Commit graph

1877 commits

Author SHA1 Message Date
Magnus Damm
f251935e02 sh: TMU platform data for sh7770
This patch adds TMU platform data for sh7770. Both clockevent
and clocksource support is enabled.

Signed-off-by: Magnus Damm <damm@igel.co.jp>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-05-12 19:35:59 +09:00
Magnus Damm
5d8728a71f sh: add sh7770_generic_defconfig
This patch adds a generic sh7770 defconfig file.

Signed-off-by: Magnus Damm <damm@igel.co.jp>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-05-12 19:35:51 +09:00
Magnus Damm
0ee8b4d7c7 sh: TMU platform data for sh7763
This patch adds TMU platform data for sh7763. Both clockevent
and clocksource support is enabled.

Signed-off-by: Magnus Damm <damm@igel.co.jp>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-05-12 19:34:40 +09:00
Paul Mundt
9fe5ee0efb sh: clkfwk: Use arch_clk_init() for on-chip clock registration.
CPUs registering on-chip clocks should be using arch_clk_init() with the
new scheme so that the CPUs have the opportunity to establish the
topology prior to the initial root clock rate propagation. This ensures
that CPUs with on-chip clocks that use CLK_ENABLE_ON_INIT are properly
enabled at the initial propagation time, without having to further poke
the root clocks.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-05-12 19:29:04 +09:00
Paul Mundt
f3f8290cb3 sh: clkfwk: Handle clk_get_sys() returning an ERR_PTR.
clk_get() needs to also perform an IS_ERR() check to see whether
clk_get_sys() failed or not.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-05-12 16:07:40 +09:00
Paul Mundt
0dae89572c sh: clkfwk: Wire up clk_get_sys() support.
This stubs in clk_get_sys() from the ARM clkdev implementation.
Tentatively conver the clk_get() lookup code to use this, and once the
rest of the in-tree users are happy with this, it can replace the
fallback lookups.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-05-12 06:18:09 +09:00
Paul Mundt
007e8363b6 sh: clkfwk: Kill off clk_recalc_rate().
The only user for this is the SH-Mobile r_clk, which is now added as a
root clock and can be kicked via propagate_rate() as usual. Given that,
there is no longer any need for the special clk_recalc_rate(), so we kill
it off.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-05-12 06:05:32 +09:00
Paul Mundt
f5c84cf508 sh: clkfwk: Tidy up on-chip clock registration and rate propagation.
This tidies up the set_rate hack that the on-chip clocks were abusing to
trigger rate propagation, which is now handled generically.

Additionally, now that CLK_ENABLE_ON_INIT is wired up where it needs to
be for these clocks, the clk_enable() can go away. In some cases this was
bumping up the refcount higher than it should have been.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-05-12 05:59:27 +09:00
Paul Mundt
aa87aa343f sh: clkfwk: Improve the generic clk_set_parent() implementation.
This causes the generic clk_set_parent() implementation to be a bit more
intelligent. A clk_reparent() is added to move the clock over to the new
parent's sibling list, which then allows the generic rate propagation
code to succeed. This also becomes a nop if the new and old parents are
unchanged.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-05-12 05:51:05 +09:00
Paul Mundt
ae891a4264 sh: clkfwk: Fix up the clk_enable() error path.
There are a couple of instances where a clk_enable() can fail, which the
SH-Mobile code presently handles, but doesn't get reported all the way
back up. This fixes up the return type so the errors make it all the way
down to the drivers.

Additionally, we now also error out properly if the parent enable fails.
Prep work for aggressively turning off unused clocks on boot.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-05-12 05:30:10 +09:00
Paul Mundt
154502e160 sh: clkfwk: Convert SH-Mobile CPUs to use CLK_ENABLE_ON_INIT.
Kill off all of the clk_always_enabled leftovers and use the new flag
directly.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-05-12 05:18:13 +09:00
Paul Mundt
4ff29ff8e8 sh: clkfwk: Consolidate the ALWAYS_ENABLED / NEEDS_INIT mess.
There is no real distinction here in behaviour, either a clock needs to
be enabled on initialiation or not. The ALWAYS_ENABLED flag was always
intended to only apply to clocks that were physically always on and could
simply not be disabled at all from software. Unfortunately over time this
was abused and the meaning became a bit blurry.

