Commit graph

1641 commits

Author SHA1 Message Date
Magnus Damm
7759491274 sh: SuperH Mobile suspend support
This patch contains CONFIG_SUSPEND support to the SuperH
architecture. If enabled, SuperH Mobile processors will
register their suspend callbacks during boot.

To suspend, use "echo mem > /sys/power/state". To allow
wakeup, make sure "/sys/device/platform/../power/wakeup"
contains "enabled". Additional per-device driver patches
are most likely needed.

Signed-off-by: Magnus Damm <damm@igel.co.jp>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-03-16 19:52:53 +09:00
Nobuhiro Iwamatsu
7a516280b6 sh: Fix compile error by operands(mov.l) in sh3/entry.S
-- log --
arch/sh/kernel/cpu/sh4/../sh3/entry.S:365: Error: invalid operands for opcode
make[4]: *** [arch/sh/kernel/cpu/sh4/../sh3/entry.o] Error 1
make[3]: *** [arch/sh/kernel/cpu/sh4] Error 2
-- log --

Signed-off-by: Nobuhiro Iwamatsu <iwamatsu.nobuhiro@renesas.com>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-03-16 19:49:21 +09:00
Nobuhiro Iwamatsu
02ebd32f52 sh: Disable get_dma_error_irq for non-SH4 targets.
dma-sh's get_dma_error_irq() is only used by SH4, as the SH3
doesn't have the DMA Error interrupt.

Disable it out for non-SH4 builds.

Signed-off-by: Nobuhiro Iwamatsu <iwamatsu.nobuhiro@renesas.com>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-03-16 19:49:01 +09:00
Francesco VIRLINZI
a83c0b739f sh: PMB hibernation support
This implements preliminary suspend/resume support for the PMB.

Signed-off-by: Francesco Virlinzi <francesco.virlinzi@st.com>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-03-16 19:46:17 +09:00
Nobuhiro Iwamatsu
039a718ebb sh: Revert CONFIG_NR_ONCHIP_DMA_CHANNELS to MAX_DMA_CHANNELS
Signed-off-by: Nobuhiro Iwamatsu <iwamatsu.nobuhiro@renesas.com>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-03-16 19:43:08 +09:00
Kuninori Morimoto
4c3f450ba4 sh: Add OHCI USB support for SH7786
Signed-off-by: Kuninori Morimoto <morimoto.kuninori@renesas.com>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-03-16 19:40:34 +09:00
Ingo Molnar
edb35028e4 Merge branches 'irq/genirq' and 'linus' into irq/core 2009-03-16 09:20:13 +01:00
Magnus Damm
600fa578a9 sh: improve sh7785lcr power off code
Improve the sh7785lcr power off implementation to
never return. It takes some time before the board
is actually powered off, just hang after asking
the harware to power down.

This removes the serial port garbage printout.

Signed-off-by: Magnus Damm <damm@igel.co.jp>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-03-11 17:25:10 +09:00
Francesco VIRLINZI
4a55026fd7 sh: clkfwk: Add resume from hibernation support.
This patch adds PM support to the clock framework.
With this, resume from hibernation is properly supported.

Signed-off-by: Francesco Virlinzi <francesco.virlinzi@st.com>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-03-11 17:18:50 +09:00
Francesco VIRLINZI
d680c76ecc sh: clkfwk: add clk_set_parent/clk_get_parent
This patch adds the clk_set_parent/clk_get_parent routines to the sh
clock framework.

Signed-off-by: Francesco Virlinzi <francesco.virlinzi@st.com>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-03-11 17:18:46 +09:00
Nobuhiro Iwamatsu
71b973a42c sh: dma-sh updates for multi IRQ and new SH-4A CPUs.
This adds DMA support for newer SH-4A CPUs, particularly SH7763/64/80/85.

This also enables multi IRQ support for platforms that have multiple
vectors bound to the same IRQ source.

Signed-off-by: Nobuhiro Iwamatsu <iwamatsu.nobuhiro@renesas.com>
Signed-off-by: Yoshihiro Shimoda <shimoda.yoshihiro@renesas.com>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-03-10 17:26:49 +09:00
Paul Mundt
ae68df5635 sh: Generate uImage by default on Urquell board.
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-03-10 17:00:48 +09:00
Paul Mundt
dc65a977ce sh: Define ARCH_SHMOBILE for SH-Mobile CPUs.
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-03-10 16:26:29 +09:00
Yoshihiro Shimoda
8ffe313342 sh: pci-sh7780: fix pci memory address for fixed PMB
Fix the problem that cannot work a PCI device when 32-bit physical
address mode.

