u-boot.git/include/fdt_support.h, branch v2020.10

treewide: convert bd_t to struct bd_info manually

2020-07-17T14:46:44+00:00

Some code was not converted by coccinelle, somehow.

I manually fixed up the remaining, and comments, README docs.

Signed-off-by: Masahiro Yamada 
[trini: Add arch/arm/mach-davinci/include/mach/sdmmc_defs.h and
        include/fdt_support.h]
Signed-off-by: Tom Rini

treewide: convert bd_t to struct bd_info by coccinelle

2020-07-17T13:30:13+00:00

The Linux coding style guide (Documentation/process/coding-style.rst)
clearly says:

  It's a **mistake** to use typedef for structures and pointers.

Besides, using typedef for structures is annoying when you try to make
headers self-contained.

Let's say you have the following function declaration in a header:

  void foo(bd_t *bd);

This is not self-contained since bd_t is not defined.

To tell the compiler what 'bd_t' is, you need to include 

  #include 
  void foo(bd_t *bd);

Then, the include direcective pulls in more bloat needlessly.

If you use 'struct bd_info' instead, it is enough to put a forward
declaration as follows:

  struct bd_info;
  void foo(struct bd_info *bd);

Right, typedef'ing bd_t is a mistake.

I used coccinelle to generate this commit.

The semantic patch that makes this change is as follows:

  
  @@
  typedef bd_t;
  @@
  -bd_t
  +struct bd_info
  

Signed-off-by: Masahiro Yamada

libfdt: Make fdtdec_get_child_count() available for HOST

2020-04-24T14:10:01+00:00

The tool need to use fdtdec_get_child_count(), make it available for
HOST_CC.

Signed-off-by: Kever Yang 
Reviewed-by: Punit Agrawal 
Reviewed-by: Simon Glass

common: Move device-tree setup functions to fdt_support.h

2020-01-17T18:27:27+00:00

These functions relate to setting up the device tree for booting the OS.
The fdt_support.h header file supports similar functions, so move these
there.

Signed-off-by: Simon Glass

Include missing headers for fdt_support.h

2020-01-07T23:02:39+00:00

fdt_support.h is missing declarations for bd_t. Including asm/u-boot.h
pulls in the definition.

Signed-off-by: Sean Anderson

common: fdt_support: add support for setting usable memory

2019-12-06T11:09:25+00:00

Add support for setting linux,usable-memory property in the memory
node of device tree for the kernel [1].

This property holds a base address and size, describing a
limited region in which memory may be considered available for use by
the kernel. Memory outside of this range is not available for use.

[1] https://www.kernel.org/doc/Documentation/devicetree/bindings/chosen.txt

Signed-off-by: Igor Opaniuk 
Signed-off-by: Sanchayan Maity 
Signed-off-by: Stefan Agner 
Reviewed-by: Oleksandr Suvorov

dm: core: Introduce xxx_translate_dma_address()

2019-07-22T07:21:28+00:00

Add the following functions to translate DMA address to CPU address:
- dev_translate_dma_address()
- ofnode_translate_dma_address()
- of_translate_dma_address()
- fdt_translate_dma_address()
These functions work the same way as xxx_translate_address(), with the
difference that the translation relies on the "dma-ranges" property
instead of the "ranges" property.

Add related test. Test report:
=> ut dm fdt_translation
Test: dm_test_fdt_translation: test-fdt.c
Test: dm_test_fdt_translation: test-fdt.c (flat tree)
Failures: 0

Signed-off-by: Fabien Dessenne

fdt_support: make fdt_fixup_mtdparts() prototype more specific

2018-07-24T23:47:52+00:00

The second argument of fdt_fixup_mtdparts() is an opaque pointer,
'void *node_info', hence callers can pass any pointer.

Obviously, fdt_fixup_mtdparts() expects 'struct node_info *'
otherwise, it crashes run-time.

Change the prototype so that it is compile-time checked.

Also, add 'const' qualifier to it so that callers can constify
the struct node_info arrays.

Signed-off-by: Masahiro Yamada 
Reviewed-by: Simon Glass

fdt: Add device tree memory bindings

2018-07-09T15:11:00+00:00

Support a default memory bank, specified in reg, as well as
board-specific memory banks in subtree board-id nodes.

This allows memory information to be provided in the device tree,
rather than hard-coded in, which will make it simpler to handle
similar devices with different memory banks, as the board-id values
or masks can be used to match devices.

Signed-off-by: Michael Pratt 
Signed-off-by: Simon Glass 
Reviewed-by: Vadim Bendebury

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