So, we kill off both of all of those paths now, as well as the newer
NEEDS_INIT flag, and consolidate on a CLK_ENABLE_ON_INIT. Clocks that
need to be enabled on initialization can set this, and it will purposely
enable them and bump the refcount up.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-05-12 05:14:53 +09:00
Paul Mundt
b1f6cfe48c sh: clkfwk: refactor rate propagation.
This resyncs the rate propagation strategy with the scheme used by the
OMAP clock framework. Child clocks are tracked on a list under each
parent and propagation happens there specifically rather than constantly
iterating over the global clock list.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-05-12 04:27:43 +09:00
Paul Mundt
a02cb230bb sh: clkfwk: Add a followparent_recalc() helper.
This adds a followparent_recalc() helper for clocks that just follow the
parent's rate. Switch over the few CPUs that use this scheme for some of
their clocks.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-05-12 03:50:44 +09:00
Paul Mundt
b68d820143 sh: clkfwk: Make recalc return an unsigned long.
This is prep work for cleaning up some of the rate propagation bits.
Trivial conversion.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-05-12 03:45:08 +09:00
Magnus Damm
ccc195655f sh: TMU platform data for sh7780
This patch adds TMU platform data for sh7780. Both clockevent
and clocksource support is enabled.

Signed-off-by: Magnus Damm <damm@igel.co.jp>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-05-11 22:02:04 +09:00
Magnus Damm
50e2d0d3b4 sh: r7780 highlander clock fixes
Update the r7780 highlander defconfig to fix
PCLK value, while at it fix cmdline on r7785.

Signed-off-by: Magnus Damm <damm@igel.co.jp>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-05-11 22:02:00 +09:00
Magnus Damm
3d6ad46021 sh: multiple vectors per irq - sh7760
Update intc tables and platform data to use one linux irq
per maskable interrupt source instead of keeping the one-to-one
mapping between vectors and linux irqs.

This fixes potential irq masking issues for sh7760 hardware
blocks such as DMAC/TMU2/REF.

Signed-off-by: Magnus Damm <damm@igel.co.jp>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-05-11 21:59:58 +09:00
Magnus Damm
c42f32dca3 sh: TMU platform data for sh7760
This patch adds TMU platform data for sh7760. Both clockevent
and clocksource support is enabled.

Signed-off-by: Magnus Damm <damm@igel.co.jp>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-05-11 18:45:52 +09:00
Magnus Damm
03f408f1aa sh: TMU platform data for sh775x
This patch adds TMU platform data for sh775x. Both clockevent
and clocksource support is enabled.

Signed-off-by: Magnus Damm <damm@igel.co.jp>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-05-11 18:45:49 +09:00
Magnus Damm
53c0054c3f sh: include empty_zero_page in text
Include empty_zero_page in _text. This fixes a problem
introduced by c3e2586b79
which results in broken boot on R2D-Plus.

Signed-off-by: Magnus Damm <damm@igel.co.jp>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-05-11 18:42:14 +09:00
Yoshihiro Shimoda
7bce6c2740 sh: sh7785lcr: fix I2C device address map for 32-bit mode
This fixes up the broken I2C offset in 32-bit mode.
The cause is because the board datasheet had a mistake.

Signed-off-by: Yoshihiro Shimoda <shimoda.yoshihiro@renesas.com>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-05-11 16:56:16 +09:00
Paul Mundt
780f98ff1f sh: Account for INITIAL_JIFFIES when using jiffies clocksource.
In the case where we fall back on the generic jiffies clocksource,
INITIAL_JIFFIES needs to be accounted for so that printk times aren't
completely skewed.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-05-11 12:15:14 +09:00
Paul Mundt
d9d674e500 sh: Fix up typo in arch/sh/kernel/vmlinux.lds.S
.init_ramfs ought to be .init.ramfs, fix it up.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-05-11 12:12:38 +09:00
Paul Mundt
567bb8fd47 sh: Fix up R0 dependence in __arch_swab16/32.
There is nothing in these routines that inherently depends on R0 use.
Given that these routines are inlined, it is rather easy to blow up the
compiler by exhausting the spill class when performing a 64-bit swab.

