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* sh: add a start_transfer() callback to the LCDC driverMagnus Damm2009-12-08
| | | | | | | | | | | This patch adds a ->start_transfer() callback to the driver sh_mobile_lcdcfb.c. The callback is used to program the LCDC panel in the case of one-shot mode. Needed by the LCD controller used on the KFR2R09 board. Signed-off-by: Magnus Damm <damm@opensource.se> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
* sh: NUMA lmb fixesMagnus Damm2009-12-08
| | | | | | | | | This patch updates the NUMA version of setup_memory() with UMA code changes and also modifies the last argument to lmb_alloc_base() to use an address instead of pfn. Signed-off-by: Magnus Damm <damm@opensource.se> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
* sh: fix size calculation for NUMA node 0Magnus Damm2009-12-08
| | | | | | | | | Fix the NUMA size calculation for node 0. Do the same as the UMA version of setup_memory() and use address instead of pfn when calculating the size. Signed-off-by: Magnus Damm <damm@opensource.se> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
* sh: Replace an explicit computation by the use of the container_of macroNicolas Palix2009-12-08
| | | | | | | | | | | | | | | | | | | | | | The macro container_of from kernel.h performs the same pointer arithmetic operation. The semantic patch that makes this change is as follows: (http://coccinelle.lip6.fr/) // <smpl> @@ type T; expression mptr; expression member; @@ - (void *)((char *)mptr - offsetof(T, member)) + container_of(mptr, T, member) // </smpl> Signed-off-by: Nicolas Palix <npalix@diku.dk> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
* sh: intc: Fixed resume from hibernationFrancesco VIRLINZI2009-12-08
| | | | | | | | This patch fixes the resume from hibernation in the intc sysdev device when it manages 'redirect' irq Signed-off-by: Francesco Virlinzi <francesco.virlinzi@st.com> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
* sh: Can't compare physical and virtual addresses for aliasesMatt Fleming2009-12-08
| | | | | | | | It does not make sense to compare virtual and physical addresses for aliasing, only virtual addresses can be compared for aliases. Signed-off-by: Matt Fleming <matt@console-pimps.org> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
* sh: include empty zero page in romImageMagnus Damm2009-12-04
| | | | | | | | | This patch updates the romImage code to include the empty_zero_page contents from vmlinux. Without this patch the empty zero page is lef uninitialized. Signed-off-by: Magnus Damm <damm@opensource.se> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
* sh: Make associative cache writes fatal on all SH-4A parts.Paul Mundt2009-12-04
| | | | | | | | | Now that associative cache writes are no longer needed by the SH-4/SH-4A cache flush code, associative write support can be explicitly disabled for all SH-4A parts. This makes any associative write throw an exception, as this behaviour can not be assumed to exist on future parts. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
* sh: Drop associative writes for SH-4 cache flushes.Matt Fleming2009-12-04
| | | | | | | | | | | | | | | | | | | When flushing/invalidating the icache/dcache via the memory-mapped IC/OC address arrays, the associative bit should only be used in conjunction with virtual addresses. However, we currently flush cache lines based on physical address, so stop using the associative bit. It is a better strategy to use non-associative writes (and physical tags) for flushing the caches anyway, because flushing by virtual address (as with the A-bit set) requires a valid TLB entry for that virtual address. If one does not exist in the TLB no exception is generated and the flush is silently ignored. This is also future-proofing for SH-4A parts which are gradually phasing out associative writes to the cache array due to the aforementioned case of certain flushes silently turning in to nops. Signed-off-by: Matt Fleming <matt@console-pimps.org> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
* sh: Partial revert of copy/clear_user_highpage() optimizations.Paul Mundt2009-12-04
| | | | | | | These still require more testing, so revert them for now. We keep the off-by-1 in the fixmap colouring and drop the rest. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
* sh: Add default uImage rule for se7724, ap325rxa, and migor.Paul Mundt2009-12-03
| | | | Signed-off-by: Paul Mundt <lethal@linux-sh.org>
* sh: allow runtime pm without suspend/resume callbacksMagnus Damm2009-12-03
