libfdt defined a new version of the flattened device tree format,
version 17. It is backwards compatible with version 16, just adding
an extra header field giving the size of the blob's structure blob.
This patch adds support to dtc allowing it to read and write version
17 blobs. It also makes version 17 the default output version for
blobs.
At the same time we change the code to consistently using decimal
numbers for versions. Previously we sometimes used 16 and sometimes
0x10 to refer to version 16.
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
The structure in flat_dt.h defining the layout of a proprety within
the flat device tree is incorrect. It has the offset to the
property's name, then the length when in fact (according to
booting-without-of.txt and the output of dtc) then length should come
first, followed by the name offset.
In fact, this structure is never used so the mistake doesn't break
anything, but it should still be fixed to avoid misleading people.
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
Remove warning for missing interrupt-controller property
under /chosen. There is consensus that this
property does not belong here.
Also, add a warning if interrupt-controller _is_ found
under /chosen.
Signed-off-by: Stuart Yoder <stuart.yoder@freescale.com>
Signed-off-by: Jon Loeliger <jdl@freescale.com>
Add the original simple test case and a case with
different based cell values. Correct output asm
files as well as stderr is captured.
Signed-off-by: Jon Loeliger <jdl@freescale.com>
New syntax d#, b#, o# and h# allow for an explicit prefix
on cell values to specify their base. Eg: <d# 123>
Signed-off-by: Jon Loeliger <jdl@freescale.com>
dtc allows nodes to have labels, which at present are just re-emitted
as symbols at the appropriate places when using asm-mode output. It
also allows "references" where the notation &/path/to/node in a cell
list will be replaced with the phandle of the referenced node.
This patch extends the reference syntax to allow references to labels
instead of just full device paths. This allows nodes deep within the
tree to be referenced with a shorter more convenient name. References
to labels are distinguished from reference to paths by the fact that
paths must start with a /, but labels can never start with a /.
Signed-off-by: David Gibson <dwg@au1.ibm.com>
Signed-off-by: Jon Loeliger <jdl@freescale.com>
At present each property definition in a dts file must give as the
value either a string ("abc..."), a bytestring ([12abcd...]) or a cell
list (<1 2 3 ...>). This patch allows a property value to be given as
several of these, comma-separated. The final property value is just
the components appended together. So a property could have a list of
cells followed by a string, or a bytestring followed by some cells.
Cells are always aligned, so if cells are given following a string or
bytestring which is not a multiple of 4 bytes long, zero bytes are
inserted to align the following cells.
The primary motivation for this feature, however, is to allow defining
a property as a list of several strings. This is what's needed for
defining OF 'compatible' properties, and is less ugly and fiddly than
using embedded \0s in the strings.
Signed-off-by: David Gibson <dwg@au1.ibm.com>
Signed-off-by: Jon Loeliger <jdl@freescale.com>
At present, the tree checking code in dtc will die with an assertion
failure if given a tree which has the invalid value 0 or -1 in a
property which should contain a phandle. This patch fixes the check
to die more gracefully with an error message indicating the invalid
phandle value.
Signed-off-by: David Gibson <dwg@au1.ibm.com>
The linux,platform property in /chosen was obsolete almost as soon as
it was invented. Remove the check for it from dtc, which just tends
to lead to irritating spurious failures.
Signed-off-by: David Gibson <dwg@au1.ibm.com>
The reserve mem regions are screwy if you read a blob on x86. I'm
guessing there may be a few more of these lurking in the code.
Signed-off-by: Michael Neuling <mikey@neuling.org>
dtc always sets the physical boot CPU to 0xfeedbeef. Add a -b option to
set this. Also add warnings when using the wrong property with the
wrong blob version.
Signed-off-by: Michael Neuling <mikey@neuling.org>
even for ASM output. It was inconsistent with the binary
output form, and kernel folks decided to have the early
kernel perform the reservation itself.
it shouldn't be (because the assembler will do the necessary swapping).
The cell values (asm_emit_cell()) are different from the data values
(asm_emit_data()) because the cell values are generated within the
program and don't get swapped like the data values read from the dts file.
They should be left as they are so that the assembler will swap them,
if necessary. For example, when the property length field was 4,
the asm output contained ".long 0x4000000" and sent the kernel prom.c
dt parsing code into the weeds.
Pointed out by Mark Greer.
Add device-type and compatible as required fields for mdio node; add eTSEC
to ethernet model options.
Signed-off-by: Becky Bruce <Becky.bruce@freescale.com>
David Gibson