simply drop the port
registration outright. This follows the PPC changes and simply reports on
the link state on boot, leaving the port registered, in order to more
easily deal with hotplug on future parts.
Signed-off-by: NPaul Mundt <lethal@linux-sh.org>

These settings are properly propagated by the hardware already, so
there's no need to bother with them manually.
Signed-off-by: NPaul Mundt <lethal@linux-sh.org>

The SH7786 PCIe is presently unable to enumerate itself in root complex
mode, and has no visibility through either type 0 or type 1 accesses,
despite having a mostly sensible extended config space for each port.
Attempts to generate type 0 or type 1 config cycles result in completer
aborts, so we're ultimately forced to use SuperHyway transactions
instead.

As each port has a single port <-> device mapping that resolves for any
PCI_SLOT definition, we simply hijack devfn 0 for the SuperHyway
transaction and bump up the devfn limit.

With enumeration of the root complex now possible, we also need to insert
an early fixup to hide the BARs from the kernel. With all of that done,
it's now possible to use the pcieport services with all of the PCIe
ports, which is the first step to power management support.
Signed-off-by: NPaul Mundt <lethal@linux-sh.org>

Previously these IDs were only used by one driver, so there was not much
need for having them generically defined. Now that this will no longer
hold true, move them over.
Signed-off-by: NPaul Mundt <lethal@linux-sh.org>

The spec suggests waiting up to 500ms for the PHY to settle before
testing link state, but practice shows that 100ms is sufficient (this is
the delay value we also use on the other SH-4A PCI controllers, too).
This makes device detection much more reliable, although in the future it
should be a bit faster to simply serialize with a TLP IRQ.
Signed-off-by: NPaul Mundt <lethal@linux-sh.org>

After configuration accesses have been completed deassert the
configuration access enable cleanly.
Signed-off-by: NPaul Mundt <lethal@linux-sh.org>

Signed-off-by: NPaul Mundt <lethal@linux-sh.org>

The _remove() routine is flagged __init_or_module, despite only being
used in a __devexit context. As the rest of the driver is already
balanced out with __devinit, switch to __devexit and __devexit_p()
wrapping.
Signed-off-by: NPaul Mundt <lethal@linux-sh.org>

The current probe/remove definitions are split between __init and
__devexit, make them consistent by switching to __devinit.
Signed-off-by: NPaul Mundt <lethal@linux-sh.org>

The only BKL user in arch/sh protects a single bit,
so we can trivially replace it with test_and_set_bit.
Signed-off-by: NArnd Bergmann <arnd@arndb.de>
Cc: Paul Mundt <lethal@linux-sh.org>
Cc: linux-sh@vger.kernel.org
Signed-off-by: NPaul Mundt <lethal@linux-sh.org>

According to Morimoto-san, this is no longer needed. Revert it.

This reverts commit e0009b0a.
Signed-off-by: NPaul Mundt <lethal@linux-sh.org>

Now that the rest of the socket calls are provided through their own
paths, do the same for sys_recvmmsg. It's unlikely we'll ever be able to
kill off the socketcall path, but this at least permits userspace to
gradually begin migrating.
Signed-off-by: NPaul Mundt <lethal@linux-sh.org>

Linux kernel already has socket syscalls that can be invoked
without the multiplexing sys_socketcall wrapper.
C library wrappers are ready to use them directly. It needs just
to define the missing syscall numbers and provide the related entries
into the syscalls table, like sh64 aleady does.
Signed-off-by: NFrancesco Rundo <francesco.rundo@st.com>
Signed-off-by: NCarmelo Amoroso <carmelo.amoroso@st.com>
Signed-off-by: NPaul Mundt <lethal@linux-sh.org>

This patch modify x_plate_ohms to correct value for tsc2007 panel,
and removed un-necessary ts_get_pendown_state()
Signed-off-by: NKuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Signed-off-by: NPaul Mundt <lethal@linux-sh.org>

As the help for the config option suggests, this option really shouldn't
be set by default for any recent distribution as it changes the layout
of sysfs. I spotted this while running debian when udev got very
confused by the sysfs layout and failed to create some device nodes.
Signed-off-by: NMatt Fleming <matt@console-pimps.org>
Signed-off-by: NPaul Mundt <lethal@linux-sh.org>

Now that the resource assignment issues are resolved, we can finally wire
up the small third memory window -- in the future we may reclaim this for
MSI.
Signed-off-by: NPaul Mundt <lethal@linux-sh.org>

An IORESOURCE_IO was missing here, which meant that we weren't properly
establishing the I/O window for this particular slot. With this
corrected, cards with I/O BARs have them actually assigned and
accessible.
Signed-off-by: NPaul Mundt <lethal@linux-sh.org>

Certain memory windows are only available for 32-bit space, so skip over
these in 29-bit mode. This will severely restrict the amount of memory
that can be mapped, but since a boot loader bug makes booting in 29-bit
mode close to impossible anyways, everything is ok.
Signed-off-by: NPaul Mundt <lethal@linux-sh.org>

This bumps up the low address to match the physical memory windows for
SHway<->PCIe transfers. The previous implementation was banking on a 1:1
virt<->phys SHway mapping, which doesn't apply here.
Signed-off-by: NPaul Mundt <lethal@linux-sh.org>

This attempts a more complete port reset, building on top of the existing
approach.
Signed-off-by: NPaul Mundt <lethal@linux-sh.org>

Signed-off-by: NMatt Fleming <matt@console-pimps.org>
Signed-off-by: NPaul Mundt <lethal@linux-sh.org>

Conflicts:
	arch/sh/kernel/process_32.c
Signed-off-by: NPaul Mundt <lethal@linux-sh.org>