Commit Graph

962 Commits

Author SHA1 Message Date
Magnus Damm
098dee99d1 sh: add enable()/disable()/set_rate() to div6 code
This patch updates the div6 clock helper code to add support
for enable(), disable() and set_rate() callbacks.

Needed by the camera clock enabling board code on Migo-R.

Signed-off-by: Magnus Damm <damm@igel.co.jp>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-06-11 09:12:58 +03:00
Magnus Damm
0d4fdbb64f sh: rework mode pin code
This patch reworks the mode pin code to keep the pin
definitions in one place. The mode pins values are now
the value of the bit instead of bit number.

With this patch in place the sh7785 header file contains
mode pin comments. The sh7785 clock code and the sh7785lcr
board code are updated to reflect the new shared mode pins.

Signed-off-by: Magnus Damm <damm@igel.co.jp>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-06-11 09:08:53 +03:00
Magnus Damm
2693e2740d sh: clock div6 helper code
This patch adds div6 clock helper code. The div6 clocks
are simply 6-bit divide-by-n modules where n is 1 to 64.

Needed for vclk on sh7722, sh7723, sh7343 and sh7366.
sh7724 needs this even more for vclk, fclka, fclkb,
irdaclk and spuclk.

Signed-off-by: Magnus Damm <damm@igel.co.jp>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-06-11 09:07:13 +03:00
Magnus Damm
a50de78dc6 sh: clock div4 frequency table offset fix
This patch fixes the per clock offset calculation in
sh_clk_div4_register(). Without this patch the offset
to the frequency table for each clock is incorrect.

Signed-off-by: Magnus Damm <damm@igel.co.jp>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-06-11 09:07:04 +03:00
Kuninori Morimoto
138f025267 sh: sh7723: L2 cache initialization.
Signed-off-by: Kuninori Morimoto <morimoto.kuninori@renesas.com>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-06-02 12:12:59 +09:00
Kuninori Morimoto
b4bd9eb0d8 sh: sh7724: L2 cache initialization.
Signed-off-by: Kuninori Morimoto <morimoto.kuninori@renesas.com>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-06-02 12:12:57 +09:00
Kuninori Morimoto
fab88d9fe9 sh: add weak l2_cache_init function.
Signed-off-by: Kuninori Morimoto <morimoto.kuninori@renesas.com>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-06-02 12:12:55 +09:00
Paul Mundt
0bf8513ed0 sh: Tidy up SH-4A boot_cpu_data.flags probing.
This tidies up the boot_cpu_data.flags probing on SH-4A. All of them have
a few things in common, which we can blindly set, rather than having each
subtype have to set the same flags. We can also make assumptions about
cache ways and the validity of PTEA, so this also kills off CPU_HAS_PTEA
as a config option. There was also a bug in the FPU probing, which is now
tidied up.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-06-01 19:50:08 +09:00
Paul Mundt
7863d3f7ae sh: Tidy up the optional L2 probing, wire it up for SH7786.
This tidies up the L2 probing, as it may or may not be implemented on a
CPU, regardless of whether it is supported. This converts the cvr
validity checks from BUG_ON()'s to simply clearing the CPU_HAS_L2_CACHE
flag and moving on with life.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-06-01 19:38:41 +09:00
Magnus Damm
43909a9380 sh: hook up shared div4 clock code to sh7785
Hook up the shared 4-bit divisor clock code to sh7785.

Signed-off-by: Magnus Damm <damm@igel.co.jp>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-06-01 18:07:50 +09:00
Magnus Damm
a1153e27ee sh: shared div4 clock code
Add shared code for 4-bit divisor clocks.

Processor specific code can use SH_CLK_DIV4()
to initialize div4 clocks, and then use
sh_clk_div4_register() for registration.

Signed-off-by: Magnus Damm <damm@igel.co.jp>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-06-01 18:07:37 +09:00
Magnus Damm
e89d53e605 sh: hook up shared mstp32 clock code to sh7785
Hook up the shared 32-bit module stop bit code to sh7785.

