Commit Graph

11 Commits

Author SHA1 Message Date
Benoit Cousson 35f3da32af of/address: Add reg-names property to name an iomem resource
Add a reg-names property to allow for reg regions to be reference by name
instead of by index.  Some devices have multiple register regions which
are more naturally referenced by name.

If the name is available, use it to name the resource when creating a devices.
Otherwise keep the device name.

Signed-off-by: Benoit Cousson <b-cousson@ti.com>
Cc: Grant Likely <grant.likely@secretlab.ca>
Cc: Rob Herring <rob.herring@calxeda.com>
[Generalized documentation to be for any -names property]
Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
2012-01-04 00:27:22 -07:00
Felipe Balbi 28c1b6d60e of: address: use resource_size helper
that should be the approved way of calculating
the size of resources. No functional changes.

Cc: Grant Likely <grant.likely@secretlab.ca>
Signed-off-by: Felipe Balbi <balbi@ti.com>
Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
2011-08-01 12:55:02 +01:00
Grant Likely 90e33f62e0 of/address: Add of_find_matching_node_by_address helper
of_find_matching_node_by_address() can be used to find a device tree
node for a device at a specific address.

Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
2011-07-18 16:32:26 -06:00
Sebastian Andrzej Siewior 0131d8973c of/address: use proper endianess in get_flags
This patch changes u32 to __be32 for all "ranges", "prop" and "addr" and
such. Those variables are pointing to the device tree which contains
integers in big endian format.

Most functions are doing it right because of_read_number() is doing the
right thing for them. of_bus_isa_get_flags(), of_bus_pci_get_flags() and
of_bus_isa_map() were accessing the data directly and were doing it wrong.

Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Acked-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
2010-12-23 15:57:48 -07:00
Jeremy Kerr a9fadeefdc of: use __be32 types for big-endian device tree data
Use the sparse annotations so we can keep track of endianness.

Signed-off-by: Jeremy Kerr <jeremy.kerr@canonical.com>
Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
2010-10-12 21:58:42 -06:00
Grant Likely d3571c3acf of: Use full node name in resource structures
Resource names appear in human readable output, so when extracting IRQ
and address resources from a device tree node, use the full node name
to give proper context in places like /proc/iomem.

Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
CC: Michal Simek <monstr@monstr.eu>
CC: Stephen Rothwell <sfr@canb.auug.org.au>
CC: Benjamin Herrenschmidt <benh@kernel.crashing.org>
CC: microblaze-uclinux@itee.uq.edu.au
CC: linuxppc-dev@ozlabs.org
2010-07-05 16:14:27 -06:00
Grant Likely 3930f294d0 of/address: restrict 'no-ranges' kludge to powerpc
Certain Apple machines don't use the ranges property correctly, but the
workaround should not be applied on other architectures.  This patch
disables the workaround for non-powerpc architectures.

Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
Acked-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
CC: Stephen Rothwell <sfr@canb.auug.org.au>
2010-07-05 16:14:27 -06:00
Grant Likely 154063a9c0 of/address: little-endian fixes
Fix some endian issues in the OF address translation code.

Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
Acked-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
CC: Michal Simek <monstr@monstr.eu>
CC: Stephen Rothwell <sfr@canb.auug.org.au>
2010-07-05 16:14:27 -06:00
Grant Likely dbbdee9473 of/address: Merge all of the bus translation code
Microblaze and PowerPC share a large chunk of code for translating
OF device tree data into usable addresses.  Differences between the two
consist of cosmetic differences, and the addition of dma-ranges support
code to powerpc but not microblaze.  This patch moves the powerpc
version into common code and applies many of the cosmetic (non-functional)
changes from the microblaze version.

Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
Acked-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
CC: Michal Simek <monstr@monstr.eu>
CC: Wolfram Sang <w.sang@pengutronix.de>
CC: Stephen Rothwell <sfr@canb.auug.org.au>
2010-07-05 16:14:26 -06:00
Grant Likely 1f5bef30cf of/address: merge of_address_to_resource()
Merge common code between PowerPC and Microblaze.  This patch also
moves the prototype of pci_address_to_pio() out of pci-bridge.h and
into prom.h because the only user of pci_address_to_pio() is
of_address_to_resource().

Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
Acked-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
CC: Michal Simek <monstr@monstr.eu>
CC: Stephen Rothwell <sfr@canb.auug.org.au>
2010-07-05 16:14:26 -06:00
Grant Likely 6b884a8d50 of/address: merge of_iomap()
Merge common code between Microblaze and PowerPC.  This patch creates
new of_address.h and address.c files to containing address translation
and mapping routines.  First routine to be moved it of_iomap()

Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
Acked-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
CC: Michal Simek <monstr@monstr.eu>
CC: Stephen Rothwell <sfr@canb.auug.org.au>
2010-07-05 16:14:26 -06:00