Signed-off-by: Yoshihiro Shimoda <shimoda.yoshihiro@renesas.com>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-03-10 15:51:49 +09:00
Yoshihiro Shimoda
df4d4f1a47 sh: sh7785lcr: Updates for fixed PMB.
Add a new defconfig for SH7785LCR in 32-bit mode, and update the power
off code to avoid 29-bit assumptions.

Signed-off-by: Yoshihiro Shimoda <shimoda.yoshihiro@renesas.com>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-03-10 15:50:44 +09:00
Yoshihiro Shimoda
2f47f44790 sh: Support fixed 32-bit PMB mappings from bootloader.
This provides a method for supporting fixed PMB mappings inherited from
the bootloader, as an alternative to the dynamic PMB mapping currently
used by the kernel. In the future these methods will be combined.

P1/P2 area is handled like a regular 29-bit physical address, and local
bus device are assigned P3 area addresses.

Signed-off-by: Yoshihiro Shimoda <shimoda.yoshihiro@renesas.com>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-03-10 15:49:54 +09:00
Magnus Damm
508407149a sh: Show sleep state with Migo-R LEDs
If CONFIG_PM is set, let Migo-R LEDs show sleep states.
D11 will show STATUS0 and D12 PDSTATUS.

Signed-off-by: Magnus Damm <damm@igel.co.jp>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-03-10 15:26:56 +09:00
Paul Mundt
74aaf024c9 Merge branch 'sh/stable-updates' 2009-03-10 15:25:18 +09:00
Nobuhiro Iwamatsu
ba087e6f69 sh: Add media/soc_camera.h to board setup of Renesas AP325RXA
Other compilation errors were revised by commit of
"sh: ap325rxa: Revert ov772x support"
(08c2f5b4d7) but other compilation
errors are given.
We revert this commit and need to add new header(media/soc_camera.h).
This change revises new compilation error.

Signed-off-by: Nobuhiro Iwamatsu <iwamatsu.nobuhiro@renesas.com>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-03-10 15:20:54 +09:00
Paul Mundt
e161183ba6 Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux-2.6 2009-03-10 15:17:26 +09:00
Magnus Damm
2ef7f0dab6 sh: hibernation support
Add Suspend-to-disk / swsusp / CONFIG_HIBERNATION support
to the SuperH architecture.

To suspend, use "swapon /dev/sda2; echo disk > /sys/power/state"
To resume, pass "resume=/dev/sda2" on the kernel command line.

The patch "pm: rework includes, remove arch ifdefs V2" is
needed to allow the generic swsusp code to build properly.

Hibernation is not enabled with this patch though, a patch
setting ARCH_HIBERNATION_POSSIBLE will be submitted later.

Signed-off-by: Magnus Damm <damm@igel.co.jp>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-03-10 12:55:40 +09:00
Paul Mundt
edab56f4c9 sh: multiple vectors per irq - sh7720.
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-03-06 19:21:02 +09:00
Paul Mundt
56d604defa sh: multiple vectors per irq - sh7710.
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-03-06 19:20:48 +09:00
Paul Mundt
0caedb02c4 sh: multiple vectors per irq - sh7705.
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-03-06 19:20:32 +09:00
Paul Mundt
592acbda89 sh: multiple vectors per irq - sh770x.
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-03-06 19:20:14 +09:00
Paul Mundt
053bfc5360 sh: multiple vectors per irq - mxg.
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-03-06 19:19:54 +09:00
Paul Mundt
5dece2bbda sh: multiple vectors per irq - sh7619.
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-03-06 19:19:31 +09:00
Paul Mundt
f858abbecd sh: multiple vectors per irq - sh7206.
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-03-06 18:34:15 +09:00
Paul Mundt
d55eedd57d sh: multiple vectors per irq - sh7201.
Follow the conversions as per the other subtypes.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-03-06 18:21:38 +09:00
Paul Mundt
e45efe68d1 sh: multiple vectors per irq - sh7263.
Convert over the SH7263 IRQ groups as well.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-03-06 18:02:33 +09:00
Paul Mundt
bb943a286c sh: multiple vectors per irq - sh7203.
Follow the conversions as per the other subtypes.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-03-06 17:58:51 +09:00
Nobuhiro Iwamatsu
075901af28 sh: Restore RTC IRQ setting for SH7763 setup.
This was accidentally dropped in the multiple vectors per irq conversion.