Signed-off-by: Magnus Damm <damm@igel.co.jp>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-06-01 18:06:36 +09:00
Magnus Damm
6881e8bf3d sh: shared mstp32 clock code
Add shared 32-bit module stop bit clock support.

Processor specific code can use SH_CLK_MSTP32()
to initialize module stop bit clocks, and then
use sh_clk_mstp32() for registration.

Signed-off-by: Magnus Damm <damm@igel.co.jp>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-06-01 18:05:37 +09:00
Kuninori Morimoto
98fbe45bea sh: SH7724 has an L2 cache.
Add the CPU_HAS_L2_CACHE flag to SH7724.

Signed-off-by: Kuninori Morimoto <morimoto.kuninori@renesas.com>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-06-01 15:59:03 +09:00
Magnus Damm
1823f6d5e6 sh: sh7785 pll configuration from mode pin
This patch modifies the sh7785 clock code to use the MODE4
value to switch between 72x and 36x PLL multiplication.

Signed-off-by: Magnus Damm <damm@igel.co.jp>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-06-01 15:57:12 +09:00
Magnus Damm
eb9b9b56ee sh: boot word / mode pin support V2
Add mode pin support for the SuperH architecture V2.

With this patch applied the board code can add their
own function to export the cpu mode pin configuration.
In most cases this will be a constant bitmap, but
boards that allow reading this from a register can
instead read out the pin state from hardware.

The code warns if a pin is tested but no board specific
mode pin function has been provided.

Signed-off-by: Magnus Damm <damm@igel.co.jp>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-06-01 15:44:49 +09:00
Paul Mundt
464c9e1037 Merge branch 'sh/clkfwk' 2009-05-26 23:50:40 +09:00
Magnus Damm
61ce5393e4 sh: remove clk_ops->build_rate_table()
This patch removes the ->build_rate_table() callback,
->recalc() may instead be used for this purpose.

Signed-off-by: Magnus Damm <damm@igel.co.jp>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-05-26 17:08:45 +09:00
Magnus Damm
df109e630f sh: use shared frequency tables on sh7785
This patch converts the sh7785 clock code to make use
of clk_rate_table_build() and clk_rate_table_round().
The ->build_rate_table() callback is removed, the
table building is instead handled in ->recalc().

Signed-off-by: Magnus Damm <damm@igel.co.jp>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-05-26 17:08:42 +09:00
Magnus Damm
c94a85746f sh: add shared clock framework frequency table code
Add SuperH-specific clock framework helper functions:
- clk_rate_table_build() - build cpufreq table from divisors/multipliers
- clk_rate_table_round() - use cpufreq table to find matching frequency

