There was an off-by-1 on the cache alias detection logic on SH-4,
which caused n_aliases to always be 1 even when the page size
precluded the existence of aliases.

With this corrected, 64KB pages happily reports n_aliases == 0, and
hits the appropriate fast paths in the flushing routines.
Signed-off-by: NPaul Mundt <lethal@linux-sh.org>

This adds basic support for SH-X3 SMP (4 CPUs).

More IPI and cache debugging is necessary, mostly interfacing the
d-cache coherency and the I-cache broadcast invalidates. Only for
testing at present!
Signed-off-by: NMagnus Damm <damm@igel.co.jp>
Signed-off-by: NPaul Mundt <lethal@linux-sh.org>

Now that the SMP stubs are in place, call in to the setup code
to be defined by the platform.
Signed-off-by: NPaul Mundt <lethal@linux-sh.org>

Signed-off-by: NMagnus Damm <damm@igel.co.jp>
Signed-off-by: NPaul Mundt <lethal@linux-sh.org>

There was a very preliminary bunch of SMP code scattered around for the
SH7604 microcontrollers from way back when, and it has mostly suffered
bitrot since then. With the tree already having been slowly getting
prepped for SMP, this plugs in most of the remaining platform-independent
bits.
Signed-off-by: NMagnus Damm <damm@igel.co.jp>
Signed-off-by: NPaul Mundt <lethal@linux-sh.org>

This implements initial support for the SMP INTC (particularly
INTC2) controllers.

These are largely implemented as conventional blocks, with
register sets grouped together at fixed strides relative to
the CPU id.
Signed-off-by: NMagnus Damm <damm@igel.co.jp>
Signed-off-by: NPaul Mundt <lethal@linux-sh.org>

This adds the TLB flushing routines for SMP systems, based on
the MIPS implementation, with some additional SH-specific
flush routines.
Signed-off-by: NPaul Mundt <lethal@linux-sh.org>

current_cpu_data uses smp_processor_id() in order to find the
corresponding cpu_data. As the cache descs are all currently
identical, just have this look at probed results from the boot
CPU.
Signed-off-by: NPaul Mundt <lethal@linux-sh.org>

This consolidates the cpu_data definitions and gets rid of the special
boot_cpu_data. It's made a wrapper to the boot CPU, in order to keep
the existing in-tree users happy.
Signed-off-by: NPaul Mundt <lethal@linux-sh.org>

The cpufreq driver banner is currently printed for each CPU, move
it down so it's not as noisy and it's only printed once.
Signed-off-by: NPaul Mundt <lethal@linux-sh.org>

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

The Maple bus is SEGA's proprietary serial bus for peripherals
(keyboard, mouse, controller etc). The bus is capable of some
(limited) hotplugging and operates at up to 2 M/bits.

Drivers of one sort or another existed/exist for 2.4 and a rudimentary
port, which didn't support the 2.6 device driver model was also in
existence.

This driver - for the bus logic itself and for the keyboard (other
drivers will follow) are based on the code and concepts of those old
drivers but have lots of completely rewritten parts.

I have the maple bus code as a built in now as that seems the sane and
rational way to handle something like that - you either want the bus
or you don't.
Signed-off-by: NAdrian McMenamin <adrian@mcmen.demon.co.uk>
Signed-off-by: NPaul Mundt <lethal@linux-sh.org>

This update moves the flash mapping for the Magic Panel into the board
setup. It also removes references to the old MTD mapping option in the
defconfig.

Signed-off by: Markus Brunner <super.firetwister@gmail.com>
Signed-off by: Mark Jonas <toertel@gmail.com>
Signed-off-by: NPaul Mundt <lethal@linux-sh.org>

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

Support CF IDE on R2D-1 boards.
Signed-off-by: NAoi Shinkai <shinkoi2005@gmail.com>
Signed-off-by: NPaul Mundt <lethal@linux-sh.org>

The extended mode TLB requires both 64-bit PTEs and a 64-bit pgprot,
correspondingly, the PGD also has to be 64-bits, so fix that up.

The kernel and user permission bits really are decoupled in early
cuts of the silicon, which means that we also have to set corresponding
kernel permissions on user pages or we end up with user pages that the
kernel simply can't touch (!).

