u-boot.git/drivers/core/ofnode.c, branch v2018.05

SPDX: Convert all of our single license tags to Linux Kernel style

2018-05-07T13:34:12+00:00

When U-Boot started using SPDX tags we were among the early adopters and
there weren't a lot of other examples to borrow from.  So we picked the
area of the file that usually had a full license text and replaced it
with an appropriate SPDX-License-Identifier: entry.  Since then, the
Linux Kernel has adopted SPDX tags and they place it as the very first
line in a file (except where shebangs are used, then it's second line)
and with slightly different comment styles than us.

In part due to community overlap, in part due to better tag visibility
and in part for other minor reasons, switch over to that style.

This commit changes all instances where we have a single declared
license in the tag as both the before and after are identical in tag
contents.  There's also a few places where I found we did not have a tag
and have introduced one.

Signed-off-by: Tom Rini

core: ofnode: Fix translation for #size-cells == 0

2018-04-01T14:19:10+00:00

Commit 286ede6 ("drivers: core: Add translation in live tree case") made
dev_get_addr always use proper bus translations for addresses read from
the device tree. But this leads to problems with certain busses, e.g.
I2C busses, which run into an error during translation, and hence stop
working.

It turns out that of_translate_address() and fdt_translate_address()
stop the address translation with an error when they're asked to
translate addresses for busses where #size-cells == 0 (comment from
drivers/core/of_addr.c):

 * Note: We consider that crossing any level with #size-cells == 0 to mean
 * that translation is impossible (that is we are not dealing with a value
 * that can be mapped to a cpu physical address). This is not really specified
 * that way, but this is traditionally the way IBM at least do things

To fix this case, we check in both the live-tree and non-live tree-case,
whether the bus of the device whose address is about to be translated
has size-cell size zero. If this is the case, we just read the address
as a plain integer and return it, and only apply bus translations if the
size-cell size if greater than zero.

Signed-off-by: Mario Six 
Signed-off-by: Martin Fuzzey 
Reported-by: Martin Fuzzey 
Fixes: 286ede6 ("drivers: core: Add translation in live tree case")
Reviewed-by: Simon Glass

libfdt: move headers to and

2018-03-05T15:16:28+00:00

Thomas reported U-Boot failed to build host tools if libfdt-devel
package is installed because tools include libfdt headers from
/usr/include/ instead of using internal ones.

This commit moves the header code:
  include/libfdt.h         -> include/linux/libfdt.h
  include/libfdt_env.h     -> include/linux/libfdt_env.h

and replaces include directives:
  #include       -> #include 
  #include   -> #include 

Reported-by: Thomas Petazzoni 
Signed-off-by: Masahiro Yamada

core: add ofnode_get_by_phandle() api

2018-02-23T19:48:09+00:00

We need to get ofnode from a phandle, add interface to support
both live dt and fdt.

Signed-off-by: Kever Yang 
Reviewed-by: Simon Glass 
Reviewed-by: Philipp Tomsich 
Tested-by: Klaus Goger 
Signed-off-by: Philipp Tomsich

core: ofnode: add ofnode_get_parent function

2018-02-23T19:47:47+00:00

The Rockchip video drivers need to walk the ofnode-parrents to find
an enclosing device that has a UCLASS_DISPLAY driver bound.  This
adds a ofnode_get_parent()-function that returns the parent-node.

Signed-off-by: Philipp Tomsich 
Tested-by: Klaus Goger 
Reviewed-by: Anatolij Gustschin

core: Add {ofnode, dev}_translate_address functions

2018-01-21T17:01:02+00:00

Reviewed-by: Simon Glass 
Signed-off-by: Mario Six

core: ofnode: Fix style violations

2018-01-21T17:01:02+00:00

There are some style violations in ofnode.c; fix those.

Reviewed-by: Simon Glass 
Signed-off-by: Mario Six

drivers: core: Add translation in live tree case

2018-01-21T17:01:02+00:00

The function dev_read_addr calls ofnode_get_addr_index in the live tree
case, which does not apply bus translations to the address read from the
device tree. This results in illegal addresses on boards that rely on
bus translations being applied.

Fix this situation by applying bus translations in the live tree case as
well.

Signed-off-by: Mario Six 
Tested-by: Stephen Warren

dm: ofnode: query correct property in livetree ofnode_get_addr_size

2017-10-09T02:41:09+00:00

The livetree codepath of ofnode_get_addr_size always used the "reg"
property for of_get_property. Use the property parameter of the function
call instead and check the return value if the property exists.
Otherwise return FDT_ADDR_T_NONE.

This was discoverd while using SPI NOR with livetree.
spi_flash_decode_fdt checks for memory-map and will not fail with
livetree even if the property does not exist.

Signed-off-by: Klaus Goger 
Reviewed-by: Philipp Tomsich 
Reviewed-by: Simon Glass

dm: core: Add ofnode_for_each_subnode()

2017-09-12T03:43:58+00:00

Add a convenience macro to iterate over subnodes of a node. Make use of
this where appropriate in the code.

Signed-off-by: Simon Glass