| | | | | | | | | This patch updates the Runtime PM code for SuperH Mobile to allow drivers to have NULL as pm or callback value. With this in place there is no need for no-op functions. Signed-off-by: Magnus Damm <damm@opensource.se> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
* sh: mach-ecovec24: Remove un-defined settings for VPUKuninori Morimoto2009-12-03
| | | | | | | | | The setting of VPU need not be changed from default. And current setting value is not defined on SH7724 Reported-by: Goda Yusuke <goda.yusuke@renesas.com> Signed-off-by: Kuninori Morimoto <morimoto.kuninori@renesas.com> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
* sh: mach-ecovec24: LCDC drive ability become highKuninori Morimoto2009-12-03
| | | | | | | | Drive ability for LCDC become high for safety, became there is strange individual specificity board in mass production Signed-off-by: Kuninori Morimoto <morimoto.kuninori@renesas.com> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
* sh: fix sh7724 VEU3F resource sizeMagnus Damm2009-12-03
| | | | | | | Fix one-off VEU3F size error for sh7724. Signed-off-by: Magnus Damm <damm@opensource.se> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
* serial: sh-sci: Fix too early port disabling.Guennadi Liakhovetski2009-12-03
| | | | | | | | | | | | | Currently serial ports on SH CPUs get disabled too early, because the sci_tx_empty() routine claims to not be able to detect whether the transmission has been completed and just always returns TIOCSER_TEMT. This results in corrupt output of last characters if the port is not open for reading at the same time. It is however possible to detect whether transmission has been completed. Use the TEND bit of the status register for this. Signed-off-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
* sh: pfc: pr_info() -> pr_debug() cleanups.Paul Mundt2009-11-29
| | | | | | | | | For some reason this was using pr_info() nested under an ifdef DEBUG. While this is appealing in that it circumvents the effort necessary to change ones loglevel, it's not terribly practical. So, convert it over to pr_debug(). Signed-off-by: Paul Mundt <lethal@linux-sh.org>
* sh: pfc: Convert from ctrl_xxx() to __raw_xxx() I/O routines.Paul Mundt2009-11-29
| | | | | | | | Now that the PFC code is exposed for other architectures, use the common __raw_xxx() routines instead of the ctrl_xxx() ones. This will be needed for ARM-based SH-Mobiles amongst others. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
* sh: Improve kfr2r09 serial port setup codeMagnus Damm2009-11-29
| | | | | | | | | | This patch improves the serial port communication quality of port YC401 on the KFR2R09 board. With this fix serial console is fine at 115200 - up and down keys now work as expected. Thanks to Hirohide Yamasaki for this fix. Signed-off-by: Magnus Damm <damm@opensource.se> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
* sh: Break out SuperH PFC codeMagnus Damm2009-11-29
| | | | | | | | | | | | | This file breaks out the SuperH PFC code from arch/sh/kernel/gpio.c + arch/sh/include/asm/gpio.h to drivers/sh/pfc.c + include/linux/sh_pfc.h. Similar to the INTC stuff. The non-SuperH specific file location makes it possible to share the code between multiple architectures. Signed-off-by: Magnus Damm <damm@opensource.se> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
* sh: Move KEYSC header fileMagnus Damm2009-11-29
| | | | | | | | | This patch moves the KEYSC header file from the SuperH specific asm directory to a place where it can be shared by multiple architectures. Signed-off-by: Magnus Damm <damm@opensource.se> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
* sh: convert /proc/cpu/aligmnent, /proc/cpu/kernel_alignment to seq_fileAlexey Dobriyan2009-11-29
| | | | | Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
* sh: Add CPG save/restore code for sh7724 R-standbyMagnus Damm2009-11-29
| | | | | | | | | Add sh7724 code to save and restore CPG state during R-standby. Only CPG registers IRDACLKCR and SPUCLKCR require software save and restore. Signed-off-by: Magnus Damm <damm@opensource.se> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
* sh: Add SDHI power control support to EcovecMagnus Damm2009-11-29
| | | | | | | | | This patch adds support for SDHI power control to the Ecovec board. Platform data and power control callbacks for SDHI0 and SDHI1 are added. Power is by default off. Signed-off-by: Magnus Damm <damm@opensource.se> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
* mfd: Add power control platform data to SDHI driverMagnus Damm2009-11-29
| | | | | | | | | | This patch adds platform data with a function for power control to the SDHI driver. The idea is that board specific code can provide their own functions so power can be enabled and disabled for the sd-cards. Signed-off-by: Magnus Damm <damm@opensource.se> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
