Commit graph

22 commits

Author SHA1 Message Date
Grant Likely
476eb49126 powerpc/irq: Stop exporting irq_map
First step in eliminating irq_map[] table entirely

Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2011-05-04 15:02:15 +10:00
Thomas Gleixner
ec775d0e70 powerpc: Convert to new irq_* function names
Scripted with coccinelle.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2011-03-29 14:48:12 +02:00
Thomas Gleixner
7bf811a874 powerpc: cpm2_pic: Use IRQCHIP_EOI_IF_HANDLED
The core code provides the same functionality when the
IRQCHIP_EOI_IF_HANDLED flag is set for the irq chip.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2011-03-29 14:48:10 +02:00
Thomas Gleixner
a28ab38c44 powerpc: cpm2_pic: Cleanup flow type handling
The core irq_set_type() function updates the flow type when the chip
callback returns 0. So setting the type is bogus.

The new core code allows to update the type in irq_data and return
IRQ_SET_MASK_OK_NOCOPY, so the core code will not touch it, except for
setting the IRQ_LEVEL flag.

Use the proper accessors for setting the irq handlers.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2011-03-29 14:48:09 +02:00
Thomas Gleixner
98488db9ff powerpc: Use proper accessors for IRQ_* flags
Use the proper accessors instead of open access to irq_desc.
Converted with coccinelle.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2011-03-29 14:48:08 +02:00
Lennert Buytenhek
c47eefa660 powerpc: sysdev/cpm2_pic irq_data conversion.
Signed-off-by: Lennert Buytenhek <buytenh@secretlab.ca>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2011-03-10 11:04:01 +11:00
Anton Blanchard
fc380c0c8a powerpc: Remove whitespace in irq chip name fields
Now we use printf style alignment there is no need to manually space
these fields.

Signed-off-by: Anton Blanchard <anton@samba.org>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2010-02-17 14:02:48 +11:00
Mark Ware
b22b97c15e powerpc/cpm2_pic: Allow correct flow_types for port C interrupts
Port C interrupts can be either falling edge, or either edge.
Other external interrupts are either falling edge or active low.
Tested on a custom 8280 based board.

Signed-off-by: Mark Ware <mware@elphinstone.net>
Acked-by: Anton Vorontsov <avorontsov@ru.mvista.com>
Acked-by: Scott Wood <scottwood@freescale.com>
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
2009-12-10 13:48:36 -06:00
Roman Fietze
40d50cf7ca powerpc: Make "intspec" pointers in irq_host->xlate() const
Writing a driver using SCLPC on the MPC5200B I detected, that the
intspec arrays to map irqs to Linux virq cannot be const, because the
mapping and xlate functions only take non const pointers. All those
functions do not modify the intspec, so a const pointer could be used.

Signed-off-by: Roman Fietze <roman.fietze@telemotive.de>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2009-12-09 17:10:37 +11:00
Thomas Gleixner
b27df67248 powerpc: Fixup last users of irq_chip->typename
The typename member of struct irq_chip was kept for migration purposes
and is obsolete since more than 2 years. Fix up the leftovers.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: linuxppc-dev@ozlabs.org
Acked-by: Geoff Levand <geoffrey.levand@am.sony.com>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2009-11-24 14:32:45 +11:00
Michael Ellerman
6cff46f4bc powerpc: Remove get_irq_desc()
get_irq_desc() is a powerpc-specific version of irq_to_desc(). That
is reason enough to remove it, but it also doesn't know about sparse
irq_desc support which irq_to_desc() does (when we enable it).

Signed-off-by: Michael Ellerman <michael@ellerman.id.au>
Acked-by: Grant Likely <grant.likely@secretlab.ca>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2009-10-30 17:20:55 +11:00
paulfax
7f3ea17f31 powerpc/cpm2: Fix set interrupt type
This is a simple change to correct problems when using set_irq_type
on platforms using CPM2.  This code corrects the problem on most platform
but may have issues on 8272 derived platforms for some interrupts.

On 8272 PC2 & 3 are missing and PC 23 & 29 are added, which this patch
does not address.

Signed-off-by: Paul Bilke <paul@conspiracy.net>
Reviewed-by: Anton Vorontsov <avorontsov@ru.mvista.com>
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
2009-02-06 10:44:02 -06:00
Michael Ellerman
19fc65b525 powerpc: Fix irq_alloc_host() reference counting and callers
When I changed irq_alloc_host() to take an of_node
(52964f87c6: "Add an optional
device_node pointer to the irq_host"), I botched the reference
counting semantics.

