u-boot.git/include/asm-generic/global_data.h, branch v2019.07

watchdog: Implement generic watchdog_reset() version

2019-04-26T07:16:32+00:00

This patch tries to implement a generic watchdog_reset() function that
can be used by all boards that want to service the watchdog device in
U-Boot. This watchdog servicing is enabled via CONFIG_WATCHDOG.

Without this approach, new boards or platforms needed to implement a
board specific version of this functionality, mostly copy'ing the same
code over and over again into their board or platforms code base.

With this new generic function, the scattered other functions are now
removed to be replaced by the generic one. The new version also enables
the configuration of the watchdog timeout via the DT "timeout-sec"
property (if enabled via CONFIG_OF_CONTROL).

This patch also adds a new flag to the GD flags, to flag that the
watchdog is ready to use and adds the pointer to the watchdog device
to the GD. This enables us to remove the global "watchdog_dev"
variable, which was prone to cause problems because of its potentially
very early use in watchdog_reset(), even before the BSS is cleared.

Signed-off-by: Stefan Roese 
Cc: Heiko Schocher 
Cc: Tom Rini 
Cc: Michal Simek 
Cc: "Marek Behún" 
Cc: Daniel Schwierzeck 
Cc: Maxim Sloyko 
Cc: Erik van Luijk 
Cc: Ryder Lee 
Cc: Weijie Gao 
Cc: Simon Glass 
Cc: "Álvaro Fernández Rojas" 
Cc: Philippe Reynes 
Cc: Christophe Leroy 
Reviewed-by: Michal Simek 
Tested-by: Michal Simek  (on zcu100)

dm: core: Change platform specific translation-offset handling

2019-04-24T02:26:43+00:00

Testing has shown that the current DM implementation of a platform /
board specific translation offset, as its needed for the SPL on MVEBU
platforms is buggy. The translation offset is confingured too late,
after the driver bind functions are run. This may result in incorrect
address translations. With the current implementation its not possible
to configure the offset earlier, as the DM code has not run at all.

This patch now removed the set_/get_translation_offset() calls and
moves the translation offset into the GD variable translation_offset.
This variable will get used when CONFIG_TRANSLATION_OFFSET is enabled.
This option is enabled only for MVEBU on ARM32 platforms, where its
currenty needed and configured in the SPL.

Signed-off-by: Stefan Roese 
Cc: Pierre Bourdon 
Cc: Baruch Siach 
Cc: Simon Glass 
Cc: Heiko Schocher 
Cc: Tom Rini 
Tested-by: Pierre Bourdon 
Tested-by: Baruch Siach

lib: fdtdec: Add function re-setup the fdt more effeciently

2018-12-10T06:21:21+00:00

In some cases it may be useful to be able to change the fdt we have been
using and use another one instead. For example, the TI platforms uses an
EEPROM to store board information and, based on the type of board,
different dtbs are used by the SPL. When DM_I2C is used, a first dtb must
be used before the I2C is initialized and only then the final dtb can be
selected.
To speed up the process and reduce memory usage, introduce a new function
fdtdec_setup_best_match() that re-use the DTBs loaded in memory by
fdtdec_setup() to select the best match.

Signed-off-by: Jean-Jacques Hiblot 
Reviewed-by: Heiko Schocher

spl: Add support for passing handoff info to U-Boot proper

2018-11-26T13:25:37+00:00

There is some basic informaton that SPL normally wants to pass through to
U-Boot, such as the SDRAM size and bank information.

Mkae use of the new bloblist structure for this. Add a new 'handoff' blob
which is set up in SPL and passed to U-Boot proper. Also adda  test for
sandbox_spl that checks that this works correctly and a new 'sb' command
to show the information passed from SPL.

Reviewed-by: Tom Rini 
Signed-off-by: Simon Glass

bloblist: Locate bloblist in U-Boot

2018-11-26T13:25:32+00:00

Add support for locating a bloblist in U-Boot that has been set up by SPL.
It is copied into RAM during relocation.

Reviewed-by: Tom Rini 
Signed-off-by: Simon Glass

u-boot: remove driver lookup loop from env_save()

2018-07-30T11:18:47+00:00

When called with ENVOP_SAVE, env_get_location() only returns the
gd->env_load_location variable without actually checking for
the environment location and priority.

This behaviour causes env_save() to fall into an infinite loop when
the low-level drv->save() call fails.

The env_save() function should not loop through the environment
location list but it should save the environment into the location
stored in gd->env_load_location by the last env_load() call.

Signed-off-by: Nicholas Faustini 
Reviewed-by: Simon Goldschmidt

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

env: Fix env_load_location

2018-02-16T16:12:41+00:00

Commit 7d714a24d725 ("env: Support multiple environments") added
static variable env_load_location. When saving environmental
variables, this variable is presumed to have the value set before.
In case the value was set before relocation and U-Boot runs from a
NOR flash, this variable wasn't writable. This causes failure when
saving the environment. To save this location, global data must be
used instead.

Signed-off-by: York Sun 
CC: Maxime Ripard

log: Add control over log formatting

2018-02-03T17:09:27+00:00

It is useful to be able to control the output format of log records on the
console. As a starting point, add definitions for controlling which
elements of the log record are displayed. Use function and message as the
default, since these are the most useful fields.

Signed-off-by: Simon Glass