Finally, with those things corrected, really enable MMUCR.ME and
correct the PTEA value (this simply needs to be the upper 32-bits
of the PTE, with the size and protection bit encoding).
Signed-off-by: NPaul Mundt <lethal@linux-sh.org>

Add SH7785 URAM as node 1, follows the SH-X3 change.
Signed-off-by: NPaul Mundt <lethal@linux-sh.org>

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

This fixes up the port calculation logic for non-SuperIO accesses,
before these were always matching the MRSHPC base, now just make
sure the original port is handed back if it's not in the I/O port
range.
Signed-off-by: NPaul Mundt <lethal@linux-sh.org>

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

Get the IRL->IRQ stuff building.
Signed-off-by: NPaul Mundt <lethal@linux-sh.org>

Most boards use 8 or 16-bit access for the LED bank, se7206
needs 32. There's only 8 individual LEDs however, each with
a 'special' value in terms of logical ordering. Go FPGA, go!
Signed-off-by: NPaul Mundt <lethal@linux-sh.org>

The port routines were logically inverted, and the MRSHPC range had
no upper bound, causing 8 and 16-bit port I/O to get mangled.
Signed-off-by: NPaul Mundt <lethal@linux-sh.org>

This adds support for the SH7720 (SH3-DSP) based Magic Panel R2
board.
Signed-off-by: NMarkus Brunner <super.firetwister@gmail.com>
Signed-off by: Mark Jonas <toertel@gmail.com>
Signed-off-by: NPaul Mundt <lethal@linux-sh.org>

Signed-off-by: NKristoffer Ericson <Kristoffer.Ericson@gmail.com>
Signed-off-by: NPaul Mundt <lethal@linux-sh.org>

IRQ0->IRQ3 need to be an IRQ mode for these to work, fix them up.
Signed-off-by: NKristoffer Ericson <Kristoffer.Ericson@gmail.com>
Signed-off-by: NPaul Mundt <lethal@linux-sh.org>

This leads to invalid configurations where both FPU and DSP support
can be enabled in the same kernel, resulting in build failure.
Signed-off-by: NPaul Mundt <lethal@linux-sh.org>

Trivial build fix for when sysfs is disabled.
Signed-off-by: NPaul Mundt <lethal@linux-sh.org>

Get the SH7343 and SH7770 stuff linking again. Both of these still
require proper INTC support.
Signed-off-by: NPaul Mundt <lethal@linux-sh.org>

The kgdb console code requires uart_set_options() and friends, which
are only provided by the serial core when console support is enabled.
These were sitting under CONFIG_SH_KGDB and resulted in a link error
when console support wasn't enabled, work that by rolling the console
routines under CONFIG_SH_KGDB_CONSOLE, which they should have been
all along.
Signed-off-by: NPaul Mundt <lethal@linux-sh.org>

The vector changed, so follow the INTC changes for the new vector.
Signed-off-by: NKristoffer Ericson <Kristoffer.Ericson@gmail.com>
Signed-off-by: NPaul Mundt <lethal@linux-sh.org>

Trivial build fixes for SH7709.
Signed-off-by: NKristoffer Ericson <Kristoffer.Ericson@gmail.com>
Signed-off-by: NPaul Mundt <lethal@linux-sh.org>

Some trivial fixes to get SH7709 + HD64461 building again.
Signed-off-by: NKristoffer Ericson <Kristoffer.Ericson@gmail.com>
Signed-off-by: NPaul Mundt <lethal@linux-sh.org>

Trivial build fixes.
Signed-off-by: NKristoffer Ericson <Kristoffer.Ericson@gmail.com>
Signed-off-by: NPaul Mundt <lethal@linux-sh.org>

Build fixes for the hp6xx APM code, as well as some adjustments for
the battery values.
Signed-off-by: NKristoffer Ericson <Kristoffer.Ericson@gmail.com>
Signed-off-by: NPaul Mundt <lethal@linux-sh.org>

hp6xx_defconfig resync.
Signed-off-by: NKristoffer Ericson <Kristoffer.Ericson@gmail.com>
Signed-off-by: NPaul Mundt <lethal@linux-sh.org>

HP6xx uses OFFCHIP_IRQ_BASE to know the base irq number where non
cpu interrupts should start. This define was in irq.h before, but
since rework got lost. It really belongs inside hd64461.h since
the hp6xx wont work without it.
Signed-off-by: NKristoffer Ericson <Kristoffer.Ericson@gmail.com>
Signed-off-by: NPaul Mundt <lethal@linux-sh.org>

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

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

This patch adds inline versions of writesb(), readsb(), writesw() and
readsw() to include/asm-sh/io.h. Stolen from include/asm-avr32/io.h.

These functions are needed to compile certain device drivers such as
ax88796.
Signed-off-by: NMagnus Damm <damm@igel.co.jp>
Signed-off-by: NPaul Mundt <lethal@linux-sh.org>