This presently manifests itself as the following:

CC      fs/ocfs2/suballoc.o
fs/ocfs2/suballoc.c: In function 'ocfs2_reserve_suballoc_bits':
fs/ocfs2/suballoc.c:638: error: unrecognizable insn:
(insn 2793 1230 1231 103 arch/sh/include/asm/swab.h:33 (set (reg:HI 853)
        (subreg:HI (reg:SI 149 macl) 2)) -1 (expr_list:REG_DEAD (reg:SI 149 macl)
        (nil)))
fs/ocfs2/suballoc.c:638: internal compiler error: in extract_insn, at recog.c:1991

This patch switches over to using an arbitrarily assigned register instead.

While the same issue does not exist in the SH-5 case, there is likewise no harm
in having an alternate register used for the byterev/shari pair.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-05-10 14:25:39 +09:00
Paul Mundt
457daa2b66 sh: Hook up cc-cross-prefix support.
This implements a simple case that just iterates through the common
cases, looking at UTS_MACHINE for hints.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-05-10 01:28:01 +09:00
Paul Mundt
b412a49af9 sh: Consolidate the boot link and entry offset definitions.
Consolidate these in a single place in the Kconfig menus. At the same
time, disable their interactivity and set them according to the board
config defaults.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-05-10 01:23:25 +09:00
Paul Mundt
1eca133cc9 sh: Merge the split arch/sh/boot/compressed/ Makefiles.
This kills off the _64 variant and moves the _32 one over as the generic
one to use.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-05-10 00:58:21 +09:00
Paul Mundt
b208835624 sh: Provide a BITS definition, use it in the arch/sh/boot/ Makefiles.
This introduces a BITS export that can handily be picked up by Makefiles
for cleaner sharing. Reflect its use in arch/sh/boot/compressed/ in
preparation for unifying the Makefiles.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-05-10 00:55:45 +09:00
Paul Mundt
a2e76c80d9 sh: Provide a tighter BOOT_LINK_OFFSET definition for the Cayman board.
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-05-10 00:54:39 +09:00
Paul Mundt
20b27fa337 sh: Fix up the sh64 zImage build.
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-05-10 00:36:22 +09:00
Paul Mundt
7b022d07a0 sh: Tidy up the ldscript output format specifier.
Tie this in to the Makefile directly, where we already know what we are
running on. This tidies up the linker script a bit, and is prep work for
unifying the arch/sh/boot/compressed linker scripts.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-05-10 00:25:08 +09:00
Paul Mundt
dce97c8cb2 sh: Move the unified linker script in place, kill off old _64 one.
Just forcefully rename the _32 variant overtop, and kill off the now
unused _64 version.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-05-09 23:36:10 +09:00
Paul Mundt
c3e2586b79 sh: Integrate sh64 bits in vmlinux_32.lds.S.
This adds all of the requisite bits from vmlinux_64.lds.S in to the _32
variant, resulting in a unified and generic linker script that can be
shared across both.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-05-09 23:33:02 +09:00
Paul Mundt
7cd0378ef4 sh: Fix up SHmedia module ELF relocations.
This fixes up the LSB setting for SHmedia branching in updated symbols
when processing module relocations.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-05-09 18:03:37 +09:00
Paul Mundt
1031a3a57e sh: Provide an __sdivsi3_2 export for sh64.
Newer code paths that are heavier in 64-bit math manage to get this
generated by newer compilers, provide a definition and export
accordingly. This is trivially wrapped around the existing __sdivsi3
code.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-05-09 17:57:21 +09:00
Paul Mundt
2bcfffa423 sh: Rename opcode_t to insn_size_t.
This is now clashing with a driver, so just rename it.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-05-09 16:02:08 +09:00
Paul Mundt
6dbe47a170 sh: Provide __read_{read,write}sl() definitions for sh64.
These are presently only defined for sh32, use the plain unoptimized
versions for sh64. Fixes up smsc911x build.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-05-09 14:44:30 +09:00
Paul Mundt
2fedaacdc0 sh: Cleanup irqflags size mismatch on SH-5 build.
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-05-09 14:38:49 +09:00
Peter Griffin
cd89436e54 sh: Add UBC trap vector for SH2A
Signed-off-by: Peter Griffin <pgriffin@mpc-data.co.uk>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-05-09 00:11:33 +09:00
Peter Griffin
ba0d474082 sh: Add ptrace support for NOMMU debugging
Signed-off-by: Peter Griffin <pgriffin@mpc-data.co.uk>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-05-09 00:11:27 +09:00
Kieran Bingham
e73173dbe5 sh: Fix UBC setup and registers for SH2A
Signed-off-by: Kieran Bingham <kieranbingham@gmail.com>
Signed-off-by: Peter Griffin <pgriffin@mpc-data.co.uk>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-05-09 00:09:21 +09:00
Kieran Bingham
be6514c629 sh: Add in some ptrace definitions from GDB.
Plugs in PT_TEXT_END_ADDR/PT_TEXT_ADDR/PT_DATA_ADDR/PT_TEXT_LEN
definitions.

