u-boot.git/include/linux, branch v2020.10-rc5

include: kernel.h: define SSIZE_MAX

2020-08-24T14:37:53+00:00

Define SSIZE_MAX, the largest value fitting into a variable of type
ssize_t.

Signed-off-by: Heinrich Schuchardt

linux/compat.h: Add wait_event_timeout macro

2020-08-14T19:18:30+00:00

Add  wait_event_timeout - sleep until a condition gets true or a
timeout elapses.

This is a stripped version of the same from Linux kernel with the
following u-boot specific modifications:
- no wait queues supported
- use u-boot timer to detect timeouts
- check for Ctrl-C pressed during wait

Signed-off-by: Oleksandr Andrushchenko 
Signed-off-by: Anastasiia Lukianenko 
[trini: Drop atomic_read from gadget/ether.c as this has existed for a
        while and now causes problems]
Signed-off-by: Tom Rini

clk: Drop dm.h header file in clk-provider.h

2020-08-04T02:19:54+00:00

This header file should not be included in other header files. Remove it
and use a forward declaration and un-inlining of dev_get_clk_ptr()
instead.

Fix up the kendryte header files to avoid build errors.

Signed-off-by: Simon Glass 
Reviewed-by: Sean Anderson

mtd: spinand: micron: identify SPI NAND device with Continuous Read mode

2020-07-20T16:58:33+00:00

Add SPINAND_HAS_CR_FEAT_BIT flag to identify the SPI NAND device with
the Continuous Read mode.

Some of the Micron SPI NAND devices have the "Continuous Read" feature
enabled by default, which does not fit the subsystem needs.

In this mode, the READ CACHE command doesn't require the starting column
address. The device always output the data starting from the first
column of the cache register, and once the end of the cache register
reached, the data output continues through the next page. With the
continuous read mode, it is possible to read out the entire block using
a single READ command, and once the end of the block reached, the output
pins become High-Z state. However, during this mode the read command
doesn't output the OOB area.

Hence, we disable the feature at probe time.

Signed-off-by: Shivamurthy Shastri 
Acked-by: Jagan Teki

soc: ti: k3-ringacc: Add an API to request pair of rings

2020-07-13T15:28:34+00:00

Add new API k3_ringacc_request_rings_pair() to request pair of rings at
once, as in the most case Rings are used with DMA channels which required
to request pair of rings - one to feed DMA with descriptors (TX/RX FDQ) and
one to receive completions (RX/TX CQ). This will allow to simplify Ringacc
API users.

Signed-off-by: Vignesh Raghavendra

Merge tag 'rpi-next-2020.10' of https://gitlab.denx.de/u-boot/custodians/u-boot-raspberrypi

2020-07-10T18:31:22+00:00

- add support for PCI and XHCI for RPi4 (64 bit only)
- optionally reset XHCI device on registration
- enable USB_KEYBOARD for rpi_4_defconfig

linux/bitfield.h: Add primitives for manipulating bitfields both in host- and fixed-endian

2020-07-10T09:47:12+00:00

Imports Al Viro's original Linux commit 00b0c9b82663a, which contains
an in depth explanation and two fixes from Johannes Berg:
 e7d4a95da86e0 "bitfield: fix *_encode_bits()",
 37a3862e12382 "bitfield: add u8 helpers".

Signed-off-by: Nicolas Saenz Julienne 
[s.nawrocki: added empty lines between functions and macros]
Signed-off-by: Sylwester Nawrocki 
[mb: squash fix including byteorder.h]
Signed-off-by: Matthias Brugger

linux/kconfig.h: create two- and three-argument versions of CONFIG_IS_ENABLED

2020-07-09T04:33:24+00:00

This adds a bunch of preprocessor magic to extend the capabilities of
CONFIG_IS_ENABLED. The existing semantics of

  CONFIG_IS_ENABLED(FOO)

expanding to a 1 or 0 (depending on build context and the defined-ness
or not of the appropriate CONFIG_FOO/CONFIG_SPL_FOO/CONFIG_TPL_FOO)
are of course preserved. With this, one is also allowed a two-argument
form

  CONFIG_IS_ENABLED(FOO, (something))

which expands to something precisely when CONFIG_IS_ENABLED(FOO) would
expand to 1, and expands to nothing otherwise. It is, in other words,
completely equivalent to the three lines

  #if CONFIG_IS_ENABLED(FOO)
  something
  #endif

The second argument must be parenthesized in order to allow any
tokens, including a trailing comma, to appear - one use case for this
is precisely to make it a bit more ergonomic to build an array and
only include certain items depending on .config. That should increase
both readability and not least "git grep"ability.

A third variant is also introduced,

  CONFIG_IS_ENABLED(FOO, (xxx), (yyy))

which corresponds to

  #if CONFIG_IS_ENABLED(FOO)
  xxx
  #else
  yyy
  #endif

Signed-off-by: Rasmus Villemoes 
Reviewed-by: Simon Glass 
Signed-off-by: Simon Glass

linux/kconfig.h: remove unused helper macros

2020-07-09T04:33:24+00:00

U-Boot does not have loadable modules, and nothing currently uses any
of the (CONFIG_)?IS_(BUILTIN|MODULE) macros - only
the (CONFIG_)?IS_ENABLED variants are ever used.

While I understand the desire to keep this somewhat synchronized with
linux, we've already departed by the introduction of the
CONFIG_IS_ENABLED extra logic, and deleting these makes the next patch
much simpler, since I won't have to duplicate a lot of logic for no
real gain (as there are no users).

Signed-off-by: Rasmus Villemoes 
Reviewed-by: Simon Glass 
Signed-off-by: Simon Glass

linux/kconfig.h: simplify logic for choosing CONFIG_{SPL_, TPL_, }*

2020-07-09T04:33:24+00:00

Instead of using the arg1_or_junk trick to pick between two choices,
with a bit of duplication between the branches (and most of the
CONFIG_TPL_BUILD case being redundant, as _IS_TPL is known to be
defined to 1 in that case), simply define a prefix that we inject
between CONFIG_ and the given config symbol.

This only requires one level of indirection (to get the
_CONFIG_PREFIX macro expanded before the token concatenation takes
place), and makes it easy to, say, introduce a CONFIG_HOSTTOOL_
prefix. [I would expect most HOSTTOOL_ symbols to just be def_bool y,
but it would allow us to clean up some of the ifdef HOSTCC mess in the
sources shared between U-Boot and host tools.]

Signed-off-by: Rasmus Villemoes 
Reviewed-by: Simon Glass 
Signed-off-by: Simon Glass