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2007-11-07sh: ubc wakeup for SH-4 only.Paul Mundt
SH-4A parts generally don't have any use for this, and it requires an alternate implementation anyways. Leave this as an SH-4 only option, as that's the only place this has been needed in the past. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2007-11-07sh: Add SH7705 and other to the support of Solution Engine.Nobuhiro Iwamatsu
This patch supports Hitachi Solution Engine (SuperH) of SH7705, SH7710, SH7712, SH7750S and SH7750R. Signed-off-by: Nobuhiro Iwamatsu <iwamatsu@nigauri.org> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2007-10-31sh: Clean up SR.RB Kconfig mess.Paul Mundt
CPU_HAS_SR_RB is selected by both CPU_SH3 and CPU_SH4, so having a dependency and default y on those additionally doesn't make much sense. The select also has to be special cased for CPUs that don't support this. This is also something that has been abused too much as a result of being user-visible, hence the addition of the select in the first place. So just kill the user-visibility entirely while we're at it. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2007-10-30sh: Clean up Kconfig entry for Dreamcast.Adrian McMenamin
Remove reference to out of date/rotting websites. Signed-off-by: Adrian McMenamin <adrian@mcmen.demon.co.uk> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2007-10-19Combine instrumentation menus in kernel/Kconfig.instrumentationMathieu Desnoyers
Quoting Randy: "It seems sad that this patch sources Kconfig.marker, a 7-line file, 20-something times. Yes, you (we) don't want to put those 7 lines into 20-something different files, so sourcing is the right thing. However, what you did for avr32 seems more on the right track to me: make _one_ Instrumentation support menu that includes PROFILING, OPROFILE, KPROBES, and MARKERS and then use (source) that in all of the arches." Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@polymtl.ca> Acked-by: Randy Dunlap <randy.dunlap@oracle.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-09-28sh: Conditionalize gUSA support.Paul Mundt
This conditionalizes gUSA support. gUSA is not supported on SMP configurations, and it's not necessary there anyways due to having other atomicity options (ie, movli.l/movco.l). Anything implementing the LL/SC semantics (all SH-4A CPUs) can switch to userspace atomicity implementations without requiring gUSA. This is left default-enabled on all UP so that glibc doesn't break. Those that know what they are doing can disable this explicitly. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2007-09-27sh: Kill off duplicate NODES_SHIFT.Paul Mundt
We already set this in arch/sh/mm/Kconfig, don't set a conflicting one in arch/sh/Kconfig too.. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2007-09-21sh: Add maple bus support for the SEGA Dreamcast.Adrian McMenamin
The Maple bus is SEGA's proprietary serial bus for peripherals (keyboard, mouse, controller etc). The bus is capable of some (limited) hotplugging and operates at up to 2 M/bits. Drivers of one sort or another existed/exist for 2.4 and a rudimentary port, which didn't support the 2.6 device driver model was also in existence. This driver - for the bus logic itself and for the keyboard (other drivers will follow) are based on the code and concepts of those old drivers but have lots of completely rewritten parts. I have the maple bus code as a built in now as that seems the sane and rational way to handle something like that - you either want the bus or you don't. Signed-off-by: Adrian McMenamin <adrian@mcmen.demon.co.uk> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2007-09-21sh: Magic Panel R2 board support.Markus Brunner
This adds support for the SH7720 (SH3-DSP) based Magic Panel R2 board. Signed-off-by: Markus Brunner <super.firetwister@gmail.com> Signed-off by: Mark Jonas <toertel@gmail.com> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2007-09-21sh: Don't enable FPU for SH4AL-DSP.Paul Mundt
This leads to invalid configurations where both FPU and DSP support can be enabled in the same kernel, resulting in build failure. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2007-09-21sh: remove CONFIG_CPU_HAS_INTC_IRQMagnus Damm
All processor specific interrupt code is now converted to make use of the new intc code. The config option CONFIG_CPU_HAS_INTC_IRQ is because of that pointless. Signed-off-by: Magnus Damm <damm@igel.co.jp> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2007-09-21sh: Initial support for SH-X3 prototype board.Paul Mundt
This adds initial support for the SH-X3 prototype board. Only simple logic for the IRQ controller and the heartbeat driver for now. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2007-09-21sh: remove intc2 codeMagnus Damm
