u-boot.git/include/fdt_support.h, branch v2017.03

libfdt: replace ARCH_FIXUP_FDT with ARCH_FIXUP_FDT_MEMORY

2016-12-03T03:54:34+00:00

Commit e2f88dfd2d96 ("libfdt: Introduce new ARCH_FIXUP_FDT option")
allows us to skip memory setup of DTB, but a problem for ARM is that
spin_table_update_dt() and psci_update_dt() are skipped as well if
CONFIG_ARCH_FIXUP_FDT is disabled.

This commit allows us to skip only fdt_fixup_memory_banks() instead
of the whole of arch_fixup_fdt().  It will be useful when we want to
use a memory node from a kernel DTB as is, but need some fixups for
Spin-Table/PSCI.

Signed-off-by: Masahiro Yamada 
Acked-by: Alexey Brodkin 
Acked-by: Simon Glass 
Fixed build error for x86:
Signed-off-by: Simon Glass

cmd/fdt: add possibilty to have 'extrasize' on fdt resize

2016-10-13T19:54:10+00:00

Sometimes devicetree nodes and or properties are added out of the u-boot
console, maybe through some script or manual interaction.

The devicetree as loaded or embedded is quite small, so the devicetree
has to be resized to take up those new nodes/properties.

In original the devicetree was only extended by effective
4 * add_mem_rsv.

With this commit we can add an argument to the "fdt resize" command,
which takes the extrasize to be added.

Signed-off-by: Hannes Schmelzer 

Signed-off-by: Hannes Schmelzer 
Acked-by: Simon Glass

usb: fsl: Rename fdt_fixup_dr_usb

2016-09-27T21:30:27+00:00

The function fdt_fixup_dr_usb is specific to fsl/nxp. So,
make the function name explicit and rename fdt_fixup_dr_usb
into fsl_fdt_fixup_dr_usb.

Signed-off-by: Sriram Dash

fdt_support: fdt_translate_address() blob const correctness

2016-08-12T15:20:27+00:00

The next patch will call fdt_translate_address() from somewhere with a
"const void *blob" rather than a "void *blob", so fdt_translate_address()
must accept a const pointer too. Constify the minimum number of function
parameters to achieve this.

Signed-off-by: Stephen Warren 
Acked-by: Simon Glass 
Squashed in build fix from Stephen:
Signed-off-by: Simon Glass

fdt_support: define stub for fdt_fixup_mtdparts

2016-07-19T17:52:12+00:00

Define an inline stub for fdt_fixup_mtdparts in the case that
CONFIG_FDT_FIXUP_PARTITIONS is not defined. This avoids the need
to guard every call to this function by a proper #ifdef in board
files.

Signed-off-by: Christopher Spinrath 
Reviewed-by: Simon Glass 
Reviewed-by: Igor Grinberg

drivers:usb:common:fsl-dt-fixup: Add device-tree fixup support for xhci controller

2016-04-10T15:18:42+00:00

Enables usb device-tree fixup code to incorporate xhci controller

Signed-off-by: Ramneek Mehresh 
Signed-off-by: Sriram Dash

fdt: prevent clearing memory node if there are no banks

2015-07-20T13:21:47+00:00

Avoid clearing the reg property in the memory DT node if no memory
banks have been specified for a board (CONFIG_NR_DRAM_BANKS == 0).
This allows boards to let U-Boot skip the DT memory tinkering in case
other firmware has already setup the node properly before.
This should be safe as all callers of fdt_fixup_memory_banks that use
a computed  value put at least 1 in there.
Add some documentation comments to the header file.

Signed-off-by: Andre Przywara 
Acked-by: Simon Glass

fdt: Documentation for a few support functions aside their prototypes

2015-06-05T14:32:58+00:00

This instroduces comments that explain the purpose, parameters and return codes
of a few fdt support functions, that are used to fill the fdt.

Signed-off-by: Paul Kocialkowski 
Acked-by: Simon Glass

fdt: Pass the device serial number through devicetree

2015-06-05T14:32:07+00:00

Before device-tree, the device serial number used to be passed to the kernel
using ATAGs (on ARM). This is now deprecated and all the handover to the kernel
should now be done using device-tree. Thus, this passes the serial-number
property to the kernel using the serial-number property of the root node, as
expected by the kernel.

The serial number is a string that somewhat represents the device's serial
number. It might come from some form of storage (e.g. an eeprom) and be
programmed at factory-time by the manufacturer or come from identification
bits available in e.g. the SoC.

Signed-off-by: Paul Kocialkowski 
Reviewed-by: Simon Glass

fdt: add new fdt_fixup_display function to configure display

2015-04-22T12:39:06+00:00

Add 'fdt_fixup_display' function to fixup device-tree native-mode property
of display-timings node to select timings for a specific display.
This is useful if a device-tree has configurations for multiple
display timings for undetectable displays.

see kernel Documentation/devicetree/bindings/video/display-timing.txt

Signed-off-by: Tim Harvey 
Acked-by: Simon Glass