Stephen pointed out that it's irq_alloc_host()'s business if
it needs to take an additional reference to the device_node,
the caller shouldn't need to care.

Signed-off-by: Michael Ellerman <michael@ellerman.id.au>
Signed-off-by: Paul Mackerras <paulus@samba.org>
2008-06-09 13:51:16 +10:00
Scott Wood
449012daa9 [POWERPC] cpm2: Infrastructure code cleanup.
Mostly sparse fixes (__iomem annotations, etc); also, cpm2_immr
is used rather than creating many temporary mappings.

Signed-off-by: Scott Wood <scottwood@freescale.com>
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
2007-10-04 11:02:04 -05:00
Michael Ellerman
6815800601 [POWERPC] Provide a default irq_host match, which matches on an exact of_node
The most common match semantic is an exact match based on the device node.
So provide a default implementation that does this, and hook it up if no
match routine is specified.

Signed-off-by: Michael Ellerman <michael@ellerman.id.au>
Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-09-14 01:33:20 +10:00
Michael Ellerman
52964f87c6 [POWERPC] Add an optional device_node pointer to the irq_host
The majority of irq_host implementations (3 out of 4) are associated
with a device_node, and need to stash it somewhere. Rather than having
it somewhere different for each host, add an optional device_node pointer
to the irq_host structure.

Signed-off-by: Michael Ellerman <michael@ellerman.id.au>
Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-09-14 01:33:20 +10:00
Vitaly Bordug
73844ecbaa [POWERPC] cpm2: CPM2 interrupt controller fix
This contains important fixes for the CPM2 PIC code. Eliminated
CPM_IRQ_OFFSET, pulling the respective interrupt numbers from the interrupt
mapping. Updated devicetree files to reflect that. Changed direct
IC-related IO accesses to the IO accessors. Fixed all the sense values to
keep coherency with ipic. In the current code, CPM2 stuff will have no IRQs
and hence could be hardly usable.

Signed-off-by: Vitaly Bordug <vbordug@ru.mvista.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-02-07 14:03:20 +11:00
Mariusz Kozlowski
06c3147564 [POWERPC] arch/powerpc/sysdev/cpm2_pic.c of_node_get cleanup
Remove redundant argument check for of_node_get().
It's ok to remove 'node' check because in real life cpm2_pic_init()
never gets called with node == NULL.

Signed-off-by: Mariusz Kozlowski <m.kozlowski@tuxland.pl>
Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-01-24 21:13:57 +11:00
Olaf Hering
35a84c2f56 [POWERPC] Fix up after irq changes
Remove struct pt_regs * from all handlers.
Also remove the regs argument from get_irq() functions.
Compile tested with arch/powerpc/config/* and
arch/ppc/configs/prep_defconfig

Signed-off-by: Olaf Hering <olaf@aepfle.de>
Signed-off-by: Paul Mackerras <paulus@samba.org>
2006-10-07 22:08:26 +10:00
Vitaly Bordug
ed943c1fab POWERPC: 8272ads merge to powerpc: common stuff
This has modules of common directories related to the
mpc8272ADS board, mainly common cpm2 changes and fsl_soc.c
portions related to the bitbang MDIO and other mechanisms specific
for this family.

Signed-off-by: Vitaly Bordug <vbordug@ru.mvista.com>
2006-10-03 21:36:00 +04:00
Vitaly Bordug
fc8e50e349 POWERPC: Get rid of remapping the whole immr
The stuff below cleans up the code attempting to remap the whole cpm2_immr
early, as well as places happily assuming that fact. This is more like the 2.4
legacy stuff, and is at least confusing and unclear now.

To keep the world comfortable, a new mechanism is introduced: before accessing
specific immr register/register set, one needs to map it, using cpm2_map(<reg>),
for instance, access to CPM command register will look like
	volatile cpm_cpm2_t *cp = cpm2_map(im_cpm);
keeping the code clear, yet without "already defined somewhere" cpm2_immr.

So far, unmapping code is not implemented, but it's not a big deal to add it,
if the whole idea makes sense.

Signed-off-by: Vitaly Bordug <vbordug@ru.mvista.com>
2006-09-21 22:37:58 +04:00
Vitaly Bordug
b0c110b4f1 POWERPC: Move generic cpm2 stuff to powerpc
This moves the cpm2 common code and PIC stuff to the powerpc. Most of the files
were just copied from ppc/, with minor tuning to make it compile, and, subsequently, work.

Signed-off-by: Vitaly Bordug <vbordug@ru.mvista.com>
2006-09-21 22:18:53 +04:00