There is no point in keeping around the now unused intc2 code. Signed-off-by: Magnus Damm <damm@igel.co.jp> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2007-09-21sh: intc - remove redundant irq code for sh03, snapgear and titanMagnus Damm
This patch removes redundant board specific interrupt code for boards using sh775x processors and 4 IRQ lines in "Individual Interrupt Mode" aka IRLM. Three boards are affected: sh03, snapgear and titan. The right way to do this is to use cpu specific code provided by intc. A nice side effect is that sh03 now compiles, board not BROKEN any more. Signed-off-by: Magnus Damm <damm@igel.co.jp> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2007-09-21sh: simplify se7780 IRQ codeMagnus Damm
The new intc code handles IRQ3 and IRQ7 in the cpu specific code already, so there is no reason to duplicate that here. Signed-off-by: Magnus Damm <damm@igel.co.jp> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2007-07-26sh: remove support for sh7300 and solution engine 7300Magnus Damm
This patch removes old dead code: - kill off sh7300 cpu support - get rid of broken solution engine 7300 board support Signed-off-by: Magnus Damm <damm@igel.co.jp> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2007-07-26sh: Kill off virt_to_bus()/bus_to_virt().Paul Mundt
Wire up ARCH_NO_VIRT_TO_BUS, and kill off the remaining users. The dma-mapping code really wanted virt_to_phys()/phys_to_virt() anyways, there are no inherently special bus addresses. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2007-07-26sh: Restrict DSP support to specific CPUs.Paul Mundt
Not all CPUs support the DSP, and this leads to problems when mixing and matching CPU types and DSP opcodes. Fix this up by only allowing CONFIG_SH_DSP to be enabled for the CPUs that explicitly have such a block. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2007-07-25sh: remove support for sh73180 and solution engine 73180Magnus Damm
This patch removes old dead code: - kill off sh73180 cpu support - get rid of broken solution engine 73180 board support Signed-off-by: Magnus Damm <damm@igel.co.jp> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2007-07-25sh: remove old broken pint codeMagnus Damm
The code in arch/sh/kernel/cpu/irq/pint.c doesn't compile, so let's get rid of it to make space for a future pint implementation on top of intc. Signed-off-by: Magnus Damm <damm@igel.co.jp> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2007-07-20sh: intc - add support for SH7750 and its variantsMagnus Damm
This patch converts the cpu specific 7750 setup code to use the new intc controller. Many new vectors are added and multiple processor variants including 7091, 7750, 7750s, 7750r, 7751 and 7751r should all have the correct vectors hooked up. IRLM interrupts can be enabled using ipr_irq_enable_irlm() which now is marked as __init. Signed-off-by: Magnus Damm <damm@igel.co.jp> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2007-07-20sh: cpufreq: clock framework support.Paul Mundt
This gets the SH cpufreq working again. We follow the changes in the AVR32 implementation for wrapping in to the clock framework. CPUs that wish to use this are required to define rate rounding primitives in order to satisfy clk_round_rate(). This works well enough for the common case, though we should look at unifying this driver across all of the platforms that implement clock framework support in one capacity or another. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2007-07-20sh: intc - add support for 7780Magnus Damm
This patch converts the cpu specific 7780 setup code to use the new intc controller. Many new vectors are added and also support for external interrupt sense configuration. So with this patch it is now possible to configure external interrupt pins as edge or level triggered using set_irq_type(). No external interrupts are registered by default. Use plat_irq_setup_pins() to select between IRQ or IRL mode. This patch also fixes the Alarm IRQ for the RTC. Signed-off-by: Magnus Damm <damm@igel.co.jp> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2007-07-20sh: cpufreq: Fix driver dependencies and flag as broken.Paul Mundt
This is only supported on SH-4, so don't expose it for the other CPUs. Additionally, it's suffered some bitrot, so add a BROKEN dependency as well until we fix it up. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2007-07-20sh: intc - shared IPR and INTC2 controllerMagnus Damm
