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2009-05-08sh: Always fixup unaligned userspace accesses on sh64.Paul Mundt2-35/+5
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>
2009-05-08sh: Kill off extra cflags Kconfig entry.Paul Mundt2-14/+0
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>
2009-05-08sh: Always select RTC_LIB, not just for SUPERH32.Paul Mundt1-1/+1
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>
2009-05-08sh: Drop dead rules from arch/sh/kernel/Makefile_64.Paul Mundt1-3/+0
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>
2009-05-08sh: TMU platform data for sh7723Magnus Damm1-1/+195
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>
2009-05-08sh: enable TMU clocksource on sh7722Magnus Damm1-2/+2
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>
2009-05-08sh: clock framework update, fix count and kill off krefMagnus Damm2-34/+39
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>
2009-05-08sh: Move out cayman-specific panic handler code to its own file.Paul Mundt3-44/+50
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>
2009-05-08sh: Kill off unused sh64 debug code.Paul Mundt2-49/+1
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>
2009-05-08sh: Kill off sh64's hand-rolled syscall tracer.Paul Mundt5-232/+2
This is no longer necessary, as there are now sufficient generic alternatives available. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-05-08sh: Kill off the global rtc_lock with extreme prejudice.Paul Mundt1-5/+0
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>
2009-05-08sh: mach-sh03: Give the sh03 rtc its own spinlock.Paul Mundt1-5/+5
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>
2009-05-08sh: Kill off dead timer sysclass pm hooks.Paul Mundt1-45/+0
With the conversion to generic clockevents these are completely unused, so just kill it off. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-05-08sh: Kill off dead handle_timer_tick() code.Paul Mundt2-54/+4
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>
2009-05-08sh: Wire up GENERIC_CMOS_UPDATE for the platforms that need it.Paul Mundt2-0/+18
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>
2009-05-08sh: Rename arch/sh/kernel/time_32.c to arch/sh/kernel/time.c.Paul Mundt3-2/+2
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>
2009-05-08sh: Finish the sh64 migration off of ARCH_USES_GETTIMEOFFSET.Paul Mundt4-269/+120
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>
2009-05-08sh: Move out rtc-sh registration from time_64.c to setup-sh5.cPaul Mundt2-51/+32
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>
2009-05-08sh: Enable new TMU driver support for all SH-3 and SH-4 CPUs.Paul Mundt1-2/+2
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>
2009-05-08sh: TMU platform data for sh7785Magnus Damm2-0/+205
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>
2009-05-08sh: r7785 highlander clock fixesMagnus Damm1-2/+2
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>
2009-05-08sh: call clock framework init() callback onceMagnus Damm1-3/+6
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>
2009-05-08sh: sh7785 early scif fixMagnus Damm1-1/+1
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>
2009-05-07sh: Kill off unused SH-5 irq_describe cruft.Paul Mundt3-38/+0
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-05-07sh: Integrate the SH-5 onchip_remap() more coherently.Paul Mundt11-190/+155
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>
2009-05-07sh: sh64 still needs ARCH_USES_GETTIMEOFFSET temporarily.Paul Mundt1-0/+4
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>
2009-05-07sh: Handle shm_align_mask also for HAVE_ARCH_UNMAPPED_AREA_TOPDOWN.Paul Mundt3-6/+136
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>
2009-05-07sh: Flag IRQSTACKS as BROKEN for now.Paul Mundt1-1/+1
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>
2009-05-03sh: Move dummy clockevents broadcast timer to its new home.Paul Mundt4-2/+4
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>
2009-05-03sh: Kill off the now unused ARCH_USES_GETTIMEOFFSET code.Paul Mundt2-19/+0
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>
2009-05-03sh: select both GENERIC_TIME and GENERIC_CLOCKEVENTS.Paul Mundt1-8/+1
