These function allow to read the eeprom and parse the board descriptor.
The goal is then to set the mac address of the ethernet interface.
BugzID: 70346
This symlink is created in yocto but is required to build uboot
properly.
In order to avoid mixing freescale common and netmodule common, it is
better and costs nothing to have it permanent here.
BugzID: 70346
To avoid board specificy LED activation code, automatically
activate gpio-leds with "default-state" property during bind().
Signed-off-by: Patrick Bruenn <p.bruenn@beckhoff.com>
Add support for the device tree property "default-state". This feature
might be useful for LEDs indicating "power on" or similar states.
Note: Even with this commit gpio-leds remain in reset state. That's
because the led_gpio is not probed until DM_FLAG_ACTIVATED is set.
Signed-off-by: Patrick Bruenn <p.bruenn@beckhoff.com>
With fdt_high = 0xffffffffffffffff, the fdt is not relocated and
used "in place" from its location in the fitImage. Since this location
can be overwritten while booting it can be unsafe.
By undefining the variable, the fdt will be relocated at the top of the
memory.
BugzID: 60949
In ext4, the file inode can store up to 4 extents. If a file requires
more (due to size or fragmentation), an extent index tree is used.
Currently, u-boot reads a node from each level of the extent tree
for every block read, which is very inefficient when extent tree
depth is > 0.
This patch adds a cache for the extent tree. We cache the 1
most-recently-seen node at each extent tree level. The typical workload
is sequential block access, so once we leave a given tree node, it will
not be revisited. Therefore, it makes sense to just cache one node
per tree level.
Cached blocks are lazily allocated. The typical case is extent tree
depth = 0, in which case no caching is needed and no allocations will
occur.
For files with extent tree depth = 1, this patch produces a ~10x
improvement in read speed. For deeper extent trees, the improvement is
larger. On my test device, a 3MB file which previously took 9s to read
now takes 150ms.
Cache size is configurable with CONFIG_EXT4_EXTENT_CACHE_SIZE. However
the default of 5 (the maximum depth of well-formed extent trees) is
recommended.
Signed-off-by: Evan Thompson <evan.thompson@flukenetworks.com>
Reviewed-by: Tom Rini <trini@konsulko.com>
Cherry-picked-by: Alexandre Bard <alexandre.bard@netmodule.com>
BugzID: 57904
First partition (root) starts at 64k.
Writing the environnement at this place breaks it.
64k is now the top boundary of the environnement.
BugzID: 57825
Alexandre Bard
Andrejs Cainikovs
Patrick Bruenn
Evan Thompson
Ramon Moesching