u-boot.git/include/fdt_support.h, branch v2021.01

cmd: Fixup DT to pass PStore Ramoops parameters

2020-10-14T15:16:34+00:00

To simplify configuration and keep synchronized the PStore/Ramoops between
U-Boot and the Linux kernel, this commit dynamically adds the Ramoops
parameters defined in the U-Boot session to the Device Tree.

Signed-off-by: Frédéric Danis 
Cc: Tom Rini 
Cc: Heinrich Schuchardt 
Cc: Wolfgang Denk 
Cc: Heiko Schocher

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