rename file_operations -> cdev_operations ...

Linux also has struct file_operations which are something different.
Rename our file_operations to cdev_operations which better matches
what we have.

Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

Release v2018.04.0 ...

Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

dts: update to v4.16 ...

Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

dts: update to v4.16-rc7 ...

Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

dts: update to v4.16-rc6 ...

Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

dts: update to v4.16-rc5 ...

Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

dts: update to v4.16-rc4 ...

Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

ARM: zbarebox: Fix linking with new ld ...

Based on "333ff7b1e Fix linking with new ld, based on u-boot" Fix
building for the single PBL case aswell.

Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

Documentation: framebuffer: update documentation to current state ...

Framebuffer console support was added in 2015.

Reported-by: TobSnyder at #barebox irc
Signed-off-by: Oleksij Rempel <linux@rempel-privat.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

ARM: aarch64: Make early MMU support work ...

Until now it was not possible to enable the MMU in PBL because
create_section needs memory allocations which are not available. With
this patch we move the early MMU support to a separate file and all
necessary aux functions to mmu_64.h. create_sections is reimplmented
for the early case to only create 1st level pagetables.

Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

ARM: change mmu_early_enable() prototype ...

Change the arguements to type unsigned long which is suitable for both
arm32 and arm64. While at it move the prototype to arch/arm/include/.

Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

ARM: create separate mmu_64.h file ...

cpu/mmu.h has nothing in common for the 32bit and 64bit variant. Make it
two separate files.

Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

ARM: Create own cache.c file for aarch64 ...

cache.c does not work properly for aarch64. We create a struct cache_fns
using C preprocessor foo which assumes the existence of cache
maintenance operations with a certain name. These functions have other
names on aarch64. While we could fix this we do not need the automatic
cache function selection on aarch64 since here we only have one function
set.
Create a separate file and be done with this issue.

Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

ARM: build: Remove duplicate file compilation ...

cache.o is already obj-y, drop unnecessary obj-$(CONFIG_MMU)

Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

ARM: cache-armv4: Fix wrong section ...

The v4_mmu_cache_on function should be in a section with the same name.

Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

ARM: aarch64: Add support to start kernel and barebox ...

aarch64 has its own image format. Add a bootm handler to handle this
format. Also add a barebox handler.

Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

ARM: aarch64: disable 32bit boot commands ...

The 32bit boot support is full of legacy cruft. While it should be
possible to merge the aarch64 support there, a fresh start looks more
promising.

Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

bootm: provide handlers the start of the OS image ...

The bootm code needs to read the beginning of the OS image in order to
determine the filetype. If it does so already, then we can provide the
handlers the buffer. This can help the handlers to find some image
metadata before loading the full image.

Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

common: Add functions to find free RAM ...

The bootm code needs to put the Kernel image and initrd into free
RAM. Add some functions to find free RAM chunks to help this code.

Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

filetype: Detect ARM aarch64 Linux images ...

ARM aarch64 Linux image have a special type. Allow to detect them.

Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

ARM: aarch64: Add barebox head support ...

Allow aarch64 images to use the same image header as arm32 images.

Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

dma: apbh: Enable clock as a part of probing ...

Enable clock as a part of probing in order to avoid problems on SoCs
that do not have this block ungated out of reset (e.g. i.MX7).

Signed-off-by: Andrey Smirnov <andrew.smirnov@gmail.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

clk: Forward declare struct of_device_id in linux/clk.h ...

Forward declare struct of_device_id in linux/clk.h in order to avoid
warnings like the following:

warning: 'struct of_device_id' declared inside parameter list will not be visible outside
of this definition or declaration
 int of_clk_init(struct device_node *root, const struct of_device_id *matches);
                                                        ^~~~~~~~~~~~

Signed-off-by: Andrey Smirnov <andrew.smirnov@gmail.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

clk: i.MX7: Port NAND clock setup code from Linux ...

Port Linux kernel commit 22039d150f716e4e ("clk: imx7d: create clocks
behind rawnand clock gate") in order to correctly initialize clocks
necessary for APBH DMA block to be functional on i.MX7

Signed-off-by: Andrey Smirnov <andrew.smirnov@gmail.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

aiodev: Constify 'unit' in 'struct aiodev' ...

The way it is currently used, there's no reason for 'uint' field to be
mutable, so constify it in order to allow 'aiodev' drivers to pass
sting literals in that field.

Signed-off-by: Andrey Smirnov <andrew.smirnov@gmail.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

lib: Port CRC-CCITT functions from Linux kernel ...

Port CRC-CCITT implemenation in order to support porting MFD driver
for RAVE SP.

Signed-off-by: Andrey Smirnov <andrew.smirnov@gmail.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

of: partition: fix typo when writing #address-cells ...

On > 4 GiB eMMC devices, barebox writes a 32-bit address and a 64-bit
size into the partition reg property, because #address-cells is
accidentally written as '#addres-cells'. This causes a fallback to
32-bit address size. Fix the typo and thereby of_partition_fixup for
64-bit partitions.

Fixes: a2fa18f9f483 ("mtd: of: Make used partition binding configurable")
Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

dt-bindings: Drop unused files ...

include/dt-bindings is not included in device tree builds anymore since
2014. Since then this directory is unused, so remove the files in it.

Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

ARM: aarch64: implement ignoring data aborts ...

Data aborts can be masked using the data_abort_mask() function.
Add the missing pieces for functionality on aarch64 so that the
'md' command is safe to call even with faulting addresses.

Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

ARM: aarch64: print more information on sync exception ...

On a sync exception more useful information can be printed than we
currently do. Pass the ESR and FAR value to do_sync and print the
reason for the exception along with the address that actually faulted.

Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>