Signed-off-by: Kieran Bingham <kieranbingham@gmail.com>
Signed-off-by: Peter Griffin <pgriffin@mpc-data.co.uk>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-05-09 00:06:03 +09:00
Paul Mundt
3b226e15be sh: Add clock id to sh-sci platform data on SH-Mobile CPUs.
This adds the clock specifier to all of the SH-Mobile sh-sci ports.
Impacted CPUs are SH7343/SH7366/SH7722/SH7723/SH7724.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-05-08 23:28:54 +09:00
Paul Mundt
7b551f9daa sh: Kill off the GENERIC_CALIBRATE_DELAY ifndef.
Now that everyone is using the clock framework directly and we
unconditionally provide our own calibrate_delay() function, having it
wrapped in an ifndef is no longer useful. So, kill it off.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-05-08 22:14:01 +09:00
Paul Mundt
ccdaeb4c8f sh: TMU platform data for SH-X3 proto CPU.
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-05-08 22:09:30 +09:00
Paul Mundt
c3d480ded1 sh: TMU platform data for SH7786.
Wires up all 12 TMU channels, with TMU0 and 1 used as clockevent and
clocksource respectively.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-05-08 21:57:04 +09:00
Paul Mundt
c29418c2ae sh: Always fixup unaligned userspace accesses on sh64.
sh64 has traditionally had this configurable via a Kconfig option
(CONFIG_SH64_USER_MISALIGNED_FIXUP). In practice it has never really been
terribly useful to turn this off, so just get rid of the option entirely.

We leave the sysctl around so we don't end up breaking existing root
file systems, and to allow folks that really want this off to do so at
their own risk.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-05-08 20:32:56 +09:00
Paul Mundt
30d88cf52f sh: Kill off extra cflags Kconfig entry.
There is no real reason to use this anymore, as the build system
generally knows what it is doing with regards to cflags mangling.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-05-08 20:20:56 +09:00
Paul Mundt
6eac1af011 sh: Always select RTC_LIB, not just for SUPERH32.
The RTC_LIB helpers are used in arch/sh/kernel/time.c, which was
previously only the case for the 32-bit variant. Now that this has
become the common implementation, move the RTC_LIB select to reflect
that. Fixes up the sh64 build.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-05-08 19:48:47 +09:00
Paul Mundt
b366328335 sh: Drop dead rules from arch/sh/kernel/Makefile_64.
Several of these options are specific to the SHcompact ISA and will need
to be rewritten for SHmedia if they are to be supported at all. Drop
the impossible rules for now.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-05-08 18:01:03 +09:00
Magnus Damm
47dd6f4439 sh: TMU platform data for sh7723
This patch adds TMU platform data for sh7723. Both clockevent
and clocksource support is enabled. While at it, adjust the
CMT clocksource rating to prioritize the TMU.