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>
2009-05-03sh: Consolidate MTU2/CMT/TMU timer platform data.Paul Mundt10-38/+35
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>
2009-05-03sh: TMU platform data for sh7722Magnus Damm2-0/+100
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>
2009-05-03clocksource: SuperH TMU Timer driverMagnus Damm1-0/+12
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>
2009-05-03sh: remove old MTU2 driverMagnus Damm5-215/+2
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>
2009-05-03sh: sh2a MTU2 platform dataMagnus Damm5-1/+405
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>
2009-05-03clocksource: SuperH MTU2 Timer driverMagnus Damm1-0/+11
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>
2009-05-03time: sh: convert to use arch_getoffset() infrastructurejohn stultz5-113/+11
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>
2009-05-03sh: remove obsolete hw_interrupt_typeThomas Gleixner2-2/+2
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>
2009-05-03sh: remove obsolete no_irq_typeThomas Gleixner1-2/+1
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>
2009-05-03Merge branch 'timers/clocksource' of git://git.kernel.org/pub/scm/linux/kernel/git/x86/linux-2.6-tipPaul Mundt46-100/+170
2009-04-30sh: remove old CMT driverMagnus Damm5-206/+6
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>
2009-04-30sh: sh2/sh2a 16-bit CMT platform dataMagnus Damm3-0/+252
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>
2009-04-30sh: pass through ioremap() for non-mmu processors.Magnus Damm2-9/+9
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>
2009-04-28m68k: arch/m68k/kernel/sun3-head.S needs <linux/init.h>Geert Uytterhoeven1-0/+1
Fix this: arch/m68k/kernel/sun3-head.S: Assembler messages: arch/m68k/kernel/sun3-head.S:32: Error: Unknown operator -- statement `__head' ignored Introduced by commit 6f335cab0431d5df4995bcd4fd952d4c746d5a86 ("m68k: convert to use __HEAD and HEAD_TEXT macros."), which started using __HEAD without adding the appropriate include. Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-04-28Merge branch 'merge' of git://git.kernel.org/pub/scm/linux/kernel/git/paulus/powerpcLinus Torvalds9-49/+53
* 'merge' of git://git.kernel.org/pub/scm/linux/kernel/git/paulus/powerpc: powerpc/ps3: Fix build error on UP powerpc/cell: Select PCI for IBM_CELL_BLADE AND CELLEB powerpc: ppc32 needs elf_read_implies_exec() powerpc/86xx: Add device_type entry to soc for ppc9a powerpc/44x: Correct memory size calculation for denali-based boards maintainers: Fix PowerPC 4xx git tree powerpc: fix for long standing bug noticed by gcc 4.4.0 Revert "powerpc: Add support for early tlbilx opcode"
2009-04-28powerpc: Revert switch to TEXT_TEXT in linker scriptTim Abbott1-2/+2
Commit edada399 broke the build on 64-bit powerpc because it moved the __ftr_alt_* sections of a file away from the .text section, causing link failures due to relative conditional branch targets being too far away from the branch instructions. This happens on pretty much all 64-bit powerpc configs. This change reverts commit edada399 while preserving the update from the *.refok sections to .ref.text that has happened since. Signed-off-by: Tim Abbott <tabbott@mit.edu> Requested-by: Paul Mackerras <paulus@samba.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-04-28sh: register the rtc-generic platform device properly.Paul Mundt1-1/+16
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>
2009-04-28sh: setup timers in late_time_init()Magnus Damm1-14/+20
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>
2009-04-28powerpc/ps3: Fix build error on UPGeoff Levand1-4/+0
A non-SMP version of smp_send_stop() is now included in smp.h. Remove the unneeded definition in the PS3 smp.c. Fixes build errors like these when CONFIG_SMP=n: arch/powerpc/platforms/ps3/setup.c:49: error: redefinition of 'smp_send_stop' include/linux/smp.h:125: error: previous definition of 'smp_send_stop' was here Reported-by: Subrata Modak <subrata@linux.vnet.ibm.com> Signed-off-by: Geoff Levand <geoffrey.levand@am.sony.com> Signed-off-by: Paul Mackerras <paulus@samba.org>
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