This converts existing of_translate_address to recently added API. In
contrast to existing behavior, the new function honors ranges properties
properly. It now allows reg properties to be set as offset with respect
to the correspoding parent node.
Signed-off-by: Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
This patch makes OF API use of_delete_property where applicable instead
of freeing allocated data in different places.
Signed-off-by: Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
This adds some sanity checks to of_new_property and of_delete_property.
Also, value pointer is always allocated even with zero length to allow
empty properties to be distinguished from non-existing properties.
Finally, data passed to of_new_property is only copied if non-NULL.
Signed-off-by: Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
With of_get_child_by_name from Linux API, we can now convert and remove
of_find_child_by_name.
Signed-off-by: Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com>
This patch converts users of of_tree_for_each_node to recently added
for_eacg_compatible_node helper. Also of_tree_for_each_node is removed
from public OF API.
Signed-off-by: Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com>
This imports of_prop_next_u32, of_prop_next_string, and the corresponding
for_property_for_each_ helpers from Linux OF API.
Signed-off-by: Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com>
This adds functions to set an array of or a single value for bool,
u8, u16, and u64 properties.
Signed-off-by: Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com>
This imports of_parse_phandle_with_args and of_count_phandle_with_args
from Linux OF API. The slightly different of_parse_phandles_with_args
is removed and all users are converted to reflect the API change.
Signed-off-by: Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com>
This imports of_property_read_* helpers from Linux OF API to allow
to read all kinds of properties.
Signed-off-by: Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com>
This imports of_get_parent, of_get_next_available_child, and
of_get_child_by_name and corresponding helpers from Linux OF API.
of_get_next_child is not imported but implemented as list iterator
instead. Also, of_get_child_count and of_get_available_child_count
are introduced.
Signed-off-by: Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com>
This imports of_find_node_with_property and corresponding helpers
from Linux OF API.
Signed-off-by: Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com>
This imports of_find_matching_node_and_match and corresponding helpers
from Linux OF API.
Signed-off-by: Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com>
This imports of_find_compatible_node and corresponding for_each_compatible_node
helper from Linux OF API.
Signed-off-by: Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com>
This imports of_find_node_by_name and corresponding for_each_node_by_name
helper from Linux OF API.
Signed-off-by: Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com>
According to ePAPR 1.1 spec, device tree nodes status can be either
"okay", "disabled", "fail", or "fail-sss". Barebox already has a function
to check for "disabled" nodes, while Linux checks for "okay" or "ok".
To synchronize Barebox and Linux OF APIs, rename of_node_disabled to
of_device_is_available and check for "okay" instead of "disabled" as it
also makes "fail"ed devices unavailable.
Signed-off-by: Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com>
Barebox of_find_node_by_path requires a node to be passed as start node
to start searching. Linux OF API does not pass this node and no current
user of it in barebox is passing anything else than the root node.
Therefore, we rename current function to of_find_node_by_path_from and
introduce a Linux OF API compatible of_find_node_by_path that always
passes the current root_node. Also, all current users of that function
are updated to reflect the API change.
Signed-off-by: Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
To start synchronizing OF API of barebox with linux OF API, this adds
a length pointer to of_find_property. Also all current users of that
function are updated to reflect the API change.
Signed-off-by: Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com>
Barebox compares compatible, node names, and property names with strcmp.
Linux by default compares compatible and node names with strcasecmp. To
avoid inconsitencies between Barebox and Linux dts files, we convert to
these default string compare functions.
Signed-off-by: Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com>
Current implementation of of_property_write_u32 does free old property
values and allocates new values depending on the size passed. While
copying the new values to the property, corresponding length is not
set. This makes of_property_write_u32 set the length of the new property
values and also adds a API header describing the function.
Signed-off-by: Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com>
of_match_node checks for compatiblity between a set of matches and a
node. Neither the matches nor node pointer are checked for validity.
This adds the required checks to of_match_node.
Signed-off-by: Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com>
It's confusing to set the status of a node to disabled and afterwards
it's invisible. Similarly it's confusing to be able to enable invisible
nodes.
Also print disabled nodes.
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
We used to populate the devices from the devicetree based on the
presence of the 'reg' property. This is incorrect since this only
allows us to probe devices with resources.
Instead use the 'simple-bus' property to see if we have iterate
deeper. This also registers devices with their buses as parents.
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
memory is always in /mem, so call of_add_memory from of_probe once
instead of in the recursive tree iteration. This makes it possible
to limit the device population to nodes with the "simple-bus" property
set.
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
When registering devices from the devicetree we check if these
devices already exist. When doing this not only check the resource
start but also the resource end.
This helps with the probing of simple buses for which child nodes
often begin at the very same address as the parents.
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
This patch separates out the "generic" memory
segment registration function (of_add_memory_bank())
from of_add_memory().
The MIPS architecture has different view on memory
resources than the ARM and PPC architectures
so the "generic" of_add_memory_bank() is
unusable for the MIPS architecture.
We can add MIPS-specific of_add_memory_bank()
into arch/mips code.
Signed-off-by: Antony Pavlov <antonynpavlov@gmail.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Linux expects linux,initrd-end to contain the first unused address. As
this doesn't match the end semantic used by barebox (i.e. end contains
the last used address) adding one is necessary.
Without this change Linux fails for me to correctly extract a gzipped
cpio archive provided as initrd.
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
The phandles have to be parsed completely before registering the devices
from the devicetree. Otherwise drivers can't rely on of_find_node_by_phandle
in their probe.
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Sebastian Hesselbarth
Sascha Hauer
Antony Pavlov
Uwe Kleine-König