This is the second version of the shared interrupt controller patch for the sh architecture, fixing up handling of intc_reg_fns[]. The three main advantages with this controller over the existing ones are: - Both priority (ipr) and bitmap (intc2) registers are supported - External pin sense configuration is supported, ie edge vs level triggered - CPU/Board specific code maps 1:1 with datasheet for easy verification This controller can easily coexist with the current IPR and INTC2 controllers, but the idea is that CPUs/Boards should be moved over to this controller over time so we have a single code base to maintain. Signed-off-by: Magnus Damm <damm@igel.co.jp> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2007-06-20Merge branch 'x3'Paul Mundt
2007-06-20sh: Preliminary support for the SH-X3 CPU.Paul Mundt
This adds basic support for UP SH-X3. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2007-06-20sh: Fix up cf-enabler dependency for SE boards.Paul Mundt
This was using CONFIG_SH_SOLUTION_ENGINE, where we really wanted CONFIG_SOLUTION_ENGINE. While we're at it, move the whole CF enabler mess somewhere better suited. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2007-06-11sh: Tidy up dependencies for SH-2 build.Paul Mundt
SH-2 can presently get in to some pretty bogus states, so we tidy up the dependencies a bit and get it all building again. This gets us a bit closer to a functional allyesconfig and allmodconfig, though there are still a few things to fix up. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2007-06-08sh: Fix SH-4 CPU selects.Paul Mundt
Now that select no longer works for selecting the "closest" CPU, we have to explicitly reference the precise sub-type in the few places where it actually matters (presently only setup code and some legacy sh-sci cruft). Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2007-06-08sh: Rip out special unknown machvec.Paul Mundt
This kills off the BareCPU board as a "special" machvec, rather, we leave this as a default for when no other vector is available, or when we want to use it in combination with other vectors for testing with generic ops. As sh_mv is copied out anyways (or overloaded when an alternate vector is explicitly selected), this doesn't consume any additional memory. The generic machvec can be forcibly selected with sh_mv=generic, or by not having any other boards enabled. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2007-06-08sh: Rework CPU/board dependencies.Paul Mundt
This was a big mess, rework the logic a bit so that we constrain to a particular subtype and figure out the board support based on that. This makes building subtype specific kernels supporting multiple boards possible again. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2007-05-09sh: clockevent/clocksource/hrtimers/nohz TMU support.Paul Mundt
This adds basic support for clockevents and clocksources, presently only implemented for TMU-based systems (which are the majority of SH-3 and SH-4 systems). The old NO_IDLE_HZ implementation is also dropped completely, the only users of this were on TMU-based systems anyways. More work needs to be done to generalize the TMU handling, in that the current implementation is rather tied to the notion of TMU0 and TMU1 utilization. Additionally, as more SH timers switch over to this scheme, we'll be able to gut most of the remaining system timer infrastructure that existed before. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2007-05-07sh: Solution Engine 7722 board support.Ryusuke Sakato
This adds more full-featured support for the SH7722 Solution Engine. Previously this was using the generic board, and lacked most of the peripheral support. Signed-off-by: Ryusuke Sakato <sakato.ryusuke@renesas.com> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2007-05-07sh: kdump support.Paul Mundt
This adds support for kexec based crash dumps. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2007-05-07sh: SH7780 Solution Engine board support.Nobuhiro Iwamatsu
This adds support for the SH7780-based Solution Engine reference board. Signed-off-by: Nobuhiro Iwamatsu <nobuhiro.iwamatsu.zh@hitachi.com> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2007-05-07sh: L-BOX RE2 support.Nobuhiro Iwamatsu
This adds support for the L-BOX RE2 router. http://www.nttcom.co.jp/l-box/ L-BOX RE2 is a SH7751R-based router. It has CF, Cardbus, serial, and LAN x2. This is one of the very few SH boards that a general person can obtain now. The L-BOX shipped with a 2.4.28 kernel, this is a rewritten patch adding it to current git. Signed-off-by: Nobuhiro Iwamatsu <iwamatsu@nigauri.org> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2007-05-07sh: Add SH7785 Highlander board support (R7785RP).Paul Mundt
This adds preliminary support for the SH7785-based Highlander board. Some of the Highlander support code is reordered so that most of it can be reused directly. This also plugs in missing SH7785 checks in the places that need it, as this is the first board to support the CPU. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2007-05-07sh: generic BUG() support.Paul Mundt