Signed-off-by: Nobuhiro Iwamatsu <iwamatsu.nobuhiro@renesas.com>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-03-06 14:37:34 +09:00
Nobuhiro Iwamatsu
a6bc77241d sh: multiple vectors per irq - sh7763
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 sh7763 hardware
blocks such as RTC/SCIF/DMAC/GETHER/PCIC5/MMCIF/SIM/GPIO/USBF.

Signed-off-by: Nobuhiro Iwamatsu <iwamatsu.nobuhiro@renesas.com>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-03-06 14:18:43 +09:00
Paul Mundt
a4b1fddcd4 sh: Set a sensible default for the SH7786 pclk.
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-03-05 17:52:34 +09:00
Kuninori Morimoto
929ef1a1f5 sh: urquell: Add smc91x support and update defconfig accordingly.
Signed-off-by: Kuninori Morimoto <morimoto.kuninori@renesas.com>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-03-05 17:37:12 +09:00
Kuninori Morimoto
5ac072e110 sh: Urquell board support.
This adds preliminary support for the SH7786-based Urquell board.

Signed-off-by: Kuninori Morimoto <morimoto.kuninori@renesas.com>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-03-03 16:22:00 +09:00
Paul Mundt
37042fbd8b sh: SH7786 is an SH-X3 core, select CPU_SHX3.
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-03-03 15:57:02 +09:00
Kuninori Morimoto
55ba99eb21 sh: Add support for SH7786 CPU subtype.
This adds preliminary support for the SH7786 CPU subtype.

While this is a dual-core CPU, only UP is supported for now. L2 cache
support is likewise not yet implemented.

More information on this particular CPU subtype is available at:

	http://www.renesas.com/fmwk.jsp?cnt=sh7786_root.jsp&fp=/products/mpumcu/superh_family/sh7780_series/sh7786_group/

Signed-off-by: Kuninori Morimoto <morimoto.kuninori@renesas.com>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-03-03 15:40:25 +09:00
David S. Miller
aa4abc9bcc Merge branch 'master' of master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6
Conflicts:
	drivers/net/wireless/iwlwifi/iwl-tx.c
	net/8021q/vlan_core.c
	net/core/dev.c
2009-03-01 21:35:16 -08:00
Paul Mundt
0d5e19ab07 sh: Fix up SH-X3 general exception handler build.
With the recent entry.S refactoring, the SH-X3 path had a mov.l for a
register to register copy, resulting in:

  AS      arch/sh/kernel/cpu/sh4/../sh3/entry.o
arch/sh/kernel/cpu/sh4/../sh3/entry.S: Assembler messages:
arch/sh/kernel/cpu/sh4/../sh3/entry.S:366: Error: invalid operands for opcode
make[3]: *** [arch/sh/kernel/cpu/sh4/../sh3/entry.o] Error 1

Switch it over to a mov to fix it up.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-02-27 17:02:28 +09:00
Magnus Damm
57e41c86e2 sh: multiple vectors per irq - sh7785
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 sh7785 hardware
blocks such as SCIF/DMAC/PCIC5/MMCIF/GDTA/FLCTL/GPIO

Signed-off-by: Magnus Damm <damm@igel.co.jp>
Tested-by: Yoshihiro Shimoda <shimoda.yoshihiro@renesas.com>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-02-27 16:53:50 +09:00
Magnus Damm
a842fb2d11 sh: multiple vectors per irq - sh7780
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 sh7780 hardware
blocks such as SCIF/RTC/DMAC/PCIC5/MMCIF/FLCTL/GPIO

Signed-off-by: Magnus Damm <damm@igel.co.jp>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-02-27 16:53:50 +09:00
Magnus Damm
69977e7e25 sh: multiple vectors per irq - sh7750
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 sh775x hardware
blocks such as SCI/SCIF/RTC/DMAC/TMU2/REF.