Signed-off-by: Magnus Damm <damm@igel.co.jp>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-05-08 17:47:16 +09:00
Magnus Damm
583d1d549f sh: enable TMU clocksource on sh7722
This patch enables the TMU clocksource on sh7722.
To prioritize TMU over CMT we also adjust the CMT
clock source rating.

Signed-off-by: Magnus Damm <damm@igel.co.jp>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-05-08 17:46:57 +09:00
Magnus Damm
4f5ecaa054 sh: clock framework update, fix count and kill off kref
This patch updates the clock framework use count code.
With this patch the enable() and disable() callbacks
only get called when counting from and to zero.
While at it the kref stuff gets replaced with an int.

Signed-off-by: Magnus Damm <damm@igel.co.jp>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-05-08 17:46:22 +09:00
Paul Mundt
7d170b1bc5 sh: Move out cayman-specific panic handler code to its own file.
This moves out the cayman-specific panic handler code to a better
location, and leaves the generic implementation a simple stub that is
still used under emulation.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-05-08 17:41:59 +09:00
Paul Mundt
ef9f89996e sh: Kill off unused sh64 debug code.
None of the print_page() code and associated helpers are presently used
by anything in-tree, so just kill it off.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-05-08 17:36:57 +09:00
Paul Mundt
cb3a86c89e sh: Kill off sh64's hand-rolled syscall tracer.
This is no longer necessary, as there are now sufficient generic
alternatives available.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-05-08 17:25:35 +09:00
Paul Mundt
1af2fe45fe sh: Kill off the global rtc_lock with extreme prejudice.
Now that all of the possible users for rtc_lock have gone away, it is no
longer necessary to keep this lock definition around.

This follows several other architectures that have either recently
dropped it or never supported it in the first place.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-05-08 16:59:05 +09:00
Paul Mundt
cd1408f22d sh: mach-sh03: Give the sh03 rtc its own spinlock.
This converts the sh03 rtc code off of using the global rtc_lock and on
to its own spinlock. There are no other possible users of the rtc_lock,
so serializing with it is not necessary.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-05-08 16:57:35 +09:00
Paul Mundt
6459d7bb72 sh: Kill off dead timer sysclass pm hooks.
With the conversion to generic clockevents these are completely unused,
so just kill it off.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-05-08 16:47:48 +09:00
Paul Mundt
5ac5496411 sh: Kill off dead handle_timer_tick() code.
Nothing is using this anymore now that we have fully converted to generic
time, so kill it off completely.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-05-08 16:44:00 +09:00
Paul Mundt
6d134b9e8d sh: Wire up GENERIC_CMOS_UPDATE for the platforms that need it.
Now that everything has converted over to generic timekeeping, we need an
alternate method for keeping the RTC updated for those platforms that are
still using the rtc_sh_get/set_time pairs, presently limited to SH-03 and
the Dreamcast. This wires up the GENERIC_CMOS_UPDATE hooks for those to
maintain the same behaviour.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-05-08 16:36:13 +09:00
Paul Mundt
b179b72fad sh: Rename arch/sh/kernel/time_32.c to arch/sh/kernel/time.c.
This is now fully generic, and used both by _32 and _64 variants.
Rename it accordingly.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-05-08 16:17:36 +09:00
Paul Mundt
add47067a8 sh: Finish the sh64 migration off of ARCH_USES_GETTIMEOFFSET.
This adds sh_tmu support to the SH-5 subtypes, which subsequently allows
us to kill off time_64.c and use the now generic time_32.c. As a bonus,
SH-5 now supports highres timers and tickless for the first time.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-05-08 16:12:17 +09:00
Paul Mundt
c2ecb4c4a7 sh: Move out rtc-sh registration from time_64.c to setup-sh5.c
Now that the onchip_remap() mess is sorted out, the rtc-sh support code
for SH-5 can follow the same approach as the other CPUs.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-05-08 15:39:25 +09:00
Paul Mundt
4fa48e1774 sh: Enable new TMU driver support for all SH-3 and SH-4 CPUs.
The TMU block is supported on all SH-3 and SH-4 subtypes, so just select
it there, rather than conditionalizing it per subtype.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-05-08 15:28:15 +09:00
Magnus Damm
e367592cc9 sh: TMU platform data for sh7785
This patch adds TMU platform data for sh7785. Both clockevent
and clocksource support is enabled.

