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path: root/arch/sh/kernel/cpu
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2009-05-26sh: add pll_clk to sh7785Magnus Damm1-15/+33
This patch converts the sh7785 pll implementation from the all-in-one code in frqmr_recalc() and frqmr_build_rate_table() to a separate struct clk. This allows us to remove the processor specific multiplier and use generic rate table functions. Signed-off-by: Magnus Damm <damm@igel.co.jp> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-05-26sh: irq: Fix up imask build warnings.Paul Mundt1-2/+2
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-05-22sh: clkfwk: Make clock-cpg usable for non-legacy platforms.Paul Mundt2-1/+3
This adds a new SH_CLK_CPG for parts that have CPG support. SH_CLK_CPG_LEGACY is made to depend on this, and still needs to be set for platforms that want clock-cpg to register the legacy clocks. With this new config item in place, it is now possible to start layering more generic CPG code in place while other platforms transition off of the legacy clocks. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-05-22sh: Wrap irq_to_desc_alloc_cpu() around CONFIG_SPARSE_IRQ temporarily.Paul Mundt1-0/+4
irq_to_desc_alloc_cpu() has been renamed to irq_to_desc_alloc_node() in -next, but as we can not presently enable SPARSE_IRQ without the early irq_desc alloc patch, protect it with an ifdef until the interface has settled and we are ready to enable it system-wide. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-05-22sh: clkfwk: beyond ARRAY_SIZE of onchip_ops for sh7722.Roel Kluin1-1/+1
Do not go beyond ARRAY_SIZE of onchip_ops Signed-off-by: Roel Kluin <roel.kluin@gmail.com> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-05-21sh: clkfwk branch compile fix for clock-sh7722Magnus Damm1-1/+1
Fix clkfwk branch compile error in clock-sh7722.c. Signed-off-by: Magnus Damm <damm@igel.co.jp> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-05-21sh: irq: Teach ipr and intc about dynamically allocating irq_descs.Paul Mundt1-0/+8
This hooks in irq_to_desc_alloc_cpu() to the necessary code paths in the intc and ipr controller registration paths. As these are the primary call paths for all SH CPUs, this alone will make all CPUs sparse IRQ ready. There is the added benefit now that each CPU contains specific IPR and INTC tables, so only the vectors with interrupt sources backing them will ever see an irq_desc instantiation. This effectively packs irq_desc down to match the CPU, rather than padding NR_IRQS out to cover the valid vector range. Boards with extra sources will still have to fiddle with the nr_irqs setting, but they can continue doing so through the machvec as before. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-05-21sh: irq: Convert from irq_desc[] to irq_to_desc().Paul Mundt1-9/+1
This converts a few places that were using the old irq_desc[] array over to the shiny new irq_to_desc() helper. Preperatory work for sparse irq support. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-05-21sh: irq: Rework the SR.IMASK bitmap handling.Paul Mundt1-48/+16
This tidies up how the SR.IMASK bitmap is managed, using the bitmap API directly instead. At the same time, tidy up the irq_chip conversion a bit. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-05-14sh: intc tables for sh7770Magnus Damm1-0/+246
This patch adds INTC tables for sh7770, thanks goes to Paul for the first prototype version. Signed-off-by: Magnus Damm <damm@igel.co.jp> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-05-14sh: clkfwk: Add MSTP bits to SH7785 clock framework.Paul Mundt3-8/+77
This plugs in all of the MSTP functions in to the clock framework, and hands them off to the platform devices that want them. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-05-13sh: clkfwk: Map tree hierarchy in debugfs.Paul Mundt1-26/+84
This adopts the OMAP clock framework debugfs bits and replaces the aging procfs bits. The procfs clocks entry was primarily a debugging aid, and used to be tied in to cpuinfo before the clock list grew too unweildly. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-05-13sh: clkfwk: rate table construction and rounding for SH7785.Paul Mundt2-13/+99
This adds support for constructing a rate table by looking at potential divisors for a specified clock. Each FQRMR clock is given its own table. Presently each table is rebuilt when the parent propagates down a new rate, so some more logic needs to be added to do this more intelligently. Additionally, a fairly generic round_rate() implementation is then layered on top of it, which subsequently provides us with cpufreq support. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-05-13sh: clkfwk: Update SH7785 for refactored clock framework.Paul Mundt1-101/+102
This updates the SH7785 CPU code as well as the SH7785LCR board support code for making use of the newly refactored clock framework. Support for the legacy CPG clocks is dropped at this point, with the extal frequency fed in from the board code. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-05-13sh: clkfwk: Rework legacy CPG clock handling.Paul Mundt10-62/+101
This moves out the old legacy CPG clocks to their own file, and converts over the existing users. With these clocks going away and each CPU dealing with them on their own, CPUs can gradually move over to the new interface. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-05-13sh: clkfwk: Provide a generic clk_set_rate_ex() path for root clocks.Paul Mundt1-9/+16