Signed-off-by: Magnus Damm <damm@igel.co.jp>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-02-27 16:53:50 +09:00
Magnus Damm
bdaa6e8062 sh: multiple vectors per irq - base
Instead of keeping the single vector -> single linux irq mapping
we extend the intc code to support merging of vectors to a single
linux irq. This helps processors such as sh7750, sh7780 and sh7785
which have more vectors than masking ability. With this patch in
place we can modify the intc tables to use one irq per maskable
irq source. Please note the following:

 - If multiple vectors share the same enum then only the
   first vector will be available as a linux irq.

 - Drivers may need to be rewritten to get pending irq
   source from the hardware block instead of irq number.

This patch together with the sh7785 specific intc tables solves
DMA controller irq issues related to buggy interrupt masking.

Reported-by: Yoshihiro Shimoda <shimoda.yoshihiro@renesas.com>
Signed-off-by: Magnus Damm <damm@igel.co.jp>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-02-27 16:53:50 +09:00
Magnus Damm
3e91faec47 sh: fix P4 iounmap() pass-through
Fix iounmap() of pass-through P4 addresses. Without this patch
iounmap() on the sh7780 rtc area results in a warning message.

Signed-off-by: Magnus Damm <damm@igel.co.jp>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-02-27 16:50:00 +09:00
Paul Mundt
a73090ffaf sh: Disable unsupportable prefetching on SH-3.
The SH-3 does not support 'pref'-based prefetching, only SH-2A and SH-4A
parts do. Remove SH-3 from the list.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-02-27 16:42:05 +09:00
Magnus Damm
0197f21ca5 sh: prefetch early exception data on sh4/sh4a.
Prefetch early exception data. There is unused space in our
exception handler cache line anyway, so this is almost free.

Signed-off-by: Magnus Damm <damm@igel.co.jp>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-02-27 16:41:17 +09:00
Magnus Damm
4f099ebb27 sh: remove EXPEVT vector from stack on sh3/sh4/sh4a
Remove EXPEVT vector from the stack, lookup_exception_vector()
for sh3/sh4/sh4a is already using k2 to get the vector.

Signed-off-by: Magnus Damm <damm@igel.co.jp>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-02-27 16:26:19 +09:00
Magnus Damm
1dd22722f6 sh: rework register restore code for sh3/sh4/sh4a
This patch reworks the sh3/sh4/sh4a register restore code in
the following ways:
 - break out restore_regs() from restore_all()
 - the register saving order is unchanged
 - use restore_regs() in sh_bios_handler and restore_all
 - document the function

Signed-off-by: Magnus Damm <damm@igel.co.jp>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-02-27 16:26:14 +09:00
Magnus Damm
1d015cf02a sh: shared register saving code for sh3/sh4/sh4a
This patch reworks the sh3/sh4/sh4a register saving code in
the following ways:
 - break out prepare_stack_save_dsp() from handle_exception()
 - break out save_regs() from handle_exception()
 - the register saving order is unchanged
 - align new functions to fit in cache lines
 - separate exception code from interrupt code
 - keep main code flow in a single cache line per exception vector
 - use bsr/rts for regular functions (save pr first)
 - keep data in one shared cache line (exception_data)
 - document the functions
 - tie in the hp6xx code

Signed-off-by: Magnus Damm <damm@igel.co.jp>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-02-27 16:26:10 +09:00
Paul Mundt
08c2f5b4d7 sh: ap325rxa: Revert ov772x support.
This change depends on some v4l changes that have been pushed back to
2.6.30, so drop this and fall back on the old soc_camera code until then.

Reported-by: Nobuhiro Iwamatsu <iwamatsu.nobuhiro@renesas.com>
Acked-by: Kuninori Morimoto <morimoto.kuninori@renesas.com>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-02-27 15:41:14 +09:00
Patrick Ohly
cb9eff0978 net: new user space API for time stamping of incoming and outgoing packets
User space can request hardware and/or software time stamping.
Reporting of the result(s) via a new control message is enabled
separately for each field in the message because some of the
fields may require additional computation and thus cause overhead.
User space can tell the different kinds of time stamps apart
and choose what suits its needs.

When a TX timestamp operation is requested, the TX skb will be cloned
and the clone will be time stamped (in hardware or software) and added
to the socket error queue of the skb, if the skb has a socket
associated with it.

The actual TX timestamp will reach userspace as a RX timestamp on the
cloned packet. If timestamping is requested and no timestamping is
done in the device driver (potentially this may use hardware
timestamping), it will be done in software after the device's
start_hard_xmit routine.