Signed-off-by: Magnus Damm <damm@igel.co.jp>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-05-08 11:40:09 +09:00
Magnus Damm
06ee846a25 sh: r7785 highlander clock fixes
Update the r7785 highlander defconfig to fix
PCLK value and that mode4 is set high.

Signed-off-by: Magnus Damm <damm@igel.co.jp>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-05-08 11:40:04 +09:00
Magnus Damm
b3cacf3181 sh: call clock framework init() callback once
Make sure that clk->ops->init() only gets called once in
the case of CLK_ALWAYS_ENABLED. Without this patch the
init() callback may be called multiple times.

Signed-off-by: Magnus Damm <damm@igel.co.jp>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-05-08 11:38:28 +09:00
Magnus Damm
5dafc91fca sh: sh7785 early scif fix
This patch moves the SH4 case of EARLY_SCIF_CONSOLE_PORT
so the SH7785 default value gets used. Without this patch
the value for SH7785 is set to 0xffe80000.

Signed-off-by: Magnus Damm <damm@igel.co.jp>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-05-08 11:38:26 +09:00
Paul Mundt
c51279ec0d sh: Kill off unused SH-5 irq_describe cruft.
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-05-07 18:17:20 +09:00
Paul Mundt
0fb849b9d7 sh: Integrate the SH-5 onchip_remap() more coherently.
Presently this is special-cased for early initialization. While there are
situations where these static early initializations are still necessary,
with minor changes it is possible to use this for the regular ioremap
implementation as well. This allows us to kill off the special-casing for
the remap completely and to start tidying up all of the SH-5
special-casing in drivers.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-05-07 18:10:27 +09:00
Paul Mundt
ae318a148e sh: sh64 still needs ARCH_USES_GETTIMEOFFSET temporarily.
sh64 is still using this, so re-enable it temporarily while SH-5 gets
converted to use the generic code.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-05-07 17:55:09 +09:00
Paul Mundt
ee1acbfabd sh: Handle shm_align_mask also for HAVE_ARCH_UNMAPPED_AREA_TOPDOWN.
Presently shm_align_mask is only looked at for the bottom up case, but we
still want this for proper colouring constraints in the topdown case.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-05-07 16:38:16 +09:00
Paul Mundt
40c8bca76e sh: Flag IRQSTACKS as BROKEN for now.
There still seems to be some stack corruption to sort out here, so flag
this as BROKEN until this issue is sorted out.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-05-07 15:24:36 +09:00
Paul Mundt
25483efeb2 sh: Move dummy clockevents broadcast timer to its new home.
The old arch/sh/kernel/timers/ directly will be going away completely
once the rest of the TMU users are migrated, so move the dummy broadcast
driver up a level in preparation.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-05-03 18:29:27 +09:00
Paul Mundt
dec56e6312 sh: Kill off the now unused ARCH_USES_GETTIMEOFFSET code.
Now that the stragglers (MTU2/CMT/etc.) have been rewritten and we are
selecting both GENERIC_TIME and GENERIC_CLOCKEVENTS, the get_offset()
timer op is completely unused. As a result, we are now able to kill off
the ARCH_USES_GETTIMEOFFSET references.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-05-03 18:18:14 +09:00
Paul Mundt
938edae11e sh: select both GENERIC_TIME and GENERIC_CLOCKEVENTS.
Now that the rest of the timers that didn't support clockevents have been
rewritten, both of these can be enabled by default.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-05-03 18:12:26 +09:00
Paul Mundt
46a12f7426 sh: Consolidate MTU2/CMT/TMU timer platform data.
All of the SH timers use a roughly identical structure for platform data,
which presently is broken out for each block. Consolidate all of these
definitions, as there is no reason for them to be broken out in the first
place.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-05-03 17:57:17 +09:00
Magnus Damm
d43a41bf8b sh: TMU platform data for sh7722
This patch adds TMU platform data for sh7722. Only clockevent
mode is enabled for now, clocksource requires this patch:
"clocksource: setup mult_orig in clocksource_enable()"