In the case of root clocks (such as clkin oscillators, extal, etc.), the rate information is entirely platform dependent and needs to be lazily set and propagated from the platform code. This provides a method for establishing the rate update on these types of clocks that define no set_rate() op of their own. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-05-13sh: clkfwk: Handle NULL clkops for root clocks.Paul Mundt1-3/+3
root clocks may simply be placeholders for rate and ancestry information, and have no real associated operations of their own. Account for this, so we are still able to use these sorts of clocks for rate propagation. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-05-13sh: clkfwk: module_clk -> peripheral_clk rename.Paul Mundt20-96/+96
For consistenct naming, and to allow us to fix up some confusion in the SH-Mobile clock framework, amongst other places. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-05-12Merge branch 'master' into sh/clkfwkPaul Mundt11-2/+1652
2009-05-12sh: Kill off the remnants of the old timer code.Paul Mundt1-1/+0
Now with all of the TMU users moved over to the new TMU driver, and the old TMU driver killed off, the left-over infrastructure can go along with it. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-05-12sh: CMT platform data for sh7720/sh7721Magnus Damm1-0/+161
This patch adds CMT platform data for sh7720 and sh7721. All 5 32-bit CMT channels unfortunately share a single IRQ. 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>
2009-05-12sh: TMU platform data for sh7720/sh7721Magnus Damm1-0/+109
This patch adds TMU platform data for sh7720 and sh7721. 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>
2009-05-12sh: TMU platform data for sh7710/sh7712Magnus Damm1-0/+108
This patch adds TMU platform data for sh7710 and sh7712. 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>
2009-05-12sh: TMU platform data for sh7706/sh7707/sh7708/sh7709Magnus Damm1-0/+108
Add TMU platform data for sh7706/sh7707/sh7708/sh7709. 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>
2009-05-12sh: TMU platform data for sh7705Magnus Damm1-0/+108
This patch adds TMU platform data for sh7705. 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>
2009-05-12sh: TMU platform data for sh7724Magnus Damm1-0/+195
This patch adds TMU platform data for sh7724. 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>
2009-05-12sh: TMU platform data for sh7366Magnus Damm1-0/+98
This patch adds TMU platform data for sh7366. 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>
2009-05-12sh: TMU platform data for sh7343Magnus Damm1-0/+98
This patch adds TMU platform data for sh7343. 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>
2009-05-12sh: add sh4-202 INTC tablesMagnus Damm1-1/+55
This patch adds INTC tables for sh4-202 with support for HUDI, TMU0, TMU1, TMU2, RTC, SCIF and WDT. Signed-off-by: Magnus Damm <damm@igel.co.jp> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-05-12sh: TMU platform data for sh4-202Magnus Damm1-0/+108
This patch adds TMU platform data for sh4-202. 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>
2009-05-12sh: TMU platform data for sh7770Magnus Damm1-0/+300
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>
2009-05-12sh: TMU platform data for sh7763Magnus Damm1-0/+204
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>
2009-05-12sh: clkfwk: Use arch_clk_init() for on-chip clock registration.Paul Mundt7-19/+7
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>
2009-05-12sh: clkfwk: Handle clk_get_sys() returning an ERR_PTR.Paul Mundt1-1/+1
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>
2009-05-12sh: clkfwk: Wire up clk_get_sys() support.Paul Mundt1-0/+59
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>
2009-05-12sh: clkfwk: Kill off clk_recalc_rate().Paul Mundt2-15/+1
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>
2009-05-12sh: clkfwk: Tidy up on-chip clock registration and rate propagation.Paul Mundt6-79/+19
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>
2009-05-12sh: clkfwk: Improve the generic clk_set_parent() implementation.Paul Mundt1-0/+20
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>
2009-05-12sh: clkfwk: Fix up the clk_enable() error path.Paul Mundt2-30/+52
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>
2009-05-12sh: clkfwk: Convert SH-Mobile CPUs to use CLK_ENABLE_ON_INIT.Paul Mundt6-209/+183
Kill off all of the clk_always_enabled leftovers and use the new flag directly. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-05-12sh: clkfwk: Consolidate the ALWAYS_ENABLED / NEEDS_INIT mess.Paul Mundt7-73/+43
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>
2009-05-11sh: clkfwk: refactor rate propagation.Paul Mundt2-49/+79
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>
2009-05-11sh: clkfwk: Add a followparent_recalc() helper.Paul Mundt5-24/+10
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>
2009-05-11sh: clkfwk: Make recalc return an unsigned long.Paul Mundt21-165/+162
This is prep work for cleaning up some of the rate propagation bits. Trivial conversion. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-05-11sh: TMU platform data for sh7780Magnus Damm1-0/+204
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>
2009-05-11sh: multiple vectors per irq - sh7760Magnus Damm1-20/+11
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>
2009-05-11sh: TMU platform data for sh7760Magnus Damm1-0/+109
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>
2009-05-11sh: TMU platform data for sh775xMagnus Damm1-0/+187
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>
2009-05-08sh: Add clock id to sh-sci platform data on SH-Mobile CPUs.Paul Mundt5-0/+20
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>
2009-05-08sh: TMU platform data for SH-X3 proto CPU.Paul Mundt1-2/+207
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
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