Signed-off-by: Patrick Ohly <patrick.ohly@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2009-02-15 22:43:33 -08:00
Ingo Molnar
8f8573ae9f Merge branches 'irq/genirq', 'irq/sparseirq' and 'irq/urgent' into irq/core 2009-02-13 11:57:18 +01:00
Paul Mundt
41480ae7a3 Merge branch 'sh/stable-updates' 2009-02-12 17:27:56 +09:00
Tobias Klauser
270c5609e2 sh: Storage class should be before const qualifier
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: Tobias Klauser <tklauser@distanz.ch>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-02-12 17:26:09 +09:00
Paul Mundt
508eb2ce22 sh: Restrict old CMT timer code to SH-2/SH-2A.
None of the other platforms use this, and need individual porting.
Restrict it back to the supported set of CPU subtypes.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-02-04 15:28:06 +09:00
Paul Mundt
c161e40f45 sh: Don't enable GENERIC_TIME for the CMT clockevent driver yet.
GENERIC_TIME still depends on the clocksource bits being there, which is
presently not supported. This allows the CMT clockevent driver to be used
alongside alternate system timers that do not yet provide a clocksource
of their own (MTU2 and so on in the case of SH-2A).

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-01-29 18:11:25 +09:00
Paul Mundt
d63f3a5857 sh: Fix up MTU2 support for SH7203.
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-01-29 18:10:13 +09:00
Paul Mundt
f5ad881b42 sh: Use SYS_SUPPORTS_CMT for managing CMT timer dependencies.
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-01-29 18:08:58 +09:00
Magnus Damm
424f59d04d sh: CMT platform data for sh7723/sh7722/sh7366/sh7343
CMT platform data for SuperH Mobile sh7723/sh7722/sh7343/sh7366.

Signed-off-by: Magnus Damm <damm@igel.co.jp>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-01-29 17:02:51 +09:00
Magnus Damm
3fb1b6ad06 sh: CMT clockevent platform driver
SuperH CMT clockevent driver.

Both 16-bit and 32-bit CMT versions are supported, but only 32-bit
is tested. This driver contains support for both clockevents and
clocksources, but no unregistration is supported at this point.

Works fine as clock source and/or event in periodic or oneshot mode.
Tested on sh7722 and sh7723, but should work with any cpu/architecture.

This version is lacking clocksource and early platform driver support
for now - this to minimize the amount of dependencies.

Signed-off-by: Magnus Damm <damm@igel.co.jp>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-01-29 16:56:32 +09:00
Magnus Damm
07821d3310 sh: fix no sys_timer case
Handle the case with a sys_timer set to NULL.

Signed-off-by: Magnus Damm <damm@igel.co.jp>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-01-29 16:45:47 +09:00
Magnus Damm
70f0800133 sh: tmu disable support
Add TMU disable support so we can use other clockevents.
Also, setup the clockevent rating.

Signed-off-by: Magnus Damm <damm@igel.co.jp>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-01-29 16:44:18 +09:00
Magnus Damm
955c077872 sh: rework clocksource and sched_clock
Rework and simplify the sched_clock and clocksource code. Instead
of registering the clocksource in a shared file we move it into the
tmu driver. Also, add code to handle sched_clock in the case of no
clocksource.

Signed-off-by: Magnus Damm <damm@igel.co.jp>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-01-29 16:44:17 +09:00
Roel Kluin
dc66ff6220 SH: fix start_thread and user_stack_pointer macros
Fix macros start_thread and user_stack_pointer.
When these macros aren't called with a variable named regs as second
argument, this will result in a build failure.

Signed-off-by: Roel Kluin <roel.kluin@gmail.com>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-01-29 15:41:15 +09:00
Matt Fleming
84fdf6cda3 sh: Use the atomic_t "counter" member
Now that atomic_t is a generic opaque type for all architectures, it is
unwise to use intimate knowledge of its internals when manipulating it.

Instead of relying on the "counter" member being at offset 0 from the
beginning of an atomic_t, explicitly reference the member. This guards
us from any changes to the layout of the beginning of the atomic_t type.