Signed-off-by: Magnus Damm <damm@igel.co.jp>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-05-26 17:08:39 +09:00
Magnus Damm
c9904dd159 sh: add pll_clk to sh7785
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>
2009-05-26 17:08:36 +09:00
Paul Mundt
3709ab8dfa sh: irq: Fix up imask build warnings.
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-05-26 13:52:28 +09:00
Paul Mundt
36aa1e32f4 sh: clkfwk: Make clock-cpg usable for non-legacy platforms.
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>
2009-05-22 14:00:34 +09:00
Paul Mundt
2f3ed17e01 sh: Wrap irq_to_desc_alloc_cpu() around CONFIG_SPARSE_IRQ temporarily.
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>
2009-05-22 13:47:52 +09:00
Roel Kluin
7fc1e5c15f sh: clkfwk: beyond ARRAY_SIZE of onchip_ops for sh7722.
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>
2009-05-22 12:58:02 +09:00
Magnus Damm
30cff215b5 sh: clkfwk branch compile fix for clock-sh7722
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>
2009-05-22 02:57:11 +09:00
Paul Mundt
d8586ba6e1 sh: irq: Provide an arch_probe_nr_irqs() that wraps the machvec def.
This is just a simple arch_probe_nr_irqs() stub that wraps to the
platform defined number of IRQs. This can be made gradually more
intelligent based on what we can infer from the INTC tables and so on.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-05-22 01:36:13 +09:00
Paul Mundt
05ff3004d2 sh: irq: Teach ipr and intc about dynamically allocating irq_descs.
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>
2009-05-22 01:28:33 +09:00
Paul Mundt
fa1d43ab45 sh: irq: Convert from irq_desc[] to irq_to_desc().
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>
2009-05-22 01:26:16 +09:00
Paul Mundt
55620c86eb sh: irq: Rework the SR.IMASK bitmap handling.
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>
2009-05-22 01:16:17 +09:00
Magnus Damm
9304d0ccf1 sh: intc tables for sh7770
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>
2009-05-14 17:42:31 +09:00
Paul Mundt
549b5e358d sh: clkfwk: Add MSTP bits to SH7785 clock framework.
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>
2009-05-14 17:38:46 +09:00
Paul Mundt
cedcf3366f sh: clkfwk: Map tree hierarchy in debugfs.
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>
2009-05-13 21:51:28 +09:00
Paul Mundt
cc96eace48 sh: clkfwk: rate table construction and rounding for SH7785.
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>
2009-05-13 20:28:15 +09:00
Paul Mundt
a77b5ac0ea sh: clkfwk: Update SH7785 for refactored clock framework.
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>
2009-05-13 17:55:00 +09:00
Paul Mundt
253b0887b3 sh: clkfwk: Rework legacy CPG clock handling.
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>
2009-05-13 17:38:11 +09:00
Paul Mundt
100890c55e sh: clkfwk: Provide a generic clk_set_rate_ex() path for root clocks.
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>
2009-05-13 17:05:51 +09:00
Paul Mundt
d672fef027 sh: clkfwk: Handle NULL clkops for root clocks.
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>
2009-05-13 17:03:09 +09:00
Paul Mundt
af777ce42d sh: clkfwk: module_clk -> peripheral_clk rename.
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>
2009-05-13 16:59:40 +09:00
Paul Mundt
fd5b12458b Merge branch 'master' into sh/clkfwk 2009-05-12 19:54:36 +09:00
Paul Mundt
8be5f1a68f sh: Kill off the remnants of the old timer code.
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>
2009-05-12 19:53:55 +09:00
Magnus Damm
f19900b2e6 sh: remove old TMU driver
This patch removes the old TMU driver (CONFIG_SH_TMU/timer-tmu.c)

As replacement, select the sh_tmu driver with CONFIG_SH_TIMER_TMU
and configure timer channel using platform data.

If multiple TMU channels are enabled using platform data, use the
earlytimer parameter on the kernel command line to select channel.
For instance, use "earlytimer=sh_tmu.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>
2009-05-12 19:53:14 +09:00
Magnus Damm
2b23a8826a sh: CMT platform data for sh7720/sh7721
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>
2009-05-12 19:53:09 +09:00
Magnus Damm
4a1a5a2f60 sh: TMU platform data for sh7720/sh7721
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>
2009-05-12 19:53:01 +09:00
Magnus Damm
e5ad00896a sh: TMU platform data for sh7710/sh7712
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>
2009-05-12 19:52:52 +09:00
Magnus Damm
c8a9011bce sh: TMU platform data for sh7706/sh7707/sh7708/sh7709
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>
2009-05-12 19:52:45 +09:00
Magnus Damm
acd664ab54 sh: TMU platform data for sh7705
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>
2009-05-12 19:52:39 +09:00
Magnus Damm
6a3501b63d sh: TMU platform data for sh7724
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>
2009-05-12 19:37:52 +09:00
Magnus Damm
f2710ebcd0 sh: TMU platform data for sh7366
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>
2009-05-12 19:37:39 +09:00
Magnus Damm
e37677a429 sh: TMU platform data for sh7343
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>
2009-05-12 19:37:33 +09:00