Signed-off-by: Magnus Damm <damm@igel.co.jp>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-05-03 17:41:37 +09:00
Magnus Damm
9570ef2042 clocksource: SuperH TMU Timer driver
This patch adds a TMU driver for the SuperH architecture.

The TMU driver is a platform driver with early platform
support to allow using a TMU channel as clockevent or
clocksource during system bootup or later.

Clocksource or clockevent can be selected.
Both periodic and oneshot clockevents are supported.

Signed-off-by: Magnus Damm <damm@igel.co.jp>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-05-03 17:41:15 +09:00
Magnus Damm
3280c8865e sh: remove old MTU2 driver
This patch removes the old MTU2 driver (CONFIG_SH_MTU2/timer-mtu2.c)

As replacement, select the sh_cmt driver with CONFIG_SH_TIMER_MTU2
and configure timer channel using platform data.

If multiple MTU channels are enabled using platform data, use the
earlytimer parameter on the kernel command line to select channel.
For instance, use "earlytimer=sh_mtu2.0" to select the first channel.

To verify which timer is being used, look at printouts or the timer
irq count in /proc/interrupts.

Signed-off-by: Magnus Damm <damm@igel.co.jp>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-05-03 17:40:13 +09:00
Magnus Damm
da107c6ef9 sh: sh2a MTU2 platform data
This patch adds MTU2 platform data for the following cpus:
 - sh7201 (3/5 channels)
 - sh7203/sh7263 (2/4 channels)
 - sh7206 (3/5 channels)
 - MXG (3/5 channels)

Signed-off-by: Magnus Damm <damm@igel.co.jp>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-05-03 17:38:07 +09:00
Magnus Damm
d5ed4c2e5c clocksource: SuperH MTU2 Timer driver
This patch adds a MTU2 driver for the SuperH architecture.

The MTU2 driver is a platform driver with early platform
support to allow using a MTU2 channel as only clockevent
during system bootup.

Clocksource on sh2a is currently unsupported due to code
generation issues with 64-bit math, so at this point only
periodic clockevent support is in place.

Signed-off-by: Magnus Damm <damm@igel.co.jp>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-05-03 17:36:02 +09:00
john stultz
7563431107 time: sh: convert to use arch_getoffset() infrastructure
Convert sh to use GENERIC_TIME via the arch_getoffset() infrastructure.

Signed-off-by: John Stultz <johnstul@us.ibm.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-05-03 17:32:55 +09:00
Thomas Gleixner
d804983982 sh: remove obsolete hw_interrupt_type
Impact: cleanup

Convert the last remaining users to struct irq_chip and remove the
define.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-05-03 17:28:13 +09:00
Thomas Gleixner
0cd5f7b0c7 sh: remove obsolete no_irq_type
Impact: cleanup

convert the last remaining users to no_irq_chip

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-05-03 17:28:13 +09:00
Paul Mundt
66fdc95172 Merge branch 'timers/clocksource' of git://git.kernel.org/pub/scm/linux/kernel/git/x86/linux-2.6-tip 2009-05-03 17:24:55 +09:00
Magnus Damm
f425752fc6 sh: remove old CMT driver
This patch removes the old CMT driver (CONFIG_SH_CMT/timer-cmt.c)

As replacement, select the sh_cmt driver with CONFIG_SH_TIMER_CMT
and configure timer channel using platform data.