Signed-off-by: Matt Fleming <matt@console-pimps.org>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-01-29 11:57:10 +09:00
Matt Fleming
42990701f9 sh: Relax inline assembly constraints
When dereferencing the memory address contained in a register and
modifying the value at that memory address, the register should not be
listed in the inline asm outputs. The value at the memory address is an
output (which is taken care of with the "memory" clobber), not the register.

Signed-off-by: Matt Fleming <matt@console-pimps.org>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-01-29 11:57:09 +09:00
Paul Mundt
e4e3c3f17f Merge branch 'sh/stable-updates' 2009-01-29 11:56:45 +09:00
Takashi Yoshii
c20f326a62 sh: Fix up T-bit error handling in SH-4A mutex fastpath.
This corrects a deadlock encountered on ap325 in the cases where the
mutex is contended and the slow-path needs to be fallen back upon.

Signed-off-by: Takashi YOSHII <yoshii.takashi@renesas.com>
Signed-off-by: Kuninori Morimoto <morimoto.kuninori@renesas.com>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-01-29 11:56:03 +09:00
Paul Mundt
03f07876df sh: Fix up spurious syscall restarting.
The T-bit manipulation for syscall error checking had the side effect of
spuriously returning ERESTART* errno values over EINTR. So, we simplify
the error checking a bit and leave the T-bit alone.

Reported-by: Kaz Kojima <kkojima@rr.iij4u.or.jp>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-01-29 11:56:03 +09:00
Carmelo AMOROSO
0f6dee232f sh: fcnvds fix with denormalized numbers on SH-4 FPU.
This fixes a bug in the FPU exception handler for the FCNVDS instruction.
To get the register number the instruction is shifted right by 9,
though it should be shifted right by 8.

More information at ST Linux bugzilla:

	https://bugzilla.stlinux.com/show_bug.cgi?id=4892

Signed-off-by: Giuseppe Di Giore <giuseppe.di-giore@st.com>
Signed-off-by: Carmelo Amoroso <carmelo.amoroso@st.com>
Signed-off-by: Stuart Menefy <stuart.menefy@st.com>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-01-29 11:56:02 +09:00
Christopher SMITH
4886516310 sh: Only reserve memory under CONFIG_ZERO_PAGE_OFFSET when it != 0.
Signed-off-by: Chris Smith <chris.smith@st.com>
Signed-off-by: Stuart Menefy <stuart.menefy@st.com>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-01-29 11:56:02 +09:00
Stuart Menefy
cadc4e1a2b sh: Handle calling csum_partial with misaligned data
In rare circumstances csum_partial() can be called with data which is
not 16 or 32 bit aligned. This is been observed with RPC calls for NFS
file systems for example. Add support for handling this without resorting
to the misaligned fixup code (which is why this hasn't been seen as a
problem). This mimics the i386 version, which has had this support for
some time.

Signed-off-by: Stuart Menefy <stuart.menefy@st.com>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-01-29 11:56:02 +09:00
Kuninori Morimoto
3d22fca7ab sh: ap325rxa: Enable ov772x in defconfig.
This patch updates the ap325 defconfig to include
ov772x camera driver.
Old camera is still supported.

Signed-off-by: Kuninori Morimoto <morimoto.kuninori@renesas.com>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-01-29 11:56:02 +09:00
Kuninori Morimoto
7a65d245fa sh: ap325rxa: Add ov772x support.
This patch add ov772x camera settings to ap325,
Old camera is still supported. And it will be 2nd camera
if you select ov772x and soc_camera_platform in same time.

Signed-off-by: Kuninori Morimoto <morimoto.kuninori@renesas.com>
Signed-off-by: Magnus Damm <damm@igel.co.jp>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-01-29 11:56:02 +09:00
Kuninori Morimoto
86746284e2 sh: ap325rxa: control camera power toggling.
Signed-off-by: Kuninori Morimoto <morimoto.kuninori@renesas.com>
Signed-off-by: Magnus Damm <damm@igel.co.jp>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-01-29 11:56:02 +09:00
Kuninori Morimoto
334d99072d sh: mach-migor: Enable ov772x and tw9910 in defconfig.
This patch updates the Migo-R defconfig to include
ov772x camera and tw9910 video driver