Wire up GENERIC_BUG for SH. This moves off of the special bug frame and on to the generic struct bug_entry. Roughly the same semantics are retained, and we can kill off some of the verbose BUG() reporting code. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2007-05-07sh: speculative execution support for SH7780.Paul Mundt
SH7780 has a speculative execution mode where it can speculatively perform an instruction fetch for subroutine returns, this allows it to be enabled. There are some various pitfalls associated with this mode, so it's left as depending on CONFIG_EXPERIMENTAL and not enabled by default. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2007-02-14sh: Kill off dead bigsur and ec3104 boards.Paul Mundt
Neither of these have had any maintenance in years, and there's no interest in keeping them straggling along. These have already been slated for removal some time, so finally just get rid of them. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2007-02-13sh: heartbeat consolidation for banked LEDs.Paul Mundt
This consolidates the various board heartbeat LED implementations, used for strobing the load average across a LED bank. Those boards not implementing a full bank can hook in via the LED class. We leave the compat hook in the machvec for now until those non-banked boards are able to migrate to the drivers/leds. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2007-02-13sh: add SH_CLK_MD Kconfig default.Andrew Morton
This option needs a default - otherwise `make allmodconfig' gets stuck in an infinite loop. Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2007-02-13sh: More tidying for large base pages.Paul Mundt
There were a few more things that needed fixing up, namely THREAD_SIZE and the TLB miss handler where certain PTRS_PER_PGD == PTRS_PER_PTE assumptions were being made. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2007-02-09[APM] SH: Convert to use shared APM emulation.Paul Mundt
Signed-off-by: Paul Mundt <lethal@linux-sh.org> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2006-12-12sh: Trivial build fixes for SH-2 support.Yoshinori Sato
Signed-off-by: Yoshinori Sato <ysato@users.sourceforge.jp> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2006-12-08[PATCH] LOG2: Implement a general integer log2 facility in the kernelDavid Howells
This facility provides three entry points: ilog2() Log base 2 of unsigned long ilog2_u32() Log base 2 of u32 ilog2_u64() Log base 2 of u64 These facilities can either be used inside functions on dynamic data: int do_something(long q) { ...; y = ilog2(x) ...; } Or can be used to statically initialise global variables with constant values: unsigned n = ilog2(27); When performing static initialisation, the compiler will report "error: initializer element is not constant" if asked to take a log of zero or of something not reducible to a constant. They treat negative numbers as unsigned. When not dealing with a constant, they fall back to using fls() which permits them to use arch-specific log calculation instructions - such as BSR on x86/x86_64 or SCAN on FRV - if available. [akpm@osdl.org: MMC fix] Signed-off-by: David Howells <dhowells@redhat.com> Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Cc: Paul Mackerras <paulus@samba.org> Cc: Herbert Xu <herbert@gondor.apana.org.au> Cc: David Howells <dhowells@redhat.com> Cc: Wojtek Kaniewski <wojtekka@toxygen.net> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-12-06sh: sh775x/titan fixes for irq header changes.Jamie Lenehan
The following moves the creation of IPR interupts into setup-7750.c and updates a few other things to make it all work after the "Drop CPU subtype IRQ headers" commit. It boots and runs fine on my titan board. - adds an ipr_idx to the ipr_data and uses a function in the subtype code to calculate the address of the IPR registers - adds a function to enable individual interrupt mode for externals in the subtype code and calls that from the titan board code instead of doing it directly. - I changed the shift in the ipr_data to be the actual # of bits to shift, instead of the numnber / 4 - made it easier to match with the manual. Signed-off-by: Jamie Lenehan <lenehan@twibble.org> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2006-12-06sh: stacktrace/lockdep/irqflags tracing support.Paul Mundt
Wire up all of the essentials for lockdep.. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2006-12-06sh: dyntick infrastructure.Paul Mundt
This adds basic NO_IDLE_HZ support to the SH timer API so timers are able to wire it up. Taken from the ARM version, as it fit in to our API with very few changes needed. Signed-off-by: Paul Mundt <lethal@linux-sh.org>