* sh: mach-ecovec24: modify address mapKuninori Morimoto2009-11-29
| | | | | | | | ecovec24 board expect address map 2 instead of map 1 Signed-off-by: Mizukawa Tatsuo <mizukawa.tatsuo@renesas.com> Signed-off-by: Kuninori Morimoto <morimoto.kuninori@renesas.com> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
* serial: sh-sci: Depend on HAVE_CLK unconditionally.Paul Mundt2009-11-25
| | | | | | | | | | | | | The sh-sci code conditionalized the clock framework support in order to give the other platforms a chance to catch up. sh64 supported this some time ago and the forthcoming ARM changes handle this as well, this leaves h8300 as the odd one out. H8300 has had since 2.5 to merge it's sh-sci support upstream, and has yet to do so. At this point I will no longer be holding back the driver to support an unreponsive architecture, 7 years is quite enough of a grace period. Support is easily implemented on the architecture if and when it ever decides to merge its changes upstream. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
* sh: Fix up the FPU emulation build.Paul Mundt2009-11-24
| | | | Signed-off-by: Paul Mundt <lethal@linux-sh.org>
* serial: sh-sci: don't use __devexit_p to wrap sci_removeUwe Kleine-König2009-11-24
| | | | | | | | | | The function sci_remove is defined without any section modifier, so don't use __devexit_p to wrap it. Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de> Cc: Magnus Damm <damm@opensource.se> Cc: linux-kernel@vger.kernel.org Signed-off-by: Paul Mundt <lethal@linux-sh.org>
* rtc: don't use __exit_p to wrap ds1302_rtc_removeUwe Kleine-König2009-11-24
| | | | | | | | | | | | The function ds1302_rtc_remove is defined using __devexit, so don't use __exit_p but __devexit_p to wrap it. Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de> Cc: Alessandro Zummo <a.zummo@towertech.it> Cc: linux-kernel@vger.kernel.org Cc: Paul Gortmaker <p_gortmaker@yahoo.com> Cc: rtc-linux@googlegroups.com Signed-off-by: Paul Mundt <lethal@linux-sh.org>
* sh: Apply the sleazy FPU changes for SH-2A FPU as well.Paul Mundt2009-11-24
| | | | | | This plugs in the fpu_counter manipulation for the SH-2A side also. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
* sh: Minor optimisations to FPU handlingStuart Menefy2009-11-24
| | | | | | | | | | | | | | | | | | | | | | | | | | | A number of small optimisations to FPU handling, in particular: - move the task USEDFPU flag from the thread_info flags field (which is accessed asynchronously to the thread) to a new status field, which is only accessed by the thread itself. This allows locking to be removed in most cases, or can be reduced to a preempt_lock(). This mimics the i386 behaviour. - move the modification of regs->sr and thread_info->status flags out of save_fpu() to __unlazy_fpu(). This gives the compiler a better chance to optimise things, as well as making save_fpu() symmetrical with restore_fpu() and init_fpu(). - implement prepare_to_copy(), so that when creating a thread, we can unlazy the FPU prior to copying the thread data structures. Also make sure that the FPU is disabled while in the kernel, in particular while booting, and for newly created kernel threads, In a very artificial benchmark, the execution time for 2500000 context switches was reduced from 50 to 45 seconds. Signed-off-by: Stuart Menefy <stuart.menefy@st.com> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
* sh: Improve performance of SH4 versions of copy/clear_user_highpageStuart Menefy2009-11-24
| | | | | | | | | | | | | | | | | | | | The previous implementation of clear_user_highpage and copy_user_highpage checked to see if there was a D-cache aliasing issue between the user and kernel mappings of a page, but if there was they always did a flush with writeback on the dirtied kernel alias. However as we now have the ability to map a page into kernel space with the same cache colour as the user mapping, there is no need to write back this data. Currently we also invalidate the kernel alias as a precaution, however I'm not sure if this is actually required. Also correct the definition of FIX_CMAP_END so that the mappings created by kmap_coherent() are actually at the correct colour. Signed-off-by: Stuart Menefy <stuart.menefy@st.com> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
* Merge branch 'master' into sh/st-integrationPaul Mundt2009-11-24
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| * Merge branch 'sh/stable-updates'Paul Mundt2009-11-17
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| * | sh: dma: Kill off bogus dma_sysclass symbol export.Paul Mundt2009-11-12