Signed-off-by: Kuninori Morimoto <morimoto.kuninori@renesas.com>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-01-29 11:56:02 +09:00
Paul Mundt
ae5e6d05a6 sh: mach-highlander and mach-rsk require gpiolib.
Fix up the build for mach-highlander and mach-rsk. These operated on the
assumption that GENERIC_GPIO support with an optional GPIOLIB was
possible. This used to be true, but has not been the case since commit-id
d56cc8bc661ac1ceded8d45ba2d53bb134fee17d ("sh: use gpiolib"), where the
GENERIC_GPIO implementation was rewritten to use GPIOLIB directly.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-01-27 14:49:10 +09:00
Paul Mundt
57e97cb8be sh: Fix up GENERIC_GPIO build for ARCH_WANT_OPTIONAL_GPIO cases.
CPUs define pinmux tables through the optional interface, while boards
that require demux of their own require it explicitly. Roll the Makefile
rules back to depend on GENERIC_GPIO, which covers both cases.

Fixes a link error with an undefined reference to register_pinmux() on
optional platforms.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-01-27 14:49:10 +09:00
Magnus Damm
69edbba002 sh: use gpiolib
This patch updates the SuperH gpio code to make use of gpiolib. The
gpiolib callbacks get() and set() are lockless, but we use our own
spinlock for the other operations to make sure hardware register
bitfield accesses stay atomic.

Signed-off-by: Magnus Damm <damm@igel.co.jp>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-01-27 14:49:10 +09:00
Magnus Damm
3292094e88 sh: lockless gpio_set_value()
This patch optimizes the gpio data register handling for gpio_set_value().

Instead of using the good old spinlock-plus-read-modify-write strategy
we now use a shadow register and atomic operations.

This improves the bitbanging mmc performance on Migo-R from 26 Kbytes/s
to 40 Kbytes/s.

Signed-off-by: Magnus Damm <damm@igel.co.jp>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-01-27 14:49:10 +09:00
Magnus Damm
0fc64cc0a2 sh: lockless gpio_get_value()
This patch separates the register read and write functions to
allow lockless gpio_get_value().

Signed-off-by: Magnus Damm <damm@igel.co.jp>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-01-27 14:49:09 +09:00
Magnus Damm
18801be7f8 sh: make gpio_get/set_value() O(1)
This patch modifies the table based SuperH gpio implementation to
make use of direct table lookups. With this change the functions
gpio_get_value() and gpio_set_value() are O(1).

Tested on Migo-R using bitbanging mmc. Performance is improved from
11 KBytes/s to 26 Kbytes/s.

Signed-off-by: Magnus Damm <damm@igel.co.jp>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-01-27 14:49:09 +09:00
Linus Torvalds
cfb901bf84 Merge branch 'i2c-for-linus' of git://jdelvare.pck.nerim.net/jdelvare-2.6
* 'i2c-for-linus' of git://jdelvare.pck.nerim.net/jdelvare-2.6:
  i2c: Warn on deprecated binding model use
  eeprom: More consistent symbol names
  eeprom: Move 93cx6 eeprom driver to /drivers/misc/eeprom
  spi: Move at25 (for SPI eeproms) to /drivers/misc/eeprom
  i2c: Move old eeprom driver to /drivers/misc/eeprom
  i2c: Move at24 to drivers/misc/eeprom
  i2c: Quilt tree has moved
  i2c: Delete many unused adapter IDs
  i2c: Delete 10 unused driver IDs
2009-01-26 15:11:41 -08:00
Jean Delvare
dd7f8dbe2b eeprom: More consistent symbol names
Now that all EEPROM drivers live in the same place, let's harmonize
their symbol names.

Also fix eeprom's dependencies, it definitely needs sysfs, and is no
longer experimental after many years in the kernel tree.

Signed-off-by: Jean Delvare <khali@linux-fr.org>
Acked-by: Wolfram Sang <w.sang@pengutronix.de>
Cc: David Brownell <dbrownell@users.sourceforge.net>
2009-01-26 21:19:57 +01:00
SUGIOKA Toshinobu
2afb447f33 sh: fix unaligned and nonexistent address handling
unaligned and nonexistent address causes wrong exception
handling in traps_32.c(handle_unaligned_access).

'handle_unalinged_ins' should return -EFAULT if address error
is fixed up with kernel exception table, otherwise
'handle_unaligned_access' increases already fixed program counter
and then crash.

for example
   ioctl(fd, TCGETA, (struct termio *)-1)
never return and stay in TASK_UNINTERRUPTIBLE state forever
in my kernel.