If multiple CMT channels are enabled using platform data, use the
earlytimer parameter on the kernel command line to select channel.
For instance, use "earlytimer=sh_cmt.0" to select the first channel.

To verify which timer is being used, look at printouts or the timer
irq count in /proc/interrupts.

Signed-off-by: Magnus Damm <damm@igel.co.jp>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-04-30 13:21:14 +09:00
Magnus Damm
698aa99da5 sh: sh2/sh2a 16-bit CMT platform data
This patch adds 16-bit cmt platform data for the following cpus:
 - sh7619 (2 channels)
 - sh7203/sh7263 (2 channels)
 - sh7206 (2 channels)

Signed-off-by: Magnus Damm <damm@igel.co.jp>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-04-30 13:20:37 +09:00
Magnus Damm
e6be3a2586 sh: pass through ioremap() for non-mmu processors.
All 32-bit SuperH processors currently go through __ioremap_mode()
and check for IO_TRAPPED and directly mapped segments. With this
patch we simplify the MMU less case with a pass through version of
 __ioremap_mode() which just returns the physical address.

The effects of this is change are:
 - fix non-MMU ioremap() of high address hardware blocks (sh7203 CMT)
 - make sure IO_TRAPPED is not selected

Signed-off-by: Magnus Damm <damm@igel.co.jp>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-04-30 12:56:37 +09:00
Paul Mundt
4278600644 sh: register the rtc-generic platform device properly.
The device registration was accidentally omitted, add it back in. Do some
basic device probing as well, so this doesn't show up for platforms that
tie in to the RTC interface properly.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-04-28 23:12:10 +09:00
Magnus Damm
8e0b842948 sh: setup timers in late_time_init()
This patch moves the SuperH timer setup code from time_init()
to late_time_init(). Good things about this change:
 - interrupts: they are enabled at late_time_init()
 - mm: regular kmalloc() can be used at late_time_init()

Together with moving to late_time_init() this patch changes
the sh_cmt driver to always allocate with kmalloc(). This
simplifies the code a bit and also fixes section mismatches.

Signed-off-by: Magnus Damm <damm@igel.co.jp>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-04-28 18:01:25 +09:00
Tim Abbott
882016ff36 sh: Use __INIT macro instead of .text.init.
The sh architecture has some code in the .text.init section, but it
does not reference that section in its linker scripts.

This change moves this code from the .text.init section to the
.init.text section, which is presumably where it belongs.

Signed-off-by: Tim Abbott <tabbott@mit.edu>
Acked-by: Sam Ravnborg <sam@ravnborg.org>
Acked-by: Paul Mundt <lethal@linux-sh.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-04-27 19:51:58 -07:00
Jean-Christophe PLAGNIOL-VILLARD
c2e0090c66 sh: mach-r2d: add physmap-flash support for R2D+ boards.
The RTS7751R2D_1 boards only support 1MB of socket-mounted MBM29F040
flash, which we just leave alone as it's not terribly interesting.

This adds support for the s29gl256p on the r2d+ boards that makes a bit
more sense to expose to the user.

Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-04-27 17:54:41 +09:00
Paul Mundt
47c8a08bbe sh: rtc-generic support.
This adds rtc-generic support for SUPERH32.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-04-27 17:34:39 +09:00
Paul Mundt
ecd4ca52bf sh: Fix up unsigned syscall_nr in SH-5 pt_regs.
syscall_nr is presently defined as unsigned in the SH-5 pt_regs,
while the syscall restarting code wants it to be signed. Fix this
up, and bring it in line with the other SH parts.

Reported-by: Roel Kluin <roel.kluin@gmail.com>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-04-27 17:05:38 +09:00
Paul Mundt
5be7c0a4d3 sh: select GENERIC_TIME for new CMT driver.
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-04-27 14:40:47 +09:00
Paul Mundt
fc4967b8c6 sh: update defconfigs for PCI changes.
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-04-27 14:06:26 +09:00
Paul Mundt
339b042bb4 Merge branches 'sh/stable-updates' and 'sh/pci-rework' 2009-04-27 09:45:43 +09:00