| | | | | | | | | | | | | | | | | | | | | | | | This is a static symbol, so the export is wholly superfluous. Recent kbuild updates flagged this as an error, resulting in build failure, so this tidies that up. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
| * | sh64: Fix up reworked cache op build.Paul Mundt2009-11-12
| | | | | | | | | | | | | | | | | | | | | | | | This gets the build fixed up for the sh64 cache enabled case. Disabling still needs further abstraction for independent I/D-cache disabling. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
| * | sh64: Fix up the CONFIG_GENERIC_BUG=n build.Paul Mundt2009-11-12
| | | | | | | | | | | | | | | | | | | | | sh64 doesn't use GENERIC_BUG, which presently causes the handle_BUG() code to blow up. Fix up the dependencies and get it all building again. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
| * | sh: Use the generic I/O port base for slowdown.Paul Mundt2009-11-12
| | | | | | | | | | | | | | | | | | | | | | | | This fixes up the build and behaviour for various configurations. Namely the CONFIG_32BIT cases where legacy mappings do not exist, as well as the sh64 build. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
| * | sh: Fix up the CONFIG_PERF_EVENTS=n build for SH-4.Paul Mundt2009-11-12
| | | | | | | | | | | | Signed-off-by: Paul Mundt <lethal@linux-sh.org>
| * | sh: Enable PMB support for all SH-4A CPUs.Paul Mundt2009-11-10
| | | | | | | | | | | | | | | | | | | | | | | | Presently the PMB options were limited to a number of CPUs they were tested with, but it is generally available on all SH-4A CPUs, so just drop the subtype conditionals. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
| * | sh: perf events: Document SH-4A raw event codes.Paul Mundt2009-11-09
| | | | | | | | | | | | Signed-off-by: Paul Mundt <lethal@linux-sh.org>
| * | Merge branch 'sh/stable-updates'Paul Mundt2009-11-08
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| * | | sh: oprofile: Fix up count size mismatch for common impl.Paul Mundt2009-11-05
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This reduces the 'count' size in the common support structure to 32-bits so that it matches up with what oprofile is expecting. The SH7750 code was using a nasty oprofilefs hack to expose the 48-bit counter, although no other implementations were. Now that the offending driver has been killed off, it's possible to restore some semblance of sanity. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
| * | | sh: oprofile: Kill off bitrotted SH7750 driver.Paul Mundt2009-11-05
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This kills off the old SH7750 oprofile driver, preferring perf instead. As this driver has a number of bugs that no one seems to have noticed, it's safe to kill this off now rather than providing an extended transition period. The old oprofile framework is still kept in place for now, primarily to give out-of-tree drivers a chance to transition off. But this too will be killed off in short order. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
| * | | sh: perf events: Add support for SH7750-style counters.Paul Mundt2009-11-05
| | | | | | | | | | | | | | | | | | | | | | | | | | | | This adds perf events support for the SH7750/SH7750S/SH7091 performance counters. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
| * | | sh: perf events: Preliminary callchain support.Paul Mundt2009-11-05
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This implements preliminary support for perf callchains (at the moment only the kernel side is implemented). The actual implementation itself is just a simple wrapper around the unwinder API, which allows for callchain generation with or without the dwarf unwinder. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
| * | | sh: Default-enable SPU clock for SH7724.Paul Mundt2009-11-05
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Wanted by the SPU2 UIO driver, which really ought to be handling this itself. Default enable it for now, until the driver gets a bit more intelligent. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
| * | | sh: sh7724: Add SPU2 supportKuninori Morimoto2009-11-04
| | | | | | | | | | | | | | | | | | | | Signed-off-by: Kuninori Morimoto <morimoto.kuninori@renesas.com> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
| * | | sh: perf events: Fix up uninitialized variable warning.Paul Mundt2009-11-04
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 'config' can be unintialized, and although it's not really an error, it still manages to trigger the -Werror with certain toolchains. Initialize it early to shut up gcc. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
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