Signed-off-by: SUGIOKA Toshinobu <sugioka@itonet.co.jp>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-01-21 18:35:55 +09:00
Magnus Damm
3442c0d627 sh: export the sh7343 JPU to user space
This patch exports the sh7343 JPU to user space using uio_pdrv_genirq,
very similar to the sh7722 JPU patch by Hayama-san.

While at it fix up the end of the sh7722 JPU iomem resource.

Signed-off-by: Magnus Damm <damm@igel.co.jp>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-01-21 17:44:26 +09:00
Paul Mundt
5e8766f1c1 sh: update defconfigs.
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-01-21 17:44:16 +09:00
Paul Mundt
e16038aba3 sh: Kill off obsolete busses from arch/sh/Kconfig.
ISA can go away now that the hd6446x PCMCIA drivers no longer exist
in-tree. The rationale for enabling CONFIG_ISA in the first place is
likewise no longer valid given that the subsystem has changed since
the time that assertion was valid.

While we are at it, kill off SBUS, MCA, EISA, and so on. These are
not supported and never will be.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-01-21 17:44:01 +09:00
Paul Mundt
604437f0f8 sh: sh7785lcr/highlander/hp6xx need linux/irq.h.
More build fixes..

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-01-21 17:43:25 +09:00
Magnus Damm
70e5c4f084 sh: Migo-R MMC support using spi_gpio and mmc_spi.
This patch adds CN9 MMC support for MigoR using the mmc_spi
driver on top of the bitbanging spi_gpio driver.

Signed-off-by: Magnus Damm <damm@igel.co.jp>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-01-21 17:43:23 +09:00
Magnus Damm
fbdd9a70c2 sh: ap325rxa MMC support using spi_gpio and mmc_spi
This patch adds CN3 MMC support for ap325rxa using the mmc_spi
driver on top of the bitbanging spi_gpio driver.

Signed-off-by: Magnus Damm <damm@igel.co.jp>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-01-21 17:43:15 +09:00
Paul Mundt
10f0fc17f5 sh: mach-x3proto: needs linux/irq.h.
Since commit ba84be2338
("remove linux/hardirq.h from asm-generic/local.h"), the asm/irq.h
definitions that mach-x3proto/setup.c depends on are no longer available,
causing the build to die. So, include linux/irq.h explicitly.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-01-21 17:42:58 +09:00
Paul Mundt
5e6136135d sh: Drop the BKL from sys_execve() on SH-5.
Brings it in line with the SH implementation, the BKL is not
necessary here.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-01-21 17:42:55 +09:00
Steve Glendinning
8ed3592e56 sh: convert rsk7203 to use smsc911x.
Signed-off-by: Steve Glendinning <steve.glendinning@smsc.com>
Signed-off-by: Nobuhiro Iwamatsu <iwamatsu.nobuhiro@renesas.com>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-01-21 17:42:34 +09:00
Steve Glendinning
02da916ae6 sh: convert magicpanelr2 platform to use smsc911x.
Signed-off-by: Steve Glendinning <steve.glendinning@smsc.com>
Signed-off-by: Nobuhiro Iwamatsu <iwamatsu.nobuhiro@renesas.com>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-01-21 17:42:25 +09:00
Steve Glendinning
90b764916a sh: convert ap325rxa platform to use smsc911x.
Signed-off-by: Steve Glendinning <steve.glendinning@smsc.com>
Signed-off-by: Nobuhiro Iwamatsu <iwamatsu.nobuhiro@renesas.com>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-01-21 17:42:21 +09:00
Kuninori Morimoto
deae7b860a sh: mach-migor: Add tw9910 support.
Signed-off-by: Kuninori Morimoto <morimoto.kuninori@renesas.com>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-01-21 17:41:55 +09:00
Kuninori Morimoto
b9afb0bae5 sh: mach-migor: Delete soc_camera_platform setup.
Migo-R can use ov772x camera driver in Linux 2.6.29.
Therefore, soc_camera_platform setting is no longer needed.
This patch removes it.

Signed-off-by: Kuninori Morimoto <morimoto.kuninori@renesas.com>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-01-21 17:41:52 +09:00
Kuninori Morimoto
ff04ea40ea sh: mach-migor: Add ov772x support.
Signed-off-by: Kuninori Morimoto <morimoto.kuninori@renesas.com>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-01-21 17:41:28 +09:00