linux-toradex.git/arch/powerpc/sysdev/cpm2_pic.c, branch v2.6.27.54

powerpc: Fix irq_alloc_host() reference counting and callers

2008-06-09T03:51:16+00:00

When I changed irq_alloc_host() to take an of_node
(52964f87c64e6c6ea671b5bf3030fb1494090a48: "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 
Signed-off-by: Paul Mackerras

[POWERPC] cpm2: Infrastructure code cleanup.

2007-10-04T16:02:04+00:00

Mostly sparse fixes (__iomem annotations, etc); also, cpm2_immr
is used rather than creating many temporary mappings.

Signed-off-by: Scott Wood 
Signed-off-by: Kumar Gala

[POWERPC] Provide a default irq_host match, which matches on an exact of_node

2007-09-13T15:33:20+00:00

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 
Signed-off-by: Paul Mackerras

[POWERPC] Add an optional device_node pointer to the irq_host

2007-09-13T15:33:20+00:00

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 
Signed-off-by: Paul Mackerras

[POWERPC] cpm2: CPM2 interrupt controller fix

2007-02-07T03:03:20+00:00

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 
Signed-off-by: Paul Mackerras

[POWERPC] arch/powerpc/sysdev/cpm2_pic.c of_node_get cleanup

2007-01-24T10:13:57+00:00

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 
Signed-off-by: Paul Mackerras

[POWERPC] Fix up after irq changes

2006-10-07T12:08:26+00:00

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 
Signed-off-by: Paul Mackerras

POWERPC: 8272ads merge to powerpc: common stuff

2006-10-03T17:36:00+00:00

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

POWERPC: Get rid of remapping the whole immr

2006-09-21T18:37:58+00:00

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(),
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

POWERPC: Move generic cpm2 stuff to powerpc

2006-09-21T18:18:53+00:00

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